180 lines
4.9 KiB
C
180 lines
4.9 KiB
C
/*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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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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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ktrace.h 8.1 (Berkeley) 6/2/93
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* $FreeBSD$
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*/
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#ifndef _SYS_KTRACE_H_
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#define _SYS_KTRACE_H_
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/*
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* operations to ktrace system call (KTROP(op))
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*/
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#define KTROP_SET 0 /* set trace points */
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#define KTROP_CLEAR 1 /* clear trace points */
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#define KTROP_CLEARFILE 2 /* stop all tracing to file */
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#define KTROP(o) ((o)&3) /* macro to extract operation */
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/*
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* flags (ORed in with operation)
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*/
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#define KTRFLAG_DESCEND 4 /* perform op on all children too */
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/*
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* ktrace record header
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*/
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struct ktr_header {
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int ktr_len; /* length of buf */
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short ktr_type; /* trace record type */
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pid_t ktr_pid; /* process id */
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char ktr_comm[MAXCOMLEN+1]; /* command name */
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struct timeval ktr_time; /* timestamp */
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caddr_t ktr_buffer;
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};
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/*
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* Test for kernel trace point (MP SAFE)
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*/
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#define KTRPOINT(p, type) \
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(((p)->p_traceflag & ((1<<(type))|KTRFAC_ACTIVE)) == (1<<(type)))
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/*
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* ktrace record types
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*/
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/*
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* KTR_SYSCALL - system call record
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*/
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#define KTR_SYSCALL 1
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struct ktr_syscall {
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short ktr_code; /* syscall number */
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short ktr_narg; /* number of arguments */
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/*
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* followed by ktr_narg register_t
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*/
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register_t ktr_args[1];
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};
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/*
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* KTR_SYSRET - return from system call record
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*/
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#define KTR_SYSRET 2
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struct ktr_sysret {
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short ktr_code;
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short ktr_eosys;
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int ktr_error;
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register_t ktr_retval;
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};
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/*
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* KTR_NAMEI - namei record
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*/
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#define KTR_NAMEI 3
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/* record contains pathname */
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/*
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* KTR_GENIO - trace generic process i/o
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*/
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#define KTR_GENIO 4
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struct ktr_genio {
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int ktr_fd;
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enum uio_rw ktr_rw;
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/*
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* followed by data successfully read/written
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*/
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};
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/*
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* KTR_PSIG - trace processed signal
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*/
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#define KTR_PSIG 5
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struct ktr_psig {
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int signo;
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sig_t action;
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int code;
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sigset_t mask;
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};
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/*
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* KTR_CSW - trace context switches
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*/
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#define KTR_CSW 6
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struct ktr_csw {
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int out; /* 1 if switch out, 0 if switch in */
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int user; /* 1 if usermode (ivcsw), 0 if kernel (vcsw) */
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};
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/*
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* KTR_USER - data comming from userland
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*/
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#define KTR_USER_MAXLEN 2048 /* maximum length of passed data */
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#define KTR_USER 7
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/*
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* kernel trace points (in p_traceflag)
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*/
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#define KTRFAC_MASK 0x00ffffff
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#define KTRFAC_SYSCALL (1<<KTR_SYSCALL)
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#define KTRFAC_SYSRET (1<<KTR_SYSRET)
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#define KTRFAC_NAMEI (1<<KTR_NAMEI)
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#define KTRFAC_GENIO (1<<KTR_GENIO)
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#define KTRFAC_PSIG (1<<KTR_PSIG)
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#define KTRFAC_CSW (1<<KTR_CSW)
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#define KTRFAC_USER (1<<KTR_USER)
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/*
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* trace flags (also in p_traceflags)
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*/
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#define KTRFAC_ROOT 0x80000000 /* root set this trace */
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#define KTRFAC_INHERIT 0x40000000 /* pass trace flags to children */
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#define KTRFAC_ACTIVE 0x20000000 /* ktrace logging in progress, ignore */
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#ifdef _KERNEL
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void ktrnamei __P((struct vnode *,char *));
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void ktrcsw __P((struct vnode *,int,int));
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void ktrpsig __P((struct vnode *, int, sig_t, sigset_t *, int));
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void ktrgenio __P((struct vnode *, int, enum uio_rw, struct uio *, int));
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void ktrsyscall __P((struct vnode *, int, int narg, register_t args[]));
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void ktrsysret __P((struct vnode *, int, int, register_t));
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#else
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int ktrace __P((const char *, int, int, pid_t));
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int utrace __P((const void *, size_t));
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__END_DECLS
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#endif
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#endif
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