FreeBSD/Linux Kernel Cross Reference
sys/bsm/audit.h

     /*
      * 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/audit3/sys/bsm/audit.h#34 $
     * $FreeBSD: releng/6.2/sys/bsm/audit.h 162821 2006-09-29 22:43:30Z rwatson $
     */
    
    #ifndef _BSM_AUDIT_H
    #define _BSM_AUDIT_H
    
    #include <sys/param.h>
    #include <sys/cdefs.h>
    #include <sys/queue.h>
    
    #define AUDIT_RECORD_MAGIC      0x828a0f1b
    #define MAX_AUDIT_RECORDS       20
    #define MAXAUDITDATA            (0x8000 - 1)
    #define MAX_AUDIT_RECORD_SIZE   MAXAUDITDATA
    #define MIN_AUDIT_FILE_SIZE     (512 * 1024)
    
    /*
     * Minimum noumber of free blocks on the filesystem containing the audit
     * log necessary to avoid a hard log rotation. DO NOT SET THIS VALUE TO 0
     * as the kernel does an unsigned compare, plus we want to leave a few blocks
     * free so userspace can terminate the log, etc.
     */
    #define AUDIT_HARD_LIMIT_FREE_BLOCKS    4
    
    /*
     * Triggers for the audit daemon.
     */
    #define AUDIT_TRIGGER_MIN               1
    #define AUDIT_TRIGGER_LOW_SPACE         1       /* Below low watermark. */
    #define AUDIT_TRIGGER_ROTATE_KERNEL     2       /* Kernel requests rotate. */
    #define AUDIT_TRIGGER_READ_FILE         3       /* Re-read config file. */
    #define AUDIT_TRIGGER_CLOSE_AND_DIE     4       /* Terminate audit. */
    #define AUDIT_TRIGGER_NO_SPACE          5       /* Below min free space. */
    #define AUDIT_TRIGGER_ROTATE_USER       6       /* User requests roate. */
    #define AUDIT_TRIGGER_MAX               6
    
    /*
     * The special device filename (FreeBSD).
     */
    #define AUDITDEV_FILENAME       "audit"
    #define AUDIT_TRIGGER_FILE      ("/dev/" AUDITDEV_FILENAME)
    
    /*
     * 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_SEQ       0x0010
   #define AUDIT_WINDATA   0x0020
   #define AUDIT_USER      0x0040
   #define AUDIT_GROUP     0x0080
   #define AUDIT_TRAIL     0x0100
   #define AUDIT_PATH      0x0200
   #define AUDIT_SCNT      0x0400
   #define AUDIT_PUBLIC    0x0800
   #define AUDIT_ZONENAME  0x1000
   #define AUDIT_PERZONE   0x2000
   
   /*
    * Default audit queue control parameters.
    */
   #define AQ_HIWATER      100
   #define AQ_MAXHIGH      10000
   #define AQ_LOWATER      10
   #define AQ_BUFSZ        MAXAUDITDATA
   #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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