Files
heimdal/lib/krb5/send_to_kdc_plugin.h
Joseph Sutton cfb32a638e Introduce macro for common plugin structure elements
Heimdal's HDB plugin interface, and hence Samba's KDC that depends upon
it, doesn't work on 32-bit builds due to structure fields being arranged
in the wrong order. This problem presents itself in the form of
segmentation faults on 32-bit systems, but goes unnoticed on 64-bit
builds thanks to extra structure padding absorbing the errant fields.

This commit reorders the HDB plugin structure fields to prevent crashes
and introduces a common macro to ensure every plugin presents a
consistent interface.

Samba BUG: https://bugzilla.samba.org/show_bug.cgi?id=15110

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
2022-11-17 17:15:21 -06:00

71 lines
2.6 KiB
C

/*
* Copyright (c) 2008 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_KRB5_SEND_TO_KDC_PLUGIN_H
#define HEIMDAL_KRB5_SEND_TO_KDC_PLUGIN_H 1
#include <krb5.h>
#include <heimbase-svc.h>
#define KRB5_PLUGIN_SEND_TO_KDC "send_to_kdc"
#define KRB5_PLUGIN_SEND_TO_KDC_VERSION_0 0
#define KRB5_PLUGIN_SEND_TO_KDC_VERSION_2 2
#define KRB5_PLUGIN_SEND_TO_KDC_VERSION KRB5_PLUGIN_SEND_TO_KDC_VERSION_2
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_send_to_kdc_func)(krb5_context,
void *,
krb5_krbhst_info *,
time_t timeout,
const krb5_data *,
krb5_data *);
typedef krb5_error_code
(KRB5_CALLCONV *krb5plugin_send_to_realm_func)(krb5_context,
void *,
krb5_const_realm,
time_t timeout,
const krb5_data *,
krb5_data *);
typedef struct krb5plugin_send_to_kdc_ftable {
HEIM_PLUGIN_FTABLE_COMMON_ELEMENTS(krb5_context);
krb5plugin_send_to_kdc_func send_to_kdc;
krb5plugin_send_to_realm_func send_to_realm; /* added in version 2 */
} krb5plugin_send_to_kdc_ftable;
#endif /* HEIMDAL_KRB5_SEND_TO_KDC_PLUGIN_H */