smb: move client and server files to common directory fs/smb

Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko
and helper modules) to new fs/smb subdirectory:

   fs/cifs --> fs/smb/client
   fs/ksmbd --> fs/smb/server
   fs/smbfs_common --> fs/smb/common

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>

1 files changed, 0 insertions, 8607 deletions

diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
deleted file mode 100644
index 717bcd20545b..000000000000
--- a/fs/ksmbd/smb2pdu.c
+++ /dev/null
@@ -1,8607 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *   Copyright (C) 2016 Namjae Jeon <linkinjeon@kernel.org>
- *   Copyright (C) 2018 Samsung Electronics Co., Ltd.
- */
-
-#include <linux/inetdevice.h>
-#include <net/addrconf.h>
-#include <linux/syscalls.h>
-#include <linux/namei.h>
-#include <linux/statfs.h>
-#include <linux/ethtool.h>
-#include <linux/falloc.h>
-#include <linux/mount.h>
-#include <linux/filelock.h>
-
-#include "glob.h"
-#include "smbfsctl.h"
-#include "oplock.h"
-#include "smbacl.h"
-
-#include "auth.h"
-#include "asn1.h"
-#include "connection.h"
-#include "transport_ipc.h"
-#include "transport_rdma.h"
-#include "vfs.h"
-#include "vfs_cache.h"
-#include "misc.h"
-
-#include "server.h"
-#include "smb_common.h"
-#include "smbstatus.h"
-#include "ksmbd_work.h"
-#include "mgmt/user_config.h"
-#include "mgmt/share_config.h"
-#include "mgmt/tree_connect.h"
-#include "mgmt/user_session.h"
-#include "mgmt/ksmbd_ida.h"
-#include "ndr.h"
-
-static void __wbuf(struct ksmbd_work *work, void **req, void **rsp)
-{
-	if (work->next_smb2_rcv_hdr_off) {
-		*req = ksmbd_req_buf_next(work);
-		*rsp = ksmbd_resp_buf_next(work);
-	} else {
-		*req = smb2_get_msg(work->request_buf);
-		*rsp = smb2_get_msg(work->response_buf);
-	}
-}
-
-#define WORK_BUFFERS(w, rq, rs)	__wbuf((w), (void **)&(rq), (void **)&(rs))
-
-/**
- * check_session_id() - check for valid session id in smb header
- * @conn:	connection instance
- * @id:		session id from smb header
- *
- * Return:      1 if valid session id, otherwise 0
- */
-static inline bool check_session_id(struct ksmbd_conn *conn, u64 id)
-{
-	struct ksmbd_session *sess;
-
-	if (id == 0 || id == -1)
-		return false;
-
-	sess = ksmbd_session_lookup_all(conn, id);
-	if (sess)
-		return true;
-	pr_err("Invalid user session id: %llu\n", id);
-	return false;
-}
-
-struct channel *lookup_chann_list(struct ksmbd_session *sess, struct ksmbd_conn *conn)
-{
-	return xa_load(&sess->ksmbd_chann_list, (long)conn);
-}
-
-/**
- * smb2_get_ksmbd_tcon() - get tree connection information using a tree id.
- * @work:	smb work
- *
- * Return:	0 if there is a tree connection matched or these are
- *		skipable commands, otherwise error
- */
-int smb2_get_ksmbd_tcon(struct ksmbd_work *work)
-{
-	struct smb2_hdr *req_hdr = smb2_get_msg(work->request_buf);
-	unsigned int cmd = le16_to_cpu(req_hdr->Command);
-	int tree_id;
-
-	work->tcon = NULL;
-	if (cmd == SMB2_TREE_CONNECT_HE ||
-	    cmd ==  SMB2_CANCEL_HE ||
-	    cmd ==  SMB2_LOGOFF_HE) {
-		ksmbd_debug(SMB, "skip to check tree connect request\n");
-		return 0;
-	}
-
-	if (xa_empty(&work->sess->tree_conns)) {
-		ksmbd_debug(SMB, "NO tree connected\n");
-		return -ENOENT;
-	}
-
-	tree_id = le32_to_cpu(req_hdr->Id.SyncId.TreeId);
-	work->tcon = ksmbd_tree_conn_lookup(work->sess, tree_id);
-	if (!work->tcon) {
-		pr_err("Invalid tid %d\n", tree_id);
-		return -EINVAL;
-	}
-
-	return 1;
-}
-
-/**
- * smb2_set_err_rsp() - set error response code on smb response
- * @work:	smb work containing response buffer
- */
-void smb2_set_err_rsp(struct ksmbd_work *work)
-{
-	struct smb2_err_rsp *err_rsp;
-
-	if (work->next_smb2_rcv_hdr_off)
-		err_rsp = ksmbd_resp_buf_next(work);
-	else
-		err_rsp = smb2_get_msg(work->response_buf);
-
-	if (err_rsp->hdr.Status != STATUS_STOPPED_ON_SYMLINK) {
-		err_rsp->StructureSize = SMB2_ERROR_STRUCTURE_SIZE2_LE;
-		err_rsp->ErrorContextCount = 0;
-		err_rsp->Reserved = 0;
-		err_rsp->ByteCount = 0;
-		err_rsp->ErrorData[0] = 0;
-		inc_rfc1001_len(work->response_buf, SMB2_ERROR_STRUCTURE_SIZE2);
-	}
-}
-
-/**
- * is_smb2_neg_cmd() - is it smb2 negotiation command
- * @work:	smb work containing smb header
- *
- * Return:      true if smb2 negotiation command, otherwise false
- */
-bool is_smb2_neg_cmd(struct ksmbd_work *work)
-{
-	struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
-
-	/* is it SMB2 header ? */
-	if (hdr->ProtocolId != SMB2_PROTO_NUMBER)
-		return false;
-
-	/* make sure it is request not response message */
-	if (hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR)
-		return false;
-
-	if (hdr->Command != SMB2_NEGOTIATE)
-		return false;
-
-	return true;
-}
-
-/**
- * is_smb2_rsp() - is it smb2 response
- * @work:	smb work containing smb response buffer
- *
- * Return:      true if smb2 response, otherwise false
- */
-bool is_smb2_rsp(struct ksmbd_work *work)
-{
-	struct smb2_hdr *hdr = smb2_get_msg(work->response_buf);
-
-	/* is it SMB2 header ? */
-	if (hdr->ProtocolId != SMB2_PROTO_NUMBER)
-		return false;
-
-	/* make sure it is response not request message */
-	if (!(hdr->Flags & SMB2_FLAGS_SERVER_TO_REDIR))
-		return false;
-
-	return true;
-}
-
-/**
- * get_smb2_cmd_val() - get smb command code from smb header
- * @work:	smb work containing smb request buffer
- *
- * Return:      smb2 request command value
- */
-u16 get_smb2_cmd_val(struct ksmbd_work *work)
-{
-	struct smb2_hdr *rcv_hdr;
-
-	if (work->next_smb2_rcv_hdr_off)
-		rcv_hdr = ksmbd_req_buf_next(work);
-	else
-		rcv_hdr = smb2_get_msg(work->request_buf);
-	return le16_to_cpu(rcv_hdr->Command);
-}
-
-/**
- * set_smb2_rsp_status() - set error response code on smb2 header
- * @work:	smb work containing response buffer
- * @err:	error response code
- */
-void set_smb2_rsp_status(struct ksmbd_work *work, __le32 err)
-{
-	struct smb2_hdr *rsp_hdr;
-
-	if (work->next_smb2_rcv_hdr_off)
-		rsp_hdr = ksmbd_resp_buf_next(work);
-	else
-		rsp_hdr = smb2_get_msg(work->response_buf);
-	rsp_hdr->Status = err;
-	smb2_set_err_rsp(work);
-}
-
-/**
- * init_smb2_neg_rsp() - initialize smb2 response for negotiate command
- * @work:	smb work containing smb request buffer
- *
- * smb2 negotiate response is sent in reply of smb1 negotiate command for
- * dialect auto-negotiation.
- */
-int init_smb2_neg_rsp(struct ksmbd_work *work)
-{
-	struct smb2_hdr *rsp_hdr;
-	struct smb2_negotiate_rsp *rsp;
-	struct ksmbd_conn *conn = work->conn;
-
-	*(__be32 *)work->response_buf =
-		cpu_to_be32(conn->vals->header_size);
-
-	rsp_hdr = smb2_get_msg(work->response_buf);
-	memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
-	rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER;
-	rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
-	rsp_hdr->CreditRequest = cpu_to_le16(2);
-	rsp_hdr->Command = SMB2_NEGOTIATE;
-	rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR);
-	rsp_hdr->NextCommand = 0;
-	rsp_hdr->MessageId = 0;
-	rsp_hdr->Id.SyncId.ProcessId = 0;
-	rsp_hdr->Id.SyncId.TreeId = 0;
-	rsp_hdr->SessionId = 0;
-	memset(rsp_hdr->Signature, 0, 16);
-
-	rsp = smb2_get_msg(work->response_buf);
-
-	WARN_ON(ksmbd_conn_good(conn));
-
-	rsp->StructureSize = cpu_to_le16(65);
-	ksmbd_debug(SMB, "conn->dialect 0x%x\n", conn->dialect);
-	rsp->DialectRevision = cpu_to_le16(conn->dialect);
-	/* Not setting conn guid rsp->ServerGUID, as it
-	 * not used by client for identifying connection
-	 */
-	rsp->Capabilities = cpu_to_le32(conn->vals->capabilities);
-	/* Default Max Message Size till SMB2.0, 64K*/
-	rsp->MaxTransactSize = cpu_to_le32(conn->vals->max_trans_size);
-	rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size);
-	rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size);
-
-	rsp->SystemTime = cpu_to_le64(ksmbd_systime());
-	rsp->ServerStartTime = 0;
-
-	rsp->SecurityBufferOffset = cpu_to_le16(128);
-	rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH);
-	ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) +
-		le16_to_cpu(rsp->SecurityBufferOffset));
-	inc_rfc1001_len(work->response_buf,
-			sizeof(struct smb2_negotiate_rsp) -
-			sizeof(struct smb2_hdr) + AUTH_GSS_LENGTH);
-	rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE;
-	if (server_conf.signing == KSMBD_CONFIG_OPT_MANDATORY)
-		rsp->SecurityMode |= SMB2_NEGOTIATE_SIGNING_REQUIRED_LE;
-	conn->use_spnego = true;
-
-	ksmbd_conn_set_need_negotiate(conn);
-	return 0;
-}
-
-/**
- * smb2_set_rsp_credits() - set number of credits in response buffer
- * @work:	smb work containing smb response buffer
- */
-int smb2_set_rsp_credits(struct ksmbd_work *work)
-{
-	struct smb2_hdr *req_hdr = ksmbd_req_buf_next(work);
-	struct smb2_hdr *hdr = ksmbd_resp_buf_next(work);
-	struct ksmbd_conn *conn = work->conn;
-	unsigned short credits_requested, aux_max;
-	unsigned short credit_charge, credits_granted = 0;
-
-	if (work->send_no_response)
-		return 0;
-
-	hdr->CreditCharge = req_hdr->CreditCharge;
-
-	if (conn->total_credits > conn->vals->max_credits) {
-		hdr->CreditRequest = 0;
-		pr_err("Total credits overflow: %d\n", conn->total_credits);
-		return -EINVAL;
-	}
-
-	credit_charge = max_t(unsigned short,
-			      le16_to_cpu(req_hdr->CreditCharge), 1);
-	if (credit_charge > conn->total_credits) {
-		ksmbd_debug(SMB, "Insufficient credits granted, given: %u, granted: %u\n",
-			    credit_charge, conn->total_credits);
-		return -EINVAL;
-	}
-
-	conn->total_credits -= credit_charge;
-	conn->outstanding_credits -= credit_charge;
-	credits_requested = max_t(unsigned short,
-				  le16_to_cpu(req_hdr->CreditRequest), 1);
-
-	/* according to smb2.credits smbtorture, Windows server
-	 * 2016 or later grant up to 8192 credits at once.
-	 *
-	 * TODO: Need to adjuct CreditRequest value according to
-	 * current cpu load
-	 */
-	if (hdr->Command == SMB2_NEGOTIATE)
-		aux_max = 1;
-	else
-		aux_max = conn->vals->max_credits - credit_charge;
-	credits_granted = min_t(unsigned short, credits_requested, aux_max);
-
-	if (conn->vals->max_credits - conn->total_credits < credits_granted)
-		credits_granted = conn->vals->max_credits -
-			conn->total_credits;
-
-	conn->total_credits += credits_granted;
-	work->credits_granted += credits_granted;
-
-	if (!req_hdr->NextCommand) {
-		/* Update CreditRequest in last request */
-		hdr->CreditRequest = cpu_to_le16(work->credits_granted);
-	}
-	ksmbd_debug(SMB,
-		    "credits: requested[%d] granted[%d] total_granted[%d]\n",
-		    credits_requested, credits_granted,
-		    conn->total_credits);
-	return 0;
-}
-
-/**
- * init_chained_smb2_rsp() - initialize smb2 chained response
- * @work:	smb work containing smb response buffer
- */
-static void init_chained_smb2_rsp(struct ksmbd_work *work)
-{
-	struct smb2_hdr *req = ksmbd_req_buf_next(work);
-	struct smb2_hdr *rsp = ksmbd_resp_buf_next(work);
-	struct smb2_hdr *rsp_hdr;
-	struct smb2_hdr *rcv_hdr;
-	int next_hdr_offset = 0;
-	int len, new_len;
-
-	/* Len of this response = updated RFC len - offset of previous cmd
-	 * in the compound rsp
-	 */
-
-	/* Storing the current local FID which may be needed by subsequent
-	 * command in the compound request
-	 */
-	if (req->Command == SMB2_CREATE && rsp->Status == STATUS_SUCCESS) {
-		work->compound_fid = ((struct smb2_create_rsp *)rsp)->VolatileFileId;
-		work->compound_pfid = ((struct smb2_create_rsp *)rsp)->PersistentFileId;
-		work->compound_sid = le64_to_cpu(rsp->SessionId);
-	}
-
-	len = get_rfc1002_len(work->response_buf) - work->next_smb2_rsp_hdr_off;
-	next_hdr_offset = le32_to_cpu(req->NextCommand);
-
-	new_len = ALIGN(len, 8);
-	inc_rfc1001_len(work->response_buf,
-			sizeof(struct smb2_hdr) + new_len - len);
-	rsp->NextCommand = cpu_to_le32(new_len);
-
-	work->next_smb2_rcv_hdr_off += next_hdr_offset;
-	work->next_smb2_rsp_hdr_off += new_len;
-	ksmbd_debug(SMB,
-		    "Compound req new_len = %d rcv off = %d rsp off = %d\n",
-		    new_len, work->next_smb2_rcv_hdr_off,
-		    work->next_smb2_rsp_hdr_off);
-
-	rsp_hdr = ksmbd_resp_buf_next(work);
-	rcv_hdr = ksmbd_req_buf_next(work);
-
-	if (!(rcv_hdr->Flags & SMB2_FLAGS_RELATED_OPERATIONS)) {
-		ksmbd_debug(SMB, "related flag should be set\n");
-		work->compound_fid = KSMBD_NO_FID;
-		work->compound_pfid = KSMBD_NO_FID;
-	}
-	memset((char *)rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
-	rsp_hdr->ProtocolId = SMB2_PROTO_NUMBER;
-	rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
-	rsp_hdr->Command = rcv_hdr->Command;
-
-	/*
-	 * Message is response. We don't grant oplock yet.
-	 */
-	rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR |
-				SMB2_FLAGS_RELATED_OPERATIONS);
-	rsp_hdr->NextCommand = 0;
-	rsp_hdr->MessageId = rcv_hdr->MessageId;
-	rsp_hdr->Id.SyncId.ProcessId = rcv_hdr->Id.SyncId.ProcessId;
-	rsp_hdr->Id.SyncId.TreeId = rcv_hdr->Id.SyncId.TreeId;
-	rsp_hdr->SessionId = rcv_hdr->SessionId;
-	memcpy(rsp_hdr->Signature, rcv_hdr->Signature, 16);
-}
-
-/**
- * is_chained_smb2_message() - check for chained command
- * @work:	smb work containing smb request buffer
- *
- * Return:      true if chained request, otherwise false
- */
-bool is_chained_smb2_message(struct ksmbd_work *work)
-{
-	struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
-	unsigned int len, next_cmd;
-
-	if (hdr->ProtocolId != SMB2_PROTO_NUMBER)
-		return false;
-
-	hdr = ksmbd_req_buf_next(work);
-	next_cmd = le32_to_cpu(hdr->NextCommand);
-	if (next_cmd > 0) {
-		if ((u64)work->next_smb2_rcv_hdr_off + next_cmd +
-			__SMB2_HEADER_STRUCTURE_SIZE >
-		    get_rfc1002_len(work->request_buf)) {
-			pr_err("next command(%u) offset exceeds smb msg size\n",
-			       next_cmd);
-			return false;
-		}
-
-		if ((u64)get_rfc1002_len(work->response_buf) + MAX_CIFS_SMALL_BUFFER_SIZE >
-		    work->response_sz) {
-			pr_err("next response offset exceeds response buffer size\n");
-			return false;
-		}
-
-		ksmbd_debug(SMB, "got SMB2 chained command\n");
-		init_chained_smb2_rsp(work);
-		return true;
-	} else if (work->next_smb2_rcv_hdr_off) {
-		/*
-		 * This is last request in chained command,
-		 * align response to 8 byte
-		 */
-		len = ALIGN(get_rfc1002_len(work->response_buf), 8);
-		len = len - get_rfc1002_len(work->response_buf);
-		if (len) {
-			ksmbd_debug(SMB, "padding len %u\n", len);
-			inc_rfc1001_len(work->response_buf, len);
-			if (work->aux_payload_sz)
-				work->aux_payload_sz += len;
-		}
-	}
-	return false;
-}
-
-/**
- * init_smb2_rsp_hdr() - initialize smb2 response
- * @work:	smb work containing smb request buffer
- *
- * Return:      0
- */
-int init_smb2_rsp_hdr(struct ksmbd_work *work)
-{
-	struct smb2_hdr *rsp_hdr = smb2_get_msg(work->response_buf);
-	struct smb2_hdr *rcv_hdr = smb2_get_msg(work->request_buf);
-	struct ksmbd_conn *conn = work->conn;
-
-	memset(rsp_hdr, 0, sizeof(struct smb2_hdr) + 2);
-	*(__be32 *)work->response_buf =
-		cpu_to_be32(conn->vals->header_size);
-	rsp_hdr->ProtocolId = rcv_hdr->ProtocolId;
-	rsp_hdr->StructureSize = SMB2_HEADER_STRUCTURE_SIZE;
-	rsp_hdr->Command = rcv_hdr->Command;
-
-	/*
-	 * Message is response. We don't grant oplock yet.
-	 */
-	rsp_hdr->Flags = (SMB2_FLAGS_SERVER_TO_REDIR);
-	rsp_hdr->NextCommand = 0;
-	rsp_hdr->MessageId = rcv_hdr->MessageId;
-	rsp_hdr->Id.SyncId.ProcessId = rcv_hdr->Id.SyncId.ProcessId;
-	rsp_hdr->Id.SyncId.TreeId = rcv_hdr->Id.SyncId.TreeId;
-	rsp_hdr->SessionId = rcv_hdr->SessionId;
-	memcpy(rsp_hdr->Signature, rcv_hdr->Signature, 16);
-
-	return 0;
-}
-
-/**
- * smb2_allocate_rsp_buf() - allocate smb2 response buffer
- * @work:	smb work containing smb request buffer
- *
- * Return:      0 on success, otherwise -ENOMEM
- */
-int smb2_allocate_rsp_buf(struct ksmbd_work *work)
-{
-	struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
-	size_t small_sz = MAX_CIFS_SMALL_BUFFER_SIZE;
-	size_t large_sz = small_sz + work->conn->vals->max_trans_size;
-	size_t sz = small_sz;
-	int cmd = le16_to_cpu(hdr->Command);
-
-	if (cmd == SMB2_IOCTL_HE || cmd == SMB2_QUERY_DIRECTORY_HE)
-		sz = large_sz;
-
-	if (cmd == SMB2_QUERY_INFO_HE) {
-		struct smb2_query_info_req *req;
-
-		req = smb2_get_msg(work->request_buf);
-		if ((req->InfoType == SMB2_O_INFO_FILE &&
-		     (req->FileInfoClass == FILE_FULL_EA_INFORMATION ||
-		     req->FileInfoClass == FILE_ALL_INFORMATION)) ||
-		    req->InfoType == SMB2_O_INFO_SECURITY)
-			sz = large_sz;
-	}
-
-	/* allocate large response buf for chained commands */
-	if (le32_to_cpu(hdr->NextCommand) > 0)
-		sz = large_sz;
-
-	work->response_buf = kvmalloc(sz, GFP_KERNEL | __GFP_ZERO);
-	if (!work->response_buf)
-		return -ENOMEM;
-
-	work->response_sz = sz;
-	return 0;
-}
-
-/**
- * smb2_check_user_session() - check for valid session for a user
- * @work:	smb work containing smb request buffer
- *
- * Return:      0 on success, otherwise error
- */
-int smb2_check_user_session(struct ksmbd_work *work)
-{
-	struct smb2_hdr *req_hdr = smb2_get_msg(work->request_buf);
-	struct ksmbd_conn *conn = work->conn;
-	unsigned int cmd = conn->ops->get_cmd_val(work);
-	unsigned long long sess_id;
-
-	work->sess = NULL;
-	/*
-	 * SMB2_ECHO, SMB2_NEGOTIATE, SMB2_SESSION_SETUP command do not
-	 * require a session id, so no need to validate user session's for
-	 * these commands.
-	 */
-	if (cmd == SMB2_ECHO_HE || cmd == SMB2_NEGOTIATE_HE ||
-	    cmd == SMB2_SESSION_SETUP_HE)
-		return 0;
-
-	if (!ksmbd_conn_good(conn))
-		return -EINVAL;
-
-	sess_id = le64_to_cpu(req_hdr->SessionId);
-	/* Check for validity of user session */
-	work->sess = ksmbd_session_lookup_all(conn, sess_id);
-	if (work->sess)
-		return 1;
-	ksmbd_debug(SMB, "Invalid user session, Uid %llu\n", sess_id);
-	return -EINVAL;
-}
-
-static void destroy_previous_session(struct ksmbd_conn *conn,
-				     struct ksmbd_user *user, u64 id)
-{
-	struct ksmbd_session *prev_sess = ksmbd_session_lookup_slowpath(id);
-	struct ksmbd_user *prev_user;
-	struct channel *chann;
-	long index;
-
-	if (!prev_sess)
-		return;
-
-	prev_user = prev_sess->user;
-
-	if (!prev_user ||
-	    strcmp(user->name, prev_user->name) ||
-	    user->passkey_sz != prev_user->passkey_sz ||
-	    memcmp(user->passkey, prev_user->passkey, user->passkey_sz))
-		return;
-
-	prev_sess->state = SMB2_SESSION_EXPIRED;
-	xa_for_each(&prev_sess->ksmbd_chann_list, index, chann)
-		ksmbd_conn_set_exiting(chann->conn);
-}
-
-/**
- * smb2_get_name() - get filename string from on the wire smb format
- * @src:	source buffer
- * @maxlen:	maxlen of source string
- * @local_nls:	nls_table pointer
- *
- * Return:      matching converted filename on success, otherwise error ptr
- */
-static char *
-smb2_get_name(const char *src, const int maxlen, struct nls_table *local_nls)
-{
-	char *name;
-
-	name = smb_strndup_from_utf16(src, maxlen, 1, local_nls);
-	if (IS_ERR(name)) {
-		pr_err("failed to get name %ld\n", PTR_ERR(name));
-		return name;
-	}
-
-	ksmbd_conv_path_to_unix(name);
-	ksmbd_strip_last_slash(name);
-	return name;
-}
-
-int setup_async_work(struct ksmbd_work *work, void (*fn)(void **), void **arg)
-{
-	struct smb2_hdr *rsp_hdr;
-	struct ksmbd_conn *conn = work->conn;
-	int id;
-
-	rsp_hdr = smb2_get_msg(work->response_buf);
-	rsp_hdr->Flags |= SMB2_FLAGS_ASYNC_COMMAND;
-
-	id = ksmbd_acquire_async_msg_id(&conn->async_ida);
-	if (id < 0) {
-		pr_err("Failed to alloc async message id\n");
-		return id;
-	}
-	work->asynchronous = true;
-	work->async_id = id;
-	rsp_hdr->Id.AsyncId = cpu_to_le64(id);
-
-	ksmbd_debug(SMB,
-		    "Send interim Response to inform async request id : %d\n",
-		    work->async_id);
-
-	work->cancel_fn = fn;
-	work->cancel_argv = arg;
-
-	if (list_empty(&work->async_request_entry)) {
-		spin_lock(&conn->request_lock);
-		list_add_tail(&work->async_request_entry, &conn->async_requests);
-		spin_unlock(&conn->request_lock);
-	}
-
-	return 0;
-}
-
-void release_async_work(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-
-	spin_lock(&conn->request_lock);
-	list_del_init(&work->async_request_entry);
-	spin_unlock(&conn->request_lock);
-
-	work->asynchronous = 0;
-	work->cancel_fn = NULL;
-	kfree(work->cancel_argv);
-	work->cancel_argv = NULL;
-	if (work->async_id) {
-		ksmbd_release_id(&conn->async_ida, work->async_id);
-		work->async_id = 0;
-	}
-}
-
-void smb2_send_interim_resp(struct ksmbd_work *work, __le32 status)
-{
-	struct smb2_hdr *rsp_hdr;
-
-	rsp_hdr = smb2_get_msg(work->response_buf);
-	smb2_set_err_rsp(work);
-	rsp_hdr->Status = status;
-
-	work->multiRsp = 1;
-	ksmbd_conn_write(work);
-	rsp_hdr->Status = 0;
-	work->multiRsp = 0;
-}
-
-static __le32 smb2_get_reparse_tag_special_file(umode_t mode)
-{
-	if (S_ISDIR(mode) || S_ISREG(mode))
-		return 0;
-
-	if (S_ISLNK(mode))
-		return IO_REPARSE_TAG_LX_SYMLINK_LE;
-	else if (S_ISFIFO(mode))
-		return IO_REPARSE_TAG_LX_FIFO_LE;
-	else if (S_ISSOCK(mode))
-		return IO_REPARSE_TAG_AF_UNIX_LE;
-	else if (S_ISCHR(mode))
-		return IO_REPARSE_TAG_LX_CHR_LE;
-	else if (S_ISBLK(mode))
-		return IO_REPARSE_TAG_LX_BLK_LE;
-
-	return 0;
-}
-
-/**
- * smb2_get_dos_mode() - get file mode in dos format from unix mode
- * @stat:	kstat containing file mode
- * @attribute:	attribute flags
- *
- * Return:      converted dos mode
- */
-static int smb2_get_dos_mode(struct kstat *stat, int attribute)
-{
-	int attr = 0;
-
-	if (S_ISDIR(stat->mode)) {
-		attr = FILE_ATTRIBUTE_DIRECTORY |
-			(attribute & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM));
-	} else {
-		attr = (attribute & 0x00005137) | FILE_ATTRIBUTE_ARCHIVE;
-		attr &= ~(FILE_ATTRIBUTE_DIRECTORY);
-		if (S_ISREG(stat->mode) && (server_conf.share_fake_fscaps &
-				FILE_SUPPORTS_SPARSE_FILES))
-			attr |= FILE_ATTRIBUTE_SPARSE_FILE;
-
-		if (smb2_get_reparse_tag_special_file(stat->mode))
-			attr |= FILE_ATTRIBUTE_REPARSE_POINT;
-	}
-
-	return attr;
-}
-
-static void build_preauth_ctxt(struct smb2_preauth_neg_context *pneg_ctxt,
-			       __le16 hash_id)
-{
-	pneg_ctxt->ContextType = SMB2_PREAUTH_INTEGRITY_CAPABILITIES;
-	pneg_ctxt->DataLength = cpu_to_le16(38);
-	pneg_ctxt->HashAlgorithmCount = cpu_to_le16(1);
-	pneg_ctxt->Reserved = cpu_to_le32(0);
-	pneg_ctxt->SaltLength = cpu_to_le16(SMB311_SALT_SIZE);
-	get_random_bytes(pneg_ctxt->Salt, SMB311_SALT_SIZE);
-	pneg_ctxt->HashAlgorithms = hash_id;
-}
-
-static void build_encrypt_ctxt(struct smb2_encryption_neg_context *pneg_ctxt,
-			       __le16 cipher_type)
-{
-	pneg_ctxt->ContextType = SMB2_ENCRYPTION_CAPABILITIES;
-	pneg_ctxt->DataLength = cpu_to_le16(4);
-	pneg_ctxt->Reserved = cpu_to_le32(0);
-	pneg_ctxt->CipherCount = cpu_to_le16(1);
-	pneg_ctxt->Ciphers[0] = cipher_type;
-}
-
-static void build_sign_cap_ctxt(struct smb2_signing_capabilities *pneg_ctxt,
-				__le16 sign_algo)
-{
-	pneg_ctxt->ContextType = SMB2_SIGNING_CAPABILITIES;
-	pneg_ctxt->DataLength =
-		cpu_to_le16((sizeof(struct smb2_signing_capabilities) + 2)
-			- sizeof(struct smb2_neg_context));
-	pneg_ctxt->Reserved = cpu_to_le32(0);
-	pneg_ctxt->SigningAlgorithmCount = cpu_to_le16(1);
-	pneg_ctxt->SigningAlgorithms[0] = sign_algo;
-}
-
-static void build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt)
-{
-	pneg_ctxt->ContextType = SMB2_POSIX_EXTENSIONS_AVAILABLE;
-	pneg_ctxt->DataLength = cpu_to_le16(POSIX_CTXT_DATA_LEN);
-	/* SMB2_CREATE_TAG_POSIX is "0x93AD25509CB411E7B42383DE968BCD7C" */
-	pneg_ctxt->Name[0] = 0x93;
-	pneg_ctxt->Name[1] = 0xAD;
-	pneg_ctxt->Name[2] = 0x25;
-	pneg_ctxt->Name[3] = 0x50;
-	pneg_ctxt->Name[4] = 0x9C;
-	pneg_ctxt->Name[5] = 0xB4;
-	pneg_ctxt->Name[6] = 0x11;
-	pneg_ctxt->Name[7] = 0xE7;
-	pneg_ctxt->Name[8] = 0xB4;
-	pneg_ctxt->Name[9] = 0x23;
-	pneg_ctxt->Name[10] = 0x83;
-	pneg_ctxt->Name[11] = 0xDE;
-	pneg_ctxt->Name[12] = 0x96;
-	pneg_ctxt->Name[13] = 0x8B;
-	pneg_ctxt->Name[14] = 0xCD;
-	pneg_ctxt->Name[15] = 0x7C;
-}
-
-static void assemble_neg_contexts(struct ksmbd_conn *conn,
-				  struct smb2_negotiate_rsp *rsp,
-				  void *smb2_buf_len)
-{
-	char * const pneg_ctxt = (char *)rsp +
-			le32_to_cpu(rsp->NegotiateContextOffset);
-	int neg_ctxt_cnt = 1;
-	int ctxt_size;
-
-	ksmbd_debug(SMB,
-		    "assemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n");
-	build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt,
-			   conn->preauth_info->Preauth_HashId);
-	inc_rfc1001_len(smb2_buf_len, AUTH_GSS_PADDING);
-	ctxt_size = sizeof(struct smb2_preauth_neg_context);
-
-	if (conn->cipher_type) {
-		/* Round to 8 byte boundary */
-		ctxt_size = round_up(ctxt_size, 8);
-		ksmbd_debug(SMB,
-			    "assemble SMB2_ENCRYPTION_CAPABILITIES context\n");
-		build_encrypt_ctxt((struct smb2_encryption_neg_context *)
-				   (pneg_ctxt + ctxt_size),
-				   conn->cipher_type);
-		neg_ctxt_cnt++;
-		ctxt_size += sizeof(struct smb2_encryption_neg_context) + 2;
-	}
-
-	/* compression context not yet supported */
-	WARN_ON(conn->compress_algorithm != SMB3_COMPRESS_NONE);
-
-	if (conn->posix_ext_supported) {
-		ctxt_size = round_up(ctxt_size, 8);
-		ksmbd_debug(SMB,
-			    "assemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n");
-		build_posix_ctxt((struct smb2_posix_neg_context *)
-				 (pneg_ctxt + ctxt_size));
-		neg_ctxt_cnt++;
-		ctxt_size += sizeof(struct smb2_posix_neg_context);
-	}
-
-	if (conn->signing_negotiated) {
-		ctxt_size = round_up(ctxt_size, 8);
-		ksmbd_debug(SMB,
-			    "assemble SMB2_SIGNING_CAPABILITIES context\n");
-		build_sign_cap_ctxt((struct smb2_signing_capabilities *)
-				    (pneg_ctxt + ctxt_size),
-				    conn->signing_algorithm);
-		neg_ctxt_cnt++;
-		ctxt_size += sizeof(struct smb2_signing_capabilities) + 2;
-	}
-
-	rsp->NegotiateContextCount = cpu_to_le16(neg_ctxt_cnt);
-	inc_rfc1001_len(smb2_buf_len, ctxt_size);
-}
-
-static __le32 decode_preauth_ctxt(struct ksmbd_conn *conn,
-				  struct smb2_preauth_neg_context *pneg_ctxt,
-				  int len_of_ctxts)
-{
-	/*
-	 * sizeof(smb2_preauth_neg_context) assumes SMB311_SALT_SIZE Salt,
-	 * which may not be present. Only check for used HashAlgorithms[1].
-	 */
-	if (len_of_ctxts < MIN_PREAUTH_CTXT_DATA_LEN)
-		return STATUS_INVALID_PARAMETER;
-
-	if (pneg_ctxt->HashAlgorithms != SMB2_PREAUTH_INTEGRITY_SHA512)
-		return STATUS_NO_PREAUTH_INTEGRITY_HASH_OVERLAP;
-
-	conn->preauth_info->Preauth_HashId = SMB2_PREAUTH_INTEGRITY_SHA512;
-	return STATUS_SUCCESS;
-}
-
-static void decode_encrypt_ctxt(struct ksmbd_conn *conn,
-				struct smb2_encryption_neg_context *pneg_ctxt,
-				int len_of_ctxts)
-{
-	int cph_cnt = le16_to_cpu(pneg_ctxt->CipherCount);
-	int i, cphs_size = cph_cnt * sizeof(__le16);
-
-	conn->cipher_type = 0;
-
-	if (sizeof(struct smb2_encryption_neg_context) + cphs_size >
-	    len_of_ctxts) {
-		pr_err("Invalid cipher count(%d)\n", cph_cnt);
-		return;
-	}
-
-	if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION_OFF)
-		return;
-
-	for (i = 0; i < cph_cnt; i++) {
-		if (pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_GCM ||
-		    pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_CCM ||
-		    pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_CCM ||
-		    pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_GCM) {
-			ksmbd_debug(SMB, "Cipher ID = 0x%x\n",
-				    pneg_ctxt->Ciphers[i]);
-			conn->cipher_type = pneg_ctxt->Ciphers[i];
-			break;
-		}
-	}
-}
-
-/**
- * smb3_encryption_negotiated() - checks if server and client agreed on enabling encryption
- * @conn:	smb connection
- *
- * Return:	true if connection should be encrypted, else false
- */
-bool smb3_encryption_negotiated(struct ksmbd_conn *conn)
-{
-	if (!conn->ops->generate_encryptionkey)
-		return false;
-
-	/*
-	 * SMB 3.0 and 3.0.2 dialects use the SMB2_GLOBAL_CAP_ENCRYPTION flag.
-	 * SMB 3.1.1 uses the cipher_type field.
