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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* NTLMSSP mode */
/* NTLMSSP message types */
enum NTLM_MESSAGE_TYPE
{
+ NTLMSSP_INITIAL = 0 /* samba internal state */,
NTLMSSP_NEGOTIATE = 1,
NTLMSSP_CHALLENGE = 2,
NTLMSSP_AUTH = 3,
- NTLMSSP_UNKNOWN = 4
+ NTLMSSP_UNKNOWN = 4,
+ NTLMSSP_DONE = 5 /* samba final state */
};
/* NTLMSSP negotiation flags */
#define NTLMSSP_CHAL_NON_NT_SESSION_KEY 0x00040000
#define NTLMSSP_NEGOTIATE_NTLM2 0x00080000
#define NTLMSSP_CHAL_TARGET_INFO 0x00800000
+#define NTLMSSP_NEGOTIATE_VERSION 0x02000000
#define NTLMSSP_NEGOTIATE_128 0x20000000 /* 128-bit encryption */
#define NTLMSSP_NEGOTIATE_KEY_EXCH 0x40000000
-#define NTLMSSP_NEGOTIATE_080000000 0x80000000
+#define NTLMSSP_NEGOTIATE_56 0x80000000
-#define NTLMSSP_NAME_TYPE_DOMAIN 0x01
-#define NTLMSSP_NAME_TYPE_SERVER 0x02
-#define NTLMSSP_NAME_TYPE_DOMAIN_DNS 0x03
-#define NTLMSSP_NAME_TYPE_SERVER_DNS 0x04
+#define NTLMSSP_FEATURE_SESSION_KEY 0x00000001
+#define NTLMSSP_FEATURE_SIGN 0x00000002
+#define NTLMSSP_FEATURE_SEAL 0x00000004
+
+#define NTLMSSP_NAME_TYPE_SERVER 0x01
+#define NTLMSSP_NAME_TYPE_DOMAIN 0x02
+#define NTLMSSP_NAME_TYPE_SERVER_DNS 0x03
+#define NTLMSSP_NAME_TYPE_DOMAIN_DNS 0x04
+
+#define NTLMSSP_SIG_SIZE 16
typedef struct ntlmssp_state
{
- TALLOC_CTX *mem_ctx;
+ unsigned int ref_count;
enum NTLMSSP_ROLE role;
- BOOL unicode;
+ enum server_types server_role;
+ uint32 expected_state;
+
+ bool unicode;
+ bool use_ntlmv2;
char *user;
char *domain;
char *workstation;
+ unsigned char *nt_hash;
+ unsigned char *lm_hash;
+ char *server_domain;
+
+ DATA_BLOB internal_chal; /* Random challenge as supplied to the client for NTLM authentication */
+
+ DATA_BLOB chal; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
DATA_BLOB lm_resp;
DATA_BLOB nt_resp;
- DATA_BLOB chal;
+ DATA_BLOB session_key;
+
+ uint32 neg_flags; /* the current state of negotiation with the NTLMSSP partner */
+
void *auth_context;
- const uint8 *(*get_challenge)(struct ntlmssp_state *ntlmssp_state);
- NTSTATUS (*check_password)(struct ntlmssp_state *ntlmssp_state);
+
+ /**
+ * Callback to get the 'challenge' used for NTLM authentication.
+ *
+ * @param ntlmssp_state This structure
+ * @return 8 bytes of challnege data, determined by the server to be the challenge for NTLM authentication
+ *
+ */
+ void (*get_challenge)(const struct ntlmssp_state *ntlmssp_state,
+ uint8_t challenge[8]);
+
+ /**
+ * Callback to find if the challenge used by NTLM authentication may be modified
+ *
+ * The NTLM2 authentication scheme modifies the effective challenge, but this is not compatiable with the
+ * current 'security=server' implementation..
+ *
+ * @param ntlmssp_state This structure
+ * @return Can the challenge be set to arbitary values?
+ *
+ */
+ bool (*may_set_challenge)(const struct ntlmssp_state *ntlmssp_state);
+
+ /**
+ * Callback to set the 'challenge' used for NTLM authentication.
+ *
+ * The callback may use the void *auth_context to store state information, but the same value is always available
+ * from the DATA_BLOB chal on this structure.
+ *
+ * @param ntlmssp_state This structure
+ * @param challenge 8 bytes of data, agreed by the client and server to be the effective challenge for NTLM2 authentication
+ *
+ */
+ NTSTATUS (*set_challenge)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *challenge);
+
+ /**
+ * Callback to check the user's password.
+ *
+ * The callback must reads the feilds of this structure for the information it needs on the user
+ * @param ntlmssp_state This structure
+ * @param nt_session_key If an NT session key is returned by the authentication process, return it here
+ * @param lm_session_key If an LM session key is returned by the authentication process, return it here
+ *
+ */
+ NTSTATUS (*check_password)(struct ntlmssp_state *ntlmssp_state, DATA_BLOB *nt_session_key, DATA_BLOB *lm_session_key);
const char *(*get_global_myname)(void);
const char *(*get_domain)(void);
- int server_role;
- uint32 expected_state;
-} NTLMSSP_STATE;
+ /* ntlmv2 */
+
+ unsigned char send_sign_key[16];
+ unsigned char send_seal_key[16];
+ unsigned char recv_sign_key[16];
+ unsigned char recv_seal_key[16];
+ struct arcfour_state send_seal_arc4_state;
+ struct arcfour_state recv_seal_arc4_state;
+
+ uint32 ntlm2_send_seq_num;
+ uint32 ntlm2_recv_seq_num;
+
+ /* ntlmv1 */
+ struct arcfour_state ntlmv1_arc4_state;
+ uint32 ntlmv1_seq_num;
+
+ /* it turns out that we don't always get the
+ response in at the time we want to process it.
+ Store it here, until we need it */
+ DATA_BLOB stored_response;
+} NTLMSSP_STATE;
git.samba.org / amitay / samba.git / blobdiff