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/*
* Copyright (c) 2006 Kungliga Tekniska Högskolan
* (Royal Institute of Technology, Stockholm, Sweden).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $Id$ */
#ifndef HEIMDAL_KDC_KDC_PLUGIN_H
#define HEIMDAL_KDC_KDC_PLUGIN_H 1
#include <krb5.h>
#include <kdc.h>
#include <kdc-accessors.h>
#include <hdb.h>
/*
* Allocate a PAC for the given client with krb5_pac_init(),
* and fill its contents in with krb5_pac_add_buffer().
*/
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_kdc_pac_generate)(void *,
astgs_request_t,
hdb_entry *, /* client */
hdb_entry *, /* server */
const krb5_keyblock *, /* pk_replykey */
uint64_t, /* pac_attributes */
krb5_pac *);
/*
* Verify the PAC KDC signatures by fetching the appropriate TGS key
* and calling krb5_pac_verify() with that key.
*/
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_kdc_pac_verify)(void *,
astgs_request_t,
krb5_const_principal, /* new ticket client */
hdb_entry *, /* delegation proxy */
hdb_entry *,/* client */
hdb_entry *,/* server */
hdb_entry *,/* krbtgt */
EncTicketPart *, /* ticket */
krb5_pac); /* pac */
/*
* Update the KDC PAC buffers. This function may be used after verifying the PAC
* with a call to krb5plugin_kdc_pac_verify(), and it resembles the latter
* function in the parameters it takes. The 'pac' parameter always points to a
* non-NULL PAC.
*/
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_kdc_pac_update)(void *,
astgs_request_t,
krb5_const_principal, /* new ticket client */
hdb_entry *, /* delegation proxy */
krb5_const_pac, /* delegation proxy pac */
hdb_entry *,/* client */
hdb_entry *,/* server */
hdb_entry *,/* krbtgt */
krb5_pac *); /* pac */
/*
* Authorize the client principal's access to the Authentication Service (AS).
* This function is called after any pre-authentication has completed.
*/
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_kdc_client_access)(void *, astgs_request_t);
/*
* A referral policy plugin can either rewrite the server principal
* by resetting priv->server_princ, or it can disable referral
* processing entirely by returning an error.
*
* The error code from the previous server lookup is available as r->ret.
*
* If the function returns KRB5_PLUGIN_NO_HANDLE, the TGS will continue
* with its default referral handling.
*
* Note well: the plugin should free priv->server_princ is replacing.
*/
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_kdc_referral_policy)(void *, astgs_request_t);
/*
* Update the AS or TGS reply immediately prior to encoding.
*/
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_kdc_finalize_reply)(void *, astgs_request_t);
/*
* Audit an AS or TGS request. This function is called after encoding the
* reply (on success), or before encoding the error message. If a HDB audit
* function is also present, it is called after this one.
*
* The request should not be modified by the plugin.
*/
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_kdc_audit)(void *, astgs_request_t);
/*
* Plugins should carefully check API contract notes for changes
* between plugin API versions.
*/
#define KRB5_PLUGIN_KDC_VERSION_11 11
typedef struct krb5plugin_kdc_ftable {
HEIM_PLUGIN_FTABLE_COMMON_ELEMENTS(krb5_context);
krb5plugin_kdc_pac_generate pac_generate;
krb5plugin_kdc_pac_verify pac_verify;
krb5plugin_kdc_pac_update pac_update;
krb5plugin_kdc_client_access client_access;
krb5plugin_kdc_referral_policy referral_policy;
krb5plugin_kdc_finalize_reply finalize_reply;
krb5plugin_kdc_audit audit;
} krb5plugin_kdc_ftable;
#endif /* HEIMDAL_KDC_KDC_PLUGIN_H */
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