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-rw-r--r--auth/ntlmssp/gensec_ntlmssp.c246
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);
+}