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Annotation of Net2/sys/ktrace.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 The Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)ktrace.h    7.4 (Berkeley) 5/7/91
        !            34:  */
        !            35: 
        !            36: /*
        !            37:  * operations to ktrace system call  (KTROP(op))
        !            38:  */
        !            39: #define KTROP_SET              0       /* set trace points */
        !            40: #define KTROP_CLEAR            1       /* clear trace points */
        !            41: #define KTROP_CLEARFILE                2       /* stop all tracing to file */
        !            42: #define        KTROP(o)                ((o)&3) /* macro to extract operation */
        !            43: /*
        !            44:  * flags (ORed in with operation)
        !            45:  */
        !            46: #define KTRFLAG_DESCEND                4       /* perform op on all children too */
        !            47: 
        !            48: /*
        !            49:  * ktrace record header
        !            50:  */
        !            51: struct ktr_header {
        !            52:        int     ktr_len;                /* length of buf */
        !            53:        short   ktr_type;               /* trace record type */
        !            54:        pid_t   ktr_pid;                /* process id */
        !            55:        char    ktr_comm[MAXCOMLEN+1];  /* command name */
        !            56:        struct  timeval ktr_time;       /* timestamp */
        !            57:        caddr_t ktr_buf;
        !            58: };
        !            59: 
        !            60: /*
        !            61:  * Test for kernel trace point
        !            62:  */
        !            63: #define KTRPOINT(p, type)      ((p)->p_traceflag & (1<<(type)))
        !            64: 
        !            65: /*
        !            66:  * ktrace record types
        !            67:  */
        !            68: 
        !            69: /*
        !            70:  * KTR_SYSCALL - system call record
        !            71:  */
        !            72: #define KTR_SYSCALL    1
        !            73: struct ktr_syscall {
        !            74:        short   ktr_code;               /* syscall number */
        !            75:        short   ktr_narg;               /* number of arguments */
        !            76:        /*
        !            77:         * followed by ktr_narg ints
        !            78:         */
        !            79: };
        !            80: 
        !            81: /*
        !            82:  * KTR_SYSRET - return from system call record
        !            83:  */
        !            84: #define KTR_SYSRET     2
        !            85: struct ktr_sysret {
        !            86:        short   ktr_code;
        !            87:        short   ktr_eosys;
        !            88:        int     ktr_error;
        !            89:        int     ktr_retval;
        !            90: };
        !            91: 
        !            92: /*
        !            93:  * KTR_NAMEI - namei record
        !            94:  */
        !            95: #define KTR_NAMEI      3
        !            96:        /* record contains pathname */
        !            97: 
        !            98: /*
        !            99:  * KTR_GENIO - trace generic process i/o
        !           100:  */
        !           101: #define KTR_GENIO      4
        !           102: struct ktr_genio {
        !           103:        int     ktr_fd;
        !           104:        enum    uio_rw ktr_rw;
        !           105:        /*
        !           106:         * followed by data successfully read/written
        !           107:         */
        !           108: };
        !           109: 
        !           110: /*
        !           111:  * KTR_PSIG - trace processed signal
        !           112:  */
        !           113: #define        KTR_PSIG        5
        !           114: struct ktr_psig {
        !           115:        int     signo;
        !           116:        sig_t   action;
        !           117:        int     mask;
        !           118:        int     code;
        !           119: };
        !           120: 
        !           121: /*
        !           122:  * kernel trace points (in p_traceflag)
        !           123:  */
        !           124: #define KTRFAC_MASK    0x00ffffff
        !           125: #define KTRFAC_SYSCALL (1<<KTR_SYSCALL)
        !           126: #define KTRFAC_SYSRET  (1<<KTR_SYSRET)
        !           127: #define KTRFAC_NAMEI   (1<<KTR_NAMEI)
        !           128: #define KTRFAC_GENIO   (1<<KTR_GENIO)
        !           129: #define        KTRFAC_PSIG     (1<<KTR_PSIG)
        !           130: /*
        !           131:  * trace flags (also in p_traceflags)
        !           132:  */
        !           133: #define KTRFAC_ROOT    0x80000000      /* root set this trace */
        !           134: #define KTRFAC_INHERIT 0x40000000      /* pass trace flags to children */
        !           135: 
        !           136: #ifndef        KERNEL
        !           137: 
        !           138: #include <sys/cdefs.h>
        !           139: 
        !           140: __BEGIN_DECLS
        !           141: int    ktrace __P((const char *, int, int, pid_t));
        !           142: __END_DECLS
        !           143: 
        !           144: #endif /* !KERNEL */

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