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.\"
.\" Copyright (c) 2006 Christian S.J. Peron
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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.
.\"
.\" $P4: //depot/projects/trustedbsd/openbsm/libbsm/audit_submit.3#19 $
.\"
.Dd January 18, 2008
.Dt AUDIT_SUBMIT 3
.Os
.Sh NAME
.Nm audit_submit
.Nd "general purpose audit record submission"
.Sh LIBRARY
.Lb libbsm
.Sh SYNOPSIS
.In bsm/libbsm.h
.Ft int
.Fo audit_submit
.Fa "short au_event" "au_id_t auid" "char status"
.Fa "int reterr" "const char * restrict format" ...
.Fc
.Sh DESCRIPTION
The
.Fn audit_submit
function provides a generic programming interface for audit record submission.
This audit record will contain a header, subject token, an optional text token,
return token, and a trailer.
The header will contain the event class specified by
.Fa au_event .
The subject token will be generated based on
.Fa auid .
The return token is dependent on the
.Fa status
and
.Fa reterr
arguments; unlike the argument to
.Xr au_to_return ,
.Fa reterr
should be a local rather than BSM error number.
Optionally, a text token will be created as a part of this record.
.Pp
Text token output is under the control of a
.Fa format
string that specifies how subsequent arguments (or arguments accessed via the
variable-length argument facilities of
.Xr stdarg 3 )
are converted for output.
If
.Fa format
is
.Dv NULL ,
then no text token is created in the audit record.
.Pp
It should be noted that
.Fn audit_submit
assumes that
.Xr setaudit 2 ,
or
.Xr setaudit_addr 2
has already been called.
As a direct result, the terminal ID for the
subject will be retrieved from the kernel via
.Xr getaudit 2 ,
or
.Xr getaudit_addr 2 .
.Sh RETURN VALUES
If successful,
.Nm
will return zero.
Otherwise a -1 is returned and the global variable
.Va errno
is set to indicate the error.
.Sh EXAMPLES
.Bd -literal -offset indent
#include <bsm/audit.h>
#include <bsm/libbsm.h>
#include <bsm/audit_uevents.h>
#include <stdio.h>
#include <stdarg.h>
#include <errno.h>
void
audit_bad_su(char *from_login, char *to_login)
{
struct auditinfo_addr aia;
struct auditinfo ai;
au_id_t aid;
int error;
error = getaudit_addr(&aia, sizeof(aia));
if (error < 0 && errno == ENOSYS) {
error = getaudit(&ai);
if (error < 0)
err(1, "getaudit");
aid = ai.ai_auid;
} else if (error < 0)
err(1, "getaudit_addr");
else
aid = aia.ai_auid;
error = audit_submit(AUE_su, aid, EPERM, 1,
"bad su from %s to %s", from_login, to_login);
if (error != 0)
err(1, "audit_submit");
}
.Ed
.Pp
Will generate the following audit record:
.Bd -literal -offset indent
header,94,1,su(1),0,Mon Apr 17 23:23:59 2006, + 271 msec
subject,root,root,wheel,root,wheel,652,652,0,0.0.0.0
text,bad su from from csjp to root
return,failure : Operation not permitted,1
trailer,94
.Ed
.Sh SEE ALSO
.Xr auditon 2 ,
.Xr getaudit 2 ,
.Xr libbsm 3 ,
.Xr stdarg 3
.Sh HISTORY
The
.Fn audit_submit
function first appeared in OpenBSM version 1.0.
OpenBSM 1.0 was introduced in
.Fx 7.0 .
.Sh AUTHORS
The
.Fn audit_submit
function was written by
.An Christian S.J. Peron Aq csjp@FreeBSD.org .
|
