freebsd-dev/contrib/openbsm/man/audit_user.5

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Vendor import of OpenBSM 1.1 alpha2, which incorporates the following changes since the last imported OpenBSM release: OpenBSM 1.1 alpha 2 - Include files in OpenBSM are now broken out into two parts: library builds required solely for user space, and system includes, which may also be required for use in the kernels of systems integrating OpenBSM. Submitted by Stacey Son. - Configure option --with-native-includes allows forcing the use of native include for system includes, rather than the versions bundled with OpenBSM. This is intended specifically for platforms that ship OpenBSM, have adapted versions of the system includes in a kernel source tree, and will use the OpenBSM build infrastructure with an unmodified OpenBSM distribution, allowing the customized system includes to be used with the OpenBSM build. Submitted by Stacey Son. - Various strcpy()'s/strcat()'s have been changed to strlcpy()'s/strlcat()'s or asprintf(). Added compat/strlcpy.h for Linux. - Remove compatibility defines for old Darwin token constant names; now only BSM token names are provided and used. - Add support for extended header tokens, which contain space for information on the host generating the record. - Add support for setting extended host information in the kernel, which is used for setting host information in extended header tokens. The audit_control file now supports a "host" parameter which can be used by auditd to set the information; if not present, the kernel parameters won't be set and auditd uses unextended headers for records that it generates. OpenBSM 1.1 alpha 1 - Add option to auditreduce(1) which allows users to invert sense of matching, such that BSM records that do not match, are selected. - Fix bug in audit_write() where we commit an incomplete record in the event there is an error writing the subject token. This was submitted by Diego Giagio. - Build support for Mac OS X 10.5.1 submitted by Eric Hall. - Fix a bug which resulted in host XML attributes not beingguments so that const strings can be passed as arguments to tokens. This patch was submitted by Xin LI. - Modify the -m option so users can select more then one audit event. - For Mac OS X, added Mach IPC support for audit trigger messages. - Fixed a bug in getacna() which resulted in a locking problem on Mac OS X. - Added LOG_PERROR flag to openlog when -d option is used with auditd. - AUE events added for Mac OS X Leopard system calls. Obtained from: TrustedBSD Project Sponsored by: Apple Inc.
2008-11-13 00:04:15 +00:00
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.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
Vendor import of OpenBSM 1.1 alpha2, which incorporates the following changes since the last imported OpenBSM release: OpenBSM 1.1 alpha 2 - Include files in OpenBSM are now broken out into two parts: library builds required solely for user space, and system includes, which may also be required for use in the kernels of systems integrating OpenBSM. Submitted by Stacey Son. - Configure option --with-native-includes allows forcing the use of native include for system includes, rather than the versions bundled with OpenBSM. This is intended specifically for platforms that ship OpenBSM, have adapted versions of the system includes in a kernel source tree, and will use the OpenBSM build infrastructure with an unmodified OpenBSM distribution, allowing the customized system includes to be used with the OpenBSM build. Submitted by Stacey Son. - Various strcpy()'s/strcat()'s have been changed to strlcpy()'s/strlcat()'s or asprintf(). Added compat/strlcpy.h for Linux. - Remove compatibility defines for old Darwin token constant names; now only BSM token names are provided and used. - Add support for extended header tokens, which contain space for information on the host generating the record. - Add support for setting extended host information in the kernel, which is used for setting host information in extended header tokens. The audit_control file now supports a "host" parameter which can be used by auditd to set the information; if not present, the kernel parameters won't be set and auditd uses unextended headers for records that it generates. OpenBSM 1.1 alpha 1 - Add option to auditreduce(1) which allows users to invert sense of matching, such that BSM records that do not match, are selected. - Fix bug in audit_write() where we commit an incomplete record in the event there is an error writing the subject token. This was submitted by Diego Giagio. - Build support for Mac OS X 10.5.1 submitted by Eric Hall. - Fix a bug which resulted in host XML attributes not beingguments so that const strings can be passed as arguments to tokens. This patch was submitted by Xin LI. - Modify the -m option so users can select more then one audit event. - For Mac OS X, added Mach IPC support for audit trigger messages. - Fixed a bug in getacna() which resulted in a locking problem on Mac OS X. - Added LOG_PERROR flag to openlog when -d option is used with auditd. - AUE events added for Mac OS X Leopard system calls. Obtained from: TrustedBSD Project Sponsored by: Apple Inc.
2008-11-13 00:04:15 +00:00
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.Dd January 4, 2008
.Dt AUDIT_USER 5
.Os
.Sh NAME
.Nm audit_user
.Nd "events to be audited for given users"
.Sh DESCRIPTION
The
.Nm
file specifies which audit event classes are to be audited for the given users.
If specified, these flags are combined with the system-wide audit flags in the
.Xr audit_control 5
file to determine which classes of events to audit for that user.
These settings take effect when the user logs in.
.Pp
Each line maps a user name to a list of classes that should be audited and a
list of classes that should not be audited.
Entries are of the form:
.Pp
.D1 Ar username Ns : Ns Ar alwaysaudit Ns : Ns Ar neveraudit
.Pp
In the format above,
.Ar alwaysaudit
is a set of event classes that are always audited, and
.Ar neveraudit
is a set of event classes that should not be audited.
These sets can indicate
the inclusion or exclusion of multiple classes, and whether to audit successful
or failed events.
See
.Xr audit_control 5
for more information about audit flags.
.Pp
Example entries in this file are:
.Bd -literal -offset indent
root:lo,ad:no
jdoe:-fc,ad:+fw
.Ed
.Pp
These settings would cause login/logout and administrative events that
are performed on behalf of user
.Dq Li root
to be audited.
No failure events are audited.
For the user
.Dq Li jdoe ,
failed file creation events are audited, administrative events are
audited, and successful file write events are never audited.
.Sh IMPLEMENTATION NOTES
Per-user and global audit preselection configuration are evaluated at time of
login, so users must log out and back in again for audit changes relating to
preselection to take effect.
.Pp
Audit record preselection occurs with respect to the audit identifier
associated with a process, rather than with respect to the UNIX user or group
ID.
The audit identifier is set as part of the user credential context as part of
login, and typically does not change as a result of running setuid or setgid
applications, such as
.Xr su 1 .
This has the advantage that events that occur after running
.Xr su 1
can be audited to the original authenticated user, as required by CAPP, but
may be surprising if not expected.
.Sh FILES
.Bl -tag -width ".Pa /etc/security/audit_user" -compact
.It Pa /etc/security/audit_user
.El
.Sh SEE ALSO
.Xr login 1 ,
.Xr su 1 ,
.Xr audit 4 ,
.Xr audit_class 5 ,
.Xr audit_control 5 ,
.Xr audit_event 5
.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
.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.