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/*
   Unix SMB/CIFS implementation.

   PAC Glue between Samba and the KDC

   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2009
   Copyright (C) Simo Sorce <idra@samba.org> 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/>.
*/

krb5_error_code samba_make_krb5_pac(krb5_context context,
				    DATA_BLOB *pac_blob,
				    DATA_BLOB *deleg_blob,
				    krb5_pac *pac);

bool samba_princ_needs_pac(struct hdb_entry_ex *princ);

int samba_krbtgt_is_in_db(struct hdb_entry_ex *princ, bool *is_in_db, bool *is_untrusted);

NTSTATUS samba_kdc_get_pac_blob(TALLOC_CTX *mem_ctx,
				struct hdb_entry_ex *client,
				DATA_BLOB **_pac_blob);

NTSTATUS samba_kdc_update_pac_blob(TALLOC_CTX *mem_ctx,
				   krb5_context context,
				   const krb5_pac pac, DATA_BLOB *pac_blob,
				   struct PAC_SIGNATURE_DATA *pac_srv_sig,
				   struct PAC_SIGNATURE_DATA *pac_kdc_sig);

NTSTATUS samba_kdc_update_delegation_info_blob(TALLOC_CTX *mem_ctx,
				krb5_context context,
				const krb5_pac pac,
				const krb5_principal server_principal,
				const krb5_principal proxy_principal,
				DATA_BLOB *pac_blob);

void samba_kdc_build_edata_reply(NTSTATUS nt_status, DATA_BLOB *e_data);

krb5_error_code samba_kdc_map_policy_err(NTSTATUS nt_status);

NTSTATUS samba_kdc_check_client_access(struct samba_kdc_entry *kdc_entry,
				       const char *client_name,
				       const char *workstation,
				       bool password_change);
int kdc_check_pac(krb5_context krb5_context,
		  DATA_BLOB server_sig,
		  struct PAC_SIGNATURE_DATA *kdc_sig,
		  hdb_entry_ex *ent);