auditon.2freebsd

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Version: 266093 (debian - 07/07/09)

Section: 2 (Appels système)

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NAME

auditon - configure system audit parameters

SYNOPSIS

In bsm/audit.h Ft int Fn auditon int cmd void *data u_int length

DESCRIPTION

The Fn auditon system call is used to manipulate various audit control operations. The Fa data argument should point to a structure whose type depends on the command. The Fa length argument specifies the size of Fa *data in bytes. The Fa cmd argument may be any of the following:
A_SETPOLICY
Set audit policy flags. The Fa data argument must point to a Vt long value set to one of the audit policy control values defined in In bsm/audit.h . Currently, only AUDIT_CNT and AUDIT_AHLT are implemented. In the AUDIT_CNT case, the action will continue regardless if an event will not be audited. In the AUDIT_AHLT case, a panic(9) will result if an event will not be written to the audit log file.
A_SETKAUDIT
Return Er ENOSYS .
A_SETKMASK
Set the kernel preselection masks (success and failure). The Fa data argument must point to a Vt au_mask_t structure containing the mask values. These masks are used for non-attributable audit event preselection.
A_SETQCTRL
Set kernel audit queue parameters. The Fa data argument must point to a Vt au_qctrl_t structure containing the kernel audit queue control settings: ``high water'' ``low water'' ``output buffer size'' ``percent min free disk space'' and ``delay'' (not currently used).
A_SETSTAT
Return Er ENOSYS .
A_SETUMASK
Return Er ENOSYS .
A_SETSMASK
Return Er ENOSYS .
A_SETCOND
Set the current auditing condition. The Fa data argument must point to a Vt long value containing the new audit condition, one of AUC_AUDITING AUC_NOAUDIT or AUC_DISABLED
A_SETCLASS
Set the event class preselection mask for an audit event. The Fa data argument must point to a Vt au_evclass_map_t structure containing the audit event and mask.
A_SETPMASK
Set the preselection masks for a process. The Fa data argument must point to a Vt auditpinfo_t structure that contains the given process's audit preselection masks for both success and failure.
A_SETFSIZE
Set the maximum size of the audit log file. The Fa data argument must point to a Vt au_fstat_t structure with the af_filesz field set to the maximum audit log file size. A value of 0 indicates no limit to the size.
A_SETKAUDIT
Return Er ENOSYS .
A_GETCLASS
Return the event to class mapping for the designated audit event. The Fa data argument must point to a Vt au_evclass_map_t structure.
A_GETKAUDIT
Return Er ENOSYS .
A_GETPINFO
Return the audit settings for a process. The Fa data argument must point to a Vt auditpinfo_t structure which will be set to contain the audit ID, preselection mask, terminal ID, and audit session ID of the given process.
A_GETPINFO_ADDR
Return Er ENOSYS .
A_GETKMASK
Return the current kernel preselection masks. The Fa data argument must point to a Vt au_mask_t structure which will be set to the current kernel preselection masks for non-attributable events.
A_GETPOLICY
Return the current audit policy setting. The Fa data argument must point to a Vt long value which will be set to one of the current audit policy flags. Currently, only AUDIT_CNT and AUDIT_AHLT are implemented.
A_GETQCTRL
Return the current kernel audit queue control parameters. The Fa data argument must point to a Vt au_qctrl_t structure which will be set to the current kernel audit queue control parameters.
A_GETFSIZE
Returns the maximum size of the audit log file. The Fa data argument must point to a Vt au_fstat_t structure. The af_filesz field will be set to the maximum audit log file size. A value of 0 indicates no limit to the size. The af_currsz field will be set to the current audit log file size.
A_GETCWD
Return Er ENOSYS .
A_GETCAR
Return Er ENOSYS .
A_GETSTAT
Return Er ENOSYS .
A_GETCOND
Return the current auditing condition. The Fa data argument must point to a Vt long value which will be set to the current audit condition, either AUC_AUDITING or AUC_NOAUDIT
A_SENDTRIGGER
Send a trigger to the audit daemon. The Fa data argument must point to a Vt long value set to one of the acceptable trigger values: AUDIT_TRIGGER_LOW_SPACE (low disk space where the audit log resides), AUDIT_TRIGGER_OPEN_NEW (open a new audit log file), AUDIT_TRIGGER_READ_FILE (read the audit_control file), AUDIT_TRIGGER_CLOSE_AND_DIE (close the current log file and exit), or AUDIT_TRIGGER_NO_SPACE (no disk space left for audit log file).

RETURN VALUES

Rv -std

ERRORS

The Fn auditon function will fail if:
Bq Er ENOSYS
Returned by options not yet implemented.
Bq Er EFAULT
A failure occurred while data transferred to or from the kernel failed.
Bq Er EINVAL
Illegal argument was passed by a system call.
Bq Er EPERM
The process does not have sufficient permission to complete the operation.

The A_SENDTRIGGER command is specific to the Fx and Mac OS X implementations, and is not present in Solaris.

SEE ALSO

audit(2), auditctl(2), getaudit(2), getaudit_addr2, getauid(2), setaudit(2), setaudit_addr2, setauid(2), libbsm(3)

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.

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.

The Basic Security Module (BSM) interface to audit records and audit event stream format were defined by Sun Microsystems.

This manual page was written by An Tom Rhodes Aq trhodes@FreeBSD.org , An Robert Watson Aq rwatson@FreeBSD.org , and An Wayne Salamon Aq wsalamon@FreeBSD.org .