49f12e36d0
from jailed process. These might get implemented in jails in the future, but for now they are not supported. Discussed on: freebsd-security@ Reviewed by: brueffer@ MFC after: 2 weeks
149 lines
4.7 KiB
Groff
149 lines
4.7 KiB
Groff
.\" Copyright (c) 2006 Robert N. M. Watson
|
|
.\" 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 THE AUTHORS 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 AUTHORS 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.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd May 31, 2009
|
|
.Dt AUDIT 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm audit
|
|
.Nd Security Event Audit
|
|
.Sh SYNOPSIS
|
|
.Cd "options AUDIT"
|
|
.Sh DESCRIPTION
|
|
Security Event Audit is a facility to provide fine-grained, configurable
|
|
logging of security-relevant events, and is intended to meet the requirements
|
|
of the Common Criteria (CC) Common Access Protection Profile (CAPP)
|
|
evaluation.
|
|
The
|
|
.Fx
|
|
.Nm
|
|
facility implements the de facto industry standard BSM API, file
|
|
formats, and command line interface, first found in the Solaris operating
|
|
system.
|
|
Information on the user space implementation can be found in
|
|
.Xr libbsm 3 .
|
|
.Pp
|
|
Audit support is enabled at boot, if present in the kernel, using an
|
|
.Xr rc.conf 5
|
|
flag.
|
|
The audit daemon,
|
|
.Xr auditd 8 ,
|
|
is responsible for configuring the kernel to perform
|
|
.Nm ,
|
|
pushing
|
|
configuration data from the various audit configuration files into the
|
|
kernel.
|
|
.Ss Audit Special Device
|
|
The kernel
|
|
.Nm
|
|
facility provides a special device,
|
|
.Pa /dev/audit ,
|
|
which is used by
|
|
.Xr auditd 8
|
|
to monitor for
|
|
.Nm
|
|
events, such as requests to cycle the log, low disk
|
|
space conditions, and requests to terminate auditing.
|
|
This device is not intended for use by applications.
|
|
.Ss Audit Pipe Special Devices
|
|
Audit pipe special devices, discussed in
|
|
.Xr auditpipe 4 ,
|
|
provide a configurable live tracking mechanism to allow applications to
|
|
tee the audit trail, as well as to configure custom preselection parameters
|
|
to track users and events in a fine-grained manner.
|
|
.Sh SEE ALSO
|
|
.Xr auditreduce 1 ,
|
|
.Xr praudit 1 ,
|
|
.Xr audit 2 ,
|
|
.Xr auditctl 2 ,
|
|
.Xr auditon 2 ,
|
|
.Xr getaudit 2 ,
|
|
.Xr getauid 2 ,
|
|
.Xr poll 2 ,
|
|
.Xr select 2 ,
|
|
.Xr setaudit 2 ,
|
|
.Xr setauid 2 ,
|
|
.Xr libbsm 3 ,
|
|
.Xr auditpipe 4 ,
|
|
.Xr audit.log 5 ,
|
|
.Xr audit_class 5 ,
|
|
.Xr audit_control 5 ,
|
|
.Xr audit_event 5 ,
|
|
.Xr audit_user 5 ,
|
|
.Xr audit_warn 5 ,
|
|
.Xr rc.conf 5 ,
|
|
.Xr audit 8 ,
|
|
.Xr auditd 8 ,
|
|
.Xr auditdistd 8
|
|
.Sh HISTORY
|
|
The
|
|
.Tn OpenBSM
|
|
implementation was created by McAfee Research, the security
|
|
division of McAfee Inc., under contract to Apple Computer Inc.\& in 2004.
|
|
It was subsequently adopted by the TrustedBSD Project as the foundation for
|
|
the OpenBSM distribution.
|
|
.Pp
|
|
Support for kernel
|
|
.Nm
|
|
first appeared in
|
|
.Fx 6.2 .
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
This software was created by McAfee Research, the security research division
|
|
of McAfee, Inc., under contract to Apple Computer Inc.
|
|
Additional authors include
|
|
.An Wayne Salamon ,
|
|
.An Robert Watson ,
|
|
and SPARTA Inc.
|
|
.Pp
|
|
The Basic Security Module (BSM) interface to audit records and audit event
|
|
stream format were defined by Sun Microsystems.
|
|
.Pp
|
|
This manual page was written by
|
|
.An Robert Watson Aq Mt rwatson@FreeBSD.org .
|
|
.Sh BUGS
|
|
The
|
|
.Fx
|
|
kernel does not fully validate that audit records submitted by user
|
|
applications are syntactically valid BSM; as submission of records is limited
|
|
to privileged processes, this is not a critical bug.
|
|
.Pp
|
|
Instrumentation of auditable events in the kernel is not complete, as some
|
|
system calls do not generate audit records, or generate audit records with
|
|
incomplete argument information.
|
|
.Pp
|
|
Mandatory Access Control (MAC) labels, as provided by the
|
|
.Xr mac 4
|
|
facility, are not audited as part of records involving MAC decisions.
|
|
.Pp
|
|
Currently the
|
|
.Nm
|
|
syscalls are not supported for jailed processes.
|
|
However, if a process has
|
|
.Nm
|
|
session state associated with it, audit records will still be produced and a zonename token
|
|
containing the jail's ID or name will be present in the audit records.
|