Tim Beale [Mon, 1 Jul 2019 05:06:31 +0000 (17:06 +1200)]
s4/libnet: Fix joining a Windows pre-2008R2 DC
From v4.8 onwards, Samba may not be able join a DC older than 2008R2
because the Windows DC doesn't support GET_TGT.
If the dsdb repl_md code can't resolve a link target it returns an
error, and the calling code (e.g. drs_util.py) should retry with
GET_TGT. However, GET_TGT is only supported on Windows 2008R2 and later,
so if you try to join an earlier Windows DC, the join will throw an
error that you can't work-around.
We can avoid this problem by setting the same DSDB flag that GET_TGT
sets to indicate that the link targets are as up-to-date as possible,
and so there's no point retrying. Missing targets are still logged, so
this at least allows the admin to fix up any problems after the join
completed.
I've only done this for the join case (problems during periodic
replication are probably still worth escalating to an error).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14021
RN: From Samba v4.8 onwards, joining a Windows 2003 or 2008 (non-R2) AD
DC may not have worked. When this problem occurred, the following
message would be displayed:
'Failed to commit objects: DOS code 0x000021bf'
This particular issue has now been resolved. Note that there may still
be other potential problems that occur when joining an older Windows DC.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit b3a2508f2ad79e2f1007464da7dbe918933038a0)
Autobuild-User(v4-9-test): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(v4-9-test): Mon Jul 8 16:24:32 UTC 2019 on sn-devel-144
Michael Adam [Thu, 20 Jun 2019 13:14:57 +0000 (15:14 +0200)]
vfs:glusterfs_fuse: treat ENOATTR as ENOENT
The original implementation of the virtual xattr get_real_filename
in gluster was misusing the ENOENT errno as the authoritative anwer
that the file/dir that we were asking the real filename for does not
exist. But since the getxattr call is done on the parent directory,
this is a violation of the getxattr API which uses ENOENT for the
case that the file/dir that the getxattr call is done against does
not exist.
Now after a recent regression for fuse-mount re-exports due to
gluster mapping ENOENT to ESTALE in the fuse-bridge, the gluster
implementation is changed to more correctly return ENOATTR if the
requested file does not exist.
This patch changes the glusterfs_fuse vfs module to treat ENOATTR as
ENOENT to be fully functional again with latest gluster.
- Without this patch, samba against a new gluster will work correctly,
but the get_real_filename optimization for a non-existing entry
is lost.
- With this patch, Samba will not work correctly any more against
very old gluster servers: Those (correctly) returned ENOATTR
always, which Samba originally interpreted as EOPNOTSUPP, triggering
the expensive directory scan. With this patch, ENOATTR is
interpreted as ENOENT, the authoritative answer that the requested
entry does not exist, which is wrong unless it really does not exist.
Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-by: Guenther Deschner <gd@samba.org>
Autobuild-User(master): Günther Deschner <gd@samba.org>
Autobuild-Date(master): Fri Jun 28 12:52:03 UTC 2019 on sn-devel-184
Michael Adam [Thu, 20 Jun 2019 13:14:57 +0000 (15:14 +0200)]
vfs:glusterfs: treat ENOATTR as ENOENT
The original implementation of the virtual xattr get_real_filename
in gluster was misusing the ENOENT errno as the authoritative anwer
that the file/dir that we were asking the real filename for does not
exist. But since the getxattr call is done on the parent directory,
this is a violation of the getxattr API which uses ENOENT for the
case that the file/dir that the getxattr call is done against does
not exist.
Now after a recent regression for fuse-mount re-exports due to
gluster mapping ENOENT to ESTALE in the fuse-bridge, the gluster
implementation is changed to more correctly return ENOATTR if the
requested file does not exist.
This patch changes the glusterfs vfs module to treat ENOATTR as ENOENT
to be fully functional again with latest gluster.
- Without this patch, samba against a new gluster will work correctly,
but the get_real_filename optimization for a non-existing entry
is lost.
- With this patch, Samba will not work correctly any more against
very old gluster servers: Those (correctly) returned ENOATTR
always, which Samba originally interpreted as EOPNOTSUPP, triggering
the expensive directory scan. With this patch, ENOATTR is
interpreted as ENOENT, the authoritative answer that the requested
entry does not exist, which is wrong unless it really does not exist.
Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-by: Guenther Deschner <gd@samba.org>
(cherry picked from commit 8899eb21d48b7077328ae560490f9fb9715a6b83)
Tim Beale [Mon, 24 Jun 2019 22:10:17 +0000 (10:10 +1200)]
dsdb: Handle DB corner-case where PSO container doesn't exist
A 2003 AD DB with functional level set to >= 2008 was non-functional
due to the PSO checks.
