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NT_STATUS_CONNECTION_DISCONNECTED and NT_STATUS_CONNECTION_RESET are
equivilent for the purposes of this test, both come from the server
shutting down the connection, the difference comes from two different
unix error numbers that can come from this.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon May 20 05:17:42 UTC 2019 on sn-devel-184
Based on earlier work by Garming Sam.
This allows the server to stop working on a reply that will never
be sent to the client as it is too large.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This should limit the amount we send to GENSEC at a
time where it may help avoid large realloc or memcpy calls.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This allows us to replace the implicit limit via data_blob_append()
removed in the previous commit.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This avoids a the implicit 256MB limit on LDAP replies (allowing this
to be increased in the future) and means we copy less memory around.
However because we can only have 1024 entries in a struct iovec (on Linux)
we will need to call tstream_writev_queue_send() multiple times.
Calling it in chunks of 1024 seems a reasonable compromise, the
gensec layer will chunk it out smaller if required.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This avoids holding the memory for the response twice,
by the time the result is queued it is only ASN.1 encoded.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This was always set to 0 so was poinless. Any LDAP scope can return 0 entries,
even a SCOPE_BASE if the filter does not match.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This made it much harder to watch under wireshark and is not required (no password setting).
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
metadata.tdb was being locked during transactions, but not during read, and
we should ensure we take all our locks in order for consistency
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13950
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This changes variables that are not the responsiblity of this function, the unlock
implied by partition_del_trans() needs to be done carefully in the right spot.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This allows metadata.tdb to be locked in the correct place in
in the lock order, as partition_reload_if_required() implicitly
calls partition_lock_read().
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This test is run agianst multiple DCs in the same domain, so there can
be a race with replication. Therefore avoid using the same name twice
by adding a random suffix.
This is an improvement to a demonstrator for this bug in TDB:
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13952
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This behaviour is Samba-specific, we have not traditionally cut of responses at 1000
or so as Windows does, and we need to change that behaviour carefully.
This triggers this bug in TDB:
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13952
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
To avoid warning above produced by using
-Wcast-function-type we;
+ ensure PyCFunctions of type METH_NOARGS defined dummy arg
+ ensure PyCFunctions of type METH_KEYWORDS use PY_DISCARD_FUNC_SIG
macro
+ ensure PyCFunctions of type METH_KEYWORDS really actually use the
problematic kargs param, if not remove it
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Where possible make PyCFunction definition signature match. Sometimes
this is not possible (e.g. when the c-function is associated with a
python method definition with 'METH_VARARGS|METH_KEYWORDS' in this
case we use the PY_DISCARD_FUNC_SIG macro.
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Fix various PyCFunction definitions to avoid
'cast between incompatible function types' warnings when compiled
with -Wcast-function-type
Signed-off-by: Noel Power <noel.power@suse.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
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.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13941
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
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>
Removing this (system) database open from the later auth stack results
in a 15-30% improvement in different types of binds and on different
hardware (presumably better with slower disk speeds).
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Unpack functions currently take an attribute list to restrict the set of
attributes to be returned in the constructed message. This
functionality is never used and complicates implementation of
forthcoming new pack format. This patch removes that functionality.
Using the unpack function then filtering the result turns
out not to be any slower.
NOTE: Configure with --abi-check-disable to build this commit. This
patch is part of a set of LDB ABI changes, and the version update is
done on the last commit.
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
This patch moves ldb_kv's filter code into the pack code to replace
'only attr list' functionality which will be removed in forthcoming
commit. Unpacking data then filtering the result is not any slower
than the removed 'only attr list' approach.
'only attr list' test repurposed to test unpack -> filter flow.
NOTE: Configure with --abi-check-disable to build this commit. This
patch is part of a set of LDB ABI changes, and the version update is
done on the last commit.
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Performance test for pack function and unpack function run with flag
LDB_UNPACK_DATA_FLAG_NO_DATA_ALLOC. Run this test before and after
forthcoming pack format changes to test throughput improvement. On my
machine, the unpack improvement is around 50%.
The test doesn't really belong in LDB torture but it's the only place
where all the required functions are available.
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Making unpack flag LDB_UNPACK_DATA_FLAG_NO_DATA_ALLOC required
behaviour, since allocating data during unpack is slow and unnecessary
in all current usages. In any future unpack usage, if editing of
returned memory is required, some function that duplicates the message
should be used, such as one of the filter_attrs functions, or msg_copy.
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13685
Signed-off-by: Isaac Boukris <iboukris@gmail.com>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Karolin Seeger <kseeger@samba.org>
Autobuild-Date(master): Tue May 14 11:45:13 UTC 2019 on sn-devel-184
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
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13942
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Ensure that the tevent_context is deleted after the connection, to
prevent a use after free.
Note: Py_DECREF calls dcerpc_interface_dealloc so the
TALLOC_FREE(ret->mem_ctx) calls in the error paths of
py_dcerpc_interface_init_helper needed removal.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13932
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
While running samba python tests with `coverage.py`, `make test` failed
to start ad_dc env since dns_update_cache stays empty.
Flush the file after write fix the issue.
Signed-off-by: Joe Guo <joeg@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
When filtering out multiple elements, we end up memmove()ing the same
elements many times over. It is simpler to not do that by keeping track
of how many elements we are keeping.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The bare memmove is not strictly safe at the end of the list.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
ldb_msg_new() is currently the same as talloc_zero(), but it might
not always be.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This should silence CID 1418508 and CID 1418512
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Autobuild-User(master): Douglas Bagnall <dbagnall@samba.org>
Autobuild-Date(master): Thu May 9 23:54:35 UTC 2019 on sn-devel-184
We sort NULL values to the end of the list. What happens to the after
that is another question.
Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
