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a5081e077b
couple of FreeBSD-specific modifications that may be merged out later). These include files define the basic audit data structures, types, and definitions use by the kernel, or shared by the kernel and user space. Obtained from: TrustedBSD Project, Apple Computer, Inc.
346 lines
8.7 KiB
C
346 lines
8.7 KiB
C
/*
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* Copyright (c) 2005 Apple Computer, Inc.
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* All rights reserved.
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*
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* @APPLE_BSD_LICENSE_HEADER_START@
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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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* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @APPLE_BSD_LICENSE_HEADER_END@
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*
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* $P4: //depot/projects/trustedbsd/audit3/sys/bsm/audit.h#22 $
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* $FreeBSD$
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*/
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#ifndef _BSM_AUDIT_H
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#define _BSM_AUDIT_H
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#include <sys/param.h>
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#include <sys/cdefs.h>
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#include <sys/queue.h>
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#define AUDIT_RECORD_MAGIC 0x828a0f1b
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#define MAX_AUDIT_RECORDS 20
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#define MAX_AUDIT_RECORD_SIZE 4096
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#define MIN_AUDIT_FILE_SIZE (512 * 1024)
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/*
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* Minimum noumber of free blocks on the filesystem containing the audit
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* log necessary to avoid a hard log rotation. DO NOT SET THIS VALUE TO 0
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* as the kernel does an unsigned compare, plus we want to leave a few blocks
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* free so userspace can terminate the log, etc.
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*/
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#define AUDIT_HARD_LIMIT_FREE_BLOCKS 4
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/*
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* Triggers for the audit daemon
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*/
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#define AUDIT_TRIGGER_MIN 1
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#define AUDIT_TRIGGER_LOW_SPACE 1
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#define AUDIT_TRIGGER_OPEN_NEW 2
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#define AUDIT_TRIGGER_READ_FILE 3
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#define AUDIT_TRIGGER_CLOSE_AND_DIE 4
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#define AUDIT_TRIGGER_NO_SPACE 5
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#define AUDIT_TRIGGER_MAX 5
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/*
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* File that will be read for trigger events from the kernel.
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*/
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#define AUDIT_TRIGGER_FILE "/dev/audit"
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/*
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* The special device filename.
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*/
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#define AUDITDEV_FILENAME "audit"
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/*
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* Pre-defined audit IDs
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*/
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#define AU_DEFAUDITID -1
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/*
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* Define the masks for the classes of audit events.
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*/
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#define AU_NULL 0x00000000
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#define AU_FREAD 0x00000001
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#define AU_FWRITE 0x00000002
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#define AU_FACCESS 0x00000004
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#define AU_FMODIFY 0x00000008
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#define AU_FCREATE 0x00000010
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#define AU_FDELETE 0x00000020
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#define AU_CLOSE 0x00000040
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#define AU_PROCESS 0x00000080
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#define AU_NET 0x00000100
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#define AU_IPC 0x00000200
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#define AU_NONAT 0x00000400
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#define AU_ADMIN 0x00000800
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#define AU_LOGIN 0x00001000
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#define AU_TFM 0x00002000
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#define AU_APPL 0x00004000
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#define AU_SETL 0x00008000
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#define AU_IFLOAT 0x00010000
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#define AU_PRIV 0x00020000
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#define AU_MAC_RW 0x00040000
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#define AU_XCONN 0x00080000
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#define AU_XCREATE 0x00100000
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#define AU_XDELETE 0x00200000
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#define AU_XIFLOAT 0x00400000
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#define AU_XPRIVS 0x00800000
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#define AU_XPRIVF 0x01000000
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#define AU_XMOVE 0x02000000
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#define AU_XDACF 0x04000000
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#define AU_XMACF 0x08000000
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#define AU_XSECATTR 0x10000000
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#define AU_IOCTL 0x20000000
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#define AU_EXEC 0x40000000
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#define AU_OTHER 0x80000000
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#define AU_ALL 0xffffffff
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/*
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* IPC types
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*/
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#define AT_IPC_MSG ((u_char)1) /* Message IPC id. */
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#define AT_IPC_SEM ((u_char)2) /* Semaphore IPC id. */
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#define AT_IPC_SHM ((u_char)3) /* Shared mem IPC id. */
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/*
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* Audit conditions.
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*/
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#define AUC_UNSET 0
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#define AUC_AUDITING 1
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#define AUC_NOAUDIT 2
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#define AUC_DISABLED -1
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/*
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* auditon(2) commands.
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*/
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#define A_GETPOLICY 2
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#define A_SETPOLICY 3
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#define A_GETKMASK 4
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#define A_SETKMASK 5
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#define A_GETQCTRL 6
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#define A_SETQCTRL 7
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#define A_GETCWD 8
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#define A_GETCAR 9
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#define A_GETSTAT 12
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#define A_SETSTAT 13
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#define A_SETUMASK 14
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#define A_SETSMASK 15
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#define A_GETCOND 20
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#define A_SETCOND 21
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#define A_GETCLASS 22
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#define A_SETCLASS 23
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#define A_GETPINFO 24
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#define A_SETPMASK 25
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#define A_SETFSIZE 26
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#define A_GETFSIZE 27
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#define A_GETPINFO_ADDR 28
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#define A_GETKAUDIT 29
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#define A_SETKAUDIT 30
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#define A_SENDTRIGGER 31
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/*
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* Audit policy controls.
