--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+ SMB parameters and setup
+ Copyright (C) Andrew Tridgell 1992-1997
+ Copyright (C) Luke Kenneth Casson Leighton 1996-1997
+ Copyright (C) Paul Ashton 1997
+
+ 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
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ 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.
+*/
+
+/* NTLMSSP mode */
+enum NTLMSSP_ROLE
+{
+ NTLMSSP_SERVER,
+ NTLMSSP_CLIENT
+};
+
+/* 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_DONE = 5 /* samba final state */
+};
+
+/* NTLMSSP negotiation flags */
+#define NTLMSSP_NEGOTIATE_UNICODE 0x00000001
+#define NTLMSSP_NEGOTIATE_OEM 0x00000002
+#define NTLMSSP_REQUEST_TARGET 0x00000004
+#define NTLMSSP_NEGOTIATE_SIGN 0x00000010 /* Message integrity */
+#define NTLMSSP_NEGOTIATE_SEAL 0x00000020 /* Message confidentiality */
+#define NTLMSSP_NEGOTIATE_DATAGRAM_STYLE 0x00000040
+#define NTLMSSP_NEGOTIATE_LM_KEY 0x00000080
+#define NTLMSSP_NEGOTIATE_NETWARE 0x00000100
+#define NTLMSSP_NEGOTIATE_NTLM 0x00000200
+#define NTLMSSP_NEGOTIATE_DOMAIN_SUPPLIED 0x00001000
+#define NTLMSSP_NEGOTIATE_WORKSTATION_SUPPLIED 0x00002000
+#define NTLMSSP_NEGOTIATE_THIS_IS_LOCAL_CALL 0x00004000
+#define NTLMSSP_NEGOTIATE_ALWAYS_SIGN 0x00008000
+#define NTLMSSP_TARGET_TYPE_DOMAIN 0x10000
+#define NTLMSSP_TARGET_TYPE_SERVER 0x20000
+#define NTLMSSP_CHAL_INIT_RESPONSE 0x00010000
+
+#define NTLMSSP_CHAL_ACCEPT_RESPONSE 0x00020000
+#define NTLMSSP_CHAL_NON_NT_SESSION_KEY 0x00040000
+#define NTLMSSP_NEGOTIATE_NTLM2 0x00080000
+#define NTLMSSP_CHAL_TARGET_INFO 0x00800000
+#define NTLMSSP_NEGOTIATE_128 0x20000000 /* 128-bit encryption */
+#define NTLMSSP_NEGOTIATE_KEY_EXCH 0x40000000
+#define NTLMSSP_NEGOTIATE_56 0x80000000
+
+#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;
+ enum server_types server_role;
+ uint32 expected_state;
+
+ BOOL unicode;
+ BOOL use_ntlmv2;
+ char *user;
+ char *domain;
+ char *workstation;
+ char *password;
+ 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 session_key;
+
+ uint32 neg_flags; /* the current state of negotiation with the NTLMSSP partner */
+
+ 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 */
+
+ unsigned char send_sign_key[16];
+ unsigned char send_seal_key[16];
+ unsigned char recv_sign_key[16];
+ unsigned char recv_seal_key[16];
+
+ unsigned char send_seal_arc4_state[258];
+ unsigned char recv_seal_arc4_state[258];
+
+ 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;
projects / samba / blobdiff