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/*
* Unix SMB/CIFS implementation.
* Version 3.0
* NTLMSSP Signing routines
* Copyright (C) Andrew Bartlett 2003-2005
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/* For structures internal to the NTLMSSP implementation that should not be exposed */
#include "../lib/crypto/arcfour.h"
struct auth_session_info;
struct ntlmssp_crypt_direction {
uint32_t seq_num;
uint8_t sign_key[16];
struct arcfour_state seal_state;
};
union ntlmssp_crypt_state {
/* NTLM */
struct ntlmssp_crypt_direction ntlm;
/* NTLM2 */
struct {
struct ntlmssp_crypt_direction sending;
struct ntlmssp_crypt_direction receiving;
} ntlm2;
};
struct gensec_ntlmssp_context {
/* For GENSEC users */
void *server_returned_info;
/* used by both client and server implementation */
struct ntlmssp_state *ntlmssp_state;
};
/* The following definitions come from auth/ntlmssp.c */
NTSTATUS gensec_ntlmssp_update(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
struct tevent_context *ev,
const DATA_BLOB input, DATA_BLOB *out);
/* The following definitions come from auth/ntlmssp_util.c */
void debug_ntlmssp_flags(uint32_t neg_flags);
void ntlmssp_handle_neg_flags(struct ntlmssp_state *ntlmssp_state,
uint32_t neg_flags, bool allow_lm);
/* The following definitions come from auth/ntlmssp_server.c */
const char *ntlmssp_target_name(struct ntlmssp_state *ntlmssp_state,
uint32_t neg_flags, uint32_t *chal_flags);
NTSTATUS ntlmssp_server_negotiate(struct ntlmssp_state *ntlmssp_state,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out);
NTSTATUS ntlmssp_server_auth(struct ntlmssp_state *ntlmssp_state,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB request, DATA_BLOB *reply);
/* The following definitions come from auth/ntlmssp/ntlmssp_client.c */
/**
* Next state function for the Initial packet
*
* @param ntlmssp_state NTLMSSP State
* @param out_mem_ctx The DATA_BLOB *out will be allocated on this context
* @param in A NULL data blob (input ignored)
* @param out The initial negotiate request to the server, as an talloc()ed DATA_BLOB, on out_mem_ctx
* @return Errors or NT_STATUS_OK.
*/
NTSTATUS ntlmssp_client_initial(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
DATA_BLOB in, DATA_BLOB *out) ;
/**
* Next state function for the Challenge Packet. Generate an auth packet.
*
* @param gensec_security GENSEC state
* @param out_mem_ctx Memory context for *out
* @param in The server challnege, as a DATA_BLOB. reply.data must be NULL
* @param out The next request (auth packet) to the server, as an allocated DATA_BLOB, on the out_mem_ctx context
* @return Errors or NT_STATUS_OK.
*/
NTSTATUS ntlmssp_client_challenge(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out) ;
NTSTATUS gensec_ntlmssp_client_start(struct gensec_security *gensec_security);
/* The following definitions come from auth/ntlmssp/gensec_ntlmssp_server.c */
/**
* Next state function for the Negotiate packet (GENSEC wrapper)
*
* @param gensec_security GENSEC state
* @param out_mem_ctx Memory context for *out
* @param in The request, as a DATA_BLOB. reply.data must be NULL
* @param out The reply, as an allocated DATA_BLOB, caller to free.
* @return Errors or MORE_PROCESSING_REQUIRED if (normal) a reply is required.
*/
NTSTATUS gensec_ntlmssp_server_negotiate(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB request, DATA_BLOB *reply);
/**
* Next state function for the Authenticate packet (GENSEC wrapper)
*
* @param gensec_security GENSEC state
* @param out_mem_ctx Memory context for *out
* @param in The request, as a DATA_BLOB. reply.data must be NULL
* @param out The reply, as an allocated DATA_BLOB, caller to free.
* @return Errors or NT_STATUS_OK if authentication sucessful
*/
NTSTATUS gensec_ntlmssp_server_auth(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB in, DATA_BLOB *out);
/**
* Start NTLMSSP on the server side
*
*/
NTSTATUS gensec_ntlmssp_server_start(struct gensec_security *gensec_security);
/**
* Return the credentials of a logged on user, including session keys
* etc.
*
* Only valid after a successful authentication
*
* May only be called once per authentication.
*
*/
NTSTATUS gensec_ntlmssp_session_info(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
struct auth_session_info **session_info) ;
/* The following definitions come from auth/ntlmssp/gensec_ntlmssp.c */
NTSTATUS gensec_ntlmssp_sign_packet(struct gensec_security *gensec_security,
TALLOC_CTX *sig_mem_ctx,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig);
NTSTATUS gensec_ntlmssp_check_packet(struct gensec_security *gensec_security,
const uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig);
NTSTATUS gensec_ntlmssp_seal_packet(struct gensec_security *gensec_security,
TALLOC_CTX *sig_mem_ctx,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
DATA_BLOB *sig);
NTSTATUS gensec_ntlmssp_unseal_packet(struct gensec_security *gensec_security,
uint8_t *data, size_t length,
const uint8_t *whole_pdu, size_t pdu_length,
const DATA_BLOB *sig);
size_t gensec_ntlmssp_sig_size(struct gensec_security *gensec_security, size_t data_size) ;
NTSTATUS gensec_ntlmssp_wrap(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
NTSTATUS gensec_ntlmssp_unwrap(struct gensec_security *gensec_security,
TALLOC_CTX *out_mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
/**
* Return the NTLMSSP master session key
*
* @param ntlmssp_state NTLMSSP State
*/
NTSTATUS gensec_ntlmssp_magic(struct gensec_security *gensec_security,
const DATA_BLOB *first_packet);
bool gensec_ntlmssp_have_feature(struct gensec_security *gensec_security,
uint32_t feature);
NTSTATUS gensec_ntlmssp_session_key(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key);
NTSTATUS gensec_ntlmssp_start(struct gensec_security *gensec_security);
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