e52e71cb6e
contrib/openbsm (svn merge) and src/sys/{bsm,security/audit} (manual
merge). Add libauditd build parts and add to auditd's linkage;
force libbsm to build before libauditd.
OpenBSM history for imported revisions below for reference.
MFC after: 1 month
Sponsored by: Apple Inc.
Obtained from: TrustedBSD Project
OpenBSM 1.1 alpha 4
- With the addition of BSM error number mapping, we also need to map the
local error number passed to audit_submit(3) to a BSM error number,
rather than have the caller perform that conversion.
- Reallocate user audit events to avoid collisions with Solaris; adopt a
more formal allocation scheme, and add some events allocated in Solaris
that will be of immediate use on other platforms.
- Add an event for Calife.
- Add au_strerror(3), which allows generating strings for BSM errors
directly, rather than requiring applications to map to the local error
space, which might not be able to entirely represent the BSM error
number space.
- Major auditd rewrite for launchd(8) support. Add libauditd library
that is shared between launchd and auditd.
- Add AUDIT_TRIGGER_INITIALIZE trigger (sent via 'audit -i') for
(re)starting auditing under launchd(8) on Mac OS X.
- Add 'current' symlink to active audit trail.
- Add crash recovery of previous audit trail file when detected on audit
startup that it has not been properly terminated.
- Add the event AUE_audit_recovery to indicated when an audit trail file
has been recovered from not being properly terminated. This event is
stored in the new audit trail file and includes the path of recovered
audit trail file.
- Mac OS X and FreeBSD dependent code in auditd.c is separated into
auditd_darwin.c and auditd_fbsd.c files.
- Add an event for the posix_spawn(2) and fsgetpath(2) Mac OS X system
calls.
- For Mac OS X, we use ASL(3) instead of syslog(3) for logging.
- Add support for NOTICE level logging.
OpenBSM 1.1 alpha 3
- Add two new functions, au_bsm_to_errno() and au_errno_to_bsm(), to map
between BSM error numbers (largely the Solaris definitions) and local
errno(2) values for 32-bit and 64-bit return tokens. This is required
as operating systems don't agree on some of the values of more recent
error numbers.
- Fix a bug how au_to_exec_args(3) and au_to_exec_env(3) calculates the
total size for the token. This buge.
- Deprecated Darwin constants, such as TRAILER_PAD_MAGIC, removed.
679 lines
22 KiB
Groff
679 lines
22 KiB
Groff
.\"-
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.\" Copyright (c) 2005-2006 Robert N. M. Watson
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.\" Copyright (c) 2008 Apple Inc.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
|
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.\" modification, are permitted provided that the following conditions
|
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.\" are met:
|
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.\" 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
|
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE
|
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.\" 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
|
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.\" SUCH DAMAGE.
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.\"
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.\" $P4: //depot/projects/trustedbsd/openbsm/man/audit.log.5#23 $
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.\"
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.Dd November 5, 2006
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.Dt AUDIT.LOG 5
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.Os
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.Sh NAME
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|
.Nm audit
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|
.Nd "Basic Security Module (BSM) file format"
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|
.Sh DESCRIPTION
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|
The
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|
.Nm
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|
file format is based on Sun's Basic Security Module (BSM) file format, a
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|
token-based record stream to represent system audit data.
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|
This file format is both flexible and extensible, able to describe a broad
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range of data types, and easily extended to describe new data types in a
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|
moderately backward and forward compatible way.
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.Pp
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|
BSM token streams typically begin and end with a
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|
.Dq file
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|
token, which provides time stamp and file name information for the stream;
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|
when processing a BSM token stream from a stream as opposed to a single file
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|
source, file tokens may be seen at any point between ordinary records
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|
identifying when particular parts of the stream begin and end.
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|
All other tokens will appear in the context of a complete BSM audit record,
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|
which begins with a
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|
.Dq header
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|
token, and ends with a
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|
.Dq trailer
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|
token, which describe the audit record.
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|
Between these two tokens will appear a variety of data tokens, such as
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|
process information, file path names, IPC object information, MAC labels,
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|
socket information, and so on.
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|
.Pp
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|
The BSM file format defines specific token orders for each record event type;
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|
however, some variation may occur depending on the operating system in use,
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|
what system options, such as mandatory access control, are present.
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.Pp
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This manual page documents the common token types and their binary format, and
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is intended for reference purposes only.
