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openat_pathref_fsp() does not need them anymore
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Mar 11 19:19:21 UTC 2022 on sn-devel-184
Soon we want to not require stat() calls before entering
openat_pathref_fsp() anymore but rely on the fstat on the O_PATH file
handle (alternatively the call to fstatat(AT_SYMLINK_NOFOLLOW)) done
properly from within fd_openat(). The callers of non_widelink_open()
expect the stat information to be correct in "smb_fname". Copy it in
case of not opening a symlink in the posix case.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
With the simplifications in non_widelink_open() (don't depend on the
is_directory fsp flag) the main reason for requiring a valid stat
struct in openat_pathref_fsp() is gone. With this change
openat_pathref_fsp() is now capable of being the very first (and
authoritative) name-referencing operation with openat(O_PATH) for a
name.
Without having the stat information around before calling
openat_pathref_fsp(), the call to check_same_dev_ino() becomes
obsolete here.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
If I read Linux' man 2 open right (and susv4 agrees), O_DIRECTORY is
around to make sure opendir() is not raced against non-directory
files. opendir() needs to make sure the underlying object is actually
a directory. O_DIRECTORY is not required for opening directories in
RDONLY mode, regardless of having O_PATH or not.
At this point in openat_pathref_fsp() we don't care about the type of
the underlying object, we do fstat() and distinguish between files and
directories later according to the mode returned from fstat().
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
There's no reason why we would ever want to block on open(O_PATH). The
only cases that to me right now seem relevant is oplock breaks and
FIFOs, which can block forever. Oplock breaks don't happen for
O_PATH (hopefully...) but for the non-O_PATH case we don't want to
block either but we do handle this higher up.
We're handling EWOULDBLOCK for the oplock case correctly in
open_file_ntcreate() by setting up polling. So far we haven't done
this for the implicit openat_pathref_fsp() from filename_convert()
yet. But as our kernel oplock implementation lacks in functionality
big time anyway I would rather fail an open with NETWORK_BUSY than to
sit waiting for an oplock break for 30 seconds.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Lift the conn->cwd_fsp reference one level, we might want to pass in a
real dirfsp in the future.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Move to referencing directories via fsp's instead of names where we
have them around
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
btrfs_fget_compression() is the only real implementation of
VFS_GET_COMPRESSION. It does not use the mem_ctx argument, so it seems
unnecessary to do a full malloc()/free() cycle here. Moreover, if this
was actually required, talloc_stackframe() would be more appropriate
these days as deep within the smbd even loop it does not go through
the libc malloc, but just increments a pointer.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Don't depend on fsp->fsp_flags.is_directory: We can always take the
parent directory fname, chdir into it and openat(O_PATH|O_NOFOLLOW)
the relative file name. To properly handle the symlink case without
having O_PATH, upon failure we need the call to
fstatat(AT_SYMLINK_NOFOLLOW) as a replacement for the fstat-call that
we can do when we successfully opened the relative file name with
O_NOFOLLOW.
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): Thu Mar 10 19:19:06 UTC 2022 on sn-devel-184
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>
If it's really ENOMEM, shadow_copy2_convert() did set this itself. It
might also return ENOENT for example. Found this while working on
other patches.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This will allow us to remove the SMB1 server specific code
when we disable SMB1, and still retain the ability to negotiate
up from SMB1 -> SMB2 for old clients.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Mulder <dmulder@samba.org>
Autobuild-User(master): David Mulder <dmulder@samba.org>
Autobuild-Date(master): Thu Mar 10 17:53:26 UTC 2022 on sn-devel-184
Restricts negotiation to SMB2-only. This will make it easier
to remove the SMB1-only parts of the server later.
The only allowed pre-SMB2 requests are a NBSSrequest
(to set the client NetBIOS name) and a 'normal' NBSSmessage
containing an SMB1 negprot. This allows smbd_smb2_server_connection_read_handler()
to work with older clients that use an initial SMB1negprot to
bootstrap into SMB2.
Eventually all other parts of the SMB1 server will
be removed.
Not yet used.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Mulder <dmulder@samba.org>
Matches the name for the SMB2 connection read handler we're about to use.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: David Mulder <dmulder@samba.org>
mapped_state is a special hack for authenticate_ldap_simple_bind_send()
in order to avoid some additional work in authsam_check_password_internals()
This doesn't apply here. We should also handle wbinfo -a
authentication UPN names, e.g. administrator@DOMAIN,
even if the account belongs to the local sam.
With this change the behavior is consistent also locally on DCs and
also an RODC can handle these requests locally for cached accounts.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13879
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15003
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
mapped_state is only evaluated in authsam_check_password_internals()
of auth_sam.c in source4, so setting it in the auth3 code
doesn't make any difference. I've proved that with
an SMB_ASSERT() and a full pipeline not triggering it.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13879
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not really relevant for now, as USER_INFO_INTERACTIVE_LOGON is
not evaluated in the source3/auth stack. But better add it to
be consistent.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15001
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: David Mulder <dmulder@samba.org>
Autobuild-User(master): David Mulder <dmulder@samba.org>
Autobuild-Date(master): Tue Mar 8 23:05:19 UTC 2022 on sn-devel-184
