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, 844 deletions

diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
deleted file mode 100644
index 163a03298430..000000000000
--- a/fs/cifs/smb2inode.c
+++ /dev/null
@@ -1,844 +0,0 @@
-// SPDX-License-Identifier: LGPL-2.1
-/*
- *
- *   Copyright (C) International Business Machines  Corp., 2002, 2011
- *                 Etersoft, 2012
- *   Author(s): Pavel Shilovsky (pshilovsky@samba.org),
- *              Steve French (sfrench@us.ibm.com)
- *
- */
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/slab.h>
-#include <linux/pagemap.h>
-#include <asm/div64.h>
-#include "cifsfs.h"
-#include "cifspdu.h"
-#include "cifsglob.h"
-#include "cifsproto.h"
-#include "cifs_debug.h"
-#include "cifs_fs_sb.h"
-#include "cifs_unicode.h"
-#include "fscache.h"
-#include "smb2glob.h"
-#include "smb2pdu.h"
-#include "smb2proto.h"
-#include "cached_dir.h"
-#include "smb2status.h"
-
-static void
-free_set_inf_compound(struct smb_rqst *rqst)
-{
-	if (rqst[1].rq_iov)
-		SMB2_set_info_free(&rqst[1]);
-	if (rqst[2].rq_iov)
-		SMB2_close_free(&rqst[2]);
-}
-
-
-struct cop_vars {
-	struct cifs_open_parms oparms;
-	struct kvec rsp_iov[3];
-	struct smb_rqst rqst[3];
-	struct kvec open_iov[SMB2_CREATE_IOV_SIZE];
-	struct kvec qi_iov[1];
-	struct kvec si_iov[SMB2_SET_INFO_IOV_SIZE];
-	struct kvec close_iov[1];
-	struct smb2_file_rename_info rename_info;
-	struct smb2_file_link_info link_info;
-};
-
-/*
- * note: If cfile is passed, the reference to it is dropped here.
- * So make sure that you do not reuse cfile after return from this func.
- *
- * If passing @err_iov and @err_buftype, ensure to make them both large enough (>= 3) to hold all
- * error responses.  Caller is also responsible for freeing them up.
- */
-static int smb2_compound_op(const unsigned int xid, struct cifs_tcon *tcon,
-			    struct cifs_sb_info *cifs_sb, const char *full_path,
-			    __u32 desired_access, __u32 create_disposition, __u32 create_options,
-			    umode_t mode, void *ptr, int command, struct cifsFileInfo *cfile,
-			    __u8 **extbuf, size_t *extbuflen,
-			    struct kvec *err_iov, int *err_buftype)
-{
-	struct cop_vars *vars = NULL;
-	struct kvec *rsp_iov;
-	struct smb_rqst *rqst;
-	int rc;
-	__le16 *utf16_path = NULL;
-	__u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
-	struct cifs_fid fid;
-	struct cifs_ses *ses = tcon->ses;
-	struct TCP_Server_Info *server;
-	int num_rqst = 0;
-	int resp_buftype[3];
-	struct smb2_query_info_rsp *qi_rsp = NULL;
-	struct cifs_open_info_data *idata;
-	int flags = 0;
-	__u8 delete_pending[8] = {1, 0, 0, 0, 0, 0, 0, 0};
-	unsigned int size[2];
-	void *data[2];
-	int len;
-
-	vars = kzalloc(sizeof(*vars), GFP_ATOMIC);
-	if (vars == NULL)
-		return -ENOMEM;
-	rqst = &vars->rqst[0];
-	rsp_iov = &vars->rsp_iov[0];
-
-	server = cifs_pick_channel(ses);
-
-	if (smb3_encryption_required(tcon))
-		flags |= CIFS_TRANSFORM_REQ;
-
-	resp_buftype[0] = resp_buftype[1] = resp_buftype[2] = CIFS_NO_BUFFER;