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It is recommended that application programmers use the
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.Xr libbsm 3
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|
interface to read and write tokens, rather than parsing or constructing
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|
records by hand.
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|
.Ss File Token
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|
The
|
|
.Dq file
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|
token is used at the beginning and end of an audit log file to indicate
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|
when the audit log begins and ends.
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|
It includes a pathname so that, if concatenated together, original file
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boundaries are still observable, and gaps in the audit log can be identified.
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|
A
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|
.Dq file
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|
token can be created using
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|
.Xr au_to_file 3 .
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|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
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|
.It Sy "Field Bytes Description"
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|
.It "Token ID 1 byte Token ID"
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|
.It "Seconds 4 bytes File time stamp"
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|
.It "Microseconds 4 bytes File time stamp"
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|
.It "File name lengh 2 bytes File name of audit trail"
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|
.It "File pathname N bytes + 1 NUL File name of audit trail"
|
|
.El
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|
.Ss Header Token
|
|
The
|
|
.Dq header
|
|
token is used to mark the beginning of a complete audit record, and includes
|
|
the length of the total record in bytes, a version number for the record
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|
layout, the event type and subtype, and the time at which the event occurred.
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|
A 32-bit
|
|
.Dq header
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|
token can be created using
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.Xr au_to_header32 3 ;
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|
a 64-bit
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|
.Dq header
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|
token can be created using
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|
.Xr au_to_header64 3 .
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|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
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|
.It Sy "Field Bytes Description"
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|
.It "Token ID 1 byte Token ID"
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|
.It "Record Byte Count 4 bytes Number of bytes in record"
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|
.It "Version Number 2 bytes Record version number"
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|
.It "Event Type 2 bytes Event type"
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|
.It "Event Modifier 2 bytes Event sub-type"
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|
.It "Seconds 4/8 bytes Record time stamp (32/64-bits)"
|
|
.It "Nanoseconds 4/8 bytes Record time stamp (32/64-bits)"
|
|
.El
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|
.Ss Expanded Header Token
|
|
The
|
|
.Dq expanded header
|
|
token is an expanded version of the
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|
.Dq header
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|
token, with the addition of a machine IPv4 or IPv6 address.
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|
A 32-bit extended
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|
.Dq header
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|
token can be created using
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|
.Xr au_to_header32_ex 3 ;
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|
a 64-bit extended
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|
.Dq header
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|
token can be created using
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|
.Xr au_to_header64_ex 3 .
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.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
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|
.It Sy "Field Bytes Description"
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.It "Token ID 1 byte Token ID"
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.It "Record Byte Count 4 bytes Number of bytes in record"
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|
.It "Version Number 2 bytes Record version number"
|
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.It "Event Type 2 bytes Event type"
|
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.It "Event Modifier 2 bytes Event sub-type"
|
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.It "Address Type/Length 1 byte Host address type and length"
|
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.It "Machine Address 4/16 bytes IPv4 or IPv6 address"
|
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.It "Seconds 4/8 bytes Record time stamp (32/64-bits)"
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.It "Nanoseconds 4/8 bytes Record time stamp (32/64-bits)"
|
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.El
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|
.Ss Trailer Token
|
|
The
|
|
.Dq trailer
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|
terminates a BSM audit record, and contains a magic number,
|
|
.Dv AUT_TRAILER_MAGIC
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|
and length that can be used to validate that the record was read properly.
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A
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.Dq trailer
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|
token can be created using
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.Xr au_to_trailer 3 .
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.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
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.It Sy "Field Bytes Description"
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.It "Token ID 1 byte Token ID"
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|
.It "Trailer Magic 2 bytes Trailer magic number"
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|
.It "Record Byte Count 4 bytes Number of bytes in record"
|
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.El
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|
.Ss Arbitrary Data Token
|
|
The
|
|
.Dq arbitrary data
|
|
token contains a byte stream of opaque (untyped) data.
|
|
The size of the data is calculated as the size of each unit of data
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|
multipled by the number of units of data.
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|
A
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.Dq How to print
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|
field is present to specify how to print the data, but interpretation of
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that field is not currently defined.
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An
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.Dq arbitrary data
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token can be created using
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.Xr au_to_data 3 .
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.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
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.It Sy "Field Bytes Description"
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.It "Token ID 1 byte Token ID"
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.It "How to Print 1 byte User-defined printing information"
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.It "Basic Unit 1 byte Size of a unit in bytes"
|
|
.It "Unit Count 1 byte Number of units of data present"
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.It "Data Items Variable User data"
|
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.El
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|
.Ss in_addr Token
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|
The
|
|
.Dq in_addr
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|
token holds a network byte order IPv4 address.
