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0c6e4adcb2
This brings in the code from both libcli/auth and source4/auth/ntlmssp. Andrew Bartlett Signed-off-by: Stefan Metzmacher <metze@samba.org>
145 lines
4.9 KiB
C
145 lines
4.9 KiB
C
/*
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Unix SMB/Netbios implementation.
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Version 3.0
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handle NLTMSSP, server side
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Copyright (C) Andrew Tridgell 2001
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Copyright (C) Andrew Bartlett 2001-2003
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Copyright (C) Andrew Bartlett 2005 (Updated from gensec).
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "../auth/ntlmssp/ntlmssp.h"
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#include "../auth/ntlmssp/ntlmssp_private.h"
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/**
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* Print out the NTLMSSP flags for debugging
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* @param neg_flags The flags from the packet
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*/
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void debug_ntlmssp_flags(uint32_t neg_flags)
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{
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DEBUG(3,("Got NTLMSSP neg_flags=0x%08x\n", neg_flags));
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if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_UNICODE\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_OEM)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM\n"));
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if (neg_flags & NTLMSSP_REQUEST_TARGET)
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DEBUGADD(4, (" NTLMSSP_REQUEST_TARGET\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_SIGN)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SIGN\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_SEAL)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_SEAL\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_DATAGRAM)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_DATAGRAM\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_LM_KEY)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_LM_KEY\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_NETWARE)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NETWARE\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_NTLM)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_ALWAYS_SIGN\n"));
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if (neg_flags & NTLMSSP_REQUEST_NON_NT_SESSION_KEY)
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DEBUGADD(4, (" NTLMSSP_REQUEST_NON_NT_SESSION_KEY\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_NTLM2\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_TARGET_INFO)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_TARGET_INFO\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_VERSION)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_VERSION\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_128)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_128\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_KEY_EXCH\n"));
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if (neg_flags & NTLMSSP_NEGOTIATE_56)
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DEBUGADD(4, (" NTLMSSP_NEGOTIATE_56\n"));
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}
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void ntlmssp_handle_neg_flags(struct ntlmssp_state *ntlmssp_state,
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uint32_t neg_flags, bool allow_lm)
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{
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if (neg_flags & NTLMSSP_NEGOTIATE_UNICODE) {
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ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_UNICODE;
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_OEM;
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ntlmssp_state->unicode = true;
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} else {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_UNICODE;
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ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_OEM;
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ntlmssp_state->unicode = false;
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}
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if ((neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) && allow_lm) {
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/* other end forcing us to use LM */
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ntlmssp_state->neg_flags |= NTLMSSP_NEGOTIATE_LM_KEY;
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ntlmssp_state->use_ntlmv2 = false;
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} else {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_LM_KEY;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_ALWAYS_SIGN;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_NTLM2)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_NTLM2;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_128)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_128;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_56)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_56;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_KEY_EXCH;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_SIGN;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_SEAL)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_SEAL;
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}
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if (!(neg_flags & NTLMSSP_NEGOTIATE_VERSION)) {
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ntlmssp_state->neg_flags &= ~NTLMSSP_NEGOTIATE_VERSION;
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}
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if ((neg_flags & NTLMSSP_REQUEST_TARGET)) {
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ntlmssp_state->neg_flags |= NTLMSSP_REQUEST_TARGET;
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}
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}
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/* Does this blob looks like it could be NTLMSSP? */
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bool ntlmssp_blob_matches_magic(const DATA_BLOB *blob)
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{
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if (blob->length > 8 && memcmp("NTLMSSP\0", blob->data, 8) == 0) {
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return true;
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} else {
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return false;
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}
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}
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