We already check the functional level is >= 2008 before checking for the
PSO container. However, users could change their functional level
without ensuring their DB conforms to the corresponding base schema.
The objectclass DSDB module should prevent the PSO container from ever
being deleted. So the only way we should be able to hit this case is
through upgrading the functional level (but not the underlying schema
objects). If so, log a low-priority message and continue without errors.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14008
RN: Previously, AD operations such as user authentication could fail
completely with the message 'Error 32 determining PSOs in system' logged
on the samba server. This problem would only affect a domain that was
created using a pre-2008 AD base schema and then had its functional
level manually raised to 2008 or greater. This issue has now been
resolved.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 295bf73e9b24b1f2b4594320a6501dc7410d4b43)
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 0b6e37c9e801435e094194dd60d9213b4868c3de)
s3:rpc_server:netlogon: don't require NEG_AUTHENTICATED_RPC in netr_ServerAuthenticate*()
The domain join with VMWare Horizon Quickprep seems to use
netr_ServerAuthenticate3() with just the NEG_STRONG_KEYS
(and in addition the NEG_SUPPORTS_AES) just to verify a password.
Note: NETLOGON_NEG_SCHANNEL is an alias to NEG_AUTHENTICATED_RPC.
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit fa5215ce5b93fb032df341e718d7011e619f0916)
s4:rpc_server:netlogon: don't require NEG_AUTHENTICATED_RPC in netr_ServerAuthenticate*()
The domain join with VMWare Horizon Quickprep seems to use
netr_ServerAuthenticate3() with just the NEG_STRONG_KEYS
(and in addition the NEG_SUPPORTS_AES) just to verify a password.
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit ead9b93ce5c2c67bbdb778232805d6d9e70112fc)
* LDAP_REFERRAL_SCHEME_OPAQUE was added
to ldb_module.h in order to fix bug #12478.
It means that Samba >= 4.9.11 is no longer able to
build with ldb 1.4.6.
Björn Baumbach [Wed, 12 Jun 2019 19:16:25 +0000 (21:16 +0200)]
python/ntacls: use correct "state directory" smb.conf option instead of "state dir"
samba-tool ntacl get testfile --xattr-backend=tdb --use-ntvfs Fixes: Unknown parameter encountered: "state dir" Signed-off-by: Björn Baumbach <bb@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
(cherry picked from commit 670a12df52df63a067b638d37bec71341bf18bdd)
docs: Document DCEPRC binding string for rpcclient
Signed-off-by: Andreas Schneider <asn@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Feb 4 02:03:56 CET 2019 on sn-devel-144
Looks like the dirty redefine trick doesn't work anymore with newer flex
versions. According to the flex manual the right thing to do is to provide own
functions for yyalloc and yyrealloc when passing the options "noyyalloc
noyyrealloc".
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue May 28 11:49:06 UTC 2019 on sn-devel-184
net.ipv4.tcp_tw_recycle has been removed from Linux 4.12 but, still,
makes sense to check its existence. Unfortunately, current check does
not test for the procfs file existence. This commit fixes the issue.
Signed-off-by: Rafael David Tinoco <rafaeldtinoco@ubuntu.com> Reviewed-by: Martin Schwenke <martin@meltin.net> Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Tue Jun 4 23:31:24 UTC 2019 on sn-devel-184
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit dbf3e81f7f0b28c69dca004b32ea3a7344b0cad3)
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Thu May 30 22:12:50 UTC 2019 on sn-devel-184
Ralph Boehme [Thu, 23 May 2019 14:42:52 +0000 (16:42 +0200)]
vfs_fruit: convert ad_open_rsrc() to open a proper fsp with SMB_VFS_CREATE_FILE()
A first step in converting all raw syscalls to use proper VFS functions. All
existing users of the raw system filedescriptor continue to use the fd from
fsp->fh for now.
Ralph Boehme [Wed, 22 May 2019 19:15:22 +0000 (21:15 +0200)]
vfs_fruit: remove xattr code from the AppleDouble subsystem
The subsystem consumers have been reworked in the previous commits, so this is
not used anymore. ad_init() doesn't need a handle argument anymore due to this,
remove it as well.
Ralph Boehme [Fri, 17 May 2019 12:31:15 +0000 (14:31 +0200)]
vfs_fruit: remove now unused AppleDouble code for resource fork in xattr
This was only needed to get the resourcefork size via the ad_* AppleDouble
function. This is now done with a fstat on the low level xattr fd (remember,
this is Solaris only code...), so we can remove the xattr special casing from
the AppleDouble functions.