-
-	/* We already have a handle so we can skip the open */
-	if (cfile)
-		goto after_open;
-
-	/* Open */
-	utf16_path = cifs_convert_path_to_utf16(full_path, cifs_sb);
-	if (!utf16_path) {
-		rc = -ENOMEM;
-		goto finished;
-	}
-
-	vars->oparms = (struct cifs_open_parms) {
-		.tcon = tcon,
-		.path = full_path,
-		.desired_access = desired_access,
-		.disposition = create_disposition,
-		.create_options = cifs_create_options(cifs_sb, create_options),
-		.fid = &fid,
-		.mode = mode,
-		.cifs_sb = cifs_sb,
-	};
-
-	rqst[num_rqst].rq_iov = &vars->open_iov[0];
-	rqst[num_rqst].rq_nvec = SMB2_CREATE_IOV_SIZE;
-	rc = SMB2_open_init(tcon, server,
-			    &rqst[num_rqst], &oplock, &vars->oparms,
-			    utf16_path);
-	kfree(utf16_path);
-	if (rc)
-		goto finished;
-
-	smb2_set_next_command(tcon, &rqst[num_rqst]);
- after_open:
-	num_rqst++;
-	rc = 0;
-
-	/* Operation */
-	switch (command) {
-	case SMB2_OP_QUERY_INFO:
-		rqst[num_rqst].rq_iov = &vars->qi_iov[0];
-		rqst[num_rqst].rq_nvec = 1;
-
-		if (cfile)
-			rc = SMB2_query_info_init(tcon, server,
-				&rqst[num_rqst],
-				cfile->fid.persistent_fid,
-				cfile->fid.volatile_fid,
-				FILE_ALL_INFORMATION,
-				SMB2_O_INFO_FILE, 0,
-				sizeof(struct smb2_file_all_info) +
-					  PATH_MAX * 2, 0, NULL);
-		else {
-			rc = SMB2_query_info_init(tcon, server,
-				&rqst[num_rqst],
-				COMPOUND_FID,
-				COMPOUND_FID,
-				FILE_ALL_INFORMATION,
-				SMB2_O_INFO_FILE, 0,
-				sizeof(struct smb2_file_all_info) +
-					  PATH_MAX * 2, 0, NULL);
-			if (!rc) {
-				smb2_set_next_command(tcon, &rqst[num_rqst]);
-				smb2_set_related(&rqst[num_rqst]);
-			}
-		}
-
-		if (rc)
-			goto finished;
-		num_rqst++;
-		trace_smb3_query_info_compound_enter(xid, ses->Suid, tcon->tid,
-						     full_path);
-		break;
-	case SMB2_OP_POSIX_QUERY_INFO:
-		rqst[num_rqst].rq_iov = &vars->qi_iov[0];
-		rqst[num_rqst].rq_nvec = 1;
-
-		if (cfile)
-			rc = SMB2_query_info_init(tcon, server,
-				&rqst[num_rqst],
-				cfile->fid.persistent_fid,
-				cfile->fid.volatile_fid,
-				SMB_FIND_FILE_POSIX_INFO,
-				SMB2_O_INFO_FILE, 0,
-				/* TBD: fix following to allow for longer SIDs */
-				sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) +
-				(sizeof(struct cifs_sid) * 2), 0, NULL);
-		else {
-			rc = SMB2_query_info_init(tcon, server,
-				&rqst[num_rqst],
-				COMPOUND_FID,
-				COMPOUND_FID,
-				SMB_FIND_FILE_POSIX_INFO,
-				SMB2_O_INFO_FILE, 0,
-				sizeof(struct smb311_posix_qinfo *) + (PATH_MAX * 2) +
-				(sizeof(struct cifs_sid) * 2), 0, NULL);
-			if (!rc) {
-				smb2_set_next_command(tcon, &rqst[num_rqst]);
-				smb2_set_related(&rqst[num_rqst]);
-			}
-		}
-
-		if (rc)
-			goto finished;
-		num_rqst++;
-		trace_smb3_posix_query_info_compound_enter(xid, ses->Suid, tcon->tid, full_path);
-		break;
-	case SMB2_OP_DELETE:
-		trace_smb3_delete_enter(xid, ses->Suid, tcon->tid, full_path);
-		break;
-	case SMB2_OP_MKDIR:
-		/*
-		 * Directories are created through parameters in the
-		 * SMB2_open() call.
