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Commit Graph

208 Commits

Author SHA1 Message Date
Jeremy Allison
53f21ffb4a libcli: auth: Ensure all asn1_XX returns are checked.
Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
2014-09-26 00:51:16 +02:00
Andrew Bartlett
36ecbf34ba libcli/auth: Ensure that the dns_names in/out parameter is preserved
This is in dcerpc_netr_DsrUpdateReadOnlyServerDnsRecords, which has
status variables filled in by the server and placed in this in/out
array.

This showed up as a segfault in winbindd during RODC DNS update.

Andrew Bartlett

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Pair-programmed-with: Garming Sam <garming@catalyst.net.nz>
2014-08-01 09:48:35 +02:00
Volker Lendecke
0a7290ca7d libcli: Remove an unused variable
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jul  1 00:43:18 CEST 2014 on sn-devel-104
2014-07-01 00:43:18 +02:00
Andrew Bartlett
223fbdaf38 s3-winbindd: Listen on IRPC and do forwarded DNS updates on an RODC
Change-Id: Ib87933c318f510d95f7008e122216d73803ede68
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2014-06-11 10:18:26 +02:00
Jelmer Vernooij
e0cddcd5c4 Typo: s/preceeded/preceded/
Caught by lintian, the Debian package linter :)

Change-Id: Ia7162ea8c2b1845155345526b66d71ae64f15227
Reviewed-on: https://gerrit.samba.org/216
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Jelmer Vernooij <jelmer@samba.org>
Autobuild-Date(master): Mon Apr 14 03:51:15 CEST 2014 on sn-devel-104
2014-04-14 03:51:15 +02:00
Stefan Metzmacher
cd648ec00f libcli/auth: s/encrypt/do_encrypt
This avoids compiler warnings.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-04-02 09:03:42 +02:00
Ira Cooper
8cd8aa6686 libcli: Overflow array index read possible, in auth code.
Changed the if condtion to detect when we'd improperly overflow.

Coverity-Id: 1167990
Signed-off-by: Ira Cooper <ira@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Ira Cooper <ira@samba.org>
Autobuild-Date(master): Mon Feb 24 11:56:38 CET 2014 on sn-devel-104
2014-02-24 11:56:37 +01:00
Ira Cooper
14063719e0 Revert "libcli: Overflow array index read possible, in auth code."
This reverts commit 538cbfe0e9.

Signed-off-by: Ira Cooper <ira@samba.org>
2014-02-24 14:16:00 +05:30
Ira Cooper
538cbfe0e9 libcli: Overflow array index read possible, in auth code.
The values have to be signed here to allow for the values to go negative,
to prevent the overflow.

Coverity-Id: 1167990
Signed-off-by: Ira Cooper <ira@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Ira Cooper <ira@samba.org>
Autobuild-Date(master): Mon Feb 24 07:23:03 CET 2014 on sn-devel-104
2014-02-24 07:23:03 +01:00
Michael Adam
85235d03c1 libcli: use DBWRAP_LOCK_ORDER_NONE when opening schannel_store.tdb
Make lack of lock order checking more visible.

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2014-02-07 16:06:07 +01:00
Michael Adam
7e766a0a8a dbwrap: add dbwrap_flags argument to dbwrap_local_open()
To be consistent with db_open() and prepare for future
possible extensions.

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2014-02-07 16:06:07 +01:00
Stefan Metzmacher
b8fdeb8ca7 libcli/auth: reject computer_name longer than 15 chars
This matches Windows, it seems they use a fixed size field to store
netlogon_creds_CredentialState.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-22 17:12:14 +01:00
Stefan Metzmacher
387ed2e15d libcli/auth: don't alter the computer_name in cluster mode.
This breaks NTLMv2 authentication.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-22 17:12:05 +01:00
Stefan Metzmacher
ece3ba10a1 libcli/auth: add netlogon_creds_cli_set_global_db()
This can be used to inject a db_context from dbwrap_ctdb.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-22 17:11:19 +01:00
Stefan Metzmacher
0e62f32795 libcli/auth: fix usage of an uninitialized variable in netlogon_creds_cli_check_caps()
If status is RPC_PROCNUM_OUT_OF_RANGE, result might be uninitialized.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
2014-01-08 14:34:13 +01:00
Stefan Metzmacher
3d45d4dc3c libcli/auth: remove unused netlogon_creds_cli_context_copy()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-07 12:47:16 +01:00
Stefan Metzmacher
fa3af7c2e8 libcli/auth: make use of real options in netlogon_creds_cli_context_global()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-07 12:47:05 +01:00
Stefan Metzmacher
dc96b1ddcc libcli/auth: use unique key_name values in netlogon_creds_cli_context_common()
Until all callers are fixed to pass the same 'server_computer'
value, we try to calculate a server_netbios_name and use this
as unique identifier for a specific domain controller.

