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Return directory entries as soon as possible via
cli_smb2_list_recv(). This returns just one entry per call to
cli_smb2_list_recv() right out of the buffer without assembling
potentially thousands of entries in a big array. You must call
cli_smb2_recv() until an error (except NT_STATUS_RETRY) happens. This
reduces our latency for smbclient's "dir" command significantly for
large directories. In the future I hope I can do the same thing also for
SMBC_readdir_ctx() to improve all users of our published libsmbclient.
Initial attempts of this routine issued fresh smb2_query_directory
requests asynchronously while the receivers of the entries did their
processing, for example showing them in smbclient's "dir"
command. However, this breaks because for example the "showacls"
smbclient option needs to do synchronous smb requests to do their job,
which we can't do while async requests are pending. Thus I came up
with a semi-synchronous approach to issue additional
smb2_query_directory requests from within cli_smb2_list_recv() and
return NT_STATUS_RETRY. This means that we will call back our caller
via the tevent_req_notify function when a fresh entry is available.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
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): Mon Nov 16 21:18:16 UTC 2020 on sn-devel-184
do_list()/do_list_helper() in source3/client/client.c was the only user of this
argument. And that use was wrong.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Rather than have safe_string.h #include string_wrappers.h, make users of
string_wrappers.h include it explicitly.
includes.h now no longer includes string_wrappers.h transitively. Still
allow includes.h to #include safe_string.h for now so that as many
modules as possible get the safety checks in it.
Signed-off-by: Matthew DeVore <matvore@google.com>
Reviewed-by: David Mulder <dmulder@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Fix bug where renaming to a target name of one
UCS2 character (name length 2 bytes) fails to
a Windows 10 SMB2 server.
The Windows 10 SMB2 server has a minimum length
for a SMB2_FILE_RENAME_INFORMATION buffer of
24 bytes. It returns NT_STATUS_INFO_LENGTH_MISMATCH
if the length is less. This isn't an alignment
issue as Windows client happily 2-byte align
for larget target name sizes. Also the Windows 10
SMB1 server doesn't have this restriction.
If the name length is too short, pad out with
zeros to 24 bytes.
Hard to add a test for this as we don't want to
add this silly restriction to the Samba server
as it would break all non-Windows clients.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14403
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Jul 1 18:59:53 UTC 2020 on sn-devel-184
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 Jun 4 18:36:17 UTC 2020 on sn-devel-184
This was the only remaining user of cli_smb2_getattrE(), and as
cli_qfileinfo_basic() now does all protocols, we can get rid of
cli_smb2_getattrE().
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
The SMB_SET_FILE_BASIC_INFO info level this uses in SMB2
sets 32-bit attributes, so don't use SSVAL, use SIVAL.
No change needed in callers as implicit casts work fine.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Fix all callers. All libsmb SMB2 calls now return 32 bit attributes.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Also rename attr pointers to pattr.
They are pointers to attributes.
Only parameter name changes, no logic changes.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Cleanup. It's never been a UNIX mode, always a DOS attribute field.
Make that explicit.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Fix the SMB2 parsing code.
Cast to a uint16_t for now after pulling the information
as finfo->mode is currently only 16 bits.
We will need this to detect FILE_ATTRIBUTE_REPARSE_POINT in a later commit.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Not converting the sync version to use it, it will go away very soon
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Not converting the sync version to use it, it will go away very soon
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Mon May 25 09:36:15 UTC 2020 on sn-devel-184
It looks like the create_options are accumulated as the depending on the
failure reasons returned for cli_smb2_create_fnum (except for when a
directory is encountered) this looks like a mistake
Fixes:
source3/libsmb/cli_smb2_fnum.c:1870:3: warning: Value stored to 'create_options' is never read <--[clang]
create_options |= FILE_DIRECTORY_FILE;
^
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Ralph Boehme <slow@samba.org>
Both tevent_req_nterror and tevent_req_is_nterror invalidate
"state". Pull the variables out of "state" before calling those two
functions.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We don't need to talloc 8 bytes, they can live on the stack. When we
go async, this can go into the state struct.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
