/*
   Unix SMB/CIFS implementation.

   Samba KDB plugin for MIT Kerberos

   Copyright (c) 2009      Simo Sorce <idra@samba.org>.

   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 _KDB_SAMBA_H_
#define _KDB_SAMBA_H_

#include <stdbool.h>

#include <krb5/krb5.h>
#include <krb5/plugin.h>

#define PAC_LOGON_INFO 1

#ifndef discard_const_p
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
# define discard_const_p(type, ptr) ((type *)((intptr_t)(ptr)))
#else
# define discard_const_p(type, ptr) ((type *)(ptr))
#endif
#endif

/* from kdb_samba_common.c */

struct mit_samba_context *ks_get_context(krb5_context kcontext);

krb5_error_code ks_get_principal(krb5_context context,
				 krb5_const_principal principal,
				 unsigned int kflags,
				 krb5_db_entry **kentry);

void ks_free_principal(krb5_context context, krb5_db_entry *entry);

bool ks_data_eq_string(krb5_data d, const char *s);

krb5_boolean ks_is_kadmin(krb5_context context,
			  krb5_const_principal princ);

krb5_boolean ks_is_kadmin_history(krb5_context context,
				  krb5_const_principal princ);

krb5_boolean ks_is_kadmin_changepw(krb5_context context,
				   krb5_const_principal princ);

krb5_boolean ks_is_kadmin_admin(krb5_context context,
				krb5_const_principal princ);

/* from kdb_samba_principals.c */

krb5_error_code kdb_samba_db_get_principal(krb5_context context,
					   krb5_const_principal princ,
					   unsigned int kflags,
					   krb5_db_entry **kentry);

krb5_error_code kdb_samba_db_put_principal(krb5_context context,
					   krb5_db_entry *entry,
					   char **db_args);

krb5_error_code kdb_samba_db_delete_principal(krb5_context context,
					      krb5_const_principal princ);

krb5_error_code kdb_samba_db_iterate(krb5_context context,
				     char *match_entry,
				     int (*func)(krb5_pointer, krb5_db_entry *),
				     krb5_pointer func_arg,
				     krb5_flags iterflags);

/* from kdb_samba_masterkey.c */

krb5_error_code kdb_samba_fetch_master_key(krb5_context context,
					   krb5_principal name,
					   krb5_keyblock *key,
					   krb5_kvno *kvno,
					   char *db_args);

krb5_error_code kdb_samba_fetch_master_key_list(krb5_context context,
						krb5_principal mname,
						const krb5_keyblock *key,
						krb5_keylist_node **mkeys_list);

/* from kdb_samba_pac.c */

krb5_error_code kdb_samba_dbekd_decrypt_key_data(krb5_context context,
						 const krb5_keyblock *mkey,
						 const krb5_key_data *key_data,
						 krb5_keyblock *kkey,
						 krb5_keysalt *keysalt);

krb5_error_code kdb_samba_dbekd_encrypt_key_data(krb5_context context,
						 const krb5_keyblock *mkey,
						 const krb5_keyblock *kkey,
						 const krb5_keysalt *keysalt,
						 int keyver,
						 krb5_key_data *key_data);

/* from kdb_samba_policies.c */
krb5_error_code kdb_samba_db_issue_pac(krb5_context context,
				       unsigned int flags,
				       krb5_db_entry *client,
				       krb5_keyblock *replaced_reply_key,
				       krb5_db_entry *server,
				       krb5_db_entry *signing_krbtgt,
				       krb5_timestamp authtime,
				       krb5_pac old_pac,
				       krb5_pac new_pac,
				       krb5_data ***auth_indicators);

krb5_error_code kdb_samba_db_sign_auth_data(krb5_context context,
					    unsigned int flags,
					    krb5_const_principal client_princ,
					    krb5_const_principal server_princ,
					    krb5_db_entry *client,
					    krb5_db_entry *server,
					    krb5_db_entry *krbtgt,
					    krb5_db_entry *local_krbtgt,
					    krb5_keyblock *client_key,
					    krb5_keyblock *server_key,
					    krb5_keyblock *krbtgt_key,
					    krb5_keyblock *local_krbtgt_key,
					    krb5_keyblock *session_key,
					    krb5_timestamp authtime,
					    krb5_authdata **tgt_auth_data,
					    void *authdata_info,
					    krb5_data ***auth_indicators,
					    krb5_authdata ***signed_auth_data);

krb5_error_code kdb_samba_db_check_policy_as(krb5_context context,
					     krb5_kdc_req *kdcreq,
					     krb5_db_entry *client,
					     krb5_db_entry *server,
					     krb5_timestamp kdc_time,
					     const char **status,
					     krb5_pa_data ***e_data_out);

krb5_error_code kdb_samba_db_check_allowed_to_delegate(krb5_context context,
						       krb5_const_principal client,
						       const krb5_db_entry *server,
						       krb5_const_principal proxy);

krb5_error_code kdb_samba_db_allowed_to_delegate_from(
		krb5_context context,
		krb5_const_principal client,
		krb5_const_principal server,
		krb5_pac header_pac,
		const krb5_db_entry *proxy);

void kdb_samba_db_audit_as_req(krb5_context kcontext,
			       krb5_kdc_req *request,
			       const krb5_address *local_addr,
			       const krb5_address *remote_addr,
			       krb5_db_entry *client,
			       krb5_db_entry *server,
			       krb5_timestamp authtime,
			       krb5_error_code error_code);

/* from kdb_samba_change_pwd.c */

krb5_error_code kdb_samba_change_pwd(krb5_context context,
				     krb5_keyblock *master_key,
				     krb5_key_salt_tuple *ks_tuple,
				     int ks_tuple_count, char *passwd,
				     int new_kvno, krb5_boolean keepold,
				     krb5_db_entry *db_entry);

#endif /* _KDB_SAMBA_H_ */