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1334 Commits

Author SHA1 Message Date
Volker Lendecke
32766db210 smbd: Move fcb_or_dos_open() out of open_file_ntcreate()
This is SMB1-only and pre-ntcreate with only 3 callers that look at
NTCREATEX_OPTIONS_PRIVATE_DENY_[DOS|FCB]. It is a bit less efficient
if it kicks in (we have to recreate the fsp), but SMB1 is less and
less popular, and this particular share mode combination from the
open&x family of calls might not be worth optimizing for.

This adds smb1_utils.[ch] as a kitchen sink for functions that can go
away once we drop SMB1.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-07-08 16:22:37 +00:00
Jeremy Allison
4a9d46dafb s3: smbd: SMB1 add range checks to reply_fclose().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Thu Jul  4 15:40:31 UTC 2019 on sn-devel-184
2019-07-04 15:40:31 +00:00
Jeremy Allison
522fe23612 s3: smbd: SMB1 add range checks to reply_search().
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2019-07-04 14:03:29 +00:00
Volker Lendecke
ce3666fb83 smbd: Remove unused "msg_ctx" from smbd_smb1_do_locks_send()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-07-02 17:01:28 +00:00
Volker Lendecke
0658626776 smbd: Remove unused "msg_ctx" from do_unlock()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-07-02 17:01:28 +00:00
Volker Lendecke
871bb7562c smbd: Remove unused brlock code
No PENDING locks in brlock.tdb anymore.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:19 +00:00
Volker Lendecke
4c1d574ebe smbd: Use smbd_smb1_do_locks_send() in reply_lockingX()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:19 +00:00
Volker Lendecke
c4649b3ad6 smbd: Use smbd_smb1_do_locks_send() in reply_lock()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:19 +00:00
Volker Lendecke
1967bb8538 smbd: Use smbd_smb1_do_locks_send() in reply_lockread()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:19 +00:00
Volker Lendecke
2d746d1364 smbd: Ping dbwrap_watch on locking.tdb for in smbd_do_unlocking()
smbd_smb1_do_locks_send() watches the file's locking.tdb record for
changes, like the oplock code does. Unlocking a byte range thus must
trigger a retry.

With the share mode cache get_existing_share_mode_lock() is pretty
cheap. We have to write out the share mode record with the current
code, but an obvious optimization will be a share_mode_do_locked doing
all this without actually unmarshalling the locking.tdb entry. And --
there's precedence for this pattern in downgrade_lease()...

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:19 +00:00
Volker Lendecke
67f89bb330 smbd: Return "blocker_pid" from do_lock()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:18 +00:00
Volker Lendecke
ff992d1c6c smbd: Use smbd_do_unlocking() in reply_unlock()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:17 +00:00
Volker Lendecke
00b1186725 smbd: Use smbd_do_unlocking() in reply_writeunlock()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:17 +00:00
Volker Lendecke
b3d533aa58 smbd: Add "lock_flav" to smbd_do_unlocking()
The next commits will pass all direct "do_unlock" calls through
smbd_do_unlocking(). Why? Unlocking will later on require that we take
the share mode lock for the file in question while the unlock is
happening, and this should be in one central place.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:17 +00:00
Volker Lendecke
1736f7c5c5 smbd: Use NT_STATUS_IS_OK() in reply_unlock()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:17 +00:00
Volker Lendecke
041608cb89 smbd: Avoid casts in reply_unlock()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-06-20 17:18:17 +00:00
Volker Lendecke
a5b1897397 smbd: Align integer types in reply_lockingX
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:54:01 +00:00
Volker Lendecke
d8c75ec734 smbd: Avoid casts
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:54:01 +00:00
Volker Lendecke
8cfb37010f smbd: smbd_do_locking() does not use the "type" param anymore
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:54:00 +00:00
Volker Lendecke
e335b87503 smbd: Simplify smbd_do_locking()
LOCKING_ANDX_CANCEL_LOCK only is used in SMB1. Move its handling out
of the shared smb1/smb2 code.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:54:00 +00:00
Volker Lendecke
fbe9ec6380 smbd: Slightly simplify reply_lockingX()
Make the data dependencies more obvious. "locks" and "ulocks" are used
only for short time spans. Any sane compiler will coalesce them to
just one stack variable.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:54:00 +00:00
Volker Lendecke
8e2b40baad smbd: Slightly simplify reply_lockingX()
The brltype only depends upon the central locktype, don't calculate it
every time in the loop parsing the lock requests

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:54:00 +00:00
Volker Lendecke
ebe2ceb3d9 smbd: Slightly simplify reply_lockingX()
Don't do an "else" after an early return

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:54:00 +00:00
Volker Lendecke
c9a7754c88 smbd: Avoid a "?true:false" in smbd_do_locking
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-06-18 12:53:58 +00:00
Volker Lendecke
199bb3d72a smbd: Avoid casts in smbd_do_unlocking()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-05-28 20:27:16 +00:00
Volker Lendecke
2093ebc4ab smbd: Align integer types in smbd_do_unlocking()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-05-28 20:27:16 +00:00
Volker Lendecke
115e9ea3af smbd: Simplify an if-expression in smbd_do_locking()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-05-28 20:27:15 +00:00
Volker Lendecke
1838a8df59 smbd: Avoid casts in smbd_do_locking()
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-05-28 20:27:15 +00:00
Volker Lendecke
ff2ed9070d smbd: Fix a typo
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-05-28 20:27:15 +00:00
Andreas Schneider
5a0516bee9 libcli:smb: Return NTSTATUS for smb_key_derivation()
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-05-21 00:03:21 +00:00
Volker Lendecke
076402cb59 smbd: Use a direct struct assignment in reply_setatr()
Saves .text bytes with -O3