-	 */
-	return (conn->vals->capabilities & SMB2_GLOBAL_CAP_ENCRYPTION) ||
-	    conn->cipher_type;
-}
-
-static void decode_compress_ctxt(struct ksmbd_conn *conn,
-				 struct smb2_compression_capabilities_context *pneg_ctxt)
-{
-	conn->compress_algorithm = SMB3_COMPRESS_NONE;
-}
-
-static void decode_sign_cap_ctxt(struct ksmbd_conn *conn,
-				 struct smb2_signing_capabilities *pneg_ctxt,
-				 int len_of_ctxts)
-{
-	int sign_algo_cnt = le16_to_cpu(pneg_ctxt->SigningAlgorithmCount);
-	int i, sign_alos_size = sign_algo_cnt * sizeof(__le16);
-
-	conn->signing_negotiated = false;
-
-	if (sizeof(struct smb2_signing_capabilities) + sign_alos_size >
-	    len_of_ctxts) {
-		pr_err("Invalid signing algorithm count(%d)\n", sign_algo_cnt);
-		return;
-	}
-
-	for (i = 0; i < sign_algo_cnt; i++) {
-		if (pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_HMAC_SHA256_LE ||
-		    pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_AES_CMAC_LE) {
-			ksmbd_debug(SMB, "Signing Algorithm ID = 0x%x\n",
-				    pneg_ctxt->SigningAlgorithms[i]);
-			conn->signing_negotiated = true;
-			conn->signing_algorithm =
-				pneg_ctxt->SigningAlgorithms[i];
-			break;
-		}
-	}
-}
-
-static __le32 deassemble_neg_contexts(struct ksmbd_conn *conn,
-				      struct smb2_negotiate_req *req,
-				      int len_of_smb)
-{
-	/* +4 is to account for the RFC1001 len field */
-	struct smb2_neg_context *pctx = (struct smb2_neg_context *)req;
-	int i = 0, len_of_ctxts;
-	int offset = le32_to_cpu(req->NegotiateContextOffset);
-	int neg_ctxt_cnt = le16_to_cpu(req->NegotiateContextCount);
-	__le32 status = STATUS_INVALID_PARAMETER;
-
-	ksmbd_debug(SMB, "decoding %d negotiate contexts\n", neg_ctxt_cnt);
-	if (len_of_smb <= offset) {
-		ksmbd_debug(SMB, "Invalid response: negotiate context offset\n");
-		return status;
-	}
-
-	len_of_ctxts = len_of_smb - offset;
-
-	while (i++ < neg_ctxt_cnt) {
-		int clen;
-
-		/* check that offset is not beyond end of SMB */
-		if (len_of_ctxts == 0)
-			break;
-
-		if (len_of_ctxts < sizeof(struct smb2_neg_context))
-			break;
-
-		pctx = (struct smb2_neg_context *)((char *)pctx + offset);
-		clen = le16_to_cpu(pctx->DataLength);
-		if (clen + sizeof(struct smb2_neg_context) > len_of_ctxts)
-			break;
-
-		if (pctx->ContextType == SMB2_PREAUTH_INTEGRITY_CAPABILITIES) {
-			ksmbd_debug(SMB,
-				    "deassemble SMB2_PREAUTH_INTEGRITY_CAPABILITIES context\n");
-			if (conn->preauth_info->Preauth_HashId)
-				break;
-
-			status = decode_preauth_ctxt(conn,
-						     (struct smb2_preauth_neg_context *)pctx,
-						     len_of_ctxts);
-			if (status != STATUS_SUCCESS)
-				break;
-		} else if (pctx->ContextType == SMB2_ENCRYPTION_CAPABILITIES) {
-			ksmbd_debug(SMB,
-				    "deassemble SMB2_ENCRYPTION_CAPABILITIES context\n");
-			if (conn->cipher_type)
-				break;
-
-			decode_encrypt_ctxt(conn,
-					    (struct smb2_encryption_neg_context *)pctx,
-					    len_of_ctxts);
-		} else if (pctx->ContextType == SMB2_COMPRESSION_CAPABILITIES) {
-			ksmbd_debug(SMB,
-				    "deassemble SMB2_COMPRESSION_CAPABILITIES context\n");
-			if (conn->compress_algorithm)
-				break;
-
-			decode_compress_ctxt(conn,
-					     (struct smb2_compression_capabilities_context *)pctx);
-		} else if (pctx->ContextType == SMB2_NETNAME_NEGOTIATE_CONTEXT_ID) {
-			ksmbd_debug(SMB,
-				    "deassemble SMB2_NETNAME_NEGOTIATE_CONTEXT_ID context\n");
-		} else if (pctx->ContextType == SMB2_POSIX_EXTENSIONS_AVAILABLE) {
-			ksmbd_debug(SMB,
-				    "deassemble SMB2_POSIX_EXTENSIONS_AVAILABLE context\n");
-			conn->posix_ext_supported = true;
-		} else if (pctx->ContextType == SMB2_SIGNING_CAPABILITIES) {
-			ksmbd_debug(SMB,
-				    "deassemble SMB2_SIGNING_CAPABILITIES context\n");
-			decode_sign_cap_ctxt(conn,
-					     (struct smb2_signing_capabilities *)pctx,
-					     len_of_ctxts);
-		}
-
-		/* offsets must be 8 byte aligned */
-		clen = (clen + 7) & ~0x7;
-		offset = clen + sizeof(struct smb2_neg_context);
-		len_of_ctxts -= clen + sizeof(struct smb2_neg_context);
-	}
-	return status;
-}
-
-/**
- * smb2_handle_negotiate() - handler for smb2 negotiate command
- * @work:	smb work containing smb request buffer
- *
- * Return:      0
- */
-int smb2_handle_negotiate(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_negotiate_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_negotiate_rsp *rsp = smb2_get_msg(work->response_buf);
-	int rc = 0;
-	unsigned int smb2_buf_len, smb2_neg_size;
-	__le32 status;
-
-	ksmbd_debug(SMB, "Received negotiate request\n");
-	conn->need_neg = false;
-	if (ksmbd_conn_good(conn)) {
-		pr_err("conn->tcp_status is already in CifsGood State\n");
-		work->send_no_response = 1;
-		return rc;
-	}
-
-	if (req->DialectCount == 0) {
-		pr_err("malformed packet\n");
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		rc = -EINVAL;
-		goto err_out;
-	}
-
-	smb2_buf_len = get_rfc1002_len(work->request_buf);
-	smb2_neg_size = offsetof(struct smb2_negotiate_req, Dialects);
-	if (smb2_neg_size > smb2_buf_len) {
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		rc = -EINVAL;
-		goto err_out;
-	}
-
-	if (conn->dialect == SMB311_PROT_ID) {
-		unsigned int nego_ctxt_off = le32_to_cpu(req->NegotiateContextOffset);
-
-		if (smb2_buf_len < nego_ctxt_off) {
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-			rc = -EINVAL;
-			goto err_out;
-		}
-
-		if (smb2_neg_size > nego_ctxt_off) {
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-			rc = -EINVAL;
-			goto err_out;
-		}
-
-		if (smb2_neg_size + le16_to_cpu(req->DialectCount) * sizeof(__le16) >
-		    nego_ctxt_off) {
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-			rc = -EINVAL;
-			goto err_out;
-		}
-	} else {
-		if (smb2_neg_size + le16_to_cpu(req->DialectCount) * sizeof(__le16) >
-		    smb2_buf_len) {
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-			rc = -EINVAL;
-			goto err_out;
-		}
-	}
-
-	conn->cli_cap = le32_to_cpu(req->Capabilities);
-	switch (conn->dialect) {
-	case SMB311_PROT_ID:
-		conn->preauth_info =
-			kzalloc(sizeof(struct preauth_integrity_info),
-				GFP_KERNEL);
-		if (!conn->preauth_info) {
-			rc = -ENOMEM;
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-			goto err_out;
-		}
-
-		status = deassemble_neg_contexts(conn, req,
-						 get_rfc1002_len(work->request_buf));
-		if (status != STATUS_SUCCESS) {
-			pr_err("deassemble_neg_contexts error(0x%x)\n",
-			       status);
-			rsp->hdr.Status = status;
-			rc = -EINVAL;
-			kfree(conn->preauth_info);
-			conn->preauth_info = NULL;
-			goto err_out;
-		}
-
-		rc = init_smb3_11_server(conn);
-		if (rc < 0) {
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-			kfree(conn->preauth_info);
-			conn->preauth_info = NULL;
-			goto err_out;
-		}
-
-		ksmbd_gen_preauth_integrity_hash(conn,
-						 work->request_buf,
-						 conn->preauth_info->Preauth_HashValue);
-		rsp->NegotiateContextOffset =
-				cpu_to_le32(OFFSET_OF_NEG_CONTEXT);
-		assemble_neg_contexts(conn, rsp, work->response_buf);
-		break;
-	case SMB302_PROT_ID:
-		init_smb3_02_server(conn);
-		break;
-	case SMB30_PROT_ID:
-		init_smb3_0_server(conn);
-		break;
-	case SMB21_PROT_ID:
-		init_smb2_1_server(conn);
-		break;
-	case SMB2X_PROT_ID:
-	case BAD_PROT_ID:
-	default:
-		ksmbd_debug(SMB, "Server dialect :0x%x not supported\n",
-			    conn->dialect);
-		rsp->hdr.Status = STATUS_NOT_SUPPORTED;
-		rc = -EINVAL;
-		goto err_out;
-	}
-	rsp->Capabilities = cpu_to_le32(conn->vals->capabilities);
-
-	/* For stats */
-	conn->connection_type = conn->dialect;
-
-	rsp->MaxTransactSize = cpu_to_le32(conn->vals->max_trans_size);
-	rsp->MaxReadSize = cpu_to_le32(conn->vals->max_read_size);
-	rsp->MaxWriteSize = cpu_to_le32(conn->vals->max_write_size);
-
-	memcpy(conn->ClientGUID, req->ClientGUID,
-			SMB2_CLIENT_GUID_SIZE);
-	conn->cli_sec_mode = le16_to_cpu(req->SecurityMode);
-
-	rsp->StructureSize = cpu_to_le16(65);
-	rsp->DialectRevision = cpu_to_le16(conn->dialect);
-	/* Not setting conn guid rsp->ServerGUID, as it
-	 * not used by client for identifying server
-	 */
-	memset(rsp->ServerGUID, 0, SMB2_CLIENT_GUID_SIZE);
-
-	rsp->SystemTime = cpu_to_le64(ksmbd_systime());
-	rsp->ServerStartTime = 0;
-	ksmbd_debug(SMB, "negotiate context offset %d, count %d\n",
-		    le32_to_cpu(rsp->NegotiateContextOffset),
-		    le16_to_cpu(rsp->NegotiateContextCount));
-
-	rsp->SecurityBufferOffset = cpu_to_le16(128);
-	rsp->SecurityBufferLength = cpu_to_le16(AUTH_GSS_LENGTH);
-	ksmbd_copy_gss_neg_header((char *)(&rsp->hdr) +
-				  le16_to_cpu(rsp->SecurityBufferOffset));
-	inc_rfc1001_len(work->response_buf, sizeof(struct smb2_negotiate_rsp) -
-			sizeof(struct smb2_hdr) + AUTH_GSS_LENGTH);
-	rsp->SecurityMode = SMB2_NEGOTIATE_SIGNING_ENABLED_LE;
-	conn->use_spnego = true;
-
-	if ((server_conf.signing == KSMBD_CONFIG_OPT_AUTO ||
-	     server_conf.signing == KSMBD_CONFIG_OPT_DISABLED) &&
-	    req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED_LE)
-		conn->sign = true;
-	else if (server_conf.signing == KSMBD_CONFIG_OPT_MANDATORY) {
-		server_conf.enforced_signing = true;
-		rsp->SecurityMode |= SMB2_NEGOTIATE_SIGNING_REQUIRED_LE;
-		conn->sign = true;
-	}
-
-	conn->srv_sec_mode = le16_to_cpu(rsp->SecurityMode);
-	ksmbd_conn_set_need_negotiate(conn);
-
-err_out:
-	if (rc < 0)
-		smb2_set_err_rsp(work);
-
-	return rc;
-}
-
-static int alloc_preauth_hash(struct ksmbd_session *sess,
-			      struct ksmbd_conn *conn)
-{
-	if (sess->Preauth_HashValue)
-		return 0;
-
-	sess->Preauth_HashValue = kmemdup(conn->preauth_info->Preauth_HashValue,
-					  PREAUTH_HASHVALUE_SIZE, GFP_KERNEL);
-	if (!sess->Preauth_HashValue)
-		return -ENOMEM;
-
-	return 0;
-}
-
-static int generate_preauth_hash(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_session *sess = work->sess;
-	u8 *preauth_hash;
-
-	if (conn->dialect != SMB311_PROT_ID)
-		return 0;
-
-	if (conn->binding) {
-		struct preauth_session *preauth_sess;
-
-		preauth_sess = ksmbd_preauth_session_lookup(conn, sess->id);
-		if (!preauth_sess) {
-			preauth_sess = ksmbd_preauth_session_alloc(conn, sess->id);
-			if (!preauth_sess)
-				return -ENOMEM;
-		}
-
-		preauth_hash = preauth_sess->Preauth_HashValue;
-	} else {
-		if (!sess->Preauth_HashValue)
-			if (alloc_preauth_hash(sess, conn))
-				return -ENOMEM;
-		preauth_hash = sess->Preauth_HashValue;
-	}
-
-	ksmbd_gen_preauth_integrity_hash(conn, work->request_buf, preauth_hash);
-	return 0;
-}
-
-static int decode_negotiation_token(struct ksmbd_conn *conn,
-				    struct negotiate_message *negblob,
-				    size_t sz)
-{
-	if (!conn->use_spnego)
-		return -EINVAL;
-
-	if (ksmbd_decode_negTokenInit((char *)negblob, sz, conn)) {
-		if (ksmbd_decode_negTokenTarg((char *)negblob, sz, conn)) {
-			conn->auth_mechs |= KSMBD_AUTH_NTLMSSP;
-			conn->preferred_auth_mech = KSMBD_AUTH_NTLMSSP;
-			conn->use_spnego = false;
-		}
-	}
-	return 0;
-}
-
-static int ntlm_negotiate(struct ksmbd_work *work,
-			  struct negotiate_message *negblob,
-			  size_t negblob_len)
-{
-	struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct challenge_message *chgblob;
-	unsigned char *spnego_blob = NULL;
-	u16 spnego_blob_len;
-	char *neg_blob;
-	int sz, rc;
-
-	ksmbd_debug(SMB, "negotiate phase\n");
-	rc = ksmbd_decode_ntlmssp_neg_blob(negblob, negblob_len, work->conn);
-	if (rc)
-		return rc;
-
-	sz = le16_to_cpu(rsp->SecurityBufferOffset);
-	chgblob =
-		(struct challenge_message *)((char *)&rsp->hdr.ProtocolId + sz);
-	memset(chgblob, 0, sizeof(struct challenge_message));
-
-	if (!work->conn->use_spnego) {
-		sz = ksmbd_build_ntlmssp_challenge_blob(chgblob, work->conn);
-		if (sz < 0)
-			return -ENOMEM;
-
-		rsp->SecurityBufferLength = cpu_to_le16(sz);
-		return 0;
-	}
-
-	sz = sizeof(struct challenge_message);
-	sz += (strlen(ksmbd_netbios_name()) * 2 + 1 + 4) * 6;
-
-	neg_blob = kzalloc(sz, GFP_KERNEL);
-	if (!neg_blob)
-		return -ENOMEM;
-
-	chgblob = (struct challenge_message *)neg_blob;
-	sz = ksmbd_build_ntlmssp_challenge_blob(chgblob, work->conn);
-	if (sz < 0) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = build_spnego_ntlmssp_neg_blob(&spnego_blob, &spnego_blob_len,
-					   neg_blob, sz);
-	if (rc) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	sz = le16_to_cpu(rsp->SecurityBufferOffset);
-	memcpy((char *)&rsp->hdr.ProtocolId + sz, spnego_blob, spnego_blob_len);
-	rsp->SecurityBufferLength = cpu_to_le16(spnego_blob_len);
-
-out:
-	kfree(spnego_blob);
-	kfree(neg_blob);
-	return rc;
-}
-
-static struct authenticate_message *user_authblob(struct ksmbd_conn *conn,
-						  struct smb2_sess_setup_req *req)
-{
-	int sz;
-
-	if (conn->use_spnego && conn->mechToken)
-		return (struct authenticate_message *)conn->mechToken;
-
-	sz = le16_to_cpu(req->SecurityBufferOffset);
-	return (struct authenticate_message *)((char *)&req->hdr.ProtocolId
-					       + sz);
-}
-
-static struct ksmbd_user *session_user(struct ksmbd_conn *conn,
-				       struct smb2_sess_setup_req *req)
-{
-	struct authenticate_message *authblob;
-	struct ksmbd_user *user;
-	char *name;
-	unsigned int name_off, name_len, secbuf_len;
-
-	secbuf_len = le16_to_cpu(req->SecurityBufferLength);
-	if (secbuf_len < sizeof(struct authenticate_message)) {
-		ksmbd_debug(SMB, "blob len %d too small\n", secbuf_len);
-		return NULL;
-	}
-	authblob = user_authblob(conn, req);
-	name_off = le32_to_cpu(authblob->UserName.BufferOffset);
-	name_len = le16_to_cpu(authblob->UserName.Length);
-
-	if (secbuf_len < (u64)name_off + name_len)
-		return NULL;
-
-	name = smb_strndup_from_utf16((const char *)authblob + name_off,
-				      name_len,
-				      true,
-				      conn->local_nls);
-	if (IS_ERR(name)) {
-		pr_err("cannot allocate memory\n");
-		return NULL;
-	}
-
-	ksmbd_debug(SMB, "session setup request for user %s\n", name);
-	user = ksmbd_login_user(name);
-	kfree(name);
-	return user;
-}
-
-static int ntlm_authenticate(struct ksmbd_work *work)
-{
-	struct smb2_sess_setup_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_session *sess = work->sess;
-	struct channel *chann = NULL;
-	struct ksmbd_user *user;
-	u64 prev_id;
-	int sz, rc;
-
-	ksmbd_debug(SMB, "authenticate phase\n");
-	if (conn->use_spnego) {
-		unsigned char *spnego_blob;
-		u16 spnego_blob_len;
-
-		rc = build_spnego_ntlmssp_auth_blob(&spnego_blob,
-						    &spnego_blob_len,
-						    0);
-		if (rc)
-			return -ENOMEM;
-
-		sz = le16_to_cpu(rsp->SecurityBufferOffset);
-		memcpy((char *)&rsp->hdr.ProtocolId + sz, spnego_blob, spnego_blob_len);
-		rsp->SecurityBufferLength = cpu_to_le16(spnego_blob_len);
-		kfree(spnego_blob);
-		inc_rfc1001_len(work->response_buf, spnego_blob_len - 1);
-	}
-
-	user = session_user(conn, req);
-	if (!user) {
-		ksmbd_debug(SMB, "Unknown user name or an error\n");
-		return -EPERM;
-	}
-
-	/* Check for previous session */
-	prev_id = le64_to_cpu(req->PreviousSessionId);
-	if (prev_id && prev_id != sess->id)
-		destroy_previous_session(conn, user, prev_id);
-
-	if (sess->state == SMB2_SESSION_VALID) {
-		/*
-		 * Reuse session if anonymous try to connect
-		 * on reauthetication.
-		 */
-		if (conn->binding == false && ksmbd_anonymous_user(user)) {
-			ksmbd_free_user(user);
-			return 0;
-		}
-
-		if (!ksmbd_compare_user(sess->user, user)) {
-			ksmbd_free_user(user);
-			return -EPERM;
-		}
-		ksmbd_free_user(user);
-	} else {
-		sess->user = user;
-	}
-
-	if (conn->binding == false && user_guest(sess->user)) {
-		rsp->SessionFlags = SMB2_SESSION_FLAG_IS_GUEST_LE;
-	} else {
-		struct authenticate_message *authblob;
-
-		authblob = user_authblob(conn, req);
-		sz = le16_to_cpu(req->SecurityBufferLength);
-		rc = ksmbd_decode_ntlmssp_auth_blob(authblob, sz, conn, sess);
-		if (rc) {
-			set_user_flag(sess->user, KSMBD_USER_FLAG_BAD_PASSWORD);
-			ksmbd_debug(SMB, "authentication failed\n");
-			return -EPERM;
-		}
-	}
-
-	/*
-	 * If session state is SMB2_SESSION_VALID, We can assume
-	 * that it is reauthentication. And the user/password
-	 * has been verified, so return it here.
-	 */
-	if (sess->state == SMB2_SESSION_VALID) {
-		if (conn->binding)
-			goto binding_session;
-		return 0;
-	}
-
-	if ((rsp->SessionFlags != SMB2_SESSION_FLAG_IS_GUEST_LE &&
-	     (conn->sign || server_conf.enforced_signing)) ||
-	    (req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED))
-		sess->sign = true;
-
-	if (smb3_encryption_negotiated(conn) &&
-			!(req->Flags & SMB2_SESSION_REQ_FLAG_BINDING)) {
-		rc = conn->ops->generate_encryptionkey(conn, sess);
-		if (rc) {
-			ksmbd_debug(SMB,
-					"SMB3 encryption key generation failed\n");
-			return -EINVAL;
-		}
-		sess->enc = true;
-		if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION)
-			rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE;
-		/*
-		 * signing is disable if encryption is enable
-		 * on this session
-		 */
-		sess->sign = false;
-	}
-
-binding_session:
-	if (conn->dialect >= SMB30_PROT_ID) {
-		chann = lookup_chann_list(sess, conn);
-		if (!chann) {
-			chann = kmalloc(sizeof(struct channel), GFP_KERNEL);
-			if (!chann)
-				return -ENOMEM;
-
-			chann->conn = conn;
-			xa_store(&sess->ksmbd_chann_list, (long)conn, chann, GFP_KERNEL);
-		}
-	}
-
-	if (conn->ops->generate_signingkey) {
-		rc = conn->ops->generate_signingkey(sess, conn);
-		if (rc) {
-			ksmbd_debug(SMB, "SMB3 signing key generation failed\n");
-			return -EINVAL;
-		}
-	}
-
-	if (!ksmbd_conn_lookup_dialect(conn)) {
-		pr_err("fail to verify the dialect\n");
-		return -ENOENT;
-	}
-	return 0;
-}
-
-#ifdef CONFIG_SMB_SERVER_KERBEROS5
-static int krb5_authenticate(struct ksmbd_work *work)
-{
-	struct smb2_sess_setup_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_session *sess = work->sess;
-	char *in_blob, *out_blob;
-	struct channel *chann = NULL;
-	u64 prev_sess_id;
-	int in_len, out_len;
-	int retval;
-
-	in_blob = (char *)&req->hdr.ProtocolId +
-		le16_to_cpu(req->SecurityBufferOffset);
-	in_len = le16_to_cpu(req->SecurityBufferLength);
-	out_blob = (char *)&rsp->hdr.ProtocolId +
-		le16_to_cpu(rsp->SecurityBufferOffset);
-	out_len = work->response_sz -
-		(le16_to_cpu(rsp->SecurityBufferOffset) + 4);
-
-	/* Check previous session */
-	prev_sess_id = le64_to_cpu(req->PreviousSessionId);
-	if (prev_sess_id && prev_sess_id != sess->id)
-		destroy_previous_session(conn, sess->user, prev_sess_id);
-
-	if (sess->state == SMB2_SESSION_VALID)
-		ksmbd_free_user(sess->user);
-
-	retval = ksmbd_krb5_authenticate(sess, in_blob, in_len,
-					 out_blob, &out_len);
-	if (retval) {
-		ksmbd_debug(SMB, "krb5 authentication failed\n");
-		return -EINVAL;
-	}
-	rsp->SecurityBufferLength = cpu_to_le16(out_len);
-	inc_rfc1001_len(work->response_buf, out_len - 1);
-
-	if ((conn->sign || server_conf.enforced_signing) ||
-	    (req->SecurityMode & SMB2_NEGOTIATE_SIGNING_REQUIRED))
-		sess->sign = true;
-
-	if (smb3_encryption_negotiated(conn)) {
-		retval = conn->ops->generate_encryptionkey(conn, sess);
-		if (retval) {
-			ksmbd_debug(SMB,
-				    "SMB3 encryption key generation failed\n");
-			return -EINVAL;
-		}
-		sess->enc = true;
-		if (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB2_ENCRYPTION)
-			rsp->SessionFlags = SMB2_SESSION_FLAG_ENCRYPT_DATA_LE;
-		sess->sign = false;
-	}
-
-	if (conn->dialect >= SMB30_PROT_ID) {
-		chann = lookup_chann_list(sess, conn);
-		if (!chann) {
-			chann = kmalloc(sizeof(struct channel), GFP_KERNEL);
-			if (!chann)
-				return -ENOMEM;
-
-			chann->conn = conn;
-			xa_store(&sess->ksmbd_chann_list, (long)conn, chann, GFP_KERNEL);
-		}
-	}
-
-	if (conn->ops->generate_signingkey) {
-		retval = conn->ops->generate_signingkey(sess, conn);
-		if (retval) {
-			ksmbd_debug(SMB, "SMB3 signing key generation failed\n");
-			return -EINVAL;
-		}
-	}
-
-	if (!ksmbd_conn_lookup_dialect(conn)) {
-		pr_err("fail to verify the dialect\n");
-		return -ENOENT;
-	}
-	return 0;
-}
-#else
-static int krb5_authenticate(struct ksmbd_work *work)
-{
-	return -EOPNOTSUPP;
-}
-#endif
-
-int smb2_sess_setup(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_sess_setup_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_sess_setup_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_session *sess;
-	struct negotiate_message *negblob;
-	unsigned int negblob_len, negblob_off;
-	int rc = 0;
-
-	ksmbd_debug(SMB, "Received request for session setup\n");
-
-	rsp->StructureSize = cpu_to_le16(9);
-	rsp->SessionFlags = 0;
-	rsp->SecurityBufferOffset = cpu_to_le16(72);
-	rsp->SecurityBufferLength = 0;
-	inc_rfc1001_len(work->response_buf, 9);
-
-	ksmbd_conn_lock(conn);
-	if (!req->hdr.SessionId) {
-		sess = ksmbd_smb2_session_create();
-		if (!sess) {
-			rc = -ENOMEM;
-			goto out_err;
-		}
-		rsp->hdr.SessionId = cpu_to_le64(sess->id);
-		rc = ksmbd_session_register(conn, sess);
-		if (rc)
-			goto out_err;
-	} else if (conn->dialect >= SMB30_PROT_ID &&
-		   (server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL) &&
-		   req->Flags & SMB2_SESSION_REQ_FLAG_BINDING) {
-		u64 sess_id = le64_to_cpu(req->hdr.SessionId);
-
-		sess = ksmbd_session_lookup_slowpath(sess_id);
-		if (!sess) {
-			rc = -ENOENT;
-			goto out_err;
-		}
-
-		if (conn->dialect != sess->dialect) {
-			rc = -EINVAL;
-			goto out_err;
-		}
-
-		if (!(req->hdr.Flags & SMB2_FLAGS_SIGNED)) {
-			rc = -EINVAL;
-			goto out_err;
-		}
-
-		if (strncmp(conn->ClientGUID, sess->ClientGUID,
-			    SMB2_CLIENT_GUID_SIZE)) {
-			rc = -ENOENT;
-			goto out_err;
-		}
-
-		if (sess->state == SMB2_SESSION_IN_PROGRESS) {
-			rc = -EACCES;
-			goto out_err;
-		}
-
-		if (sess->state == SMB2_SESSION_EXPIRED) {
-			rc = -EFAULT;
-			goto out_err;
-		}
-
-		if (ksmbd_conn_need_reconnect(conn)) {
-			rc = -EFAULT;
-			sess = NULL;
-			goto out_err;
-		}
-
-		if (ksmbd_session_lookup(conn, sess_id)) {
-			rc = -EACCES;
-			goto out_err;
-		}
-
-		if (user_guest(sess->user)) {
-			rc = -EOPNOTSUPP;
-			goto out_err;
-		}
-
-		conn->binding = true;
-	} else if ((conn->dialect < SMB30_PROT_ID ||
-		    server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL) &&
-		   (req->Flags & SMB2_SESSION_REQ_FLAG_BINDING)) {
-		sess = NULL;
-		rc = -EACCES;
-		goto out_err;
-	} else {
-		sess = ksmbd_session_lookup(conn,
-					    le64_to_cpu(req->hdr.SessionId));
-		if (!sess) {
-			rc = -ENOENT;
-			goto out_err;
-		}
-
-		if (sess->state == SMB2_SESSION_EXPIRED) {
-			rc = -EFAULT;
-			goto out_err;
-		}
-
-		if (ksmbd_conn_need_reconnect(conn)) {
-			rc = -EFAULT;
-			sess = NULL;
-			goto out_err;
-		}
-	}
-	work->sess = sess;
-
-	negblob_off = le16_to_cpu(req->SecurityBufferOffset);
-	negblob_len = le16_to_cpu(req->SecurityBufferLength);
-	if (negblob_off < offsetof(struct smb2_sess_setup_req, Buffer) ||
-	    negblob_len < offsetof(struct negotiate_message, NegotiateFlags)) {
-		rc = -EINVAL;
-		goto out_err;
-	}
-
-	negblob = (struct negotiate_message *)((char *)&req->hdr.ProtocolId +
-			negblob_off);
-
-	if (decode_negotiation_token(conn, negblob, negblob_len) == 0) {
-		if (conn->mechToken)
-			negblob = (struct negotiate_message *)conn->mechToken;
-	}
-
-	if (server_conf.auth_mechs & conn->auth_mechs) {
-		rc = generate_preauth_hash(work);
-		if (rc)
-			goto out_err;
-
-		if (conn->preferred_auth_mech &
-				(KSMBD_AUTH_KRB5 | KSMBD_AUTH_MSKRB5)) {
-			rc = krb5_authenticate(work);
-			if (rc) {
-				rc = -EINVAL;
-				goto out_err;
-			}
-
-			if (!ksmbd_conn_need_reconnect(conn)) {
-				ksmbd_conn_set_good(conn);
-				sess->state = SMB2_SESSION_VALID;
-			}
-			kfree(sess->Preauth_HashValue);
-			sess->Preauth_HashValue = NULL;
-		} else if (conn->preferred_auth_mech == KSMBD_AUTH_NTLMSSP) {
-			if (negblob->MessageType == NtLmNegotiate) {
-				rc = ntlm_negotiate(work, negblob, negblob_len);
-				if (rc)
-					goto out_err;
-				rsp->hdr.Status =
-					STATUS_MORE_PROCESSING_REQUIRED;
-				/*
-				 * Note: here total size -1 is done as an
-				 * adjustment for 0 size blob
-				 */
-				inc_rfc1001_len(work->response_buf,
-						le16_to_cpu(rsp->SecurityBufferLength) - 1);
-
-			} else if (negblob->MessageType == NtLmAuthenticate) {
-				rc = ntlm_authenticate(work);
-				if (rc)
-					goto out_err;
-
-				if (!ksmbd_conn_need_reconnect(conn)) {
-					ksmbd_conn_set_good(conn);
-					sess->state = SMB2_SESSION_VALID;
-				}
-				if (conn->binding) {
-					struct preauth_session *preauth_sess;
-
-					preauth_sess =
-						ksmbd_preauth_session_lookup(conn, sess->id);
-					if (preauth_sess) {
-						list_del(&preauth_sess->preauth_entry);
-						kfree(preauth_sess);
-					}
-				}
-				kfree(sess->Preauth_HashValue);
-				sess->Preauth_HashValue = NULL;
-			} else {
-				pr_info_ratelimited("Unknown NTLMSSP message type : 0x%x\n",
-						le32_to_cpu(negblob->MessageType));
-				rc = -EINVAL;
-			}
-		} else {
-			/* TODO: need one more negotiation */
-			pr_err("Not support the preferred authentication\n");
-			rc = -EINVAL;
-		}
-	} else {
-		pr_err("Not support authentication\n");
-		rc = -EINVAL;
-	}
-
-out_err:
-	if (rc == -EINVAL)
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-	else if (rc == -ENOENT)
-		rsp->hdr.Status = STATUS_USER_SESSION_DELETED;
-	else if (rc == -EACCES)
-		rsp->hdr.Status = STATUS_REQUEST_NOT_ACCEPTED;
-	else if (rc == -EFAULT)
-		rsp->hdr.Status = STATUS_NETWORK_SESSION_EXPIRED;
-	else if (rc == -ENOMEM)
-		rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES;
-	else if (rc == -EOPNOTSUPP)
-		rsp->hdr.Status = STATUS_NOT_SUPPORTED;
-	else if (rc)
-		rsp->hdr.Status = STATUS_LOGON_FAILURE;
-
-	if (conn->use_spnego && conn->mechToken) {
-		kfree(conn->mechToken);
-		conn->mechToken = NULL;
-	}
-
-	if (rc < 0) {
-		/*
-		 * SecurityBufferOffset should be set to zero
-		 * in session setup error response.
-		 */
-		rsp->SecurityBufferOffset = 0;
-
-		if (sess) {
-			bool try_delay = false;
-
-			/*
-			 * To avoid dictionary attacks (repeated session setups rapidly sent) to
-			 * connect to server, ksmbd make a delay of a 5 seconds on session setup
-			 * failure to make it harder to send enough random connection requests
-			 * to break into a server.