-		 */
-		trace_smb3_mkdir_enter(xid, ses->Suid, tcon->tid, full_path);
-		break;
-	case SMB2_OP_RMDIR:
-		rqst[num_rqst].rq_iov = &vars->si_iov[0];
-		rqst[num_rqst].rq_nvec = 1;
-
-		size[0] = 1; /* sizeof __u8 See MS-FSCC section 2.4.11 */
-		data[0] = &delete_pending[0];
-
-		rc = SMB2_set_info_init(tcon, server,
-					&rqst[num_rqst], COMPOUND_FID,
-					COMPOUND_FID, current->tgid,
-					FILE_DISPOSITION_INFORMATION,
-					SMB2_O_INFO_FILE, 0, data, size);
-		if (rc)
-			goto finished;
-		smb2_set_next_command(tcon, &rqst[num_rqst]);
-		smb2_set_related(&rqst[num_rqst++]);
-		trace_smb3_rmdir_enter(xid, ses->Suid, tcon->tid, full_path);
-		break;
-	case SMB2_OP_SET_EOF:
-		rqst[num_rqst].rq_iov = &vars->si_iov[0];
-		rqst[num_rqst].rq_nvec = 1;
-
-		size[0] = 8; /* sizeof __le64 */
-		data[0] = ptr;
-
-		if (cfile) {
-			rc = SMB2_set_info_init(tcon, server,
-						&rqst[num_rqst],
-						cfile->fid.persistent_fid,
-						cfile->fid.volatile_fid,
-						current->tgid,
-						FILE_END_OF_FILE_INFORMATION,
-						SMB2_O_INFO_FILE, 0,
-						data, size);
-		} else {
-			rc = SMB2_set_info_init(tcon, server,
-						&rqst[num_rqst],
-						COMPOUND_FID,
-						COMPOUND_FID,
-						current->tgid,
-						FILE_END_OF_FILE_INFORMATION,
-						SMB2_O_INFO_FILE, 0,
-						data, size);
-			if (!rc) {
-				smb2_set_next_command(tcon, &rqst[num_rqst]);
-				smb2_set_related(&rqst[num_rqst]);
-			}
-		}
-		if (rc)
-			goto finished;
-		num_rqst++;
-		trace_smb3_set_eof_enter(xid, ses->Suid, tcon->tid, full_path);
-		break;
-	case SMB2_OP_SET_INFO:
-		rqst[num_rqst].rq_iov = &vars->si_iov[0];
-		rqst[num_rqst].rq_nvec = 1;
-
-
-		size[0] = sizeof(FILE_BASIC_INFO);
-		data[0] = ptr;
-
-		if (cfile)
-			rc = SMB2_set_info_init(tcon, server,
-				&rqst[num_rqst],
-				cfile->fid.persistent_fid,
-				cfile->fid.volatile_fid, current->tgid,
-				FILE_BASIC_INFORMATION,
-				SMB2_O_INFO_FILE, 0, data, size);
-		else {
-			rc = SMB2_set_info_init(tcon, server,
-				&rqst[num_rqst],
-				COMPOUND_FID,
-				COMPOUND_FID, current->tgid,
-				FILE_BASIC_INFORMATION,
-				SMB2_O_INFO_FILE, 0, data, size);
-			if (!rc) {
-				smb2_set_next_command(tcon, &rqst[num_rqst]);
-				smb2_set_related(&rqst[num_rqst]);
-			}
-		}
-
-		if (rc)
-			goto finished;
-		num_rqst++;
-		trace_smb3_set_info_compound_enter(xid, ses->Suid, tcon->tid,
-						   full_path);
-		break;
-	case SMB2_OP_RENAME:
-		rqst[num_rqst].rq_iov = &vars->si_iov[0];
-		rqst[num_rqst].rq_nvec = 2;
-
-		len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
-
-		vars->rename_info.ReplaceIfExists = 1;
-		vars->rename_info.RootDirectory = 0;
-		vars->rename_info.FileNameLength = cpu_to_le32(len);
-
-		size[0] = sizeof(struct smb2_file_rename_info);
-		data[0] = &vars->rename_info;
-
-		size[1] = len + 2 /* null */;
-		data[1] = (__le16 *)ptr;
-
-		if (cfile)
-			rc = SMB2_set_info_init(tcon, server,
-						&rqst[num_rqst],
-						cfile->fid.persistent_fid,
-						cfile->fid.volatile_fid,
-					current->tgid, FILE_RENAME_INFORMATION,
-					SMB2_O_INFO_FILE, 0, data, size);
-		else {
-			rc = SMB2_set_info_init(tcon, server,
-					&rqst[num_rqst],