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|
An
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|
.Dq in_addr
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|
token can be created using
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.Xr au_to_in_addr 3
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|
for an IPv4 address.
|
|
.Pp
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|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
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.It "IP Address 4 bytes IPv4 address"
|
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.El
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|
.Ss Expanded in_addr Token
|
|
The
|
|
.Dq in_addr_ex
|
|
token holds a network byte order IPv4 or IPv6 address.
|
|
An
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|
.Dq in_addr_ex
|
|
token can be created using
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.Xr au_to_in_addr_ex 3
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|
for an IPv6 address.
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|
.Pp
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|
See the
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|
.Sx BUGS
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|
section for information on the storage of this token.
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "IP Address Type 1 byte Type of address"
|
|
.It "IP Address 4/16 bytes IPv4 or IPv6 address"
|
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.El
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|
.Ss ip Token
|
|
The
|
|
.Dq ip
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|
token contains an IP packet header in network byte order.
|
|
An
|
|
.Dq ip
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|
token can be created using
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|
.Xr au_to_ip 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
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|
.It "Token ID 1 byte Token ID"
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|
.It "Version and IHL 1 byte Version and IP header length"
|
|
.It "Type of Service 1 byte IP TOS field"
|
|
.It "Length 2 bytes IP packet length in network byte order"
|
|
.It "ID 2 bytes IP header ID for reassembly"
|
|
.It "Offset 2 bytes IP fragment offset and flags, network byte order"
|
|
.It "TTL 1 byte IP Time-to-Live"
|
|
.It "Protocol 1 byte IP protocol number"
|
|
.It "Checksum 2 bytes IP header checksum, network byte order"
|
|
.It "Source Address 4 bytes IPv4 source address"
|
|
.It "Destination Address 4 bytes IPv4 destination address"
|
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.El
|
|
.Ss iport Token
|
|
The
|
|
.Dq iport
|
|
token stores an IP port number in network byte order.
|
|
An
|
|
.Dq iport
|
|
token can be created using
|
|
.Xr au_to_iport 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Port Number 2 bytes Port number in network byte order"
|
|
.El
|
|
.Ss Path Token
|
|
The
|
|
.Dq path
|
|
token contains a pathname.
|
|
A
|
|
.Dq path
|
|
token can be created using
|
|
.Xr au_to_path 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Path Length 2 bytes Length of path in bytes"
|
|
.It "Path N bytes + 1 NUL Path name"
|
|
.El
|
|
.Ss path_attr Token
|
|
The
|
|
.Dq path_attr
|
|
token contains a set of NUL-terminated path names.
|
|
The
|
|
.Xr libbsm 3
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|
API cannot currently create a
|
|
.Dq path_attr
|
|
token.
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Count 2 bytes Number of NUL-terminated string(s) in token"
|
|
.It "Path Variable count NUL-terminated string(s)"
|
|
.El
|
|
.Ss Process Token
|
|
The
|
|
.Dq process
|
|
token contains a description of the security properties of a process
|
|
involved as the target of an auditable event, such as the destination for
|
|
signal delivery.
|
|
It should not be confused with the
|
|
.Dq subject
|
|
token, which describes the subject performing an auditable event.
|
|
This includes both the traditional
|
|
.Ux
|
|
security properties, such as user IDs and group IDs, but also audit
|
|
information such as the audit user ID and session.
|
|
A
|
|
.Dq process
|
|
token can be created using
|
|
.Xr au_to_process32 3
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|
or
|
|
.Xr au_to_process64 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Audit ID 4 bytes Audit user ID"
|
|
.It "Effective User ID 4 bytes Effective user ID"
|
|
.It "Effective Group ID 4 bytes Effective group ID"
|
|
.It "Real User ID 4 bytes Real user ID"
|
|
.It "Real Group ID 4 bytes Real group ID"
|
|
.It "Process ID 4 bytes Process ID"
|
|
.It "Session ID 4 bytes Audit session ID"
|
|
.It "Terminal Port ID 4/8 bytes Terminal port ID (32/64-bits)"
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|
.It "Terminal Machine Address 4 bytes IP address of machine"
|
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.El
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|
.Ss Expanded Process Token
|
|
The
|
|
.Dq expanded process
|
|
token contains the contents of the
|
|
.Dq process
|
|
token, with the addition of a machine address type and variable length
|
|
address storage capable of containing IPv6 addresses.