Otherwise winbind would use 'hostname.example.com'
while 'net rpc testjoin' would use 'HOSTNAME',
which leads to 2 records in netlogon_creds_cli.tdb
for the same domain controller.

Once all callers are fixed we can think about reverting this
commit.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-07 12:47:04 +01:00
Stefan Metzmacher
6e6d9f9f12 libcli/auth: add netlogon_creds_cli* infrastructure
This provides an abstraction to hide netlogon_creds_CredentialState,
which is stored in a node local tdb.

Where the global state (netlogon_creds_CredentialState) between client and
server was only kept in memory (on the client side), we now use
the abstracted netlogon_creds_cli_context.

We now use a node specific computer name in order to establish
individual netlogon sessions per node.

If the caller wants to use some netlogon calls with credential chain
(struct netr_Authenticator), netlogon_creds_cli_lock*() is used
to get the current netlogon_creds_CredentialState in a g_lock'ed
fashion, a talloc_free() will release the lock.

The locking is needed as there might be more than one process
(multiple winbindd child, cmdline tools) which want to talk
to a specific domain controller. The usage of netlogon_creds_CredentialState
needs to be serialized as it uses sequence numbers.

LogonSamLogonEx doesn't use the credential chain, but for some operations
it needs the global session in order to de/encrypt individual fields.
It uses the lockless netlogon_creds_cli_get() and netlogon_creds_cli_validate()
functions, which just make sure the session hasn't changed between
get and validate.

This is prepares the proper fix for a large number of bugs:
https://bugzilla.samba.org/show_bug.cgi?id=6563
https://bugzilla.samba.org/show_bug.cgi?id=7944
https://bugzilla.samba.org/show_bug.cgi?id=7945
https://bugzilla.samba.org/show_bug.cgi?id=7568
https://bugzilla.samba.org/show_bug.cgi?id=8599

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-07 12:47:03 +01:00
Stefan Metzmacher
616cd00995 auth/gensec: move libcli/auth/schannel_sign.c into schannel.c
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2014-01-07 00:27:11 +01:00
Stefan Metzmacher
e6afeae695 libcli/auth: try to use the current timestamp creds->sequence
If the last usage of netlogon_creds_client_authenticator()
is in the past try to use the current timestamp and increment
more than just 2.

If we use netlogon_creds_client_authenticator() a lot within a
second, we increment keep incrementing by 2.

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): Tue Dec 24 13:18:18 CET 2013 on sn-devel-104
2013-12-24 13:18:18 +01:00
Stefan Metzmacher
636daac3b7 libcli/auth: remove bogus comment regarding replay attacks
creds->sequence (timestamp) is the value that is used to increment the internal
state, it's not a real sequence number. The sequence comes
from adding all timestamps of the whole session.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-12-24 09:10:06 +01:00
Stefan Metzmacher
202bcf9096 libcli/auth: set the return_authenticator->timestamp = 0
This is what windows returns, the value is ignored by the client anyway.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-12-24 09:10:06 +01:00
Stefan Metzmacher
9177a0d1c1 libcli/auth: add more const to spnego_negTokenInit->mechTypes
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): Sat Aug 10 11:11:54 CEST 2013 on sn-devel-104
2013-08-10 11:11:53 +02:00
Stefan Metzmacher
f1e60142e1 libcli/auth: avoid possible mem leak in read_negTokenInit()
Also add error checks.

Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:19:04 +02:00
Stefan Metzmacher
57bcbb9c50 libcli/auth/schannel: remove unused schannel_position
Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:19:02 +02:00
Stefan Metzmacher
4c978b68d9 libcli/auth/schannel: make struct schannel_state private
Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:19:02 +02:00
Stefan Metzmacher
33215398f3 libcli/auth: add netsec_create_state()
Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:18:56 +02:00
Stefan Metzmacher
9f2e81ae02 libcli/auth: maintain the sequence number for the NETLOGON SSP as 64bit
See [MS-NPRC] 3.3.4.2 The Netlogon Signature Token.