-					COMPOUND_FID, COMPOUND_FID,
-					current->tgid, FILE_RENAME_INFORMATION,
-					SMB2_O_INFO_FILE, 0, data, size);
-			if (!rc) {
-				smb2_set_next_command(tcon, &rqst[num_rqst]);
-				smb2_set_related(&rqst[num_rqst]);
-			}
-		}
-		if (rc)
-			goto finished;
-		num_rqst++;
-		trace_smb3_rename_enter(xid, ses->Suid, tcon->tid, full_path);
-		break;
-	case SMB2_OP_HARDLINK:
-		rqst[num_rqst].rq_iov = &vars->si_iov[0];
-		rqst[num_rqst].rq_nvec = 2;
-
-		len = (2 * UniStrnlen((wchar_t *)ptr, PATH_MAX));
-
-		vars->link_info.ReplaceIfExists = 0;
-		vars->link_info.RootDirectory = 0;
-		vars->link_info.FileNameLength = cpu_to_le32(len);
-
-		size[0] = sizeof(struct smb2_file_link_info);
-		data[0] = &vars->link_info;
-
-		size[1] = len + 2 /* null */;
-		data[1] = (__le16 *)ptr;
-
-		rc = SMB2_set_info_init(tcon, server,
-					&rqst[num_rqst], COMPOUND_FID,
-					COMPOUND_FID, current->tgid,
-					FILE_LINK_INFORMATION,
-					SMB2_O_INFO_FILE, 0, data, size);
-		if (rc)
-			goto finished;
-		smb2_set_next_command(tcon, &rqst[num_rqst]);
-		smb2_set_related(&rqst[num_rqst++]);
-		trace_smb3_hardlink_enter(xid, ses->Suid, tcon->tid, full_path);
-		break;
-	default:
-		cifs_dbg(VFS, "Invalid command\n");
-		rc = -EINVAL;
-	}
-	if (rc)
-		goto finished;
-
-	/* We already have a handle so we can skip the close */
-	if (cfile)
-		goto after_close;
-	/* Close */
-	flags |= CIFS_CP_CREATE_CLOSE_OP;
-	rqst[num_rqst].rq_iov = &vars->close_iov[0];
-	rqst[num_rqst].rq_nvec = 1;
-	rc = SMB2_close_init(tcon, server,
-			     &rqst[num_rqst], COMPOUND_FID,
-			     COMPOUND_FID, false);
-	smb2_set_related(&rqst[num_rqst]);
-	if (rc)
-		goto finished;
- after_close:
-	num_rqst++;
-
-	if (cfile) {
-		rc = compound_send_recv(xid, ses, server,
-					flags, num_rqst - 2,
-					&rqst[1], &resp_buftype[1],
-					&rsp_iov[1]);
-	} else
-		rc = compound_send_recv(xid, ses, server,
-					flags, num_rqst,
-					rqst, resp_buftype,
-					rsp_iov);
-
- finished:
-	if (cfile)
-		cifsFileInfo_put(cfile);
-
-	SMB2_open_free(&rqst[0]);
-	if (rc == -EREMCHG) {
-		pr_warn_once("server share %s deleted\n", tcon->tree_name);
-		tcon->need_reconnect = true;
-	}
-
-	switch (command) {
-	case SMB2_OP_QUERY_INFO:
-		idata = ptr;
-		if (rc == 0 && cfile && cfile->symlink_target) {
-			idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
-			if (!idata->symlink_target)
-				rc = -ENOMEM;
-		}
-		if (rc == 0) {
-			qi_rsp = (struct smb2_query_info_rsp *)
-				rsp_iov[1].iov_base;
-			rc = smb2_validate_and_copy_iov(
-				le16_to_cpu(qi_rsp->OutputBufferOffset),
-				le32_to_cpu(qi_rsp->OutputBufferLength),
-				&rsp_iov[1], sizeof(idata->fi), (char *)&idata->fi);
-		}
-		if (rqst[1].rq_iov)
-			SMB2_query_info_free(&rqst[1]);
-		if (rqst[2].rq_iov)
-			SMB2_close_free(&rqst[2]);
-		if (rc)
-			trace_smb3_query_info_compound_err(xid,  ses->Suid,
-						tcon->tid, rc);
-		else
-			trace_smb3_query_info_compound_done(xid, ses->Suid,
-						tcon->tid);
-		break;
-	case SMB2_OP_POSIX_QUERY_INFO:
-		idata = ptr;
-		if (rc == 0 && cfile && cfile->symlink_target) {
-			idata->symlink_target = kstrdup(cfile->symlink_target, GFP_KERNEL);