Ralph Boehme [Wed, 22 May 2019 15:02:20 +0000 (17:02 +0200)]
vfs_fruit: use correct case FRUIT_RSRC_STREAM in readdir_attr_rfork_size()
This is a genuine bug, but luckily this would only impact configs which nobody
uses:
fruit:metadata = netatalk
fruit:resource = stream
With the above configuration the switch in readdir_attr_rfork_size() would hit
the default case and so always report resource forks as 0 bytes in size.
All deployment that I've seen that use fruit:resource=stream also use
fruit:metadata=stream, so the switch takes FRUIT_META_STREAM case which runs the
correct code readdir_attr_rfork_size_stream().
Ralph Boehme [Tue, 21 May 2019 09:42:47 +0000 (11:42 +0200)]
vfs_fruit: ignore AppleDouble files in fruit_unlink()
Otherwise, if SMB_VFS_UNLINK() is called for an AppleDouble path "._file", we
try to delete "._._file" which doesn't make sense. AppleDouble files don't have
AppleDouble themselves.
Ralph Boehme [Mon, 13 May 2019 18:16:47 +0000 (20:16 +0200)]
s3:auth: explicitly add BUILTIN\Guests to the guest token
This changes ensures that smbd always adds BUILTIN\Guests to the guest token
which is required for guest authentication.
Currently the guest token depends on the on-disk configured group mappings. If
there's an existing group mapping for BUILTIN\Guests, but LOCALSAM\Guest is not
a member, the final guest token won't contain BUILTIN\Guests.
For SMB2 the flag SMB2_SESSION_FLAG_IS_GUEST will not be set in the final SMB2
SESSION_SETUP response, because smbd sets it based on the token containing the
BUILTIN\Guests SID S-1-5-32-546.
At the same time, the packet is not signed which causes Windows clients and
smbclient to reject the unsigned SMB2 SESSION_SETUP response.
Pair-programmed-with: Stefan Metzmacher <metze@samba.org> Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Jun 5 16:55:26 UTC 2019 on sn-devel-184
Ralph Boehme [Thu, 16 May 2019 10:47:34 +0000 (12:47 +0200)]
tests: add a test for guest authentication
This verifies that smbd always adds BUILTIN\Guests to the guest token which is
required for guest authentication.
Currently the guest token depends on the on-disk configured group mappings. If
there's an existing group mapping for BUILTIN\Guests, but LOCALSAM\Guest is not
a member, the final guest token won't contain BUILTIN\Guests.
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 0e88f98855e24cfddb55bef65c5910b8e662c630)
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(backported from commit ac2167eb2349dc1c453e14a65692f16c8ba6532e)
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit f4e340a48b6f059a1daa66deb9c26da9e8fcd5e7)
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 8096cc7eb2b36b074ff17a52dc3540be4ecff6bb)
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 706aba5bf62e674ae12786f6ab275752b8714464)
Gary Lockyer [Tue, 21 May 2019 01:17:22 +0000 (13:17 +1200)]
ldap server: generate correct referral schemes
Ensure that the referrals returned in a search request use the same
scheme as the request, i.e. referrals recieved via ldap are prefixed
with "ldap://" and those over ldaps are prefixed with "ldaps://"
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri May 24 05:12:14 UTC 2019 on sn-devel-184
Gary Lockyer [Tue, 21 May 2019 01:14:08 +0000 (13:14 +1200)]
ldap tests: test scheme for referrals
Ensure that the referrals returned in a search request use the same
scheme as the request, i.e. referrals recieved via ldap are prefixed
with "ldap://" and those over ldaps are prefixed with "ldaps://"
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 6ccf74cf878c295903673e3a1d1ed924a5e87547)
Gary Lockyer [Tue, 14 May 2019 01:10:22 +0000 (13:10 +1200)]
s4 dsdb: fix use after free in samldb_rename_search_base_callback
Fix use after free detected by AddressSanitizer
AddressSanitizer: heap-use-after-free on address 0x60f0002b2738
at pc 0x7f89b1a213b5 bp 0x7ffce9528810 sp 0x7ffce9528800
READ of size 8 at 0x60f0002b2738 thread T0
#0 0x7f89b1a213b4 in samldb_rename_search_base_callback
../../source4/dsdb/samdb/ldb_modules/samldb.c:4203
#1 0x7f89d3a0db4a in ldb_module_send_entry
../../lib/ldb/common/ldb_modules.c:793
#2 0x7f89b6f27356 in es_callback
../../source4/dsdb/samdb/ldb_modules/encrypted_secrets.c:1418
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit b0cc6d217485c317b2138347216fac5d74684328)
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Garming Sam <garming@catalyst.net.nz>
(cherry picked from commit 661dc4574110b0f13c127c8aa6ed0c385292b77c)
Ralph Boehme [Tue, 21 May 2019 14:00:53 +0000 (16:00 +0200)]
vfs_fruit: change trigger points of AppleDouble conversion
This moves the trigger points where AppleDouble file conversion is run by
ad_convert() from deep down the callchain in ad_read_rsrc_adouble() to high
level VFS entry points.
