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/*
Unix SMB/CIFS implementation.
Generic Authentication Interface
Copyright (C) Andrew Tridgell 2003
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005
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/>.
*/
#ifndef __GENSEC_INTERNAL_H__
#define __GENSEC_INTERNAL_H__
struct gensec_security;
struct gensec_security_ops {
const char *name;
const char *sasl_name;
uint8_t auth_type; /* 0 if not offered on DCE-RPC */
const char **oid; /* NULL if not offered by SPNEGO */
NTSTATUS (*client_start)(struct gensec_security *gensec_security);
NTSTATUS (*server_start)(struct gensec_security *gensec_security);
/**
Determine if a packet has the right 'magic' for this mechanism
*/
NTSTATUS (*magic)(struct gensec_security *gensec_security,
const DATA_BLOB *first_packet);
NTSTATUS (*update)(struct gensec_security *gensec_security, TALLOC_CTX *out_mem_ctx,
struct tevent_context *ev,
const DATA_BLOB in, DATA_BLOB *out);
struct tevent_req *(*update_send)(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct gensec_security *gensec_security,
const DATA_BLOB in);
NTSTATUS (*update_recv)(struct tevent_req *req,
TALLOC_CTX *out_mem_ctx,
DATA_BLOB *out);
NTSTATUS (*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 (*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);
size_t (*sig_size)(struct gensec_security *gensec_security, size_t data_size);
size_t (*max_input_size)(struct gensec_security *gensec_security);
size_t (*max_wrapped_size)(struct gensec_security *gensec_security);
NTSTATUS (*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 (*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);
NTSTATUS (*wrap)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
NTSTATUS (*unwrap)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out);
NTSTATUS (*wrap_packets)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out,
size_t *len_processed);
NTSTATUS (*unwrap_packets)(struct gensec_security *gensec_security,
TALLOC_CTX *mem_ctx,
const DATA_BLOB *in,
DATA_BLOB *out,
size_t *len_processed);
NTSTATUS (*packet_full_request)(struct gensec_security *gensec_security,
DATA_BLOB blob, size_t *size);
NTSTATUS (*session_key)(struct gensec_security *gensec_security, TALLOC_CTX *mem_ctx,
DATA_BLOB *session_key);
NTSTATUS (*session_info)(struct gensec_security *gensec_security, TALLOC_CTX *mem_ctx,
struct auth_session_info **session_info);
void (*want_feature)(struct gensec_security *gensec_security,
uint32_t feature);
bool (*have_feature)(struct gensec_security *gensec_security,
uint32_t feature);
NTTIME (*expire_time)(struct gensec_security *gensec_security);
bool enabled;
bool kerberos;
enum gensec_priority priority;
};
struct gensec_security_ops_wrapper {
const struct gensec_security_ops *op;
const char *oid;
};
struct gensec_security {
const struct gensec_security_ops *ops;
void *private_data;
struct cli_credentials *credentials;
struct gensec_target target;
enum gensec_role gensec_role;
bool subcontext;
uint32_t want_features;
uint32_t max_update_size;
uint8_t dcerpc_auth_level;
struct tsocket_address *local_addr, *remote_addr;
struct gensec_settings *settings;
/* When we are a server, this may be filled in to provide an
* NTLM authentication backend, and user lookup (such as if no
* PAC is found) */
struct auth4_context *auth_context;
};
/* this structure is used by backends to determine the size of some critical types */
struct gensec_critical_sizes {
int interface_version;
int sizeof_gensec_security_ops;
int sizeof_gensec_security;
};
#endif /* __GENSEC_H__ */
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