-			if (!idata->symlink_target)
-				rc = -ENOMEM;
-		}
-		if (rc == 0) {
-			qi_rsp = (struct smb2_query_info_rsp *)
-				rsp_iov[1].iov_base;
-			rc = smb2_validate_and_copy_iov(
-				le16_to_cpu(qi_rsp->OutputBufferOffset),
-				le32_to_cpu(qi_rsp->OutputBufferLength),
-				&rsp_iov[1], sizeof(idata->posix_fi) /* add SIDs */,
-				(char *)&idata->posix_fi);
-		}
-		if (rc == 0) {
-			unsigned int length = le32_to_cpu(qi_rsp->OutputBufferLength);
-
-			if (length > sizeof(idata->posix_fi)) {
-				char *base = (char *)rsp_iov[1].iov_base +
-					le16_to_cpu(qi_rsp->OutputBufferOffset) +
-					sizeof(idata->posix_fi);
-				*extbuflen = length - sizeof(idata->posix_fi);
-				*extbuf = kmemdup(base, *extbuflen, GFP_KERNEL);
-				if (!*extbuf)
-					rc = -ENOMEM;
-			} else {
-				rc = -EINVAL;
-			}
-		}
-		if (rqst[1].rq_iov)
-			SMB2_query_info_free(&rqst[1]);
-		if (rqst[2].rq_iov)
-			SMB2_close_free(&rqst[2]);
-		if (rc)
-			trace_smb3_posix_query_info_compound_err(xid,  ses->Suid, tcon->tid, rc);
-		else
-			trace_smb3_posix_query_info_compound_done(xid, ses->Suid, tcon->tid);
-		break;
-	case SMB2_OP_DELETE:
-		if (rc)
-			trace_smb3_delete_err(xid,  ses->Suid, tcon->tid, rc);
-		else
-			trace_smb3_delete_done(xid, ses->Suid, tcon->tid);
-		if (rqst[1].rq_iov)
-			SMB2_close_free(&rqst[1]);
-		break;
-	case SMB2_OP_MKDIR:
-		if (rc)
-			trace_smb3_mkdir_err(xid,  ses->Suid, tcon->tid, rc);
-		else
-			trace_smb3_mkdir_done(xid, ses->Suid, tcon->tid);
-		if (rqst[1].rq_iov)
-			SMB2_close_free(&rqst[1]);
-		break;
-	case SMB2_OP_HARDLINK:
-		if (rc)
-			trace_smb3_hardlink_err(xid,  ses->Suid, tcon->tid, rc);
-		else
-			trace_smb3_hardlink_done(xid, ses->Suid, tcon->tid);
-		free_set_inf_compound(rqst);
-		break;
-	case SMB2_OP_RENAME:
-		if (rc)
-			trace_smb3_rename_err(xid,  ses->Suid, tcon->tid, rc);
-		else
-			trace_smb3_rename_done(xid, ses->Suid, tcon->tid);
-		free_set_inf_compound(rqst);
-		break;
-	case SMB2_OP_RMDIR:
-		if (rc)
-			trace_smb3_rmdir_err(xid,  ses->Suid, tcon->tid, rc);
-		else
-			trace_smb3_rmdir_done(xid, ses->Suid, tcon->tid);
-		free_set_inf_compound(rqst);
-		break;
-	case SMB2_OP_SET_EOF:
-		if (rc)
-			trace_smb3_set_eof_err(xid,  ses->Suid, tcon->tid, rc);
-		else
-			trace_smb3_set_eof_done(xid, ses->Suid, tcon->tid);
-		free_set_inf_compound(rqst);
-		break;
-	case SMB2_OP_SET_INFO:
-		if (rc)
-			trace_smb3_set_info_compound_err(xid,  ses->Suid,
-						tcon->tid, rc);
-		else
-			trace_smb3_set_info_compound_done(xid, ses->Suid,
-						tcon->tid);
-		free_set_inf_compound(rqst);
-		break;
-	}
-
-	if (rc && err_iov && err_buftype) {
-		memcpy(err_iov, rsp_iov, 3 * sizeof(*err_iov));
-		memcpy(err_buftype, resp_buftype, 3 * sizeof(*err_buftype));
-	} else {
-		free_rsp_buf(resp_buftype[0], rsp_iov[0].iov_base);
-		free_rsp_buf(resp_buftype[1], rsp_iov[1].iov_base);
-		free_rsp_buf(resp_buftype[2], rsp_iov[2].iov_base);
-	}
-	kfree(vars);
-	return rc;
-}
-
-int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
-			 struct cifs_sb_info *cifs_sb, const char *full_path,
-			 struct cifs_open_info_data *data, bool *adjust_tz, bool *reparse)
-{
