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/*
Unix SMB/CIFS implementation.
Standardised Authentication types
Copyright (C) Andrew Bartlett 2001
Copyright (C) Stefan Metzmacher 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 _SAMBA_AUTH_H
#define _SAMBA_AUTH_H
#include "librpc/gen_ndr/ndr_krb5pac.h"
#include "librpc/gen_ndr/auth.h"
#include "../auth/common_auth.h"
extern const char *krbtgt_attrs[];
extern const char *server_attrs[];
extern const char *user_attrs[];
union netr_Validation;
struct netr_SamBaseInfo;
struct netr_SamInfo3;
struct loadparm_context;
/* modules can use the following to determine if the interface has changed
* please increment the version number after each interface change
* with a comment and maybe update struct auth_critical_sizes.
*/
/* version 1 - version from samba 3.0 - metze */
/* version 2 - initial samba4 version - metze */
/* version 3 - subsequent samba4 version - abartlet */
/* version 4 - subsequent samba4 version - metze */
/* version 0 - till samba4 is stable - metze */
#define AUTH_INTERFACE_VERSION 0
#define AUTH_SESSION_INFO_DEFAULT_GROUPS 0x01 /* Add the user to the default world and network groups */
#define AUTH_SESSION_INFO_AUTHENTICATED 0x02 /* Add the user to the 'authenticated users' group */
#define AUTH_SESSION_INFO_SIMPLE_PRIVILEGES 0x04 /* Use a trivial map between users and privilages, rather than a DB */
struct auth_method_context;
struct auth_check_password_request;
struct auth_context;
struct auth_session_info;
struct ldb_dn;
struct auth_operations {
const char *name;
/* If you are using this interface, then you are probably
* getting something wrong. This interface is only for
* security=server, and makes a number of compromises to allow
* that. It is not compatible with being a PDC. */
NTSTATUS (*get_challenge)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx, uint8_t chal[8]);
/* Given the user supplied info, check if this backend want to handle the password checking */
NTSTATUS (*want_check)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info);
/* Given the user supplied info, check a password */
NTSTATUS (*check_password)(struct auth_method_context *ctx, TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info,
struct auth_user_info_dc **interim_info);
/* Lookup a 'session info interim' return based only on the principal or DN */
NTSTATUS (*get_user_info_dc_principal)(TALLOC_CTX *mem_ctx,
struct auth_context *auth_context,
const char *principal,
struct ldb_dn *user_dn,
struct auth_user_info_dc **interim_info);
};
struct auth_method_context {
struct auth_method_context *prev, *next;
struct auth_context *auth_ctx;
const struct auth_operations *ops;
int depth;
void *private_data;
};
struct auth_context {
struct {
/* Who set this up in the first place? */
const char *set_by;
bool may_be_modified;
DATA_BLOB data;
} challenge;
/* methods, in the order they should be called */
struct auth_method_context *methods;
/* the event context to use for calls that can block */
struct tevent_context *event_ctx;
/* the messaging context which can be used by backends */
struct imessaging_context *msg_ctx;
/* loadparm context */
struct loadparm_context *lp_ctx;
/* SAM database for this local machine - to fill in local groups, or to authenticate local NTLM users */
struct ldb_context *sam_ctx;
NTSTATUS (*check_password)(struct auth_context *auth_ctx,
TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info,
struct auth_user_info_dc **user_info_dc);
NTSTATUS (*get_challenge)(struct auth_context *auth_ctx, uint8_t chal[8]);
bool (*challenge_may_be_modified)(struct auth_context *auth_ctx);
NTSTATUS (*set_challenge)(struct auth_context *auth_ctx, const uint8_t chal[8], const char *set_by);
NTSTATUS (*get_user_info_dc_principal)(TALLOC_CTX *mem_ctx,
struct auth_context *auth_ctx,
const char *principal,
struct ldb_dn *user_dn,
struct auth_user_info_dc **user_info_dc);
NTSTATUS (*generate_session_info)(TALLOC_CTX *mem_ctx,
struct auth_context *auth_context,
struct auth_user_info_dc *user_info_dc,
