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BUG: https://bugzilla.samba.org/show_bug.cgi?id=11897
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
Pointer values can be reused (yes, I hit that during my testing!).
Introduce a channel_id to identify connections and also add
some timestamps to make debugging easier.
This makes smbXsrv_session_find_channel() much more robust.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
At last, the nail in the coffin. :)
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Mon Jan 13 21:09:01 UTC 2020 on sn-devel-184
The previous commit removed all users of struct user_struct.vuid.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
session->compat->vuid is set to session->global->session_wire_id after a
successful session setup, so both variables will always carry the same value. Cf
the next commit which removes vuid from user_struct.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Dec 20 13:06:20 UTC 2019 on sn-devel-184
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Adapted to remove Samba AES
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
The original names will be used with a new structure to cache mac and
cipher handles for gnutls later.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This reverts commit 894e5001c747ce765dad5517778dda55d7d1f4d9.
See the discussion in
https://lists.samba.org/archive/samba-technical/2018-December/131731.html
for the reasoning behind this revert.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
We talloc_move() session_info to session->global->auth_session_info
which sets session_info to NULL.
This means security_session_user_level(NULL, NULL) will always return
SECURITY_ANONYMOUS so we never sign the session setup response.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=13661
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Tue Nov 13 14:22:46 CET 2018 on sn-devel-144
In future this will an impersonation wrapper tevent_context based on the
user session.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
This is not a full fix yet as we don't allow compound requests
after going async.
With SMB 3.11 requiring signed TreeConnect requests it's pointless
to try to compound requests after a SessionSetup.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12845
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Jun 17 10:55:25 CEST 2017 on sn-devel-144
We also log if a simple bind was over TLS, as this particular case matters to a lot of folks
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
This ensures that gensec, and then the NTLM auth subsystem under it, always gets the
remote and local address pointers for potential logging.
The local address allows us to know which interface an authentication is on
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-Programmed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
This allows the GENSEC service description to be set from the various callers
that go via this function.
The RPC service description is the name of the interface from the IDL.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-Programmed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
We're using the client guid as gencache db key, so this can only be used
with SMB 2_10 or higher.
The idea is that whenever we get a direct SMB2 negprot, we can then try
to see if a value is cached for the client's guid.
When a user logs off the cache entry is deleted.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Real anonymous sessions don't get it.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11847
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This means an ad_dc will now require signing by default.
This matches the default behavior of Windows dc and avoids
man in the middle attacks.
The main logic for this hides in lpcfg_server_signing_allowed().
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11687
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
This is disabled for now. It will be possible to enabled it
via a config switch once the underpinnings are complete.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Pair-Programmed-With: Guenther Deschner <gd@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Michael Adam <obnox@samba.org>
Autobuild-Date(master): Sat Jan 23 03:22:18 CET 2016 on sn-devel-144
This adds smbd_smb2_bind_auth_return(), a
variant of auth_return for session binding.
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Use a flags bitmap for storing the signing state. This is in preparation
of a subsequent patch that adds more flags to the bitmap.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
This adds a bitmap smbXsrv_encrpytion_flags with flags to the
smbXsrv_session_global.tdb and smbXsrv_tcon_global.tdb that we use
instead of bools for desired and required.
We need this info in the smbXsrv tdbs for smbstatus. Subsequent commits
for smbstatus will use it.
Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
More specifically move from smb2req->sconn to smb2req->xconn->client->sconn
to avouid using smb2req->sconn directly.
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Jan 13 14:02:21 CET 2016 on sn-devel-144
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Only put session_info to the session->global context if we use it.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Don't enforce it but only announce ENCRYPT_DATA, using the
encryption_desired flag in session setup.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11372
Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
Nonce code was terminating connections where xconn->smb2.server.cipher == 0.
If no negotiated cipher (smb2.server.cipher is zero) set nonce_high_max to zero.
smb2_get_new_nonce() returns NT_STATUS_ENCRYPTION_FAILED if it is ever called with
session->nonce_high_max == 0.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11300
Signed-off-by: Jeremy Allison <jra@samba.org>
Reuse of nonces with AES-CCM and AES-GCM leads to catastrophic failure,
so make sure the server drops the connection if that ever happens.
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11300
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Simo Sorce <simo@redhat.com>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Simo Sorce <idra@samba.org>
Autobuild-Date(master): Fri May 29 22:38:50 CEST 2015 on sn-devel-104
This protects the full connection setup including
a posteriori verification of the negotiate messages,
by signing the final session setup response with a signing key
derived from the preauth hash and the authentication session key.
Pair-Programmed-With: Michael Adam <obnox@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>
The cleanup of a failing session setup is now handled in
smbd_smb2_session_setup_wrap_*().
Bug: https://bugzilla.samba.org/show_bug.cgi?id=11182
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