-	__u32 create_options = 0;
-	struct cifsFileInfo *cfile;
-	struct cached_fid *cfid = NULL;
-	struct kvec err_iov[3] = {};
-	int err_buftype[3] = {};
-	bool islink;
-	int rc, rc2;
-
-	*adjust_tz = false;
-	*reparse = false;
-
-	if (strcmp(full_path, ""))
-		rc = -ENOENT;
-	else
-		rc = open_cached_dir(xid, tcon, full_path, cifs_sb, false, &cfid);
-	/* If it is a root and its handle is cached then use it */
-	if (!rc) {
-		if (cfid->file_all_info_is_valid) {
-			memcpy(&data->fi, &cfid->file_all_info, sizeof(data->fi));
-		} else {
-			rc = SMB2_query_info(xid, tcon, cfid->fid.persistent_fid,
-					     cfid->fid.volatile_fid, &data->fi);
-		}
-		close_cached_dir(cfid);
-		return rc;
-	}
-
-	cifs_get_readable_path(tcon, full_path, &cfile);
-	rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN,
-			      create_options, ACL_NO_MODE, data, SMB2_OP_QUERY_INFO, cfile,
-			      NULL, NULL, err_iov, err_buftype);
-	if (rc) {
-		struct smb2_hdr *hdr = err_iov[0].iov_base;
-
-		if (unlikely(!hdr || err_buftype[0] == CIFS_NO_BUFFER))
-			goto out;
-		if (rc == -EOPNOTSUPP && hdr->Command == SMB2_CREATE &&
-		    hdr->Status == STATUS_STOPPED_ON_SYMLINK) {
-			rc = smb2_parse_symlink_response(cifs_sb, err_iov,
-							 &data->symlink_target);
-			if (rc)
-				goto out;
-
-			*reparse = true;
-			create_options |= OPEN_REPARSE_POINT;
-
-			/* Failed on a symbolic link - query a reparse point info */
-			cifs_get_readable_path(tcon, full_path, &cfile);
-			rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
-					      FILE_READ_ATTRIBUTES, FILE_OPEN,
-					      create_options, ACL_NO_MODE, data,
-					      SMB2_OP_QUERY_INFO, cfile, NULL, NULL,
-					      NULL, NULL);
-			goto out;
-		} else if (rc != -EREMOTE && hdr->Status == STATUS_OBJECT_NAME_INVALID) {
-			rc2 = cifs_inval_name_dfs_link_error(xid, tcon, cifs_sb,
-							     full_path, &islink);
-			if (rc2) {
-				rc = rc2;
-				goto out;
-			}
-			if (islink)
-				rc = -EREMOTE;
-		}
-		if (rc == -EREMOTE && IS_ENABLED(CONFIG_CIFS_DFS_UPCALL) && cifs_sb &&
-		    (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS))
-			rc = -EOPNOTSUPP;
-	}
-
-out:
-	free_rsp_buf(err_buftype[0], err_iov[0].iov_base);
-	free_rsp_buf(err_buftype[1], err_iov[1].iov_base);
-	free_rsp_buf(err_buftype[2], err_iov[2].iov_base);
-	return rc;
-}
-
-
-int smb311_posix_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
-				 struct cifs_sb_info *cifs_sb, const char *full_path,
-				 struct cifs_open_info_data *data,
-				 struct cifs_sid *owner,
-				 struct cifs_sid *group,
-				 bool *adjust_tz, bool *reparse)
-{
-	int rc;
-	__u32 create_options = 0;
-	struct cifsFileInfo *cfile;
-	struct kvec err_iov[3] = {};
-	int err_buftype[3] = {};
-	__u8 *sidsbuf = NULL;
-	__u8 *sidsbuf_end = NULL;
-	size_t sidsbuflen = 0;
-	size_t owner_len, group_len;
-
-	*adjust_tz = false;
-	*reparse = false;
-
-	/*
-	 * BB TODO: Add support for using the cached root handle.
-	 * Create SMB2_query_posix_info worker function to do non-compounded query
-	 * when we already have an open file handle for this. For now this is fast enough
-	 * (always using the compounded version).
