s3: Add onefs_open.c with code copied verbatim from smbd/open.c

This is an intermediate step that makes it much easier to see how the
OneFS SMB_VFS_CREATE_FILE implementation diverges from stock samba.
The goal is that more common code can be refactored into utility
functions.

1 files changed, 2028 insertions, 0 deletions

diff --git a/source3/modules/onefs_open.c b/source3/modules/onefs_open.c
new file mode 100644
index 0000000000..f45cc471ce
--- /dev/null
+++ b/source3/modules/onefs_open.c
@@ -0,0 +1,2028 @@
+/*
+   Unix SMB/CIFS implementation.
+   file opening and share modes
+   Copyright (C) Andrew Tridgell 1992-1998
+   Copyright (C) Jeremy Allison 2001-2004
+   Copyright (C) Volker Lendecke 2005
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+extern const struct generic_mapping file_generic_mapping;
+extern bool global_client_failed_oplock_break;
+
+struct deferred_open_record {
+	bool delayed_for_oplocks;
+	struct file_id id;
+};
+
+static NTSTATUS create_file_unixpath(connection_struct *conn,
+				     struct smb_request *req,
+				     const char *fname,
+				     uint32_t access_mask,
+				     uint32_t share_access,
+				     uint32_t create_disposition,
+				     uint32_t create_options,
+				     uint32_t file_attributes,
+				     uint32_t oplock_request,
+				     uint64_t allocation_size,
+				     struct security_descriptor *sd,
+				     struct ea_list *ea_list,
+
+				     files_struct **result,
+				     int *pinfo,
+				     SMB_STRUCT_STAT *psbuf);
+
+/****************************************************************************
+ Open a file.
+****************************************************************************/
+
+static NTSTATUS open_file(files_struct *fsp,
+			  connection_struct *conn,
+			  struct smb_request *req,
+			  const char *parent_dir,
+			  const char *name,
+			  const char *path,
+			  SMB_STRUCT_STAT *psbuf,
+			  int flags,
+			  mode_t unx_mode,
+			  uint32 access_mask, /* client requested access mask. */
+			  uint32 open_access_mask) /* what we're actually using in the open. */
+{
+	NTSTATUS status = NT_STATUS_OK;
+	int accmode = (flags & O_ACCMODE);
+	int local_flags = flags;
+	bool file_existed = VALID_STAT(*psbuf);
+
+	fsp->fh->fd = -1;
+	errno = EPERM;
+
+	/* Check permissions */
+
+	/*
+	 * This code was changed after seeing a client open request
+	 * containing the open mode of (DENY_WRITE/read-only) with
+	 * the 'create if not exist' bit set. The previous code
+	 * would fail to open the file read only on a read-only share
+	 * as it was checking the flags parameter  directly against O_RDONLY,
+	 * this was failing as the flags parameter was set to O_RDONLY|O_CREAT.
+	 * JRA.
+	 */
+
+	if (!CAN_WRITE(conn)) {
+		/* It's a read-only share - fail if we wanted to write. */
+		if(accmode != O_RDONLY) {
+			DEBUG(3,("Permission denied opening %s\n", path));
+			return NT_STATUS_ACCESS_DENIED;
+		} else if(flags & O_CREAT) {
+			/* We don't want to write - but we must make sure that
+			   O_CREAT doesn't create the file if we have write
+			   access into the directory.
+			*/
+			flags &= ~O_CREAT;
+			local_flags &= ~O_CREAT;
+		}
+	}
+
+	/*
+	 * This little piece of insanity is inspired by the
+	 * fact that an NT client can open a file for O_RDONLY,
+	 * but set the create disposition to FILE_EXISTS_TRUNCATE.
+	 * If the client *can* write to the file, then it expects to
+	 * truncate the file, even though it is opening for readonly.
+	 * Quicken uses this stupid trick in backup file creation...
+	 * Thanks *greatly* to "David W. Chapman Jr." <dwcjr@inethouston.net>
+	 * for helping track this one down. It didn't bite us in 2.0.x
+	 * as we always opened files read-write in that release. JRA.
+	 */
+
+	if ((accmode == O_RDONLY) && ((flags & O_TRUNC) == O_TRUNC)) {
+		DEBUG(10,("open_file: truncate requested on read-only open "
+			  "for file %s\n", path));
+		local_flags = (flags & ~O_ACCMODE)|O_RDWR;
+	}
+
+	if ((open_access_mask & (FILE_READ_DATA|FILE_WRITE_DATA|FILE_APPEND_DATA|FILE_EXECUTE)) ||
+	    (!file_existed && (local_flags & O_CREAT)) ||
+	    ((local_flags & O_TRUNC) == O_TRUNC) ) {
+		const char *wild;
+
+		/*
+		 * We can't actually truncate here as the file may be locked.
+		 * open_file_ntcreate will take care of the truncate later. JRA.
+		 */
+
+		local_flags &= ~O_TRUNC;
+
+#if defined(O_NONBLOCK) && defined(S_ISFIFO)
+		/*
+		 * We would block on opening a FIFO with no one else on the
+		 * other end. Do what we used to do and add O_NONBLOCK to the
+		 * open flags. JRA.
+		 */
+
+		if (file_existed && S_ISFIFO(psbuf->st_mode)) {
+			local_flags |= O_NONBLOCK;
+		}
+#endif
+
+		/* Don't create files with Microsoft wildcard characters. */
+		if (fsp->base_fsp) {
+			/*
+			 * wildcard characters are allowed in stream names
+			 * only test the basefilename
+			 */
+			wild = fsp->base_fsp->fsp_name;
+		} else {
+			wild = path;
+		}
+		if ((local_flags & O_CREAT) && !file_existed &&
+		    ms_has_wild(wild))  {
+			return NT_STATUS_OBJECT_NAME_INVALID;
+		}
+
+		/* Actually do the open */
+		status = fd_open(conn, path, fsp, local_flags, unx_mode);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(3,("Error opening file %s (%s) (local_flags=%d) "
+				 "(flags=%d)\n",
+				 path,nt_errstr(status),local_flags,flags));
+			return status;
+		}
+
+		if ((local_flags & O_CREAT) && !file_existed) {
+
+			/* Inherit the ACL if required */
+			if (lp_inherit_perms(SNUM(conn))) {
+				inherit_access_posix_acl(conn, parent_dir, path,
+						   unx_mode);
+			}
+
+			/* Change the owner if required. */
+			if (lp_inherit_owner(SNUM(conn))) {
+				change_file_owner_to_parent(conn, parent_dir,
+							    fsp);
+			}
+
+			notify_fname(conn, NOTIFY_ACTION_ADDED,
+				     FILE_NOTIFY_CHANGE_FILE_NAME, path);
+		}
+
+	} else {
+		fsp->fh->fd = -1; /* What we used to call a stat open. */
+		if (file_existed) {
+			status = check_open_rights(conn,
+					path,
+					access_mask);
+			if (!NT_STATUS_IS_OK(status)) {
+				DEBUG(10, ("open_file: Access denied on "
+					"file %s\n",
+					path));
+				return status;
+			}
+		}
+	}
+
+	if (!file_existed) {
+		int ret;
+
+		if (fsp->fh->fd == -1) {
+			ret = SMB_VFS_STAT(conn, path, psbuf);
+		} else {
+			ret = SMB_VFS_FSTAT(fsp, psbuf);
+			/* If we have an fd, this stat should succeed. */
+			if (ret == -1) {
+				DEBUG(0,("Error doing fstat on open file %s "
+					 "(%s)\n", path,strerror(errno) ));
+			}
+		}
+
+		/* For a non-io open, this stat failing means file not found. JRA */
+		if (ret == -1) {
+			status = map_nt_error_from_unix(errno);
+			fd_close(fsp);
+			return status;
+		}
+	}
+
+	/*
+	 * POSIX allows read-only opens of directories. We don't
+	 * want to do this (we use a different code path for this)
+	 * so catch a directory open and return an EISDIR. JRA.
+	 */
+
+	if(S_ISDIR(psbuf->st_mode)) {
+		fd_close(fsp);
+		errno = EISDIR;
+		return NT_STATUS_FILE_IS_A_DIRECTORY;
+	}
+
+	fsp->mode = psbuf->st_mode;
+	fsp->file_id = vfs_file_id_from_sbuf(conn, psbuf);
+	fsp->vuid = req ? req->vuid : UID_FIELD_INVALID;
+	fsp->file_pid = req ? req->smbpid : 0;
+	fsp->can_lock = True;
+	fsp->can_read = (access_mask & (FILE_READ_DATA)) ? True : False;
+	if (!CAN_WRITE(conn)) {
+		fsp->can_write = False;
+	} else {
+		fsp->can_write = (access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ?
