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When racing to the open and loosing we may get a share_mode violation.
In this case handle the 1-second delay via a defferred open properly.
This requires us to retrieve the share_mode_lock before deferring
open so we don't dereference a NULL pointer assuming we already had
the lck because we were the first opener.
Two openers can stat a file at the same time, see that it doesn't exist,
and then both race to open it first. The loser will enter
onefs_open_file_ntcreate believing that the file doesnt exist, and thus
skip any current state lookups for that file. This includes setting
the file_id, and having a valid stat buffer.
Normally on first create the file_id will be set during the open, but
the second opener in this scenario may fail the open (oplock/share mode)
and file_id will not be set, nor will the stat buffer be valid.
In the error paths of this patch, we now double check that the file_id
and the stat buffer are valid before doing other operations.
When we use the CATIA vfs module and don't have any mapping specified,
we return NULL for the mapped_name, thereby resulting in segfaults.
When we don't have catia mapping, we should just use the old name
instead of returning NULL for the mapped_name.
Signed-off-by: Tim Prouty <tprouty@samba.org>
Since the catia translation is implemented for open, it should not
also be done in createfile. By removing createfile from catia,
translation is now done correctly for the primary open path.
In order to support systems that have custom createfile
implementations that don't eventually call SMB_VFS_OPEN,
SMB_VFS_TRANSLATE_NAME has been expanded to take an additional
argument that specifies direction.
Signed-off-by: Tim Prouty <tprouty@samba.org>
This patch builds out catia to allow fully configurable mappings,
including mappings from single byte to multi-byte characters.
Additionally, a much more complete list of vfs operations are now
covered.
Signed-off-by: Tim Prouty <tprouty@samba.org>
This vop is designed to work in tandem with SMB_VFS_READDIR to allow
vfs modules to make modifications to arbitrary filenames before
they're consumed by callers. Subsequently the core directory
enumeration code in smbd is now changed to free the memory that may be
allocated in a module. This vop enables the new version of catia in
the following patch.
Signed-off-by: Tim Prouty <tprouty@samba.org>
Explictly pass the facility from both smbd and full_audit to syslog.
Really the only major change is to not call openlog() in full_audit if
WITH_SYSLOG is defined, which implies that smbd is already using
syslog. This allows full audit to piggy-back on the same ident as
smbd, while still differentiating the logging via the facility.
This adds a parameter "gpfs:refuse_dacl_protected" that defaults to false.
GPFS has no place to store the SEC_DESC_DACL_PROTECTED ACL bit. With this
parameter we give customers an option to either ignore this bit or refuse
setting an ACL with it.
GPFS sets inherits dir_inhert and file_inherit flags
to files, too, which confuses windows, and seems to
be wrong anyways.
So when mapping a nfs4 acl to a windows acl, we map these
flags away for files.
Michael
This fixes viewing the content of snapshots in the share root directory. We
have to treat the filename that *just* consists of "@GMT-YYYY.MM.DD-HH.MM.SS"
like the share root, which is the current working directory.
into acl_tdb and acl_xattr. Duplicates the code size, but keeps
the code in common so I don't have to do bug fixes in two places
(which is what I really cared about).
Jeremy.