-			 */
-			if (sess->user && sess->user->flags & KSMBD_USER_FLAG_DELAY_SESSION)
-				try_delay = true;
-
-			sess->last_active = jiffies;
-			sess->state = SMB2_SESSION_EXPIRED;
-			if (try_delay) {
-				ksmbd_conn_set_need_reconnect(conn);
-				ssleep(5);
-				ksmbd_conn_set_need_negotiate(conn);
-			}
-		}
-	}
-
-	ksmbd_conn_unlock(conn);
-	return rc;
-}
-
-/**
- * smb2_tree_connect() - handler for smb2 tree connect command
- * @work:	smb work containing smb request buffer
- *
- * Return:      0 on success, otherwise error
- */
-int smb2_tree_connect(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_tree_connect_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_tree_connect_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_session *sess = work->sess;
-	char *treename = NULL, *name = NULL;
-	struct ksmbd_tree_conn_status status;
-	struct ksmbd_share_config *share;
-	int rc = -EINVAL;
-
-	treename = smb_strndup_from_utf16(req->Buffer,
-					  le16_to_cpu(req->PathLength), true,
-					  conn->local_nls);
-	if (IS_ERR(treename)) {
-		pr_err("treename is NULL\n");
-		status.ret = KSMBD_TREE_CONN_STATUS_ERROR;
-		goto out_err1;
-	}
-
-	name = ksmbd_extract_sharename(conn->um, treename);
-	if (IS_ERR(name)) {
-		status.ret = KSMBD_TREE_CONN_STATUS_ERROR;
-		goto out_err1;
-	}
-
-	ksmbd_debug(SMB, "tree connect request for tree %s treename %s\n",
-		    name, treename);
-
-	status = ksmbd_tree_conn_connect(conn, sess, name);
-	if (status.ret == KSMBD_TREE_CONN_STATUS_OK)
-		rsp->hdr.Id.SyncId.TreeId = cpu_to_le32(status.tree_conn->id);
-	else
-		goto out_err1;
-
-	share = status.tree_conn->share_conf;
-	if (test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) {
-		ksmbd_debug(SMB, "IPC share path request\n");
-		rsp->ShareType = SMB2_SHARE_TYPE_PIPE;
-		rsp->MaximalAccess = FILE_READ_DATA_LE | FILE_READ_EA_LE |
-			FILE_EXECUTE_LE | FILE_READ_ATTRIBUTES_LE |
-			FILE_DELETE_LE | FILE_READ_CONTROL_LE |
-			FILE_WRITE_DAC_LE | FILE_WRITE_OWNER_LE |
-			FILE_SYNCHRONIZE_LE;
-	} else {
-		rsp->ShareType = SMB2_SHARE_TYPE_DISK;
-		rsp->MaximalAccess = FILE_READ_DATA_LE | FILE_READ_EA_LE |
-			FILE_EXECUTE_LE | FILE_READ_ATTRIBUTES_LE;
-		if (test_tree_conn_flag(status.tree_conn,
-					KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-			rsp->MaximalAccess |= FILE_WRITE_DATA_LE |
-				FILE_APPEND_DATA_LE | FILE_WRITE_EA_LE |
-				FILE_DELETE_LE | FILE_WRITE_ATTRIBUTES_LE |
-				FILE_DELETE_CHILD_LE | FILE_READ_CONTROL_LE |
-				FILE_WRITE_DAC_LE | FILE_WRITE_OWNER_LE |
-				FILE_SYNCHRONIZE_LE;
-		}
-	}
-
-	status.tree_conn->maximal_access = le32_to_cpu(rsp->MaximalAccess);
-	if (conn->posix_ext_supported)
-		status.tree_conn->posix_extensions = true;
-
-	rsp->StructureSize = cpu_to_le16(16);
-	inc_rfc1001_len(work->response_buf, 16);
-out_err1:
-	rsp->Capabilities = 0;
-	rsp->Reserved = 0;
-	/* default manual caching */
-	rsp->ShareFlags = SMB2_SHAREFLAG_MANUAL_CACHING;
-
-	if (!IS_ERR(treename))
-		kfree(treename);
-	if (!IS_ERR(name))
-		kfree(name);
-
-	switch (status.ret) {
-	case KSMBD_TREE_CONN_STATUS_OK:
-		rsp->hdr.Status = STATUS_SUCCESS;
-		rc = 0;
-		break;
-	case -ESTALE:
-	case -ENOENT:
-	case KSMBD_TREE_CONN_STATUS_NO_SHARE:
-		rsp->hdr.Status = STATUS_BAD_NETWORK_NAME;
-		break;
-	case -ENOMEM:
-	case KSMBD_TREE_CONN_STATUS_NOMEM:
-		rsp->hdr.Status = STATUS_NO_MEMORY;
-		break;
-	case KSMBD_TREE_CONN_STATUS_ERROR:
-	case KSMBD_TREE_CONN_STATUS_TOO_MANY_CONNS:
-	case KSMBD_TREE_CONN_STATUS_TOO_MANY_SESSIONS:
-		rsp->hdr.Status = STATUS_ACCESS_DENIED;
-		break;
-	case -EINVAL:
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		break;
-	default:
-		rsp->hdr.Status = STATUS_ACCESS_DENIED;
-	}
-
-	if (status.ret != KSMBD_TREE_CONN_STATUS_OK)
-		smb2_set_err_rsp(work);
-
-	return rc;
-}
-
-/**
- * smb2_create_open_flags() - convert smb open flags to unix open flags
- * @file_present:	is file already present
- * @access:		file access flags
- * @disposition:	file disposition flags
- * @may_flags:		set with MAY_ flags
- *
- * Return:      file open flags
- */
-static int smb2_create_open_flags(bool file_present, __le32 access,
-				  __le32 disposition,
-				  int *may_flags)
-{
-	int oflags = O_NONBLOCK | O_LARGEFILE;
-
-	if (access & FILE_READ_DESIRED_ACCESS_LE &&
-	    access & FILE_WRITE_DESIRE_ACCESS_LE) {
-		oflags |= O_RDWR;
-		*may_flags = MAY_OPEN | MAY_READ | MAY_WRITE;
-	} else if (access & FILE_WRITE_DESIRE_ACCESS_LE) {
-		oflags |= O_WRONLY;
-		*may_flags = MAY_OPEN | MAY_WRITE;
-	} else {
-		oflags |= O_RDONLY;
-		*may_flags = MAY_OPEN | MAY_READ;
-	}
-
-	if (access == FILE_READ_ATTRIBUTES_LE)
-		oflags |= O_PATH;
-
-	if (file_present) {
-		switch (disposition & FILE_CREATE_MASK_LE) {
-		case FILE_OPEN_LE:
-		case FILE_CREATE_LE:
-			break;
-		case FILE_SUPERSEDE_LE:
-		case FILE_OVERWRITE_LE:
-		case FILE_OVERWRITE_IF_LE:
-			oflags |= O_TRUNC;
-			break;
-		default:
-			break;
-		}
-	} else {
-		switch (disposition & FILE_CREATE_MASK_LE) {
-		case FILE_SUPERSEDE_LE:
-		case FILE_CREATE_LE:
-		case FILE_OPEN_IF_LE:
-		case FILE_OVERWRITE_IF_LE:
-			oflags |= O_CREAT;
-			break;
-		case FILE_OPEN_LE:
-		case FILE_OVERWRITE_LE:
-			oflags &= ~O_CREAT;
-			break;
-		default:
-			break;
-		}
-	}
-
-	return oflags;
-}
-
-/**
- * smb2_tree_disconnect() - handler for smb tree connect request
- * @work:	smb work containing request buffer
- *
- * Return:      0
- */
-int smb2_tree_disconnect(struct ksmbd_work *work)
-{
-	struct smb2_tree_disconnect_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_session *sess = work->sess;
-	struct ksmbd_tree_connect *tcon = work->tcon;
-
-	rsp->StructureSize = cpu_to_le16(4);
-	inc_rfc1001_len(work->response_buf, 4);
-
-	ksmbd_debug(SMB, "request\n");
-
-	if (!tcon || test_and_set_bit(TREE_CONN_EXPIRE, &tcon->status)) {
-		struct smb2_tree_disconnect_req *req =
-			smb2_get_msg(work->request_buf);
-
-		ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId);
-
-		rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED;
-		smb2_set_err_rsp(work);
-		return 0;
-	}
-
-	ksmbd_close_tree_conn_fds(work);
-	ksmbd_tree_conn_disconnect(sess, tcon);
-	work->tcon = NULL;
-	return 0;
-}
-
-/**
- * smb2_session_logoff() - handler for session log off request
- * @work:	smb work containing request buffer
- *
- * Return:      0
- */
-int smb2_session_logoff(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_logoff_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_session *sess;
-	struct smb2_logoff_req *req = smb2_get_msg(work->request_buf);
-	u64 sess_id = le64_to_cpu(req->hdr.SessionId);
-
-	rsp->StructureSize = cpu_to_le16(4);
-	inc_rfc1001_len(work->response_buf, 4);
-
-	ksmbd_debug(SMB, "request\n");
-
-	ksmbd_all_conn_set_status(sess_id, KSMBD_SESS_NEED_RECONNECT);
-	ksmbd_close_session_fds(work);
-	ksmbd_conn_wait_idle(conn, sess_id);
-
-	/*
-	 * Re-lookup session to validate if session is deleted
-	 * while waiting request complete
-	 */
-	sess = ksmbd_session_lookup_all(conn, sess_id);
-	if (ksmbd_tree_conn_session_logoff(sess)) {
-		ksmbd_debug(SMB, "Invalid tid %d\n", req->hdr.Id.SyncId.TreeId);
-		rsp->hdr.Status = STATUS_NETWORK_NAME_DELETED;
-		smb2_set_err_rsp(work);
-		return 0;
-	}
-
-	ksmbd_destroy_file_table(&sess->file_table);
-	sess->state = SMB2_SESSION_EXPIRED;
-
-	ksmbd_free_user(sess->user);
-	sess->user = NULL;
-	ksmbd_all_conn_set_status(sess_id, KSMBD_SESS_NEED_NEGOTIATE);
-	return 0;
-}
-
-/**
- * create_smb2_pipe() - create IPC pipe
- * @work:	smb work containing request buffer
- *
- * Return:      0 on success, otherwise error
- */
-static noinline int create_smb2_pipe(struct ksmbd_work *work)
-{
-	struct smb2_create_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct smb2_create_req *req = smb2_get_msg(work->request_buf);
-	int id;
-	int err;
-	char *name;
-
-	name = smb_strndup_from_utf16(req->Buffer, le16_to_cpu(req->NameLength),
-				      1, work->conn->local_nls);
-	if (IS_ERR(name)) {
-		rsp->hdr.Status = STATUS_NO_MEMORY;
-		err = PTR_ERR(name);
-		goto out;
-	}
-
-	id = ksmbd_session_rpc_open(work->sess, name);
-	if (id < 0) {
-		pr_err("Unable to open RPC pipe: %d\n", id);
-		err = id;
-		goto out;
-	}
-
-	rsp->hdr.Status = STATUS_SUCCESS;
-	rsp->StructureSize = cpu_to_le16(89);
-	rsp->OplockLevel = SMB2_OPLOCK_LEVEL_NONE;
-	rsp->Flags = 0;
-	rsp->CreateAction = cpu_to_le32(FILE_OPENED);
-
-	rsp->CreationTime = cpu_to_le64(0);
-	rsp->LastAccessTime = cpu_to_le64(0);
-	rsp->ChangeTime = cpu_to_le64(0);
-	rsp->AllocationSize = cpu_to_le64(0);
-	rsp->EndofFile = cpu_to_le64(0);
-	rsp->FileAttributes = FILE_ATTRIBUTE_NORMAL_LE;
-	rsp->Reserved2 = 0;
-	rsp->VolatileFileId = id;
-	rsp->PersistentFileId = 0;
-	rsp->CreateContextsOffset = 0;
-	rsp->CreateContextsLength = 0;
-
-	inc_rfc1001_len(work->response_buf, 88); /* StructureSize - 1*/
-	kfree(name);
-	return 0;
-
-out:
-	switch (err) {
-	case -EINVAL:
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		break;
-	case -ENOSPC:
-	case -ENOMEM:
-		rsp->hdr.Status = STATUS_NO_MEMORY;
-		break;
-	}
-
-	if (!IS_ERR(name))
-		kfree(name);
-
-	smb2_set_err_rsp(work);
-	return err;
-}
-
-/**
- * smb2_set_ea() - handler for setting extended attributes using set
- *		info command
- * @eabuf:	set info command buffer
- * @buf_len:	set info command buffer length
- * @path:	dentry path for get ea
- *
- * Return:	0 on success, otherwise error
- */
-static int smb2_set_ea(struct smb2_ea_info *eabuf, unsigned int buf_len,
-		       const struct path *path)
-{
-	struct mnt_idmap *idmap = mnt_idmap(path->mnt);
-	char *attr_name = NULL, *value;
-	int rc = 0;
-	unsigned int next = 0;
-
-	if (buf_len < sizeof(struct smb2_ea_info) + eabuf->EaNameLength +
-			le16_to_cpu(eabuf->EaValueLength))
-		return -EINVAL;
-
-	attr_name = kmalloc(XATTR_NAME_MAX + 1, GFP_KERNEL);
-	if (!attr_name)
-		return -ENOMEM;
-
-	do {
-		if (!eabuf->EaNameLength)
-			goto next;
-
-		ksmbd_debug(SMB,
-			    "name : <%s>, name_len : %u, value_len : %u, next : %u\n",
-			    eabuf->name, eabuf->EaNameLength,
-			    le16_to_cpu(eabuf->EaValueLength),
-			    le32_to_cpu(eabuf->NextEntryOffset));
-
-		if (eabuf->EaNameLength >
-		    (XATTR_NAME_MAX - XATTR_USER_PREFIX_LEN)) {
-			rc = -EINVAL;
-			break;
-		}
-
-		memcpy(attr_name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN);
-		memcpy(&attr_name[XATTR_USER_PREFIX_LEN], eabuf->name,
-		       eabuf->EaNameLength);
-		attr_name[XATTR_USER_PREFIX_LEN + eabuf->EaNameLength] = '\0';
-		value = (char *)&eabuf->name + eabuf->EaNameLength + 1;
-
-		if (!eabuf->EaValueLength) {
-			rc = ksmbd_vfs_casexattr_len(idmap,
-						     path->dentry,
-						     attr_name,
-						     XATTR_USER_PREFIX_LEN +
-						     eabuf->EaNameLength);
-
-			/* delete the EA only when it exits */
-			if (rc > 0) {
-				rc = ksmbd_vfs_remove_xattr(idmap,
-							    path->dentry,
-							    attr_name);
-
-				if (rc < 0) {
-					ksmbd_debug(SMB,
-						    "remove xattr failed(%d)\n",
-						    rc);
-					break;
-				}
-			}
-
-			/* if the EA doesn't exist, just do nothing. */
-			rc = 0;
-		} else {
-			rc = ksmbd_vfs_setxattr(idmap,
-						path->dentry, attr_name, value,
-						le16_to_cpu(eabuf->EaValueLength), 0);
-			if (rc < 0) {
-				ksmbd_debug(SMB,
-					    "ksmbd_vfs_setxattr is failed(%d)\n",
-					    rc);
-				break;
-			}
-		}
-
-next:
-		next = le32_to_cpu(eabuf->NextEntryOffset);
-		if (next == 0 || buf_len < next)
-			break;
-		buf_len -= next;
-		eabuf = (struct smb2_ea_info *)((char *)eabuf + next);
-		if (next < (u32)eabuf->EaNameLength + le16_to_cpu(eabuf->EaValueLength))
-			break;
-
-	} while (next != 0);
-
-	kfree(attr_name);
-	return rc;
-}
-
-static noinline int smb2_set_stream_name_xattr(const struct path *path,
-					       struct ksmbd_file *fp,
-					       char *stream_name, int s_type)
-{
-	struct mnt_idmap *idmap = mnt_idmap(path->mnt);
-	size_t xattr_stream_size;
-	char *xattr_stream_name;
-	int rc;
-
-	rc = ksmbd_vfs_xattr_stream_name(stream_name,
-					 &xattr_stream_name,
-					 &xattr_stream_size,
-					 s_type);
-	if (rc)
-		return rc;
-
-	fp->stream.name = xattr_stream_name;
-	fp->stream.size = xattr_stream_size;
-
-	/* Check if there is stream prefix in xattr space */
-	rc = ksmbd_vfs_casexattr_len(idmap,
-				     path->dentry,
-				     xattr_stream_name,
-				     xattr_stream_size);
-	if (rc >= 0)
-		return 0;
-
-	if (fp->cdoption == FILE_OPEN_LE) {
-		ksmbd_debug(SMB, "XATTR stream name lookup failed: %d\n", rc);
-		return -EBADF;
-	}
-
-	rc = ksmbd_vfs_setxattr(idmap, path->dentry,
-				xattr_stream_name, NULL, 0, 0);
-	if (rc < 0)
-		pr_err("Failed to store XATTR stream name :%d\n", rc);
-	return 0;
-}
-
-static int smb2_remove_smb_xattrs(const struct path *path)
-{
-	struct mnt_idmap *idmap = mnt_idmap(path->mnt);
-	char *name, *xattr_list = NULL;
-	ssize_t xattr_list_len;
-	int err = 0;
-
-	xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list);
-	if (xattr_list_len < 0) {
-		goto out;
-	} else if (!xattr_list_len) {
-		ksmbd_debug(SMB, "empty xattr in the file\n");
-		goto out;
-	}
-
-	for (name = xattr_list; name - xattr_list < xattr_list_len;
-			name += strlen(name) + 1) {
-		ksmbd_debug(SMB, "%s, len %zd\n", name, strlen(name));
-
-		if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) &&
-		    !strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX,
-			     STREAM_PREFIX_LEN)) {
-			err = ksmbd_vfs_remove_xattr(idmap, path->dentry,
-						     name);
-			if (err)
-				ksmbd_debug(SMB, "remove xattr failed : %s\n",
-					    name);
-		}
-	}
-out:
-	kvfree(xattr_list);
-	return err;
-}
-
-static int smb2_create_truncate(const struct path *path)
-{
-	int rc = vfs_truncate(path, 0);
-
-	if (rc) {
-		pr_err("vfs_truncate failed, rc %d\n", rc);
-		return rc;
-	}
-
-	rc = smb2_remove_smb_xattrs(path);
-	if (rc == -EOPNOTSUPP)
-		rc = 0;
-	if (rc)
-		ksmbd_debug(SMB,
-			    "ksmbd_truncate_stream_name_xattr failed, rc %d\n",
-			    rc);
-	return rc;
-}
-
-static void smb2_new_xattrs(struct ksmbd_tree_connect *tcon, const struct path *path,
-			    struct ksmbd_file *fp)
-{
-	struct xattr_dos_attrib da = {0};
-	int rc;
-
-	if (!test_share_config_flag(tcon->share_conf,
-				    KSMBD_SHARE_FLAG_STORE_DOS_ATTRS))
-		return;
-
-	da.version = 4;
-	da.attr = le32_to_cpu(fp->f_ci->m_fattr);
-	da.itime = da.create_time = fp->create_time;
-	da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME |
-		XATTR_DOSINFO_ITIME;
-
-	rc = ksmbd_vfs_set_dos_attrib_xattr(mnt_idmap(path->mnt),
-					    path->dentry, &da);
-	if (rc)
-		ksmbd_debug(SMB, "failed to store file attribute into xattr\n");
-}
-
-static void smb2_update_xattrs(struct ksmbd_tree_connect *tcon,
-			       const struct path *path, struct ksmbd_file *fp)
-{
-	struct xattr_dos_attrib da;
-	int rc;
-
-	fp->f_ci->m_fattr &= ~(FILE_ATTRIBUTE_HIDDEN_LE | FILE_ATTRIBUTE_SYSTEM_LE);
-
-	/* get FileAttributes from XATTR_NAME_DOS_ATTRIBUTE */
-	if (!test_share_config_flag(tcon->share_conf,
-				    KSMBD_SHARE_FLAG_STORE_DOS_ATTRS))
-		return;
-
-	rc = ksmbd_vfs_get_dos_attrib_xattr(mnt_idmap(path->mnt),
-					    path->dentry, &da);
-	if (rc > 0) {
-		fp->f_ci->m_fattr = cpu_to_le32(da.attr);
-		fp->create_time = da.create_time;
-		fp->itime = da.itime;
-	}
-}
-
-static int smb2_creat(struct ksmbd_work *work, struct path *path, char *name,
-		      int open_flags, umode_t posix_mode, bool is_dir)
-{
-	struct ksmbd_tree_connect *tcon = work->tcon;
-	struct ksmbd_share_config *share = tcon->share_conf;
-	umode_t mode;
-	int rc;
-
-	if (!(open_flags & O_CREAT))
-		return -EBADF;
-
-	ksmbd_debug(SMB, "file does not exist, so creating\n");
-	if (is_dir == true) {
-		ksmbd_debug(SMB, "creating directory\n");
-
-		mode = share_config_directory_mode(share, posix_mode);
-		rc = ksmbd_vfs_mkdir(work, name, mode);
-		if (rc)
-			return rc;
-	} else {
-		ksmbd_debug(SMB, "creating regular file\n");
-
-		mode = share_config_create_mode(share, posix_mode);
-		rc = ksmbd_vfs_create(work, name, mode);
-		if (rc)
-			return rc;
-	}
-
-	rc = ksmbd_vfs_kern_path_locked(work, name, 0, path, 0);
-	if (rc) {
-		pr_err("cannot get linux path (%s), err = %d\n",
-		       name, rc);
-		return rc;
-	}
-	return 0;
-}
-
-static int smb2_create_sd_buffer(struct ksmbd_work *work,
-				 struct smb2_create_req *req,
-				 const struct path *path)
-{
-	struct create_context *context;
-	struct create_sd_buf_req *sd_buf;
-
-	if (!req->CreateContextsOffset)
-		return -ENOENT;
-
-	/* Parse SD BUFFER create contexts */
-	context = smb2_find_context_vals(req, SMB2_CREATE_SD_BUFFER, 4);
-	if (!context)
-		return -ENOENT;
-	else if (IS_ERR(context))
-		return PTR_ERR(context);
-
-	ksmbd_debug(SMB,
-		    "Set ACLs using SMB2_CREATE_SD_BUFFER context\n");
-	sd_buf = (struct create_sd_buf_req *)context;
-	if (le16_to_cpu(context->DataOffset) +
-	    le32_to_cpu(context->DataLength) <
-	    sizeof(struct create_sd_buf_req))
-		return -EINVAL;
-	return set_info_sec(work->conn, work->tcon, path, &sd_buf->ntsd,
-			    le32_to_cpu(sd_buf->ccontext.DataLength), true);
-}
-
-static void ksmbd_acls_fattr(struct smb_fattr *fattr,
-			     struct mnt_idmap *idmap,
-			     struct inode *inode)
-{
-	vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode);
-	vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode);
-
-	fattr->cf_uid = vfsuid_into_kuid(vfsuid);
-	fattr->cf_gid = vfsgid_into_kgid(vfsgid);
-	fattr->cf_mode = inode->i_mode;
-	fattr->cf_acls = NULL;
-	fattr->cf_dacls = NULL;
-
-	if (IS_ENABLED(CONFIG_FS_POSIX_ACL)) {
-		fattr->cf_acls = get_inode_acl(inode, ACL_TYPE_ACCESS);
-		if (S_ISDIR(inode->i_mode))
-			fattr->cf_dacls = get_inode_acl(inode, ACL_TYPE_DEFAULT);
-	}
-}
-
-/**
- * smb2_open() - handler for smb file open request
- * @work:	smb work containing request buffer
- *
- * Return:      0 on success, otherwise error
- */
-int smb2_open(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_session *sess = work->sess;
-	struct ksmbd_tree_connect *tcon = work->tcon;
-	struct smb2_create_req *req;
-	struct smb2_create_rsp *rsp;
-	struct path path;
-	struct ksmbd_share_config *share = tcon->share_conf;
-	struct ksmbd_file *fp = NULL;
-	struct file *filp = NULL;
-	struct mnt_idmap *idmap = NULL;
-	struct kstat stat;
-	struct create_context *context;
-	struct lease_ctx_info *lc = NULL;
-	struct create_ea_buf_req *ea_buf = NULL;
-	struct oplock_info *opinfo;
-	__le32 *next_ptr = NULL;
-	int req_op_level = 0, open_flags = 0, may_flags = 0, file_info = 0;
-	int rc = 0;
-	int contxt_cnt = 0, query_disk_id = 0;
-	int maximal_access_ctxt = 0, posix_ctxt = 0;
-	int s_type = 0;
-	int next_off = 0;
-	char *name = NULL;
-	char *stream_name = NULL;
-	bool file_present = false, created = false, already_permitted = false;
-	int share_ret, need_truncate = 0;
-	u64 time;
-	umode_t posix_mode = 0;
-	__le32 daccess, maximal_access = 0;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	if (req->hdr.NextCommand && !work->next_smb2_rcv_hdr_off &&
-	    (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS)) {
-		ksmbd_debug(SMB, "invalid flag in chained command\n");
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		smb2_set_err_rsp(work);
-		return -EINVAL;
-	}
-
-	if (test_share_config_flag(share, KSMBD_SHARE_FLAG_PIPE)) {
-		ksmbd_debug(SMB, "IPC pipe create request\n");
-		return create_smb2_pipe(work);
-	}
-
-	if (req->NameLength) {
-		if ((req->CreateOptions & FILE_DIRECTORY_FILE_LE) &&
-		    *(char *)req->Buffer == '\\') {
-			pr_err("not allow directory name included leading slash\n");
-			rc = -EINVAL;
-			goto err_out1;
-		}
-
-		name = smb2_get_name(req->Buffer,
-				     le16_to_cpu(req->NameLength),
-				     work->conn->local_nls);
-		if (IS_ERR(name)) {
-			rc = PTR_ERR(name);
-			if (rc != -ENOMEM)
-				rc = -ENOENT;
-			name = NULL;
-			goto err_out1;
-		}
-
-		ksmbd_debug(SMB, "converted name = %s\n", name);
-		if (strchr(name, ':')) {
-			if (!test_share_config_flag(work->tcon->share_conf,
-						    KSMBD_SHARE_FLAG_STREAMS)) {
-				rc = -EBADF;
-				goto err_out1;
-			}
-			rc = parse_stream_name(name, &stream_name, &s_type);
-			if (rc < 0)
-				goto err_out1;
-		}
-
-		rc = ksmbd_validate_filename(name);
-		if (rc < 0)
-			goto err_out1;
-
-		if (ksmbd_share_veto_filename(share, name)) {
-			rc = -ENOENT;
-			ksmbd_debug(SMB, "Reject open(), vetoed file: %s\n",
-				    name);
-			goto err_out1;
-		}
-	} else {
-		name = kstrdup("", GFP_KERNEL);
-		if (!name) {
-			rc = -ENOMEM;
-			goto err_out1;
-		}
-	}
-
-	req_op_level = req->RequestedOplockLevel;
-	if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
-		lc = parse_lease_state(req);
-
-	if (le32_to_cpu(req->ImpersonationLevel) > le32_to_cpu(IL_DELEGATE)) {
-		pr_err("Invalid impersonationlevel : 0x%x\n",
-		       le32_to_cpu(req->ImpersonationLevel));
-		rc = -EIO;
-		rsp->hdr.Status = STATUS_BAD_IMPERSONATION_LEVEL;
-		goto err_out1;
-	}
-
-	if (req->CreateOptions && !(req->CreateOptions & CREATE_OPTIONS_MASK_LE)) {
-		pr_err("Invalid create options : 0x%x\n",
-		       le32_to_cpu(req->CreateOptions));
-		rc = -EINVAL;
-		goto err_out1;
-	} else {
-		if (req->CreateOptions & FILE_SEQUENTIAL_ONLY_LE &&
-		    req->CreateOptions & FILE_RANDOM_ACCESS_LE)
-			req->CreateOptions = ~(FILE_SEQUENTIAL_ONLY_LE);
-
-		if (req->CreateOptions &
-		    (FILE_OPEN_BY_FILE_ID_LE | CREATE_TREE_CONNECTION |
-		     FILE_RESERVE_OPFILTER_LE)) {
-			rc = -EOPNOTSUPP;
-			goto err_out1;
-		}
-
-		if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) {
-			if (req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE) {
-				rc = -EINVAL;
-				goto err_out1;
-			} else if (req->CreateOptions & FILE_NO_COMPRESSION_LE) {
-				req->CreateOptions = ~(FILE_NO_COMPRESSION_LE);
-			}
-		}
-	}
-
-	if (le32_to_cpu(req->CreateDisposition) >
-	    le32_to_cpu(FILE_OVERWRITE_IF_LE)) {
-		pr_err("Invalid create disposition : 0x%x\n",
-		       le32_to_cpu(req->CreateDisposition));
-		rc = -EINVAL;
-		goto err_out1;
-	}
-
-	if (!(req->DesiredAccess & DESIRED_ACCESS_MASK)) {
-		pr_err("Invalid desired access : 0x%x\n",
-		       le32_to_cpu(req->DesiredAccess));
-		rc = -EACCES;
-		goto err_out1;
-	}
-
-	if (req->FileAttributes && !(req->FileAttributes & FILE_ATTRIBUTE_MASK_LE)) {
-		pr_err("Invalid file attribute : 0x%x\n",
-		       le32_to_cpu(req->FileAttributes));
-		rc = -EINVAL;
-		goto err_out1;
-	}
-
-	if (req->CreateContextsOffset) {
-		/* Parse non-durable handle create contexts */
-		context = smb2_find_context_vals(req, SMB2_CREATE_EA_BUFFER, 4);
-		if (IS_ERR(context)) {
-			rc = PTR_ERR(context);
-			goto err_out1;
-		} else if (context) {
-			ea_buf = (struct create_ea_buf_req *)context;
-			if (le16_to_cpu(context->DataOffset) +
-			    le32_to_cpu(context->DataLength) <
-			    sizeof(struct create_ea_buf_req)) {
-				rc = -EINVAL;
-				goto err_out1;
-			}
-			if (req->CreateOptions & FILE_NO_EA_KNOWLEDGE_LE) {
-				rsp->hdr.Status = STATUS_ACCESS_DENIED;
-				rc = -EACCES;
-				goto err_out1;
-			}
-		}
-
-		context = smb2_find_context_vals(req,
-						 SMB2_CREATE_QUERY_MAXIMAL_ACCESS_REQUEST, 4);
-		if (IS_ERR(context)) {
-			rc = PTR_ERR(context);
-			goto err_out1;
-		} else if (context) {
-			ksmbd_debug(SMB,
-				    "get query maximal access context\n");
-			maximal_access_ctxt = 1;
-		}
-
-		context = smb2_find_context_vals(req,
-						 SMB2_CREATE_TIMEWARP_REQUEST, 4);
-		if (IS_ERR(context)) {
-			rc = PTR_ERR(context);
-			goto err_out1;
-		} else if (context) {
-			ksmbd_debug(SMB, "get timewarp context\n");
-			rc = -EBADF;
-			goto err_out1;
-		}
-
-		if (tcon->posix_extensions) {
-			context = smb2_find_context_vals(req,
-							 SMB2_CREATE_TAG_POSIX, 16);
-			if (IS_ERR(context)) {
-				rc = PTR_ERR(context);
-				goto err_out1;
-			} else if (context) {
-				struct create_posix *posix =
-					(struct create_posix *)context;
-				if (le16_to_cpu(context->DataOffset) +
-				    le32_to_cpu(context->DataLength) <
-				    sizeof(struct create_posix) - 4) {
-					rc = -EINVAL;
-					goto err_out1;
-				}
-				ksmbd_debug(SMB, "get posix context\n");
-
-				posix_mode = le32_to_cpu(posix->Mode);
-				posix_ctxt = 1;
-			}
-		}
-	}
-
-	if (ksmbd_override_fsids(work)) {
-		rc = -ENOMEM;
-		goto err_out1;
-	}
-
-	rc = ksmbd_vfs_kern_path_locked(work, name, LOOKUP_NO_SYMLINKS, &path, 1);
-	if (!rc) {
-		file_present = true;
-
-		if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE) {
-			/*
-			 * If file exists with under flags, return access
-			 * denied error.
-			 */
-			if (req->CreateDisposition == FILE_OVERWRITE_IF_LE ||
-			    req->CreateDisposition == FILE_OPEN_IF_LE) {
-				rc = -EACCES;
-				goto err_out;
-			}
-
-			if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-				ksmbd_debug(SMB,
-					    "User does not have write permission\n");
-				rc = -EACCES;
-				goto err_out;
-			}
-		} else if (d_is_symlink(path.dentry)) {
-			rc = -EACCES;
-			goto err_out;
-		}
-
-		file_present = true;
-		idmap = mnt_idmap(path.mnt);
-	} else {
-		if (rc != -ENOENT)
-			goto err_out;
-		ksmbd_debug(SMB, "can not get linux path for %s, rc = %d\n",
-			    name, rc);
-		rc = 0;
-	}
-
-	if (stream_name) {
-		if (req->CreateOptions & FILE_DIRECTORY_FILE_LE) {
-			if (s_type == DATA_STREAM) {
-				rc = -EIO;
-				rsp->hdr.Status = STATUS_NOT_A_DIRECTORY;
-			}
-		} else {
-			if (file_present && S_ISDIR(d_inode(path.dentry)->i_mode) &&
-			    s_type == DATA_STREAM) {
-				rc = -EIO;
-				rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY;
-			}
-		}
-
-		if (req->CreateOptions & FILE_DIRECTORY_FILE_LE &&
-		    req->FileAttributes & FILE_ATTRIBUTE_NORMAL_LE) {
-			rsp->hdr.Status = STATUS_NOT_A_DIRECTORY;
-			rc = -EIO;
-		}
-
-		if (rc < 0)
-			goto err_out;
-	}
-
-	if (file_present && req->CreateOptions & FILE_NON_DIRECTORY_FILE_LE &&
-	    S_ISDIR(d_inode(path.dentry)->i_mode) &&
-	    !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) {
-		ksmbd_debug(SMB, "open() argument is a directory: %s, %x\n",
-			    name, req->CreateOptions);
-		rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY;
-		rc = -EIO;
-		goto err_out;
-	}
-
-	if (file_present && (req->CreateOptions & FILE_DIRECTORY_FILE_LE) &&
-	    !(req->CreateDisposition == FILE_CREATE_LE) &&
-	    !S_ISDIR(d_inode(path.dentry)->i_mode)) {
-		rsp->hdr.Status = STATUS_NOT_A_DIRECTORY;
-		rc = -EIO;
-		goto err_out;
-	}
-
-	if (!stream_name && file_present &&
-	    req->CreateDisposition == FILE_CREATE_LE) {
-		rc = -EEXIST;
-		goto err_out;
-	}
-
-	daccess = smb_map_generic_desired_access(req->DesiredAccess);
-
-	if (file_present && !(req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) {
-		rc = smb_check_perm_dacl(conn, &path, &daccess,
-					 sess->user->uid);
-		if (rc)
-			goto err_out;
-	}
-
-	if (daccess & FILE_MAXIMAL_ACCESS_LE) {
-		if (!file_present) {
-			daccess = cpu_to_le32(GENERIC_ALL_FLAGS);
-		} else {
-			rc = ksmbd_vfs_query_maximal_access(idmap,
-							    path.dentry,
-							    &daccess);
-			if (rc)
-				goto err_out;
-			already_permitted = true;
-		}
-		maximal_access = daccess;
-	}
-
-	open_flags = smb2_create_open_flags(file_present, daccess,
-					    req->CreateDisposition,
-					    &may_flags);
-
-	if (!test_tree_conn_flag(tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-		if (open_flags & O_CREAT) {
-			ksmbd_debug(SMB,
-				    "User does not have write permission\n");
-			rc = -EACCES;
-			goto err_out;
-		}
-	}
-
-	/*create file if not present */
-	if (!file_present) {
-		rc = smb2_creat(work, &path, name, open_flags, posix_mode,
-				req->CreateOptions & FILE_DIRECTORY_FILE_LE);
-		if (rc) {
-			if (rc == -ENOENT) {
-				rc = -EIO;
-				rsp->hdr.Status = STATUS_OBJECT_PATH_NOT_FOUND;
-			}
-			goto err_out;
-		}
-
-		created = true;
-		idmap = mnt_idmap(path.mnt);
-		if (ea_buf) {
-			if (le32_to_cpu(ea_buf->ccontext.DataLength) <
-			    sizeof(struct smb2_ea_info)) {
-				rc = -EINVAL;
-				goto err_out;
-			}
-
-			rc = smb2_set_ea(&ea_buf->ea,
-					 le32_to_cpu(ea_buf->ccontext.DataLength),
-					 &path);
-			if (rc == -EOPNOTSUPP)
-				rc = 0;
-			else if (rc)
-				goto err_out;
-		}
-	} else if (!already_permitted) {
-		/* FILE_READ_ATTRIBUTE is allowed without inode_permission,
-		 * because execute(search) permission on a parent directory,
-		 * is already granted.
-		 */
-		if (daccess & ~(FILE_READ_ATTRIBUTES_LE | FILE_READ_CONTROL_LE)) {
-			rc = inode_permission(idmap,
-					      d_inode(path.dentry),
-					      may_flags);
-			if (rc)
-				goto err_out;
-
-			if ((daccess & FILE_DELETE_LE) ||
-			    (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)) {
-				rc = inode_permission(idmap,
-						      d_inode(path.dentry->d_parent),
-						      MAY_EXEC | MAY_WRITE);
-				if (rc)
-					goto err_out;
-			}
-		}
-	}
-
-	rc = ksmbd_query_inode_status(d_inode(path.dentry->d_parent));
-	if (rc == KSMBD_INODE_STATUS_PENDING_DELETE) {
-		rc = -EBUSY;
-		goto err_out;
-	}
-
-	rc = 0;
-	filp = dentry_open(&path, open_flags, current_cred());
-	if (IS_ERR(filp)) {
-		rc = PTR_ERR(filp);
-		pr_err("dentry open for dir failed, rc %d\n", rc);
-		goto err_out;
-	}
-
-	if (file_present) {
-		if (!(open_flags & O_TRUNC))
-			file_info = FILE_OPENED;
-		else
-			file_info = FILE_OVERWRITTEN;
-
-		if ((req->CreateDisposition & FILE_CREATE_MASK_LE) ==
-		    FILE_SUPERSEDE_LE)
-			file_info = FILE_SUPERSEDED;
-	} else if (open_flags & O_CREAT) {
-		file_info = FILE_CREATED;
-	}
-
-	ksmbd_vfs_set_fadvise(filp, req->CreateOptions);
-
-	/* Obtain Volatile-ID */
-	fp = ksmbd_open_fd(work, filp);
-	if (IS_ERR(fp)) {
-		fput(filp);
-		rc = PTR_ERR(fp);
-		fp = NULL;
-		goto err_out;
-	}
-
-	/* Get Persistent-ID */
-	ksmbd_open_durable_fd(fp);
-	if (!has_file_id(fp->persistent_id)) {
-		rc = -ENOMEM;
-		goto err_out;
-	}
-
-	fp->cdoption = req->CreateDisposition;
-	fp->daccess = daccess;
-	fp->saccess = req->ShareAccess;
-	fp->coption = req->CreateOptions;
-
-	/* Set default windows and posix acls if creating new file */
-	if (created) {
-		int posix_acl_rc;
-		struct inode *inode = d_inode(path.dentry);
-
-		posix_acl_rc = ksmbd_vfs_inherit_posix_acl(idmap,
-							   path.dentry,
-							   d_inode(path.dentry->d_parent));
-		if (posix_acl_rc)
-			ksmbd_debug(SMB, "inherit posix acl failed : %d\n", posix_acl_rc);
-
-		if (test_share_config_flag(work->tcon->share_conf,
-					   KSMBD_SHARE_FLAG_ACL_XATTR)) {
-			rc = smb_inherit_dacl(conn, &path, sess->user->uid,
-					      sess->user->gid);
-		}
-
-		if (rc) {
-			rc = smb2_create_sd_buffer(work, req, &path);
-			if (rc) {
-				if (posix_acl_rc)
-					ksmbd_vfs_set_init_posix_acl(idmap,
-								     path.dentry);
-
-				if (test_share_config_flag(work->tcon->share_conf,
-							   KSMBD_SHARE_FLAG_ACL_XATTR)) {
-					struct smb_fattr fattr;
-					struct smb_ntsd *pntsd;
-					int pntsd_size, ace_num = 0;
-
-					ksmbd_acls_fattr(&fattr, idmap, inode);
-					if (fattr.cf_acls)
-						ace_num = fattr.cf_acls->a_count;
-					if (fattr.cf_dacls)
-						ace_num += fattr.cf_dacls->a_count;
-
-					pntsd = kmalloc(sizeof(struct smb_ntsd) +
-							sizeof(struct smb_sid) * 3 +
-							sizeof(struct smb_acl) +
-							sizeof(struct smb_ace) * ace_num * 2,
-							GFP_KERNEL);
-					if (!pntsd) {
-						posix_acl_release(fattr.cf_acls);
-						posix_acl_release(fattr.cf_dacls);
-						goto err_out;
-					}
-
-					rc = build_sec_desc(idmap,
-							    pntsd, NULL, 0,
-							    OWNER_SECINFO |
-							    GROUP_SECINFO |
-							    DACL_SECINFO,
-							    &pntsd_size, &fattr);
-					posix_acl_release(fattr.cf_acls);
-					posix_acl_release(fattr.cf_dacls);
-					if (rc) {
-						kfree(pntsd);
-						goto err_out;
-					}
-
-					rc = ksmbd_vfs_set_sd_xattr(conn,
-								    idmap,
-								    path.dentry,
-								    pntsd,
-								    pntsd_size);
-					kfree(pntsd);
-					if (rc)
-						pr_err("failed to store ntacl in xattr : %d\n",
-						       rc);
-				}
-			}
-		}
-		rc = 0;
-	}
-
-	if (stream_name) {
-		rc = smb2_set_stream_name_xattr(&path,
-						fp,
-						stream_name,
-						s_type);
-		if (rc)
-			goto err_out;
-		file_info = FILE_CREATED;
-	}
-
-	fp->attrib_only = !(req->DesiredAccess & ~(FILE_READ_ATTRIBUTES_LE |
-			FILE_WRITE_ATTRIBUTES_LE | FILE_SYNCHRONIZE_LE));
-	if (!S_ISDIR(file_inode(filp)->i_mode) && open_flags & O_TRUNC &&
-	    !fp->attrib_only && !stream_name) {
-		smb_break_all_oplock(work, fp);
-		need_truncate = 1;
-	}
-
-	/* fp should be searchable through ksmbd_inode.m_fp_list
-	 * after daccess, saccess, attrib_only, and stream are
-	 * initialized.