uint32_t session_info_flags,
struct auth_session_info **session_info);
};
/* this structure is used by backends to determine the size of some critical types */
struct auth_critical_sizes {
int interface_version;
int sizeof_auth_operations;
int sizeof_auth_methods;
int sizeof_auth_context;
int sizeof_auth_usersupplied_info;
int sizeof_auth_user_info_dc;
};
NTSTATUS encrypt_user_info(TALLOC_CTX *mem_ctx, struct auth_context *auth_context,
enum auth_password_state to_state,
const struct auth_usersupplied_info *user_info_in,
const struct auth_usersupplied_info **user_info_encrypted);
#include "auth/session.h"
#include "auth/system_session_proto.h"
#include "libcli/security/security.h"
struct ldb_message;
struct ldb_context;
struct gensec_security;
struct cli_credentials;
NTSTATUS auth_get_challenge(struct auth_context *auth_ctx, uint8_t chal[8]);
NTSTATUS authsam_account_ok(TALLOC_CTX *mem_ctx,
struct ldb_context *sam_ctx,
uint32_t logon_parameters,
struct ldb_dn *domain_dn,
struct ldb_message *msg,
const char *logon_workstation,
const char *name_for_logs,
bool allow_domain_trust,
bool password_change);
NTSTATUS authsam_expand_nested_groups(struct ldb_context *sam_ctx,
struct ldb_val *dn_val, const bool only_childs, const char *filter,
TALLOC_CTX *res_sids_ctx, struct dom_sid ***res_sids,
unsigned int *num_res_sids);
struct auth_session_info *system_session(struct loadparm_context *lp_ctx);
NTSTATUS authsam_make_user_info_dc(TALLOC_CTX *mem_ctx, struct ldb_context *sam_ctx,
const char *netbios_name,
const char *domain_name,
struct ldb_dn *domain_dn,
struct ldb_message *msg,
DATA_BLOB user_sess_key, DATA_BLOB lm_sess_key,
struct auth_user_info_dc **_user_info_dc);
NTSTATUS auth_system_session_info(TALLOC_CTX *parent_ctx,
struct loadparm_context *lp_ctx,
struct auth_session_info **_session_info) ;
NTSTATUS auth_context_create_methods(TALLOC_CTX *mem_ctx, const char **methods,
struct tevent_context *ev,
struct imessaging_context *msg,
struct loadparm_context *lp_ctx,
struct ldb_context *sam_ctx,
struct auth_context **auth_ctx);
const char **auth_methods_from_lp(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx);
NTSTATUS auth_context_create(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct imessaging_context *msg,
struct loadparm_context *lp_ctx,
struct auth_context **auth_ctx);
NTSTATUS auth_context_create_from_ldb(TALLOC_CTX *mem_ctx, struct ldb_context *ldb, struct auth_context **auth_ctx);
NTSTATUS auth_check_password(struct auth_context *auth_ctx,
TALLOC_CTX *mem_ctx,
const struct auth_usersupplied_info *user_info,
struct auth_user_info_dc **user_info_dc);
NTSTATUS auth4_init(void);
NTSTATUS auth_register(const struct auth_operations *ops);
NTSTATUS server_service_auth_init(void);
NTSTATUS authenticate_username_pw(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct imessaging_context *msg,
struct loadparm_context *lp_ctx,
const char *nt4_domain,
const char *nt4_username,
const char *password,
const uint32_t logon_parameters,
struct auth_session_info **session_info);
struct tevent_req *auth_check_password_send(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct auth_context *auth_ctx,
const struct auth_usersupplied_info *user_info);
NTSTATUS auth_check_password_recv(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
struct auth_user_info_dc **user_info_dc);
bool auth_challenge_may_be_modified(struct auth_context *auth_ctx);
NTSTATUS auth_context_set_challenge(struct auth_context *auth_ctx, const uint8_t chal[8], const char *set_by);
NTSTATUS auth_get_user_info_dc_principal(TALLOC_CTX *mem_ctx,
struct auth_context *auth_ctx,
const char *principal,
struct ldb_dn *user_dn,
struct auth_user_info_dc **user_info_dc);
NTSTATUS samba_server_gensec_start(TALLOC_CTX *mem_ctx,
struct tevent_context *event_ctx,
struct imessaging_context *msg_ctx,
struct loadparm_context *lp_ctx,
struct cli_credentials *server_credentials,
const char *target_service,
struct gensec_security **gensec_context);
#endif /* _SMBAUTH_H_ */
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