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/ntlmssp/ntlmssp_private.h"
27 NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security,
28 const DATA_BLOB *first_packet)
30 if (ntlmssp_blob_matches_magic(first_packet)) {
33 return NT_STATUS_INVALID_PARAMETER;
38 * Return the NTLMSSP master session key
40 * @param ntlmssp_state NTLMSSP State
43 NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security,
45 DATA_BLOB *session_key)
47 struct gensec_ntlmssp_context *gensec_ntlmssp =
48 talloc_get_type_abort(gensec_security->private_data,
49 struct gensec_ntlmssp_context);
50 struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
52 if (ntlmssp_state->expected_state != NTLMSSP_DONE) {
53 return NT_STATUS_NO_USER_SESSION_KEY;
56 if (!ntlmssp_state->session_key.data) {
57 return NT_STATUS_NO_USER_SESSION_KEY;
59 *session_key = data_blob_talloc(mem_ctx, ntlmssp_state->session_key.data, ntlmssp_state->session_key.length);
60 if (!session_key->data) {
61 return NT_STATUS_NO_MEMORY;
67 bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
70 struct gensec_ntlmssp_context *gensec_ntlmssp =
71 talloc_get_type_abort(gensec_security->private_data,
72 struct gensec_ntlmssp_context);
73 struct ntlmssp_state *ntlmssp_state = gensec_ntlmssp->ntlmssp_state;
75 if (feature & GENSEC_FEATURE_SIGN) {
76 if (!ntlmssp_state->session_key.length) {
79 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
83 if (feature & GENSEC_FEATURE_SEAL) {
84 if (!ntlmssp_state->session_key.length) {
87 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
91 if (feature & GENSEC_FEATURE_SESSION_KEY) {
92 if (ntlmssp_state->session_key.length) {
96 if (feature & GENSEC_FEATURE_DCE_STYLE) {
99 if (feature & GENSEC_FEATURE_ASYNC_REPLIES) {
100 if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
107 NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security)
109 struct gensec_ntlmssp_context *gensec_ntlmssp;
110 struct ntlmssp_state *ntlmssp_state;
112 gensec_ntlmssp = talloc_zero(gensec_security,
113 struct gensec_ntlmssp_context);
114 if (!gensec_ntlmssp) {
115 return NT_STATUS_NO_MEMORY;
118 gensec_ntlmssp->gensec_security = gensec_security;
120 ntlmssp_state = talloc_zero(gensec_ntlmssp,
121 struct ntlmssp_state);
122 if (!ntlmssp_state) {
123 return NT_STATUS_NO_MEMORY;
126 ntlmssp_state->callback_private = gensec_ntlmssp;
128 gensec_ntlmssp->ntlmssp_state = ntlmssp_state;
130 gensec_security->private_data = gensec_ntlmssp;
134 NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
135 TALLOC_CTX *sig_mem_ctx,
136 const uint8_t *data, size_t length,
137 const uint8_t *whole_pdu, size_t pdu_length,
140 struct gensec_ntlmssp_context *gensec_ntlmssp =
141 talloc_get_type_abort(gensec_security->private_data,
142 struct gensec_ntlmssp_context);
145 nt_status = ntlmssp_sign_packet(gensec_ntlmssp->ntlmssp_state,
148 whole_pdu, pdu_length,
154 NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
155 const uint8_t *data, size_t length,
156 const uint8_t *whole_pdu, size_t pdu_length,
157 const DATA_BLOB *sig)
159 struct gensec_ntlmssp_context *gensec_ntlmssp =
160 talloc_get_type_abort(gensec_security->private_data,
161 struct gensec_ntlmssp_context);
164 nt_status = ntlmssp_check_packet(gensec_ntlmssp->ntlmssp_state,
166 whole_pdu, pdu_length,
172 NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
173 TALLOC_CTX *sig_mem_ctx,
174 uint8_t *data, size_t length,
175 const uint8_t *whole_pdu, size_t pdu_length,
178 struct gensec_ntlmssp_context *gensec_ntlmssp =
179 talloc_get_type_abort(gensec_security->private_data,
180 struct gensec_ntlmssp_context);
183 nt_status = ntlmssp_seal_packet(gensec_ntlmssp->ntlmssp_state,
186 whole_pdu, pdu_length,
193 wrappers for the ntlmssp_*() functions
195 NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
196 uint8_t *data, size_t length,
197 const uint8_t *whole_pdu, size_t pdu_length,
198 const DATA_BLOB *sig)
200 struct gensec_ntlmssp_context *gensec_ntlmssp =
201 talloc_get_type_abort(gensec_security->private_data,
202 struct gensec_ntlmssp_context);
205 nt_status = ntlmssp_unseal_packet(gensec_ntlmssp->ntlmssp_state,
207 whole_pdu, pdu_length,
213 size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size)
215 return NTLMSSP_SIG_SIZE;
218 NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security,
219 TALLOC_CTX *out_mem_ctx,
223 struct gensec_ntlmssp_context *gensec_ntlmssp =
224 talloc_get_type_abort(gensec_security->private_data,
225 struct gensec_ntlmssp_context);
227 return ntlmssp_wrap(gensec_ntlmssp->ntlmssp_state,
233 NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security,
234 TALLOC_CTX *out_mem_ctx,
238 struct gensec_ntlmssp_context *gensec_ntlmssp =
239 talloc_get_type_abort(gensec_security->private_data,
240 struct gensec_ntlmssp_context);
242 return ntlmssp_unwrap(gensec_ntlmssp->ntlmssp_state,