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Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
[MS-SPNG] requires the NTLMSSP RC4 states to be reset after
the SPNEGO exchange with mechListMic verification (new_spnego).
This provides the infrastructure for this feature.
The 'reset_full' parameter is needed to support the broken
behavior that windows only resets the RC4 states but not the
sequence numbers. Which means this functionality is completely
useless... But we want to work against all windows versions...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11644
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
gensec_sig_size() also requires GENSEC_FEATURE_DCE_STYLE if
GENSEC_FEATURE_SEAL is negotiated.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
source4/rpc_server/dcerpc_server.c:dcesrv_request() calls gensec_have_feature().
Codenomicon found a code path that allows the client to send a
request that calls into this function without ever having set
up security. So call->conn->auth_state.gensec_security exists
(gensec has been initialized when the RPC pipe is set up)
but call->conn->auth_state.gensec_security->ops has not been
initialized. We dereference the NULL pointer and crash.
An alternate way to fix this would be to create a new
public bool gensec_initialized(() function and call that
inside dcesrv_request() instead of doing a null
check on call->conn->auth_state.gensec_security,
but that's a more invasive fix we can add later.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11341
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
This is the current gensec_update() which takes an optional
tevent_context structure and allows semi-async code.
This is just a temporary solution on the way to kill
the semi-async code completely, by using gensec_update_send/recv.
By providing a gensec_update_ev(), we can remove the explicit
tevent_context from gensec_update() and fix all the sane callers.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
In future we should remove the tevent_context argument from
gensec_update() completely!
If we have sane backends we should also remove the
tevent_loop_allow_nesting() call again!
t
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We should treat most gensec related structures private.
It's a long way, but this is a start.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Preferr NT_STATUS_NO_USER_SESSION_KEY as return value of gensec_session_key().
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
We don't talloc_reference for tsocket_addresses.
metze
Autobuild-User: Stefan Metzmacher <metze@samba.org>
Autobuild-Date: Mon Oct 24 15:29:47 CEST 2011 on sn-devel-104
This avoids keeping the event context around on a the gensec_security
context structure long term.
In the Samba3 server, the event context we either supply is a NULL
pointer as no server-side modules currently use the event context.
Andrew Bartlett
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Because of the calling convention, this is the best place to assert
that we have not been subject to a downgrade attack on the negotiated
features. (In DCE/RPC, this isn't a negotiation, the client simply
specifies the level of protection that is required).
Andrew Bartlett
(some formatting fixes)
Signed-off-by: Stefan Metzmacher <metze@samba.org>
This is slightly less efficient, because we no longer keep a cache on
the gensec structures, but much clearer in terms of memory ownership.
Both gensec_session_info() and gensec_session_key() now take a mem_ctx
and put the result only on that context.
Some duplication of memory in the callers (who were rightly uncertain
about who was the rightful owner of the returned memory) has been
removed to compensate for the internal copy.
Andrew Bartlett
The startup and runtime functions that have no dependencies are moved
into the top level.
Andrew Bartlett
Signed-off-by: Andrew Tridgell <tridge@samba.org>
