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Allocate a uint16_t internal SMB1 mid for an SMB2 request.
Add a back pointer from the faked up smb_request struct
to the smb2 request.
Getting ready to add restart code for blocking locks,
share mode violations and oplocks in SMB2.
Jeremy.
Remove the bool ms_dfs_link parameter from smbd_do_qfilepathinfo.
It is not possible for this to be a DFS link. Remove the check_msdfs_link()
call from call_trans2qfilepathinfo() - the call to filename_convert()
above with a ucf_flags of zero *MUST* catch a DFS link and return
NT_STATUS_PATH_NOT_COVERED in this case, so the code below checking
for msdfs links is redundent. Don't add this to 3.5.x, as it's an
optimization but not needed to fix bug #7339 - MSDFS is non-functional in 3.5.x.
Jeremy.
In the refactoring around filename_convert, the split between the functions
resolve_dfspath() and resolve_dfspath_wcard() was lost, leaving us only with
resolve_dfspath_wcard().
Internally resolve_dfspath_wcard() calls dfs_redirect() only with a
"allow_wcards" flag of true, wheras the old resolve_dfspath() would call with a
value of false. The loss of this case causes dfs_redirect to always masquerade
DFS links as directories, even when they are being queried directly by a trans2
QPATHINFO call. We should only masquerade DFS links as directories when called
from a SMBsearch or trans2 findfirst/findnext - which was the intent of the
"allow_wcards" flag.
This patch adds back an allow_wcards bool parameter to
resolve_dfspath_wcard(). This bool is set from the state of the ucf_flags when
filename_convert() is called.
I will follow this up with a new smbclient-based torture test that will prevent
us from ever regressing our DFS support again.
Jeremy.
When the notify_array cannot be loaded correctly,
do not keep the half-baked parsing results in the global variable.
This can lead to segfaults next time notify_load is entered and
the seqnum has not changed. This has been seen in a case
where mixed smbd versions were running in a CTDB cluster
(versions with and w/o commit c216d1e6 that changed the
notify_entry structure).
There will be missed notifications until all smbds are at the
same software level, but this should be acceptable and is better
than crashing and interrupting client operations.
This fix cleans up the notify_array, removes the unparseable data
from the TDB and returns a fresh notify_array that can be worked
with.
The NDR_PRINT_DEBUG had to be moved to only be called when the
parsing succeeded, it was seen to cause additional segfaults.
The status variable is intentionally left to NT_STATUS_OK to not
make callers abort and report errors to the clients and make them
disconnect.
Signed-off-by: Christian Ambach <christian.ambach@de.ibm.com>
