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Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Jun 23 18:29:40 UTC 2023 on atb-devel-224
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Jun 14 00:26:55 UTC 2023 on atb-devel-224
Code denying vfs calls can do:
{
struct smb_vfs_deny_state vfs_deny = {};
smb_vfs_deny_push(&vfs_deny);
VFS calls are not allowed here...
smb_vfs_deny_pop(&vfs_deny);
}
This will allow us to safely run some code under a
tdb chainlock later...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15125
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This allows us to make VFS_FIND local to smbd/vfs.c in the
next step.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15125
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
process_symlink_open() and check_reduced_name() are no longer used,
non_widelink_open() was the only user of both.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
So far we only call CONNECTPATH on full paths. In the future, we'll
have a call that will not have converted a relative path to absolute
just for efficiency reasons. To give shadow_copy2 the chance to still
find the snapshot directory, pass the dirfsp down to it.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Commit d71ef1365cdde47aeb3465699181656b0655fa04 caused a regression where the
creation date on streams wasn't updated anymore on the stream fsp.
By adding a simple wrapper vfs_fget_dos_attributes() that takes care of
- passing only the base_fsp to the VFS, so the VFS can be completely agnostic of
all the streams related complexity like fake fds,
- propagating any updated btime from the base_fsp->fsp_name to the
stream_fsp->fsp_name
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15126
MR: https://gitlab.com/samba-team/samba/-/merge_requests/2643
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
The Linux prototype for openat2 looks like this:
long openat2(int dirfd, const char *pathname,
struct open_how *how, size_t size);
where "struct open_how" is defined in "linux/openat2.h". It is
designed to be extensible with further flags.
The "size" parameter is required because there is no type checking
between userland and kernelspace, so the way for Linux to find which
version of open_how is being passed in is looking at the size:
"open_how" is expected to only every grow with additional fields,
should a change be necessary in the future.
Samba does not have this problem, we can typecheck the struct and
pointers, we expect all VFS modules to be compiled against the current
vfs.h.
For now this adds no functionality, but it will make further patches
much smaller.
Pair-programmed-with: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The type of a fsp should never change, but if this call to
vfs_stat_fsp() is the very first one on this fsp, we must update this
flag.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This reverts commit 322574834f.
Not strictly a revert anymore, but for future work we do need "dirfsp"
in create_file_default() passed through the VFS.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
In a patchset that I'm working on right now there's the need to call
getrealfilename while the code does have a pathref fsp already
around. Doing the name-based call including non_widelink_open is not
necessary in this case. Start by adding the _at based call to the VFS.
For now, fall back to the name-based call. glusterfs-fuse will in a
future patch be converted to fgetxattr.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This makes it possible to more easily handle STOPPED_ON_SYMLINK vs
OBJECT_PATH_NOT_FOUND vs OBJECT_NAME_NOT_FOUND and so on. The next
patch needs this to properly handle symlinks.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Useful if you want to stat/fstat/lstat relative to a directory without
doing chdir first.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
To me this is more descriptive than "fsp->base_fsp != NULL". If this
turns out to be a performance problem, I would go and make this a
static inline in smbd/proto.h.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
NT_STATUS_OBJECT_PATH_NOT_FOUND for a path component failure.
NT_STATUS_OBJECT_NAME_NOT_FOUND for a terminal component failure.
Remove:
samba3.blackbox.test_symlink_traversal.SMB1.posix
samba3.blackbox.smbclient_s3.*.Ensure\ widelinks\ are\ restricted\(.*\)
samba3.blackbox.smbclient_s3.*.follow\ symlinks\ \=\ no\(.*\)
in knownfail.d/symlink_traversal as we now pass these. Only one more fix
remaining to get rid of knownfail.d/symlink_traversal completely.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14911
Signed-off-by: Jeremy Allison <jra@samba.org>
We now only have one function that does this check (check_reduced_name()),
used everywhere.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
We missed these values which follow from MS-FSCC 2.3.80 “FSCTL_OFFLOAD_READ
Reply”:
Flags (4 bytes):
A 32-bit unsigned integer that indicates which flags were returned for this
operation. Possible values for the flags follow. All unused bits are reserved
for future use, SHOULD be set to 0, and MUST be ignored.
OFFLOAD_READ_FLAG_ALL_ZERO_BEYOND_CURRENT_RANGE (0x00000001)
=> The data beyond the current range is logically equivalent to zero.
TransferLength (8 bytes):
A 64-bit unsigned integer that contains the amount, in bytes, of data that the
Token logically represents. This value indicates a contiguous region of the
file from the beginning of the requested offset in the FileOffset field in the
FSCTL_OFFLOAD_READ_INPUT data element (section 2.3.79). This value can be
smaller than the CopyLength field specified in the FSCTL_OFFLOAD_READ_INPUT
data element, which indicates that less data was logically
represented (logically read) with the Token than was requested. The value of
this field MUST be greater than 0x0000000000000000 and MUST be aligned to a
logical sector boundary on the volume.
As we currently only implement COPY_CHUNK over the OFFLOAD VFS interface, the
VFS COPY_CHUNK backend in vfs_default just sets both values to 0 and they are
unused in the SMB frontend.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
With the removal of the call to flock LOCK_MAND, the only remaining use
of this VFS path is to register sharemodes with specific file systems.
Rename the VFS call to reflect that this is no longer related to flock.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Once SMB_VFS_CHDIR() has been called and returned success, cwd_fsp *must* be AT_FDCWD.
We needs this so that SMB_VFS_STAT() can work correctly with
at startup time with modules that need to create pathref fsp's.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Modify all implementations (and the definitions) related to
SMB_VFS_SYS_ACL_GET_FD to accept additional SMB_ACL_TYPE_T type param.
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Not yet used.
Default is NTSTATUS version of parent_smb_fname(). Now
to replace all users of parent_smb_fname() with
SMB_VFS_PARENT_PATHNAME() and then remove parent_smb_fname().
Needed due to snapdirseverywhere code in vfs_shadow_copy2.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Not yet used. Eventually will replace SMB_VFS_SYS_ACL_DELETE_DEF_FILE().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Noel Power <noel.power@suse.com>
This will allow for calling SMB_VFS_FSTREAMINFO in a piecemeal
fashion, at the end of the patch set vfs_fstreaminfo will replace
vfs_streaminfo
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
smb_vfs_call_fset_dos_attributes is looking for the wrong function
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
