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