+			True : False;
+	}
+	fsp->print_file = False;
+	fsp->modified = False;
+	fsp->sent_oplock_break = NO_BREAK_SENT;
+	fsp->is_directory = False;
+	if (conn->aio_write_behind_list &&
+	    is_in_path(path, conn->aio_write_behind_list, conn->case_sensitive)) {
+		fsp->aio_write_behind = True;
+	}
+
+	string_set(&fsp->fsp_name, path);
+	fsp->wcp = NULL; /* Write cache pointer. */
+
+	DEBUG(2,("%s opened file %s read=%s write=%s (numopen=%d)\n",
+		 conn->server_info->unix_name,
+		 fsp->fsp_name,
+		 BOOLSTR(fsp->can_read), BOOLSTR(fsp->can_write),
+		 conn->num_files_open));
+
+	errno = 0;
+	return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Handle the 1 second delay in returning a SHARING_VIOLATION error.
+****************************************************************************/
+
+static void defer_open(struct share_mode_lock *lck,
+		       struct timeval request_time,
+		       struct timeval timeout,
+		       struct smb_request *req,
+		       struct deferred_open_record *state)
+{
+	int i;
+
+	/* Paranoia check */
+
+	for (i=0; i<lck->num_share_modes; i++) {
+		struct share_mode_entry *e = &lck->share_modes[i];
+
+		if (!is_deferred_open_entry(e)) {
+			continue;
+		}
+
+		if (procid_is_me(&e->pid) && (e->op_mid == req->mid)) {
+			DEBUG(0, ("Trying to defer an already deferred "
+				  "request: mid=%d, exiting\n", req->mid));
+			exit_server("attempt to defer a deferred request");
+		}
+	}
+
+	/* End paranoia check */
+
+	DEBUG(10,("defer_open_sharing_error: time [%u.%06u] adding deferred "
+		  "open entry for mid %u\n",
+		  (unsigned int)request_time.tv_sec,
+		  (unsigned int)request_time.tv_usec,
+		  (unsigned int)req->mid));
+
+	if (!push_deferred_smb_message(req, request_time, timeout,
+				       (char *)state, sizeof(*state))) {
+		exit_server("push_deferred_smb_message failed");
+	}
+	add_deferred_open(lck, req->mid, request_time, state->id);
+
+	/*
+	 * Push the MID of this packet on the signing queue.
+	 * We only do this once, the first time we push the packet
+	 * onto the deferred open queue, as this has a side effect
+	 * of incrementing the response sequence number.
+	 */
+
+	srv_defer_sign_response(req->mid);
+}
+
+static void schedule_defer_open(struct share_mode_lock *lck,
+				struct timeval request_time,
+				struct smb_request *req)
+{
+	struct deferred_open_record state;
+
+	/* This is a relative time, added to the absolute
+	   request_time value to get the absolute timeout time.
+	   Note that if this is the second or greater time we enter
+	   this codepath for this particular request mid then
+	   request_time is left as the absolute time of the *first*
+	   time this request mid was processed. This is what allows
+	   the request to eventually time out. */
+
+	struct timeval timeout;
+
+	/* Normally the smbd we asked should respond within
+	 * OPLOCK_BREAK_TIMEOUT seconds regardless of whether
+	 * the client did, give twice the timeout as a safety
+	 * measure here in case the other smbd is stuck
+	 * somewhere else. */
+
+	timeout = timeval_set(OPLOCK_BREAK_TIMEOUT*2, 0);
+
+	/* Nothing actually uses state.delayed_for_oplocks
+	   but it's handy to differentiate in debug messages
+	   between a 30 second delay due to oplock break, and
+	   a 1 second delay for share mode conflicts. */
+
+	state.delayed_for_oplocks = True;
+	state.id = lck->id;
+
+	if (!request_timed_out(request_time, timeout)) {
+		defer_open(lck, request_time, timeout, req, &state);
+	}
+}
+
+/****************************************************************************
+ Open a file with a share mode. Passed in an already created files_struct *.
+****************************************************************************/
+
+static NTSTATUS open_file_ntcreate(connection_struct *conn,
+			    struct smb_request *req,
+			    const char *fname,
+			    SMB_STRUCT_STAT *psbuf,
+			    uint32 access_mask,		/* access bits (FILE_READ_DATA etc.) */
+			    uint32 share_access,	/* share constants (FILE_SHARE_READ etc) */
+			    uint32 create_disposition,	/* FILE_OPEN_IF etc. */
+			    uint32 create_options,	/* options such as delete on close. */
+			    uint32 new_dos_attributes,	/* attributes used for new file. */
+			    int oplock_request, 	/* internal Samba oplock codes. */
+							/* Information (FILE_EXISTS etc.) */
+			    int *pinfo,
+			    files_struct *fsp)
+{
+	int flags=0;
+	int flags2=0;
+	bool file_existed = VALID_STAT(*psbuf);
+	bool def_acl = False;
+	bool posix_open = False;
+	bool new_file_created = False;
+	struct file_id id;
+	NTSTATUS fsp_open = NT_STATUS_ACCESS_DENIED;
+	mode_t new_unx_mode = (mode_t)0;
+	mode_t unx_mode = (mode_t)0;
+	int info;
+	uint32 existing_dos_attributes = 0;
+	struct pending_message_list *pml = NULL;
+	struct timeval request_time = timeval_zero();
+	struct share_mode_lock *lck = NULL;
+	uint32 open_access_mask = access_mask;
+	NTSTATUS status;
+	int ret_flock;
+	char *parent_dir;
+	const char *newname;
+
+	ZERO_STRUCT(id);
+
+	if (conn->printer) {
+		/*
+		 * Printers are handled completely differently.
+		 * Most of the passed parameters are ignored.
+		 */
+
+		if (pinfo) {
+			*pinfo = FILE_WAS_CREATED;
+		}
+
+		DEBUG(10, ("open_file_ntcreate: printer open fname=%s\n", fname));
+
+		return print_fsp_open(req, conn, fname, req->vuid, fsp);
+	}
+
+	if (!parent_dirname_talloc(talloc_tos(), fname, &parent_dir,
+				   &newname)) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	if (new_dos_attributes & FILE_FLAG_POSIX_SEMANTICS) {
+		posix_open = True;
+		unx_mode = (mode_t)(new_dos_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
+		new_dos_attributes = 0;
+	} else {
+		/* We add aARCH to this as this mode is only used if the file is
+		 * created new. */
+		unx_mode = unix_mode(conn, new_dos_attributes | aARCH, fname,
+				     parent_dir);
+	}
+
+	DEBUG(10, ("open_file_ntcreate: fname=%s, dos_attrs=0x%x "
+		   "access_mask=0x%x share_access=0x%x "
+		   "create_disposition = 0x%x create_options=0x%x "
+		   "unix mode=0%o oplock_request=%d\n",
+		   fname, new_dos_attributes, access_mask, share_access,
+		   create_disposition, create_options, unx_mode,
+		   oplock_request));
+
+	if ((req == NULL) && ((oplock_request & INTERNAL_OPEN_ONLY) == 0)) {
+		DEBUG(0, ("No smb request but not an internal only open!\n"));
+		return NT_STATUS_INTERNAL_ERROR;
+	}
+
+	/*
+	 * Only non-internal opens can be deferred at all
+	 */
+
+	if ((req != NULL)
+	    && ((pml = get_open_deferred_message(req->mid)) != NULL)) {
+		struct deferred_open_record *state =
+			(struct deferred_open_record *)pml->private_data.data;
+
+		/* Remember the absolute time of the original
+		   request with this mid. We'll use it later to
+		   see if this has timed out. */
+
+		request_time = pml->request_time;
+
+		/* Remove the deferred open entry under lock. */
+		lck = get_share_mode_lock(talloc_tos(), state->id, NULL, NULL,
+					  NULL);
+		if (lck == NULL) {
+			DEBUG(0, ("could not get share mode lock\n"));
+		} else {
+			del_deferred_open_entry(lck, req->mid);
+			TALLOC_FREE(lck);
+		}
+
+		/* Ensure we don't reprocess this message. */
+		remove_deferred_open_smb_message(req->mid);
+	}
+
+	status = check_name(conn, fname);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (!posix_open) {
+		new_dos_attributes &= SAMBA_ATTRIBUTES_MASK;
+		if (file_existed) {
+			existing_dos_attributes = dos_mode(conn, fname, psbuf);
+		}
+	}
+
+	/* ignore any oplock requests if oplocks are disabled */
+	if (!lp_oplocks(SNUM(conn)) || global_client_failed_oplock_break ||
+	    IS_VETO_OPLOCK_PATH(conn, fname)) {
+		/* Mask off everything except the private Samba bits. */
+		oplock_request &= SAMBA_PRIVATE_OPLOCK_MASK;
+	}
+
+	/* this is for OS/2 long file names - say we don't support them */
+	if (!lp_posix_pathnames() && strstr(fname,".+,;=[].")) {
+		/* OS/2 Workplace shell fix may be main code stream in a later
+		 * release. */
+		DEBUG(5,("open_file_ntcreate: OS/2 long filenames are not "
+			 "supported.\n"));
+		if (use_nt_status()) {
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+		return NT_STATUS_DOS(ERRDOS, ERRcannotopen);
+	}
+
+	switch( create_disposition ) {
+		/*
+		 * Currently we're using FILE_SUPERSEDE as the same as
+		 * FILE_OVERWRITE_IF but they really are
+		 * different. FILE_SUPERSEDE deletes an existing file
+		 * (requiring delete access) then recreates it.
