/* 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_UNKNOWN_02000000 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
-typedef struct ntlmssp_state
-{
- TALLOC_CTX *mem_ctx;
- enum NTLMSSP_ROLE role;
- BOOL unicode;
- char *user;
- char *domain;
- char *workstation;
- DATA_BLOB lm_resp;
- DATA_BLOB nt_resp;
- DATA_BLOB chal;
- void *auth_context;
- const uint8 *(*get_challenge)(struct ntlmssp_state *ntlmssp_state);
- NTSTATUS (*check_password)(struct ntlmssp_state *ntlmssp_state);
-
- const char *(*get_global_myname)(void);
- const char *(*get_domain)(void);
+#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
- int server_role;
- uint32 expected_state;
-} NTLMSSP_STATE;
+#define NTLMSSP_SIG_SIZE 16
-typedef struct ntlmssp_client_state
+typedef struct ntlmssp_state
{
TALLOC_CTX *mem_ctx;
unsigned int ref_count;
+ enum NTLMSSP_ROLE role;
+ enum server_types server_role;
+ uint32 expected_state;
BOOL unicode;
BOOL use_ntlmv2;
char *user;
char *domain;
char *workstation;
- char *password;
+ unsigned char *nt_hash;
+ unsigned char *lm_hash;
+ char *server_domain;
- const char *(*get_global_myname)(void);
- const char *(*get_domain)(void);
+ DATA_BLOB internal_chal; /* Random challenge as supplied to the client for NTLM authentication */
- DATA_BLOB chal;
+ DATA_BLOB chal; /* Random challenge as input into the actual NTLM (or NTLM2) authentication */
DATA_BLOB lm_resp;
DATA_BLOB nt_resp;
DATA_BLOB session_key;
- uint32 neg_flags;
-
- /* SMB Signing */
+ uint32 neg_flags; /* the current state of negotiation with the NTLMSSP partner */
- uint32 ntlmssp_seq_num;
+ void *auth_context;
+
+ /**
+ * 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
+ *
+ */
+ const uint8 *(*get_challenge)(const struct ntlmssp_state *ntlmssp_state);
+
+ /**
+ * 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);
/* ntlmv2 */
- char cli_sign_const[16];
- char cli_seal_const[16];
- char srv_sign_const[16];
- char srv_seal_const[16];
- unsigned char cli_sign_hash[258];
- unsigned char cli_seal_hash[258];
- unsigned char srv_sign_hash[258];
- unsigned char srv_seal_hash[258];
+ unsigned char send_sign_key[16];
+ unsigned char send_seal_key[16];
+ unsigned char recv_sign_key[16];
+ unsigned char recv_seal_key[16];
- /* ntlmv1 */
- unsigned char ntlmssp_hash[258];
+ unsigned char send_seal_arc4_state[258];
+ unsigned char recv_seal_arc4_state[258];
-} NTLMSSP_CLIENT_STATE;
+ uint32 ntlm2_send_seq_num;
+ uint32 ntlm2_recv_seq_num;
+ /* ntlmv1 */
+ unsigned char ntlmv1_arc4_state[258];
+ 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 / tprouty / samba.git / blobdiff