shadow/libmisc/audit_help.c

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/*
* Audit helper functions used throughout shadow
*
* Copyright (C) 2005, Red Hat, Inc.
*
* 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 Julianne F. Haugh 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 JULIE HAUGH 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 JULIE HAUGH 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.
*/
#include <config.h>
#ifdef WITH_AUDIT
#include <stdlib.h>
#include <syslog.h>
#include <stdarg.h>
#include <libaudit.h>
#include <errno.h>
#include <stdio.h>
int audit_fd;
void audit_help_open (void)
{
audit_fd = audit_open ();
if (audit_fd < 0) {
/* You get these only when the kernel doesn't have
* audit compiled in. */
if (errno == EINVAL || errno == EPROTONOSUPPORT ||
errno == EAFNOSUPPORT)
return;
fprintf (stderr, "Cannot open audit interface - aborting.\n");
exit (1);
}
}
/*
* This function will log a message to the audit system using a predefined
* message format. Parameter usage is as follows:
*
* type - type of message: AUDIT_USER_CHAUTHTOK for changing any account
* attributes.
* pgname - program's name
* op - operation. "adding user", "changing finger info", "deleting group"
* name - user's account or group name. If not available use NULL.
* id - uid or gid that the operation is being performed on. This is used
* only when user is NULL.
* result - 1 is "success" and 0 is "failed"
*/
void audit_logger (int type, const char *pgname, const char *op,
const char *name, unsigned int id, int result)
{
if (audit_fd < 0)
return;
else
audit_log_acct_message (audit_fd, type, NULL, op, name, id,
NULL, NULL, NULL, result);
}
#endif /* WITH_AUDIT */