+		 */
+		case FILE_SUPERSEDE:
+			/* If file exists replace/overwrite. If file doesn't
+			 * exist create. */
+			flags2 |= (O_CREAT | O_TRUNC);
+			break;
+
+		case FILE_OVERWRITE_IF:
+			/* If file exists replace/overwrite. If file doesn't
+			 * exist create. */
+			flags2 |= (O_CREAT | O_TRUNC);
+			break;
+
+		case FILE_OPEN:
+			/* If file exists open. If file doesn't exist error. */
+			if (!file_existed) {
+				DEBUG(5,("open_file_ntcreate: FILE_OPEN "
+					 "requested for file %s and file "
+					 "doesn't exist.\n", fname ));
+				errno = ENOENT;
+				return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+			}
+			break;
+
+		case FILE_OVERWRITE:
+			/* If file exists overwrite. If file doesn't exist
+			 * error. */
+			if (!file_existed) {
+				DEBUG(5,("open_file_ntcreate: FILE_OVERWRITE "
+					 "requested for file %s and file "
+					 "doesn't exist.\n", fname ));
+				errno = ENOENT;
+				return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+			}
+			flags2 |= O_TRUNC;
+			break;
+
+		case FILE_CREATE:
+			/* If file exists error. If file doesn't exist
+			 * create. */
+			if (file_existed) {
+				DEBUG(5,("open_file_ntcreate: FILE_CREATE "
+					 "requested for file %s and file "
+					 "already exists.\n", fname ));
+				if (S_ISDIR(psbuf->st_mode)) {
+					errno = EISDIR;
+				} else {
+					errno = EEXIST;
+				}
+				return map_nt_error_from_unix(errno);
+			}
+			flags2 |= (O_CREAT|O_EXCL);
+			break;
+
+		case FILE_OPEN_IF:
+			/* If file exists open. If file doesn't exist
+			 * create. */
+			flags2 |= O_CREAT;
+			break;
+
+		default:
+			return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	/* We only care about matching attributes on file exists and
+	 * overwrite. */
+
+	if (!posix_open && file_existed && ((create_disposition == FILE_OVERWRITE) ||
+			     (create_disposition == FILE_OVERWRITE_IF))) {
+		if (!open_match_attributes(conn, fname,
+					   existing_dos_attributes,
+					   new_dos_attributes, psbuf->st_mode,
+					   unx_mode, &new_unx_mode)) {
+			DEBUG(5,("open_file_ntcreate: attributes missmatch "
+				 "for file %s (%x %x) (0%o, 0%o)\n",
+				 fname, existing_dos_attributes,
+				 new_dos_attributes,
+				 (unsigned int)psbuf->st_mode,
+				 (unsigned int)unx_mode ));
+			errno = EACCES;
+			return NT_STATUS_ACCESS_DENIED;
+		}
+	}
+
+	status = calculate_access_mask(conn, fname, file_existed,
+					access_mask,
+					&access_mask);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(10, ("open_file_ntcreate: calculate_access_mask "
+			"on file %s returned %s\n",
+			fname,
+			nt_errstr(status)));
+		return status;
+	}
+
+	open_access_mask = access_mask;
+
+	if ((flags2 & O_TRUNC) || (oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
+		open_access_mask |= FILE_WRITE_DATA; /* This will cause oplock breaks. */
+	}
+
+	DEBUG(10, ("open_file_ntcreate: fname=%s, after mapping "
+		   "access_mask=0x%x\n", fname, access_mask ));
+
+	/*
+	 * Note that we ignore the append flag as append does not
+	 * mean the same thing under DOS and Unix.
+	 */
+
+	if ((access_mask & (FILE_WRITE_DATA | FILE_APPEND_DATA)) ||
+			(oplock_request & FORCE_OPLOCK_BREAK_TO_NONE)) {
+		/* DENY_DOS opens are always underlying read-write on the
+		   file handle, no matter what the requested access mask
+		    says. */
+		if ((create_options & NTCREATEX_OPTIONS_PRIVATE_DENY_DOS) ||
+			access_mask & (FILE_READ_ATTRIBUTES|FILE_READ_DATA|FILE_READ_EA|FILE_EXECUTE)) {
+			flags = O_RDWR;
+		} else {
+			flags = O_WRONLY;
+		}
+	} else {
+		flags = O_RDONLY;
+	}
+
+	/*
+	 * Currently we only look at FILE_WRITE_THROUGH for create options.
+	 */
+
+#if defined(O_SYNC)
+	if ((create_options & FILE_WRITE_THROUGH) && lp_strict_sync(SNUM(conn))) {
+		flags2 |= O_SYNC;
+	}
+#endif /* O_SYNC */
+
+	if (posix_open && (access_mask & FILE_APPEND_DATA)) {
+		flags2 |= O_APPEND;
+	}
+
+	if (!posix_open && !CAN_WRITE(conn)) {
+		/*
+		 * We should really return a permission denied error if either
+		 * O_CREAT or O_TRUNC are set, but for compatibility with
+		 * older versions of Samba we just AND them out.
+		 */
+		flags2 &= ~(O_CREAT|O_TRUNC);
+	}
+
+	/*
+	 * Ensure we can't write on a read-only share or file.
