unix.c revision 14543 
1/*-
2 * Copyright (c) 1983, 1988, 1993
3 *	The Regents of the University of California.  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
34#ifndef lint
35static char sccsid[] = "@(#)unix.c	8.1 (Berkeley) 6/6/93";
36#endif /* not lint */
37
38/*
39 * Display protocol blocks in the unix domain.
40 */
41#include <kvm.h>
42#include <sys/param.h>
43#include <sys/queue.h>
44#include <sys/protosw.h>
45#include <sys/socket.h>
46#include <sys/socketvar.h>
47#include <sys/mbuf.h>
48#include <sys/sysctl.h>
49#include <sys/un.h>
50#include <sys/unpcb.h>
51#define KERNEL
52struct uio;
53struct proc;
54#include <sys/file.h>
55
56#include <netinet/in.h>
57
58#include <stdio.h>
59#include <stdlib.h>
60#include "netstat.h"
61
62static	void unixdomainpr __P((struct socket *, caddr_t));
63
64static struct	file *file, *fileNFILE;
65static int	nfiles;
66extern	kvm_t *kvmd;
67
68void
69unixpr(off)
70	u_long	off;
71{
72	register struct file *fp;
73	struct socket sock, *so = &sock;
74	char *filebuf;
75	struct protosw *unixsw = (struct protosw *)off;
76
77	filebuf = (char *)kvm_getfiles(kvmd, KERN_FILE, 0, &nfiles);
78	if (filebuf == 0) {
79		printf("Out of memory (file table).\n");
80		return;
81	}
82	file = (struct file *)(filebuf + sizeof(fp));
83	fileNFILE = file + nfiles;
84	for (fp = file; fp < fileNFILE; fp++) {
85		if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
86			continue;
87		if (kread((u_long)fp->f_data, (char *)so, sizeof (*so)))
88			continue;
89		/* kludge */
90		if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
91			if (so->so_pcb)
92				unixdomainpr(so, fp->f_data);
93	}
94}
95
96static	char *socktype[] =
97    { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
98
99static void
100unixdomainpr(so, soaddr)
101	register struct socket *so;
102	caddr_t soaddr;
103{
104	struct unpcb unpcb, *unp = &unpcb;
105	struct mbuf mbuf, *m;
106	struct sockaddr_un *sa;
107	static int first = 1;
108
109	if (kread((u_long)so->so_pcb, (char *)unp, sizeof (*unp)))
110		return;
111	if (unp->unp_addr) {
112		m = &mbuf;
113		if (kread((u_long)unp->unp_addr, (char *)m, sizeof (*m)))
114			m = (struct mbuf *)0;
115		sa = (struct sockaddr_un *)(m->m_dat);
116	} else
117		m = (struct mbuf *)0;
118	if (first) {
119		printf("Active UNIX domain sockets\n");
120		printf(
121"%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
122		    "Address", "Type", "Recv-Q", "Send-Q",
123		    "Inode", "Conn", "Refs", "Nextref");
124		first = 0;
125	}
126	printf("%8x %-6.6s %6d %6d %8x %8x %8x %8x",
127	    soaddr, socktype[so->so_type], so->so_rcv.sb_cc, so->so_snd.sb_cc,
128	    unp->unp_vnode, unp->unp_conn,
129	    unp->unp_refs, unp->unp_nextref);
130	if (m)
131		printf(" %.*s",
132		    m->m_len - (int)(sizeof(*sa) - sizeof(sa->sun_path)),
133		    sa->sun_path);
134	putchar('\n');
135}
136