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This operates in a non-async fashion and may block
in the push and pull function.
It will be used to plug into openldap transport
layer, this is needed in order to have access
to the channel bindings. And also use the same
configuration for all our gnutls based tls code.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is based on GNUTLS_CB_TLS_SERVER_END_POINT
and is the value that is required for channel bindings
in LDAP of active directory domain controllers.
For gnutls versions before 3.7.2 we basically
copied the code from the GNUTLS_CB_TLS_SERVER_END_POINT
implementation as it only uses public gnutls functions
and it was easy to re-implement.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15621
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This will be able simplify the callers a lot...
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15621
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This is not strictly needed, but it might be useful
for load balancers.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15621
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Before the handshare or disconnect is over we need to wait until
we delivered the lowlevel messages to the transport/kernel socket.
Otherwise we'll have a problem if another tevent_context is used
after the handshake.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=15621
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
The following commits will implement the reloading of tls certificates.
Therefore we need to overwrite the interal memory.
Note we need to make sure x509_cred and dh_params from
tstream_tls_params_internal stay alive for the whole lifetime
of this session!
See 'man gnutls_credentials_set' and
'man gnutls_certificate_set_dh_params'.
Pair-Programmed-With: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Jule Anger <janger@samba.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
tls_tstream can't properly handle 'New Session Ticket' messages
sent 'after' the client sends the 'Finished' message.
This is needed because some servers (at least elasticsearch) wait till
they get 'Finished' messgage from the client before sending the
"New Ticket" message.
Without this patch what typcially happens is when the application code
sends data it then tries to read the response, but, instead of the
response to the request it actually recieves the "New Session Ticket"
instead. The "New Session Ticket" message gets processed by the upper layer
logic e.g.
tstream_tls_readv_send
->tstream_tls_readv_crypt_next
->tstream_tls_retry_read
->gnutls_record_recv
instead of the core gnutls routines.
This results in the response processing failing due to the
currently 'unexpected' New Ticket message.
In order to avoid this scenario we can ensure the client doesn't
negotiate resumption with session tickets.
Signed-off-by: Noel Power <noel.power@suse.com>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Nov 16 09:58:45 UTC 2022 on sn-devel-184
We should use the default priority list. That is a good practice,
because TLS protocol hardening and phasing out of legacy algorithms,
is easier to co-ordinate when happens at a single place. See crypto
policies of Fedora.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14408
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Jun 17 17:42:02 UTC 2020 on sn-devel-184
This is handled by the gnutls library constructor/destructor.
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
These were removed in eb15acdd35 but the
header declarations were not removed.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
The last caller was removed in 72c79e30f0
to remove the web server as all other callers use tls_tstream.
Found by callcatcher.
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
The use of SHA-1 has been on the "do not" list for a while now, so make our
self-signed certificates use SHA256 using the new
gnutls_x509_crt_sign2 provided since GNUTLS 1.2.0
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12953
Those have been deprecated with GnuTLS 1.0.20 in 2004. I think it is
safe to use them now ;)
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Configuration values such as HAVE_STDDEF_H can be set to 0
to indicate a test failure. Waf 1.5 has a few bugs that
prevent configuration tests from setting such values
consistently on failures.
Consequently, conditions such as 'if conf.env.VARNAME' must be
used to indicate that config test successes are expected.
Note that conf.env.VARNAME always returns an empty list (False value)
when no variable is defined so there are no risk of raising
AttributeError/KeyError exceptions.
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Uri Simchoni <uri@samba.org>
Autobuild-User(master): Uri Simchoni <uri@samba.org>
Autobuild-Date(master): Tue Feb 21 13:47:07 CET 2017 on sn-devel-144
The variable error_pos is used only with enabled ENABLE_GNUTLS
There are warnings if compiled witout gnutls
../source4/lib/tls/tls_tstream.c: In function ‘_tstream_tls_connect_send’:
../source4/lib/tls/tls_tstream.c:1053:14:
warning: unused variable ‘error_pos’ [-Wunused-variable]
const char *error_pos;
^~~~~~~~~
../source4/lib/tls/tls_tstream.c: In function ‘_tstream_tls_accept_send’:
../source4/lib/tls/tls_tstream.c:1333:14:
warning: unused variable ‘error_pos’ [-Wunused-variable]
const char *error_pos;
^~~~~~~~~
Signed-off-by: Lukas Slebodnik <lslebodn@redhat.com>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Wed Sep 21 00:01:09 CEST 2016 on sn-devel-144
The generated ca cert (in ca.pem) was completely useless,
it could be replaced by cert.pem.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11752
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
1024 bits is already the minimum accepted size of current TLS libraries. 2048
is recommended for servers, see https://weakdh.org/
Signed-off-by: Bjoern Jacke <bj@sernet.de>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Thu Sep 3 03:47:48 CEST 2015 on sn-devel-104
By calling gnutls_priority_set_direct() the behaviour should now match the LDAP server
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11076
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-programmed-with: Garming Sam <garming@catalyst.net.nz>
This is unused as the callers have now been migrated to tls_tstream
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11076
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-programmed-with: Garming Sam <garming@catalyst.net.nz>
This adds a new option to the smb.conf to allow administrators to disable
TLS protocols in GnuTLS without changing the code.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11076
Pair-programmed-with: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
We do not provide parameters to configure these, and OpenPGP for TLS (RFC 6091) is not used in AD
Pair-programmed-with: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
gnutls_certificate_type_set_priority() was removed in GnuTLS 3.4.0. Use
gnutls_priority_set_direct instead.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=8780
Signed-off-by: Björn Jacke <bj@sernet.de>
Reviewed-By: Jelmer Vernooij <jelmer@samba.org>
Autobuild-User(master): Björn Jacke <bj@sernet.de>
Autobuild-Date(master): Wed Apr 29 22:29:02 CEST 2015 on sn-devel-104
We no longer link against gcrypt if gnutls > 3.0.0 is found, as these
versions use libnettle.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11135
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Without GnuTLS, we don't have ldaps:// support and we are unable to
readily create RSA keys of the correct length for the BackupKey
protocol.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This reverts commit 05c1fe5055.
This was discussed here:
https://bugzilla.samba.org/show_bug.cgi?id=10392#c11
This generated warnings like:
invalid permissions on file
'/memdisk/metze/W/b138235/samba/bin/ab/promoted_dc/private/tls/key.pem': has
0600 should be 0400'.
I think we need a better way. Maybe file_check_permissions()
should get allow_perms and deny_perms. And we would call it
with allow_perms = 0400 and deny_perms = 0177. And bits in none
of them are ignored.
For now we revert this and wait for a better fix.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Mar 28 12:37:17 CET 2014 on sn-devel-104
Bug: https://bugzilla.samba.org/show_bug.cgi?id=10392
Signed-off-by: Michael Brown <michael@netdirect.ca>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
Autobuild-Date(master): Fri Jan 31 01:27:03 CET 2014 on sn-devel-104