+	 */
+
+	if (flags != O_RDONLY && file_existed &&
+	    (!CAN_WRITE(conn) || IS_DOS_READONLY(existing_dos_attributes))) {
+		DEBUG(5,("open_file_ntcreate: write access requested for "
+			 "file %s on read only %s\n",
+			 fname, !CAN_WRITE(conn) ? "share" : "file" ));
+		errno = EACCES;
+		return NT_STATUS_ACCESS_DENIED;
+	}
+
+	fsp->file_id = vfs_file_id_from_sbuf(conn, psbuf);
+	fsp->share_access = share_access;
+	fsp->fh->private_options = create_options;
+	fsp->access_mask = open_access_mask; /* We change this to the
+					      * requested access_mask after
+					      * the open is done. */
+	fsp->posix_open = posix_open;
+
+	/* Ensure no SAMBA_PRIVATE bits can be set. */
+	fsp->oplock_type = (oplock_request & ~SAMBA_PRIVATE_OPLOCK_MASK);
+
+	if (timeval_is_zero(&request_time)) {
+		request_time = fsp->open_time;
+	}
+
+	if (file_existed) {
+		struct timespec old_write_time = get_mtimespec(psbuf);
+		id = vfs_file_id_from_sbuf(conn, psbuf);
+
+		lck = get_share_mode_lock(talloc_tos(), id,
+					  conn->connectpath,
+					  fname, &old_write_time);
+
+		if (lck == NULL) {
+			DEBUG(0, ("Could not get share mode lock\n"));
+			return NT_STATUS_SHARING_VIOLATION;
+		}
+
+		/* First pass - send break only on batch oplocks. */
+		if ((req != NULL)
+		    && delay_for_oplocks(lck, fsp, req->mid, 1,
+					 oplock_request)) {
+			schedule_defer_open(lck, request_time, req);
+			TALLOC_FREE(lck);
+			return NT_STATUS_SHARING_VIOLATION;
+		}
+
+		/* Use the client requested access mask here, not the one we
+		 * open with. */
+		status = open_mode_check(conn, fname, lck,
+					 access_mask, share_access,
+					 create_options, &file_existed);
+
+		if (NT_STATUS_IS_OK(status)) {
+			/* We might be going to allow this open. Check oplock
+			 * status again. */
+			/* Second pass - send break for both batch or
+			 * exclusive oplocks. */
+			if ((req != NULL)
+			     && delay_for_oplocks(lck, fsp, req->mid, 2,
+						  oplock_request)) {
+				schedule_defer_open(lck, request_time, req);
+				TALLOC_FREE(lck);
+				return NT_STATUS_SHARING_VIOLATION;
+			}
+		}
+
+		if (NT_STATUS_EQUAL(status, NT_STATUS_DELETE_PENDING)) {
+			/* DELETE_PENDING is not deferred for a second */
+			TALLOC_FREE(lck);
+			return status;
+		}
+
+		if (!NT_STATUS_IS_OK(status)) {
+			uint32 can_access_mask;
+			bool can_access = True;
+
+			SMB_ASSERT(NT_STATUS_EQUAL(status, NT_STATUS_SHARING_VIOLATION));
+
+			/* Check if this can be done with the deny_dos and fcb
+			 * calls. */
+			if (create_options &
+			    (NTCREATEX_OPTIONS_PRIVATE_DENY_DOS|
+			     NTCREATEX_OPTIONS_PRIVATE_DENY_FCB)) {
+				if (req == NULL) {
+					DEBUG(0, ("DOS open without an SMB "
+						  "request!\n"));
+					TALLOC_FREE(lck);
+					return NT_STATUS_INTERNAL_ERROR;
+				}
+
+				/* Use the client requested access mask here,
+				 * not the one we open with. */
+				status = fcb_or_dos_open(req,
+							conn,
+							fsp,
+							fname,
+							id,
+							req->smbpid,
+							req->vuid,
+							access_mask,
+							share_access,
+							create_options);
+
+				if (NT_STATUS_IS_OK(status)) {
+					TALLOC_FREE(lck);
+					if (pinfo) {
+						*pinfo = FILE_WAS_OPENED;
+					}
+					return NT_STATUS_OK;
+				}
+			}
+
+			/*
+			 * This next line is a subtlety we need for
+			 * MS-Access. If a file open will fail due to share
+			 * permissions and also for security (access) reasons,
+			 * we need to return the access failed error, not the
+			 * share error. We can't open the file due to kernel
+			 * oplock deadlock (it's possible we failed above on
+			 * the open_mode_check()) so use a userspace check.
+			 */
+
+			if (flags & O_RDWR) {
+				can_access_mask = FILE_READ_DATA|FILE_WRITE_DATA;
+			} else if (flags & O_WRONLY) {
+				can_access_mask = FILE_WRITE_DATA;
+			} else {
+				can_access_mask = FILE_READ_DATA;
+			}
+
+			if (((can_access_mask & FILE_WRITE_DATA) && !CAN_WRITE(conn)) ||
+			    !can_access_file_data(conn,fname,psbuf,can_access_mask)) {
+				can_access = False;
+			}
+
+			/*
+			 * If we're returning a share violation, ensure we
+			 * cope with the braindead 1 second delay.
+			 */
+
+			if (!(oplock_request & INTERNAL_OPEN_ONLY) &&
+			    lp_defer_sharing_violations()) {
+				struct timeval timeout;
+				struct deferred_open_record state;
+				int timeout_usecs;
+
+				/* this is a hack to speed up torture tests
+				   in 'make test' */
+				timeout_usecs = lp_parm_int(SNUM(conn),
+							    "smbd","sharedelay",
+							    SHARING_VIOLATION_USEC_WAIT);
+
+				/* This is a relative time, added to the absolute
+				   request_time value to get the absolute timeout time.
+				   Note that if this is the second or greater time we enter
+				   this codepath for this particular request mid then
+				   request_time is left as the absolute time of the *first*
+				   time this request mid was processed. This is what allows
+				   the request to eventually time out. */
+
+				timeout = timeval_set(0, timeout_usecs);
+
+				/* Nothing actually uses state.delayed_for_oplocks
+				   but it's handy to differentiate in debug messages
+				   between a 30 second delay due to oplock break, and
+				   a 1 second delay for share mode conflicts. */
+
+				state.delayed_for_oplocks = False;
+				state.id = id;
+
+				if ((req != NULL)
+				    && !request_timed_out(request_time,
+							  timeout)) {
+					defer_open(lck, request_time, timeout,
+						   req, &state);
+				}
+			}
+
+			TALLOC_FREE(lck);
+			if (can_access) {
+				/*
+				 * We have detected a sharing violation here
+				 * so return the correct error code
+				 */
+				status = NT_STATUS_SHARING_VIOLATION;
+			} else {
+				status = NT_STATUS_ACCESS_DENIED;
+			}
+			return status;
+		}
+
+		/*
+		 * We exit this block with the share entry *locked*.....
+		 */
+	}
+
+	SMB_ASSERT(!file_existed || (lck != NULL));
+
+	/*
+	 * Ensure we pay attention to default ACLs on directories if required.
+	 */
+
+        if ((flags2 & O_CREAT) && lp_inherit_acls(SNUM(conn)) &&
+	    (def_acl = directory_has_default_acl(conn, parent_dir))) {
+		unx_mode = 0777;
+	}
+
+	DEBUG(4,("calling open_file with flags=0x%X flags2=0x%X mode=0%o, "
+		"access_mask = 0x%x, open_access_mask = 0x%x\n",
+		 (unsigned int)flags, (unsigned int)flags2,
+		 (unsigned int)unx_mode, (unsigned int)access_mask,
+		 (unsigned int)open_access_mask));
+
+	/*
+	 * open_file strips any O_TRUNC flags itself.
+	 */
+
+	fsp_open = open_file(fsp, conn, req, parent_dir, newname, fname, psbuf,
+			     flags|flags2, unx_mode, access_mask,
+			     open_access_mask);
+
+	if (!NT_STATUS_IS_OK(fsp_open)) {
+		if (lck != NULL) {
+			TALLOC_FREE(lck);
+		}
+		return fsp_open;
+	}
+
+	if (!file_existed) {
+		struct timespec old_write_time = get_mtimespec(psbuf);
+		/*
+		 * Deal with the race condition where two smbd's detect the
+		 * file doesn't exist and do the create at the same time. One
+		 * of them will win and set a share mode, the other (ie. this
+		 * one) should check if the requested share mode for this
+		 * create is allowed.
+		 */
+
+		/*
+		 * Now the file exists and fsp is successfully opened,
+		 * fsp->dev and fsp->inode are valid and should replace the
+		 * dev=0,inode=0 from a non existent file. Spotted by
+		 * Nadav Danieli <nadavd@exanet.com>. JRA.
+		 */
+
+		id = fsp->file_id;
+
+		lck = get_share_mode_lock(talloc_tos(), id,
+					  conn->connectpath,
+					  fname, &old_write_time);
+
+		if (lck == NULL) {
+			DEBUG(0, ("open_file_ntcreate: Could not get share "
+				  "mode lock for %s\n", fname));
+			fd_close(fsp);
+			return NT_STATUS_SHARING_VIOLATION;
+		}
+
+		/* First pass - send break only on batch oplocks. */
+		if ((req != NULL)
+		    && delay_for_oplocks(lck, fsp, req->mid, 1,
+					 oplock_request)) {
+			schedule_defer_open(lck, request_time, req);
+			TALLOC_FREE(lck);
+			fd_close(fsp);
+			return NT_STATUS_SHARING_VIOLATION;
+		}
+
+		status = open_mode_check(conn, fname, lck,
+					 access_mask, share_access,
+					 create_options, &file_existed);
+
+		if (NT_STATUS_IS_OK(status)) {
+			/* We might be going to allow this open. Check oplock
+			 * status again. */
+			/* Second pass - send break for both batch or
+			 * exclusive oplocks. */
+			if ((req != NULL)
+			    && delay_for_oplocks(lck, fsp, req->mid, 2,
+						 oplock_request)) {
+				schedule_defer_open(lck, request_time, req);
+				TALLOC_FREE(lck);
+				fd_close(fsp);
+				return NT_STATUS_SHARING_VIOLATION;
+			}
+		}
+
+		if (!NT_STATUS_IS_OK(status)) {
+			struct deferred_open_record state;
+
+			fd_close(fsp);
+
+			state.delayed_for_oplocks = False;
+			state.id = id;
+
+			/* Do it all over again immediately. In the second
+			 * round we will find that the file existed and handle
+			 * the DELETE_PENDING and FCB cases correctly. No need
+			 * to duplicate the code here. Essentially this is a
+			 * "goto top of this function", but don't tell
+			 * anybody... */
+
+			if (req != NULL) {
+				defer_open(lck, request_time, timeval_zero(),
+					   req, &state);
+			}
+			TALLOC_FREE(lck);
+			return status;
+		}
+
+		/*
+		 * We exit this block with the share entry *locked*.....
