Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 246 insertions, 0 deletions

diff --git a/auth/ntlmssp/gensec_ntlmssp.c b/auth/ntlmssp/gensec_ntlmssp.c
new file mode 100644
index 0000000..329d8eb
--- /dev/null
+++ b/auth/ntlmssp/gensec_ntlmssp.c
@@ -0,0 +1,246 @@
+/*
+ *  Unix SMB/CIFS implementation.
+ *  Version 3.0
+ *  NTLMSSP Signing routines
+ *  Copyright (C) Luke Kenneth Casson Leighton 1996-2001
+ *  Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2005
+ *
+ *  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/gensec/gensec.h"
+#include "auth/gensec/gensec_internal.h"
+#include "auth/ntlmssp/ntlmssp_private.h"
+
+NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security,
+			      const DATA_BLOB *first_packet)
+{
+	if (ntlmssp_blob_matches_magic(first_packet)) {
+		return NT_STATUS_OK;
+	} else {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+}
+
+/**
+ * Return the NTLMSSP master session key
+ *
+ * @param ntlmssp_state NTLMSSP State
+ */
+
+NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security,
+				    TALLOC_CTX *mem_ctx,
+				    DATA_BLOB *session_key)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+	struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
+
+	if (ntlmssp_state->expected_state != NTLMSSP_DONE) {
+		return NT_STATUS_NO_USER_SESSION_KEY;
+	}
+
+	if (!ntlmssp_state->session_key.data) {
+		return NT_STATUS_NO_USER_SESSION_KEY;
+	}
+	*session_key = data_blob_talloc(mem_ctx, ntlmssp_state->session_key.data, ntlmssp_state->session_key.length);
+	if (!session_key->data) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	return NT_STATUS_OK;
+}
+
+bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
+				 uint32_t feature)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+	struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
+
+	if (feature & GENSEC_FEATURE_SIGN) {
+		if (!ntlmssp_state->session_key.length) {
+			return false;
+		}
+		if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
+			return true;
+		}
+	}
+	if (feature & GENSEC_FEATURE_SEAL) {
+		if (!ntlmssp_state->session_key.length) {
+			return false;
+		}
+		if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
+			return true;
+		}
+	}
+	if (feature & GENSEC_FEATURE_SESSION_KEY) {
+		if (ntlmssp_state->session_key.length) {
+			return true;
+		}
+	}
+	if (feature & GENSEC_FEATURE_DCE_STYLE) {
+		return true;
+	}
+	if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
+		if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
+			return true;
+		}
+	}
+	if (feature & GENSEC_FEATURE_SIGN_PKT_HEADER) {
+		return true;
+	}
+	if (feature & GENSEC_FEATURE_NEW_SPNEGO) {
+		if (!ntlmssp_state->session_key.length) {
+			return false;
+		}
+		if (!(ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN)) {
+			return false;
+		}
+		return ntlmssp_state->new_spnego;
+	}
+
+	return false;
+}
+
+NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp;
+
+	gensec_ntlmssp = talloc_zero(gensec_security,
+				     struct gensec_ntlmssp_context);
+	if (!gensec_ntlmssp) {
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	gensec_security->private_data = gensec_ntlmssp;
+	return NT_STATUS_OK;
+}
+
+NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
+				    TALLOC_CTX *sig_mem_ctx,
+				    const uint8_t *data, size_t length,
+				    const uint8_t *whole_pdu, size_t pdu_length,
+				    DATA_BLOB *sig)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+	NTSTATUS nt_status;
+
+	nt_status = ntlmssp_sign_packet(gensec_ntlmssp->ntlmssp_state,
+					sig_mem_ctx,
+					data, length,
+					whole_pdu, pdu_length,
+					sig);
+
+	return nt_status;
+}
+
+NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
+				     const uint8_t *data, size_t length,
+				     const uint8_t *whole_pdu, size_t pdu_length,
+				     const DATA_BLOB *sig)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+	NTSTATUS nt_status;
+
+	nt_status = ntlmssp_check_packet(gensec_ntlmssp->ntlmssp_state,
+					 data, length,
+					 whole_pdu, pdu_length,
+					 sig);
+
+	return nt_status;
+}
+
+NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
+				    TALLOC_CTX *sig_mem_ctx,
+				    uint8_t *data, size_t length,
+				    const uint8_t *whole_pdu, size_t pdu_length,
+				    DATA_BLOB *sig)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+	NTSTATUS nt_status;
+
+	nt_status = ntlmssp_seal_packet(gensec_ntlmssp->ntlmssp_state,
+					sig_mem_ctx,
+					data, length,
+					whole_pdu, pdu_length,
+					sig);
+
+	return nt_status;
+}
+
+/*
+  wrappers for the ntlmssp_*() functions
+*/
+NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
+				      uint8_t *data, size_t length,
+				      const uint8_t *whole_pdu, size_t pdu_length,
+				      const DATA_BLOB *sig)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+	NTSTATUS nt_status;
+
+	nt_status = ntlmssp_unseal_packet(gensec_ntlmssp->ntlmssp_state,
+					  data, length,
+					  whole_pdu, pdu_length,
+					  sig);
+
+	return nt_status;
+}
+
+size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size)
+{
+	return NTLMSSP_SIG_SIZE;
+}
+
+NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security,
+			     TALLOC_CTX *out_mem_ctx,
+			     const DATA_BLOB *in,
+			     DATA_BLOB *out)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+
+	return ntlmssp_wrap(gensec_ntlmssp->ntlmssp_state,
+			    out_mem_ctx,
+			    in, out);
+}
+
+
+NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security,
+			       TALLOC_CTX *out_mem_ctx,
+			       const DATA_BLOB *in,
+			       DATA_BLOB *out)
+{
+	struct gensec_ntlmssp_context *gensec_ntlmssp =
+		talloc_get_type_abort(gensec_security->private_data,
+				      struct gensec_ntlmssp_context);
+
+	return ntlmssp_unwrap(gensec_ntlmssp->ntlmssp_state,
+			      out_mem_ctx,
+			      in, out);
+}