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*/
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#define AUDIT_CNT 0x0001
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#define AUDIT_AHLT 0x0002
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#define AUDIT_ARGV 0x0004
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#define AUDIT_ARGE 0x0008
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#define AUDIT_PASSWD 0x0010
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#define AUDIT_SEQ 0x0020
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#define AUDIT_WINDATA 0x0040
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#define AUDIT_USER 0x0080
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#define AUDIT_GROUP 0x0100
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#define AUDIT_TRAIL 0x0200
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#define AUDIT_PATH 0x0400
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/*
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* Audit queue control parameters
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*/
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#define AQ_HIWATER 100
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#define AQ_MAXHIGH 10000
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#define AQ_LOWATER 10
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#define AQ_BUFSZ 1024
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#define AQ_MAXBUFSZ 1048576
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/*
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* Default minimum percentage free space on file system.
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*/
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#define AU_FS_MINFREE 20
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/*
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* Type definitions used indicating the length of variable length addresses
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* in tokens containing addresses, such as header fields.
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*/
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#define AU_IPv4 4
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#define AU_IPv6 16
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__BEGIN_DECLS
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typedef uid_t au_id_t;
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typedef pid_t au_asid_t;
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typedef u_int16_t au_event_t;
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typedef u_int16_t au_emod_t;
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typedef u_int32_t au_class_t;
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struct au_tid {
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dev_t port;
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u_int32_t machine;
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};
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typedef struct au_tid au_tid_t;
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struct au_tid_addr {
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dev_t at_port;
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u_int32_t at_type;
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u_int32_t at_addr[4];
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};
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typedef struct au_tid_addr au_tid_addr_t;
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struct au_mask {
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unsigned int am_success; /* Success bits. */
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unsigned int am_failure; /* Failure bits. */
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};
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typedef struct au_mask au_mask_t;
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struct auditinfo {
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au_id_t ai_auid; /* Audit user ID. */
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au_mask_t ai_mask; /* Audit masks. */
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au_tid_t ai_termid; /* Terminal ID. */
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au_asid_t ai_asid; /* Audit session ID. */
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};
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typedef struct auditinfo auditinfo_t;
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struct auditinfo_addr {
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au_id_t ai_auid; /* Audit user ID. */
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au_mask_t ai_mask; /* Audit masks. */
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au_tid_addr_t ai_termid; /* Terminal ID. */
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au_asid_t ai_asid; /* Audit session ID. */
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};
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typedef struct auditinfo_addr auditinfo_addr_t;
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struct auditpinfo {
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pid_t ap_pid; /* ID of target process. */
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au_id_t ap_auid; /* Audit user ID. */
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au_mask_t ap_mask; /* Audit masks. */
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au_tid_t ap_termid; /* Terminal ID. */
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au_asid_t ap_asid; /* Audit session ID. */
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};
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typedef struct auditpinfo auditpinfo_t;
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struct auditpinfo_addr {
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pid_t ap_pid; /* ID of target process. */
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au_id_t ap_auid; /* Audit user ID. */
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au_mask_t ap_mask; /* Audit masks. */
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au_tid_addr_t ap_termid; /* Terminal ID. */
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au_asid_t ap_asid; /* Audit session ID. */
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};
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typedef struct auditpinfo_addr auditpinfo_addr_t;
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/* Token and record structures. */
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struct au_token {
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u_char *t_data;
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size_t len;
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TAILQ_ENTRY(au_token) tokens;
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};
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typedef struct au_token token_t;
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struct au_record {
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char used; /* Record currently in use? */
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int desc; /* Descriptor for record. */
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TAILQ_HEAD(, au_token) token_q; /* Queue of BSM tokens. */
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u_char *data;
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size_t len;
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LIST_ENTRY(au_record) au_rec_q;
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};
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typedef struct au_record au_record_t;
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/*
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* Kernel audit queue control parameters.
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*/
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struct au_qctrl {
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size_t aq_hiwater;
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size_t aq_lowater;
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size_t aq_bufsz;
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clock_t aq_delay;
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int aq_minfree; /* Minimum filesystem percent free space. */
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};
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typedef struct au_qctrl au_qctrl_t;
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/*
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* Structure for the audit statistics.
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*/
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struct audit_stat {
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unsigned int as_version;
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unsigned int as_numevent;
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int as_generated;
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int as_nonattring;
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int as_kernel;
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int as_audit;
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int as_auditctl;
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int as_enqueu;
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int as_written;
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int as_wblocked;
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int as_rblocked;
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int as_dropped;
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int as_totalsize;
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unsigned int as_memused;
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};
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typedef struct audit_stat au_stat_t;
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/*
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* Structure for the audit file statistics.
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*/
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struct audit_fstat {
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u_quad_t af_filesz;
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u_quad_t af_currsz;
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};
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typedef struct audit_fstat au_fstat_t;
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/*
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* Audit to event class mapping.
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*/
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struct au_evclass_map {
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au_event_t ec_number;
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au_class_t ec_class;
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};
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typedef struct au_evclass_map au_evclass_map_t;
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#if !defined(_KERNEL) && !defined(KERNEL)
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int audit(const void *, int);
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int auditon(int, void *, int);
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int auditctl(const char *);
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int getauid(au_id_t *);
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int setauid(const au_id_t *);
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int getaudit(struct auditinfo *);
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int setaudit(const struct auditinfo *);
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int getaudit_addr(struct auditinfo_addr *, int);
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int setaudit_addr(const struct auditinfo_addr *, int);
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#endif /* defined(_KERNEL) || defined(KERNEL) */
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__END_DECLS
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#endif /* !_BSM_AUDIT_H */
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