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This will help greatly in understanding the code changes later.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Previously, open_dir_safely() called OpenDir_internal() which
set the destructor.
Move setting the destructor into the callers of open_dir_safely()
as this will allow us to have different destructors for handle-based
calls.
The reason this is important is that I have a follow up patchset
that depends on this which makes all client directory enumerations
handle-based, calling OpenDir_fsp() only, and so the destructor there
will take care of the fsp back pointer.
Trying to keep a common destructor for handle-based and non-handle
based calls broke my brain when trying to separate the handle-based
calls from the non-handle based ones in my later patchset.
NB. The change in OpenDir_fsp() isn't a logic change as instead
of doing an early return from a function that sets the destructor,
we now fallthrough to setting the destructor then return, which
is identical.
Eventually the whole codepath using the fallback for non-handle
opens inside dptr_create() will go away and this simplifies the
code immensely. Some short term pain for long-term gain :-).
Added doxygen documentation as requested.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Preparatory work.
Separate these out internal to source3/smbd/dir.c so I can
give the internal and external uses separate destructor functions
to allow all client requested directory enumeration to move to handle
based functions.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Add a better error message (and what to do about it) if the user tries
to back up a DC that hasn't initialized its RID pool yet.
Seems to be a fairly common problem hit by users.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14048
RN: Added more informative error message if the 'samba-tool domain
backup' command fails due to no RID pool being present on the DC.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Jul 24 07:07:01 UTC 2019 on sn-devel-184
Unlock partition databases in the reverse order from which they were
acquired. This is separated from the previous commit for future
bisecting purposes, since the last commit was made to fix specific CI
failures, while this one is a speculative fix made based on code
inspection.
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
A schema reading bug was traced to a lock ordering issue in partition.c.
This patch fixes the problem by:
1. Releasing locks/transactions in the order they were acquired.
2. Always lock/start_trans on metadata.tdb first, before any other
databases, and release it last, after all others. This is so that we are
never exposed to MDB's lock semantics, which we don't support.
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Fixes:
source4/dsdb/common/util.c:3131:6: warning: Dereference of undefined pointer value <--[clang]
if (res->count < 1) {
^
/source4/dsdb/common/util.c:3207:6: warning: Dereference of undefined pointer value <--[clang]
if (res->count < 1) {
^~~~~~~~~~
source4/dsdb/common/util.c:4004:39: warning: Dereference of undefined pointer value <--[clang]
(*wkguid_dn) = talloc_steal(mem_ctx, res->msgs[0]->dn);
^
source4/dsdb/common/util.c:4191:35: warning: Dereference of undefined pointer value <--[clang]
ouv_value = ldb_msg_find_ldb_val(r->msgs[0], "replUpToDateVector");
source4/dsdb/common/util.c:5757:13: warning: 1st function call argument is an uninitialized value <--[clang]
same_nc = (ldb_dn_compare(source_nc, target_nc) == 0);
^
This fix also fixes the associated 'Access to field 'xyx' results in a
dereference of a null pointer' warnings that also will happen when this
is fixed
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Gary Lockyer <gary@samba.org>
Autobuild-Date(master): Wed Jul 24 05:49:14 UTC 2019 on sn-devel-184
Fixes:
source4/dsdb/common/util.c:2125:4: warning: Value stored to 'cps_stdin' is never read <--[clang]
cps_stdin = -1;
^ ~~
source4/dsdb/common/util.c:2132:3: warning: Value stored to 'cps_stdin' is never read <--[clang]
cps_stdin = -1;
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Fixes:
source4/dsdb/common/util.c:2000:6: warning: Access to field 'count' results in a dereference of a null pointer (loaded from variable 'res') <--[clang]
if (res->count != 1) {
^~~
source4/dsdb/common/util.c:3281:28: warning: Access to field 'msgs' results in a dereference of a null pointer (loaded from variable 'res') <--[clang]
el = ldb_msg_find_element(res->msgs[0], attr);
^~~
source4/dsdb/common/util.c:3568:6: warning: Access to field 'count' results in a dereference of a null pointer (loaded from variable 'res') <--[clang]
if (res->count != 1 || ret != LDB_SUCCESS) {
^~~
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Fixes:
source4/dsdb/common/util.c:1964:18: warning: The left operand of '&' is a garbage value <--[clang]
return (options & DS_NTDSDSA_OPT_IS_GC) != 0;
~~~~~~~ ^
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Fixes:
source4/dsdb/common/util.c:1804:8: warning: 3rd function call argument is an uninitialized value <--[clang]
ret = samdb_reference_dn(ldb, mem_ctx, server_ref_dn, "rIDSetReferences", dn);
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Fixes:
source4/auth/kerberos/kerberos_util.c:645:3: warning: Value stored to 'code' is never read <--[clang]
code = 0;
^ ~
1 warning generated.
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Fixes:
source4/auth/kerberos/kerberos_pac.c:116:2: warning: Value stored to 'ret' is never read <--[clang]
ret = smb_krb5_make_pac_checksum(mem_ctx,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 warning generated.
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Joining a Windows domain can throw an error if the HasMasterNCs
attribute occurs before msDS-HasMasterNCs. This patch changes the
attribute order so that msDS-HasMasterNCs is always first.
