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- we need this to later:
- to disallow a StartTLS when TLS is already in use
- to place the TLS socket between the raw and sasl socket
when we had a sasl bind before the StartTLS
- and rfc4513 says that the server may allow to remove the TLS from
the tcp connection again and reuse raw tcp
- and also a 2nd sasl bind should replace the old sasl socket
metze
(This used to be commit 10cb9c07ac60b03472f2b0b09c4581cc715002ba)
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contexts from the application layer into the socket layer.
This improves a number of correctness aspects, as we now allow LDAP
packets to cross multiple SASL packets. It should also make it much
easier to write async LDAP tests from windows clients, as they use SASL
by default. It is also vital to allowing OpenLDAP clients to use GSSAPI
against Samba4, as it negotiates a rather small SASL buffer size.
This patch mirrors the earlier work done to move TLS into the socket
layer.
Unusual in this pstch is the extra read callback argument I take. As
SASL is a layer on top of a socket, it is entirely possible for the
SASL layer to drain a socket dry, but for the caller not to have read
all the decrypted data. This would leave the system without an event
to restart the read (as the socket is dry).
As such, I re-invoke the read handler from a timed callback, which
should trigger on the next running of the event loop. I believe that
the TLS code does require a similar callback.
In trying to understand why this is required, imagine a SASL-encrypted
LDAP packet in the following formation:
+-----------------+---------------------+
| SASL Packet #1 | SASL Packet #2 |
----------------------------------------+
| LDAP Packet #1 | LDAP Packet #2 |
----------------------------------------+
In the old code, this was illegal, but it is perfectly standard
SASL-encrypted LDAP. Without the callback, we would read and process
the first LDAP packet, and the SASL code would have read the second SASL
packet (to decrypt enough data for the LDAP packet), and no data would
remain on the socket.
Without data on the socket, read events stop. That is why I add timed
events, until the SASL buffer is drained.
Another approach would be to add a hack to the event system, to have it
pretend there remained data to read off the network (but that is ugly).
In improving the code, to handle more real-world cases, I've been able
to remove almost all the special-cases in the testnonblock code. The
only special case is that we must use a deterministic partial packet
when calling send, rather than a random length. (1 + n/2). This is
needed because of the way the SASL and TLS code works, and the 'resend
on failure' requirements.
Andrew Bartlett
(This used to be commit 5d7c9c12cb2b39673172a357092b80cd814850b0)
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The function pointer was meant to be unused, this patch fixes
partition.c to use ldb_sequence_number(). (No backend provided the
pointer any more).
Set the flags onto the ldb structure, so that all backends opened by
the partitions module inherit the flags.
Set the read-ony flag when accessed as the global catalog
Modify the LDAP server to track that this query is for the global
catalog (by incoming port), and set a opqaue pointer.
Next step is to read that opaque pointer in the partitions module.
Andrew Bartlett
(This used to be commit a1161cb30e4ffa09657a89e03ca85dd6efd4feba)
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This reduces caller complexity, because the TLS code is now called
just like any other socket. (A new socket context is returned by the
tls_init_server and tls_init_client routines).
When TLS is not available, the original socket is returned.
Andrew Bartlett
(This used to be commit 09b2f30dfa7a640f5187b4933204e9680be61497)
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file dependencies
(This used to be commit 122835876748a3eaf5e8d31ad1abddab9acb8781)
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some more work on timeouts
(This used to be commit a7e2fe3cb33be2effff7eb764047567f2da3cd55)
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will not use it anyway as we plan to support
partitions in ldb directly like with rootdse
Merge ldap_simple_ldb into ldap_backend, it is
not simple anymore and makes no sense to have
it separated now that ldap partitions are gone
Initial attempt at working to some limit to avoid DOSs
for the ldap server.
Simo.
(This used to be commit 97bff3e049eba48019f2b0f3eb5a19e32fef2e23)
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There's still lot of work to do but the patch is stable
enough to be pushed into the main samba4 tree.
Simo.
(This used to be commit 77125feaff252cab44d26593093a9c211c846ce8)
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Get this out of the server credentials, and push it down to ldb via an
opaque pointer.
Andrew Bartlett
(This used to be commit 61700252e05e0be6b4ffa72ffc24a95c665597e3)
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metze
(This used to be commit a7baf165c10c00096265b790d5362905c527806a)
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The partitioning logic is still there, but we only have one
partition. If we need partitioning in the future it might be better to
remove this partitioning code and use a partitioning module instead
(This used to be commit f4685e7dc9bdc3b9e240c9f5891b9da9251f82e5)
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(This used to be commit 6ef4ba0c81002c9960dc5fe4fbfd0622957d492a)
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authenticated session down into LDB. This associates a session info
structure with the open LDB, allowing a future ldb_ntacl module to
allow/deny operations on that basis.