+		 */
+
+	}
+
+	SMB_ASSERT(lck != NULL);
+
+	/* note that we ignore failure for the following. It is
+           basically a hack for NFS, and NFS will never set one of
+           these only read them. Nobody but Samba can ever set a deny
+           mode and we have already checked our more authoritative
+           locking database for permission to set this deny mode. If
+           the kernel refuses the operations then the kernel is wrong.
+	   note that GPFS supports it as well - jmcd */
+
+	if (fsp->fh->fd != -1) {
+		ret_flock = SMB_VFS_KERNEL_FLOCK(fsp, share_access);
+		if(ret_flock == -1 ){
+
+			TALLOC_FREE(lck);
+			fd_close(fsp);
+
+			return NT_STATUS_SHARING_VIOLATION;
+		}
+	}
+
+	/*
+	 * At this point onwards, we can guarentee that the share entry
+	 * is locked, whether we created the file or not, and that the
+	 * deny mode is compatible with all current opens.
+	 */
+
+	/*
+	 * If requested, truncate the file.
+	 */
+
+	if (flags2&O_TRUNC) {
+		/*
+		 * We are modifing the file after open - update the stat
+		 * struct..
+		 */
+		if ((SMB_VFS_FTRUNCATE(fsp, 0) == -1) ||
+		    (SMB_VFS_FSTAT(fsp, psbuf)==-1)) {
+			status = map_nt_error_from_unix(errno);
+			TALLOC_FREE(lck);
+			fd_close(fsp);
+			return status;
+		}
+	}
+
+	/* Record the options we were opened with. */
+	fsp->share_access = share_access;
+	fsp->fh->private_options = create_options;
+	/*
+	 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
+	 */
+	fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
+
+	if (file_existed) {
+		/* stat opens on existing files don't get oplocks. */
+		if (is_stat_open(open_access_mask)) {
+			fsp->oplock_type = NO_OPLOCK;
+		}
+
+		if (!(flags2 & O_TRUNC)) {
+			info = FILE_WAS_OPENED;
+		} else {
+			info = FILE_WAS_OVERWRITTEN;
+		}
+	} else {
+		info = FILE_WAS_CREATED;
+	}
+
+	if (pinfo) {
+		*pinfo = info;
+	}
+
+	/*
+	 * Setup the oplock info in both the shared memory and
+	 * file structs.
+	 */
+
+	if ((fsp->oplock_type != NO_OPLOCK) &&
+	    (fsp->oplock_type != FAKE_LEVEL_II_OPLOCK)) {
+		if (!set_file_oplock(fsp, fsp->oplock_type)) {
+			/* Could not get the kernel oplock */
+			fsp->oplock_type = NO_OPLOCK;
+		}
+	}
+
+	if (info == FILE_WAS_OVERWRITTEN || info == FILE_WAS_CREATED || info == FILE_WAS_SUPERSEDED) {
+		new_file_created = True;
+	}
+
+	set_share_mode(lck, fsp, conn->server_info->utok.uid, 0,
+		       fsp->oplock_type);
+
+	/* Handle strange delete on close create semantics. */
+	if (create_options & FILE_DELETE_ON_CLOSE) {
+
+		status = can_set_delete_on_close(fsp, True, new_dos_attributes);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			/* Remember to delete the mode we just added. */
+			del_share_mode(lck, fsp);
+			TALLOC_FREE(lck);
+			fd_close(fsp);
+			return status;
+		}
+		/* Note that here we set the *inital* delete on close flag,
+		   not the regular one. The magic gets handled in close. */
+		fsp->initial_delete_on_close = True;
+	}
+
+	if (new_file_created) {
+		/* Files should be initially set as archive */
+		if (lp_map_archive(SNUM(conn)) ||
+		    lp_store_dos_attributes(SNUM(conn))) {
+			if (!posix_open) {
+				SMB_STRUCT_STAT tmp_sbuf;
+				SET_STAT_INVALID(tmp_sbuf);
+				if (file_set_dosmode(
+					    conn, fname,
+					    new_dos_attributes | aARCH,
+					    &tmp_sbuf, parent_dir,
+					    true) == 0) {
+					unx_mode = tmp_sbuf.st_mode;
+				}
+			}
+		}
+	}
+
+	/*
+	 * Take care of inherited ACLs on created files - if default ACL not
+	 * selected.
+	 */
+
+	if (!posix_open && !file_existed && !def_acl) {
+
+		int saved_errno = errno; /* We might get ENOSYS in the next
+					  * call.. */
+
+		if (SMB_VFS_FCHMOD_ACL(fsp, unx_mode) == -1 &&
+		    errno == ENOSYS) {
+			errno = saved_errno; /* Ignore ENOSYS */
+		}
+
+	} else if (new_unx_mode) {
+
+		int ret = -1;
+
+		/* Attributes need changing. File already existed. */
+
+		{
+			int saved_errno = errno; /* We might get ENOSYS in the
+						  * next call.. */
+			ret = SMB_VFS_FCHMOD_ACL(fsp, new_unx_mode);
+
+			if (ret == -1 && errno == ENOSYS) {
+				errno = saved_errno; /* Ignore ENOSYS */
+			} else {
+				DEBUG(5, ("open_file_ntcreate: reset "
+					  "attributes of file %s to 0%o\n",
+					  fname, (unsigned int)new_unx_mode));
+				ret = 0; /* Don't do the fchmod below. */
+			}
+		}
+
+		if ((ret == -1) &&
+		    (SMB_VFS_FCHMOD(fsp, new_unx_mode) == -1))
+			DEBUG(5, ("open_file_ntcreate: failed to reset "
+				  "attributes of file %s to 0%o\n",
+				  fname, (unsigned int)new_unx_mode));
+	}
+
+	/* If this is a successful open, we must remove any deferred open
+	 * records. */
+	if (req != NULL) {
+		del_deferred_open_entry(lck, req->mid);
+	}
+	TALLOC_FREE(lck);
+
+	return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Open a directory from an NT SMB call.
+****************************************************************************/
+
+static NTSTATUS open_directory(connection_struct *conn,
+			       struct smb_request *req,
+			       const char *fname,
+			       SMB_STRUCT_STAT *psbuf,
+			       uint32 access_mask,
+			       uint32 share_access,
+			       uint32 create_disposition,
+			       uint32 create_options,
+			       uint32 file_attributes,
+			       int *pinfo,
+			       files_struct **result)
+{
+	files_struct *fsp = NULL;
+	bool dir_existed = VALID_STAT(*psbuf) ? True : False;
+	struct share_mode_lock *lck = NULL;
+	NTSTATUS status;
+	struct timespec mtimespec;
+	int info = 0;
+
+	DEBUG(5,("open_directory: opening directory %s, access_mask = 0x%x, "
+		 "share_access = 0x%x create_options = 0x%x, "
+		 "create_disposition = 0x%x, file_attributes = 0x%x\n",
+		 fname,
+		 (unsigned int)access_mask,
+		 (unsigned int)share_access,
+		 (unsigned int)create_options,
+		 (unsigned int)create_disposition,
+		 (unsigned int)file_attributes));
+
+	if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
+			(conn->fs_capabilities & FILE_NAMED_STREAMS) &&
+			is_ntfs_stream_name(fname)) {
+		DEBUG(2, ("open_directory: %s is a stream name!\n", fname));
+		return NT_STATUS_NOT_A_DIRECTORY;
+	}
+
+	status = calculate_access_mask(conn, fname, dir_existed,
+					access_mask,
+					&access_mask);
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(10, ("open_directory: calculate_access_mask "
+			"on file %s returned %s\n",
+			fname,
+			nt_errstr(status)));
+		return status;
+	}
+
+	switch( create_disposition ) {
+		case FILE_OPEN:
+
+			info = FILE_WAS_OPENED;
+
+			/*
+			 * We want to follow symlinks here.