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2019-05-16 06:46:18 +00:00
Michael Hanselmann
858e9eee55 read_smb_length: Use correct function name in debug message
Signed-off-by: Michael Hanselmann <public@hansmi.ch>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-05-10 01:15:16 +00:00
Jeremy Allison
667db8e8c7 s3: SMB1: Don't allow recvfile on stream fsp's.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13938

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri May 10 01:14:02 UTC 2019 on sn-devel-184
2019-05-10 01:14:02 +00:00
Volker Lendecke
abf5d7d7e1 smbd: Use "ISDOT" in reply_setatr
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 May  3 23:45:55 UTC 2019 on sn-devel-184
2019-05-03 23:45:55 +00:00
Volker Lendecke
d397d56717 smbd: Use smbd_check_access_rights in reply_setatr()
That was the only caller of check_access outside of trans2.c, and it
passed an explicit NULL for fsp. Use the lower-level call, so we can
make check_access() static to trans2.c

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2019-05-03 22:34:16 +00:00
Andreas Schneider
9e16adff08 s3:smbd: Start to use the smb2_signing_key structure
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-04-30 23:18:28 +00:00
Andreas Schneider
d02f790724 s3:librpc: Rename the data blobs for keys in smbXsrv.idl
The original names will be used with a new structure to cache mac and
cipher handles for gnutls later.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2019-04-30 23:18:28 +00:00
Ralph Boehme
88016bac86 Revert "smbd: add an effective {smb,smbd_smb2}_request->ev_ctx that holds the event context used for the request processing"
This reverts commit 894e5001c747ce765dad5517778dda55d7d1f4d9.

See the discussion in

https://lists.samba.org/archive/samba-technical/2018-December/131731.html

for the reasoning behind this revert.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2019-01-11 23:11:16 +01:00
Olly Betts
28aeb86a9f Fix spelling mistakes
Signed-off-by: Olly Betts <olly@survex.com>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-11-30 03:35:13 +01:00
Ralph Boehme
14b6e6842b s3:smbd: add twrp args to filename_convert()
All existing callers pass NULL, no change in behaviour.

Bug: https://bugzilla.samba.org/show_bug.cgi?id=13455

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2018-11-27 07:13:13 +01:00
Volker Lendecke
aa30fd54a2 smbd: Remove "file_sync_all" function
Replace with a call to files_forall. Why? I just came across this
function that only has one pretty obscure user. This does not justify
a full library function, IMHO at least.

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2018-09-14 07:49:13 +02:00
Volker Lendecke
94c6a7d744 smbd: Remove an unneeded #include
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2018-09-11 18:36:23 +02:00
Stefan Metzmacher
894e5001c7 smbd: add an effective {smb,smbd_smb2}_request->ev_ctx that holds the event context used for the request processing
In future this will an impersonation wrapper tevent_context based on the
user session.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2018-06-18 08:59:21 +02:00
Ralph Boehme
465b7d07e5 s3:smbd: don't allow renaming basefile if streams are open
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13451

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2018-05-30 19:10:26 +02:00
Andreas Schneider
76d5f78bb8 s3:smbd: Fix converity warning with _smb_setlen_large()
result_independent_of_operands: "(outsize - 4 & 0xffffff) >> 16 >> 8" is
0 regardless of the values of its operands. This occurs as the bitwise
first operand of "&".

So we should just pass a variable to silence the warning. However for
this, we should calculate it correctly and use size_t for it.

Found by Coverity.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-05-16 21:30:23 +02:00
Volker Lendecke
39bdd175e9 libsmb: Give namequery.c its own header
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2018-04-11 01:06:39 +02:00
Andreas Schneider
29b5de26df s3:smbd: Add FALL_THROUGH statements in reply.c
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2018-03-01 04:37:43 +01:00
Jeremy Allison
deda04389a s3: smbd: Fix SMB1 use-after-free crash bug. CVE-2017-14746
When setting up the chain, always use 'next->' variables
not the 'req->' one.

Bug discovered by 连一汉 <lianyihan@360.cn>

BUG: https://bugzilla.samba.org/show_bug.cgi?id=13041

Signed-off-by: Jeremy Allison <jra@samba.org>
2017-11-21 15:46:12 +01:00
Uri Simchoni
f53ee1284f smbd: remove calls to dptr_init_search_op()
dptr_init_search_op() invokes a VFS operation which is
a no-op in all in-tree VFS modules. Furthermore,
dptr_init_search_op() is not being called from SMB2 search
code, which hints that no out-of-tree VFS module needs it.

Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2017-11-11 04:49:27 +01:00
Jeremy Allison
b092ed3842 CVE-2017-12163: s3:smbd: Prevent client short SMB1 write from writing server memory to file.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13020

Signed-off-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(master): Wed Sep 20 17:06:23 CEST 2017 on sn-devel-144
2017-09-20 17:06:23 +02:00