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/*
Unix SMB/CIFS implementation.
Standardised Authentication types
Copyright (C) Andrew Bartlett 2001-2010
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 AUTH_COMMON_AUTH_H
#define AUTH_COMMON_AUTH_H
#include "librpc/gen_ndr/auth.h"
#define USER_INFO_CASE_INSENSITIVE_USERNAME 0x01 /* username may be in any case */
#define USER_INFO_CASE_INSENSITIVE_PASSWORD 0x02 /* password may be in any case */
#define USER_INFO_DONT_CHECK_UNIX_ACCOUNT 0x04 /* don't check unix account status */
#define USER_INFO_INTERACTIVE_LOGON 0x08 /* Interactive logon */
/*unused #define USER_INFO_LOCAL_SAM_ONLY 0x10 Only authenticate against the local SAM, do not map missing passwords to NO_SUCH_USER */
#define USER_INFO_INFO3_AND_NO_AUTHZ 0x20 /* Only fill in server_info->info3 and do not do any authorization steps */
enum auth_password_state {
AUTH_PASSWORD_PLAIN = 1,
AUTH_PASSWORD_HASH = 2,
AUTH_PASSWORD_RESPONSE = 3
};
#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 */
#define AUTH_SESSION_INFO_UNIX_TOKEN 0x08 /* The returned token must have the unix_token and unix_info elements provided */
#define AUTH_SESSION_INFO_NTLM 0x10 /* The returned token must have authenticated-with-NTLM flag set */
struct auth_usersupplied_info
{
const char *workstation_name;
const struct tsocket_address *remote_host;
const struct tsocket_address *local_host;
uint32_t logon_parameters;
bool mapped_state;
bool was_mapped;
uint64_t logon_id;
/* the values the client gives us */
struct {
const char *account_name;
const char *domain_name;
} client, mapped;
enum auth_password_state password_state;
struct {
struct {
DATA_BLOB lanman;
DATA_BLOB nt;
} response;
struct {
struct samr_Password *lanman;
struct samr_Password *nt;
} hash;
char *plaintext;
} password;
uint32_t flags;
struct {
uint32_t negotiate_flags;
enum netr_SchannelType secure_channel_type;
const char *computer_name; /* [charset(UTF8)] */
const char *account_name; /* [charset(UTF8)] */
struct dom_sid *sid; /* [unique] */
} netlogon_trust_account;
const char *service_description;
const char *auth_description;
/*
* for logging only, normally worked out from the password but
* for krb5 logging only (krb5 normally doesn't use this) we
* record the enc type here
*/
const char *password_type;
};
struct auth_method_context;
struct tevent_context;
struct imessaging_context;
struct loadparm_context;
struct ldb_context;
struct smb_krb5_context;
struct auth4_context {
struct {
/* Who set this up in the first place? */
const char *set_by;
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;
/* The time this authentication started */
struct timeval start_time;
/* Private data for the callbacks on this auth context */
void *private_data;
struct tevent_req *(*check_ntlm_password_send)(TALLOC_CTX *mem_ctx,
struct tevent_context *ev,
struct auth4_context *auth_ctx,
const struct auth_usersupplied_info *user_info);
NTSTATUS (*check_ntlm_password_recv)(struct tevent_req *req,
TALLOC_CTX *mem_ctx,
uint8_t *pauthoritative,
void **server_returned_info,
DATA_BLOB *nt_session_key,
DATA_BLOB *lm_session_key);
NTSTATUS (*get_ntlm_challenge)(struct auth4_context *auth_ctx, uint8_t chal[8]);
NTSTATUS (*set_ntlm_challenge)(struct auth4_context *auth_ctx, const uint8_t chal[8], const char *set_by);
NTSTATUS (*generate_session_info)(struct auth4_context *auth_context,
TALLOC_CTX *mem_ctx,
void *server_returned_info,
const char *original_user_name,
uint32_t session_info_flags,
struct auth_session_info **session_info);
NTSTATUS (*generate_session_info_pac)(struct auth4_context *auth_ctx,
TALLOC_CTX *mem_ctx,
struct smb_krb5_context *smb_krb5_context,
DATA_BLOB *pac_blob,
const char *principal_name,
const struct tsocket_address *remote_address,
uint32_t session_info_flags,
struct auth_session_info **session_info);
};
#define AUTHZ_TRANSPORT_PROTECTION_NONE "NONE"
#define AUTHZ_TRANSPORT_PROTECTION_SMB "SMB"
#define AUTHZ_TRANSPORT_PROTECTION_TLS "TLS"
#define AUTHZ_TRANSPORT_PROTECTION_SEAL "SEAL"
#define AUTHZ_TRANSPORT_PROTECTION_SIGN "SIGN"
/*
* Log details of an authentication attempt.
* Successful and unsuccessful attempts are logged.
*
* NOTE: msg_ctx and lp_ctx is optional, but when supplied allows streaming the
* authentication events over the message bus.
*/
void log_authentication_event(struct imessaging_context *msg_ctx,
struct loadparm_context *lp_ctx,
const struct timeval *start_time,
const struct auth_usersupplied_info *ui,
NTSTATUS status,
const char *account_name,
const char *domain_name,
struct dom_sid *sid);
/*
* Log details of a successful authorization to a service.
*
* Only successful authorizations are logged. For clarity:
* - NTLM bad passwords will be recorded by log_authentication_event
* - Kerberos decrypt failures need to be logged in gensec_gssapi et al
*
* The service may later refuse authorization due to an ACL.
*
*
* NOTE: msg_ctx and lp_ctx is optional, but when supplied allows streaming the
* authorization events over the message bus.
*/
void log_successful_authz_event(struct imessaging_context *msg_ctx,
struct loadparm_context *lp_ctx,
const struct tsocket_address *remote,
const struct tsocket_address *local,
const char *service_description,
const char *auth_type,
const char *transport_protection,
struct auth_session_info *session_info);
#endif
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