auth: rename ntlmssp.c to ntlmssp_util.c

1 files changed, 144 insertions, 0 deletions

diff --git a/auth/ntlmssp/ntlmssp_util.c b/auth/ntlmssp/ntlmssp_util.c
new file mode 100644
index 00000000000..96793abfda1
--- /dev/null
+++ b/auth/ntlmssp/ntlmssp_util.c
@@ -0,0 +1,144 @@
+/*
+   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 "../auth/ntlmssp/ntlmssp.h"
+#include "../auth/ntlmssp/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;
+	}
+}
+
+/* Does this blob looks like it could be NTLMSSP? */
+bool ntlmssp_blob_matches_magic(const DATA_BLOB *blob)
+{
+	if (blob->length > 8 && memcmp("NTLMSSP\0", blob->data, 8) == 0) {
+		return true;
+	} else {
+		return false;
+	}
+}