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time_to_asc() adds a trailing newline of its own.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
ctime() and time_to_asc() each add a trailing newline of their own.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
time_to_asc() adds a trailing newline of its own.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The two functions are identical in behaviour.
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
If configured as AD DC and aio_pthread appended into 'vfs objects'[1],
run these commands would get segfault:
1. sudo samba-tool ntacl get .
2. sudo net vfs getntacl sysvol .
gdb said it goes through aio_pthread_openat_fn() @ vfs_aio_pthread.c[2],
and the fsp->conn->sconn->client is null (0x0).
'sconn->client' memory is allocated when a new connection is accpeted:
smbd_accept_connection > smbd_process > smbXsrv_client_create
While running local commands looks like it would not go through
smbXsrv_client_create so the 'client' is null, segfault might happen.
We should not dereference 'client->server_multi_channel_enabled',
if 'client' is null.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15441
[1] smb.conf example, samba-4.18.5, ubuntu 22.04.2
[global]
dns forwarder = 127.0.0.53
netbios name = U22-JONES-88X1
realm = U22-JONES-88X1.X88X1.JONES
server role = active directory domain controller
workgroup = X88X1
idmap_ldb:use rfc2307 = yes
vfs objects = dfs_samba4 acl_xattr aio_pthread
[sysvol]
path = /var/lib/samba/sysvol
read only = No
[netlogon]
path = /var/lib/samba/sysvol/u22-jones-88x1.x88x1.jones/scripts
read only = No
[2] gdb
(gdb) run /usr/local/samba/bin/samba-tool ntacl get .
Starting program: /usr/local/Python3/bin/python3 /usr/local/samba/bin/samba-tool ntacl get .
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x00007fffd0eb809e in aio_pthread_openat_fn (handle=0x8d5cc0, dirfsp=0x8c3070, smb_fname=0x18ab4f0, fsp=0x1af3550, flags=196608, mode=0)
at ../../source3/modules/vfs_aio_pthread.c:467
warning: Source file is more recent than executable.
467 if (fsp->conn->sconn->client->server_multi_channel_enabled) {
(gdb) bt
at ../../source3/modules/vfs_aio_pthread.c:467
at ../../source3/smbd/pysmbd.c:320
---Type <return> to continue, or q <return> to quit---
(gdb) f
at ../../source3/modules/vfs_aio_pthread.c:467
467 if (fsp->conn->sconn->client->server_multi_channel_enabled) {
(gdb) p fsp->conn->sconn->client
$1 = (struct smbXsrv_client *) 0x0
(gdb)
Signed-off-by: Jones Syue <jonessyue@qnap.com>
Reviewed-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
This makes more calls to add children, but avoids the cn=system string in the
codebase which makes it easier to audit that this is always being built
correctly.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Mon Jul 31 07:20:21 UTC 2023 on atb-devel-224
In openat(), even if we fail to open the file,
propagate stat if and only if the object is a link in
a DFS share. This allows calling code to further process
the link.
Also remove knownfail
Pair-Programmed-With: Jeremy Alison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15435
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Jul 29 00:43:52 UTC 2023 on atb-devel-224
Not used yet, will be used in the next commit to avoid testing
if the connected share is a dfs one.
Pair-Programmed-With: Jeremy Alison <jra@samba.org>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15435
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
Adds a new test trying to cd into dfs path on share with
widelinks enabled, should generate an error (see BUG:)
Add a knownfail so CI continues
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15435
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Jeremy Allison <jra@samba.org>
