2 * Unix SMB/CIFS implementation.
4 * NTLMSSP Signing routines
5 * Copyright (C) Luke Kenneth Casson Leighton 1996-2001
6 * Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2005
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 3 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, see <http://www.gnu.org/licenses/>.
23 #include "auth/ntlmssp/ntlmssp.h"
24 #include "auth/gensec/gensec.h"
25 #include "auth/gensec/gensec_internal.h"
26 #include "auth/ntlmssp/ntlmssp_private.h"
28 NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security,
29 const DATA_BLOB *first_packet)
31 if (ntlmssp_blob_matches_magic(first_packet)) {
34 return NT_STATUS_INVALID_PARAMETER;
39 * Return the NTLMSSP master session key
41 * @param ntlmssp_state NTLMSSP State
44 NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security,
46 DATA_BLOB *session_key)
48 struct gensec_ntlmssp_context *gensec_ntlmssp =
49 talloc_get_type_abort(gensec_security->private_data,
50 struct gensec_ntlmssp_context);
51 struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
53 if (ntlmssp_state->expected_state != NTLMSSP_DONE) {
54 return NT_STATUS_NO_USER_SESSION_KEY;
57 if (!ntlmssp_state->session_key.data) {
58 return NT_STATUS_NO_USER_SESSION_KEY;
60 *session_key = data_blob_talloc(mem_ctx, ntlmssp_state->session_key.data, ntlmssp_state->session_key.length);
61 if (!session_key->data) {
62 return NT_STATUS_NO_MEMORY;
68 bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
71 struct gensec_ntlmssp_context *gensec_ntlmssp =
72 talloc_get_type_abort(gensec_security->private_data,
73 struct gensec_ntlmssp_context);
74 struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
76 if (feature & GENSEC_FEATURE_SIGN) {
77 if (!ntlmssp_state->session_key.length) {
80 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
84 if (feature & GENSEC_FEATURE_SEAL) {
85 if (!ntlmssp_state->session_key.length) {
88 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
92 if (feature & GENSEC_FEATURE_SESSION_KEY) {
93 if (ntlmssp_state->session_key.length) {
97 if (feature & GENSEC_FEATURE_DCE_STYLE) {
100 if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
101 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
105 if (feature & GENSEC_FEATURE_SIGN_PKT_HEADER) {
112 NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security)
114 struct gensec_ntlmssp_context *gensec_ntlmssp;
116 gensec_ntlmssp = talloc_zero(gensec_security,
117 struct gensec_ntlmssp_context);
118 if (!gensec_ntlmssp) {
119 return NT_STATUS_NO_MEMORY;
122 gensec_security->private_data = gensec_ntlmssp;
126 NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
127 TALLOC_CTX *sig_mem_ctx,
128 const uint8_t *data, size_t length,
129 const uint8_t *whole_pdu, size_t pdu_length,
132 struct gensec_ntlmssp_context *gensec_ntlmssp =
133 talloc_get_type_abort(gensec_security->private_data,
134 struct gensec_ntlmssp_context);
137 nt_status = ntlmssp_sign_packet(gensec_ntlmssp->ntlmssp_state,
140 whole_pdu, pdu_length,
146 NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
147 const uint8_t *data, size_t length,
148 const uint8_t *whole_pdu, size_t pdu_length,
149 const DATA_BLOB *sig)
151 struct gensec_ntlmssp_context *gensec_ntlmssp =
152 talloc_get_type_abort(gensec_security->private_data,
153 struct gensec_ntlmssp_context);
156 nt_status = ntlmssp_check_packet(gensec_ntlmssp->ntlmssp_state,
158 whole_pdu, pdu_length,
164 NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
165 TALLOC_CTX *sig_mem_ctx,
166 uint8_t *data, size_t length,
167 const uint8_t *whole_pdu, size_t pdu_length,
170 struct gensec_ntlmssp_context *gensec_ntlmssp =
171 talloc_get_type_abort(gensec_security->private_data,
172 struct gensec_ntlmssp_context);
175 nt_status = ntlmssp_seal_packet(gensec_ntlmssp->ntlmssp_state,
178 whole_pdu, pdu_length,
185 wrappers for the ntlmssp_*() functions
187 NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
188 uint8_t *data, size_t length,
189 const uint8_t *whole_pdu, size_t pdu_length,
190 const DATA_BLOB *sig)
192 struct gensec_ntlmssp_context *gensec_ntlmssp =
193 talloc_get_type_abort(gensec_security->private_data,
194 struct gensec_ntlmssp_context);
197 nt_status = ntlmssp_unseal_packet(gensec_ntlmssp->ntlmssp_state,
199 whole_pdu, pdu_length,
205 size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size)
207 return NTLMSSP_SIG_SIZE;
210 NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security,
211 TALLOC_CTX *out_mem_ctx,
215 struct gensec_ntlmssp_context *gensec_ntlmssp =
216 talloc_get_type_abort(gensec_security->private_data,
217 struct gensec_ntlmssp_context);
219 return ntlmssp_wrap(gensec_ntlmssp->ntlmssp_state,
225 NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security,
226 TALLOC_CTX *out_mem_ctx,
230 struct gensec_ntlmssp_context *gensec_ntlmssp =
231 talloc_get_type_abort(gensec_security->private_data,
232 struct gensec_ntlmssp_context);
234 return ntlmssp_unwrap(gensec_ntlmssp->ntlmssp_state,