assign a superblock to named attribute files on nfs41_open(), to prevent crashing in nfs41_write()
also avoid updating the attribute cache with named attribute files on close and write
Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
was incorrectly using file_attributes instead of create attributes to check
if we are creating a file or a directory. it lead to creating directories
with archive set.
on creation of a new superblock, construct a bitmap for the default attribute mask to be used for GETATTR and READDIR requests on that filesystem. mask out any unsupported attributes, and store the bitmap in the field nfs41_superblock.default_getattr
replaced function init_getattr_request() with nfs41_superblock_getattr_mask(), which returns a copy of superblock->default_getattr
removed the locking in nfs41_superblock_supported_attrs() and nfs41_superblock_supported_attrs_exclcreat(), as the supported_attrs and suppattr_exclcreat fields are read-only after the superblock is first initialized. also factored out their common code into a bitmap_intersect() function in util.h
Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
the upcall to set an EA was crashing in nfs41_open() on a null superblock, because nfs41_rpc_openattr() was returning a filehandle without a superblock. copy the parent file's superblock to the returned filehandle
Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
allow callers of nfs41_open() and nfs41_create() to pass arbitrary attributes fo
r use with open_args.openhow.how.createattrs and create_args.createattrs
http://msdn.microsoft.com/en-us/library/cc232085%28v=prot.10%29.aspx : "STATUS_INVALID_PARAMETER: An invalid parameter was passed for FileName or FileNameLength, or the target file was open, or the RootDirectory field value was nonzero for a network operation."
as network filesystems are not expected to support this, return STATUS_INVALID_PARAMETER instead of STATUS_NOT_SUPPORTED
Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
fail attempts to set/get reparse points when the filename is no longer than the vnetroot name (plus a \) to prevent these operations on a volume. also adds checks for non-null buffers to pass Set/GetPointInvalidParamTest
Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
instead of appending a fh value when creating a silly rename name,
we'll append a timestamp. using fh value was problematic because
it was creating a filename longer than 64char long which is
currently out max_filename_size.
use RtlUnicodeToUTF8N() instead of RtlUnicodeStringToAnsiString() to preserve unicode filenames; passes fileio test UnicodeOnDiskTest
Signed-off-by: Casey Bodley <cbodley@citi.umich.edu>
file can be opened with a delete_on_close flag set. this file can be
opened again as long as opens specify "file_share_delete" access.
after receiving the cleanup irp, the handle enters "delete-pending"
state. opens in this state must fail with status_delete_pending.
file query for standard_info.delete_pending now should return true.
calling setattr with disposition=1 puts the file in "delete-pending"
state.
calling setattr with dispositon=0 will clear delete_on_close only
if file is in "delete-pending" state. otherwise, setattr is ignored.
removing notepad opens file as a directory ifdef
for volume query notepad supplies insufficient buffer space but
doesn't like buffer_too_small error code. it seems to be fine
with partial buffer filled and buffer_overflow error.
entry->filename points to something the app address space. if app was
started and the ctrl-ed c, then when nfsd picks up the upcall it should
check if the pointer is still valid
windows can send a create irp with dispostion representing creation
of the file and specify DesiredAccess of 0.
we were treating no data access as lookup but in this case, we still
need to create a file. so send an open with a read access and
request no delegation to be returned.
