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152 lines
4.2 KiB
Groff
152 lines
4.2 KiB
Groff
.\"
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.\" Copyright (c) 2006 Christian S.J. Peron
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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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.\"
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" 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 APPLE AND ITS CONTRIBUTORS "AS IS" AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
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.\" ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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.\" IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd January 18, 2008
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.Dt AUDIT_SUBMIT 3
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.Os
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.Sh NAME
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.Nm audit_submit
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.Nd "general purpose audit record submission"
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.Sh LIBRARY
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.Lb libbsm
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.Sh SYNOPSIS
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.In bsm/libbsm.h
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.Ft int
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.Fo audit_submit
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.Fa "short au_event" "au_id_t auid" "char status"
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.Fa "int reterr" "const char * restrict format" ...
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.Fc
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.Sh DESCRIPTION
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The
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.Fn audit_submit
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function provides a generic programming interface for audit record submission.
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This audit record will contain a header, subject token, an optional text token,
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return token, and a trailer.
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The header will contain the event class specified by
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.Fa au_event .
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The subject token will be generated based on
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.Fa auid .
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The return token is dependent on the
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.Fa status
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and
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.Fa reterr
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arguments; unlike the argument to
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.Xr au_to_return ,
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.Fa reterr
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should be a local rather than BSM error number.
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Optionally, a text token will be created as a part of this record.
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.Pp
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Text token output is under the control of a
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.Fa format
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string that specifies how subsequent arguments (or arguments accessed via the
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variable-length argument facilities of
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.Xr stdarg 3 )
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are converted for output.
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If
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.Fa format
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is
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.Dv NULL ,
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then no text token is created in the audit record.
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.Pp
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It should be noted that
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.Fn audit_submit
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assumes that
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.Xr setaudit 2 ,
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or
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.Xr setaudit_addr 2
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has already been called.
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As a direct result, the terminal ID for the
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subject will be retrieved from the kernel via
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.Xr getaudit 2 ,
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or
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.Xr getaudit_addr 2 .
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.Sh RETURN VALUES
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If successful,
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.Nm
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will return zero.
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Otherwise a -1 is returned and the global variable
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.Va errno
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is set to indicate the error.
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.Sh EXAMPLES
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.Bd -literal -offset indent
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#include <bsm/audit.h>
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#include <bsm/libbsm.h>
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#include <bsm/audit_uevents.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <errno.h>
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void
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audit_bad_su(char *from_login, char *to_login)
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{
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struct auditinfo_addr aia;
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struct auditinfo ai;
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au_id_t aid;
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int error;
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error = getaudit_addr(&aia, sizeof(aia));
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if (error < 0 && errno == ENOSYS) {
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error = getaudit(&ai);
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if (error < 0)
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err(1, "getaudit");
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aid = ai.ai_auid;
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} else if (error < 0)
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err(1, "getaudit_addr");
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else
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aid = aia.ai_auid;
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error = audit_submit(AUE_su, aid, EPERM, 1,
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"bad su from %s to %s", from_login, to_login);
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if (error != 0)
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err(1, "audit_submit");
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}
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.Ed
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.Pp
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Will generate the following audit record:
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.Bd -literal -offset indent
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header,94,1,su(1),0,Mon Apr 17 23:23:59 2006, + 271 msec
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subject,root,root,wheel,root,wheel,652,652,0,0.0.0.0
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text,bad su from from csjp to root
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return,failure : Operation not permitted,1
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trailer,94
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.Ed
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.Sh SEE ALSO
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.Xr auditon 2 ,
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.Xr getaudit 2 ,
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.Xr libbsm 3 ,
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.Xr stdarg 3
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.Sh HISTORY
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The
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.Fn audit_submit
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function first appeared in OpenBSM version 1.0.
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OpenBSM 1.0 was introduced in
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.Fx 7.0 .
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.Sh AUTHORS
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The
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.Fn audit_submit
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function was written by
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.An Christian S.J. Peron Aq csjp@FreeBSD.org .
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