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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 5d7c9c12cb)
Finally acknowledge that ldb is inherently async and does not have a dual personality anymore
Rename all ldb_async_XXX functions to ldb_XXX except for ldb_async_result, it is now ldb_reply
to reflect the real function of this structure.
Simo.
(This used to be commit 25fc735404)
and the maximum amount of user data that may be fitted into that.
This is used in the new SASL code, to correctly honour SASL buffer sizes.
Andrew Bartlett
(This used to be commit cbbe99d9c1)
the Global Catalog port 'correctly' (in a very simple sense) in that
it should be no worse than what we had before.
We now combine partitions together to search over the whole tree, when
we are marked as 'global catalog'.
Andrew Bartlett
(This used to be commit 0a354a1dde)
- fix double free:
a talloc_reference(a,b) when a is a child of b
doesn't prevent talloc_free(b) from destroiying a and b.
metze
(This used to be commit 41acbc6645)
- the 0xffffffffffffffff seqnum is reserved for SMB2 Break (oplock breaks)
so don't use it in a request. we should someday try to test this...
metze
(This used to be commit 730cdc4475)
descriptor. This is something that W2k3 does _not_ pass and probably is not
expected to, it seems the don't check access at tconX time.
Thanks to metze for the hint how in the srvsvc_NetShareInfo1501 struct the
length of the sd can be encoded in idl.
As metze says, there's probably more to the share secdesc, this needs more
testing. This one is here to walk the samba3 code.
Volker
(This used to be commit 6718550822)
on ncacn_np, as abartlet suggested. Also, named pipe remains the default
transport for all kinds of servers to be contacted.
rafal
(This used to be commit 76888c74a6)
check if we can actually see the user SID on a fresh sessionsetup.
This also gives us the simple create_user, which can lead to more fun tests
:-)
Volker
(This used to be commit 92afe11569)
Found that because I want to play around with setsharesecurity, for this I
need the "whoami" call figuring out the SID of the currently connected user.
Not activating this test yet until the build farm has picked up the new samba4
revision.
Volker
(This used to be commit 5603db30e7)
that it should handle the add without a search.
Now that I'm working on better behaviour with an LDAP backend, I've
fixed the module to do just that. For an ADD, and a MODIFY with the
REPLACE flag, we do not need the search step.
Andrew Bartlett
(This used to be commit 87573e2ee4)
using different transport and possibly address type, when
the first attempt fails (only if it makes any sense, of course).
This may be especially useful when connecting DCs and PDCs in
mixed environments.
Also, add monitor messages issuing.
rafal
(This used to be commit d69b31230d)