-	 */
-
-	cifs_get_readable_path(tcon, full_path, &cfile);
-	rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES, FILE_OPEN,
-			      create_options, ACL_NO_MODE, data, SMB2_OP_POSIX_QUERY_INFO, cfile,
-			      &sidsbuf, &sidsbuflen, err_iov, err_buftype);
-	if (rc == -EOPNOTSUPP) {
-		/* BB TODO: When support for special files added to Samba re-verify this path */
-		if (err_iov[0].iov_base && err_buftype[0] != CIFS_NO_BUFFER &&
-		    ((struct smb2_hdr *)err_iov[0].iov_base)->Command == SMB2_CREATE &&
-		    ((struct smb2_hdr *)err_iov[0].iov_base)->Status == STATUS_STOPPED_ON_SYMLINK) {
-			rc = smb2_parse_symlink_response(cifs_sb, err_iov, &data->symlink_target);
-			if (rc)
-				goto out;
-		}
-		*reparse = true;
-		create_options |= OPEN_REPARSE_POINT;
-
-		/* Failed on a symbolic link - query a reparse point info */
-		cifs_get_readable_path(tcon, full_path, &cfile);
-		rc = smb2_compound_op(xid, tcon, cifs_sb, full_path, FILE_READ_ATTRIBUTES,
-				      FILE_OPEN, create_options, ACL_NO_MODE, data,
-				      SMB2_OP_POSIX_QUERY_INFO, cfile,
-				      &sidsbuf, &sidsbuflen, NULL, NULL);
-	}
-
-	if (rc == 0) {
-		sidsbuf_end = sidsbuf + sidsbuflen;
-
-		owner_len = posix_info_sid_size(sidsbuf, sidsbuf_end);
-		if (owner_len == -1) {
-			rc = -EINVAL;
-			goto out;
-		}
-		memcpy(owner, sidsbuf, owner_len);
-
-		group_len = posix_info_sid_size(
-			sidsbuf + owner_len, sidsbuf_end);
-		if (group_len == -1) {
-			rc = -EINVAL;
-			goto out;
-		}
-		memcpy(group, sidsbuf + owner_len, group_len);
-	}
-
-out:
-	kfree(sidsbuf);
-	free_rsp_buf(err_buftype[0], err_iov[0].iov_base);
-	free_rsp_buf(err_buftype[1], err_iov[1].iov_base);
-	free_rsp_buf(err_buftype[2], err_iov[2].iov_base);
-	return rc;
-}
-
-int
-smb2_mkdir(const unsigned int xid, struct inode *parent_inode, umode_t mode,
-	   struct cifs_tcon *tcon, const char *name,
-	   struct cifs_sb_info *cifs_sb)
-{
-	return smb2_compound_op(xid, tcon, cifs_sb, name,
-				FILE_WRITE_ATTRIBUTES, FILE_CREATE,
-				CREATE_NOT_FILE, mode, NULL, SMB2_OP_MKDIR,
-				NULL, NULL, NULL, NULL, NULL);
-}
-
-void
-smb2_mkdir_setinfo(struct inode *inode, const char *name,
-		   struct cifs_sb_info *cifs_sb, struct cifs_tcon *tcon,
-		   const unsigned int xid)
-{
-	FILE_BASIC_INFO data;
-	struct cifsInodeInfo *cifs_i;
-	struct cifsFileInfo *cfile;
-	u32 dosattrs;
-	int tmprc;
-
-	memset(&data, 0, sizeof(data));
-	cifs_i = CIFS_I(inode);
-	dosattrs = cifs_i->cifsAttrs | ATTR_READONLY;
-	data.Attributes = cpu_to_le32(dosattrs);
-	cifs_get_writable_path(tcon, name, FIND_WR_ANY, &cfile);
-	tmprc = smb2_compound_op(xid, tcon, cifs_sb, name,
-				 FILE_WRITE_ATTRIBUTES, FILE_CREATE,
-				 CREATE_NOT_FILE, ACL_NO_MODE,
-				 &data, SMB2_OP_SET_INFO, cfile, NULL, NULL, NULL, NULL);
-	if (tmprc == 0)
-		cifs_i->cifsAttrs = dosattrs;
-}
-
-int
-smb2_rmdir(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
-	   struct cifs_sb_info *cifs_sb)
-{
-	drop_cached_dir_by_name(xid, tcon, name, cifs_sb);
-	return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
-				CREATE_NOT_FILE, ACL_NO_MODE,