Previously on python2, the dictionary hash order was arbitrary but
constant. By luck, msDS-HasMasterNCs was always before HasMasterNCs, so
we never noticed any problem. With python3, the dictionary hash order
now changes everytime you run the command, so the order is
unpredictable.
To enforce a order, we can change to use an OrderedDict, which will
return the keys in the order they're added.
I've asked Microsoft to clarify the protocol requirement here WRT
attribute order. However, in the meantime we may as well fix the problem
for users.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14046
RN: When trying to join a Windows domain (with functional level 2008R2)
as an AD domain controller, the 'samba-tool domain join' command could
throw a python exception: 'RuntimeError ("DsAddEntry failed")'. When
this problem occurred, you would also see the message "DsAddEntry failed
with status WERR_ACCESS_DENIED info (8363, 'WERR_DS_NO_CROSSREF_FOR_NC')"
in the command output. This issue has now been resolved. Note that this
problem would only occur on Samba v4.10 when using the Python3 packages.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Wed Jul 24 04:18:21 UTC 2019 on sn-devel-184
When generating LDAP search traffic, a full DB scan can be very costly.
Avoiding full-scan LDAP searches means that we can run traffic_replay
against a 100K user DB and get some sane results.
Because the traffic_learner doesn't record the LDAP search filter at all,
the traffic_replay LDAP searches default to being full scans.
Doing full scans meant that the LDAP search was usually the first packet
type to exceed the max latency and fail the test. It could also skew
results for the other packet types by creating big demands on memory/CPU/
DB-lock-time.
It's hard to know for sure exactly what real-world LDAP searches will
look like, but let's assume full scan searches will be fairly rare.
In traffic-model files we've collected previously, some of the
attributes are fairly unique (e.g. pKIExtendedKeyUsage), and as there
are some LDAP queries specified in MS specs (such as MS-GPOL and
MS-WCCE), it allows us to infer what the search filter might be.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Ensure that the total_conversations and instance_id attributes are
assigned a value in the replay contexts passed to test cases.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Store the traffic runner instance id in the replay context. Will be
used in subsequent commits.
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is useful info to know, and will be used in subsequent commits.
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Instead of having a local buffer for the stat data, update the one kept
in the fsp. With this change the local stat buffer and the helper
function smbacl4_fGetFileOwner are no longer needed and can be removed.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Christof Schmitt <cs@samba.org>
Autobuild-Date(master): Tue Jul 23 19:45:05 UTC 2019 on sn-devel-184
All tutorials i could find that configure Samba with NFSv4 ACLs set this
parameter to "merge". As this seems to be the main usecase, make this
setting the default.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The default setting for nfs4:acedup is "dontcare". The only
recommendation i could find is setting this to "merge". The setting of
"ignore" is dangerous as it would silently drop ACEs. "reject" also
seems less useful as it would disallow setting of ACLs that can easily
be stored.
Report "ignore" and "reject" as deprecated. Maybe these can be removed
in the future to simplify the code.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
nfs4:mode special has been deprecated. Switch the example to "simple" to
avoid the deprecated setting in the example.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The documentation states this has been deprecated for years. Add logging
a warning when this is set. Maybe this can be removed in the future.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The function always returned true and the return code was never checked,
so simply change to void.
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
In GPFS, it is not possible to deny ACL or attribute access through a
SPECIAL_OWNER entry. The best that can be done is mapping this to a
named user entry, as this one can at least be stored in an ACL. The same
cannot be done for inheriting SPECIAL_OWNER entries, as these represent
CREATOR OWNER entries, and the limitation of not being able to deny
owner access to ACL or attributes remains.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is not functional change. It cleans up the code a bit and makes
expanding this codepath in a later patch easier.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
All supported GPFS versions now support setting WRITE and APPEND in the
ACLs independently. Remove this now unused parameter to simplify the
code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
After a chown, the cached stat data is obviously no longer valid. The
code in smb_set_nt_acl_nfs4 checked the file correctly, but did only use
a local buffer for the stat data. So later checks of the stat buffer
under the fsp->fsp_name->st would still see the old information.
Fix this by removing the local stat buffer and always update the one
under fsp->fsp_name->st.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The previous patch introduced merging of duplicates on the mapping path
from NFS4 ACL entries to DACL entries. Add a testcase to verify the
expected behavior of this codepath.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The previous patch added an additional entry for IDMAP_TYPE_BOTH. When
mapping back to a DACL, there should be no additional entry. Add a loop
that will check and remove entries that are exact duplicates.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
As this function now maps the ACE and also adds it to the NFSv4 ACE,
change the name to better describe its behavior.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
With IDMAP_TYPE_BOTH, all entries have to be mapped to group entries.
In order to have the file system reflect the owner permissions in the
POSIX modebits, create a second entry for the user. This will be mapped
to the "special owner" entry.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
The previous patch introduced a pointer to a local variable to reduce
the amount of lines changed. Remove that pointer and adjust all usage
accordingly.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Logging flags in case they do not match seems unnecessary. Other log
messages should show the flags as well.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This static function will be called earlier in later patches.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14032
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