|
|
An
|
|
.Dq expanded process
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|
token can be created using
|
|
.Xr au_to_process32_ex 3
|
|
or
|
|
.Xr au_to_process64_ex 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Audit ID 4 bytes Audit user ID"
|
|
.It "Effective User ID 4 bytes Effective user ID"
|
|
.It "Effective Group ID 4 bytes Effective group ID"
|
|
.It "Real User ID 4 bytes Real user ID"
|
|
.It "Real Group ID 4 bytes Real group ID"
|
|
.It "Process ID 4 bytes Process ID"
|
|
.It "Session ID 4 bytes Audit session ID"
|
|
.It "Terminal Port ID 4/8 bytes Terminal port ID (32/64-bits)"
|
|
.It "Terminal Address Type/Length 1 byte Length of machine address"
|
|
.It "Terminal Machine Address 4 bytes IPv4 or IPv6 address of machine"
|
|
.El
|
|
.Ss Return Token
|
|
The
|
|
.Dq return
|
|
token contains a system call or library function return condition, including
|
|
return value and error number associated with the global variable
|
|
.Er errno .
|
|
A
|
|
.Dq return
|
|
token can be created using
|
|
.Xr au_to_return32 3
|
|
or
|
|
.Xr au_to_return64 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Error Number 1 byte Errno value, or 0 if undefined"
|
|
.It "Return Value 4/8 bytes Return value (32/64-bits)"
|
|
.El
|
|
.Ss Subject Token
|
|
The
|
|
.Dq subject
|
|
token contains information on the subject performing the operation described
|
|
by an audit record, and includes similar information to that found in the
|
|
.Dq process
|
|
and
|
|
.Dq expanded process
|
|
tokens.
|
|
However, those tokens are used where the process being described is the
|
|
target of the operation, not the authorizing party.
|
|
A
|
|
.Dq subject
|
|
token can be created using
|
|
.Xr au_to_subject32 3
|
|
and
|
|
.Xr au_to_subject64 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Audit ID 4 bytes Audit user ID"
|
|
.It "Effective User ID 4 bytes Effective user ID"
|
|
.It "Effective Group ID 4 bytes Effective group ID"
|
|
.It "Real User ID 4 bytes Real user ID"
|
|
.It "Real Group ID 4 bytes Real group ID"
|
|
.It "Process ID 4 bytes Process ID"
|
|
.It "Session ID 4 bytes Audit session ID"
|
|
.It "Terminal Port ID 4/8 bytes Terminal port ID (32/64-bits)"
|
|
.It "Terminal Machine Address 4 bytes IP address of machine"
|
|
.El
|
|
.Ss Expanded Subject Token
|
|
The
|
|
.Dq expanded subject
|
|
token consists of the same elements as the
|
|
.Dq subject
|
|
token, with the addition of type/length and variable size machine address
|
|
information in the terminal ID.
|
|
An
|
|
.Dq expanded subject
|
|
token can be created using
|
|
.Xr au_to_subject32_ex 3
|
|
or
|
|
.Xr au_to_subject64_ex 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Audit ID 4 bytes Audit user ID"
|
|
.It "Effective User ID 4 bytes Effective user ID"
|
|
.It "Effective Group ID 4 bytes Effective group ID"
|
|
.It "Real User ID 4 bytes Real user ID"
|
|
.It "Real Group ID 4 bytes Real group ID"
|
|
.It "Process ID 4 bytes Process ID"
|
|
.It "Session ID 4 bytes Audit session ID"
|
|
.It "Terminal Port ID 4/8 bytes Terminal port ID (32/64-bits)"
|
|
.It "Terminal Address Type/Length 1 byte Length of machine address"
|
|
.It "Terminal Machine Address 4 bytes IPv4 or IPv6 address of machine"
|
|
.El
|
|
.Ss System V IPC Token
|
|
The
|
|
.Dq System V IPC
|
|
token contains the System V IPC message handle, semaphore handle or shared
|
|
memory handle.
|
|
A System V IPC token may be created using
|
|
+.Xr au_to_ipc 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Object ID type 1 byte Object ID"
|
|
.It "Object ID 4 bytes Object ID"
|
|
.El
|
|
.Ss Text Token
|
|
The
|
|
.Dq text
|
|
token contains a single NUL-terminated text string.
