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freebsd-nq/contrib/openbsm/bsm/audit.h
Robert Watson 506764c6f6 Vendor branch import of TrustedBSD OpenBSM 1.0 alpha 6: 
- Use AU_TO_WRITE and AU_NO_TO_WRITE for the 'keep' argument to au_close();
  previously we used hard-coded 0 and 1 values.
- Add man page for au_open(), au_write(), au_close(), and
  au_close_buffer().
- Support a more complete range of data types for the arbitrary data token:
  add AUR_CHAR (alias to AUR_BYTE), remove AUR_LONG, add AUR_INT32 (alias
  to AUR_INT), add AUR_INT64.
- Add au_close_token(), which allows writing a single token_t to a memory
  buffer.  Not likely to be used much by applications, but useful for
  writing test tools.
- Modify au_to_file() so that it accepts a timeval in user space, not just
  kernel -- this is not a Solaris BSM API so can be modified without
  causing compatibility issues.
- Define a new API, au_to_header32_tm(), which adds a struct timeval
  argument to the ordinary au_to_header32(), which is now implemented by
  wrapping au_to_header32_tm() and calling gettimeofday().  #ifndef KERNEL
  the APIs that invoke gettimeofday(), rather than having a variable
  definition.  Don't try to retrieve time zone information using
  gettimeofday(), as it's not needed, and introduces possible failure
  modes.
- Don't perform byte order transformations on the addr/machine fields of
  the terminal ID that appears in the process32/subject32 tokens.  These
  are assumed to be IP addresses, and as such, to be in network byte
  order.
- Universally, APIs now assume that IP addresses and ports are provided
  in network byte order.  APIs now generally provide these types in
  network byte order when decoding.
- Beginnings of an OpenBSM test framework can now be found in openbsm/test.
  This code is not built or installed by default.
- auditd now assigns more appropriate syslog levels to its debugging and
  error information.
- Support for audit filters introduced: audit filters are dynamically
  loaded shared objects that run in the context of a new daemon,
  auditfilterd.  The daemon reads from an audit pipe and feeds both BSM and
  parsed versions of records to shared objects using a module API.  This
  will provide a framework for the writing of intrusion detection services.
- New utility API, audit_submit(), added to capture common elements of audit
  record submission for many applications.

Obtained from:	TrustedBSD Project
2006-06-05 10:52:12 +00:00

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/*
* Copyright (c) 2005 Apple Computer, Inc.
* All rights reserved.
*
* @APPLE_BSD_LICENSE_HEADER_START@
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 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
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS CONTRIBUTORS BE LIABLE 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 SUCH DAMAGE.
*
* @APPLE_BSD_LICENSE_HEADER_END@
*
* $P4: //depot/projects/trustedbsd/openbsm/bsm/audit.h#16 $
*/
#ifndef _BSM_AUDIT_H
#define _BSM_AUDIT_H
#define AUDIT_RECORD_MAGIC 0x828a0f1b
#define MAX_AUDIT_RECORDS 20
#define MAX_AUDIT_RECORD_SIZE 4096
#define MIN_AUDIT_FILE_SIZE (512 * 1024)
/*
* Triggers for the audit daemon
*/
#define AUDIT_TRIGGER_MIN 1
#define AUDIT_TRIGGER_LOW_SPACE 1
#define AUDIT_TRIGGER_OPEN_NEW 2
#define AUDIT_TRIGGER_READ_FILE 3
#define AUDIT_TRIGGER_CLOSE_AND_DIE 4
#define AUDIT_TRIGGER_NO_SPACE 5
#define AUDIT_TRIGGER_MAX 5
/*
* File that will be read for trigger events from the kernel
*/
#define AUDIT_TRIGGER_FILE "/dev/audit"
/*
* Pre-defined audit IDs
*/
#define AU_DEFAUDITID -1
/*
* Define the masks for the classes of audit events.
*/
#define AU_NULL 0x00000000
#define AU_FREAD 0x00000001
#define AU_FWRITE 0x00000002
#define AU_FACCESS 0x00000004
#define AU_FMODIFY 0x00000008
#define AU_FCREATE 0x00000010
#define AU_FDELETE 0x00000020
#define AU_CLOSE 0x00000040
#define AU_PROCESS 0x00000080
#define AU_NET 0x00000100
#define AU_IPC 0x00000200
#define AU_NONAT 0x00000400
#define AU_ADMIN 0x00000800
#define AU_LOGIN 0x00001000
#define AU_TFM 0x00002000
#define AU_APPL 0x00004000
#define AU_SETL 0x00008000
#define AU_IFLOAT 0x00010000
#define AU_PRIV 0x00020000
#define AU_MAC_RW 0x00040000
#define AU_XCONN 0x00080000
#define AU_XCREATE 0x00100000
#define AU_XDELETE 0x00200000
#define AU_XIFLOAT 0x00400000
#define AU_XPRIVS 0x00800000
#define AU_XPRIVF 0x01000000
#define AU_XMOVE 0x02000000
#define AU_XDACF 0x04000000
#define AU_XMACF 0x08000000
#define AU_XSECATTR 0x10000000
#define AU_IOCTL 0x20000000
#define AU_EXEC 0x40000000
#define AU_OTHER 0x80000000
#define AU_ALL 0xffffffff
/*
* IPC types
*/
#define AT_IPC_MSG ((u_char)1) /* Message IPC id. */
#define AT_IPC_SEM ((u_char)2) /* Semaphore IPC id. */
#define AT_IPC_SHM ((u_char)3) /* Shared mem IPC id. */
/*
* Audit conditions.
*/
#define AUC_UNSET 0
#define AUC_AUDITING 1
#define AUC_NOAUDIT 2
#define AUC_DISABLED -1
/*
* auditon(2) commands.
