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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/>.
*/
#include "system/kerberos.h"
#include "auth/kerberos/kerberos.h"
#include <krb5/krb5.h>
#include "lib/util/data_blob.h"
#include "lib/util/time.h"
#include "libcli/util/ntstatus.h"
#include "libcli/util/werror.h"
#include "librpc/gen_ndr/auth.h"
#include "kdc/samba_kdc.h"
enum samba_asserted_identity {
SAMBA_ASSERTED_IDENTITY_IGNORE = 0,
SAMBA_ASSERTED_IDENTITY_SERVICE,
SAMBA_ASSERTED_IDENTITY_AUTHENTICATION_AUTHORITY,
};
enum samba_claims_valid {
SAMBA_CLAIMS_VALID_EXCLUDE = 0,
SAMBA_CLAIMS_VALID_INCLUDE,
};
enum samba_compounded_auth {
SAMBA_COMPOUNDED_AUTH_EXCLUDE = 0,
SAMBA_COMPOUNDED_AUTH_INCLUDE,
};
enum {
SAMBA_KDC_FLAG_PROTOCOL_TRANSITION = 0x00000001,
SAMBA_KDC_FLAG_CONSTRAINED_DELEGATION = 0x00000002,
SAMBA_KDC_FLAG_KRBTGT_IN_DB = 0x00000004,
SAMBA_KDC_FLAG_KRBTGT_IS_TRUSTED = 0x00000008,
SAMBA_KDC_FLAG_SKIP_PAC_BUFFER = 0x00000010,
SAMBA_KDC_FLAG_DEVICE_KRBTGT_IS_TRUSTED = 0x00000020,
};
krb5_error_code samba_kdc_encrypt_pac_credentials(krb5_context context,
const krb5_keyblock *pkreplykey,
const DATA_BLOB *cred_ndr_blob,
TALLOC_CTX *mem_ctx,
DATA_BLOB *cred_info_blob);
krb5_error_code samba_make_krb5_pac(krb5_context context,
const DATA_BLOB *logon_blob,
const DATA_BLOB *cred_blob,
const DATA_BLOB *upn_blob,
const DATA_BLOB *pac_attrs_blob,
const DATA_BLOB *requester_sid_blob,
const DATA_BLOB *deleg_blob,
const DATA_BLOB *client_claims_blob,
const DATA_BLOB *device_info_blob,
const DATA_BLOB *device_claims_blob,
krb5_pac pac);
bool samba_princ_needs_pac(const struct samba_kdc_entry *skdc_entry);
int samba_client_requested_pac(krb5_context context,
krb5_const_pac pac,
TALLOC_CTX *mem_ctx,
bool *requested_pac);
int samba_krbtgt_is_in_db(struct samba_kdc_entry *skdc_entry,
bool *is_in_db,
bool *is_trusted);
NTSTATUS samba_kdc_get_user_info_from_db(struct samba_kdc_entry *skdc_entry,
const struct ldb_message *msg,
const struct auth_user_info_dc **user_info_dc);
NTSTATUS samba_kdc_update_pac_blob(TALLOC_CTX *mem_ctx,
krb5_context context,
struct ldb_context *samdb,
enum auth_group_inclusion group_inclusion,
enum samba_compounded_auth compounded_auth,
const krb5_const_pac pac, DATA_BLOB *pac_blob,
struct PAC_SIGNATURE_DATA *pac_srv_sig,
struct PAC_SIGNATURE_DATA *pac_kdc_sig);
NTSTATUS samba_kdc_get_user_info_dc(TALLOC_CTX *mem_ctx,
struct samba_kdc_entry *skdc_entry,
enum samba_asserted_identity asserted_identity,
enum samba_claims_valid claims_valid,
enum samba_compounded_auth compounded_auth,
struct auth_user_info_dc **user_info_dc_out);
NTSTATUS samba_kdc_update_delegation_info_blob(TALLOC_CTX *mem_ctx,
krb5_context context,
krb5_const_pac pac,
krb5_principal server_principal,
krb5_principal proxy_principal,
DATA_BLOB *pac_blob);
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);
krb5_error_code samba_kdc_validate_pac_blob(
krb5_context context,
const struct samba_kdc_entry *client_skdc_entry,
krb5_const_pac pac);
/*
* In the RODC case, to confirm that the returned user is permitted to
* be replicated to the KDC (krbgtgt_xxx user) represented by *rodc
*/
struct dom_sid;
WERROR samba_rodc_confirm_user_is_allowed(uint32_t num_sids,
const struct dom_sid *object_sids,
const struct samba_kdc_entry *rodc,
const struct samba_kdc_entry *object);
krb5_error_code samba_kdc_verify_pac(TALLOC_CTX *mem_ctx,
krb5_context context,
uint32_t flags,
struct samba_kdc_entry *client,
const struct samba_kdc_entry *krbtgt,
const struct samba_kdc_entry *device,
const krb5_const_pac *device_pac,
krb5_const_pac pac);
krb5_error_code samba_kdc_update_pac(TALLOC_CTX *mem_ctx,
krb5_context context,
struct ldb_context *samdb,
uint32_t flags,
struct samba_kdc_entry *client,
krb5_principal server_principal,
const struct samba_kdc_entry *server,
krb5_principal delegated_proxy_principal,
struct samba_kdc_entry *device,
krb5_const_pac device_pac,
krb5_const_pac old_pac,
krb5_pac new_pac);
NTSTATUS samba_kdc_get_logon_info_blob(TALLOC_CTX *mem_ctx,
const struct auth_user_info_dc *user_info_dc,
enum auth_group_inclusion group_inclusion,
DATA_BLOB **_logon_info_blob);
NTSTATUS samba_kdc_get_cred_ndr_blob(TALLOC_CTX *mem_ctx,
const struct samba_kdc_entry *p,
DATA_BLOB **_cred_ndr_blob);
NTSTATUS samba_kdc_get_upn_info_blob(TALLOC_CTX *mem_ctx,
const struct auth_user_info_dc *user_info_dc,
DATA_BLOB **_upn_info_blob);
NTSTATUS samba_kdc_get_pac_attrs_blob(TALLOC_CTX *mem_ctx,
uint64_t pac_attributes,
DATA_BLOB **_pac_attrs_blob);
NTSTATUS samba_kdc_get_requester_sid_blob(TALLOC_CTX *mem_ctx,
const struct auth_user_info_dc *user_info_dc,
DATA_BLOB **_requester_sid_blob);
NTSTATUS samba_kdc_get_claims_blob(TALLOC_CTX *mem_ctx,
const struct samba_kdc_entry *p,
DATA_BLOB **_claims_blob);
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