-	 */
-	write_lock(&fp->f_ci->m_lock);
-	list_add(&fp->node, &fp->f_ci->m_fp_list);
-	write_unlock(&fp->f_ci->m_lock);
-
-	/* Check delete pending among previous fp before oplock break */
-	if (ksmbd_inode_pending_delete(fp)) {
-		rc = -EBUSY;
-		goto err_out;
-	}
-
-	share_ret = ksmbd_smb_check_shared_mode(fp->filp, fp);
-	if (!test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_OPLOCKS) ||
-	    (req_op_level == SMB2_OPLOCK_LEVEL_LEASE &&
-	     !(conn->vals->capabilities & SMB2_GLOBAL_CAP_LEASING))) {
-		if (share_ret < 0 && !S_ISDIR(file_inode(fp->filp)->i_mode)) {
-			rc = share_ret;
-			goto err_out;
-		}
-	} else {
-		if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) {
-			req_op_level = smb2_map_lease_to_oplock(lc->req_state);
-			ksmbd_debug(SMB,
-				    "lease req for(%s) req oplock state 0x%x, lease state 0x%x\n",
-				    name, req_op_level, lc->req_state);
-			rc = find_same_lease_key(sess, fp->f_ci, lc);
-			if (rc)
-				goto err_out;
-		} else if (open_flags == O_RDONLY &&
-			   (req_op_level == SMB2_OPLOCK_LEVEL_BATCH ||
-			    req_op_level == SMB2_OPLOCK_LEVEL_EXCLUSIVE))
-			req_op_level = SMB2_OPLOCK_LEVEL_II;
-
-		rc = smb_grant_oplock(work, req_op_level,
-				      fp->persistent_id, fp,
-				      le32_to_cpu(req->hdr.Id.SyncId.TreeId),
-				      lc, share_ret);
-		if (rc < 0)
-			goto err_out;
-	}
-
-	if (req->CreateOptions & FILE_DELETE_ON_CLOSE_LE)
-		ksmbd_fd_set_delete_on_close(fp, file_info);
-
-	if (need_truncate) {
-		rc = smb2_create_truncate(&path);
-		if (rc)
-			goto err_out;
-	}
-
-	if (req->CreateContextsOffset) {
-		struct create_alloc_size_req *az_req;
-
-		az_req = (struct create_alloc_size_req *)smb2_find_context_vals(req,
-					SMB2_CREATE_ALLOCATION_SIZE, 4);
-		if (IS_ERR(az_req)) {
-			rc = PTR_ERR(az_req);
-			goto err_out;
-		} else if (az_req) {
-			loff_t alloc_size;
-			int err;
-
-			if (le16_to_cpu(az_req->ccontext.DataOffset) +
-			    le32_to_cpu(az_req->ccontext.DataLength) <
-			    sizeof(struct create_alloc_size_req)) {
-				rc = -EINVAL;
-				goto err_out;
-			}
-			alloc_size = le64_to_cpu(az_req->AllocationSize);
-			ksmbd_debug(SMB,
-				    "request smb2 create allocate size : %llu\n",
-				    alloc_size);
-			smb_break_all_levII_oplock(work, fp, 1);
-			err = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0,
-					    alloc_size);
-			if (err < 0)
-				ksmbd_debug(SMB,
-					    "vfs_fallocate is failed : %d\n",
-					    err);
-		}
-
-		context = smb2_find_context_vals(req, SMB2_CREATE_QUERY_ON_DISK_ID, 4);
-		if (IS_ERR(context)) {
-			rc = PTR_ERR(context);
-			goto err_out;
-		} else if (context) {
-			ksmbd_debug(SMB, "get query on disk id context\n");
-			query_disk_id = 1;
-		}
-	}
-
-	rc = ksmbd_vfs_getattr(&path, &stat);
-	if (rc)
-		goto err_out;
-
-	if (stat.result_mask & STATX_BTIME)
-		fp->create_time = ksmbd_UnixTimeToNT(stat.btime);
-	else
-		fp->create_time = ksmbd_UnixTimeToNT(stat.ctime);
-	if (req->FileAttributes || fp->f_ci->m_fattr == 0)
-		fp->f_ci->m_fattr =
-			cpu_to_le32(smb2_get_dos_mode(&stat, le32_to_cpu(req->FileAttributes)));
-
-	if (!created)
-		smb2_update_xattrs(tcon, &path, fp);
-	else
-		smb2_new_xattrs(tcon, &path, fp);
-
-	memcpy(fp->client_guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE);
-
-	rsp->StructureSize = cpu_to_le16(89);
-	rcu_read_lock();
-	opinfo = rcu_dereference(fp->f_opinfo);
-	rsp->OplockLevel = opinfo != NULL ? opinfo->level : 0;
-	rcu_read_unlock();
-	rsp->Flags = 0;
-	rsp->CreateAction = cpu_to_le32(file_info);
-	rsp->CreationTime = cpu_to_le64(fp->create_time);
-	time = ksmbd_UnixTimeToNT(stat.atime);
-	rsp->LastAccessTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.mtime);
-	rsp->LastWriteTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.ctime);
-	rsp->ChangeTime = cpu_to_le64(time);
-	rsp->AllocationSize = S_ISDIR(stat.mode) ? 0 :
-		cpu_to_le64(stat.blocks << 9);
-	rsp->EndofFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size);
-	rsp->FileAttributes = fp->f_ci->m_fattr;
-
-	rsp->Reserved2 = 0;
-
-	rsp->PersistentFileId = fp->persistent_id;
-	rsp->VolatileFileId = fp->volatile_id;
-
-	rsp->CreateContextsOffset = 0;
-	rsp->CreateContextsLength = 0;
-	inc_rfc1001_len(work->response_buf, 88); /* StructureSize - 1*/
-
-	/* If lease is request send lease context response */
-	if (opinfo && opinfo->is_lease) {
-		struct create_context *lease_ccontext;
-
-		ksmbd_debug(SMB, "lease granted on(%s) lease state 0x%x\n",
-			    name, opinfo->o_lease->state);
-		rsp->OplockLevel = SMB2_OPLOCK_LEVEL_LEASE;
-
-		lease_ccontext = (struct create_context *)rsp->Buffer;
-		contxt_cnt++;
-		create_lease_buf(rsp->Buffer, opinfo->o_lease);
-		le32_add_cpu(&rsp->CreateContextsLength,
-			     conn->vals->create_lease_size);
-		inc_rfc1001_len(work->response_buf,
-				conn->vals->create_lease_size);
-		next_ptr = &lease_ccontext->Next;
-		next_off = conn->vals->create_lease_size;
-	}
-
-	if (maximal_access_ctxt) {
-		struct create_context *mxac_ccontext;
-
-		if (maximal_access == 0)
-			ksmbd_vfs_query_maximal_access(idmap,
-						       path.dentry,
-						       &maximal_access);
-		mxac_ccontext = (struct create_context *)(rsp->Buffer +
-				le32_to_cpu(rsp->CreateContextsLength));
-		contxt_cnt++;
-		create_mxac_rsp_buf(rsp->Buffer +
-				le32_to_cpu(rsp->CreateContextsLength),
-				le32_to_cpu(maximal_access));
-		le32_add_cpu(&rsp->CreateContextsLength,
-			     conn->vals->create_mxac_size);
-		inc_rfc1001_len(work->response_buf,
-				conn->vals->create_mxac_size);
-		if (next_ptr)
-			*next_ptr = cpu_to_le32(next_off);
-		next_ptr = &mxac_ccontext->Next;
-		next_off = conn->vals->create_mxac_size;
-	}
-
-	if (query_disk_id) {
-		struct create_context *disk_id_ccontext;
-
-		disk_id_ccontext = (struct create_context *)(rsp->Buffer +
-				le32_to_cpu(rsp->CreateContextsLength));
-		contxt_cnt++;
-		create_disk_id_rsp_buf(rsp->Buffer +
-				le32_to_cpu(rsp->CreateContextsLength),
-				stat.ino, tcon->id);
-		le32_add_cpu(&rsp->CreateContextsLength,
-			     conn->vals->create_disk_id_size);
-		inc_rfc1001_len(work->response_buf,
-				conn->vals->create_disk_id_size);
-		if (next_ptr)
-			*next_ptr = cpu_to_le32(next_off);
-		next_ptr = &disk_id_ccontext->Next;
-		next_off = conn->vals->create_disk_id_size;
-	}
-
-	if (posix_ctxt) {
-		contxt_cnt++;
-		create_posix_rsp_buf(rsp->Buffer +
-				le32_to_cpu(rsp->CreateContextsLength),
-				fp);
-		le32_add_cpu(&rsp->CreateContextsLength,
-			     conn->vals->create_posix_size);
-		inc_rfc1001_len(work->response_buf,
-				conn->vals->create_posix_size);
-		if (next_ptr)
-			*next_ptr = cpu_to_le32(next_off);
-	}
-
-	if (contxt_cnt > 0) {
-		rsp->CreateContextsOffset =
-			cpu_to_le32(offsetof(struct smb2_create_rsp, Buffer));
-	}
-
-err_out:
-	if (file_present || created) {
-		inode_unlock(d_inode(path.dentry->d_parent));
-		dput(path.dentry);
-	}
-	ksmbd_revert_fsids(work);
-err_out1:
-
-	if (rc) {
-		if (rc == -EINVAL)
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		else if (rc == -EOPNOTSUPP)
-			rsp->hdr.Status = STATUS_NOT_SUPPORTED;
-		else if (rc == -EACCES || rc == -ESTALE || rc == -EXDEV)
-			rsp->hdr.Status = STATUS_ACCESS_DENIED;
-		else if (rc == -ENOENT)
-			rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID;
-		else if (rc == -EPERM)
-			rsp->hdr.Status = STATUS_SHARING_VIOLATION;
-		else if (rc == -EBUSY)
-			rsp->hdr.Status = STATUS_DELETE_PENDING;
-		else if (rc == -EBADF)
-			rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND;
-		else if (rc == -ENOEXEC)
-			rsp->hdr.Status = STATUS_DUPLICATE_OBJECTID;
-		else if (rc == -ENXIO)
-			rsp->hdr.Status = STATUS_NO_SUCH_DEVICE;
-		else if (rc == -EEXIST)
-			rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION;
-		else if (rc == -EMFILE)
-			rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES;
-		if (!rsp->hdr.Status)
-			rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR;
-
-		if (fp)
-			ksmbd_fd_put(work, fp);
-		smb2_set_err_rsp(work);
-		ksmbd_debug(SMB, "Error response: %x\n", rsp->hdr.Status);
-	}
-
-	kfree(name);
-	kfree(lc);
-
-	return 0;
-}
-
-static int readdir_info_level_struct_sz(int info_level)
-{
-	switch (info_level) {
-	case FILE_FULL_DIRECTORY_INFORMATION:
-		return sizeof(struct file_full_directory_info);
-	case FILE_BOTH_DIRECTORY_INFORMATION:
-		return sizeof(struct file_both_directory_info);
-	case FILE_DIRECTORY_INFORMATION:
-		return sizeof(struct file_directory_info);
-	case FILE_NAMES_INFORMATION:
-		return sizeof(struct file_names_info);
-	case FILEID_FULL_DIRECTORY_INFORMATION:
-		return sizeof(struct file_id_full_dir_info);
-	case FILEID_BOTH_DIRECTORY_INFORMATION:
-		return sizeof(struct file_id_both_directory_info);
-	case SMB_FIND_FILE_POSIX_INFO:
-		return sizeof(struct smb2_posix_info);
-	default:
-		return -EOPNOTSUPP;
-	}
-}
-
-static int dentry_name(struct ksmbd_dir_info *d_info, int info_level)
-{
-	switch (info_level) {
-	case FILE_FULL_DIRECTORY_INFORMATION:
-	{
-		struct file_full_directory_info *ffdinfo;
-
-		ffdinfo = (struct file_full_directory_info *)d_info->rptr;
-		d_info->rptr += le32_to_cpu(ffdinfo->NextEntryOffset);
-		d_info->name = ffdinfo->FileName;
-		d_info->name_len = le32_to_cpu(ffdinfo->FileNameLength);
-		return 0;
-	}
-	case FILE_BOTH_DIRECTORY_INFORMATION:
-	{
-		struct file_both_directory_info *fbdinfo;
-
-		fbdinfo = (struct file_both_directory_info *)d_info->rptr;
-		d_info->rptr += le32_to_cpu(fbdinfo->NextEntryOffset);
-		d_info->name = fbdinfo->FileName;
-		d_info->name_len = le32_to_cpu(fbdinfo->FileNameLength);
-		return 0;
-	}
-	case FILE_DIRECTORY_INFORMATION:
-	{
-		struct file_directory_info *fdinfo;
-
-		fdinfo = (struct file_directory_info *)d_info->rptr;
-		d_info->rptr += le32_to_cpu(fdinfo->NextEntryOffset);
-		d_info->name = fdinfo->FileName;
-		d_info->name_len = le32_to_cpu(fdinfo->FileNameLength);
-		return 0;
-	}
-	case FILE_NAMES_INFORMATION:
-	{
-		struct file_names_info *fninfo;
-
-		fninfo = (struct file_names_info *)d_info->rptr;
-		d_info->rptr += le32_to_cpu(fninfo->NextEntryOffset);
-		d_info->name = fninfo->FileName;
-		d_info->name_len = le32_to_cpu(fninfo->FileNameLength);
-		return 0;
-	}
-	case FILEID_FULL_DIRECTORY_INFORMATION:
-	{
-		struct file_id_full_dir_info *dinfo;
-
-		dinfo = (struct file_id_full_dir_info *)d_info->rptr;
-		d_info->rptr += le32_to_cpu(dinfo->NextEntryOffset);
-		d_info->name = dinfo->FileName;
-		d_info->name_len = le32_to_cpu(dinfo->FileNameLength);
-		return 0;
-	}
-	case FILEID_BOTH_DIRECTORY_INFORMATION:
-	{
-		struct file_id_both_directory_info *fibdinfo;
-
-		fibdinfo = (struct file_id_both_directory_info *)d_info->rptr;
-		d_info->rptr += le32_to_cpu(fibdinfo->NextEntryOffset);
-		d_info->name = fibdinfo->FileName;
-		d_info->name_len = le32_to_cpu(fibdinfo->FileNameLength);
-		return 0;
-	}
-	case SMB_FIND_FILE_POSIX_INFO:
-	{
-		struct smb2_posix_info *posix_info;
-
-		posix_info = (struct smb2_posix_info *)d_info->rptr;
-		d_info->rptr += le32_to_cpu(posix_info->NextEntryOffset);
-		d_info->name = posix_info->name;
-		d_info->name_len = le32_to_cpu(posix_info->name_len);
-		return 0;
-	}
-	default:
-		return -EINVAL;
-	}
-}
-
-/**
- * smb2_populate_readdir_entry() - encode directory entry in smb2 response
- * buffer
- * @conn:	connection instance
- * @info_level:	smb information level
- * @d_info:	structure included variables for query dir
- * @ksmbd_kstat:	ksmbd wrapper of dirent stat information
- *
- * if directory has many entries, find first can't read it fully.
- * find next might be called multiple times to read remaining dir entries
- *
- * Return:	0 on success, otherwise error
- */
-static int smb2_populate_readdir_entry(struct ksmbd_conn *conn, int info_level,
-				       struct ksmbd_dir_info *d_info,
-				       struct ksmbd_kstat *ksmbd_kstat)
-{
-	int next_entry_offset = 0;
-	char *conv_name;
-	int conv_len;
-	void *kstat;
-	int struct_sz, rc = 0;
-
-	conv_name = ksmbd_convert_dir_info_name(d_info,
-						conn->local_nls,
-						&conv_len);
-	if (!conv_name)
-		return -ENOMEM;
-
-	/* Somehow the name has only terminating NULL bytes */
-	if (conv_len < 0) {
-		rc = -EINVAL;
-		goto free_conv_name;
-	}
-
-	struct_sz = readdir_info_level_struct_sz(info_level) + conv_len;
-	next_entry_offset = ALIGN(struct_sz, KSMBD_DIR_INFO_ALIGNMENT);
-	d_info->last_entry_off_align = next_entry_offset - struct_sz;
-
-	if (next_entry_offset > d_info->out_buf_len) {
-		d_info->out_buf_len = 0;
-		rc = -ENOSPC;
-		goto free_conv_name;
-	}
-
-	kstat = d_info->wptr;
-	if (info_level != FILE_NAMES_INFORMATION)
-		kstat = ksmbd_vfs_init_kstat(&d_info->wptr, ksmbd_kstat);
-
-	switch (info_level) {
-	case FILE_FULL_DIRECTORY_INFORMATION:
-	{
-		struct file_full_directory_info *ffdinfo;
-
-		ffdinfo = (struct file_full_directory_info *)kstat;
-		ffdinfo->FileNameLength = cpu_to_le32(conv_len);
-		ffdinfo->EaSize =
-			smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode);
-		if (ffdinfo->EaSize)
-			ffdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE;
-		if (d_info->hide_dot_file && d_info->name[0] == '.')
-			ffdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE;
-		memcpy(ffdinfo->FileName, conv_name, conv_len);
-		ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILE_BOTH_DIRECTORY_INFORMATION:
-	{
-		struct file_both_directory_info *fbdinfo;
-
-		fbdinfo = (struct file_both_directory_info *)kstat;
-		fbdinfo->FileNameLength = cpu_to_le32(conv_len);
-		fbdinfo->EaSize =
-			smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode);
-		if (fbdinfo->EaSize)
-			fbdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE;
-		fbdinfo->ShortNameLength = 0;
-		fbdinfo->Reserved = 0;
-		if (d_info->hide_dot_file && d_info->name[0] == '.')
-			fbdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE;
-		memcpy(fbdinfo->FileName, conv_name, conv_len);
-		fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILE_DIRECTORY_INFORMATION:
-	{
-		struct file_directory_info *fdinfo;
-
-		fdinfo = (struct file_directory_info *)kstat;
-		fdinfo->FileNameLength = cpu_to_le32(conv_len);
-		if (d_info->hide_dot_file && d_info->name[0] == '.')
-			fdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE;
-		memcpy(fdinfo->FileName, conv_name, conv_len);
-		fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILE_NAMES_INFORMATION:
-	{
-		struct file_names_info *fninfo;
-
-		fninfo = (struct file_names_info *)kstat;
-		fninfo->FileNameLength = cpu_to_le32(conv_len);
-		memcpy(fninfo->FileName, conv_name, conv_len);
-		fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILEID_FULL_DIRECTORY_INFORMATION:
-	{
-		struct file_id_full_dir_info *dinfo;
-
-		dinfo = (struct file_id_full_dir_info *)kstat;
-		dinfo->FileNameLength = cpu_to_le32(conv_len);
-		dinfo->EaSize =
-			smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode);
-		if (dinfo->EaSize)
-			dinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE;
-		dinfo->Reserved = 0;
-		dinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino);
-		if (d_info->hide_dot_file && d_info->name[0] == '.')
-			dinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE;
-		memcpy(dinfo->FileName, conv_name, conv_len);
-		dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILEID_BOTH_DIRECTORY_INFORMATION:
-	{
-		struct file_id_both_directory_info *fibdinfo;
-
-		fibdinfo = (struct file_id_both_directory_info *)kstat;
-		fibdinfo->FileNameLength = cpu_to_le32(conv_len);
-		fibdinfo->EaSize =
-			smb2_get_reparse_tag_special_file(ksmbd_kstat->kstat->mode);
-		if (fibdinfo->EaSize)
-			fibdinfo->ExtFileAttributes = FILE_ATTRIBUTE_REPARSE_POINT_LE;
-		fibdinfo->UniqueId = cpu_to_le64(ksmbd_kstat->kstat->ino);
-		fibdinfo->ShortNameLength = 0;
-		fibdinfo->Reserved = 0;
-		fibdinfo->Reserved2 = cpu_to_le16(0);
-		if (d_info->hide_dot_file && d_info->name[0] == '.')
-			fibdinfo->ExtFileAttributes |= FILE_ATTRIBUTE_HIDDEN_LE;
-		memcpy(fibdinfo->FileName, conv_name, conv_len);
-		fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case SMB_FIND_FILE_POSIX_INFO:
-	{
-		struct smb2_posix_info *posix_info;
-		u64 time;
-
-		posix_info = (struct smb2_posix_info *)kstat;
-		posix_info->Ignored = 0;
-		posix_info->CreationTime = cpu_to_le64(ksmbd_kstat->create_time);
-		time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->ctime);
-		posix_info->ChangeTime = cpu_to_le64(time);
-		time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->atime);
-		posix_info->LastAccessTime = cpu_to_le64(time);
-		time = ksmbd_UnixTimeToNT(ksmbd_kstat->kstat->mtime);
-		posix_info->LastWriteTime = cpu_to_le64(time);
-		posix_info->EndOfFile = cpu_to_le64(ksmbd_kstat->kstat->size);
-		posix_info->AllocationSize = cpu_to_le64(ksmbd_kstat->kstat->blocks << 9);
-		posix_info->DeviceId = cpu_to_le32(ksmbd_kstat->kstat->rdev);
-		posix_info->HardLinks = cpu_to_le32(ksmbd_kstat->kstat->nlink);
-		posix_info->Mode = cpu_to_le32(ksmbd_kstat->kstat->mode & 0777);
-		posix_info->Inode = cpu_to_le64(ksmbd_kstat->kstat->ino);
-		posix_info->DosAttributes =
-			S_ISDIR(ksmbd_kstat->kstat->mode) ?
-				FILE_ATTRIBUTE_DIRECTORY_LE : FILE_ATTRIBUTE_ARCHIVE_LE;
-		if (d_info->hide_dot_file && d_info->name[0] == '.')
-			posix_info->DosAttributes |= FILE_ATTRIBUTE_HIDDEN_LE;
-		/*
-		 * SidBuffer(32) contain two sids(Domain sid(16), UNIX group sid(16)).
-		 * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) +
-		 *		  sub_auth(4 * 1(num_subauth)) + RID(4).
-		 */
-		id_to_sid(from_kuid_munged(&init_user_ns, ksmbd_kstat->kstat->uid),
-			  SIDUNIX_USER, (struct smb_sid *)&posix_info->SidBuffer[0]);
-		id_to_sid(from_kgid_munged(&init_user_ns, ksmbd_kstat->kstat->gid),
-			  SIDUNIX_GROUP, (struct smb_sid *)&posix_info->SidBuffer[16]);
-		memcpy(posix_info->name, conv_name, conv_len);
-		posix_info->name_len = cpu_to_le32(conv_len);
-		posix_info->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-
-	} /* switch (info_level) */
-
-	d_info->last_entry_offset = d_info->data_count;
-	d_info->data_count += next_entry_offset;
-	d_info->out_buf_len -= next_entry_offset;
-	d_info->wptr += next_entry_offset;
-
-	ksmbd_debug(SMB,
-		    "info_level : %d, buf_len :%d, next_offset : %d, data_count : %d\n",
-		    info_level, d_info->out_buf_len,
-		    next_entry_offset, d_info->data_count);
-
-free_conv_name:
-	kfree(conv_name);
-	return rc;
-}
-
-struct smb2_query_dir_private {
-	struct ksmbd_work	*work;
-	char			*search_pattern;
-	struct ksmbd_file	*dir_fp;
-
-	struct ksmbd_dir_info	*d_info;
-	int			info_level;
-};
-
-static void lock_dir(struct ksmbd_file *dir_fp)
-{
-	struct dentry *dir = dir_fp->filp->f_path.dentry;
-
-	inode_lock_nested(d_inode(dir), I_MUTEX_PARENT);
-}
-
-static void unlock_dir(struct ksmbd_file *dir_fp)
-{
-	struct dentry *dir = dir_fp->filp->f_path.dentry;
-
-	inode_unlock(d_inode(dir));
-}
-
-static int process_query_dir_entries(struct smb2_query_dir_private *priv)
-{
-	struct mnt_idmap	*idmap = file_mnt_idmap(priv->dir_fp->filp);
-	struct kstat		kstat;
-	struct ksmbd_kstat	ksmbd_kstat;
-	int			rc;
-	int			i;
-
-	for (i = 0; i < priv->d_info->num_entry; i++) {
-		struct dentry *dent;
-
-		if (dentry_name(priv->d_info, priv->info_level))
-			return -EINVAL;
-
-		lock_dir(priv->dir_fp);
-		dent = lookup_one(idmap, priv->d_info->name,
-				  priv->dir_fp->filp->f_path.dentry,
-				  priv->d_info->name_len);
-		unlock_dir(priv->dir_fp);
-
-		if (IS_ERR(dent)) {
-			ksmbd_debug(SMB, "Cannot lookup `%s' [%ld]\n",
-				    priv->d_info->name,
-				    PTR_ERR(dent));
-			continue;
-		}
-		if (unlikely(d_is_negative(dent))) {
-			dput(dent);
-			ksmbd_debug(SMB, "Negative dentry `%s'\n",
-				    priv->d_info->name);
-			continue;
-		}
-
-		ksmbd_kstat.kstat = &kstat;
-		if (priv->info_level != FILE_NAMES_INFORMATION)
-			ksmbd_vfs_fill_dentry_attrs(priv->work,
-						    idmap,
-						    dent,
-						    &ksmbd_kstat);
-
-		rc = smb2_populate_readdir_entry(priv->work->conn,
-						 priv->info_level,
-						 priv->d_info,
-						 &ksmbd_kstat);
-		dput(dent);
-		if (rc)
-			return rc;
-	}
-	return 0;
-}
-
-static int reserve_populate_dentry(struct ksmbd_dir_info *d_info,
-				   int info_level)
-{
-	int struct_sz;
-	int conv_len;
-	int next_entry_offset;
-
-	struct_sz = readdir_info_level_struct_sz(info_level);
-	if (struct_sz == -EOPNOTSUPP)
-		return -EOPNOTSUPP;
-
-	conv_len = (d_info->name_len + 1) * 2;
-	next_entry_offset = ALIGN(struct_sz + conv_len,
-				  KSMBD_DIR_INFO_ALIGNMENT);
-
-	if (next_entry_offset > d_info->out_buf_len) {
-		d_info->out_buf_len = 0;
-		return -ENOSPC;
-	}
-
-	switch (info_level) {
-	case FILE_FULL_DIRECTORY_INFORMATION:
-	{
-		struct file_full_directory_info *ffdinfo;
-
-		ffdinfo = (struct file_full_directory_info *)d_info->wptr;
-		memcpy(ffdinfo->FileName, d_info->name, d_info->name_len);
-		ffdinfo->FileName[d_info->name_len] = 0x00;
-		ffdinfo->FileNameLength = cpu_to_le32(d_info->name_len);
-		ffdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILE_BOTH_DIRECTORY_INFORMATION:
-	{
-		struct file_both_directory_info *fbdinfo;
-
-		fbdinfo = (struct file_both_directory_info *)d_info->wptr;
-		memcpy(fbdinfo->FileName, d_info->name, d_info->name_len);
-		fbdinfo->FileName[d_info->name_len] = 0x00;
-		fbdinfo->FileNameLength = cpu_to_le32(d_info->name_len);
-		fbdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILE_DIRECTORY_INFORMATION:
-	{
-		struct file_directory_info *fdinfo;
-
-		fdinfo = (struct file_directory_info *)d_info->wptr;
-		memcpy(fdinfo->FileName, d_info->name, d_info->name_len);
-		fdinfo->FileName[d_info->name_len] = 0x00;
-		fdinfo->FileNameLength = cpu_to_le32(d_info->name_len);
-		fdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILE_NAMES_INFORMATION:
-	{
-		struct file_names_info *fninfo;
-
-		fninfo = (struct file_names_info *)d_info->wptr;
-		memcpy(fninfo->FileName, d_info->name, d_info->name_len);
-		fninfo->FileName[d_info->name_len] = 0x00;
-		fninfo->FileNameLength = cpu_to_le32(d_info->name_len);
-		fninfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILEID_FULL_DIRECTORY_INFORMATION:
-	{
-		struct file_id_full_dir_info *dinfo;
-
-		dinfo = (struct file_id_full_dir_info *)d_info->wptr;
-		memcpy(dinfo->FileName, d_info->name, d_info->name_len);
-		dinfo->FileName[d_info->name_len] = 0x00;
-		dinfo->FileNameLength = cpu_to_le32(d_info->name_len);
-		dinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case FILEID_BOTH_DIRECTORY_INFORMATION:
-	{
-		struct file_id_both_directory_info *fibdinfo;
-
-		fibdinfo = (struct file_id_both_directory_info *)d_info->wptr;
-		memcpy(fibdinfo->FileName, d_info->name, d_info->name_len);
-		fibdinfo->FileName[d_info->name_len] = 0x00;
-		fibdinfo->FileNameLength = cpu_to_le32(d_info->name_len);
-		fibdinfo->NextEntryOffset = cpu_to_le32(next_entry_offset);
-		break;
-	}
-	case SMB_FIND_FILE_POSIX_INFO:
-	{
-		struct smb2_posix_info *posix_info;
-
-		posix_info = (struct smb2_posix_info *)d_info->wptr;
-		memcpy(posix_info->name, d_info->name, d_info->name_len);
-		posix_info->name[d_info->name_len] = 0x00;
-		posix_info->name_len = cpu_to_le32(d_info->name_len);
-		posix_info->NextEntryOffset =
-			cpu_to_le32(next_entry_offset);
-		break;
-	}
-	} /* switch (info_level) */
-
-	d_info->num_entry++;
-	d_info->out_buf_len -= next_entry_offset;
-	d_info->wptr += next_entry_offset;
-	return 0;
-}
-
-static bool __query_dir(struct dir_context *ctx, const char *name, int namlen,
-		       loff_t offset, u64 ino, unsigned int d_type)
-{
-	struct ksmbd_readdir_data	*buf;
-	struct smb2_query_dir_private	*priv;
-	struct ksmbd_dir_info		*d_info;
-	int				rc;
-
-	buf	= container_of(ctx, struct ksmbd_readdir_data, ctx);
-	priv	= buf->private;
-	d_info	= priv->d_info;
-
-	/* dot and dotdot entries are already reserved */
-	if (!strcmp(".", name) || !strcmp("..", name))
-		return true;
-	if (ksmbd_share_veto_filename(priv->work->tcon->share_conf, name))
-		return true;
-	if (!match_pattern(name, namlen, priv->search_pattern))
-		return true;
-
-	d_info->name		= name;
-	d_info->name_len	= namlen;
-	rc = reserve_populate_dentry(d_info, priv->info_level);
-	if (rc)
-		return false;
-	if (d_info->flags & SMB2_RETURN_SINGLE_ENTRY)
-		d_info->out_buf_len = 0;
-	return true;
-}
-
-static int verify_info_level(int info_level)
-{
-	switch (info_level) {
-	case FILE_FULL_DIRECTORY_INFORMATION:
-	case FILE_BOTH_DIRECTORY_INFORMATION:
-	case FILE_DIRECTORY_INFORMATION:
-	case FILE_NAMES_INFORMATION:
-	case FILEID_FULL_DIRECTORY_INFORMATION:
-	case FILEID_BOTH_DIRECTORY_INFORMATION:
-	case SMB_FIND_FILE_POSIX_INFO:
-		break;
-	default:
-		return -EOPNOTSUPP;
-	}
-
-	return 0;
-}
-
-static int smb2_resp_buf_len(struct ksmbd_work *work, unsigned short hdr2_len)
-{
-	int free_len;
-
-	free_len = (int)(work->response_sz -
-		(get_rfc1002_len(work->response_buf) + 4)) - hdr2_len;
-	return free_len;
-}
-
-static int smb2_calc_max_out_buf_len(struct ksmbd_work *work,
-				     unsigned short hdr2_len,
-				     unsigned int out_buf_len)
-{
-	int free_len;
-
-	if (out_buf_len > work->conn->vals->max_trans_size)
-		return -EINVAL;
-
-	free_len = smb2_resp_buf_len(work, hdr2_len);
-	if (free_len < 0)
-		return -EINVAL;
-
-	return min_t(int, out_buf_len, free_len);
-}
-
-int smb2_query_dir(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_query_directory_req *req;
-	struct smb2_query_directory_rsp *rsp;
-	struct ksmbd_share_config *share = work->tcon->share_conf;
-	struct ksmbd_file *dir_fp = NULL;
-	struct ksmbd_dir_info d_info;
-	int rc = 0;
-	char *srch_ptr = NULL;
-	unsigned char srch_flag;
-	int buffer_sz;
-	struct smb2_query_dir_private query_dir_private = {NULL, };
-
-	WORK_BUFFERS(work, req, rsp);
-
-	if (ksmbd_override_fsids(work)) {
-		rsp->hdr.Status = STATUS_NO_MEMORY;
-		smb2_set_err_rsp(work);
-		return -ENOMEM;
-	}
-
-	rc = verify_info_level(req->FileInformationClass);
-	if (rc) {
-		rc = -EFAULT;
-		goto err_out2;
-	}
-
-	dir_fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId);
-	if (!dir_fp) {
-		rc = -EBADF;
-		goto err_out2;
-	}
-
-	if (!(dir_fp->daccess & FILE_LIST_DIRECTORY_LE) ||
-	    inode_permission(file_mnt_idmap(dir_fp->filp),
-			     file_inode(dir_fp->filp),
-			     MAY_READ | MAY_EXEC)) {
-		pr_err("no right to enumerate directory (%pD)\n", dir_fp->filp);
-		rc = -EACCES;
-		goto err_out2;
-	}
-
-	if (!S_ISDIR(file_inode(dir_fp->filp)->i_mode)) {
-		pr_err("can't do query dir for a file\n");
-		rc = -EINVAL;
-		goto err_out2;
-	}
-
-	srch_flag = req->Flags;
-	srch_ptr = smb_strndup_from_utf16(req->Buffer,
-					  le16_to_cpu(req->FileNameLength), 1,
-					  conn->local_nls);
-	if (IS_ERR(srch_ptr)) {
-		ksmbd_debug(SMB, "Search Pattern not found\n");
-		rc = -EINVAL;
-		goto err_out2;
-	} else {
-		ksmbd_debug(SMB, "Search pattern is %s\n", srch_ptr);
-	}
-
-	if (srch_flag & SMB2_REOPEN || srch_flag & SMB2_RESTART_SCANS) {
-		ksmbd_debug(SMB, "Restart directory scan\n");
-		generic_file_llseek(dir_fp->filp, 0, SEEK_SET);
-	}
-
-	memset(&d_info, 0, sizeof(struct ksmbd_dir_info));
-	d_info.wptr = (char *)rsp->Buffer;
-	d_info.rptr = (char *)rsp->Buffer;
-	d_info.out_buf_len =
-		smb2_calc_max_out_buf_len(work, 8,
-					  le32_to_cpu(req->OutputBufferLength));
-	if (d_info.out_buf_len < 0) {
-		rc = -EINVAL;
-		goto err_out;
-	}
-	d_info.flags = srch_flag;
-
-	/*
-	 * reserve dot and dotdot entries in head of buffer
-	 * in first response
-	 */
-	rc = ksmbd_populate_dot_dotdot_entries(work, req->FileInformationClass,
-					       dir_fp, &d_info, srch_ptr,
-					       smb2_populate_readdir_entry);
-	if (rc == -ENOSPC)
-		rc = 0;
-	else if (rc)
-		goto err_out;
-
-	if (test_share_config_flag(share, KSMBD_SHARE_FLAG_HIDE_DOT_FILES))
-		d_info.hide_dot_file = true;
-
-	buffer_sz				= d_info.out_buf_len;
-	d_info.rptr				= d_info.wptr;
-	query_dir_private.work			= work;
-	query_dir_private.search_pattern	= srch_ptr;
-	query_dir_private.dir_fp		= dir_fp;
-	query_dir_private.d_info		= &d_info;
-	query_dir_private.info_level		= req->FileInformationClass;
-	dir_fp->readdir_data.private		= &query_dir_private;
-	set_ctx_actor(&dir_fp->readdir_data.ctx, __query_dir);
-
-	rc = iterate_dir(dir_fp->filp, &dir_fp->readdir_data.ctx);
-	/*
-	 * req->OutputBufferLength is too small to contain even one entry.
-	 * In this case, it immediately returns OutputBufferLength 0 to client.
-	 */
-	if (!d_info.out_buf_len && !d_info.num_entry)
-		goto no_buf_len;
-	if (rc > 0 || rc == -ENOSPC)
-		rc = 0;
-	else if (rc)
-		goto err_out;
-
-	d_info.wptr = d_info.rptr;
-	d_info.out_buf_len = buffer_sz;
-	rc = process_query_dir_entries(&query_dir_private);
-	if (rc)
-		goto err_out;
-
-	if (!d_info.data_count && d_info.out_buf_len >= 0) {
-		if (srch_flag & SMB2_RETURN_SINGLE_ENTRY && !is_asterisk(srch_ptr)) {
-			rsp->hdr.Status = STATUS_NO_SUCH_FILE;
-		} else {
-			dir_fp->dot_dotdot[0] = dir_fp->dot_dotdot[1] = 0;
-			rsp->hdr.Status = STATUS_NO_MORE_FILES;
-		}
-		rsp->StructureSize = cpu_to_le16(9);
-		rsp->OutputBufferOffset = cpu_to_le16(0);
-		rsp->OutputBufferLength = cpu_to_le32(0);
-		rsp->Buffer[0] = 0;
-		inc_rfc1001_len(work->response_buf, 9);
-	} else {
-no_buf_len:
-		((struct file_directory_info *)
-		((char *)rsp->Buffer + d_info.last_entry_offset))
-		->NextEntryOffset = 0;
-		if (d_info.data_count >= d_info.last_entry_off_align)
-			d_info.data_count -= d_info.last_entry_off_align;
-
-		rsp->StructureSize = cpu_to_le16(9);
-		rsp->OutputBufferOffset = cpu_to_le16(72);
-		rsp->OutputBufferLength = cpu_to_le32(d_info.data_count);
-		inc_rfc1001_len(work->response_buf, 8 + d_info.data_count);
-	}
-
-	kfree(srch_ptr);
-	ksmbd_fd_put(work, dir_fp);
-	ksmbd_revert_fsids(work);
-	return 0;
-
-err_out:
-	pr_err("error while processing smb2 query dir rc = %d\n", rc);
-	kfree(srch_ptr);
-
-err_out2:
-	if (rc == -EINVAL)
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-	else if (rc == -EACCES)
-		rsp->hdr.Status = STATUS_ACCESS_DENIED;
-	else if (rc == -ENOENT)
-		rsp->hdr.Status = STATUS_NO_SUCH_FILE;
-	else if (rc == -EBADF)
-		rsp->hdr.Status = STATUS_FILE_CLOSED;
-	else if (rc == -ENOMEM)
-		rsp->hdr.Status = STATUS_NO_MEMORY;
-	else if (rc == -EFAULT)
-		rsp->hdr.Status = STATUS_INVALID_INFO_CLASS;
-	else if (rc == -EIO)
-		rsp->hdr.Status = STATUS_FILE_CORRUPT_ERROR;
-	if (!rsp->hdr.Status)
-		rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR;
-
-	smb2_set_err_rsp(work);
-	ksmbd_fd_put(work, dir_fp);
-	ksmbd_revert_fsids(work);
-	return 0;
-}
-
-/**
- * buffer_check_err() - helper function to check buffer errors
- * @reqOutputBufferLength:	max buffer length expected in command response
- * @rsp:		query info response buffer contains output buffer length
- * @rsp_org:		base response buffer pointer in case of chained response
- * @infoclass_size:	query info class response buffer size
- *
- * Return:	0 on success, otherwise error
- */
-static int buffer_check_err(int reqOutputBufferLength,
-			    struct smb2_query_info_rsp *rsp,
-			    void *rsp_org, int infoclass_size)
-{
-	if (reqOutputBufferLength < le32_to_cpu(rsp->OutputBufferLength)) {
-		if (reqOutputBufferLength < infoclass_size) {
-			pr_err("Invalid Buffer Size Requested\n");
-			rsp->hdr.Status = STATUS_INFO_LENGTH_MISMATCH;
-			*(__be32 *)rsp_org = cpu_to_be32(sizeof(struct smb2_hdr));
-			return -EINVAL;
-		}
-
-		ksmbd_debug(SMB, "Buffer Overflow\n");
-		rsp->hdr.Status = STATUS_BUFFER_OVERFLOW;
-		*(__be32 *)rsp_org = cpu_to_be32(sizeof(struct smb2_hdr) +
-				reqOutputBufferLength);
-		rsp->OutputBufferLength = cpu_to_le32(reqOutputBufferLength);
-	}
-	return 0;
-}
-
-static void get_standard_info_pipe(struct smb2_query_info_rsp *rsp,
-				   void *rsp_org)
-{
-	struct smb2_file_standard_info *sinfo;
-
-	sinfo = (struct smb2_file_standard_info *)rsp->Buffer;
-
-	sinfo->AllocationSize = cpu_to_le64(4096);
-	sinfo->EndOfFile = cpu_to_le64(0);
-	sinfo->NumberOfLinks = cpu_to_le32(1);
-	sinfo->DeletePending = 1;
-	sinfo->Directory = 0;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_standard_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_standard_info));
-}
-
-static void get_internal_info_pipe(struct smb2_query_info_rsp *rsp, u64 num,
-				   void *rsp_org)
-{
-	struct smb2_file_internal_info *file_info;
-
-	file_info = (struct smb2_file_internal_info *)rsp->Buffer;
-
-	/* any unique number */
-	file_info->IndexNumber = cpu_to_le64(num | (1ULL << 63));
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_internal_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_internal_info));
-}
-
-static int smb2_get_info_file_pipe(struct ksmbd_session *sess,
-				   struct smb2_query_info_req *req,
-				   struct smb2_query_info_rsp *rsp,
-				   void *rsp_org)
-{
-	u64 id;
-	int rc;
-
-	/*
-	 * Windows can sometime send query file info request on
-	 * pipe without opening it, checking error condition here
-	 */
-	id = req->VolatileFileId;
-	if (!ksmbd_session_rpc_method(sess, id))
-		return -ENOENT;
-
-	ksmbd_debug(SMB, "FileInfoClass %u, FileId 0x%llx\n",
-		    req->FileInfoClass, req->VolatileFileId);
-
-	switch (req->FileInfoClass) {
-	case FILE_STANDARD_INFORMATION:
-		get_standard_info_pipe(rsp, rsp_org);
-		rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
-				      rsp, rsp_org,
-				      FILE_STANDARD_INFORMATION_SIZE);
-		break;
-	case FILE_INTERNAL_INFORMATION:
-		get_internal_info_pipe(rsp, id, rsp_org);
-		rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
-				      rsp, rsp_org,
-				      FILE_INTERNAL_INFORMATION_SIZE);
-		break;
-	default:
-		ksmbd_debug(SMB, "smb2_info_file_pipe for %u not supported\n",
-			    req->FileInfoClass);
-		rc = -EOPNOTSUPP;
-	}
-	return rc;
-}
-
-/**
- * smb2_get_ea() - handler for smb2 get extended attribute command
- * @work:	smb work containing query info command buffer
- * @fp:		ksmbd_file pointer
- * @req:	get extended attribute request
- * @rsp:	response buffer pointer
- * @rsp_org:	base response buffer pointer in case of chained response
- *
- * Return:	0 on success, otherwise error
- */
-static int smb2_get_ea(struct ksmbd_work *work, struct ksmbd_file *fp,
-		       struct smb2_query_info_req *req,
-		       struct smb2_query_info_rsp *rsp, void *rsp_org)
-{
-	struct smb2_ea_info *eainfo, *prev_eainfo;
-	char *name, *ptr, *xattr_list = NULL, *buf;
-	int rc, name_len, value_len, xattr_list_len, idx;
-	ssize_t buf_free_len, alignment_bytes, next_offset, rsp_data_cnt = 0;
-	struct smb2_ea_info_req *ea_req = NULL;
-	const struct path *path;
-	struct mnt_idmap *idmap = file_mnt_idmap(fp->filp);
-
-	if (!(fp->daccess & FILE_READ_EA_LE)) {
-		pr_err("Not permitted to read ext attr : 0x%x\n",
-		       fp->daccess);
-		return -EACCES;
-	}
-
-	path = &fp->filp->f_path;
-	/* single EA entry is requested with given user.* name */
-	if (req->InputBufferLength) {
-		if (le32_to_cpu(req->InputBufferLength) <
-		    sizeof(struct smb2_ea_info_req))
-			return -EINVAL;
-
-		ea_req = (struct smb2_ea_info_req *)req->Buffer;
-	} else {
-		/* need to send all EAs, if no specific EA is requested*/
-		if (le32_to_cpu(req->Flags) & SL_RETURN_SINGLE_ENTRY)
-			ksmbd_debug(SMB,
-				    "All EAs are requested but need to send single EA entry in rsp flags 0x%x\n",
-				    le32_to_cpu(req->Flags));
-	}
-
-	buf_free_len =
-		smb2_calc_max_out_buf_len(work, 8,
-					  le32_to_cpu(req->OutputBufferLength));
-	if (buf_free_len < 0)
-		return -EINVAL;
-
-	rc = ksmbd_vfs_listxattr(path->dentry, &xattr_list);
-	if (rc < 0) {
-		rsp->hdr.Status = STATUS_INVALID_HANDLE;
-		goto out;
-	} else if (!rc) { /* there is no EA in the file */
-		ksmbd_debug(SMB, "no ea data in the file\n");
-		goto done;
-	}
-	xattr_list_len = rc;
-
-	ptr = (char *)rsp->Buffer;
-	eainfo = (struct smb2_ea_info *)ptr;
-	prev_eainfo = eainfo;
-	idx = 0;
-
-	while (idx < xattr_list_len) {
-		name = xattr_list + idx;
-		name_len = strlen(name);
-
-		ksmbd_debug(SMB, "%s, len %d\n", name, name_len);
-		idx += name_len + 1;
-
-		/*
-		 * CIFS does not support EA other than user.* namespace,
-		 * still keep the framework generic, to list other attrs
-		 * in future.
