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;
111 gensec_ntlmssp = talloc_zero(gensec_security,
112 struct gensec_ntlmssp_context);
113 if (!gensec_ntlmssp) {
114 return NT_STATUS_NO_MEMORY;
117 gensec_ntlmssp->gensec_security = gensec_security;
119 gensec_security->private_data = gensec_ntlmssp;
123 NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
124 TALLOC_CTX *sig_mem_ctx,
125 const uint8_t *data, size_t length,
126 const uint8_t *whole_pdu, size_t pdu_length,
129 struct gensec_ntlmssp_context *gensec_ntlmssp =
130 talloc_get_type_abort(gensec_security->private_data,
131 struct gensec_ntlmssp_context);
134 nt_status = ntlmssp_sign_packet(gensec_ntlmssp->ntlmssp_state,
137 whole_pdu, pdu_length,
143 NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
144 const uint8_t *data, size_t length,
145 const uint8_t *whole_pdu, size_t pdu_length,
146 const DATA_BLOB *sig)
148 struct gensec_ntlmssp_context *gensec_ntlmssp =
149 talloc_get_type_abort(gensec_security->private_data,
150 struct gensec_ntlmssp_context);
153 nt_status = ntlmssp_check_packet(gensec_ntlmssp->ntlmssp_state,
155 whole_pdu, pdu_length,
161 NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
162 TALLOC_CTX *sig_mem_ctx,
163 uint8_t *data, size_t length,
164 const uint8_t *whole_pdu, size_t pdu_length,
167 struct gensec_ntlmssp_context *gensec_ntlmssp =
168 talloc_get_type_abort(gensec_security->private_data,
169 struct gensec_ntlmssp_context);
172 nt_status = ntlmssp_seal_packet(gensec_ntlmssp->ntlmssp_state,
175 whole_pdu, pdu_length,
182 wrappers for the ntlmssp_*() functions
184 NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
185 uint8_t *data, size_t length,
186 const uint8_t *whole_pdu, size_t pdu_length,
187 const DATA_BLOB *sig)
189 struct gensec_ntlmssp_context *gensec_ntlmssp =
190 talloc_get_type_abort(gensec_security->private_data,
191 struct gensec_ntlmssp_context);
194 nt_status = ntlmssp_unseal_packet(gensec_ntlmssp->ntlmssp_state,
196 whole_pdu, pdu_length,
202 size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size)
204 return NTLMSSP_SIG_SIZE;
207 NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security,
208 TALLOC_CTX *out_mem_ctx,
212 struct gensec_ntlmssp_context *gensec_ntlmssp =
213 talloc_get_type_abort(gensec_security->private_data,
214 struct gensec_ntlmssp_context);
216 return ntlmssp_wrap(gensec_ntlmssp->ntlmssp_state,
222 NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security,
223 TALLOC_CTX *out_mem_ctx,
227 struct gensec_ntlmssp_context *gensec_ntlmssp =
228 talloc_get_type_abort(gensec_security->private_data,
229 struct gensec_ntlmssp_context);
231 return ntlmssp_unwrap(gensec_ntlmssp->ntlmssp_state,