+			 */
+
+			if (SMB_VFS_STAT(conn, fname, psbuf) != 0) {
+				return map_nt_error_from_unix(errno);
+			}
+
+			break;
+
+		case FILE_CREATE:
+
+			/* If directory exists error. If directory doesn't
+			 * exist create. */
+
+			status = mkdir_internal(conn,
+						fname,
+						file_attributes,
+						psbuf);
+
+			if (!NT_STATUS_IS_OK(status)) {
+				DEBUG(2, ("open_directory: unable to create "
+					  "%s. Error was %s\n", fname,
+					  nt_errstr(status)));
+				return status;
+			}
+
+			info = FILE_WAS_CREATED;
+			break;
+
+		case FILE_OPEN_IF:
+			/*
+			 * If directory exists open. If directory doesn't
+			 * exist create.
+			 */
+
+			status = mkdir_internal(conn,
+						fname,
+						file_attributes,
+						psbuf);
+
+			if (NT_STATUS_IS_OK(status)) {
+				info = FILE_WAS_CREATED;
+			}
+
+			if (NT_STATUS_EQUAL(status,
+					    NT_STATUS_OBJECT_NAME_COLLISION)) {
+				info = FILE_WAS_OPENED;
+				status = NT_STATUS_OK;
+			}
+
+			break;
+
+		case FILE_SUPERSEDE:
+		case FILE_OVERWRITE:
+		case FILE_OVERWRITE_IF:
+		default:
+			DEBUG(5,("open_directory: invalid create_disposition "
+				 "0x%x for directory %s\n",
+				 (unsigned int)create_disposition, fname));
+			return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	if(!S_ISDIR(psbuf->st_mode)) {
+		DEBUG(5,("open_directory: %s is not a directory !\n",
+			 fname ));
+		return NT_STATUS_NOT_A_DIRECTORY;
+	}
+
+	if (info == FILE_WAS_OPENED) {
+		status = check_open_rights(conn,
+					fname,
+					access_mask);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(10, ("open_directory: check_open_rights on "
+				"file %s failed with %s\n",
+				fname,
+				nt_errstr(status)));
+			return status;
+		}
+	}
+
+	status = file_new(req, conn, &fsp);
+	if(!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	/*
+	 * Setup the files_struct for it.
+	 */
+
+	fsp->mode = psbuf->st_mode;
+	fsp->file_id = vfs_file_id_from_sbuf(conn, psbuf);
+	fsp->vuid = req ? req->vuid : UID_FIELD_INVALID;
+	fsp->file_pid = req ? req->smbpid : 0;
+	fsp->can_lock = False;
+	fsp->can_read = False;
+	fsp->can_write = False;
+
+	fsp->share_access = share_access;
+	fsp->fh->private_options = create_options;
+	/*
+	 * According to Samba4, SEC_FILE_READ_ATTRIBUTE is always granted,
+	 */
+	fsp->access_mask = access_mask | FILE_READ_ATTRIBUTES;
+	fsp->print_file = False;
+	fsp->modified = False;
+	fsp->oplock_type = NO_OPLOCK;
+	fsp->sent_oplock_break = NO_BREAK_SENT;
+	fsp->is_directory = True;
+	fsp->posix_open = (file_attributes & FILE_FLAG_POSIX_SEMANTICS) ? True : False;
+
+	string_set(&fsp->fsp_name,fname);
+
+	mtimespec = get_mtimespec(psbuf);
+
+	lck = get_share_mode_lock(talloc_tos(), fsp->file_id,
+				  conn->connectpath,
+				  fname, &mtimespec);
+
+	if (lck == NULL) {
+		DEBUG(0, ("open_directory: Could not get share mode lock for %s\n", fname));
+		file_free(req, fsp);
+		return NT_STATUS_SHARING_VIOLATION;
+	}
+
+	status = open_mode_check(conn, fname, lck,
+				access_mask, share_access,
+				create_options, &dir_existed);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		TALLOC_FREE(lck);
+		file_free(req, fsp);
+		return status;
+	}
+
+	set_share_mode(lck, fsp, conn->server_info->utok.uid, 0, NO_OPLOCK);
+
+	/* For directories the delete on close bit at open time seems
+	   always to be honored on close... See test 19 in Samba4 BASE-DELETE. */
+	if (create_options & FILE_DELETE_ON_CLOSE) {
+		status = can_set_delete_on_close(fsp, True, 0);
+		if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, NT_STATUS_DIRECTORY_NOT_EMPTY)) {
+			TALLOC_FREE(lck);
+			file_free(req, fsp);
+			return status;
+		}
+
+		if (NT_STATUS_IS_OK(status)) {
+			/* Note that here we set the *inital* delete on close flag,
+			   not the regular one. The magic gets handled in close. */
+			fsp->initial_delete_on_close = True;
+		}
+	}
+
+	TALLOC_FREE(lck);
+
+	if (pinfo) {
+		*pinfo = info;
+	}
+
+	*result = fsp;
+	return NT_STATUS_OK;
+}
+
+/*
+ * If a main file is opened for delete, all streams need to be checked for
+ * !FILE_SHARE_DELETE. Do this by opening with DELETE_ACCESS.
+ * If that works, delete them all by setting the delete on close and close.
+ */
+
+static NTSTATUS open_streams_for_delete(connection_struct *conn,
+					const char *fname)
+{
+	struct stream_struct *stream_info;
+	files_struct **streams;
+	int i;
+	unsigned int num_streams;
+	TALLOC_CTX *frame = talloc_stackframe();
+	NTSTATUS status;
+
+	status = SMB_VFS_STREAMINFO(conn, NULL, fname, talloc_tos(),
+				    &num_streams, &stream_info);
+
+	if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_IMPLEMENTED)
+	    || NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
+		DEBUG(10, ("no streams around\n"));
+		TALLOC_FREE(frame);
+		return NT_STATUS_OK;
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		DEBUG(10, ("SMB_VFS_STREAMINFO failed: %s\n",
+			   nt_errstr(status)));
+		goto fail;
+	}
+
+	DEBUG(10, ("open_streams_for_delete found %d streams\n",
+		   num_streams));
+
+	if (num_streams == 0) {
+		TALLOC_FREE(frame);
+		return NT_STATUS_OK;
+	}
+
+	streams = TALLOC_ARRAY(talloc_tos(), files_struct *, num_streams);
+	if (streams == NULL) {
+		DEBUG(0, ("talloc failed\n"));
+		status = NT_STATUS_NO_MEMORY;
+		goto fail;
+	}
+
+	for (i=0; i<num_streams; i++) {
+		char *streamname;
+
+		if (strequal(stream_info[i].name, "::$DATA")) {
+			streams[i] = NULL;
+			continue;
+		}
+
+		streamname = talloc_asprintf(talloc_tos(), "%s%s", fname,
+					     stream_info[i].name);
+
+		if (streamname == NULL) {
+			DEBUG(0, ("talloc_aprintf failed\n"));
+			status = NT_STATUS_NO_MEMORY;
+			goto fail;
+		}
+
+		status = create_file_unixpath
+			(conn,			/* conn */
+			 NULL,			/* req */
+			 streamname,		/* fname */
+			 DELETE_ACCESS,		/* access_mask */
+			 FILE_SHARE_READ | FILE_SHARE_WRITE
+			 | FILE_SHARE_DELETE,	/* share_access */
+			 FILE_OPEN,		/* create_disposition*/
+			 NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE, /* create_options */
+			 FILE_ATTRIBUTE_NORMAL,	/* file_attributes */
+			 0,			/* oplock_request */
+			 0,			/* allocation_size */
+			 NULL,			/* sd */
+			 NULL,			/* ea_list */
+			 &streams[i],		/* result */
+			 NULL,			/* pinfo */
+			 NULL);			/* psbuf */
+
+		TALLOC_FREE(streamname);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(10, ("Could not open stream %s: %s\n",
+				   streamname, nt_errstr(status)));
+			break;
+		}
+	}
+
+	/*
+	 * don't touch the variable "status" beyond this point :-)
+	 */
+
+	for (i -= 1 ; i >= 0; i--) {
+		if (streams[i] == NULL) {
+			continue;
+		}
+
+		DEBUG(10, ("Closing stream # %d, %s\n", i,
+			   streams[i]->fsp_name));
+		close_file(NULL, streams[i], NORMAL_CLOSE);
+	}
+
+ fail:
+	TALLOC_FREE(frame);
+	return status;
+}
+
+/*
+ * Wrapper around open_file_ntcreate and open_directory
+ */
+