-		 */
-		if (strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN))
-			continue;
-
-		if (!strncmp(&name[XATTR_USER_PREFIX_LEN], STREAM_PREFIX,
-			     STREAM_PREFIX_LEN))
-			continue;
-
-		if (req->InputBufferLength &&
-		    strncmp(&name[XATTR_USER_PREFIX_LEN], ea_req->name,
-			    ea_req->EaNameLength))
-			continue;
-
-		if (!strncmp(&name[XATTR_USER_PREFIX_LEN],
-			     DOS_ATTRIBUTE_PREFIX, DOS_ATTRIBUTE_PREFIX_LEN))
-			continue;
-
-		if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN))
-			name_len -= XATTR_USER_PREFIX_LEN;
-
-		ptr = (char *)(&eainfo->name + name_len + 1);
-		buf_free_len -= (offsetof(struct smb2_ea_info, name) +
-				name_len + 1);
-		/* bailout if xattr can't fit in buf_free_len */
-		value_len = ksmbd_vfs_getxattr(idmap, path->dentry,
-					       name, &buf);
-		if (value_len <= 0) {
-			rc = -ENOENT;
-			rsp->hdr.Status = STATUS_INVALID_HANDLE;
-			goto out;
-		}
-
-		buf_free_len -= value_len;
-		if (buf_free_len < 0) {
-			kfree(buf);
-			break;
-		}
-
-		memcpy(ptr, buf, value_len);
-		kfree(buf);
-
-		ptr += value_len;
-		eainfo->Flags = 0;
-		eainfo->EaNameLength = name_len;
-
-		if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN))
-			memcpy(eainfo->name, &name[XATTR_USER_PREFIX_LEN],
-			       name_len);
-		else
-			memcpy(eainfo->name, name, name_len);
-
-		eainfo->name[name_len] = '\0';
-		eainfo->EaValueLength = cpu_to_le16(value_len);
-		next_offset = offsetof(struct smb2_ea_info, name) +
-			name_len + 1 + value_len;
-
-		/* align next xattr entry at 4 byte bundary */
-		alignment_bytes = ((next_offset + 3) & ~3) - next_offset;
-		if (alignment_bytes) {
-			memset(ptr, '\0', alignment_bytes);
-			ptr += alignment_bytes;
-			next_offset += alignment_bytes;
-			buf_free_len -= alignment_bytes;
-		}
-		eainfo->NextEntryOffset = cpu_to_le32(next_offset);
-		prev_eainfo = eainfo;
-		eainfo = (struct smb2_ea_info *)ptr;
-		rsp_data_cnt += next_offset;
-
-		if (req->InputBufferLength) {
-			ksmbd_debug(SMB, "single entry requested\n");
-			break;
-		}
-	}
-
-	/* no more ea entries */
-	prev_eainfo->NextEntryOffset = 0;
-done:
-	rc = 0;
-	if (rsp_data_cnt == 0)
-		rsp->hdr.Status = STATUS_NO_EAS_ON_FILE;
-	rsp->OutputBufferLength = cpu_to_le32(rsp_data_cnt);
-	inc_rfc1001_len(rsp_org, rsp_data_cnt);
-out:
-	kvfree(xattr_list);
-	return rc;
-}
-
-static void get_file_access_info(struct smb2_query_info_rsp *rsp,
-				 struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_access_info *file_info;
-
-	file_info = (struct smb2_file_access_info *)rsp->Buffer;
-	file_info->AccessFlags = fp->daccess;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_access_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_access_info));
-}
-
-static int get_file_basic_info(struct smb2_query_info_rsp *rsp,
-			       struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_basic_info *basic_info;
-	struct kstat stat;
-	u64 time;
-
-	if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) {
-		pr_err("no right to read the attributes : 0x%x\n",
-		       fp->daccess);
-		return -EACCES;
-	}
-
-	basic_info = (struct smb2_file_basic_info *)rsp->Buffer;
-	generic_fillattr(file_mnt_idmap(fp->filp), file_inode(fp->filp),
-			 &stat);
-	basic_info->CreationTime = cpu_to_le64(fp->create_time);
-	time = ksmbd_UnixTimeToNT(stat.atime);
-	basic_info->LastAccessTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.mtime);
-	basic_info->LastWriteTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.ctime);
-	basic_info->ChangeTime = cpu_to_le64(time);
-	basic_info->Attributes = fp->f_ci->m_fattr;
-	basic_info->Pad1 = 0;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_basic_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_basic_info));
-	return 0;
-}
-
-static unsigned long long get_allocation_size(struct inode *inode,
-					      struct kstat *stat)
-{
-	unsigned long long alloc_size = 0;
-
-	if (!S_ISDIR(stat->mode)) {
-		if ((inode->i_blocks << 9) <= stat->size)
-			alloc_size = stat->size;
-		else
-			alloc_size = inode->i_blocks << 9;
-	}
-
-	return alloc_size;
-}
-
-static void get_file_standard_info(struct smb2_query_info_rsp *rsp,
-				   struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_standard_info *sinfo;
-	unsigned int delete_pending;
-	struct inode *inode;
-	struct kstat stat;
-
-	inode = file_inode(fp->filp);
-	generic_fillattr(file_mnt_idmap(fp->filp), inode, &stat);
-
-	sinfo = (struct smb2_file_standard_info *)rsp->Buffer;
-	delete_pending = ksmbd_inode_pending_delete(fp);
-
-	sinfo->AllocationSize = cpu_to_le64(get_allocation_size(inode, &stat));
-	sinfo->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size);
-	sinfo->NumberOfLinks = cpu_to_le32(get_nlink(&stat) - delete_pending);
-	sinfo->DeletePending = delete_pending;
-	sinfo->Directory = S_ISDIR(stat.mode) ? 1 : 0;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_standard_info));
-	inc_rfc1001_len(rsp_org,
-			sizeof(struct smb2_file_standard_info));
-}
-
-static void get_file_alignment_info(struct smb2_query_info_rsp *rsp,
-				    void *rsp_org)
-{
-	struct smb2_file_alignment_info *file_info;
-
-	file_info = (struct smb2_file_alignment_info *)rsp->Buffer;
-	file_info->AlignmentRequirement = 0;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_alignment_info));
-	inc_rfc1001_len(rsp_org,
-			sizeof(struct smb2_file_alignment_info));
-}
-
-static int get_file_all_info(struct ksmbd_work *work,
-			     struct smb2_query_info_rsp *rsp,
-			     struct ksmbd_file *fp,
-			     void *rsp_org)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_file_all_info *file_info;
-	unsigned int delete_pending;
-	struct inode *inode;
-	struct kstat stat;
-	int conv_len;
-	char *filename;
-	u64 time;
-
-	if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) {
-		ksmbd_debug(SMB, "no right to read the attributes : 0x%x\n",
-			    fp->daccess);
-		return -EACCES;
-	}
-
-	filename = convert_to_nt_pathname(work->tcon->share_conf, &fp->filp->f_path);
-	if (IS_ERR(filename))
-		return PTR_ERR(filename);
-
-	inode = file_inode(fp->filp);
-	generic_fillattr(file_mnt_idmap(fp->filp), inode, &stat);
-
-	ksmbd_debug(SMB, "filename = %s\n", filename);
-	delete_pending = ksmbd_inode_pending_delete(fp);
-	file_info = (struct smb2_file_all_info *)rsp->Buffer;
-
-	file_info->CreationTime = cpu_to_le64(fp->create_time);
-	time = ksmbd_UnixTimeToNT(stat.atime);
-	file_info->LastAccessTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.mtime);
-	file_info->LastWriteTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.ctime);
-	file_info->ChangeTime = cpu_to_le64(time);
-	file_info->Attributes = fp->f_ci->m_fattr;
-	file_info->Pad1 = 0;
-	file_info->AllocationSize =
-		cpu_to_le64(get_allocation_size(inode, &stat));
-	file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size);
-	file_info->NumberOfLinks =
-			cpu_to_le32(get_nlink(&stat) - delete_pending);
-	file_info->DeletePending = delete_pending;
-	file_info->Directory = S_ISDIR(stat.mode) ? 1 : 0;
-	file_info->Pad2 = 0;
-	file_info->IndexNumber = cpu_to_le64(stat.ino);
-	file_info->EASize = 0;
-	file_info->AccessFlags = fp->daccess;
-	file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos);
-	file_info->Mode = fp->coption;
-	file_info->AlignmentRequirement = 0;
-	conv_len = smbConvertToUTF16((__le16 *)file_info->FileName, filename,
-				     PATH_MAX, conn->local_nls, 0);
-	conv_len *= 2;
-	file_info->FileNameLength = cpu_to_le32(conv_len);
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_all_info) + conv_len - 1);
-	kfree(filename);
-	inc_rfc1001_len(rsp_org, le32_to_cpu(rsp->OutputBufferLength));
-	return 0;
-}
-
-static void get_file_alternate_info(struct ksmbd_work *work,
-				    struct smb2_query_info_rsp *rsp,
-				    struct ksmbd_file *fp,
-				    void *rsp_org)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_file_alt_name_info *file_info;
-	struct dentry *dentry = fp->filp->f_path.dentry;
-	int conv_len;
-
-	spin_lock(&dentry->d_lock);
-	file_info = (struct smb2_file_alt_name_info *)rsp->Buffer;
-	conv_len = ksmbd_extract_shortname(conn,
-					   dentry->d_name.name,
-					   file_info->FileName);
-	spin_unlock(&dentry->d_lock);
-	file_info->FileNameLength = cpu_to_le32(conv_len);
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_alt_name_info) + conv_len);
-	inc_rfc1001_len(rsp_org, le32_to_cpu(rsp->OutputBufferLength));
-}
-
-static void get_file_stream_info(struct ksmbd_work *work,
-				 struct smb2_query_info_rsp *rsp,
-				 struct ksmbd_file *fp,
-				 void *rsp_org)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_file_stream_info *file_info;
-	char *stream_name, *xattr_list = NULL, *stream_buf;
-	struct kstat stat;
-	const struct path *path = &fp->filp->f_path;
-	ssize_t xattr_list_len;
-	int nbytes = 0, streamlen, stream_name_len, next, idx = 0;
-	int buf_free_len;
-	struct smb2_query_info_req *req = ksmbd_req_buf_next(work);
-
-	generic_fillattr(file_mnt_idmap(fp->filp), file_inode(fp->filp),
-			 &stat);
-	file_info = (struct smb2_file_stream_info *)rsp->Buffer;
-
-	buf_free_len =
-		smb2_calc_max_out_buf_len(work, 8,
-					  le32_to_cpu(req->OutputBufferLength));
-	if (buf_free_len < 0)
-		goto out;
-
-	xattr_list_len = ksmbd_vfs_listxattr(path->dentry, &xattr_list);
-	if (xattr_list_len < 0) {
-		goto out;
-	} else if (!xattr_list_len) {
-		ksmbd_debug(SMB, "empty xattr in the file\n");
-		goto out;
-	}
-
-	while (idx < xattr_list_len) {
-		stream_name = xattr_list + idx;
-		streamlen = strlen(stream_name);
-		idx += streamlen + 1;
-
-		ksmbd_debug(SMB, "%s, len %d\n", stream_name, streamlen);
-
-		if (strncmp(&stream_name[XATTR_USER_PREFIX_LEN],
-			    STREAM_PREFIX, STREAM_PREFIX_LEN))
-			continue;
-
-		stream_name_len = streamlen - (XATTR_USER_PREFIX_LEN +
-				STREAM_PREFIX_LEN);
-		streamlen = stream_name_len;
-
-		/* plus : size */
-		streamlen += 1;
-		stream_buf = kmalloc(streamlen + 1, GFP_KERNEL);
-		if (!stream_buf)
-			break;
-
-		streamlen = snprintf(stream_buf, streamlen + 1,
-				     ":%s", &stream_name[XATTR_NAME_STREAM_LEN]);
-
-		next = sizeof(struct smb2_file_stream_info) + streamlen * 2;
-		if (next > buf_free_len) {
-			kfree(stream_buf);
-			break;
-		}
-
-		file_info = (struct smb2_file_stream_info *)&rsp->Buffer[nbytes];
-		streamlen  = smbConvertToUTF16((__le16 *)file_info->StreamName,
-					       stream_buf, streamlen,
-					       conn->local_nls, 0);
-		streamlen *= 2;
-		kfree(stream_buf);
-		file_info->StreamNameLength = cpu_to_le32(streamlen);
-		file_info->StreamSize = cpu_to_le64(stream_name_len);
-		file_info->StreamAllocationSize = cpu_to_le64(stream_name_len);
-
-		nbytes += next;
-		buf_free_len -= next;
-		file_info->NextEntryOffset = cpu_to_le32(next);
-	}
-
-out:
-	if (!S_ISDIR(stat.mode) &&
-	    buf_free_len >= sizeof(struct smb2_file_stream_info) + 7 * 2) {
-		file_info = (struct smb2_file_stream_info *)
-			&rsp->Buffer[nbytes];
-		streamlen = smbConvertToUTF16((__le16 *)file_info->StreamName,
-					      "::$DATA", 7, conn->local_nls, 0);
-		streamlen *= 2;
-		file_info->StreamNameLength = cpu_to_le32(streamlen);
-		file_info->StreamSize = cpu_to_le64(stat.size);
-		file_info->StreamAllocationSize = cpu_to_le64(stat.blocks << 9);
-		nbytes += sizeof(struct smb2_file_stream_info) + streamlen;
-	}
-
-	/* last entry offset should be 0 */
-	file_info->NextEntryOffset = 0;
-	kvfree(xattr_list);
-
-	rsp->OutputBufferLength = cpu_to_le32(nbytes);
-	inc_rfc1001_len(rsp_org, nbytes);
-}
-
-static void get_file_internal_info(struct smb2_query_info_rsp *rsp,
-				   struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_internal_info *file_info;
-	struct kstat stat;
-
-	generic_fillattr(file_mnt_idmap(fp->filp), file_inode(fp->filp),
-			 &stat);
-	file_info = (struct smb2_file_internal_info *)rsp->Buffer;
-	file_info->IndexNumber = cpu_to_le64(stat.ino);
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_internal_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_internal_info));
-}
-
-static int get_file_network_open_info(struct smb2_query_info_rsp *rsp,
-				      struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_ntwrk_info *file_info;
-	struct inode *inode;
-	struct kstat stat;
-	u64 time;
-
-	if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) {
-		pr_err("no right to read the attributes : 0x%x\n",
-		       fp->daccess);
-		return -EACCES;
-	}
-
-	file_info = (struct smb2_file_ntwrk_info *)rsp->Buffer;
-
-	inode = file_inode(fp->filp);
-	generic_fillattr(file_mnt_idmap(fp->filp), inode, &stat);
-
-	file_info->CreationTime = cpu_to_le64(fp->create_time);
-	time = ksmbd_UnixTimeToNT(stat.atime);
-	file_info->LastAccessTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.mtime);
-	file_info->LastWriteTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(stat.ctime);
-	file_info->ChangeTime = cpu_to_le64(time);
-	file_info->Attributes = fp->f_ci->m_fattr;
-	file_info->AllocationSize =
-		cpu_to_le64(get_allocation_size(inode, &stat));
-	file_info->EndOfFile = S_ISDIR(stat.mode) ? 0 : cpu_to_le64(stat.size);
-	file_info->Reserved = cpu_to_le32(0);
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_ntwrk_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_ntwrk_info));
-	return 0;
-}
-
-static void get_file_ea_info(struct smb2_query_info_rsp *rsp, void *rsp_org)
-{
-	struct smb2_file_ea_info *file_info;
-
-	file_info = (struct smb2_file_ea_info *)rsp->Buffer;
-	file_info->EASize = 0;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_ea_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_ea_info));
-}
-
-static void get_file_position_info(struct smb2_query_info_rsp *rsp,
-				   struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_pos_info *file_info;
-
-	file_info = (struct smb2_file_pos_info *)rsp->Buffer;
-	file_info->CurrentByteOffset = cpu_to_le64(fp->filp->f_pos);
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_pos_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_pos_info));
-}
-
-static void get_file_mode_info(struct smb2_query_info_rsp *rsp,
-			       struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_mode_info *file_info;
-
-	file_info = (struct smb2_file_mode_info *)rsp->Buffer;
-	file_info->Mode = fp->coption & FILE_MODE_INFO_MASK;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_mode_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_mode_info));
-}
-
-static void get_file_compression_info(struct smb2_query_info_rsp *rsp,
-				      struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_comp_info *file_info;
-	struct kstat stat;
-
-	generic_fillattr(file_mnt_idmap(fp->filp), file_inode(fp->filp),
-			 &stat);
-
-	file_info = (struct smb2_file_comp_info *)rsp->Buffer;
-	file_info->CompressedFileSize = cpu_to_le64(stat.blocks << 9);
-	file_info->CompressionFormat = COMPRESSION_FORMAT_NONE;
-	file_info->CompressionUnitShift = 0;
-	file_info->ChunkShift = 0;
-	file_info->ClusterShift = 0;
-	memset(&file_info->Reserved[0], 0, 3);
-
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_comp_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_comp_info));
-}
-
-static int get_file_attribute_tag_info(struct smb2_query_info_rsp *rsp,
-				       struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb2_file_attr_tag_info *file_info;
-
-	if (!(fp->daccess & FILE_READ_ATTRIBUTES_LE)) {
-		pr_err("no right to read the attributes : 0x%x\n",
-		       fp->daccess);
-		return -EACCES;
-	}
-
-	file_info = (struct smb2_file_attr_tag_info *)rsp->Buffer;
-	file_info->FileAttributes = fp->f_ci->m_fattr;
-	file_info->ReparseTag = 0;
-	rsp->OutputBufferLength =
-		cpu_to_le32(sizeof(struct smb2_file_attr_tag_info));
-	inc_rfc1001_len(rsp_org, sizeof(struct smb2_file_attr_tag_info));
-	return 0;
-}
-
-static int find_file_posix_info(struct smb2_query_info_rsp *rsp,
-				struct ksmbd_file *fp, void *rsp_org)
-{
-	struct smb311_posix_qinfo *file_info;
-	struct inode *inode = file_inode(fp->filp);
-	struct mnt_idmap *idmap = file_mnt_idmap(fp->filp);
-	vfsuid_t vfsuid = i_uid_into_vfsuid(idmap, inode);
-	vfsgid_t vfsgid = i_gid_into_vfsgid(idmap, inode);
-	u64 time;
-	int out_buf_len = sizeof(struct smb311_posix_qinfo) + 32;
-
-	file_info = (struct smb311_posix_qinfo *)rsp->Buffer;
-	file_info->CreationTime = cpu_to_le64(fp->create_time);
-	time = ksmbd_UnixTimeToNT(inode->i_atime);
-	file_info->LastAccessTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(inode->i_mtime);
-	file_info->LastWriteTime = cpu_to_le64(time);
-	time = ksmbd_UnixTimeToNT(inode->i_ctime);
-	file_info->ChangeTime = cpu_to_le64(time);
-	file_info->DosAttributes = fp->f_ci->m_fattr;
-	file_info->Inode = cpu_to_le64(inode->i_ino);
-	file_info->EndOfFile = cpu_to_le64(inode->i_size);
-	file_info->AllocationSize = cpu_to_le64(inode->i_blocks << 9);
-	file_info->HardLinks = cpu_to_le32(inode->i_nlink);
-	file_info->Mode = cpu_to_le32(inode->i_mode & 0777);
-	file_info->DeviceId = cpu_to_le32(inode->i_rdev);
-
-	/*
-	 * Sids(32) contain two sids(Domain sid(16), UNIX group sid(16)).
-	 * UNIX sid(16) = revision(1) + num_subauth(1) + authority(6) +
-	 *		  sub_auth(4 * 1(num_subauth)) + RID(4).
-	 */
-	id_to_sid(from_kuid_munged(&init_user_ns, vfsuid_into_kuid(vfsuid)),
-		  SIDUNIX_USER, (struct smb_sid *)&file_info->Sids[0]);
-	id_to_sid(from_kgid_munged(&init_user_ns, vfsgid_into_kgid(vfsgid)),
-		  SIDUNIX_GROUP, (struct smb_sid *)&file_info->Sids[16]);
-
-	rsp->OutputBufferLength = cpu_to_le32(out_buf_len);
-	inc_rfc1001_len(rsp_org, out_buf_len);
-	return out_buf_len;
-}
-
-static int smb2_get_info_file(struct ksmbd_work *work,
-			      struct smb2_query_info_req *req,
-			      struct smb2_query_info_rsp *rsp)
-{
-	struct ksmbd_file *fp;
-	int fileinfoclass = 0;
-	int rc = 0;
-	int file_infoclass_size;
-	unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID;
-
-	if (test_share_config_flag(work->tcon->share_conf,
-				   KSMBD_SHARE_FLAG_PIPE)) {
-		/* smb2 info file called for pipe */
-		return smb2_get_info_file_pipe(work->sess, req, rsp,
-					       work->response_buf);
-	}
-
-	if (work->next_smb2_rcv_hdr_off) {
-		if (!has_file_id(req->VolatileFileId)) {
-			ksmbd_debug(SMB, "Compound request set FID = %llu\n",
-				    work->compound_fid);
-			id = work->compound_fid;
-			pid = work->compound_pfid;
-		}
-	}
-
-	if (!has_file_id(id)) {
-		id = req->VolatileFileId;
-		pid = req->PersistentFileId;
-	}
-
-	fp = ksmbd_lookup_fd_slow(work, id, pid);
-	if (!fp)
-		return -ENOENT;
-
-	fileinfoclass = req->FileInfoClass;
-
-	switch (fileinfoclass) {
-	case FILE_ACCESS_INFORMATION:
-		get_file_access_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_ACCESS_INFORMATION_SIZE;
-		break;
-
-	case FILE_BASIC_INFORMATION:
-		rc = get_file_basic_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_BASIC_INFORMATION_SIZE;
-		break;
-
-	case FILE_STANDARD_INFORMATION:
-		get_file_standard_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_STANDARD_INFORMATION_SIZE;
-		break;
-
-	case FILE_ALIGNMENT_INFORMATION:
-		get_file_alignment_info(rsp, work->response_buf);
-		file_infoclass_size = FILE_ALIGNMENT_INFORMATION_SIZE;
-		break;
-
-	case FILE_ALL_INFORMATION:
-		rc = get_file_all_info(work, rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_ALL_INFORMATION_SIZE;
-		break;
-
-	case FILE_ALTERNATE_NAME_INFORMATION:
-		get_file_alternate_info(work, rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_ALTERNATE_NAME_INFORMATION_SIZE;
-		break;
-
-	case FILE_STREAM_INFORMATION:
-		get_file_stream_info(work, rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_STREAM_INFORMATION_SIZE;
-		break;
-
-	case FILE_INTERNAL_INFORMATION:
-		get_file_internal_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_INTERNAL_INFORMATION_SIZE;
-		break;
-
-	case FILE_NETWORK_OPEN_INFORMATION:
-		rc = get_file_network_open_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_NETWORK_OPEN_INFORMATION_SIZE;
-		break;
-
-	case FILE_EA_INFORMATION:
-		get_file_ea_info(rsp, work->response_buf);
-		file_infoclass_size = FILE_EA_INFORMATION_SIZE;
-		break;
-
-	case FILE_FULL_EA_INFORMATION:
-		rc = smb2_get_ea(work, fp, req, rsp, work->response_buf);
-		file_infoclass_size = FILE_FULL_EA_INFORMATION_SIZE;
-		break;
-
-	case FILE_POSITION_INFORMATION:
-		get_file_position_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_POSITION_INFORMATION_SIZE;
-		break;
-
-	case FILE_MODE_INFORMATION:
-		get_file_mode_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_MODE_INFORMATION_SIZE;
-		break;
-
-	case FILE_COMPRESSION_INFORMATION:
-		get_file_compression_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_COMPRESSION_INFORMATION_SIZE;
-		break;
-
-	case FILE_ATTRIBUTE_TAG_INFORMATION:
-		rc = get_file_attribute_tag_info(rsp, fp, work->response_buf);
-		file_infoclass_size = FILE_ATTRIBUTE_TAG_INFORMATION_SIZE;
-		break;
-	case SMB_FIND_FILE_POSIX_INFO:
-		if (!work->tcon->posix_extensions) {
-			pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n");
-			rc = -EOPNOTSUPP;
-		} else {
-			file_infoclass_size = find_file_posix_info(rsp, fp,
-					work->response_buf);
-		}
-		break;
-	default:
-		ksmbd_debug(SMB, "fileinfoclass %d not supported yet\n",
-			    fileinfoclass);
-		rc = -EOPNOTSUPP;
-	}
-	if (!rc)
-		rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
-				      rsp, work->response_buf,
-				      file_infoclass_size);
-	ksmbd_fd_put(work, fp);
-	return rc;
-}
-
-static int smb2_get_info_filesystem(struct ksmbd_work *work,
-				    struct smb2_query_info_req *req,
-				    struct smb2_query_info_rsp *rsp)
-{
-	struct ksmbd_session *sess = work->sess;
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_share_config *share = work->tcon->share_conf;
-	int fsinfoclass = 0;
-	struct kstatfs stfs;
-	struct path path;
-	int rc = 0, len;
-	int fs_infoclass_size = 0;
-
-	if (!share->path)
-		return -EIO;
-
-	rc = kern_path(share->path, LOOKUP_NO_SYMLINKS, &path);
-	if (rc) {
-		pr_err("cannot create vfs path\n");
-		return -EIO;
-	}
-
-	rc = vfs_statfs(&path, &stfs);
-	if (rc) {
-		pr_err("cannot do stat of path %s\n", share->path);
-		path_put(&path);
-		return -EIO;
-	}
-
-	fsinfoclass = req->FileInfoClass;
-
-	switch (fsinfoclass) {
-	case FS_DEVICE_INFORMATION:
-	{
-		struct filesystem_device_info *info;
-
-		info = (struct filesystem_device_info *)rsp->Buffer;
-
-		info->DeviceType = cpu_to_le32(stfs.f_type);
-		info->DeviceCharacteristics = cpu_to_le32(0x00000020);
-		rsp->OutputBufferLength = cpu_to_le32(8);
-		inc_rfc1001_len(work->response_buf, 8);
-		fs_infoclass_size = FS_DEVICE_INFORMATION_SIZE;
-		break;
-	}
-	case FS_ATTRIBUTE_INFORMATION:
-	{
-		struct filesystem_attribute_info *info;
-		size_t sz;
-
-		info = (struct filesystem_attribute_info *)rsp->Buffer;
-		info->Attributes = cpu_to_le32(FILE_SUPPORTS_OBJECT_IDS |
-					       FILE_PERSISTENT_ACLS |
-					       FILE_UNICODE_ON_DISK |
-					       FILE_CASE_PRESERVED_NAMES |
-					       FILE_CASE_SENSITIVE_SEARCH |
-					       FILE_SUPPORTS_BLOCK_REFCOUNTING);
-
-		info->Attributes |= cpu_to_le32(server_conf.share_fake_fscaps);
-
-		if (test_share_config_flag(work->tcon->share_conf,
-		    KSMBD_SHARE_FLAG_STREAMS))
-			info->Attributes |= cpu_to_le32(FILE_NAMED_STREAMS);
-
-		info->MaxPathNameComponentLength = cpu_to_le32(stfs.f_namelen);
-		len = smbConvertToUTF16((__le16 *)info->FileSystemName,
-					"NTFS", PATH_MAX, conn->local_nls, 0);
-		len = len * 2;
-		info->FileSystemNameLen = cpu_to_le32(len);
-		sz = sizeof(struct filesystem_attribute_info) - 2 + len;
-		rsp->OutputBufferLength = cpu_to_le32(sz);
-		inc_rfc1001_len(work->response_buf, sz);
-		fs_infoclass_size = FS_ATTRIBUTE_INFORMATION_SIZE;
-		break;
-	}
-	case FS_VOLUME_INFORMATION:
-	{
-		struct filesystem_vol_info *info;
-		size_t sz;
-		unsigned int serial_crc = 0;
-
-		info = (struct filesystem_vol_info *)(rsp->Buffer);
-		info->VolumeCreationTime = 0;
-		serial_crc = crc32_le(serial_crc, share->name,
-				      strlen(share->name));
-		serial_crc = crc32_le(serial_crc, share->path,
-				      strlen(share->path));
-		serial_crc = crc32_le(serial_crc, ksmbd_netbios_name(),
-				      strlen(ksmbd_netbios_name()));
-		/* Taking dummy value of serial number*/
-		info->SerialNumber = cpu_to_le32(serial_crc);
-		len = smbConvertToUTF16((__le16 *)info->VolumeLabel,
-					share->name, PATH_MAX,
-					conn->local_nls, 0);
-		len = len * 2;
-		info->VolumeLabelSize = cpu_to_le32(len);
-		info->Reserved = 0;
-		sz = sizeof(struct filesystem_vol_info) - 2 + len;
-		rsp->OutputBufferLength = cpu_to_le32(sz);
-		inc_rfc1001_len(work->response_buf, sz);
-		fs_infoclass_size = FS_VOLUME_INFORMATION_SIZE;
-		break;
-	}
-	case FS_SIZE_INFORMATION:
-	{
-		struct filesystem_info *info;
-
-		info = (struct filesystem_info *)(rsp->Buffer);
-		info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks);
-		info->FreeAllocationUnits = cpu_to_le64(stfs.f_bfree);
-		info->SectorsPerAllocationUnit = cpu_to_le32(1);
-		info->BytesPerSector = cpu_to_le32(stfs.f_bsize);
-		rsp->OutputBufferLength = cpu_to_le32(24);
-		inc_rfc1001_len(work->response_buf, 24);
-		fs_infoclass_size = FS_SIZE_INFORMATION_SIZE;
-		break;
-	}
-	case FS_FULL_SIZE_INFORMATION:
-	{
-		struct smb2_fs_full_size_info *info;
-
-		info = (struct smb2_fs_full_size_info *)(rsp->Buffer);
-		info->TotalAllocationUnits = cpu_to_le64(stfs.f_blocks);
-		info->CallerAvailableAllocationUnits =
-					cpu_to_le64(stfs.f_bavail);
-		info->ActualAvailableAllocationUnits =
-					cpu_to_le64(stfs.f_bfree);
-		info->SectorsPerAllocationUnit = cpu_to_le32(1);
-		info->BytesPerSector = cpu_to_le32(stfs.f_bsize);
-		rsp->OutputBufferLength = cpu_to_le32(32);
-		inc_rfc1001_len(work->response_buf, 32);
-		fs_infoclass_size = FS_FULL_SIZE_INFORMATION_SIZE;
-		break;
-	}
-	case FS_OBJECT_ID_INFORMATION:
-	{
-		struct object_id_info *info;
-
-		info = (struct object_id_info *)(rsp->Buffer);
-
-		if (!user_guest(sess->user))
-			memcpy(info->objid, user_passkey(sess->user), 16);
-		else
-			memset(info->objid, 0, 16);
-
-		info->extended_info.magic = cpu_to_le32(EXTENDED_INFO_MAGIC);
-		info->extended_info.version = cpu_to_le32(1);
-		info->extended_info.release = cpu_to_le32(1);
-		info->extended_info.rel_date = 0;
-		memcpy(info->extended_info.version_string, "1.1.0", strlen("1.1.0"));
-		rsp->OutputBufferLength = cpu_to_le32(64);
-		inc_rfc1001_len(work->response_buf, 64);
-		fs_infoclass_size = FS_OBJECT_ID_INFORMATION_SIZE;
-		break;
-	}
-	case FS_SECTOR_SIZE_INFORMATION:
-	{
-		struct smb3_fs_ss_info *info;
-		unsigned int sector_size =
-			min_t(unsigned int, path.mnt->mnt_sb->s_blocksize, 4096);
-
-		info = (struct smb3_fs_ss_info *)(rsp->Buffer);
-
-		info->LogicalBytesPerSector = cpu_to_le32(sector_size);
-		info->PhysicalBytesPerSectorForAtomicity =
-				cpu_to_le32(sector_size);
-		info->PhysicalBytesPerSectorForPerf = cpu_to_le32(sector_size);
-		info->FSEffPhysicalBytesPerSectorForAtomicity =
-				cpu_to_le32(sector_size);
-		info->Flags = cpu_to_le32(SSINFO_FLAGS_ALIGNED_DEVICE |
-				    SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE);
-		info->ByteOffsetForSectorAlignment = 0;
-		info->ByteOffsetForPartitionAlignment = 0;
-		rsp->OutputBufferLength = cpu_to_le32(28);
-		inc_rfc1001_len(work->response_buf, 28);
-		fs_infoclass_size = FS_SECTOR_SIZE_INFORMATION_SIZE;
-		break;
-	}
-	case FS_CONTROL_INFORMATION:
-	{
-		/*
-		 * TODO : The current implementation is based on
-		 * test result with win7(NTFS) server. It's need to
-		 * modify this to get valid Quota values
-		 * from Linux kernel
-		 */
-		struct smb2_fs_control_info *info;
-
-		info = (struct smb2_fs_control_info *)(rsp->Buffer);
-		info->FreeSpaceStartFiltering = 0;
-		info->FreeSpaceThreshold = 0;
-		info->FreeSpaceStopFiltering = 0;
-		info->DefaultQuotaThreshold = cpu_to_le64(SMB2_NO_FID);
-		info->DefaultQuotaLimit = cpu_to_le64(SMB2_NO_FID);
-		info->Padding = 0;
-		rsp->OutputBufferLength = cpu_to_le32(48);
-		inc_rfc1001_len(work->response_buf, 48);
-		fs_infoclass_size = FS_CONTROL_INFORMATION_SIZE;
-		break;
-	}
-	case FS_POSIX_INFORMATION:
-	{
-		struct filesystem_posix_info *info;
-
-		if (!work->tcon->posix_extensions) {
-			pr_err("client doesn't negotiate with SMB3.1.1 POSIX Extensions\n");
-			rc = -EOPNOTSUPP;
-		} else {
-			info = (struct filesystem_posix_info *)(rsp->Buffer);
-			info->OptimalTransferSize = cpu_to_le32(stfs.f_bsize);
-			info->BlockSize = cpu_to_le32(stfs.f_bsize);
-			info->TotalBlocks = cpu_to_le64(stfs.f_blocks);
-			info->BlocksAvail = cpu_to_le64(stfs.f_bfree);
-			info->UserBlocksAvail = cpu_to_le64(stfs.f_bavail);
-			info->TotalFileNodes = cpu_to_le64(stfs.f_files);
-			info->FreeFileNodes = cpu_to_le64(stfs.f_ffree);
-			rsp->OutputBufferLength = cpu_to_le32(56);
-			inc_rfc1001_len(work->response_buf, 56);
-			fs_infoclass_size = FS_POSIX_INFORMATION_SIZE;
-		}
-		break;
-	}
-	default:
-		path_put(&path);
-		return -EOPNOTSUPP;
-	}
-	rc = buffer_check_err(le32_to_cpu(req->OutputBufferLength),
-			      rsp, work->response_buf,
-			      fs_infoclass_size);
-	path_put(&path);
-	return rc;
-}
-
-static int smb2_get_info_sec(struct ksmbd_work *work,
-			     struct smb2_query_info_req *req,
-			     struct smb2_query_info_rsp *rsp)
-{
-	struct ksmbd_file *fp;
-	struct mnt_idmap *idmap;
-	struct smb_ntsd *pntsd = (struct smb_ntsd *)rsp->Buffer, *ppntsd = NULL;
-	struct smb_fattr fattr = {{0}};
-	struct inode *inode;
-	__u32 secdesclen = 0;
-	unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID;
-	int addition_info = le32_to_cpu(req->AdditionalInformation);
-	int rc = 0, ppntsd_size = 0;
-
-	if (addition_info & ~(OWNER_SECINFO | GROUP_SECINFO | DACL_SECINFO |
-			      PROTECTED_DACL_SECINFO |
-			      UNPROTECTED_DACL_SECINFO)) {
-		ksmbd_debug(SMB, "Unsupported addition info: 0x%x)\n",
-		       addition_info);
-
-		pntsd->revision = cpu_to_le16(1);
-		pntsd->type = cpu_to_le16(SELF_RELATIVE | DACL_PROTECTED);
-		pntsd->osidoffset = 0;
-		pntsd->gsidoffset = 0;
-		pntsd->sacloffset = 0;
-		pntsd->dacloffset = 0;
-
-		secdesclen = sizeof(struct smb_ntsd);
-		rsp->OutputBufferLength = cpu_to_le32(secdesclen);
-		inc_rfc1001_len(work->response_buf, secdesclen);
-
-		return 0;
-	}
-
-	if (work->next_smb2_rcv_hdr_off) {
-		if (!has_file_id(req->VolatileFileId)) {
-			ksmbd_debug(SMB, "Compound request set FID = %llu\n",
-				    work->compound_fid);
-			id = work->compound_fid;
-			pid = work->compound_pfid;
-		}
-	}
-
-	if (!has_file_id(id)) {
-		id = req->VolatileFileId;
-		pid = req->PersistentFileId;
-	}
-
-	fp = ksmbd_lookup_fd_slow(work, id, pid);
-	if (!fp)
-		return -ENOENT;
-
-	idmap = file_mnt_idmap(fp->filp);
-	inode = file_inode(fp->filp);
-	ksmbd_acls_fattr(&fattr, idmap, inode);
-
-	if (test_share_config_flag(work->tcon->share_conf,
-				   KSMBD_SHARE_FLAG_ACL_XATTR))
-		ppntsd_size = ksmbd_vfs_get_sd_xattr(work->conn, idmap,
-						     fp->filp->f_path.dentry,
-						     &ppntsd);
-
-	/* Check if sd buffer size exceeds response buffer size */
-	if (smb2_resp_buf_len(work, 8) > ppntsd_size)
-		rc = build_sec_desc(idmap, pntsd, ppntsd, ppntsd_size,
-				    addition_info, &secdesclen, &fattr);
-	posix_acl_release(fattr.cf_acls);
-	posix_acl_release(fattr.cf_dacls);
-	kfree(ppntsd);
-	ksmbd_fd_put(work, fp);
-	if (rc)
-		return rc;
-
-	rsp->OutputBufferLength = cpu_to_le32(secdesclen);
-	inc_rfc1001_len(work->response_buf, secdesclen);
-	return 0;
-}
-
-/**
- * smb2_query_info() - handler for smb2 query info command
- * @work:	smb work containing query info request buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_query_info(struct ksmbd_work *work)
-{
-	struct smb2_query_info_req *req;
-	struct smb2_query_info_rsp *rsp;
-	int rc = 0;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	ksmbd_debug(SMB, "GOT query info request\n");
-
-	switch (req->InfoType) {
-	case SMB2_O_INFO_FILE:
-		ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n");
-		rc = smb2_get_info_file(work, req, rsp);
-		break;
-	case SMB2_O_INFO_FILESYSTEM:
-		ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILESYSTEM\n");
-		rc = smb2_get_info_filesystem(work, req, rsp);
-		break;
-	case SMB2_O_INFO_SECURITY:
-		ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n");
-		rc = smb2_get_info_sec(work, req, rsp);
-		break;
-	default:
-		ksmbd_debug(SMB, "InfoType %d not supported yet\n",
-			    req->InfoType);
-		rc = -EOPNOTSUPP;
-	}
-
-	if (rc < 0) {
-		if (rc == -EACCES)
-			rsp->hdr.Status = STATUS_ACCESS_DENIED;
-		else if (rc == -ENOENT)
-			rsp->hdr.Status = STATUS_FILE_CLOSED;
-		else if (rc == -EIO)
-			rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR;
-		else if (rc == -EOPNOTSUPP || rsp->hdr.Status == 0)
-			rsp->hdr.Status = STATUS_INVALID_INFO_CLASS;
-		smb2_set_err_rsp(work);
-
-		ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n",
-			    rc);
-		return rc;
-	}
-	rsp->StructureSize = cpu_to_le16(9);