|
|
A
|
|
.Dq text
|
|
token may be created using
|
|
.Xr au_to_text 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Text Length 2 bytes Length of text string including NUL"
|
|
.It "Text N bytes + 1 NUL Text string including NUL"
|
|
.El
|
|
.Ss Attribute Token
|
|
The
|
|
.Dq attribute
|
|
token describes the attributes of a file associated with the audit event.
|
|
As files may be identified by 0, 1, or many path names, a path name is not
|
|
included with the attribute block for a file; optional
|
|
.Dq path
|
|
tokens may also be present in an audit record indicating which path, if any,
|
|
was used to reach the object.
|
|
An
|
|
.Dq attribute
|
|
token can be created using
|
|
.Xr au_to_attr32 3
|
|
or
|
|
.Xr au_to_attr64 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "File Access Mode 1 byte mode_t associated with file"
|
|
.It "Owner User ID 4 bytes uid_t associated with file"
|
|
.It "Owner Group ID 4 bytes gid_t associated with file"
|
|
.It "File System ID 4 bytes fsid_t associated with file"
|
|
.It "File System Node ID 8 bytes ino_t associated with file"
|
|
.It "Device 4/8 bytes Device major/minor number (32/64-bit)"
|
|
.El
|
|
.Ss Groups Token
|
|
The
|
|
.Dq groups
|
|
token contains a list of group IDs associated with the audit event.
|
|
A
|
|
.Dq groups
|
|
token can be created using
|
|
.Xr au_to_groups 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Number of Groups 2 bytes Number of groups in token"
|
|
.It "Group List N * 4 bytes List of N group IDs"
|
|
.El
|
|
.Ss System V IPC Permission Token
|
|
The
|
|
.Dq System V IPC permission
|
|
token contains a System V IPC access permissions.
|
|
A System V IPC permission token may be created using
|
|
.Xr au_to_ipc_perm 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It Li "Owner user ID" Ta "4 bytes" Ta "User ID of IPC owner"
|
|
.It Li "Owner group ID" Ta "4 bytes" Ta "Group ID of IPC owner"
|
|
.It Li "Creator user ID" Ta "4 bytes" Ta "User ID of IPC creator"
|
|
.It Li "Creator group ID" Ta "4 bytes" Ta "Group ID of IPC creator"
|
|
.It Li "Access mode" Ta "4 bytes" Ta "Access mode"
|
|
.It Li "Sequnce number" Ta "4 bytes" Ta "Sequnce number"
|
|
.It Li "Key" Ta "4 bytes" Ta "IPC key"
|
|
.El
|
|
.Ss Arg Token
|
|
The
|
|
.Dq arg
|
|
token contains informations about arguments of the system call.
|
|
Depending on the size of the desired argument value, an Arg token may be
|
|
created using
|
|
.Xr au_to_arg32 3
|
|
or
|
|
.Xr au_to_arg64 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It Li "Argument ID" Ta "1 byte" Ta "Argument ID"
|
|
.It Li "Argument value" Ta "4/8 bytes" Ta "Argument value"
|
|
.It Li "Length" Ta "2 bytes" Ta "Length of the text"
|
|
.It Li "Text" Ta "N bytes + 1 nul" Ta "The string including nul"
|
|
.El
|
|
.Ss exec_args Token
|
|
The
|
|
.Dq exec_args
|
|
token contains informations about arguements of the exec() system call.
|
|
An exec_args token may be created using
|
|
.Xr au_to_exec_args 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It Li "Count" Ta "4 bytes" Ta "Number of arguments"
|
|
.It Li "Text" Ta "* bytes" Ta "Count nul-terminated strings"
|
|
.El
|
|
.Ss exec_env Token
|
|
The
|
|
.Dq exec_env
|
|
token contains current eviroment variables to an exec() system call.
|
|
An exec_args token may be created using
|
|
.Xr au_to_exec_env 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It Li "Count ID" Ta "4 bytes" Ta "Number of variables"
|
|
.It Li "Text" Ta "* bytes" Ta "Count nul-terminated strings"
|
|
.El
|
|
.Ss Exit Token
|
|
The
|
|
.Dq exit
|
|
token contains process exit/return code information.
|
|
An
|
|
.Dq exit
|
|
token can be created using
|
|
.Xr au_to_exit 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Status 4 bytes Process status on exit"
|
|
.It "Return Value 4 bytes Process return value on exit"
|
|
.El
|
|
.Ss Socket Token
|
|
The
|
|
.Dq socket
|
|
token contains information about UNIX domain and Internet sockets.