Signed-off-by: Stefan Metzmacher <metze@samba.org>

Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2013-08-10 09:18:56 +02:00
Stefan Metzmacher
2ea749a1a4 libcli/auth: add netlogon_creds_shallow_copy_logon()
This can be used before netlogon_creds_encrypt_samlogon_logon()
in order to keep the provided buffers unchanged.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2013-08-05 10:30:01 +02:00
Stefan Metzmacher
c7319fce60 libcli/auth: add netlogon_creds_[de|en]crypt_samlogon_logon()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2013-08-05 10:30:01 +02:00
Stefan Metzmacher
291f6a1e03 libcli/auth: fix shadowed declaration in netlogon_creds_crypt_samlogon_validation()
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2013-08-05 10:30:01 +02:00
Stefan Metzmacher
39fedd2718 libcli/auth: make netlogon_creds_crypt_samlogon_validation more robust
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2013-08-05 10:30:01 +02:00
Günther Deschner
a9d5b2fdf0 libcli/auth: also set secure channel type in netlogon_creds_client_init().
Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
2013-08-05 10:30:00 +02:00
Volker Lendecke
afcc7beea5 schannel: Fix an unused variable
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
2013-07-31 14:37:41 -07:00
Andrew Bartlett
fc13489c91 build: Build with system md5.h on OpenIndiana
This changes (again...) our system md5 detection to cope with how
OpenIndiana does md5.  I'm becoming increasingly convinced this isn't
worth our while (we should have just done samba_md5...), but for now
this change seems to work on FreeBSD, OpenIndiana and Linux with
libbsd.

This needs us to rename struct MD5Context -> MD5_CTX, but we provide a
config.h define to rename the type bad if MD5_CTX does not exist (it does
however exist in the md5.h from libbsd).

Andrew Bartlett

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Jun 19 21:32:36 CEST 2013 on sn-devel-104
2013-06-19 21:32:36 +02:00
Rusty Russell
b4b56ee6ad schannel_store.tdb: make it schannel_store.ntdb if 'use ntdb'.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Jeremy Allison <jra@samba.org>
2013-04-12 14:59:34 -07:00
Rusty Russell
00c9e83d92 libcli/auth: convert to dbwrap.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Jeremy Allison <jra@samba.org>
2013-04-12 14:59:31 -07:00
Stefan Metzmacher
adbe6cba00 libcli/auth: avoid using transactions a chainlock is enough
We're just writting a single record into a CLEAR_IF_FIRST|TDB_NOSYNC
tdb.

We just need to make sure we lock the record between reading and writting.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Thu Mar 28 14:52:14 CET 2013 on sn-devel-104
2013-03-28 14:52:14 +01:00
Andrew Bartlett
988350ccef libcli/auth: fix void function cannot return value error
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Tue Jan 22 22:32:31 CET 2013 on sn-devel-104
2013-01-22 22:32:31 +01:00
Andreas Schneider
9981b857a5 libcli: Check schannel state return value of tdb_transaction_commit().
Found by Coverity.

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Günther Deschner <gd@samba.org>
2012-12-21 13:56:00 +01:00
Günther Deschner
301f69b0ca libcli/auth: add netlogon_creds_encrypt_samlogon_validation().
Guenther

Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2012-12-15 21:50:36 +01:00
Günther Deschner
563cc67ac6 libcli/auth: rename netlogon_creds_decrypt_samlogon() to netlogon_creds_decrypt_samlogon_validation().
Guenther

Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2012-12-15 21:50:36 +01:00
Günther Deschner
f6cb8049b2 libcli/auth: support AES decryption in netlogon_creds_decrypt_samlogon().
Guenther

Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2012-12-09 19:39:08 +01:00
Günther Deschner
be296a21fc libcli/auth: remove trailing whitespace.
Guenther

Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2012-12-09 19:39:08 +01:00
Günther Deschner
429600c5f3 libcli/auth: add netlogon_creds_aes_{en|de}crypt routines.
Guenther

Signed-off-by: Günther Deschner <gd@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2012-12-09 19:39:07 +01:00
Jeremy Allison
aca444cbfc Remove useless bool "upper_case_domain" parameter from ntv2_owf_gen().
The code in SMBNTLMv2encrypt_hash() should not be requesting case
changes on the domain name.

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Fri Aug 24 21:39:42 CEST 2012 on sn-devel-104
2012-08-24 21:39:41 +02:00
Jeremy Allison
cbdf6c5c51 Remove useless bool "upper_case_domain" parameter. 2012-08-24 10:57:11 -07:00
Jeremy Allison
43870fb2c8 Move uppercasing the domain out of smb_pwd_check_ntlmv2()
Allows us to remove a silly bool parameter.

Based on work done by "Blohm, Guntram (I/FP-37, extern)" <extern.guntram.blohm@audi.de>.
2012-08-24 10:57:01 -07:00
Stefan Metzmacher
a7208de06a libcli/auth: add support for AES/HMAC-SHA256 to the netlogon schannel sign/seal
metze

Signed-off-by: Günther Deschner <gd@samba.org>
2012-07-17 10:58:39 +02:00