*/
#define A_GETPOLICY 2
#define A_SETPOLICY 3
#define A_GETKMASK 4
#define A_SETKMASK 5
#define A_GETQCTRL 6
#define A_SETQCTRL 7
#define A_GETCWD 8
#define A_GETCAR 9
#define A_GETSTAT 12
#define A_SETSTAT 13
#define A_SETUMASK 14
#define A_SETSMASK 15
#define A_GETCOND 20
#define A_SETCOND 21
#define A_GETCLASS 22
#define A_SETCLASS 23
#define A_GETPINFO 24
#define A_SETPMASK 25
#define A_SETFSIZE 26
#define A_GETFSIZE 27
#define A_GETPINFO_ADDR 28
#define A_GETKAUDIT 29
#define A_SETKAUDIT 30
#define A_SENDTRIGGER 31
/*
* Audit policy controls.
*/
#define AUDIT_CNT 0x0001
#define AUDIT_AHLT 0x0002
#define AUDIT_ARGV 0x0004
#define AUDIT_ARGE 0x0008
#define AUDIT_PASSWD 0x0010
#define AUDIT_SEQ 0x0020
#define AUDIT_WINDATA 0x0040
#define AUDIT_USER 0x0080
#define AUDIT_GROUP 0x0100
#define AUDIT_TRAIL 0x0200
#define AUDIT_PATH 0x0400
/*
* Audit queue control parameters
*/
#define AQ_HIWATER 100
#define AQ_MAXHIGH 10000
#define AQ_LOWATER 10
#define AQ_BUFSZ 1024
#define AQ_MAXBUFSZ 1048576
/*
* Default minimum percentage free space on file system.
*/
#define AU_FS_MINFREE 20
/*
* Type definitions used indicating the length of variable length addresses
* in tokens containing addresses, such as header fields.
*/
#define AU_IPv4 4
#define AU_IPv6 16
__BEGIN_DECLS
typedef uid_t au_id_t;
typedef pid_t au_asid_t;
typedef u_int16_t au_event_t;
typedef u_int16_t au_emod_t;
typedef u_int32_t au_class_t;
struct au_tid {
dev_t port;
u_int32_t machine;
};
typedef struct au_tid au_tid_t;
struct au_tid_addr {
dev_t at_port;
u_int32_t at_type;
u_int32_t at_addr[4];
};
typedef struct au_tid_addr au_tid_addr_t;
struct au_mask {
unsigned int am_success; /* Success bits. */
unsigned int am_failure; /* Failure bits. */
};
typedef struct au_mask au_mask_t;
struct auditinfo {
au_id_t ai_auid; /* Audit user ID. */
au_mask_t ai_mask; /* Audit masks. */
au_tid_t ai_termid; /* Terminal ID. */
au_asid_t ai_asid; /* Audit session ID. */
};
typedef struct auditinfo auditinfo_t;
struct auditinfo_addr {
au_id_t ai_auid; /* Audit user ID. */
au_mask_t ai_mask; /* Audit masks. */
au_tid_addr_t ai_termid; /* Terminal ID. */
au_asid_t ai_asid; /* Audit session ID. */
};
typedef struct auditinfo_addr auditinfo_addr_t;
struct auditpinfo {
pid_t ap_pid; /* ID of target process. */
au_id_t ap_auid; /* Audit user ID. */
au_mask_t ap_mask; /* Audit masks. */
au_tid_t ap_termid; /* Terminal ID. */
au_asid_t ap_asid; /* Audit session ID. */
};
typedef struct auditpinfo auditpinfo_t;
struct auditpinfo_addr {
pid_t ap_pid; /* ID of target process. */
au_id_t ap_auid; /* Audit user ID. */
au_mask_t ap_mask; /* Audit masks. */
au_tid_addr_t ap_termid; /* Terminal ID. */
au_asid_t ap_asid; /* Audit session ID. */
};
typedef struct auditpinfo_addr auditpinfo_addr_t;
/*
* Contents of token_t are opaque outside of libbsm.
*/
typedef struct au_token token_t;
/*
* Kernel audit queue control parameters.
*/
struct au_qctrl {
size_t aq_hiwater;
size_t aq_lowater;
size_t aq_bufsz;
clock_t aq_delay;
int aq_minfree; /* Minimum filesystem percent free space. */
};
typedef struct au_qctrl au_qctrl_t;
/*
* Structure for the audit statistics.
*/
struct audit_stat {
unsigned int as_version;
unsigned int as_numevent;
int as_generated;
int as_nonattrib;
int as_kernel;
int as_audit;
int as_auditctl;
int as_enqueue;
int as_written;
int as_wblocked;
int as_rblocked;
int as_dropped;
int as_totalsize;
unsigned int as_memused;
};
typedef struct audit_stat au_stat_t;
/*
* Structure for the audit file statistics.
*/
struct audit_fstat {
u_quad_t af_filesz;
u_quad_t af_currsz;
};
typedef struct audit_fstat au_fstat_t;
/*
* Audit to event class mapping.
*/
struct au_evclass_map {
au_event_t ec_number;
au_class_t ec_class;
};
typedef struct au_evclass_map au_evclass_map_t;
/*
* Audit system calls.
*/
#if !defined(_KERNEL) && !defined(KERNEL)
int audit(const void *, int);
int auditon(int, void *, int);
int auditctl(const char *);
int getauid(au_id_t *);
int setauid(const au_id_t *);
int getaudit(struct auditinfo *);
int setaudit(const struct auditinfo *);
int getaudit_addr(struct auditinfo_addr *, int);
int setaudit_addr(const struct auditinfo_addr *, int);
#endif /* defined(_KERNEL) || defined(KERNEL) */
__END_DECLS
#endif /* !_BSM_AUDIT_H */
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