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mirror of https://github.com/samba-team/samba.git synced 2025-01-22 22:04:08 +03:00

18 Commits

Author SHA1 Message Date
Ralph Boehme
1b53fd1499 smbd: add contend_dirleases()
Checks for Directory Lease breaks on the parent directory of smb_fname. Gets a
sharemode lock on the locking.tdb record of the directory, hence it mustn't be
called if the caller still has another sharmode lock.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Ralph Boehme
d5dd40ef53 smbd: add fsp_get_smb2_lease()
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Ralph Boehme
2b745ad9f6 smbd: recursive delay_for_handle_lease_break_send()
Check for open files recursively when renaming a directory and wait for handle
lease breaks.

As delay_for_handle_lease_break_send() does the same check as
have_file_open_below(), remove have_file_open_below() from can_rename() so it is
not called twice for SMB2 renames, and add calls to have_file_open_below() to the
SMB1 entry rename entry points.

This is a bit ugly, but I don't see any other good way of doing this.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Ralph Boehme
6703538126 s3/locking: pass file_id instead of lck to share_mode_watch_send()
In the future not all callers will have a share_mode_lock around.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Ralph Boehme
aee574aef9 smbd: print lease key using hex format in get_lease_type()
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Ralph Boehme
f9c9593225 smbd: rework async rename check for handle lease breaks
Add a version of delay_rename_for_lease_break() that is usable in other places
where we have to check for handle lease breaks. No change in behaviour.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15608

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2024-11-05 14:39:30 +00:00
Volker Lendecke
5ef6a8a01f smbd: Use struct oplock_break_message for MSG_SMB_KERNEL_BREAK
Signed-off-by: Volker Lendecke <vl@samba.org>
2024-04-30 22:44:32 +00:00
Volker Lendecke
7d860a73ca smbd: Remove message_to_share_mode_entry and vice versa
Used only for closing files from rpc srvsvc these days

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2024-04-30 22:44:32 +00:00
Volker Lendecke
8f1cc217a8 smbd: Simplify sending oplock_break_message
This is fixed length of 33 bytes, no need to talloc

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2024-04-30 22:44:32 +00:00
Volker Lendecke
80cd127b20 smbd: Remove sconn->using_smb2
We have the same information available via conn_using_smb2()

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Martin Schwenke <mschwenke@ddn.com>
2024-04-17 07:57:36 +00:00
Volker Lendecke
f955d9aa49 smbd: Fix Coverity ID 1499372 Uninitialized scalar variable
This is real.

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): Tue Nov 21 18:33:51 UTC 2023 on atb-devel-224
2023-11-21 18:33:51 +00:00
Stefan Metzmacher
387f126d07 s3:smbd: remove static from release_file_oplock()
It will be used in close.c in the next commit.

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>
2022-09-20 00:34:35 +00:00
Stefan Metzmacher
a4dd4d5f0f s3:smbd: maintain all SHARE_MODE_LEASE_* flags not only _READ
Remember SMB2 Create is the only was to upgrade a lease.

The strategy is that opening of a file will always result
in storing the total lease bits.

But we're lazy clearing the flags on close.

We'll only clear them by traversing all entries when
we break a NONE or when opening a new handle.

We don't do any decision on SHARE_MODE_LEASE_{HANDLE,WRITE},
maybe we'll do in future, but at least it should be much more
sane for debugging now!

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>
2022-09-20 00:34:35 +00:00
Stefan Metzmacher
aa7df0fb9f s3:smbd: add smb_vfs_assert_allowed() to kernel oplock code
Kernel oplocks can block in the same way vfs operations can do.

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>
2022-09-20 00:34:35 +00:00
Stefan Metzmacher
76da56aa65 s3:smbd: inline fsp_lease_type_is_exclusive() logic into contend_level2_oplocks_begin_default
SMB2_LEASE_WRITE is the indication for an exclusive lease,
the fact that a SMB2_LEASE_WRITE can't exists without
SMB2_LEASE_READ is not important here.

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>
2022-08-19 18:41:34 +00:00
Stefan Metzmacher
96e2a82760 s3:smbd: only clear LEASE_READ if there's no read lease is left
If contend_level2_oplocks_begin_default() skips break it's
own lease, we should not clear SHARE_MODE_LEASE_READ
in share_mode_data->flags.

Otherwise that lease won't see any lease break notifications
for writes from other clients (file handles not using the same lease
key).

So we need to count the number existing read leases (including
the one with the same lease key) in order to know it's
safe to clear SMB2_LEASE_READ/SHARE_MODE_LEASE_READ.

Otherwise the next run (likely from another client)
will get the wrong result from file_has_read_lease().

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15148

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu Aug 18 19:41:33 UTC 2022 on sn-devel-184
2022-08-18 19:41:33 +00:00
Stefan Metzmacher
7592aad4d7 s3:smbd: share_mode_flags_set() takes SMB2_LEASE_* values
We currently only ever pass SMB2_LEASE_READ and both
have the same value of 0x1, so for now it's only cosmetic,
but that will change soon.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15148

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
2022-08-18 18:45:34 +00:00
David Mulder
4f0a8e5b21 smbd: Move oplock.c -> smb2_oplock.c
Signed-off-by: David Mulder <dmulder@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
2022-04-07 17:37:29 +00:00