-				NULL, SMB2_OP_RMDIR, NULL, NULL, NULL, NULL, NULL);
-}
-
-int
-smb2_unlink(const unsigned int xid, struct cifs_tcon *tcon, const char *name,
-	    struct cifs_sb_info *cifs_sb)
-{
-	return smb2_compound_op(xid, tcon, cifs_sb, name, DELETE, FILE_OPEN,
-				CREATE_DELETE_ON_CLOSE | OPEN_REPARSE_POINT,
-				ACL_NO_MODE, NULL, SMB2_OP_DELETE, NULL, NULL, NULL, NULL, NULL);
-}
-
-static int
-smb2_set_path_attr(const unsigned int xid, struct cifs_tcon *tcon,
-		   const char *from_name, const char *to_name,
-		   struct cifs_sb_info *cifs_sb, __u32 access, int command,
-		   struct cifsFileInfo *cfile)
-{
-	__le16 *smb2_to_name = NULL;
-	int rc;
-
-	smb2_to_name = cifs_convert_path_to_utf16(to_name, cifs_sb);
-	if (smb2_to_name == NULL) {
-		rc = -ENOMEM;
-		goto smb2_rename_path;
-	}
-	rc = smb2_compound_op(xid, tcon, cifs_sb, from_name, access,
-			      FILE_OPEN, 0, ACL_NO_MODE, smb2_to_name,
-			      command, cfile, NULL, NULL, NULL, NULL);
-smb2_rename_path:
-	kfree(smb2_to_name);
-	return rc;
-}
-
-int
-smb2_rename_path(const unsigned int xid, struct cifs_tcon *tcon,
-		 const char *from_name, const char *to_name,
-		 struct cifs_sb_info *cifs_sb)
-{
-	struct cifsFileInfo *cfile;
-
-	drop_cached_dir_by_name(xid, tcon, from_name, cifs_sb);
-	cifs_get_writable_path(tcon, from_name, FIND_WR_WITH_DELETE, &cfile);
-
-	return smb2_set_path_attr(xid, tcon, from_name, to_name,
-				  cifs_sb, DELETE, SMB2_OP_RENAME, cfile);
-}
-
-int
-smb2_create_hardlink(const unsigned int xid, struct cifs_tcon *tcon,
-		     const char *from_name, const char *to_name,
-		     struct cifs_sb_info *cifs_sb)
-{
-	return smb2_set_path_attr(xid, tcon, from_name, to_name, cifs_sb,
-				  FILE_READ_ATTRIBUTES, SMB2_OP_HARDLINK,
-				  NULL);
-}
-
-int
-smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
-		   const char *full_path, __u64 size,
-		   struct cifs_sb_info *cifs_sb, bool set_alloc)
-{
-	__le64 eof = cpu_to_le64(size);
-	struct cifsFileInfo *cfile;
-
-	cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
-	return smb2_compound_op(xid, tcon, cifs_sb, full_path,
-				FILE_WRITE_DATA, FILE_OPEN, 0, ACL_NO_MODE,
-				&eof, SMB2_OP_SET_EOF, cfile, NULL, NULL, NULL, NULL);
-}
-
-int
-smb2_set_file_info(struct inode *inode, const char *full_path,
-		   FILE_BASIC_INFO *buf, const unsigned int xid)
-{
-	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
-	struct tcon_link *tlink;
-	struct cifs_tcon *tcon;
-	struct cifsFileInfo *cfile;
-	int rc;
-
-	if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) &&
-	    (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) &&
-	    (buf->Attributes == 0))
-		return 0; /* would be a no op, no sense sending this */
-
-	tlink = cifs_sb_tlink(cifs_sb);
-	if (IS_ERR(tlink))
-		return PTR_ERR(tlink);
-	tcon = tlink_tcon(tlink);
-
-	cifs_get_writable_path(tcon, full_path, FIND_WR_ANY, &cfile);
-	rc = smb2_compound_op(xid, tcon, cifs_sb, full_path,
-			      FILE_WRITE_ATTRIBUTES, FILE_OPEN,
-			      0, ACL_NO_MODE, buf, SMB2_OP_SET_INFO, cfile,
-			      NULL, NULL, NULL, NULL);
-	cifs_put_tlink(tlink);
-	return rc;
-}