|
|
Each token has four or eight fields.
|
|
Depending on the type of socket, a socket token may be created using
|
|
.Xr au_to_sock_unix 3 ,
|
|
.Xr au_to_sock_inet32 3
|
|
or
|
|
.Xr au_to_sock_inet128 3 .
|
|
.Bl -column -offset 3n ".Sy Field Name Width XX" ".Sy XX Bytes XXXX" ".Sy Description"
|
|
.It Sy "Field" Ta Sy Bytes Ta Sy Description
|
|
.It Li "Token ID" Ta "1 byte" Ta "Token ID"
|
|
.It Li "Socket family" Ta "2 bytes" Ta "Socket family"
|
|
.It Li "Local port" Ta "2 bytes" Ta "Local port"
|
|
.It Li "Socket address" Ta "4 bytes" Ta "Socket address"
|
|
.El
|
|
.Ss Expanded Socket Token
|
|
The
|
|
.Dq expanded socket
|
|
token contains information about IPv4 and IPv6 sockets.
|
|
A
|
|
.Dq expanded socket
|
|
token can be created using
|
|
.Xr au_to_socket_ex 3 .
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It Li "Token ID" Ta "1 byte" Ta "Token ID"
|
|
.It Li "Socket domain" Ta "2 bytes" Ta "Socket domain"
|
|
.It Li "Socket type" Ta "2 bytes" Ta "Socket type"
|
|
.It Li "Address type" Ta "2 byte" Ta "Address type (IPv4/IPv6)"
|
|
.It Li "Local port" Ta "2 bytes" Ta "Local port"
|
|
.It Li "Local IP address" Ta "4/16 bytes" Ta "Local IP address"
|
|
.It Li "Remote port" Ta "2 bytes" Ta "Remote port"
|
|
.It Li "Remote IP address" Ta "4/16 bytes" Ta "Remote IP address"
|
|
.El
|
|
.Ss Seq Token
|
|
The
|
|
.Dq seq
|
|
token contains a unique and monotonically increasing audit event sequence ID.
|
|
Due to the limited range of 32 bits, serial number arithmetic and caution
|
|
should be used when comparing sequence numbers.
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Sequence Number 4 bytes Audit event sequence number"
|
|
.El
|
|
.Ss privilege Token
|
|
The
|
|
.Dq privilege
|
|
token ...
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It XXXXX
|
|
.El
|
|
.Ss Use-of-auth Token
|
|
The
|
|
.Dq use-of-auth
|
|
token ...
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It XXXXX
|
|
.El
|
|
.Ss Command Token
|
|
The
|
|
.Dq command
|
|
token ...
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It XXXXX
|
|
.El
|
|
.Ss ACL Token
|
|
The
|
|
.Dq ACL
|
|
token ...
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It XXXXX
|
|
.El
|
|
.Ss Zonename Token
|
|
The
|
|
.Dq zonename
|
|
token holds a NUL-terminated string with the name of the zone or jail from
|
|
which the record originated.
|
|
A
|
|
.Dz zonename
|
|
token can be created using
|
|
.Xr au_to_zonename 3 .
|
|
.Pp
|
|
.Bl -column -offset 3n ".No Terminal Address Type/Length" ".No N bytes + 1 NUL"
|
|
.It Sy "Field Bytes Description"
|
|
.It "Token ID 1 byte Token ID"
|
|
.It "Zonename length 2 bytes Length of zonename string including NUL"
|
|
.It "Zonename N bytes + 1 NUL Zonename string including NUL"
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr auditreduce 1 ,
|
|
.Xr praudit 1 ,
|
|
.Xr libbsm 3 ,
|
|
.Xr audit 4 ,
|
|
.Xr auditpipe 4 ,
|
|
.Xr audit 8
|
|
.Sh HISTORY
|
|
The 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.
|
|
.Sh AUTHORS
|
|
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 rwatson@FreeBSD.org .
|
|
.Sh BUGS
|
|
The
|
|
.Dq How to print
|
|
field in the
|
|
.Dq arbitrary data
|
|
token has undefined values.
|
|
.Pp
|
|
The
|
|
.Dq in_addr
|
|
and
|
|
.Dq in_addr_ex
|
|
token layout documented here appears to be in conflict with the
|
|
.Xr libbsm 3
|
|
implementation of
|
|
.Xr au_to_in_addr_ex 3 .
|