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ktrace.h
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ktrace.h
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/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 THE REGENTS AND 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 THE REGENTS OR 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.
*
* @(#)ktrace.h 8.1 (Berkeley) 6/2/93
* $Id: ktrace.h,v 1.12 1997/02/22 09:45:26 peter Exp $
*/
#ifndef _SYS_KTRACE_H_
#define _SYS_KTRACE_H_
/*
* operations to ktrace system call (KTROP(op))
*/
#define KTROP_SET 0 /* set trace points */
#define KTROP_CLEAR 1 /* clear trace points */
#define KTROP_CLEARFILE 2 /* stop all tracing to file */
#define KTROP(o) ((o)&3) /* macro to extract operation */
/*
* flags (ORed in with operation)
*/
#define KTRFLAG_DESCEND 4 /* perform op on all children too */
/*
* ktrace record header
*/
struct ktr_header {
int ktr_len; /* length of buf */
short ktr_type; /* trace record type */
pid_t ktr_pid; /* process id */
char ktr_comm[MAXCOMLEN+1]; /* command name */
struct timeval ktr_time; /* timestamp */
caddr_t ktr_buf;
};
/*
* Test for kernel trace point
*/
#define KTRPOINT(p, type) \
(((p)->p_traceflag & ((1<<(type))|KTRFAC_ACTIVE)) == (1<<(type)))
/*
* ktrace record types
*/
/*
* KTR_SYSCALL - system call record
*/
#define KTR_SYSCALL 1
struct ktr_syscall {
short ktr_code; /* syscall number */
short ktr_narg; /* number of arguments */
/*
* followed by ktr_narg ints
*/
};
/*
* KTR_SYSRET - return from system call record
*/
#define KTR_SYSRET 2
struct ktr_sysret {
short ktr_code;
short ktr_eosys;
int ktr_error;
int ktr_retval;
};
/*
* KTR_NAMEI - namei record
*/
#define KTR_NAMEI 3
/* record contains pathname */
/*
* KTR_GENIO - trace generic process i/o
*/
#define KTR_GENIO 4
struct ktr_genio {
int ktr_fd;
enum uio_rw ktr_rw;
/*
* followed by data successfully read/written
*/
};
/*
* KTR_PSIG - trace processed signal
*/
#define KTR_PSIG 5
struct ktr_psig {
int signo;
sig_t action;
int mask;
int code;
};
/*
* KTR_CSW - trace context switches
*/
#define KTR_CSW 6
struct ktr_csw {
int out; /* 1 if switch out, 0 if switch in */
int user; /* 1 if usermode (ivcsw), 0 if kernel (vcsw) */
};
/*
* KTR_USER - data comming from userland
*/
#define KTR_USER 7
/*
* kernel trace points (in p_traceflag)
*/
#define KTRFAC_MASK 0x00ffffff
#define KTRFAC_SYSCALL (1<<KTR_SYSCALL)
#define KTRFAC_SYSRET (1<<KTR_SYSRET)
#define KTRFAC_NAMEI (1<<KTR_NAMEI)
#define KTRFAC_GENIO (1<<KTR_GENIO)
#define KTRFAC_PSIG (1<<KTR_PSIG)
#define KTRFAC_CSW (1<<KTR_CSW)
#define KTRFAC_USER (1<<KTR_USER)
/*
* trace flags (also in p_traceflags)
*/
#define KTRFAC_ROOT 0x80000000 /* root set this trace */
#define KTRFAC_INHERIT 0x40000000 /* pass trace flags to children */
#define KTRFAC_ACTIVE 0x20000000 /* ktrace logging in progress, ignore */
#ifdef KERNEL
void ktrnamei __P((struct vnode *,char *));
void ktrcsw __P((struct vnode *,int,int));
void ktrpsig __P((struct vnode *,int, sig_t, int, int));
void ktrgenio __P((struct vnode *,int, enum uio_rw,struct iovec *,int,int));
void ktrsyscall __P((struct vnode *, int, int narg, int args[]));
void ktrsysret __P((struct vnode *, int, int, int));
#else /* KERNEL */
#include <sys/cdefs.h>
__BEGIN_DECLS
int ktrace __P((const char *, int, int, pid_t));
int utrace __P((const caddr_t , size_t));
__END_DECLS
#endif /* !KERNEL */
#endif