Currently ad_convert() will be triggered as part of open_file_ntcreate(...,
"file:AFP_AfpResource", ...): after SMB_VFS_OPEN() has been called with O_CREAT,
what created the file, we call SMB_VFS_FSTAT() on the just created
filehandle. This ends up in ad_convert(), finds the resource fork empty and thus
deletes the file.
This commit moves calling of the conversion funtion to the high level VFS entry
points where the converted metadata is needed:
o for directory enumerations SMB_VFS_READDIR_ATTR() is called to fill in the
repurposed fields in the directory entry metadata
o obviously for SMB_VFS_CREATE_FILE() on an macOS stream
Ralph Boehme [Tue, 21 May 2019 12:05:04 +0000 (14:05 +0200)]
selftest: run vfs.fruit test against a share that deletes empty resource forks
This reveals a bug in the AppleDouble conversion code: the conversion code that
unlinks an empty resource fork AppleDouble sidecar file ("._file") gets
triggered as part of open_file_ntcreate(..., "file:AFP_AfpResource", ...):
after SMB_VFS_OPEN() has been called with O_CREAT, what created the file, we
call SMB_VFS_FSTAT() on the just created filehandle. This ends up in
ad_convert(), finds the resource fork empty and thus deletes the file.
Ralph Boehme [Tue, 21 May 2019 16:39:52 +0000 (18:39 +0200)]
s4:torture/vfs/fruit: ensure test_adouble_conversion_wo_xattr() uses a non-emtpy resourcefork
This ensures the resource fork is not deleted as part of the AppleDouble file
conversion for the option fruit:wipe_intentionally_left_blank_rfork=yes.
This is currently not a problem in selftest, as we don't enable the option, but
a subsequent commit will run all vfs.fruit tests against a share with this
option enabled.
Ralph Boehme [Tue, 21 May 2019 16:39:52 +0000 (18:39 +0200)]
s4:torture/vfs/fruit: ensure test_adouble_conversion() uses a non-emtpy resourcefork
This ensures the resource fork is not deleted as part of the AppleDouble file
conversion for the option fruit:wipe_intentionally_left_blank_rfork=yes.
This is currently not a problem in selftest, as we don't enable the option, but
a subsequent commit will run all vfs.fruit tests against a share with this
option enabled.
Signed-off-by: Ralph Boehme <slow@samba.org> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz> Reviewed-by: Karolin Seeger <kseeger@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Mon May 27 14:29:36 UTC 2019 on sn-devel-184
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 24 20:12:02 UTC 2019 on sn-devel-184
Jeremy Allison [Fri, 17 May 2019 04:45:21 +0000 (21:45 -0700)]
lib: popen: Prepare to remove sys_popen().
Add sys_popenv(char * const argl[]) that uses a NULL
terminated vector array of args. Change sys_popen() to
split up its command string and call sys_popenv().
Once all callers are converted to sys_popenv() we
can remove sys_popen().
s3:util: Move static file_pload() function to lib/util
file_pload() is static private function in Samba3 library, however it
does not have any special dependencies and might be widely used as
common function, so moving it into common samba-util library.
Extra fix needed to enable easy back-port of code for:
trigger the immediate leading to do_break_to_none. This goes through
because fsp->oplock_type is not initialized yet, thus 0. Also,
file_has_read_oplocks is still valid, because the smbd that has died
could not clean up the brlock.tdb entry.
Later in the code the exclusive oplock is granted, which is then found
by do_break_to_none, making it panic.
This patch just runs the direct FTRUNCATE instead of vfs_set_filelen.
This means the contend_level2_oplock code is skipped.
The relevant break (LEVEL_II to NONE) is now done in delay_for_oplock()
with the nice effect of removing a comment that was very confusing to
me.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13957 Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Wed May 22 20:09:29 UTC 2019 on sn-devel-184
Volker Lendecke [Tue, 21 May 2019 12:52:22 +0000 (14:52 +0200)]
smbd: Enable "smbd:suicide mode" for smb2
The next commit needs an smbd to just exit and leave data behind in the
locking.tdb file. Don't make it harder to eventually phase out SMB1: Do
the test in SMB2.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13957 Signed-off-by: Volker Lendecke <vl@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
Jeremy Allison [Thu, 23 May 2019 20:33:21 +0000 (13:33 -0700)]
s3: winbind: Fix crash when invoking winbind idmap scripts.
