1/* $NetBSD: filemon.h,v 1.2 2011/07/04 23:37:30 sjg Exp $ */
2/*
3 * Copyright (c) 2010, Juniper Networks, Inc.
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 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26#ifndef FILEMON_SET_FD
27
28#ifndef _PATH_FILEMON
29#define _PATH_FILEMON "/dev/filemon"
30#endif
31#define FILEMON_SET_FD		_IOWR('S', 1, int)
32#define FILEMON_SET_PID		_IOWR('S', 2, pid_t)
33
34#define FILEMON_VERSION		4
35
36#ifdef _KERNEL
37struct filemon {
38	pid_t fm_pid;		/* The process ID being monitored. */
39	char fm_fname1[MAXPATHLEN];/* Temporary filename buffer. */
40	char fm_fname2[MAXPATHLEN];/* Temporary filename buffer. */
41	char fm_msgbufr[32 + 2 * MAXPATHLEN];	/* Output message buffer. */
42	int fm_fd;			/* Output fd */
43	struct file *fm_fp;	/* Output file pointer. */
44	krwlock_t fm_mtx;		/* Lock mutex for this filemon. */
45	TAILQ_ENTRY(filemon) fm_link;	/* Link into the in-use list. */
46};
47
48struct filemon * filemon_lookup(struct proc *);
49void filemon_output(struct filemon *, char *, size_t);
50void filemon_wrapper_install(void);
51void filemon_wrapper_deinstall(void);
52#endif
53
54#endif
55