+static NTSTATUS create_file_unixpath(connection_struct *conn,
+				     struct smb_request *req,
+				     const char *fname,
+				     uint32_t access_mask,
+				     uint32_t share_access,
+				     uint32_t create_disposition,
+				     uint32_t create_options,
+				     uint32_t file_attributes,
+				     uint32_t oplock_request,
+				     uint64_t allocation_size,
+				     struct security_descriptor *sd,
+				     struct ea_list *ea_list,
+
+				     files_struct **result,
+				     int *pinfo,
+				     SMB_STRUCT_STAT *psbuf)
+{
+	SMB_STRUCT_STAT sbuf;
+	int info = FILE_WAS_OPENED;
+	files_struct *base_fsp = NULL;
+	files_struct *fsp = NULL;
+	NTSTATUS status;
+
+	DEBUG(10,("create_file_unixpath: access_mask = 0x%x "
+		  "file_attributes = 0x%x, share_access = 0x%x, "
+		  "create_disposition = 0x%x create_options = 0x%x "
+		  "oplock_request = 0x%x ea_list = 0x%p, sd = 0x%p, "
+		  "fname = %s\n",
+		  (unsigned int)access_mask,
+		  (unsigned int)file_attributes,
+		  (unsigned int)share_access,
+		  (unsigned int)create_disposition,
+		  (unsigned int)create_options,
+		  (unsigned int)oplock_request,
+		  ea_list, sd, fname));
+
+	if (create_options & FILE_OPEN_BY_FILE_ID) {
+		status = NT_STATUS_NOT_SUPPORTED;
+		goto fail;
+	}
+
+	if (create_options & NTCREATEX_OPTIONS_INVALID_PARAM_MASK) {
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
+
+	if (req == NULL) {
+		oplock_request |= INTERNAL_OPEN_ONLY;
+	}
+
+	if (psbuf != NULL) {
+		sbuf = *psbuf;
+	}
+	else {
+		if (SMB_VFS_STAT(conn, fname, &sbuf) == -1) {
+			SET_STAT_INVALID(sbuf);
+		}
+	}
+
+	if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
+	    && (access_mask & DELETE_ACCESS)
+	    && !is_ntfs_stream_name(fname)) {
+		/*
+		 * We can't open a file with DELETE access if any of the
+		 * streams is open without FILE_SHARE_DELETE
+		 */
+		status = open_streams_for_delete(conn, fname);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			goto fail;
+		}
+	}
+
+	/* This is the correct thing to do (check every time) but can_delete
+	 * is expensive (it may have to read the parent directory
+	 * permissions). So for now we're not doing it unless we have a strong
+	 * hint the client is really going to delete this file. If the client
+	 * is forcing FILE_CREATE let the filesystem take care of the
+	 * permissions. */
+
+	/* Setting FILE_SHARE_DELETE is the hint. */
+
+	if (lp_acl_check_permissions(SNUM(conn))
+	    && (create_disposition != FILE_CREATE)
+	    && (share_access & FILE_SHARE_DELETE)
+	    && (access_mask & DELETE_ACCESS)
+	    && (!can_delete_file_in_directory(conn, fname))) {
+		status = NT_STATUS_ACCESS_DENIED;
+		goto fail;
+	}
+
+#if 0
+	/* We need to support SeSecurityPrivilege for this. */
+	if ((access_mask & SEC_RIGHT_SYSTEM_SECURITY) &&
+	    !user_has_privileges(current_user.nt_user_token,
+				 &se_security)) {
+		status = NT_STATUS_PRIVILEGE_NOT_HELD;
+		goto fail;
+	}
+#endif
+
+	if ((conn->fs_capabilities & FILE_NAMED_STREAMS)
+	    && is_ntfs_stream_name(fname)
+	    && (!(create_options & NTCREATEX_OPTIONS_PRIVATE_STREAM_DELETE))) {
+		char *base;
+		uint32 base_create_disposition;
+
+		if (create_options & FILE_DIRECTORY_FILE) {
+			status = NT_STATUS_NOT_A_DIRECTORY;
+			goto fail;
+		}
+
+		status = split_ntfs_stream_name(talloc_tos(), fname,
+						&base, NULL);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(10, ("create_file_unixpath: "
+				"split_ntfs_stream_name failed: %s\n",
+				nt_errstr(status)));
+			goto fail;
+		}
+
+		SMB_ASSERT(!is_ntfs_stream_name(base));	/* paranoia.. */
+
+		switch (create_disposition) {
+		case FILE_OPEN:
+			base_create_disposition = FILE_OPEN;
+			break;
+		default:
+			base_create_disposition = FILE_OPEN_IF;
+			break;
+		}
+
+		status = create_file_unixpath(conn, NULL, base, 0,
+					      FILE_SHARE_READ
+					      | FILE_SHARE_WRITE
+					      | FILE_SHARE_DELETE,
+					      base_create_disposition,
+					      0, 0, 0, 0, NULL, NULL,
+					      &base_fsp, NULL, NULL);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(10, ("create_file_unixpath for base %s failed: "
+				   "%s\n", base, nt_errstr(status)));
+			goto fail;
+		}
+		/* we don't need to low level fd */
+		fd_close(base_fsp);
+	}
+
+	/*
+	 * If it's a request for a directory open, deal with it separately.
+	 */
+
+	if (create_options & FILE_DIRECTORY_FILE) {
+
+		if (create_options & FILE_NON_DIRECTORY_FILE) {
+			status = NT_STATUS_INVALID_PARAMETER;
+			goto fail;
+		}
+
+		/* Can't open a temp directory. IFS kit test. */
+		if (!(file_attributes & FILE_FLAG_POSIX_SEMANTICS) &&
+		     (file_attributes & FILE_ATTRIBUTE_TEMPORARY)) {
+			status = NT_STATUS_INVALID_PARAMETER;
+			goto fail;
+		}
+
+		/*
+		 * We will get a create directory here if the Win32
+		 * app specified a security descriptor in the
+		 * CreateDirectory() call.
+		 */
+
+		oplock_request = 0;
+		status = open_directory(
+			conn, req, fname, &sbuf, access_mask, share_access,
+			create_disposition, create_options, file_attributes,
+			&info, &fsp);
+	} else {
+
+		/*
+		 * Ordinary file case.
+		 */
+
+		status = file_new(req, conn, &fsp);
+		if(!NT_STATUS_IS_OK(status)) {
+			goto fail;
+		}
+
+		/*
+		 * We're opening the stream element of a base_fsp
+		 * we already opened. Set up the base_fsp pointer.
+		 */
+		if (base_fsp) {
+			fsp->base_fsp = base_fsp;
+		}
+
+		status = open_file_ntcreate(conn,
+					    req,
+					    fname,
+					    &sbuf,
+					    access_mask,
+					    share_access,
+					    create_disposition,
+					    create_options,
+					    file_attributes,
+					    oplock_request,
+					    &info,
+					    fsp);
+
+		if(!NT_STATUS_IS_OK(status)) {
+			file_free(req, fsp);
+			fsp = NULL;
+		}
+
+		if (NT_STATUS_EQUAL(status, NT_STATUS_FILE_IS_A_DIRECTORY)) {
+
+			/* A stream open never opens a directory */
+
+			if (base_fsp) {
+				status = NT_STATUS_FILE_IS_A_DIRECTORY;
+				goto fail;
+			}
+
+			/*
+			 * Fail the open if it was explicitly a non-directory
+			 * file.
+			 */
+
+			if (create_options & FILE_NON_DIRECTORY_FILE) {
+				status = NT_STATUS_FILE_IS_A_DIRECTORY;
+				goto fail;
+			}
+
+			oplock_request = 0;
+			status = open_directory(
+				conn, req, fname, &sbuf, access_mask,
+				share_access, create_disposition,
+				create_options,	file_attributes,
+				&info, &fsp);
+		}
+	}
+
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+	fsp->base_fsp = base_fsp;
+
+	/*
+	 * According to the MS documentation, the only time the security
+	 * descriptor is applied to the opened file is iff we *created* the
+	 * file; an existing file stays the same.
+	 *
+	 * Also, it seems (from observation) that you can open the file with
+	 * any access mask but you can still write the sd. We need to override
+	 * the granted access before we call set_sd
+	 * Patch for bug #2242 from Tom Lackemann <cessnatomny@yahoo.com>.