Previously the private context was caching a pointer to
a string returned from lp_XXX(). This string can change
on config file reload. Ensure the string is talloc_strup'ed
onto the owning context instead.
Reported by Heinrich Mislik <Heinrich.Mislik@univie.ac.at>
s3:loadparm: Ensure to truncate FS Volume Label at multibyte boundary
For FS_VOLUME_INFO/FS_INFO operation, a maximum of 32 characters are
sent back. However, since Samba chops off any share name with >32
bytes at 32, it is possible that a multi-byte share name can get chopped
off between a full character. This causes the string decoding for unicode
failure which sends back NT_STATUS_ILLEGAL_CHARACTER (EILSEQ) to the client
applications.
On Windows, Notepad doesn't like it, and refuses to open a file in this
case and fails with the following error:
Invalid character. For multibyte character sets, only the leading byte is
included without the trailing byte. For Unicode character sets, include
the characters 0xFFFF and 0xFFFE.
Proposed fix:
- Find the last starting point of a multibyte codepoint if the character
at 32nd byte is a subsequent byte of a MB codepoint.
Gary Lockyer [Tue, 14 May 2019 03:53:22 +0000 (15:53 +1200)]
s4 dsdb/repl_meta_data: fix use after free in dsdb_audit_add_ldb_value
Fix use after free detected by AddressSanitizer
AddressSanitizer: heap-use-after-free on address 0x61400026a4a0
at pc 0x7fd555c52f12 bp 0x7ffed7231180 sp 0x7ffed7231170
READ of size 1 at 0x61400026a4a0 thread T0
#0 0x7fd555c52f11 in ldb_should_b64_encode
../../lib/ldb/common/ldb_ldif.c:197
#1 0x7fd539dc9417 in dsdb_audit_add_ldb_value
../../source4/dsdb/samdb/ldb_modules/audit_util.c:491
#2 0x7fd539dc9417 in dsdb_audit_attributes_json
../../source4/dsdb/samdb/ldb_modules/audit_util.c:651
#3 0x7fd539dc6a7e in operation_json
../../source4/dsdb/samdb/ldb_modules/audit_log.c:305
The problem is that at the successful end of these functions
el->values is overwritten with new_values. However get_parsed_dns()
points p->v at the supplied el and it effectively gets used
as a working area by replmd_build_la_val(). So we must duplicate it
because our caller only called ldb_msg_copy_shallow().
The reason this matters is that the audit_log module is
above repl_meta_data in the stack, and tries to log the
ldb_message it saw after the reply (to include the error code).
If that ldb_message is changed it is not only misleading,
it can point to memory that has since gone away.
In this case the memory for the full extended DN in the
member attribute ended up on 'ac', a context lost by
the time repl_meta_data has finished processing.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz> Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed May 15 05:35:47 UTC 2019 on sn-devel-184
Andrew Bartlett [Wed, 15 May 2019 02:47:53 +0000 (14:47 +1200)]
s4 dsdb/repl_meta_data: allocate new extended DNs during ADD on a better context
Lower down in this function new_values is assigned over el->values and is
filled in with the values of all the parsed DNs. Therefore it is the natural
talloc parent.
This will allow el->values to be allocated on tmp_ctx in the next commit for
a working area during the function call.
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
(cherry picked from commit 4aa9924310287ff3b36618496fa6c707c615ad4c)
python/ntacls: we only need security.SEC_STD_READ_CONTROL in order to get the ACL
We should avoid security.SEC_FLAG_MAXIMUM_ALLOWED otherwise
we may get NT_STATUS_SHARING_VIOLATION when we run
'samba-tool domain backup online' against a Windows DC.
Windows DCs have hidden folders for the NtFrs or Dfsr services,
which are locked by the running service.
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
(cherry picked from commit 15032ec6df1abbb53f1b1d5377aab369f83ae707)
Currently schema info's revision field isn't incremented if relax
control is present. This is so that no increment is done during
provision, but we need the relax control in other situations where
the increment is desired, so we should use the provision control instead
to disable schema info update.
Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Garming Sam <garming@catalyst.net.nz>
(cherry picked from commit 7652439fa1aab92945f5540a43fc49568d446917)
projects / thirdparty / samba.git / log