Along the way, I cleaned up a few things, and added new helper functions
to assist. In particular the LSA pipe uses simpler queries for some of
the setup.
In ldap_server, I have removed the 'ldasrv:hacked' module, which hasn't
been worked on (other than making it continue to compile) since January,
and I think the features of this module are being put into ldb anyway.
I have also changed the partitions in ldap_server to be initialised
after the connection, with the private pointer used to associate the ldb
with the incoming session.
Andrew Bartlett
(This used to be commit fd7203789a2c0929eecea8125b57b833a67fed71)
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code, where a stream_terminate_connection() while processing a request
can cause a later defererence of the connection structure to die.
(This used to be commit efbcb0f74176058a74d7134dae4658b891fc6f16)
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- use this for the send_queue's of the different stream_servers
to not redefine the same struct so often, and it maybe will be used
in other places too
metze
(This used to be commit b6694f067ab7aff0ee303dbfe8a6e7fad801e7e9)
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(This used to be commit 1dbb5bf2c1c6e11b3467b6eb1a2206c6299bc25b)
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- got rid of the special cases for sasl buffers
- added a tls_socket_pending() call to determine how much data is waiting on a tls connection
- removed the attempt at async handling of ldap calls. The buffers/sockets are all async, but the calls themselves
are sync.
(This used to be commit 73cb4aad229d08e17e22d5792580bd43a61b142a)
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- this involved changing the buffer handling in the ldap server quite a
lot, as it didn't handle partial packets at all
- removed completely bogus asn1_object_length() function. You can't
do that with BER/DER
(This used to be commit fed6f4cc6ceaf83aacb581499aeaf6af4ee8ddd2)
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element in a structure is not necessary any more.
(This used to be commit 912d0427f52eac811b27bf7e385b0642f7dc7f53)
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(This used to be commit 0df3fdd8178085c40f9cd776cc3e1486ca559c8e)
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servers in smbd. The old code still contained a fairly bit of legacy
from the time when smbd was only handling SMB connection. The new code
gets rid of all of the smb_server specific code in smbd/, and creates
a much simpler infrastructures for new server code.
Major changes include:
- simplified the process model code a lot.
- got rid of the top level server and service structures
completely. The top level context is now the event_context. This
got rid of service.h and server.h completely (they were the most
confusing parts of the old code)
- added service_stream.[ch] for the helper functions that are
specific to stream type services (services that handle streams, and
use a logically separate process per connection)
- got rid of the builtin idle_handler code in the service logic, as
none of the servers were using it, and it can easily be handled by
a server in future by adding its own timed_event to the event
context.
- fixed some major memory leaks in the rpc server code.
- added registration of servers, rather than hard coding our list of
possible servers. This allows for servers as modules in the future.
- temporarily disabled the winbind code until I add the helper
functions for that type of server
- added error checking on service startup. If a configured server
fails to startup then smbd doesn't startup.
- cleaned up the command line handling in smbd, removing unused options
(This used to be commit cf6a46c3cbde7b1eb1b86bd3882b953a2de3a42e)
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(there are a lot of clean ups following later, but the LDAP-BASIC test
works :-)
metze
(This used to be commit 34fe29c04a76f2f53f27adcaf9be2dce8d177516)
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- move Bind Unbind code to a seperate file
metze
(This used to be commit 3aa1a298970eab563ff6304210bee4696ecec105)
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metze
(This used to be commit 9a7505bd74a453b10aa2d40071bb80eb656bc61f)
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(This used to be commit ddd74dae8efe4e04b5a56ee9ecd9d4f87f99d104)
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Add delete functionality to ldb simple lda server backend
add some const in ldap.h
(This used to be commit 5ed9a6eb184f34eb572dd81202237042518ec7cd)
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- use the return code of the functions
and only call ldapsrv_terminate_connection from ldapsrv_recv() or ldapsrv_send()
- the rootdse is now a normal partition
metze
(This used to be commit af1501a28d700f90cd2243fbfdce6527a0f62961)
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- add infrastructure start for having multiple directory partitions (backends)
metze
(This used to be commit 5103e7fe7873c0309461ad471f0529223d7c38eb)
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struct
and related stuff...
metze
(This used to be commit dc1f8212ff717765c40ea5668e841db50e636748)
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based on volker's patch
this is compiled by default but not started by default
metze
(This used to be commit 5387bc423d4dc669cbac6626f8dd3a5498a6519d)
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