-	rsp->OutputBufferOffset = cpu_to_le16(72);
-	inc_rfc1001_len(work->response_buf, 8);
-	return 0;
-}
-
-/**
- * smb2_close_pipe() - handler for closing IPC pipe
- * @work:	smb work containing close request buffer
- *
- * Return:	0
- */
-static noinline int smb2_close_pipe(struct ksmbd_work *work)
-{
-	u64 id;
-	struct smb2_close_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_close_rsp *rsp = smb2_get_msg(work->response_buf);
-
-	id = req->VolatileFileId;
-	ksmbd_session_rpc_close(work->sess, id);
-
-	rsp->StructureSize = cpu_to_le16(60);
-	rsp->Flags = 0;
-	rsp->Reserved = 0;
-	rsp->CreationTime = 0;
-	rsp->LastAccessTime = 0;
-	rsp->LastWriteTime = 0;
-	rsp->ChangeTime = 0;
-	rsp->AllocationSize = 0;
-	rsp->EndOfFile = 0;
-	rsp->Attributes = 0;
-	inc_rfc1001_len(work->response_buf, 60);
-	return 0;
-}
-
-/**
- * smb2_close() - handler for smb2 close file command
- * @work:	smb work containing close request buffer
- *
- * Return:	0
- */
-int smb2_close(struct ksmbd_work *work)
-{
-	u64 volatile_id = KSMBD_NO_FID;
-	u64 sess_id;
-	struct smb2_close_req *req;
-	struct smb2_close_rsp *rsp;
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_file *fp;
-	struct inode *inode;
-	u64 time;
-	int err = 0;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	if (test_share_config_flag(work->tcon->share_conf,
-				   KSMBD_SHARE_FLAG_PIPE)) {
-		ksmbd_debug(SMB, "IPC pipe close request\n");
-		return smb2_close_pipe(work);
-	}
-
-	sess_id = le64_to_cpu(req->hdr.SessionId);
-	if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS)
-		sess_id = work->compound_sid;
-
-	work->compound_sid = 0;
-	if (check_session_id(conn, sess_id)) {
-		work->compound_sid = sess_id;
-	} else {
-		rsp->hdr.Status = STATUS_USER_SESSION_DELETED;
-		if (req->hdr.Flags & SMB2_FLAGS_RELATED_OPERATIONS)
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		err = -EBADF;
-		goto out;
-	}
-
-	if (work->next_smb2_rcv_hdr_off &&
-	    !has_file_id(req->VolatileFileId)) {
-		if (!has_file_id(work->compound_fid)) {
-			/* file already closed, return FILE_CLOSED */
-			ksmbd_debug(SMB, "file already closed\n");
-			rsp->hdr.Status = STATUS_FILE_CLOSED;
-			err = -EBADF;
-			goto out;
-		} else {
-			ksmbd_debug(SMB,
-				    "Compound request set FID = %llu:%llu\n",
-				    work->compound_fid,
-				    work->compound_pfid);
-			volatile_id = work->compound_fid;
-
-			/* file closed, stored id is not valid anymore */
-			work->compound_fid = KSMBD_NO_FID;
-			work->compound_pfid = KSMBD_NO_FID;
-		}
-	} else {
-		volatile_id = req->VolatileFileId;
-	}
-	ksmbd_debug(SMB, "volatile_id = %llu\n", volatile_id);
-
-	rsp->StructureSize = cpu_to_le16(60);
-	rsp->Reserved = 0;
-
-	if (req->Flags == SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB) {
-		fp = ksmbd_lookup_fd_fast(work, volatile_id);
-		if (!fp) {
-			err = -ENOENT;
-			goto out;
-		}
-
-		inode = file_inode(fp->filp);
-		rsp->Flags = SMB2_CLOSE_FLAG_POSTQUERY_ATTRIB;
-		rsp->AllocationSize = S_ISDIR(inode->i_mode) ? 0 :
-			cpu_to_le64(inode->i_blocks << 9);
-		rsp->EndOfFile = cpu_to_le64(inode->i_size);
-		rsp->Attributes = fp->f_ci->m_fattr;
-		rsp->CreationTime = cpu_to_le64(fp->create_time);
-		time = ksmbd_UnixTimeToNT(inode->i_atime);
-		rsp->LastAccessTime = cpu_to_le64(time);
-		time = ksmbd_UnixTimeToNT(inode->i_mtime);
-		rsp->LastWriteTime = cpu_to_le64(time);
-		time = ksmbd_UnixTimeToNT(inode->i_ctime);
-		rsp->ChangeTime = cpu_to_le64(time);
-		ksmbd_fd_put(work, fp);
-	} else {
-		rsp->Flags = 0;
-		rsp->AllocationSize = 0;
-		rsp->EndOfFile = 0;
-		rsp->Attributes = 0;
-		rsp->CreationTime = 0;
-		rsp->LastAccessTime = 0;
-		rsp->LastWriteTime = 0;
-		rsp->ChangeTime = 0;
-	}
-
-	err = ksmbd_close_fd(work, volatile_id);
-out:
-	if (err) {
-		if (rsp->hdr.Status == 0)
-			rsp->hdr.Status = STATUS_FILE_CLOSED;
-		smb2_set_err_rsp(work);
-	} else {
-		inc_rfc1001_len(work->response_buf, 60);
-	}
-
-	return 0;
-}
-
-/**
- * smb2_echo() - handler for smb2 echo(ping) command
- * @work:	smb work containing echo request buffer
- *
- * Return:	0
- */
-int smb2_echo(struct ksmbd_work *work)
-{
-	struct smb2_echo_rsp *rsp = smb2_get_msg(work->response_buf);
-
-	rsp->StructureSize = cpu_to_le16(4);
-	rsp->Reserved = 0;
-	inc_rfc1001_len(work->response_buf, 4);
-	return 0;
-}
-
-static int smb2_rename(struct ksmbd_work *work,
-		       struct ksmbd_file *fp,
-		       struct smb2_file_rename_info *file_info,
-		       struct nls_table *local_nls)
-{
-	struct ksmbd_share_config *share = fp->tcon->share_conf;
-	char *new_name = NULL;
-	int rc, flags = 0;
-
-	ksmbd_debug(SMB, "setting FILE_RENAME_INFO\n");
-	new_name = smb2_get_name(file_info->FileName,
-				 le32_to_cpu(file_info->FileNameLength),
-				 local_nls);
-	if (IS_ERR(new_name))
-		return PTR_ERR(new_name);
-
-	if (strchr(new_name, ':')) {
-		int s_type;
-		char *xattr_stream_name, *stream_name = NULL;
-		size_t xattr_stream_size;
-		int len;
-
-		rc = parse_stream_name(new_name, &stream_name, &s_type);
-		if (rc < 0)
-			goto out;
-
-		len = strlen(new_name);
-		if (len > 0 && new_name[len - 1] != '/') {
-			pr_err("not allow base filename in rename\n");
-			rc = -ESHARE;
-			goto out;
-		}
-
-		rc = ksmbd_vfs_xattr_stream_name(stream_name,
-						 &xattr_stream_name,
-						 &xattr_stream_size,
-						 s_type);
-		if (rc)
-			goto out;
-
-		rc = ksmbd_vfs_setxattr(file_mnt_idmap(fp->filp),
-					fp->filp->f_path.dentry,
-					xattr_stream_name,
-					NULL, 0, 0);
-		if (rc < 0) {
-			pr_err("failed to store stream name in xattr: %d\n",
-			       rc);
-			rc = -EINVAL;
-			goto out;
-		}
-
-		goto out;
-	}
-
-	ksmbd_debug(SMB, "new name %s\n", new_name);
-	if (ksmbd_share_veto_filename(share, new_name)) {
-		rc = -ENOENT;
-		ksmbd_debug(SMB, "Can't rename vetoed file: %s\n", new_name);
-		goto out;
-	}
-
-	if (!file_info->ReplaceIfExists)
-		flags = RENAME_NOREPLACE;
-
-	rc = ksmbd_vfs_rename(work, &fp->filp->f_path, new_name, flags);
-out:
-	kfree(new_name);
-	return rc;
-}
-
-static int smb2_create_link(struct ksmbd_work *work,
-			    struct ksmbd_share_config *share,
-			    struct smb2_file_link_info *file_info,
-			    unsigned int buf_len, struct file *filp,
-			    struct nls_table *local_nls)
-{
-	char *link_name = NULL, *target_name = NULL, *pathname = NULL;
-	struct path path;
-	bool file_present = true;
-	int rc;
-
-	if (buf_len < (u64)sizeof(struct smb2_file_link_info) +
-			le32_to_cpu(file_info->FileNameLength))
-		return -EINVAL;
-
-	ksmbd_debug(SMB, "setting FILE_LINK_INFORMATION\n");
-	pathname = kmalloc(PATH_MAX, GFP_KERNEL);
-	if (!pathname)
-		return -ENOMEM;
-
-	link_name = smb2_get_name(file_info->FileName,
-				  le32_to_cpu(file_info->FileNameLength),
-				  local_nls);
-	if (IS_ERR(link_name) || S_ISDIR(file_inode(filp)->i_mode)) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	ksmbd_debug(SMB, "link name is %s\n", link_name);
-	target_name = file_path(filp, pathname, PATH_MAX);
-	if (IS_ERR(target_name)) {
-		rc = -EINVAL;
-		goto out;
-	}
-
-	ksmbd_debug(SMB, "target name is %s\n", target_name);
-	rc = ksmbd_vfs_kern_path_locked(work, link_name, LOOKUP_NO_SYMLINKS,
-					&path, 0);
-	if (rc) {
-		if (rc != -ENOENT)
-			goto out;
-		file_present = false;
-	}
-
-	if (file_info->ReplaceIfExists) {
-		if (file_present) {
-			rc = ksmbd_vfs_remove_file(work, &path);
-			if (rc) {
-				rc = -EINVAL;
-				ksmbd_debug(SMB, "cannot delete %s\n",
-					    link_name);
-				goto out;
-			}
-		}
-	} else {
-		if (file_present) {
-			rc = -EEXIST;
-			ksmbd_debug(SMB, "link already exists\n");
-			goto out;
-		}
-	}
-
-	rc = ksmbd_vfs_link(work, target_name, link_name);
-	if (rc)
-		rc = -EINVAL;
-out:
-	if (file_present) {
-		inode_unlock(d_inode(path.dentry->d_parent));
-		path_put(&path);
-	}
-	if (!IS_ERR(link_name))
-		kfree(link_name);
-	kfree(pathname);
-	return rc;
-}
-
-static int set_file_basic_info(struct ksmbd_file *fp,
-			       struct smb2_file_basic_info *file_info,
-			       struct ksmbd_share_config *share)
-{
-	struct iattr attrs;
-	struct file *filp;
-	struct inode *inode;
-	struct mnt_idmap *idmap;
-	int rc = 0;
-
-	if (!(fp->daccess & FILE_WRITE_ATTRIBUTES_LE))
-		return -EACCES;
-
-	attrs.ia_valid = 0;
-	filp = fp->filp;
-	inode = file_inode(filp);
-	idmap = file_mnt_idmap(filp);
-
-	if (file_info->CreationTime)
-		fp->create_time = le64_to_cpu(file_info->CreationTime);
-
-	if (file_info->LastAccessTime) {
-		attrs.ia_atime = ksmbd_NTtimeToUnix(file_info->LastAccessTime);
-		attrs.ia_valid |= (ATTR_ATIME | ATTR_ATIME_SET);
-	}
-
-	attrs.ia_valid |= ATTR_CTIME;
-	if (file_info->ChangeTime)
-		attrs.ia_ctime = ksmbd_NTtimeToUnix(file_info->ChangeTime);
-	else
-		attrs.ia_ctime = inode->i_ctime;
-
-	if (file_info->LastWriteTime) {
-		attrs.ia_mtime = ksmbd_NTtimeToUnix(file_info->LastWriteTime);
-		attrs.ia_valid |= (ATTR_MTIME | ATTR_MTIME_SET);
-	}
-
-	if (file_info->Attributes) {
-		if (!S_ISDIR(inode->i_mode) &&
-		    file_info->Attributes & FILE_ATTRIBUTE_DIRECTORY_LE) {
-			pr_err("can't change a file to a directory\n");
-			return -EINVAL;
-		}
-
-		if (!(S_ISDIR(inode->i_mode) && file_info->Attributes == FILE_ATTRIBUTE_NORMAL_LE))
-			fp->f_ci->m_fattr = file_info->Attributes |
-				(fp->f_ci->m_fattr & FILE_ATTRIBUTE_DIRECTORY_LE);
-	}
-
-	if (test_share_config_flag(share, KSMBD_SHARE_FLAG_STORE_DOS_ATTRS) &&
-	    (file_info->CreationTime || file_info->Attributes)) {
-		struct xattr_dos_attrib da = {0};
-
-		da.version = 4;
-		da.itime = fp->itime;
-		da.create_time = fp->create_time;
-		da.attr = le32_to_cpu(fp->f_ci->m_fattr);
-		da.flags = XATTR_DOSINFO_ATTRIB | XATTR_DOSINFO_CREATE_TIME |
-			XATTR_DOSINFO_ITIME;
-
-		rc = ksmbd_vfs_set_dos_attrib_xattr(idmap,
-						    filp->f_path.dentry, &da);
-		if (rc)
-			ksmbd_debug(SMB,
-				    "failed to restore file attribute in EA\n");
-		rc = 0;
-	}
-
-	if (attrs.ia_valid) {
-		struct dentry *dentry = filp->f_path.dentry;
-		struct inode *inode = d_inode(dentry);
-
-		if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
-			return -EACCES;
-
-		inode_lock(inode);
-		inode->i_ctime = attrs.ia_ctime;
-		attrs.ia_valid &= ~ATTR_CTIME;
-		rc = notify_change(idmap, dentry, &attrs, NULL);
-		inode_unlock(inode);
-	}
-	return rc;
-}
-
-static int set_file_allocation_info(struct ksmbd_work *work,
-				    struct ksmbd_file *fp,
-				    struct smb2_file_alloc_info *file_alloc_info)
-{
-	/*
-	 * TODO : It's working fine only when store dos attributes
-	 * is not yes. need to implement a logic which works
-	 * properly with any smb.conf option
-	 */
-
-	loff_t alloc_blks;
-	struct inode *inode;
-	int rc;
-
-	if (!(fp->daccess & FILE_WRITE_DATA_LE))
-		return -EACCES;
-
-	alloc_blks = (le64_to_cpu(file_alloc_info->AllocationSize) + 511) >> 9;
-	inode = file_inode(fp->filp);
-
-	if (alloc_blks > inode->i_blocks) {
-		smb_break_all_levII_oplock(work, fp, 1);
-		rc = vfs_fallocate(fp->filp, FALLOC_FL_KEEP_SIZE, 0,
-				   alloc_blks * 512);
-		if (rc && rc != -EOPNOTSUPP) {
-			pr_err("vfs_fallocate is failed : %d\n", rc);
-			return rc;
-		}
-	} else if (alloc_blks < inode->i_blocks) {
-		loff_t size;
-
-		/*
-		 * Allocation size could be smaller than original one
-		 * which means allocated blocks in file should be
-		 * deallocated. use truncate to cut out it, but inode
-		 * size is also updated with truncate offset.
-		 * inode size is retained by backup inode size.
-		 */
-		size = i_size_read(inode);
-		rc = ksmbd_vfs_truncate(work, fp, alloc_blks * 512);
-		if (rc) {
-			pr_err("truncate failed!, err %d\n", rc);
-			return rc;
-		}
-		if (size < alloc_blks * 512)
-			i_size_write(inode, size);
-	}
-	return 0;
-}
-
-static int set_end_of_file_info(struct ksmbd_work *work, struct ksmbd_file *fp,
-				struct smb2_file_eof_info *file_eof_info)
-{
-	loff_t newsize;
-	struct inode *inode;
-	int rc;
-
-	if (!(fp->daccess & FILE_WRITE_DATA_LE))
-		return -EACCES;
-
-	newsize = le64_to_cpu(file_eof_info->EndOfFile);
-	inode = file_inode(fp->filp);
-
-	/*
-	 * If FILE_END_OF_FILE_INFORMATION of set_info_file is called
-	 * on FAT32 shared device, truncate execution time is too long
-	 * and network error could cause from windows client. because
-	 * truncate of some filesystem like FAT32 fill zero data in
-	 * truncated range.
-	 */
-	if (inode->i_sb->s_magic != MSDOS_SUPER_MAGIC) {
-		ksmbd_debug(SMB, "truncated to newsize %lld\n", newsize);
-		rc = ksmbd_vfs_truncate(work, fp, newsize);
-		if (rc) {
-			ksmbd_debug(SMB, "truncate failed!, err %d\n", rc);
-			if (rc != -EAGAIN)
-				rc = -EBADF;
-			return rc;
-		}
-	}
-	return 0;
-}
-
-static int set_rename_info(struct ksmbd_work *work, struct ksmbd_file *fp,
-			   struct smb2_file_rename_info *rename_info,
-			   unsigned int buf_len)
-{
-	if (!(fp->daccess & FILE_DELETE_LE)) {
-		pr_err("no right to delete : 0x%x\n", fp->daccess);
-		return -EACCES;
-	}
-
-	if (buf_len < (u64)sizeof(struct smb2_file_rename_info) +
-			le32_to_cpu(rename_info->FileNameLength))
-		return -EINVAL;
-
-	if (!le32_to_cpu(rename_info->FileNameLength))
-		return -EINVAL;
-
-	return smb2_rename(work, fp, rename_info, work->conn->local_nls);
-}
-
-static int set_file_disposition_info(struct ksmbd_file *fp,
-				     struct smb2_file_disposition_info *file_info)
-{
-	struct inode *inode;
-
-	if (!(fp->daccess & FILE_DELETE_LE)) {
-		pr_err("no right to delete : 0x%x\n", fp->daccess);
-		return -EACCES;
-	}
-
-	inode = file_inode(fp->filp);
-	if (file_info->DeletePending) {
-		if (S_ISDIR(inode->i_mode) &&
-		    ksmbd_vfs_empty_dir(fp) == -ENOTEMPTY)
-			return -EBUSY;
-		ksmbd_set_inode_pending_delete(fp);
-	} else {
-		ksmbd_clear_inode_pending_delete(fp);
-	}
-	return 0;
-}
-
-static int set_file_position_info(struct ksmbd_file *fp,
-				  struct smb2_file_pos_info *file_info)
-{
-	loff_t current_byte_offset;
-	unsigned long sector_size;
-	struct inode *inode;
-
-	inode = file_inode(fp->filp);
-	current_byte_offset = le64_to_cpu(file_info->CurrentByteOffset);
-	sector_size = inode->i_sb->s_blocksize;
-
-	if (current_byte_offset < 0 ||
-	    (fp->coption == FILE_NO_INTERMEDIATE_BUFFERING_LE &&
-	     current_byte_offset & (sector_size - 1))) {
-		pr_err("CurrentByteOffset is not valid : %llu\n",
-		       current_byte_offset);
-		return -EINVAL;
-	}
-
-	fp->filp->f_pos = current_byte_offset;
-	return 0;
-}
-
-static int set_file_mode_info(struct ksmbd_file *fp,
-			      struct smb2_file_mode_info *file_info)
-{
-	__le32 mode;
-
-	mode = file_info->Mode;
-
-	if ((mode & ~FILE_MODE_INFO_MASK)) {
-		pr_err("Mode is not valid : 0x%x\n", le32_to_cpu(mode));
-		return -EINVAL;
-	}
-
-	/*
-	 * TODO : need to implement consideration for
-	 * FILE_SYNCHRONOUS_IO_ALERT and FILE_SYNCHRONOUS_IO_NONALERT
-	 */
-	ksmbd_vfs_set_fadvise(fp->filp, mode);
-	fp->coption = mode;
-	return 0;
-}
-
-/**
- * smb2_set_info_file() - handler for smb2 set info command
- * @work:	smb work containing set info command buffer
- * @fp:		ksmbd_file pointer
- * @req:	request buffer pointer
- * @share:	ksmbd_share_config pointer
- *
- * Return:	0 on success, otherwise error
- * TODO: need to implement an error handling for STATUS_INFO_LENGTH_MISMATCH
- */
-static int smb2_set_info_file(struct ksmbd_work *work, struct ksmbd_file *fp,
-			      struct smb2_set_info_req *req,
-			      struct ksmbd_share_config *share)
-{
-	unsigned int buf_len = le32_to_cpu(req->BufferLength);
-
-	switch (req->FileInfoClass) {
-	case FILE_BASIC_INFORMATION:
-	{
-		if (buf_len < sizeof(struct smb2_file_basic_info))
-			return -EINVAL;
-
-		return set_file_basic_info(fp, (struct smb2_file_basic_info *)req->Buffer, share);
-	}
-	case FILE_ALLOCATION_INFORMATION:
-	{
-		if (buf_len < sizeof(struct smb2_file_alloc_info))
-			return -EINVAL;
-
-		return set_file_allocation_info(work, fp,
-						(struct smb2_file_alloc_info *)req->Buffer);
-	}
-	case FILE_END_OF_FILE_INFORMATION:
-	{
-		if (buf_len < sizeof(struct smb2_file_eof_info))
-			return -EINVAL;
-
-		return set_end_of_file_info(work, fp,
-					    (struct smb2_file_eof_info *)req->Buffer);
-	}
-	case FILE_RENAME_INFORMATION:
-	{
-		if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-			ksmbd_debug(SMB,
-				    "User does not have write permission\n");
-			return -EACCES;
-		}
-
-		if (buf_len < sizeof(struct smb2_file_rename_info))
-			return -EINVAL;
-
-		return set_rename_info(work, fp,
-				       (struct smb2_file_rename_info *)req->Buffer,
-				       buf_len);
-	}
-	case FILE_LINK_INFORMATION:
-	{
-		if (buf_len < sizeof(struct smb2_file_link_info))
-			return -EINVAL;
-
-		return smb2_create_link(work, work->tcon->share_conf,
-					(struct smb2_file_link_info *)req->Buffer,
-					buf_len, fp->filp,
-					work->conn->local_nls);
-	}
-	case FILE_DISPOSITION_INFORMATION:
-	{
-		if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-			ksmbd_debug(SMB,
-				    "User does not have write permission\n");
-			return -EACCES;
-		}
-
-		if (buf_len < sizeof(struct smb2_file_disposition_info))
-			return -EINVAL;
-
-		return set_file_disposition_info(fp,
-						 (struct smb2_file_disposition_info *)req->Buffer);
-	}
-	case FILE_FULL_EA_INFORMATION:
-	{
-		if (!(fp->daccess & FILE_WRITE_EA_LE)) {
-			pr_err("Not permitted to write ext  attr: 0x%x\n",
-			       fp->daccess);
-			return -EACCES;
-		}
-
-		if (buf_len < sizeof(struct smb2_ea_info))
-			return -EINVAL;
-
-		return smb2_set_ea((struct smb2_ea_info *)req->Buffer,
-				   buf_len, &fp->filp->f_path);
-	}
-	case FILE_POSITION_INFORMATION:
-	{
-		if (buf_len < sizeof(struct smb2_file_pos_info))
-			return -EINVAL;
-
-		return set_file_position_info(fp, (struct smb2_file_pos_info *)req->Buffer);
-	}
-	case FILE_MODE_INFORMATION:
-	{
-		if (buf_len < sizeof(struct smb2_file_mode_info))
-			return -EINVAL;
-
-		return set_file_mode_info(fp, (struct smb2_file_mode_info *)req->Buffer);
-	}
-	}
-
-	pr_err("Unimplemented Fileinfoclass :%d\n", req->FileInfoClass);
-	return -EOPNOTSUPP;
-}
-
-static int smb2_set_info_sec(struct ksmbd_file *fp, int addition_info,
-			     char *buffer, int buf_len)
-{
-	struct smb_ntsd *pntsd = (struct smb_ntsd *)buffer;
-
-	fp->saccess |= FILE_SHARE_DELETE_LE;
-
-	return set_info_sec(fp->conn, fp->tcon, &fp->filp->f_path, pntsd,
-			buf_len, false);
-}
-
-/**
- * smb2_set_info() - handler for smb2 set info command handler
- * @work:	smb work containing set info request buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_set_info(struct ksmbd_work *work)
-{
-	struct smb2_set_info_req *req;
-	struct smb2_set_info_rsp *rsp;
-	struct ksmbd_file *fp;
-	int rc = 0;
-	unsigned int id = KSMBD_NO_FID, pid = KSMBD_NO_FID;
-
-	ksmbd_debug(SMB, "Received set info request\n");
-
-	if (work->next_smb2_rcv_hdr_off) {
-		req = ksmbd_req_buf_next(work);
-		rsp = ksmbd_resp_buf_next(work);
-		if (!has_file_id(req->VolatileFileId)) {
-			ksmbd_debug(SMB, "Compound request set FID = %llu\n",
-				    work->compound_fid);
-			id = work->compound_fid;
-			pid = work->compound_pfid;
-		}
-	} else {
-		req = smb2_get_msg(work->request_buf);
-		rsp = smb2_get_msg(work->response_buf);
-	}
-
-	if (!has_file_id(id)) {
-		id = req->VolatileFileId;
-		pid = req->PersistentFileId;
-	}
-
-	fp = ksmbd_lookup_fd_slow(work, id, pid);
-	if (!fp) {
-		ksmbd_debug(SMB, "Invalid id for close: %u\n", id);
-		rc = -ENOENT;
-		goto err_out;
-	}
-
-	switch (req->InfoType) {
-	case SMB2_O_INFO_FILE:
-		ksmbd_debug(SMB, "GOT SMB2_O_INFO_FILE\n");
-		rc = smb2_set_info_file(work, fp, req, work->tcon->share_conf);
-		break;
-	case SMB2_O_INFO_SECURITY:
-		ksmbd_debug(SMB, "GOT SMB2_O_INFO_SECURITY\n");
-		if (ksmbd_override_fsids(work)) {
-			rc = -ENOMEM;
-			goto err_out;
-		}
-		rc = smb2_set_info_sec(fp,
-				       le32_to_cpu(req->AdditionalInformation),
-				       req->Buffer,
-				       le32_to_cpu(req->BufferLength));
-		ksmbd_revert_fsids(work);
-		break;
-	default:
-		rc = -EOPNOTSUPP;
-	}
-
-	if (rc < 0)
-		goto err_out;
-
-	rsp->StructureSize = cpu_to_le16(2);
-	inc_rfc1001_len(work->response_buf, 2);
-	ksmbd_fd_put(work, fp);
-	return 0;
-
-err_out:
-	if (rc == -EACCES || rc == -EPERM || rc == -EXDEV)
-		rsp->hdr.Status = STATUS_ACCESS_DENIED;
-	else if (rc == -EINVAL)
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-	else if (rc == -ESHARE)
-		rsp->hdr.Status = STATUS_SHARING_VIOLATION;
-	else if (rc == -ENOENT)
-		rsp->hdr.Status = STATUS_OBJECT_NAME_INVALID;
-	else if (rc == -EBUSY || rc == -ENOTEMPTY)
-		rsp->hdr.Status = STATUS_DIRECTORY_NOT_EMPTY;
-	else if (rc == -EAGAIN)
-		rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT;
-	else if (rc == -EBADF || rc == -ESTALE)
-		rsp->hdr.Status = STATUS_INVALID_HANDLE;
-	else if (rc == -EEXIST)
-		rsp->hdr.Status = STATUS_OBJECT_NAME_COLLISION;
-	else if (rsp->hdr.Status == 0 || rc == -EOPNOTSUPP)
-		rsp->hdr.Status = STATUS_INVALID_INFO_CLASS;
-	smb2_set_err_rsp(work);
-	ksmbd_fd_put(work, fp);
-	ksmbd_debug(SMB, "error while processing smb2 query rc = %d\n", rc);
-	return rc;
-}
-
-/**
- * smb2_read_pipe() - handler for smb2 read from IPC pipe
- * @work:	smb work containing read IPC pipe command buffer
- *
- * Return:	0 on success, otherwise error
- */
-static noinline int smb2_read_pipe(struct ksmbd_work *work)
-{
-	int nbytes = 0, err;
-	u64 id;
-	struct ksmbd_rpc_command *rpc_resp;
-	struct smb2_read_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_read_rsp *rsp = smb2_get_msg(work->response_buf);
-
-	id = req->VolatileFileId;
-
-	inc_rfc1001_len(work->response_buf, 16);
-	rpc_resp = ksmbd_rpc_read(work->sess, id);
-	if (rpc_resp) {
-		if (rpc_resp->flags != KSMBD_RPC_OK) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		work->aux_payload_buf =
-			kvmalloc(rpc_resp->payload_sz, GFP_KERNEL | __GFP_ZERO);
-		if (!work->aux_payload_buf) {
-			err = -ENOMEM;
-			goto out;
-		}
-
-		memcpy(work->aux_payload_buf, rpc_resp->payload,
-		       rpc_resp->payload_sz);
-
-		nbytes = rpc_resp->payload_sz;
-		work->resp_hdr_sz = get_rfc1002_len(work->response_buf) + 4;
-		work->aux_payload_sz = nbytes;
-		kvfree(rpc_resp);
-	}
-
-	rsp->StructureSize = cpu_to_le16(17);
-	rsp->DataOffset = 80;
-	rsp->Reserved = 0;
-	rsp->DataLength = cpu_to_le32(nbytes);
-	rsp->DataRemaining = 0;
-	rsp->Flags = 0;
-	inc_rfc1001_len(work->response_buf, nbytes);
-	return 0;
-
-out:
-	rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR;
-	smb2_set_err_rsp(work);
-	kvfree(rpc_resp);
-	return err;
-}
-
-static int smb2_set_remote_key_for_rdma(struct ksmbd_work *work,
-					struct smb2_buffer_desc_v1 *desc,
-					__le32 Channel,
-					__le16 ChannelInfoLength)
-{
-	unsigned int i, ch_count;
-
-	if (work->conn->dialect == SMB30_PROT_ID &&
-	    Channel != SMB2_CHANNEL_RDMA_V1)
-		return -EINVAL;
-
-	ch_count = le16_to_cpu(ChannelInfoLength) / sizeof(*desc);
-	if (ksmbd_debug_types & KSMBD_DEBUG_RDMA) {
-		for (i = 0; i < ch_count; i++) {
-			pr_info("RDMA r/w request %#x: token %#x, length %#x\n",
-				i,
-				le32_to_cpu(desc[i].token),
-				le32_to_cpu(desc[i].length));
-		}
-	}
-	if (!ch_count)
-		return -EINVAL;
-
-	work->need_invalidate_rkey =
-		(Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE);
-	if (Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE)
-		work->remote_key = le32_to_cpu(desc->token);
-	return 0;
-}
-
-static ssize_t smb2_read_rdma_channel(struct ksmbd_work *work,
-				      struct smb2_read_req *req, void *data_buf,
-				      size_t length)
-{
-	int err;
-
-	err = ksmbd_conn_rdma_write(work->conn, data_buf, length,
-				    (struct smb2_buffer_desc_v1 *)
-				    ((char *)req + le16_to_cpu(req->ReadChannelInfoOffset)),
-				    le16_to_cpu(req->ReadChannelInfoLength));
-	if (err)
-		return err;
-
-	return length;
-}
-
-/**
- * smb2_read() - handler for smb2 read from file
- * @work:	smb work containing read command buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_read(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_read_req *req;
-	struct smb2_read_rsp *rsp;
-	struct ksmbd_file *fp = NULL;
-	loff_t offset;
-	size_t length, mincount;
-	ssize_t nbytes = 0, remain_bytes = 0;
-	int err = 0;
-	bool is_rdma_channel = false;
-	unsigned int max_read_size = conn->vals->max_read_size;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	if (test_share_config_flag(work->tcon->share_conf,
-				   KSMBD_SHARE_FLAG_PIPE)) {
-		ksmbd_debug(SMB, "IPC pipe read request\n");
-		return smb2_read_pipe(work);
-	}
-
-	if (req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE ||
-	    req->Channel == SMB2_CHANNEL_RDMA_V1) {
-		is_rdma_channel = true;
-		max_read_size = get_smbd_max_read_write_size();
-	}
-
-	if (is_rdma_channel == true) {
-		unsigned int ch_offset = le16_to_cpu(req->ReadChannelInfoOffset);
-
-		if (ch_offset < offsetof(struct smb2_read_req, Buffer)) {
-			err = -EINVAL;
-			goto out;
-		}
-		err = smb2_set_remote_key_for_rdma(work,
-						   (struct smb2_buffer_desc_v1 *)
-						   ((char *)req + ch_offset),
-						   req->Channel,
-						   req->ReadChannelInfoLength);
-		if (err)
-			goto out;
-	}
-
-	fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId);
-	if (!fp) {
-		err = -ENOENT;
-		goto out;
-	}
-
-	if (!(fp->daccess & (FILE_READ_DATA_LE | FILE_READ_ATTRIBUTES_LE))) {
-		pr_err("Not permitted to read : 0x%x\n", fp->daccess);
-		err = -EACCES;
-		goto out;
-	}
-
-	offset = le64_to_cpu(req->Offset);
-	length = le32_to_cpu(req->Length);
-	mincount = le32_to_cpu(req->MinimumCount);
-
-	if (length > max_read_size) {
-		ksmbd_debug(SMB, "limiting read size to max size(%u)\n",
-			    max_read_size);
-		err = -EINVAL;
-		goto out;
-	}
-
-	ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n",
-		    fp->filp, offset, length);
-
-	work->aux_payload_buf = kvmalloc(length, GFP_KERNEL | __GFP_ZERO);
-	if (!work->aux_payload_buf) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	nbytes = ksmbd_vfs_read(work, fp, length, &offset);
-	if (nbytes < 0) {
-		err = nbytes;
-		goto out;
-	}
-
-	if ((nbytes == 0 && length != 0) || nbytes < mincount) {
-		kvfree(work->aux_payload_buf);
-		work->aux_payload_buf = NULL;
-		rsp->hdr.Status = STATUS_END_OF_FILE;
-		smb2_set_err_rsp(work);
-		ksmbd_fd_put(work, fp);
-		return 0;
-	}
-
-	ksmbd_debug(SMB, "nbytes %zu, offset %lld mincount %zu\n",
-		    nbytes, offset, mincount);
-
-	if (is_rdma_channel == true) {
-		/* write data to the client using rdma channel */
-		remain_bytes = smb2_read_rdma_channel(work, req,
-						      work->aux_payload_buf,
-						      nbytes);
-		kvfree(work->aux_payload_buf);
-		work->aux_payload_buf = NULL;
-
-		nbytes = 0;
-		if (remain_bytes < 0) {
-			err = (int)remain_bytes;
-			goto out;
-		}
-	}
-
-	rsp->StructureSize = cpu_to_le16(17);
-	rsp->DataOffset = 80;
-	rsp->Reserved = 0;
-	rsp->DataLength = cpu_to_le32(nbytes);
-	rsp->DataRemaining = cpu_to_le32(remain_bytes);
-	rsp->Flags = 0;
-	inc_rfc1001_len(work->response_buf, 16);
-	work->resp_hdr_sz = get_rfc1002_len(work->response_buf) + 4;
-	work->aux_payload_sz = nbytes;
-	inc_rfc1001_len(work->response_buf, nbytes);
-	ksmbd_fd_put(work, fp);
-	return 0;
-
-out:
-	if (err) {
-		if (err == -EISDIR)
-			rsp->hdr.Status = STATUS_INVALID_DEVICE_REQUEST;
-		else if (err == -EAGAIN)
-			rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT;
-		else if (err == -ENOENT)
-			rsp->hdr.Status = STATUS_FILE_CLOSED;
-		else if (err == -EACCES)
-			rsp->hdr.Status = STATUS_ACCESS_DENIED;
-		else if (err == -ESHARE)
-			rsp->hdr.Status = STATUS_SHARING_VIOLATION;
-		else if (err == -EINVAL)
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		else
-			rsp->hdr.Status = STATUS_INVALID_HANDLE;
-
-		smb2_set_err_rsp(work);
-	}
-	ksmbd_fd_put(work, fp);
-	return err;
-}
-
-/**
- * smb2_write_pipe() - handler for smb2 write on IPC pipe
- * @work:	smb work containing write IPC pipe command buffer
- *
- * Return:	0 on success, otherwise error
- */
-static noinline int smb2_write_pipe(struct ksmbd_work *work)
-{
-	struct smb2_write_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_write_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_rpc_command *rpc_resp;
-	u64 id = 0;
-	int err = 0, ret = 0;
-	char *data_buf;
-	size_t length;
-
-	length = le32_to_cpu(req->Length);
-	id = req->VolatileFileId;
-
-	if ((u64)le16_to_cpu(req->DataOffset) + length >
-	    get_rfc1002_len(work->request_buf)) {
-		pr_err("invalid write data offset %u, smb_len %u\n",
-		       le16_to_cpu(req->DataOffset),
-		       get_rfc1002_len(work->request_buf));
-		err = -EINVAL;
-		goto out;
-	}
-
-	data_buf = (char *)(((char *)&req->hdr.ProtocolId) +
-			   le16_to_cpu(req->DataOffset));
-
-	rpc_resp = ksmbd_rpc_write(work->sess, id, data_buf, length);
-	if (rpc_resp) {
-		if (rpc_resp->flags == KSMBD_RPC_ENOTIMPLEMENTED) {
-			rsp->hdr.Status = STATUS_NOT_SUPPORTED;
-			kvfree(rpc_resp);
-			smb2_set_err_rsp(work);
-			return -EOPNOTSUPP;
-		}
-		if (rpc_resp->flags != KSMBD_RPC_OK) {
-			rsp->hdr.Status = STATUS_INVALID_HANDLE;
-			smb2_set_err_rsp(work);
-			kvfree(rpc_resp);
-			return ret;
-		}
-		kvfree(rpc_resp);
-	}
-
-	rsp->StructureSize = cpu_to_le16(17);
-	rsp->DataOffset = 0;
-	rsp->Reserved = 0;
-	rsp->DataLength = cpu_to_le32(length);
-	rsp->DataRemaining = 0;
-	rsp->Reserved2 = 0;
-	inc_rfc1001_len(work->response_buf, 16);
-	return 0;
-out:
-	if (err) {
-		rsp->hdr.Status = STATUS_INVALID_HANDLE;
-		smb2_set_err_rsp(work);
-	}
-
-	return err;
-}
-
-static ssize_t smb2_write_rdma_channel(struct ksmbd_work *work,
-				       struct smb2_write_req *req,
-				       struct ksmbd_file *fp,
-				       loff_t offset, size_t length, bool sync)
-{
-	char *data_buf;
-	int ret;
-	ssize_t nbytes;
-
-	data_buf = kvmalloc(length, GFP_KERNEL | __GFP_ZERO);
-	if (!data_buf)
-		return -ENOMEM;
-
-	ret = ksmbd_conn_rdma_read(work->conn, data_buf, length,
-				   (struct smb2_buffer_desc_v1 *)
-				   ((char *)req + le16_to_cpu(req->WriteChannelInfoOffset)),
-				   le16_to_cpu(req->WriteChannelInfoLength));
-	if (ret < 0) {
-		kvfree(data_buf);
-		return ret;
-	}
-
-	ret = ksmbd_vfs_write(work, fp, data_buf, length, &offset, sync, &nbytes);
-	kvfree(data_buf);
-	if (ret < 0)
-		return ret;
-
-	return nbytes;
-}
-
-/**
- * smb2_write() - handler for smb2 write from file
- * @work:	smb work containing write command buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_write(struct ksmbd_work *work)
-{
-	struct smb2_write_req *req;
-	struct smb2_write_rsp *rsp;
-	struct ksmbd_file *fp = NULL;
-	loff_t offset;
-	size_t length;
-	ssize_t nbytes;
-	char *data_buf;
-	bool writethrough = false, is_rdma_channel = false;
-	int err = 0;
-	unsigned int max_write_size = work->conn->vals->max_write_size;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	if (test_share_config_flag(work->tcon->share_conf, KSMBD_SHARE_FLAG_PIPE)) {
-		ksmbd_debug(SMB, "IPC pipe write request\n");
-		return smb2_write_pipe(work);
-	}
-
-	offset = le64_to_cpu(req->Offset);
-	length = le32_to_cpu(req->Length);
-
-	if (req->Channel == SMB2_CHANNEL_RDMA_V1 ||
-	    req->Channel == SMB2_CHANNEL_RDMA_V1_INVALIDATE) {
-		is_rdma_channel = true;
-		max_write_size = get_smbd_max_read_write_size();
-		length = le32_to_cpu(req->RemainingBytes);
-	}
-
-	if (is_rdma_channel == true) {
-		unsigned int ch_offset = le16_to_cpu(req->WriteChannelInfoOffset);
-
-		if (req->Length != 0 || req->DataOffset != 0 ||
-		    ch_offset < offsetof(struct smb2_write_req, Buffer)) {
-			err = -EINVAL;
-			goto out;
-		}
-		err = smb2_set_remote_key_for_rdma(work,
-						   (struct smb2_buffer_desc_v1 *)
-						   ((char *)req + ch_offset),
-						   req->Channel,
-						   req->WriteChannelInfoLength);
-		if (err)
-			goto out;
-	}
-
-	if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-		ksmbd_debug(SMB, "User does not have write permission\n");
-		err = -EACCES;
-		goto out;
-	}
-
-	fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId);
-	if (!fp) {
-		err = -ENOENT;
-		goto out;
-	}
-
-	if (!(fp->daccess & (FILE_WRITE_DATA_LE | FILE_READ_ATTRIBUTES_LE))) {
-		pr_err("Not permitted to write : 0x%x\n", fp->daccess);
-		err = -EACCES;
-		goto out;
-	}
-
-	if (length > max_write_size) {
-		ksmbd_debug(SMB, "limiting write size to max size(%u)\n",
-			    max_write_size);
-		err = -EINVAL;
-		goto out;
-	}
-
-	ksmbd_debug(SMB, "flags %u\n", le32_to_cpu(req->Flags));
-	if (le32_to_cpu(req->Flags) & SMB2_WRITEFLAG_WRITE_THROUGH)
-		writethrough = true;
-
-	if (is_rdma_channel == false) {
-		if (le16_to_cpu(req->DataOffset) <
-		    offsetof(struct smb2_write_req, Buffer)) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		data_buf = (char *)(((char *)&req->hdr.ProtocolId) +
-				    le16_to_cpu(req->DataOffset));
-
-		ksmbd_debug(SMB, "filename %pD, offset %lld, len %zu\n",
-			    fp->filp, offset, length);
-		err = ksmbd_vfs_write(work, fp, data_buf, length, &offset,
-				      writethrough, &nbytes);
-		if (err < 0)
-			goto out;
-	} else {
-		/* read data from the client using rdma channel, and
-		 * write the data.