+	 */
+
+	if ((sd != NULL) && (info == FILE_WAS_CREATED)
+	    && lp_nt_acl_support(SNUM(conn))) {
+
+		uint32_t sec_info_sent;
+		uint32_t saved_access_mask = fsp->access_mask;
+
+		sec_info_sent = get_sec_info(sd);
+
+		fsp->access_mask = FILE_GENERIC_ALL;
+
+		/* Convert all the generic bits. */
+		security_acl_map_generic(sd->dacl, &file_generic_mapping);
+		security_acl_map_generic(sd->sacl, &file_generic_mapping);
+
+		if (sec_info_sent & (OWNER_SECURITY_INFORMATION|
+					GROUP_SECURITY_INFORMATION|
+					DACL_SECURITY_INFORMATION|
+					SACL_SECURITY_INFORMATION)) {
+			status = SMB_VFS_FSET_NT_ACL(fsp, sec_info_sent, sd);
+		}
+
+		fsp->access_mask = saved_access_mask;
+
+		if (!NT_STATUS_IS_OK(status)) {
+			goto fail;
+		}
+	}
+
+	if ((ea_list != NULL) && (info == FILE_WAS_CREATED)) {
+		status = set_ea(conn, fsp, fname, ea_list);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto fail;
+		}
+	}
+
+	if (!fsp->is_directory && S_ISDIR(sbuf.st_mode)) {
+		status = NT_STATUS_ACCESS_DENIED;
+		goto fail;
+	}
+
+	/* Save the requested allocation size. */
+	if ((info == FILE_WAS_CREATED) || (info == FILE_WAS_OVERWRITTEN)) {
+		if (allocation_size
+		    && (allocation_size > sbuf.st_size)) {
+			fsp->initial_allocation_size = smb_roundup(
+				fsp->conn, allocation_size);
+			if (fsp->is_directory) {
+				/* Can't set allocation size on a directory. */
+				status = NT_STATUS_ACCESS_DENIED;
+				goto fail;
+			}
+			if (vfs_allocate_file_space(
+				    fsp, fsp->initial_allocation_size) == -1) {
+				status = NT_STATUS_DISK_FULL;
+				goto fail;
+			}
+		} else {
+			fsp->initial_allocation_size = smb_roundup(
+				fsp->conn, (uint64_t)sbuf.st_size);
+		}
+	}
+
+	DEBUG(10, ("create_file_unixpath: info=%d\n", info));
+
+	*result = fsp;
+	if (pinfo != NULL) {
+		*pinfo = info;
+	}
+	if (psbuf != NULL) {
+		if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
+			*psbuf = sbuf;
+		}
+		else {
+			SMB_VFS_FSTAT(fsp, psbuf);
+		}
+	}
+	return NT_STATUS_OK;
+
+ fail:
+	DEBUG(10, ("create_file_unixpath: %s\n", nt_errstr(status)));
+
+	if (fsp != NULL) {
+		if (base_fsp && fsp->base_fsp == base_fsp) {
+			/*
+			 * The close_file below will close
+			 * fsp->base_fsp.
+			 */
+			base_fsp = NULL;
+		}
+		close_file(req, fsp, ERROR_CLOSE);
+		fsp = NULL;
+	}
+	if (base_fsp != NULL) {
+		close_file(req, base_fsp, ERROR_CLOSE);
+		base_fsp = NULL;
+	}
+	return status;
+}
+NTSTATUS create_file_default(connection_struct *conn,
+			     struct smb_request *req,
+			     uint16_t root_dir_fid,
+			     const char *fname,
+			     uint32_t create_file_flags,
+			     uint32_t access_mask,
+			     uint32_t share_access,
+			     uint32_t create_disposition,
+			     uint32_t create_options,
+			     uint32_t file_attributes,
+			     uint32_t oplock_request,
+			     uint64_t allocation_size,
+			     struct security_descriptor *sd,
+			     struct ea_list *ea_list,
+
+			     files_struct **result,
+			     int *pinfo,
+			     SMB_STRUCT_STAT *psbuf)
+{
+	struct case_semantics_state *case_state = NULL;
+	SMB_STRUCT_STAT sbuf;
+	int info = FILE_WAS_OPENED;
+	files_struct *fsp = NULL;
+	NTSTATUS status;
+
+	DEBUG(10,("create_file: access_mask = 0x%x "
+		  "file_attributes = 0x%x, share_access = 0x%x, "
+		  "create_disposition = 0x%x create_options = 0x%x "
+		  "oplock_request = 0x%x "
+		  "root_dir_fid = 0x%x, ea_list = 0x%p, sd = 0x%p, "
+		  "create_file_flags = 0x%x, fname = %s\n",
+		  (unsigned int)access_mask,
+		  (unsigned int)file_attributes,
+		  (unsigned int)share_access,
+		  (unsigned int)create_disposition,
+		  (unsigned int)create_options,
+		  (unsigned int)oplock_request,
+		  (unsigned int)root_dir_fid,
+		  ea_list, sd, create_file_flags, fname));
+
+	/*
+	 * Calculate the filename from the root_dir_if if necessary.
+	 */
+
+	if (root_dir_fid != 0) {
+		char *new_fname;
+
+		status = get_relative_fid_filename(conn, req, root_dir_fid,
+						   fname, &new_fname);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto fail;
+		}
+
+		fname = new_fname;
+	}
+
+	/*
+	 * Check to see if this is a mac fork of some kind.
+	 */
+
+	if (is_ntfs_stream_name(fname)) {
+		enum FAKE_FILE_TYPE fake_file_type;
+
+		fake_file_type = is_fake_file(fname);
+
+		if (fake_file_type != FAKE_FILE_TYPE_NONE) {
+
+			/*
+			 * Here we go! support for changing the disk quotas
+			 * --metze
+			 *
+			 * We need to fake up to open this MAGIC QUOTA file
+			 * and return a valid FID.
+			 *
+			 * w2k close this file directly after openening xp
+			 * also tries a QUERY_FILE_INFO on the file and then
+			 * close it
+			 */
+			status = open_fake_file(req, conn, req->vuid,
+						fake_file_type, fname,
+						access_mask, &fsp);
+			if (!NT_STATUS_IS_OK(status)) {
+				goto fail;
+			}
+
+			ZERO_STRUCT(sbuf);
+			goto done;
+		}
+
+		if (!(conn->fs_capabilities & FILE_NAMED_STREAMS)) {
+			status = NT_STATUS_OBJECT_PATH_NOT_FOUND;
+			goto fail;
+		}
+	}
+
+	if ((req != NULL) && (req->flags2 & FLAGS2_DFS_PATHNAMES)) {
+		char *resolved_fname;
+
+		status = resolve_dfspath(talloc_tos(), conn, true, fname,
+					 &resolved_fname);
+
+		if (!NT_STATUS_IS_OK(status)) {
+			/*
+			 * For PATH_NOT_COVERED we had
+			 * reply_botherror(req, NT_STATUS_PATH_NOT_COVERED,
+			 *		   ERRSRV, ERRbadpath);
+			 * Need to fix in callers
+			 */
+			goto fail;
+		}
+		fname = resolved_fname;
+	}
+
+	/*
+	 * Check if POSIX semantics are wanted.
+	 */
+
+	if (file_attributes & FILE_FLAG_POSIX_SEMANTICS) {
+		case_state = set_posix_case_semantics(talloc_tos(), conn);
+	}
+
+	if (create_file_flags & CFF_DOS_PATH) {
+		char *converted_fname;
+
+		SET_STAT_INVALID(sbuf);
+
+		status = unix_convert(talloc_tos(), conn, fname, False,
+				      &converted_fname, NULL, &sbuf);
+		if (!NT_STATUS_IS_OK(status)) {
+			goto fail;
+		}
+		fname = converted_fname;
+	} else {
+		if (psbuf != NULL) {
+			sbuf = *psbuf;
+		} else {
+			if (SMB_VFS_STAT(conn, fname, &sbuf) == -1) {
+				SET_STAT_INVALID(sbuf);
+			}
+		}
+
+	}
+
+	TALLOC_FREE(case_state);
+
+	/* All file access must go through check_name() */
+
+	status = check_name(conn, fname);
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+	status = create_file_unixpath(
+		conn, req, fname, access_mask, share_access,
+		create_disposition, create_options, file_attributes,
+		oplock_request, allocation_size, sd, ea_list,
+		&fsp, &info, &sbuf);
+
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+ done:
+	DEBUG(10, ("create_file: info=%d\n", info));
+
+	*result = fsp;
+	if (pinfo != NULL) {
+		*pinfo = info;
+	}
+	if (psbuf != NULL) {
+		*psbuf = sbuf;
+	}
+	return NT_STATUS_OK;
+
+ fail:
+	DEBUG(10, ("create_file: %s\n", nt_errstr(status)));
+
+	if (fsp != NULL) {
+		close_file(req, fsp, ERROR_CLOSE);
+		fsp = NULL;
+	}
+	return status;
+}