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There's no glibc wrapper for openat2() yet, so we need
to use syscall(__NR_openat2) ourself.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
liburing.h will include liburing/compat.h, which either includes
linux/openat2.h or defines struct open_how itself.
This will help with the following changes, which will provide
openat2() via libreplace's system/filesys.h, either including
linux/openat2.h or defining open_how ourself.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
We now also test more path components checking the difference between
OBJECT_NAME_NOT_FOUND and OBJECT_PATH_NOT_FOUND.
We also test with symlinks within the path instead of only checking
symlinks as final path components (at least for the dirfsp part).
This ensures the following commits won't introduce regressions
when adding the openat2(RESOLVE_NO_SYMLINK) optimization.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
CID 1507864
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15140
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Aug 12 21:50:23 UTC 2022 on sn-devel-184
New function doesn't need a TWRP argument and returns NT_STATUS_OK
on successful redirect, not NT_STATUS_PATH_NOT_COVERED.
Comment out the old dfs_path_lookup().
There are now no more users of unix_convert().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Commented out as not yet used but it's easier to see the
new logic this way.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Use dfs_filename_convert() instead. There are now no more callers of dfs_redirect().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Use dfs_filename_convert() instead. Code is now much simpler.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
If the terminal component was an MSDFS link, openat_pathref_fsp_case_insensitive() will
return NT_STATUS_OBJECT_NAME_NOT_FOUND with a VALID_STAT of a symlink.
If this is the case, check if we actually found a terminal MS-DFS link
at the end of the pathname and return NT_STATUS_PATH_NOT_COVERED.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
openat_pathref_dirfsp_nosymlink() can now return NT_STATUS_PATH_NOT_COVERED.
Don't convert this automatically into NT_STATUS_OBJECT_PATH_NOT_FOUND.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Not yet used.
This is what we will use to replace dfs_redirect() in the filename
conversion code. Keep as a wrapper for now as we might want to
add some error checking around the 'hostname' and 'service'
returns.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Not yet used. Preparing to remove 'struct dfs_path'.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Not yet used, but uses check_path_syntax_smb2_msdfs()
so remove the #ifdef's around that.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
#ifdef'ed out as static and not yet used.
We can't just call check_path_syntax() on these as
they are of the form hostname\share[\extrapath]
(where [\extrapath] is optional).
hostname here can be an IPv6 ':' separated address,
which check_path_syntax() fails on due to the streamname
processing.
NB. This also has to cope with out existing (broken)
libsmbclient libraries that sometimes set the DFS
flag and then send a local pathname. Cope by just
calling the normal check_path_syntax() on the
whole pathname in that case.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The Linux kernel SMB1 client has a bug - it sends
DFS pathnames as:
\\server\share\path
instead of:
\server\share\path
Causing us to mis-parse server,share,remaining_path here
and jump into 'goto local_path' at 'share\path' instead
of 'path'.
This doesn't cause an error as the limits on share names
are similar to those on pathnames.
parse_dfs_path() which we call before filename parsing
copes with this by calling trim_char on the leading '\'
characters before processing.
Do the same here so logging of pathnames looks better.
How did I find this ? Lots and lots of manual
testing with the Linux kernel client to make
sure all the recent changes haven't broken Linux
SMB1/2/3 DFS :-).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15144
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This test calls SMB2_Echo in a loop per connection.
For 4 connections with 2 parallel loops use this:
time smbtorture //127.0.0.1/m -Uroot%test smb2.bench.echo \
--option="torture:timelimit=600" \
--option="torture:nprocs=1" \
--option="torture:qdepth=2"
Sometimes the bottleneck is the smbtorture process.
In order to bring the smbd process to 100% cpu, you can use
'--option="libsmb:client_guid=6112f7d3-9528-4a2a-8861-0ca129aae6c4"'
and run multiple instances of the test at the same time,
which both talk to the same smbd process.
This is a very useful test to show how many requests are possible
at the raw SMB2 layer.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Aug 11 19:23:37 UTC 2022 on sn-devel-184
This can now test more than one open/close loop per connection.
time smbtorture //127.0.0.1/m -Uroot%test \
smb2.create.bench-path-contention-shared \
--option='torture:bench_path=' \
--option="torture:timelimit=60" \
--option="torture:nprocs=1" \
--option="torture:qdepth=4"
The default is still 1, but it's very useful for tests.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
We already handle this in the source3/libsmb code, but it's good to
have this also for torture tests.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This improves 'time smbtorture3 //foo/bar -U% local-g-lock-ping-pong -o 50000000'
from ~1.400.000 to ~3.400.000 operations per second any a testsystem.
As we also use TDB_VOLATILE for locking.tdb, this is a much more
realistic test now.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This is inspired by 0d4cb5a641,
which avoids SMB_VFS_FGET_NT_ACL() for the root user again.
Opens with just FILE_READ_ATTRIBUTES are very common, so it's worth
optimizing for it.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Thu Aug 11 06:34:56 UTC 2022 on sn-devel-184
It was introduced in 2002. Probably we no longer need to support
password upgrade from samba-2.2.
Signed-off-by: Pavel Filipenský <pfilipensky@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Enforce fsp is a non-stream one in as many VFS operations as possible in
vfs_default. We really need an assert here instead of returning an error, as
otherwise he can have very hard to diagnose bugs.
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: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Aug 10 16:32:35 UTC 2022 on sn-devel-184
For streams, access is already checked in create_file_unixpath() by
check_base_file_access().
We already skip the access check in this function when doing an IO open of a
file, see above in open_file(), also skip it for "stat opens".
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: Volker Lendecke <vl@samba.org>