-		 */
-		nbytes = smb2_write_rdma_channel(work, req, fp, offset, length,
-						 writethrough);
-		if (nbytes < 0) {
-			err = (int)nbytes;
-			goto out;
-		}
-	}
-
-	rsp->StructureSize = cpu_to_le16(17);
-	rsp->DataOffset = 0;
-	rsp->Reserved = 0;
-	rsp->DataLength = cpu_to_le32(nbytes);
-	rsp->DataRemaining = 0;
-	rsp->Reserved2 = 0;
-	inc_rfc1001_len(work->response_buf, 16);
-	ksmbd_fd_put(work, fp);
-	return 0;
-
-out:
-	if (err == -EAGAIN)
-		rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT;
-	else if (err == -ENOSPC || err == -EFBIG)
-		rsp->hdr.Status = STATUS_DISK_FULL;
-	else if (err == -ENOENT)
-		rsp->hdr.Status = STATUS_FILE_CLOSED;
-	else if (err == -EACCES)
-		rsp->hdr.Status = STATUS_ACCESS_DENIED;
-	else if (err == -ESHARE)
-		rsp->hdr.Status = STATUS_SHARING_VIOLATION;
-	else if (err == -EINVAL)
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-	else
-		rsp->hdr.Status = STATUS_INVALID_HANDLE;
-
-	smb2_set_err_rsp(work);
-	ksmbd_fd_put(work, fp);
-	return err;
-}
-
-/**
- * smb2_flush() - handler for smb2 flush file - fsync
- * @work:	smb work containing flush command buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_flush(struct ksmbd_work *work)
-{
-	struct smb2_flush_req *req;
-	struct smb2_flush_rsp *rsp;
-	int err;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	ksmbd_debug(SMB, "SMB2_FLUSH called for fid %llu\n", req->VolatileFileId);
-
-	err = ksmbd_vfs_fsync(work, req->VolatileFileId, req->PersistentFileId);
-	if (err)
-		goto out;
-
-	rsp->StructureSize = cpu_to_le16(4);
-	rsp->Reserved = 0;
-	inc_rfc1001_len(work->response_buf, 4);
-	return 0;
-
-out:
-	if (err) {
-		rsp->hdr.Status = STATUS_INVALID_HANDLE;
-		smb2_set_err_rsp(work);
-	}
-
-	return err;
-}
-
-/**
- * smb2_cancel() - handler for smb2 cancel command
- * @work:	smb work containing cancel command buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_cancel(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_hdr *hdr = smb2_get_msg(work->request_buf);
-	struct smb2_hdr *chdr;
-	struct ksmbd_work *iter;
-	struct list_head *command_list;
-
-	ksmbd_debug(SMB, "smb2 cancel called on mid %llu, async flags 0x%x\n",
-		    hdr->MessageId, hdr->Flags);
-
-	if (hdr->Flags & SMB2_FLAGS_ASYNC_COMMAND) {
-		command_list = &conn->async_requests;
-
-		spin_lock(&conn->request_lock);
-		list_for_each_entry(iter, command_list,
-				    async_request_entry) {
-			chdr = smb2_get_msg(iter->request_buf);
-
-			if (iter->async_id !=
-			    le64_to_cpu(hdr->Id.AsyncId))
-				continue;
-
-			ksmbd_debug(SMB,
-				    "smb2 with AsyncId %llu cancelled command = 0x%x\n",
-				    le64_to_cpu(hdr->Id.AsyncId),
-				    le16_to_cpu(chdr->Command));
-			iter->state = KSMBD_WORK_CANCELLED;
-			if (iter->cancel_fn)
-				iter->cancel_fn(iter->cancel_argv);
-			break;
-		}
-		spin_unlock(&conn->request_lock);
-	} else {
-		command_list = &conn->requests;
-
-		spin_lock(&conn->request_lock);
-		list_for_each_entry(iter, command_list, request_entry) {
-			chdr = smb2_get_msg(iter->request_buf);
-
-			if (chdr->MessageId != hdr->MessageId ||
-			    iter == work)
-				continue;
-
-			ksmbd_debug(SMB,
-				    "smb2 with mid %llu cancelled command = 0x%x\n",
-				    le64_to_cpu(hdr->MessageId),
-				    le16_to_cpu(chdr->Command));
-			iter->state = KSMBD_WORK_CANCELLED;
-			break;
-		}
-		spin_unlock(&conn->request_lock);
-	}
-
-	/* For SMB2_CANCEL command itself send no response*/
-	work->send_no_response = 1;
-	return 0;
-}
-
-struct file_lock *smb_flock_init(struct file *f)
-{
-	struct file_lock *fl;
-
-	fl = locks_alloc_lock();
-	if (!fl)
-		goto out;
-
-	locks_init_lock(fl);
-
-	fl->fl_owner = f;
-	fl->fl_pid = current->tgid;
-	fl->fl_file = f;
-	fl->fl_flags = FL_POSIX;
-	fl->fl_ops = NULL;
-	fl->fl_lmops = NULL;
-
-out:
-	return fl;
-}
-
-static int smb2_set_flock_flags(struct file_lock *flock, int flags)
-{
-	int cmd = -EINVAL;
-
-	/* Checking for wrong flag combination during lock request*/
-	switch (flags) {
-	case SMB2_LOCKFLAG_SHARED:
-		ksmbd_debug(SMB, "received shared request\n");
-		cmd = F_SETLKW;
-		flock->fl_type = F_RDLCK;
-		flock->fl_flags |= FL_SLEEP;
-		break;
-	case SMB2_LOCKFLAG_EXCLUSIVE:
-		ksmbd_debug(SMB, "received exclusive request\n");
-		cmd = F_SETLKW;
-		flock->fl_type = F_WRLCK;
-		flock->fl_flags |= FL_SLEEP;
-		break;
-	case SMB2_LOCKFLAG_SHARED | SMB2_LOCKFLAG_FAIL_IMMEDIATELY:
-		ksmbd_debug(SMB,
-			    "received shared & fail immediately request\n");
-		cmd = F_SETLK;
-		flock->fl_type = F_RDLCK;
-		break;
-	case SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_FAIL_IMMEDIATELY:
-		ksmbd_debug(SMB,
-			    "received exclusive & fail immediately request\n");
-		cmd = F_SETLK;
-		flock->fl_type = F_WRLCK;
-		break;
-	case SMB2_LOCKFLAG_UNLOCK:
-		ksmbd_debug(SMB, "received unlock request\n");
-		flock->fl_type = F_UNLCK;
-		cmd = F_SETLK;
-		break;
-	}
-
-	return cmd;
-}
-
-static struct ksmbd_lock *smb2_lock_init(struct file_lock *flock,
-					 unsigned int cmd, int flags,
-					 struct list_head *lock_list)
-{
-	struct ksmbd_lock *lock;
-
-	lock = kzalloc(sizeof(struct ksmbd_lock), GFP_KERNEL);
-	if (!lock)
-		return NULL;
-
-	lock->cmd = cmd;
-	lock->fl = flock;
-	lock->start = flock->fl_start;
-	lock->end = flock->fl_end;
-	lock->flags = flags;
-	if (lock->start == lock->end)
-		lock->zero_len = 1;
-	INIT_LIST_HEAD(&lock->clist);
-	INIT_LIST_HEAD(&lock->flist);
-	INIT_LIST_HEAD(&lock->llist);
-	list_add_tail(&lock->llist, lock_list);
-
-	return lock;
-}
-
-static void smb2_remove_blocked_lock(void **argv)
-{
-	struct file_lock *flock = (struct file_lock *)argv[0];
-
-	ksmbd_vfs_posix_lock_unblock(flock);
-	wake_up(&flock->fl_wait);
-}
-
-static inline bool lock_defer_pending(struct file_lock *fl)
-{
-	/* check pending lock waiters */
-	return waitqueue_active(&fl->fl_wait);
-}
-
-/**
- * smb2_lock() - handler for smb2 file lock command
- * @work:	smb work containing lock command buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_lock(struct ksmbd_work *work)
-{
-	struct smb2_lock_req *req = smb2_get_msg(work->request_buf);
-	struct smb2_lock_rsp *rsp = smb2_get_msg(work->response_buf);
-	struct smb2_lock_element *lock_ele;
-	struct ksmbd_file *fp = NULL;
-	struct file_lock *flock = NULL;
-	struct file *filp = NULL;
-	int lock_count;
-	int flags = 0;
-	int cmd = 0;
-	int err = -EIO, i, rc = 0;
-	u64 lock_start, lock_length;
-	struct ksmbd_lock *smb_lock = NULL, *cmp_lock, *tmp, *tmp2;
-	struct ksmbd_conn *conn;
-	int nolock = 0;
-	LIST_HEAD(lock_list);
-	LIST_HEAD(rollback_list);
-	int prior_lock = 0;
-
-	ksmbd_debug(SMB, "Received lock request\n");
-	fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId);
-	if (!fp) {
-		ksmbd_debug(SMB, "Invalid file id for lock : %llu\n", req->VolatileFileId);
-		err = -ENOENT;
-		goto out2;
-	}
-
-	filp = fp->filp;
-	lock_count = le16_to_cpu(req->LockCount);
-	lock_ele = req->locks;
-
-	ksmbd_debug(SMB, "lock count is %d\n", lock_count);
-	if (!lock_count) {
-		err = -EINVAL;
-		goto out2;
-	}
-
-	for (i = 0; i < lock_count; i++) {
-		flags = le32_to_cpu(lock_ele[i].Flags);
-
-		flock = smb_flock_init(filp);
-		if (!flock)
-			goto out;
-
-		cmd = smb2_set_flock_flags(flock, flags);
-
-		lock_start = le64_to_cpu(lock_ele[i].Offset);
-		lock_length = le64_to_cpu(lock_ele[i].Length);
-		if (lock_start > U64_MAX - lock_length) {
-			pr_err("Invalid lock range requested\n");
-			rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE;
-			locks_free_lock(flock);
-			goto out;
-		}
-
-		if (lock_start > OFFSET_MAX)
-			flock->fl_start = OFFSET_MAX;
-		else
-			flock->fl_start = lock_start;
-
-		lock_length = le64_to_cpu(lock_ele[i].Length);
-		if (lock_length > OFFSET_MAX - flock->fl_start)
-			lock_length = OFFSET_MAX - flock->fl_start;
-
-		flock->fl_end = flock->fl_start + lock_length;
-
-		if (flock->fl_end < flock->fl_start) {
-			ksmbd_debug(SMB,
-				    "the end offset(%llx) is smaller than the start offset(%llx)\n",
-				    flock->fl_end, flock->fl_start);
-			rsp->hdr.Status = STATUS_INVALID_LOCK_RANGE;
-			locks_free_lock(flock);
-			goto out;
-		}
-
-		/* Check conflict locks in one request */
-		list_for_each_entry(cmp_lock, &lock_list, llist) {
-			if (cmp_lock->fl->fl_start <= flock->fl_start &&
-			    cmp_lock->fl->fl_end >= flock->fl_end) {
-				if (cmp_lock->fl->fl_type != F_UNLCK &&
-				    flock->fl_type != F_UNLCK) {
-					pr_err("conflict two locks in one request\n");
-					err = -EINVAL;
-					locks_free_lock(flock);
-					goto out;
-				}
-			}
-		}
-
-		smb_lock = smb2_lock_init(flock, cmd, flags, &lock_list);
-		if (!smb_lock) {
-			err = -EINVAL;
-			locks_free_lock(flock);
-			goto out;
-		}
-	}
-
-	list_for_each_entry_safe(smb_lock, tmp, &lock_list, llist) {
-		if (smb_lock->cmd < 0) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		if (!(smb_lock->flags & SMB2_LOCKFLAG_MASK)) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		if ((prior_lock & (SMB2_LOCKFLAG_EXCLUSIVE | SMB2_LOCKFLAG_SHARED) &&
-		     smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) ||
-		    (prior_lock == SMB2_LOCKFLAG_UNLOCK &&
-		     !(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK))) {
-			err = -EINVAL;
-			goto out;
-		}
-
-		prior_lock = smb_lock->flags;
-
-		if (!(smb_lock->flags & SMB2_LOCKFLAG_UNLOCK) &&
-		    !(smb_lock->flags & SMB2_LOCKFLAG_FAIL_IMMEDIATELY))
-			goto no_check_cl;
-
-		nolock = 1;
-		/* check locks in connection list */
-		down_read(&conn_list_lock);
-		list_for_each_entry(conn, &conn_list, conns_list) {
-			spin_lock(&conn->llist_lock);
-			list_for_each_entry_safe(cmp_lock, tmp2, &conn->lock_list, clist) {
-				if (file_inode(cmp_lock->fl->fl_file) !=
-				    file_inode(smb_lock->fl->fl_file))
-					continue;
-
-				if (smb_lock->fl->fl_type == F_UNLCK) {
-					if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file &&
-					    cmp_lock->start == smb_lock->start &&
-					    cmp_lock->end == smb_lock->end &&
-					    !lock_defer_pending(cmp_lock->fl)) {
-						nolock = 0;
-						list_del(&cmp_lock->flist);
-						list_del(&cmp_lock->clist);
-						spin_unlock(&conn->llist_lock);
-						up_read(&conn_list_lock);
-
-						locks_free_lock(cmp_lock->fl);
-						kfree(cmp_lock);
-						goto out_check_cl;
-					}
-					continue;
-				}
-
-				if (cmp_lock->fl->fl_file == smb_lock->fl->fl_file) {
-					if (smb_lock->flags & SMB2_LOCKFLAG_SHARED)
-						continue;
-				} else {
-					if (cmp_lock->flags & SMB2_LOCKFLAG_SHARED)
-						continue;
-				}
-
-				/* check zero byte lock range */
-				if (cmp_lock->zero_len && !smb_lock->zero_len &&
-				    cmp_lock->start > smb_lock->start &&
-				    cmp_lock->start < smb_lock->end) {
-					spin_unlock(&conn->llist_lock);
-					up_read(&conn_list_lock);
-					pr_err("previous lock conflict with zero byte lock range\n");
-					goto out;
-				}
-
-				if (smb_lock->zero_len && !cmp_lock->zero_len &&
-				    smb_lock->start > cmp_lock->start &&
-				    smb_lock->start < cmp_lock->end) {
-					spin_unlock(&conn->llist_lock);
-					up_read(&conn_list_lock);
-					pr_err("current lock conflict with zero byte lock range\n");
-					goto out;
-				}
-
-				if (((cmp_lock->start <= smb_lock->start &&
-				      cmp_lock->end > smb_lock->start) ||
-				     (cmp_lock->start < smb_lock->end &&
-				      cmp_lock->end >= smb_lock->end)) &&
-				    !cmp_lock->zero_len && !smb_lock->zero_len) {
-					spin_unlock(&conn->llist_lock);
-					up_read(&conn_list_lock);
-					pr_err("Not allow lock operation on exclusive lock range\n");
-					goto out;
-				}
-			}
-			spin_unlock(&conn->llist_lock);
-		}
-		up_read(&conn_list_lock);
-out_check_cl:
-		if (smb_lock->fl->fl_type == F_UNLCK && nolock) {
-			pr_err("Try to unlock nolocked range\n");
-			rsp->hdr.Status = STATUS_RANGE_NOT_LOCKED;
-			goto out;
-		}
-
-no_check_cl:
-		if (smb_lock->zero_len) {
-			err = 0;
-			goto skip;
-		}
-
-		flock = smb_lock->fl;
-		list_del(&smb_lock->llist);
-retry:
-		rc = vfs_lock_file(filp, smb_lock->cmd, flock, NULL);
-skip:
-		if (flags & SMB2_LOCKFLAG_UNLOCK) {
-			if (!rc) {
-				ksmbd_debug(SMB, "File unlocked\n");
-			} else if (rc == -ENOENT) {
-				rsp->hdr.Status = STATUS_NOT_LOCKED;
-				goto out;
-			}
-			locks_free_lock(flock);
-			kfree(smb_lock);
-		} else {
-			if (rc == FILE_LOCK_DEFERRED) {
-				void **argv;
-
-				ksmbd_debug(SMB,
-					    "would have to wait for getting lock\n");
-				spin_lock(&work->conn->llist_lock);
-				list_add_tail(&smb_lock->clist,
-					      &work->conn->lock_list);
-				spin_unlock(&work->conn->llist_lock);
-				list_add(&smb_lock->llist, &rollback_list);
-
-				argv = kmalloc(sizeof(void *), GFP_KERNEL);
-				if (!argv) {
-					err = -ENOMEM;
-					goto out;
-				}
-				argv[0] = flock;
-
-				rc = setup_async_work(work,
-						      smb2_remove_blocked_lock,
-						      argv);
-				if (rc) {
-					err = -ENOMEM;
-					goto out;
-				}
-				spin_lock(&fp->f_lock);
-				list_add(&work->fp_entry, &fp->blocked_works);
-				spin_unlock(&fp->f_lock);
-
-				smb2_send_interim_resp(work, STATUS_PENDING);
-
-				ksmbd_vfs_posix_lock_wait(flock);
-
-				spin_lock(&fp->f_lock);
-				list_del(&work->fp_entry);
-				spin_unlock(&fp->f_lock);
-
-				if (work->state != KSMBD_WORK_ACTIVE) {
-					list_del(&smb_lock->llist);
-					spin_lock(&work->conn->llist_lock);
-					list_del(&smb_lock->clist);
-					spin_unlock(&work->conn->llist_lock);
-					locks_free_lock(flock);
-
-					if (work->state == KSMBD_WORK_CANCELLED) {
-						rsp->hdr.Status =
-							STATUS_CANCELLED;
-						kfree(smb_lock);
-						smb2_send_interim_resp(work,
-								       STATUS_CANCELLED);
-						work->send_no_response = 1;
-						goto out;
-					}
-
-					init_smb2_rsp_hdr(work);
-					smb2_set_err_rsp(work);
-					rsp->hdr.Status =
-						STATUS_RANGE_NOT_LOCKED;
-					kfree(smb_lock);
-					goto out2;
-				}
-
-				list_del(&smb_lock->llist);
-				spin_lock(&work->conn->llist_lock);
-				list_del(&smb_lock->clist);
-				spin_unlock(&work->conn->llist_lock);
-				release_async_work(work);
-				goto retry;
-			} else if (!rc) {
-				spin_lock(&work->conn->llist_lock);
-				list_add_tail(&smb_lock->clist,
-					      &work->conn->lock_list);
-				list_add_tail(&smb_lock->flist,
-					      &fp->lock_list);
-				spin_unlock(&work->conn->llist_lock);
-				list_add(&smb_lock->llist, &rollback_list);
-				ksmbd_debug(SMB, "successful in taking lock\n");
-			} else {
-				goto out;
-			}
-		}
-	}
-
-	if (atomic_read(&fp->f_ci->op_count) > 1)
-		smb_break_all_oplock(work, fp);
-
-	rsp->StructureSize = cpu_to_le16(4);
-	ksmbd_debug(SMB, "successful in taking lock\n");
-	rsp->hdr.Status = STATUS_SUCCESS;
-	rsp->Reserved = 0;
-	inc_rfc1001_len(work->response_buf, 4);
-	ksmbd_fd_put(work, fp);
-	return 0;
-
-out:
-	list_for_each_entry_safe(smb_lock, tmp, &lock_list, llist) {
-		locks_free_lock(smb_lock->fl);
-		list_del(&smb_lock->llist);
-		kfree(smb_lock);
-	}
-
-	list_for_each_entry_safe(smb_lock, tmp, &rollback_list, llist) {
-		struct file_lock *rlock = NULL;
-
-		rlock = smb_flock_init(filp);
-		rlock->fl_type = F_UNLCK;
-		rlock->fl_start = smb_lock->start;
-		rlock->fl_end = smb_lock->end;
-
-		rc = vfs_lock_file(filp, F_SETLK, rlock, NULL);
-		if (rc)
-			pr_err("rollback unlock fail : %d\n", rc);
-
-		list_del(&smb_lock->llist);
-		spin_lock(&work->conn->llist_lock);
-		if (!list_empty(&smb_lock->flist))
-			list_del(&smb_lock->flist);
-		list_del(&smb_lock->clist);
-		spin_unlock(&work->conn->llist_lock);
-
-		locks_free_lock(smb_lock->fl);
-		locks_free_lock(rlock);
-		kfree(smb_lock);
-	}
-out2:
-	ksmbd_debug(SMB, "failed in taking lock(flags : %x), err : %d\n", flags, err);
-
-	if (!rsp->hdr.Status) {
-		if (err == -EINVAL)
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		else if (err == -ENOMEM)
-			rsp->hdr.Status = STATUS_INSUFFICIENT_RESOURCES;
-		else if (err == -ENOENT)
-			rsp->hdr.Status = STATUS_FILE_CLOSED;
-		else
-			rsp->hdr.Status = STATUS_LOCK_NOT_GRANTED;
-	}
-
-	smb2_set_err_rsp(work);
-	ksmbd_fd_put(work, fp);
-	return err;
-}
-
-static int fsctl_copychunk(struct ksmbd_work *work,
-			   struct copychunk_ioctl_req *ci_req,
-			   unsigned int cnt_code,
-			   unsigned int input_count,
-			   unsigned long long volatile_id,
-			   unsigned long long persistent_id,
-			   struct smb2_ioctl_rsp *rsp)
-{
-	struct copychunk_ioctl_rsp *ci_rsp;
-	struct ksmbd_file *src_fp = NULL, *dst_fp = NULL;
-	struct srv_copychunk *chunks;
-	unsigned int i, chunk_count, chunk_count_written = 0;
-	unsigned int chunk_size_written = 0;
-	loff_t total_size_written = 0;
-	int ret = 0;
-
-	ci_rsp = (struct copychunk_ioctl_rsp *)&rsp->Buffer[0];
-
-	rsp->VolatileFileId = volatile_id;
-	rsp->PersistentFileId = persistent_id;
-	ci_rsp->ChunksWritten =
-		cpu_to_le32(ksmbd_server_side_copy_max_chunk_count());
-	ci_rsp->ChunkBytesWritten =
-		cpu_to_le32(ksmbd_server_side_copy_max_chunk_size());
-	ci_rsp->TotalBytesWritten =
-		cpu_to_le32(ksmbd_server_side_copy_max_total_size());
-
-	chunks = (struct srv_copychunk *)&ci_req->Chunks[0];
-	chunk_count = le32_to_cpu(ci_req->ChunkCount);
-	if (chunk_count == 0)
-		goto out;
-	total_size_written = 0;
-
-	/* verify the SRV_COPYCHUNK_COPY packet */
-	if (chunk_count > ksmbd_server_side_copy_max_chunk_count() ||
-	    input_count < offsetof(struct copychunk_ioctl_req, Chunks) +
-	     chunk_count * sizeof(struct srv_copychunk)) {
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		return -EINVAL;
-	}
-
-	for (i = 0; i < chunk_count; i++) {
-		if (le32_to_cpu(chunks[i].Length) == 0 ||
-		    le32_to_cpu(chunks[i].Length) > ksmbd_server_side_copy_max_chunk_size())
-			break;
-		total_size_written += le32_to_cpu(chunks[i].Length);
-	}
-
-	if (i < chunk_count ||
-	    total_size_written > ksmbd_server_side_copy_max_total_size()) {
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		return -EINVAL;
-	}
-
-	src_fp = ksmbd_lookup_foreign_fd(work,
-					 le64_to_cpu(ci_req->ResumeKey[0]));
-	dst_fp = ksmbd_lookup_fd_slow(work, volatile_id, persistent_id);
-	ret = -EINVAL;
-	if (!src_fp ||
-	    src_fp->persistent_id != le64_to_cpu(ci_req->ResumeKey[1])) {
-		rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND;
-		goto out;
-	}
-
-	if (!dst_fp) {
-		rsp->hdr.Status = STATUS_FILE_CLOSED;
-		goto out;
-	}
-
-	/*
-	 * FILE_READ_DATA should only be included in
-	 * the FSCTL_COPYCHUNK case
-	 */
-	if (cnt_code == FSCTL_COPYCHUNK &&
-	    !(dst_fp->daccess & (FILE_READ_DATA_LE | FILE_GENERIC_READ_LE))) {
-		rsp->hdr.Status = STATUS_ACCESS_DENIED;
-		goto out;
-	}
-
-	ret = ksmbd_vfs_copy_file_ranges(work, src_fp, dst_fp,
-					 chunks, chunk_count,
-					 &chunk_count_written,
-					 &chunk_size_written,
-					 &total_size_written);
-	if (ret < 0) {
-		if (ret == -EACCES)
-			rsp->hdr.Status = STATUS_ACCESS_DENIED;
-		if (ret == -EAGAIN)
-			rsp->hdr.Status = STATUS_FILE_LOCK_CONFLICT;
-		else if (ret == -EBADF)
-			rsp->hdr.Status = STATUS_INVALID_HANDLE;
-		else if (ret == -EFBIG || ret == -ENOSPC)
-			rsp->hdr.Status = STATUS_DISK_FULL;
-		else if (ret == -EINVAL)
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		else if (ret == -EISDIR)
-			rsp->hdr.Status = STATUS_FILE_IS_A_DIRECTORY;
-		else if (ret == -E2BIG)
-			rsp->hdr.Status = STATUS_INVALID_VIEW_SIZE;
-		else
-			rsp->hdr.Status = STATUS_UNEXPECTED_IO_ERROR;
-	}
-
-	ci_rsp->ChunksWritten = cpu_to_le32(chunk_count_written);
-	ci_rsp->ChunkBytesWritten = cpu_to_le32(chunk_size_written);
-	ci_rsp->TotalBytesWritten = cpu_to_le32(total_size_written);
-out:
-	ksmbd_fd_put(work, src_fp);
-	ksmbd_fd_put(work, dst_fp);
-	return ret;
-}
-
-static __be32 idev_ipv4_address(struct in_device *idev)
-{
-	__be32 addr = 0;
-
-	struct in_ifaddr *ifa;
-
-	rcu_read_lock();
-	in_dev_for_each_ifa_rcu(ifa, idev) {
-		if (ifa->ifa_flags & IFA_F_SECONDARY)
-			continue;
-
-		addr = ifa->ifa_address;
-		break;
-	}
-	rcu_read_unlock();
-	return addr;
-}
-
-static int fsctl_query_iface_info_ioctl(struct ksmbd_conn *conn,
-					struct smb2_ioctl_rsp *rsp,
-					unsigned int out_buf_len)
-{
-	struct network_interface_info_ioctl_rsp *nii_rsp = NULL;
-	int nbytes = 0;
-	struct net_device *netdev;
-	struct sockaddr_storage_rsp *sockaddr_storage;
-	unsigned int flags;
-	unsigned long long speed;
-
-	rtnl_lock();
-	for_each_netdev(&init_net, netdev) {
-		bool ipv4_set = false;
-
-		if (netdev->type == ARPHRD_LOOPBACK)
-			continue;
-
-		flags = dev_get_flags(netdev);
-		if (!(flags & IFF_RUNNING))
-			continue;
-ipv6_retry:
-		if (out_buf_len <
-		    nbytes + sizeof(struct network_interface_info_ioctl_rsp)) {
-			rtnl_unlock();
-			return -ENOSPC;
-		}
-
-		nii_rsp = (struct network_interface_info_ioctl_rsp *)
-				&rsp->Buffer[nbytes];
-		nii_rsp->IfIndex = cpu_to_le32(netdev->ifindex);
-
-		nii_rsp->Capability = 0;
-		if (netdev->real_num_tx_queues > 1)
-			nii_rsp->Capability |= cpu_to_le32(RSS_CAPABLE);
-		if (ksmbd_rdma_capable_netdev(netdev))
-			nii_rsp->Capability |= cpu_to_le32(RDMA_CAPABLE);
-
-		nii_rsp->Next = cpu_to_le32(152);
-		nii_rsp->Reserved = 0;
-
-		if (netdev->ethtool_ops->get_link_ksettings) {
-			struct ethtool_link_ksettings cmd;
-
-			netdev->ethtool_ops->get_link_ksettings(netdev, &cmd);
-			speed = cmd.base.speed;
-		} else {
-			ksmbd_debug(SMB, "%s %s\n", netdev->name,
-				    "speed is unknown, defaulting to 1Gb/sec");
-			speed = SPEED_1000;
-		}
-
-		speed *= 1000000;
-		nii_rsp->LinkSpeed = cpu_to_le64(speed);
-
-		sockaddr_storage = (struct sockaddr_storage_rsp *)
-					nii_rsp->SockAddr_Storage;
-		memset(sockaddr_storage, 0, 128);
-
-		if (!ipv4_set) {
-			struct in_device *idev;
-
-			sockaddr_storage->Family = cpu_to_le16(INTERNETWORK);
-			sockaddr_storage->addr4.Port = 0;
-
-			idev = __in_dev_get_rtnl(netdev);
-			if (!idev)
-				continue;
-			sockaddr_storage->addr4.IPv4address =
-						idev_ipv4_address(idev);
-			nbytes += sizeof(struct network_interface_info_ioctl_rsp);
-			ipv4_set = true;
-			goto ipv6_retry;
-		} else {
-			struct inet6_dev *idev6;
-			struct inet6_ifaddr *ifa;
-			__u8 *ipv6_addr = sockaddr_storage->addr6.IPv6address;
-
-			sockaddr_storage->Family = cpu_to_le16(INTERNETWORKV6);
-			sockaddr_storage->addr6.Port = 0;
-			sockaddr_storage->addr6.FlowInfo = 0;
-
-			idev6 = __in6_dev_get(netdev);
-			if (!idev6)
-				continue;
-
-			list_for_each_entry(ifa, &idev6->addr_list, if_list) {
-				if (ifa->flags & (IFA_F_TENTATIVE |
-							IFA_F_DEPRECATED))
-					continue;
-				memcpy(ipv6_addr, ifa->addr.s6_addr, 16);
-				break;
-			}
-			sockaddr_storage->addr6.ScopeId = 0;
-			nbytes += sizeof(struct network_interface_info_ioctl_rsp);
-		}
-	}
-	rtnl_unlock();
-
-	/* zero if this is last one */
-	if (nii_rsp)
-		nii_rsp->Next = 0;
-
-	rsp->PersistentFileId = SMB2_NO_FID;
-	rsp->VolatileFileId = SMB2_NO_FID;
-	return nbytes;
-}
-
-static int fsctl_validate_negotiate_info(struct ksmbd_conn *conn,
-					 struct validate_negotiate_info_req *neg_req,
-					 struct validate_negotiate_info_rsp *neg_rsp,
-					 unsigned int in_buf_len)
-{
-	int ret = 0;
-	int dialect;
-
-	if (in_buf_len < offsetof(struct validate_negotiate_info_req, Dialects) +
-			le16_to_cpu(neg_req->DialectCount) * sizeof(__le16))
-		return -EINVAL;
-
-	dialect = ksmbd_lookup_dialect_by_id(neg_req->Dialects,
-					     neg_req->DialectCount);
-	if (dialect == BAD_PROT_ID || dialect != conn->dialect) {
-		ret = -EINVAL;
-		goto err_out;
-	}
-
-	if (strncmp(neg_req->Guid, conn->ClientGUID, SMB2_CLIENT_GUID_SIZE)) {
-		ret = -EINVAL;
-		goto err_out;
-	}
-
-	if (le16_to_cpu(neg_req->SecurityMode) != conn->cli_sec_mode) {
-		ret = -EINVAL;
-		goto err_out;
-	}
-
-	if (le32_to_cpu(neg_req->Capabilities) != conn->cli_cap) {
-		ret = -EINVAL;
-		goto err_out;
-	}
-
-	neg_rsp->Capabilities = cpu_to_le32(conn->vals->capabilities);
-	memset(neg_rsp->Guid, 0, SMB2_CLIENT_GUID_SIZE);
-	neg_rsp->SecurityMode = cpu_to_le16(conn->srv_sec_mode);
-	neg_rsp->Dialect = cpu_to_le16(conn->dialect);
-err_out:
-	return ret;
-}
-
-static int fsctl_query_allocated_ranges(struct ksmbd_work *work, u64 id,
-					struct file_allocated_range_buffer *qar_req,
-					struct file_allocated_range_buffer *qar_rsp,
-					unsigned int in_count, unsigned int *out_count)
-{
-	struct ksmbd_file *fp;
-	loff_t start, length;
-	int ret = 0;
-
-	*out_count = 0;
-	if (in_count == 0)
-		return -EINVAL;
-
-	start = le64_to_cpu(qar_req->file_offset);
-	length = le64_to_cpu(qar_req->length);
-
-	if (start < 0 || length < 0)
-		return -EINVAL;
-
-	fp = ksmbd_lookup_fd_fast(work, id);
-	if (!fp)
-		return -ENOENT;
-
-	ret = ksmbd_vfs_fqar_lseek(fp, start, length,
-				   qar_rsp, in_count, out_count);
-	if (ret && ret != -E2BIG)
-		*out_count = 0;
-
-	ksmbd_fd_put(work, fp);
-	return ret;
-}
-
-static int fsctl_pipe_transceive(struct ksmbd_work *work, u64 id,
-				 unsigned int out_buf_len,
-				 struct smb2_ioctl_req *req,
-				 struct smb2_ioctl_rsp *rsp)
-{
-	struct ksmbd_rpc_command *rpc_resp;
-	char *data_buf = (char *)&req->Buffer[0];
-	int nbytes = 0;
-
-	rpc_resp = ksmbd_rpc_ioctl(work->sess, id, data_buf,
-				   le32_to_cpu(req->InputCount));
-	if (rpc_resp) {
-		if (rpc_resp->flags == KSMBD_RPC_SOME_NOT_MAPPED) {
-			/*
-			 * set STATUS_SOME_NOT_MAPPED response
-			 * for unknown domain sid.
