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based approach. The only remaining hook into the backend is now
void *(*notify_add)(TALLOC_CTX *mem_ctx,
struct event_context *event_ctx,
files_struct *fsp, uint32 *filter);
(Should we put this through the VFS, so that others can more easily plug in?)
The trick here is that the backend can pick filter bits that the main smbd
should not handle anymore. Thanks to tridge for this idea.
The backend can notify the main smbd process via
void notify_fsp(files_struct *fsp, uint32 action, char *name);
The core patch is not big, what makes this more than 1800 lines are the
individual backends that are considerably changed but can be reviewed
one by one.
Based on this I'll continue with inotify now.
Volker
Allow us to correctly refuse to set delete on close on a
non-empty directory. There are still some delete-on-close
wrinkles to be fixed, but I understand how to do that better
now. I'll fix this tomorrow.
Jeremy.
watch carefully - so I'm doing it in one transaction so I can
roll back).
Change check_name(), reduce_name() and dptr_create() to
return NTSTATUS. This helps a lot in error path processing
and especially in reduce_name() allows us to ditch the flaky
and error-prone saving of errno and return errors directly.
Jeremy.
wcard unlink if bad_path was set. The error
returned here is almost certainly incorrect
and will need testing properly with smbtorture,
but I don't want to forget about this path
(yes Volker I know this is currently incorrect :-).
Jeremy.
particular the NT_STATUS_INVALID_PARAMETER thing was badly wrong. Remove the
changes based on it. Using gentest is much more effective in this respect, but
it will take a while to figure out the wildcard error handling of W2k3.
Volker
under Linux we returned NT_STATUS_NOT_A_DIRECTORY. This is because in the
bad_path==True condition lstat(2) returns ENOTDIR and not ENOENT.
Not sure if we want to necessarily replicate the INVALID_PARAMETER here, but
this is what W2k3 does.
Jeremy, I tried to call you, but you were not around. So I'll leave it up to
you to merge this.
Volker
I'm checking in micro-steps to make them independently checkable. This code
just very severely needs cleanup, but I don't want to break anything. So, be
patient with me, please :-)
Volker
than lots of indented code. Change recursive_rmdir()
to return the smbd standards of True on success, False
on fail (it was doing the reverse, which was very confusing).
Jeremy.
close_file() to NTSTATUS as well.
I'm not sure I got all the error codes right, but as I've never come across a
smb_copy() call in all my Samba work, I'm leaving it at that. If I'm
absolutely bored, I will write a thorough torture test.
As far as I can see, Samba4 even does not have a libcli implementation for
it... :-)
Volker
3_0_24 because I was explicitly asked to, although this needs close
review. Jeremy, I'm sure you will check this thoroughly :-)
In reply_open_and_X the separate "size" variable kills the calculation of the
SPARSE flag returned to the client in the attrib field. In getpathinfo we do
it correctly, and RAW-OPEN (correctly) complains about the difference.
Add the "set the write time" to mknew and create.
For trans2open we were missing the "ofun == 0" ->
NT_STATUS_OBJECT_NAME_COLLISION case, and we dropped the status returned in
favor of ACCESS_DENIED once too many.
Last change is a fix to trans2open: We were returning the attributes given by
the client, not the attributes of the new file.
Volker
The only error path of can_delete() that we're interested in ntcreate&x is the
one of can_delete_file_in_directory(), so call that directly.
The only other one where we might get a NT_STATUS_ACCESS_DENIED is from the
lstat in can_delete, but this is covered later in the open_directory and
open_file_ntcreate calls. open_directory does a stat() in the open case which
also covers the (potential) symlink, and open_file_ntcreate does the open(2)
itself, so this should also work.
This makes can_delete() static to reply.c.
Volker
first of the raw-notify subtests, the one-level test_notify_dir without any
flags around yet.
The tricky part was getting the data structures right, I hope the next tests
don't let that fall over.
fsp->notify is now by default NULL, meaning that nobody has issued a
changenotify call. This means nobody is interested in changes for this
directory.
If that has happened, notify_change_buf collects the changes if no current
request is outstanding, and it collects the requests if no change has happened
since the last request.
Happy New Year, somewhere on this planet it's already 2007 :-)
Volker
P.S: Jeremy, there's a question for you in smbd/files.c line 367.
call_nt_transact_notify_change() is now sync if there are changes around.
A notify_message does a direct reply from within the message, so
process_pending_change_notify_queue is not needed anymore for samba-generated
events. Next step is to restructure the kernel-mechanisms to generate
messages.
Volker