-			 */
-			rsp->hdr.Status = STATUS_SOME_NOT_MAPPED;
-		} else if (rpc_resp->flags == KSMBD_RPC_ENOTIMPLEMENTED) {
-			rsp->hdr.Status = STATUS_NOT_SUPPORTED;
-			goto out;
-		} else if (rpc_resp->flags != KSMBD_RPC_OK) {
-			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-			goto out;
-		}
-
-		nbytes = rpc_resp->payload_sz;
-		if (rpc_resp->payload_sz > out_buf_len) {
-			rsp->hdr.Status = STATUS_BUFFER_OVERFLOW;
-			nbytes = out_buf_len;
-		}
-
-		if (!rpc_resp->payload_sz) {
-			rsp->hdr.Status =
-				STATUS_UNEXPECTED_IO_ERROR;
-			goto out;
-		}
-
-		memcpy((char *)rsp->Buffer, rpc_resp->payload, nbytes);
-	}
-out:
-	kvfree(rpc_resp);
-	return nbytes;
-}
-
-static inline int fsctl_set_sparse(struct ksmbd_work *work, u64 id,
-				   struct file_sparse *sparse)
-{
-	struct ksmbd_file *fp;
-	struct mnt_idmap *idmap;
-	int ret = 0;
-	__le32 old_fattr;
-
-	fp = ksmbd_lookup_fd_fast(work, id);
-	if (!fp)
-		return -ENOENT;
-	idmap = file_mnt_idmap(fp->filp);
-
-	old_fattr = fp->f_ci->m_fattr;
-	if (sparse->SetSparse)
-		fp->f_ci->m_fattr |= FILE_ATTRIBUTE_SPARSE_FILE_LE;
-	else
-		fp->f_ci->m_fattr &= ~FILE_ATTRIBUTE_SPARSE_FILE_LE;
-
-	if (fp->f_ci->m_fattr != old_fattr &&
-	    test_share_config_flag(work->tcon->share_conf,
-				   KSMBD_SHARE_FLAG_STORE_DOS_ATTRS)) {
-		struct xattr_dos_attrib da;
-
-		ret = ksmbd_vfs_get_dos_attrib_xattr(idmap,
-						     fp->filp->f_path.dentry, &da);
-		if (ret <= 0)
-			goto out;
-
-		da.attr = le32_to_cpu(fp->f_ci->m_fattr);
-		ret = ksmbd_vfs_set_dos_attrib_xattr(idmap,
-						     fp->filp->f_path.dentry, &da);
-		if (ret)
-			fp->f_ci->m_fattr = old_fattr;
-	}
-
-out:
-	ksmbd_fd_put(work, fp);
-	return ret;
-}
-
-static int fsctl_request_resume_key(struct ksmbd_work *work,
-				    struct smb2_ioctl_req *req,
-				    struct resume_key_ioctl_rsp *key_rsp)
-{
-	struct ksmbd_file *fp;
-
-	fp = ksmbd_lookup_fd_slow(work, req->VolatileFileId, req->PersistentFileId);
-	if (!fp)
-		return -ENOENT;
-
-	memset(key_rsp, 0, sizeof(*key_rsp));
-	key_rsp->ResumeKey[0] = req->VolatileFileId;
-	key_rsp->ResumeKey[1] = req->PersistentFileId;
-	ksmbd_fd_put(work, fp);
-
-	return 0;
-}
-
-/**
- * smb2_ioctl() - handler for smb2 ioctl command
- * @work:	smb work containing ioctl command buffer
- *
- * Return:	0 on success, otherwise error
- */
-int smb2_ioctl(struct ksmbd_work *work)
-{
-	struct smb2_ioctl_req *req;
-	struct smb2_ioctl_rsp *rsp;
-	unsigned int cnt_code, nbytes = 0, out_buf_len, in_buf_len;
-	u64 id = KSMBD_NO_FID;
-	struct ksmbd_conn *conn = work->conn;
-	int ret = 0;
-
-	if (work->next_smb2_rcv_hdr_off) {
-		req = ksmbd_req_buf_next(work);
-		rsp = ksmbd_resp_buf_next(work);
-		if (!has_file_id(req->VolatileFileId)) {
-			ksmbd_debug(SMB, "Compound request set FID = %llu\n",
-				    work->compound_fid);
-			id = work->compound_fid;
-		}
-	} else {
-		req = smb2_get_msg(work->request_buf);
-		rsp = smb2_get_msg(work->response_buf);
-	}
-
-	if (!has_file_id(id))
-		id = req->VolatileFileId;
-
-	if (req->Flags != cpu_to_le32(SMB2_0_IOCTL_IS_FSCTL)) {
-		rsp->hdr.Status = STATUS_NOT_SUPPORTED;
-		goto out;
-	}
-
-	cnt_code = le32_to_cpu(req->CtlCode);
-	ret = smb2_calc_max_out_buf_len(work, 48,
-					le32_to_cpu(req->MaxOutputResponse));
-	if (ret < 0) {
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		goto out;
-	}
-	out_buf_len = (unsigned int)ret;
-	in_buf_len = le32_to_cpu(req->InputCount);
-
-	switch (cnt_code) {
-	case FSCTL_DFS_GET_REFERRALS:
-	case FSCTL_DFS_GET_REFERRALS_EX:
-		/* Not support DFS yet */
-		rsp->hdr.Status = STATUS_FS_DRIVER_REQUIRED;
-		goto out;
-	case FSCTL_CREATE_OR_GET_OBJECT_ID:
-	{
-		struct file_object_buf_type1_ioctl_rsp *obj_buf;
-
-		nbytes = sizeof(struct file_object_buf_type1_ioctl_rsp);
-		obj_buf = (struct file_object_buf_type1_ioctl_rsp *)
-			&rsp->Buffer[0];
-
-		/*
-		 * TODO: This is dummy implementation to pass smbtorture
-		 * Need to check correct response later
-		 */
-		memset(obj_buf->ObjectId, 0x0, 16);
-		memset(obj_buf->BirthVolumeId, 0x0, 16);
-		memset(obj_buf->BirthObjectId, 0x0, 16);
-		memset(obj_buf->DomainId, 0x0, 16);
-
-		break;
-	}
-	case FSCTL_PIPE_TRANSCEIVE:
-		out_buf_len = min_t(u32, KSMBD_IPC_MAX_PAYLOAD, out_buf_len);
-		nbytes = fsctl_pipe_transceive(work, id, out_buf_len, req, rsp);
-		break;
-	case FSCTL_VALIDATE_NEGOTIATE_INFO:
-		if (conn->dialect < SMB30_PROT_ID) {
-			ret = -EOPNOTSUPP;
-			goto out;
-		}
-
-		if (in_buf_len < offsetof(struct validate_negotiate_info_req,
-					  Dialects)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		if (out_buf_len < sizeof(struct validate_negotiate_info_rsp)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		ret = fsctl_validate_negotiate_info(conn,
-			(struct validate_negotiate_info_req *)&req->Buffer[0],
-			(struct validate_negotiate_info_rsp *)&rsp->Buffer[0],
-			in_buf_len);
-		if (ret < 0)
-			goto out;
-
-		nbytes = sizeof(struct validate_negotiate_info_rsp);
-		rsp->PersistentFileId = SMB2_NO_FID;
-		rsp->VolatileFileId = SMB2_NO_FID;
-		break;
-	case FSCTL_QUERY_NETWORK_INTERFACE_INFO:
-		ret = fsctl_query_iface_info_ioctl(conn, rsp, out_buf_len);
-		if (ret < 0)
-			goto out;
-		nbytes = ret;
-		break;
-	case FSCTL_REQUEST_RESUME_KEY:
-		if (out_buf_len < sizeof(struct resume_key_ioctl_rsp)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		ret = fsctl_request_resume_key(work, req,
-					       (struct resume_key_ioctl_rsp *)&rsp->Buffer[0]);
-		if (ret < 0)
-			goto out;
-		rsp->PersistentFileId = req->PersistentFileId;
-		rsp->VolatileFileId = req->VolatileFileId;
-		nbytes = sizeof(struct resume_key_ioctl_rsp);
-		break;
-	case FSCTL_COPYCHUNK:
-	case FSCTL_COPYCHUNK_WRITE:
-		if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-			ksmbd_debug(SMB,
-				    "User does not have write permission\n");
-			ret = -EACCES;
-			goto out;
-		}
-
-		if (in_buf_len < sizeof(struct copychunk_ioctl_req)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		if (out_buf_len < sizeof(struct copychunk_ioctl_rsp)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		nbytes = sizeof(struct copychunk_ioctl_rsp);
-		rsp->VolatileFileId = req->VolatileFileId;
-		rsp->PersistentFileId = req->PersistentFileId;
-		fsctl_copychunk(work,
-				(struct copychunk_ioctl_req *)&req->Buffer[0],
-				le32_to_cpu(req->CtlCode),
-				le32_to_cpu(req->InputCount),
-				req->VolatileFileId,
-				req->PersistentFileId,
-				rsp);
-		break;
-	case FSCTL_SET_SPARSE:
-		if (in_buf_len < sizeof(struct file_sparse)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		ret = fsctl_set_sparse(work, id,
-				       (struct file_sparse *)&req->Buffer[0]);
-		if (ret < 0)
-			goto out;
-		break;
-	case FSCTL_SET_ZERO_DATA:
-	{
-		struct file_zero_data_information *zero_data;
-		struct ksmbd_file *fp;
-		loff_t off, len, bfz;
-
-		if (!test_tree_conn_flag(work->tcon, KSMBD_TREE_CONN_FLAG_WRITABLE)) {
-			ksmbd_debug(SMB,
-				    "User does not have write permission\n");
-			ret = -EACCES;
-			goto out;
-		}
-
-		if (in_buf_len < sizeof(struct file_zero_data_information)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		zero_data =
-			(struct file_zero_data_information *)&req->Buffer[0];
-
-		off = le64_to_cpu(zero_data->FileOffset);
-		bfz = le64_to_cpu(zero_data->BeyondFinalZero);
-		if (off < 0 || bfz < 0 || off > bfz) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		len = bfz - off;
-		if (len) {
-			fp = ksmbd_lookup_fd_fast(work, id);
-			if (!fp) {
-				ret = -ENOENT;
-				goto out;
-			}
-
-			ret = ksmbd_vfs_zero_data(work, fp, off, len);
-			ksmbd_fd_put(work, fp);
-			if (ret < 0)
-				goto out;
-		}
-		break;
-	}
-	case FSCTL_QUERY_ALLOCATED_RANGES:
-		if (in_buf_len < sizeof(struct file_allocated_range_buffer)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		ret = fsctl_query_allocated_ranges(work, id,
-			(struct file_allocated_range_buffer *)&req->Buffer[0],
-			(struct file_allocated_range_buffer *)&rsp->Buffer[0],
-			out_buf_len /
-			sizeof(struct file_allocated_range_buffer), &nbytes);
-		if (ret == -E2BIG) {
-			rsp->hdr.Status = STATUS_BUFFER_OVERFLOW;
-		} else if (ret < 0) {
-			nbytes = 0;
-			goto out;
-		}
-
-		nbytes *= sizeof(struct file_allocated_range_buffer);
-		break;
-	case FSCTL_GET_REPARSE_POINT:
-	{
-		struct reparse_data_buffer *reparse_ptr;
-		struct ksmbd_file *fp;
-
-		reparse_ptr = (struct reparse_data_buffer *)&rsp->Buffer[0];
-		fp = ksmbd_lookup_fd_fast(work, id);
-		if (!fp) {
-			pr_err("not found fp!!\n");
-			ret = -ENOENT;
-			goto out;
-		}
-
-		reparse_ptr->ReparseTag =
-			smb2_get_reparse_tag_special_file(file_inode(fp->filp)->i_mode);
-		reparse_ptr->ReparseDataLength = 0;
-		ksmbd_fd_put(work, fp);
-		nbytes = sizeof(struct reparse_data_buffer);
-		break;
-	}
-	case FSCTL_DUPLICATE_EXTENTS_TO_FILE:
-	{
-		struct ksmbd_file *fp_in, *fp_out = NULL;
-		struct duplicate_extents_to_file *dup_ext;
-		loff_t src_off, dst_off, length, cloned;
-
-		if (in_buf_len < sizeof(struct duplicate_extents_to_file)) {
-			ret = -EINVAL;
-			goto out;
-		}
-
-		dup_ext = (struct duplicate_extents_to_file *)&req->Buffer[0];
-
-		fp_in = ksmbd_lookup_fd_slow(work, dup_ext->VolatileFileHandle,
-					     dup_ext->PersistentFileHandle);
-		if (!fp_in) {
-			pr_err("not found file handle in duplicate extent to file\n");
-			ret = -ENOENT;
-			goto out;
-		}
-
-		fp_out = ksmbd_lookup_fd_fast(work, id);
-		if (!fp_out) {
-			pr_err("not found fp\n");
-			ret = -ENOENT;
-			goto dup_ext_out;
-		}
-
-		src_off = le64_to_cpu(dup_ext->SourceFileOffset);
-		dst_off = le64_to_cpu(dup_ext->TargetFileOffset);
-		length = le64_to_cpu(dup_ext->ByteCount);
-		/*
-		 * XXX: It is not clear if FSCTL_DUPLICATE_EXTENTS_TO_FILE
-		 * should fall back to vfs_copy_file_range().  This could be
-		 * beneficial when re-exporting nfs/smb mount, but note that
-		 * this can result in partial copy that returns an error status.
-		 * If/when FSCTL_DUPLICATE_EXTENTS_TO_FILE_EX is implemented,
-		 * fall back to vfs_copy_file_range(), should be avoided when
-		 * the flag DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC is set.
-		 */
-		cloned = vfs_clone_file_range(fp_in->filp, src_off,
-					      fp_out->filp, dst_off, length, 0);
-		if (cloned == -EXDEV || cloned == -EOPNOTSUPP) {
-			ret = -EOPNOTSUPP;
-			goto dup_ext_out;
-		} else if (cloned != length) {
-			cloned = vfs_copy_file_range(fp_in->filp, src_off,
-						     fp_out->filp, dst_off,
-						     length, 0);
-			if (cloned != length) {
-				if (cloned < 0)
-					ret = cloned;
-				else
-					ret = -EINVAL;
-			}
-		}
-
-dup_ext_out:
-		ksmbd_fd_put(work, fp_in);
-		ksmbd_fd_put(work, fp_out);
-		if (ret < 0)
-			goto out;
-		break;
-	}
-	default:
-		ksmbd_debug(SMB, "not implemented yet ioctl command 0x%x\n",
-			    cnt_code);
-		ret = -EOPNOTSUPP;
-		goto out;
-	}
-
-	rsp->CtlCode = cpu_to_le32(cnt_code);
-	rsp->InputCount = cpu_to_le32(0);
-	rsp->InputOffset = cpu_to_le32(112);
-	rsp->OutputOffset = cpu_to_le32(112);
-	rsp->OutputCount = cpu_to_le32(nbytes);
-	rsp->StructureSize = cpu_to_le16(49);
-	rsp->Reserved = cpu_to_le16(0);
-	rsp->Flags = cpu_to_le32(0);
-	rsp->Reserved2 = cpu_to_le32(0);
-	inc_rfc1001_len(work->response_buf, 48 + nbytes);
-
-	return 0;
-
-out:
-	if (ret == -EACCES)
-		rsp->hdr.Status = STATUS_ACCESS_DENIED;
-	else if (ret == -ENOENT)
-		rsp->hdr.Status = STATUS_OBJECT_NAME_NOT_FOUND;
-	else if (ret == -EOPNOTSUPP)
-		rsp->hdr.Status = STATUS_NOT_SUPPORTED;
-	else if (ret == -ENOSPC)
-		rsp->hdr.Status = STATUS_BUFFER_TOO_SMALL;
-	else if (ret < 0 || rsp->hdr.Status == 0)
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-	smb2_set_err_rsp(work);
-	return 0;
-}
-
-/**
- * smb20_oplock_break_ack() - handler for smb2.0 oplock break command
- * @work:	smb work containing oplock break command buffer
- *
- * Return:	0
- */
-static void smb20_oplock_break_ack(struct ksmbd_work *work)
-{
-	struct smb2_oplock_break *req = smb2_get_msg(work->request_buf);
-	struct smb2_oplock_break *rsp = smb2_get_msg(work->response_buf);
-	struct ksmbd_file *fp;
-	struct oplock_info *opinfo = NULL;
-	__le32 err = 0;
-	int ret = 0;
-	u64 volatile_id, persistent_id;
-	char req_oplevel = 0, rsp_oplevel = 0;
-	unsigned int oplock_change_type;
-
-	volatile_id = req->VolatileFid;
-	persistent_id = req->PersistentFid;
-	req_oplevel = req->OplockLevel;
-	ksmbd_debug(OPLOCK, "v_id %llu, p_id %llu request oplock level %d\n",
-		    volatile_id, persistent_id, req_oplevel);
-
-	fp = ksmbd_lookup_fd_slow(work, volatile_id, persistent_id);
-	if (!fp) {
-		rsp->hdr.Status = STATUS_FILE_CLOSED;
-		smb2_set_err_rsp(work);
-		return;
-	}
-
-	opinfo = opinfo_get(fp);
-	if (!opinfo) {
-		pr_err("unexpected null oplock_info\n");
-		rsp->hdr.Status = STATUS_INVALID_OPLOCK_PROTOCOL;
-		smb2_set_err_rsp(work);
-		ksmbd_fd_put(work, fp);
-		return;
-	}
-
-	if (opinfo->level == SMB2_OPLOCK_LEVEL_NONE) {
-		rsp->hdr.Status = STATUS_INVALID_OPLOCK_PROTOCOL;
-		goto err_out;
-	}
-
-	if (opinfo->op_state == OPLOCK_STATE_NONE) {
-		ksmbd_debug(SMB, "unexpected oplock state 0x%x\n", opinfo->op_state);
-		rsp->hdr.Status = STATUS_UNSUCCESSFUL;
-		goto err_out;
-	}
-
-	if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE ||
-	     opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) &&
-	    (req_oplevel != SMB2_OPLOCK_LEVEL_II &&
-	     req_oplevel != SMB2_OPLOCK_LEVEL_NONE)) {
-		err = STATUS_INVALID_OPLOCK_PROTOCOL;
-		oplock_change_type = OPLOCK_WRITE_TO_NONE;
-	} else if (opinfo->level == SMB2_OPLOCK_LEVEL_II &&
-		   req_oplevel != SMB2_OPLOCK_LEVEL_NONE) {
-		err = STATUS_INVALID_OPLOCK_PROTOCOL;
-		oplock_change_type = OPLOCK_READ_TO_NONE;
-	} else if (req_oplevel == SMB2_OPLOCK_LEVEL_II ||
-		   req_oplevel == SMB2_OPLOCK_LEVEL_NONE) {
-		err = STATUS_INVALID_DEVICE_STATE;
-		if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE ||
-		     opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) &&
-		    req_oplevel == SMB2_OPLOCK_LEVEL_II) {
-			oplock_change_type = OPLOCK_WRITE_TO_READ;
-		} else if ((opinfo->level == SMB2_OPLOCK_LEVEL_EXCLUSIVE ||
-			    opinfo->level == SMB2_OPLOCK_LEVEL_BATCH) &&
-			   req_oplevel == SMB2_OPLOCK_LEVEL_NONE) {
-			oplock_change_type = OPLOCK_WRITE_TO_NONE;
-		} else if (opinfo->level == SMB2_OPLOCK_LEVEL_II &&
-			   req_oplevel == SMB2_OPLOCK_LEVEL_NONE) {
-			oplock_change_type = OPLOCK_READ_TO_NONE;
-		} else {
-			oplock_change_type = 0;
-		}
-	} else {
-		oplock_change_type = 0;
-	}
-
-	switch (oplock_change_type) {
-	case OPLOCK_WRITE_TO_READ:
-		ret = opinfo_write_to_read(opinfo);
-		rsp_oplevel = SMB2_OPLOCK_LEVEL_II;
-		break;
-	case OPLOCK_WRITE_TO_NONE:
-		ret = opinfo_write_to_none(opinfo);
-		rsp_oplevel = SMB2_OPLOCK_LEVEL_NONE;
-		break;
-	case OPLOCK_READ_TO_NONE:
-		ret = opinfo_read_to_none(opinfo);
-		rsp_oplevel = SMB2_OPLOCK_LEVEL_NONE;
-		break;
-	default:
-		pr_err("unknown oplock change 0x%x -> 0x%x\n",
-		       opinfo->level, rsp_oplevel);
-	}
-
-	if (ret < 0) {
-		rsp->hdr.Status = err;
-		goto err_out;
-	}
-
-	opinfo_put(opinfo);
-	ksmbd_fd_put(work, fp);
-	opinfo->op_state = OPLOCK_STATE_NONE;
-	wake_up_interruptible_all(&opinfo->oplock_q);
-
-	rsp->StructureSize = cpu_to_le16(24);
-	rsp->OplockLevel = rsp_oplevel;
-	rsp->Reserved = 0;
-	rsp->Reserved2 = 0;
-	rsp->VolatileFid = volatile_id;
-	rsp->PersistentFid = persistent_id;
-	inc_rfc1001_len(work->response_buf, 24);
-	return;
-
-err_out:
-	opinfo->op_state = OPLOCK_STATE_NONE;
-	wake_up_interruptible_all(&opinfo->oplock_q);
-
-	opinfo_put(opinfo);
-	ksmbd_fd_put(work, fp);
-	smb2_set_err_rsp(work);
-}
-
-static int check_lease_state(struct lease *lease, __le32 req_state)
-{
-	if ((lease->new_state ==
-	     (SMB2_LEASE_READ_CACHING_LE | SMB2_LEASE_HANDLE_CACHING_LE)) &&
-	    !(req_state & SMB2_LEASE_WRITE_CACHING_LE)) {
-		lease->new_state = req_state;
-		return 0;
-	}
-
-	if (lease->new_state == req_state)
-		return 0;
-
-	return 1;
-}
-
-/**
- * smb21_lease_break_ack() - handler for smb2.1 lease break command
- * @work:	smb work containing lease break command buffer
- *
- * Return:	0
- */
-static void smb21_lease_break_ack(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_lease_ack *req = smb2_get_msg(work->request_buf);
-	struct smb2_lease_ack *rsp = smb2_get_msg(work->response_buf);
-	struct oplock_info *opinfo;
-	__le32 err = 0;
-	int ret = 0;
-	unsigned int lease_change_type;
-	__le32 lease_state;
-	struct lease *lease;
-
-	ksmbd_debug(OPLOCK, "smb21 lease break, lease state(0x%x)\n",
-		    le32_to_cpu(req->LeaseState));
-	opinfo = lookup_lease_in_table(conn, req->LeaseKey);
-	if (!opinfo) {
-		ksmbd_debug(OPLOCK, "file not opened\n");
-		smb2_set_err_rsp(work);
-		rsp->hdr.Status = STATUS_UNSUCCESSFUL;
-		return;
-	}
-	lease = opinfo->o_lease;
-
-	if (opinfo->op_state == OPLOCK_STATE_NONE) {
-		pr_err("unexpected lease break state 0x%x\n",
-		       opinfo->op_state);
-		rsp->hdr.Status = STATUS_UNSUCCESSFUL;
-		goto err_out;
-	}
-
-	if (check_lease_state(lease, req->LeaseState)) {
-		rsp->hdr.Status = STATUS_REQUEST_NOT_ACCEPTED;
-		ksmbd_debug(OPLOCK,
-			    "req lease state: 0x%x, expected state: 0x%x\n",
-			    req->LeaseState, lease->new_state);
-		goto err_out;
-	}
-
-	if (!atomic_read(&opinfo->breaking_cnt)) {
-		rsp->hdr.Status = STATUS_UNSUCCESSFUL;
-		goto err_out;
-	}
-
-	/* check for bad lease state */
-	if (req->LeaseState &
-	    (~(SMB2_LEASE_READ_CACHING_LE | SMB2_LEASE_HANDLE_CACHING_LE))) {
-		err = STATUS_INVALID_OPLOCK_PROTOCOL;
-		if (lease->state & SMB2_LEASE_WRITE_CACHING_LE)
-			lease_change_type = OPLOCK_WRITE_TO_NONE;
-		else
-			lease_change_type = OPLOCK_READ_TO_NONE;
-		ksmbd_debug(OPLOCK, "handle bad lease state 0x%x -> 0x%x\n",
-			    le32_to_cpu(lease->state),
-			    le32_to_cpu(req->LeaseState));
-	} else if (lease->state == SMB2_LEASE_READ_CACHING_LE &&
-		   req->LeaseState != SMB2_LEASE_NONE_LE) {
-		err = STATUS_INVALID_OPLOCK_PROTOCOL;
-		lease_change_type = OPLOCK_READ_TO_NONE;
-		ksmbd_debug(OPLOCK, "handle bad lease state 0x%x -> 0x%x\n",
-			    le32_to_cpu(lease->state),
-			    le32_to_cpu(req->LeaseState));
-	} else {
-		/* valid lease state changes */
-		err = STATUS_INVALID_DEVICE_STATE;
-		if (req->LeaseState == SMB2_LEASE_NONE_LE) {
-			if (lease->state & SMB2_LEASE_WRITE_CACHING_LE)
-				lease_change_type = OPLOCK_WRITE_TO_NONE;
-			else
-				lease_change_type = OPLOCK_READ_TO_NONE;
-		} else if (req->LeaseState & SMB2_LEASE_READ_CACHING_LE) {
-			if (lease->state & SMB2_LEASE_WRITE_CACHING_LE)
-				lease_change_type = OPLOCK_WRITE_TO_READ;
-			else
-				lease_change_type = OPLOCK_READ_HANDLE_TO_READ;
-		} else {
-			lease_change_type = 0;
-		}
-	}
-
-	switch (lease_change_type) {
-	case OPLOCK_WRITE_TO_READ:
-		ret = opinfo_write_to_read(opinfo);
-		break;
-	case OPLOCK_READ_HANDLE_TO_READ:
-		ret = opinfo_read_handle_to_read(opinfo);
-		break;
-	case OPLOCK_WRITE_TO_NONE:
-		ret = opinfo_write_to_none(opinfo);
-		break;
-	case OPLOCK_READ_TO_NONE:
-		ret = opinfo_read_to_none(opinfo);
-		break;
-	default:
-		ksmbd_debug(OPLOCK, "unknown lease change 0x%x -> 0x%x\n",
-			    le32_to_cpu(lease->state),
-			    le32_to_cpu(req->LeaseState));
-	}
-
-	lease_state = lease->state;
-	opinfo->op_state = OPLOCK_STATE_NONE;
-	wake_up_interruptible_all(&opinfo->oplock_q);
-	atomic_dec(&opinfo->breaking_cnt);
-	wake_up_interruptible_all(&opinfo->oplock_brk);
-	opinfo_put(opinfo);
-
-	if (ret < 0) {
-		rsp->hdr.Status = err;
-		goto err_out;
-	}
-
-	rsp->StructureSize = cpu_to_le16(36);
-	rsp->Reserved = 0;
-	rsp->Flags = 0;
-	memcpy(rsp->LeaseKey, req->LeaseKey, 16);
-	rsp->LeaseState = lease_state;
-	rsp->LeaseDuration = 0;
-	inc_rfc1001_len(work->response_buf, 36);
-	return;
-
-err_out:
-	opinfo->op_state = OPLOCK_STATE_NONE;
-	wake_up_interruptible_all(&opinfo->oplock_q);
-	atomic_dec(&opinfo->breaking_cnt);
-	wake_up_interruptible_all(&opinfo->oplock_brk);
-
-	opinfo_put(opinfo);
-	smb2_set_err_rsp(work);
-}
-
-/**
- * smb2_oplock_break() - dispatcher for smb2.0 and 2.1 oplock/lease break
- * @work:	smb work containing oplock/lease break command buffer
- *
- * Return:	0
- */
-int smb2_oplock_break(struct ksmbd_work *work)
-{
-	struct smb2_oplock_break *req = smb2_get_msg(work->request_buf);
-	struct smb2_oplock_break *rsp = smb2_get_msg(work->response_buf);
-
-	switch (le16_to_cpu(req->StructureSize)) {
-	case OP_BREAK_STRUCT_SIZE_20:
-		smb20_oplock_break_ack(work);
-		break;
-	case OP_BREAK_STRUCT_SIZE_21:
-		smb21_lease_break_ack(work);
-		break;
-	default:
-		ksmbd_debug(OPLOCK, "invalid break cmd %d\n",
-			    le16_to_cpu(req->StructureSize));
-		rsp->hdr.Status = STATUS_INVALID_PARAMETER;
-		smb2_set_err_rsp(work);
-	}
-
-	return 0;
-}
-
-/**
- * smb2_notify() - handler for smb2 notify request
- * @work:   smb work containing notify command buffer
- *
- * Return:      0
- */
-int smb2_notify(struct ksmbd_work *work)
-{
-	struct smb2_change_notify_req *req;
-	struct smb2_change_notify_rsp *rsp;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	if (work->next_smb2_rcv_hdr_off && req->hdr.NextCommand) {
-		rsp->hdr.Status = STATUS_INTERNAL_ERROR;
-		smb2_set_err_rsp(work);
-		return 0;
-	}
-
-	smb2_set_err_rsp(work);
-	rsp->hdr.Status = STATUS_NOT_IMPLEMENTED;
-	return 0;
-}
-
-/**
- * smb2_is_sign_req() - handler for checking packet signing status
- * @work:	smb work containing notify command buffer
- * @command:	SMB2 command id
- *
- * Return:	true if packed is signed, false otherwise
- */
-bool smb2_is_sign_req(struct ksmbd_work *work, unsigned int command)
-{
-	struct smb2_hdr *rcv_hdr2 = smb2_get_msg(work->request_buf);
-
-	if ((rcv_hdr2->Flags & SMB2_FLAGS_SIGNED) &&
-	    command != SMB2_NEGOTIATE_HE &&
-	    command != SMB2_SESSION_SETUP_HE &&
-	    command != SMB2_OPLOCK_BREAK_HE)
-		return true;
-
-	return false;
-}
-
-/**
- * smb2_check_sign_req() - handler for req packet sign processing
- * @work:   smb work containing notify command buffer
- *
- * Return:	1 on success, 0 otherwise
- */
-int smb2_check_sign_req(struct ksmbd_work *work)
-{
-	struct smb2_hdr *hdr;
-	char signature_req[SMB2_SIGNATURE_SIZE];
-	char signature[SMB2_HMACSHA256_SIZE];
-	struct kvec iov[1];
-	size_t len;
-
-	hdr = smb2_get_msg(work->request_buf);
-	if (work->next_smb2_rcv_hdr_off)
-		hdr = ksmbd_req_buf_next(work);
-
-	if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off)
-		len = get_rfc1002_len(work->request_buf);
-	else if (hdr->NextCommand)
-		len = le32_to_cpu(hdr->NextCommand);
-	else
-		len = get_rfc1002_len(work->request_buf) -
-			work->next_smb2_rcv_hdr_off;
-
-	memcpy(signature_req, hdr->Signature, SMB2_SIGNATURE_SIZE);
-	memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE);
-
-	iov[0].iov_base = (char *)&hdr->ProtocolId;
-	iov[0].iov_len = len;
-
-	if (ksmbd_sign_smb2_pdu(work->conn, work->sess->sess_key, iov, 1,
-				signature))
-		return 0;
-
-	if (memcmp(signature, signature_req, SMB2_SIGNATURE_SIZE)) {
-		pr_err("bad smb2 signature\n");
-		return 0;
-	}
-
-	return 1;
-}
-
-/**
- * smb2_set_sign_rsp() - handler for rsp packet sign processing
- * @work:   smb work containing notify command buffer
- *
- */
-void smb2_set_sign_rsp(struct ksmbd_work *work)
-{
-	struct smb2_hdr *hdr;
-	struct smb2_hdr *req_hdr;
-	char signature[SMB2_HMACSHA256_SIZE];
-	struct kvec iov[2];
-	size_t len;
-	int n_vec = 1;
-
-	hdr = smb2_get_msg(work->response_buf);
-	if (work->next_smb2_rsp_hdr_off)
-		hdr = ksmbd_resp_buf_next(work);
-
-	req_hdr = ksmbd_req_buf_next(work);
-
-	if (!work->next_smb2_rsp_hdr_off) {
-		len = get_rfc1002_len(work->response_buf);
-		if (req_hdr->NextCommand)
-			len = ALIGN(len, 8);
-	} else {
-		len = get_rfc1002_len(work->response_buf) -
-			work->next_smb2_rsp_hdr_off;
-		len = ALIGN(len, 8);
-	}
-
-	if (req_hdr->NextCommand)
-		hdr->NextCommand = cpu_to_le32(len);
-
-	hdr->Flags |= SMB2_FLAGS_SIGNED;
-	memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE);
-
-	iov[0].iov_base = (char *)&hdr->ProtocolId;
-	iov[0].iov_len = len;
-
-	if (work->aux_payload_sz) {
-		iov[0].iov_len -= work->aux_payload_sz;
-
-		iov[1].iov_base = work->aux_payload_buf;
-		iov[1].iov_len = work->aux_payload_sz;
-		n_vec++;
-	}
-
-	if (!ksmbd_sign_smb2_pdu(work->conn, work->sess->sess_key, iov, n_vec,
-				 signature))
-		memcpy(hdr->Signature, signature, SMB2_SIGNATURE_SIZE);
-}
-
-/**
- * smb3_check_sign_req() - handler for req packet sign processing
- * @work:   smb work containing notify command buffer
- *
- * Return:	1 on success, 0 otherwise
- */
-int smb3_check_sign_req(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	char *signing_key;
-	struct smb2_hdr *hdr;
-	struct channel *chann;
-	char signature_req[SMB2_SIGNATURE_SIZE];
-	char signature[SMB2_CMACAES_SIZE];
-	struct kvec iov[1];
-	size_t len;
-
-	hdr = smb2_get_msg(work->request_buf);
-	if (work->next_smb2_rcv_hdr_off)
-		hdr = ksmbd_req_buf_next(work);
-
-	if (!hdr->NextCommand && !work->next_smb2_rcv_hdr_off)
-		len = get_rfc1002_len(work->request_buf);
-	else if (hdr->NextCommand)
-		len = le32_to_cpu(hdr->NextCommand);
-	else
-		len = get_rfc1002_len(work->request_buf) -
-			work->next_smb2_rcv_hdr_off;
-
-	if (le16_to_cpu(hdr->Command) == SMB2_SESSION_SETUP_HE) {
-		signing_key = work->sess->smb3signingkey;
-	} else {
-		chann = lookup_chann_list(work->sess, conn);
-		if (!chann) {
-			return 0;
-		}
-		signing_key = chann->smb3signingkey;
-	}
-
-	if (!signing_key) {
-		pr_err("SMB3 signing key is not generated\n");
-		return 0;
-	}
-
-	memcpy(signature_req, hdr->Signature, SMB2_SIGNATURE_SIZE);
-	memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE);
-	iov[0].iov_base = (char *)&hdr->ProtocolId;
-	iov[0].iov_len = len;
-
-	if (ksmbd_sign_smb3_pdu(conn, signing_key, iov, 1, signature))
-		return 0;
-
-	if (memcmp(signature, signature_req, SMB2_SIGNATURE_SIZE)) {
-		pr_err("bad smb2 signature\n");
-		return 0;
-	}
-
-	return 1;
-}
-
-/**
- * smb3_set_sign_rsp() - handler for rsp packet sign processing
- * @work:   smb work containing notify command buffer
- *
- */
-void smb3_set_sign_rsp(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct smb2_hdr *req_hdr, *hdr;
-	struct channel *chann;
-	char signature[SMB2_CMACAES_SIZE];
-	struct kvec iov[2];
-	int n_vec = 1;
-	size_t len;
-	char *signing_key;
-
-	hdr = smb2_get_msg(work->response_buf);
-	if (work->next_smb2_rsp_hdr_off)
-		hdr = ksmbd_resp_buf_next(work);
-
-	req_hdr = ksmbd_req_buf_next(work);
-
-	if (!work->next_smb2_rsp_hdr_off) {
-		len = get_rfc1002_len(work->response_buf);
-		if (req_hdr->NextCommand)
-			len = ALIGN(len, 8);
-	} else {
-		len = get_rfc1002_len(work->response_buf) -
-			work->next_smb2_rsp_hdr_off;
-		len = ALIGN(len, 8);
-	}
-
-	if (conn->binding == false &&
-	    le16_to_cpu(hdr->Command) == SMB2_SESSION_SETUP_HE) {
-		signing_key = work->sess->smb3signingkey;
-	} else {
-		chann = lookup_chann_list(work->sess, work->conn);
-		if (!chann) {
-			return;
-		}
-		signing_key = chann->smb3signingkey;
-	}
-
-	if (!signing_key)
-		return;
-
-	if (req_hdr->NextCommand)
-		hdr->NextCommand = cpu_to_le32(len);
-
-	hdr->Flags |= SMB2_FLAGS_SIGNED;
-	memset(hdr->Signature, 0, SMB2_SIGNATURE_SIZE);
-	iov[0].iov_base = (char *)&hdr->ProtocolId;
-	iov[0].iov_len = len;
-	if (work->aux_payload_sz) {
-		iov[0].iov_len -= work->aux_payload_sz;
-		iov[1].iov_base = work->aux_payload_buf;
-		iov[1].iov_len = work->aux_payload_sz;
-		n_vec++;
-	}
-
-	if (!ksmbd_sign_smb3_pdu(conn, signing_key, iov, n_vec, signature))
-		memcpy(hdr->Signature, signature, SMB2_SIGNATURE_SIZE);
-}
-
-/**
- * smb3_preauth_hash_rsp() - handler for computing preauth hash on response
- * @work:   smb work containing response buffer
- *
- */
-void smb3_preauth_hash_rsp(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_session *sess = work->sess;
-	struct smb2_hdr *req, *rsp;
-
-	if (conn->dialect != SMB311_PROT_ID)
-		return;
-
-	WORK_BUFFERS(work, req, rsp);
-
-	if (le16_to_cpu(req->Command) == SMB2_NEGOTIATE_HE &&
-	    conn->preauth_info)
-		ksmbd_gen_preauth_integrity_hash(conn, work->response_buf,
-						 conn->preauth_info->Preauth_HashValue);
-
-	if (le16_to_cpu(rsp->Command) == SMB2_SESSION_SETUP_HE && sess) {
-		__u8 *hash_value;
-
-		if (conn->binding) {
-			struct preauth_session *preauth_sess;
-
-			preauth_sess = ksmbd_preauth_session_lookup(conn, sess->id);
-			if (!preauth_sess)
-				return;
-			hash_value = preauth_sess->Preauth_HashValue;
-		} else {
-			hash_value = sess->Preauth_HashValue;
-			if (!hash_value)
-				return;
-		}
-		ksmbd_gen_preauth_integrity_hash(conn, work->response_buf,
-						 hash_value);
-	}
-}
-
-static void fill_transform_hdr(void *tr_buf, char *old_buf, __le16 cipher_type)
-{
-	struct smb2_transform_hdr *tr_hdr = tr_buf + 4;
-	struct smb2_hdr *hdr = smb2_get_msg(old_buf);
-	unsigned int orig_len = get_rfc1002_len(old_buf);
-
-	/* tr_buf must be cleared by the caller */
-	tr_hdr->ProtocolId = SMB2_TRANSFORM_PROTO_NUM;
-	tr_hdr->OriginalMessageSize = cpu_to_le32(orig_len);
-	tr_hdr->Flags = cpu_to_le16(TRANSFORM_FLAG_ENCRYPTED);
-	if (cipher_type == SMB2_ENCRYPTION_AES128_GCM ||
-	    cipher_type == SMB2_ENCRYPTION_AES256_GCM)
-		get_random_bytes(&tr_hdr->Nonce, SMB3_AES_GCM_NONCE);
-	else
-		get_random_bytes(&tr_hdr->Nonce, SMB3_AES_CCM_NONCE);
-	memcpy(&tr_hdr->SessionId, &hdr->SessionId, 8);
-	inc_rfc1001_len(tr_buf, sizeof(struct smb2_transform_hdr));
-	inc_rfc1001_len(tr_buf, orig_len);
-}
-
-int smb3_encrypt_resp(struct ksmbd_work *work)
-{
-	char *buf = work->response_buf;
-	struct kvec iov[3];
-	int rc = -ENOMEM;
-	int buf_size = 0, rq_nvec = 2 + (work->aux_payload_sz ? 1 : 0);
-
-	if (ARRAY_SIZE(iov) < rq_nvec)
-		return -ENOMEM;
-
-	work->tr_buf = kzalloc(sizeof(struct smb2_transform_hdr) + 4, GFP_KERNEL);
-	if (!work->tr_buf)
-		return rc;
-
-	/* fill transform header */
-	fill_transform_hdr(work->tr_buf, buf, work->conn->cipher_type);
-
-	iov[0].iov_base = work->tr_buf;
-	iov[0].iov_len = sizeof(struct smb2_transform_hdr) + 4;
-	buf_size += iov[0].iov_len - 4;
-
-	iov[1].iov_base = buf + 4;
-	iov[1].iov_len = get_rfc1002_len(buf);
-	if (work->aux_payload_sz) {
-		iov[1].iov_len = work->resp_hdr_sz - 4;
-
-		iov[2].iov_base = work->aux_payload_buf;
-		iov[2].iov_len = work->aux_payload_sz;
-		buf_size += iov[2].iov_len;
-	}
-	buf_size += iov[1].iov_len;
-	work->resp_hdr_sz = iov[1].iov_len;
-
-	rc = ksmbd_crypt_message(work, iov, rq_nvec, 1);
-	if (rc)
-		return rc;
-
-	memmove(buf, iov[1].iov_base, iov[1].iov_len);
-	*(__be32 *)work->tr_buf = cpu_to_be32(buf_size);
-
-	return rc;
-}
-
-bool smb3_is_transform_hdr(void *buf)
-{
-	struct smb2_transform_hdr *trhdr = smb2_get_msg(buf);
-
-	return trhdr->ProtocolId == SMB2_TRANSFORM_PROTO_NUM;
-}
-
-int smb3_decrypt_req(struct ksmbd_work *work)
-{
-	struct ksmbd_session *sess;
-	char *buf = work->request_buf;
-	unsigned int pdu_length = get_rfc1002_len(buf);
-	struct kvec iov[2];
-	int buf_data_size = pdu_length - sizeof(struct smb2_transform_hdr);
-	struct smb2_transform_hdr *tr_hdr = smb2_get_msg(buf);
-	int rc = 0;
-
-	if (buf_data_size < sizeof(struct smb2_hdr)) {
-		pr_err("Transform message is too small (%u)\n",
-		       pdu_length);
-		return -ECONNABORTED;
-	}
-
-	if (buf_data_size < le32_to_cpu(tr_hdr->OriginalMessageSize)) {
-		pr_err("Transform message is broken\n");
-		return -ECONNABORTED;
-	}
-
-	sess = ksmbd_session_lookup_all(work->conn, le64_to_cpu(tr_hdr->SessionId));
-	if (!sess) {
-		pr_err("invalid session id(%llx) in transform header\n",
-		       le64_to_cpu(tr_hdr->SessionId));
-		return -ECONNABORTED;
-	}
-
-	iov[0].iov_base = buf;
-	iov[0].iov_len = sizeof(struct smb2_transform_hdr) + 4;
-	iov[1].iov_base = buf + sizeof(struct smb2_transform_hdr) + 4;
-	iov[1].iov_len = buf_data_size;
-	rc = ksmbd_crypt_message(work, iov, 2, 0);
-	if (rc)
-		return rc;
-
-	memmove(buf + 4, iov[1].iov_base, buf_data_size);
-	*(__be32 *)buf = cpu_to_be32(buf_data_size);
-
-	return rc;
-}
-
-bool smb3_11_final_sess_setup_resp(struct ksmbd_work *work)
-{
-	struct ksmbd_conn *conn = work->conn;
-	struct ksmbd_session *sess = work->sess;
-	struct smb2_hdr *rsp = smb2_get_msg(work->response_buf);
-
-	if (conn->dialect < SMB30_PROT_ID)
-		return false;
-
-	if (work->next_smb2_rcv_hdr_off)
-		rsp = ksmbd_resp_buf_next(work);
-
-	if (le16_to_cpu(rsp->Command) == SMB2_SESSION_SETUP_HE &&
-	    sess->user && !user_guest(sess->user) &&
-	    rsp->Status == STATUS_SUCCESS)
-		return true;
-	return false;
-}