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unix.c revision 1.18 
      1 /*	$NetBSD: unix.c,v 1.18 1999/08/19 06:13:09 cgd Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1983, 1988, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "from: @(#)unix.c	8.1 (Berkeley) 6/6/93";
     40 #else
     41 __RCSID("$NetBSD: unix.c,v 1.18 1999/08/19 06:13:09 cgd Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 /*
     46  * Display protocol blocks in the unix domain.
     47  */
     48 #include <sys/param.h>
     49 #include <sys/protosw.h>
     50 #include <sys/socket.h>
     51 #include <sys/socketvar.h>
     52 #include <sys/mbuf.h>
     53 #include <sys/sysctl.h>
     54 #include <sys/un.h>
     55 #include <sys/unpcb.h>
     56 #define _KERNEL
     57 struct uio;
     58 struct proc;
     59 #include <sys/file.h>
     60 
     61 #include <netinet/in.h>
     62 
     63 #include <stdio.h>
     64 #include <stdlib.h>
     65 #include <kvm.h>
     66 #include "netstat.h"
     67 
     68 static	void unixdomainpr __P((struct socket *, caddr_t));
     69 
     70 static struct	file *file, *fileNFILE;
     71 static int	nfiles;
     72 extern	kvm_t *kvmd;
     73 
     74 void
     75 unixpr(off)
     76 	u_long	off;
     77 {
     78 	struct file *fp;
     79 	struct socket sock, *so = &sock;
     80 	char *filebuf;
     81 	struct protosw *unixsw = (struct protosw *)off;
     82 
     83 	filebuf = (char *)kvm_getfiles(kvmd, KERN_FILE, 0, &nfiles);
     84 	if (filebuf == 0) {
     85 		printf("file table read error: %s", kvm_geterr(kvmd));
     86 		return;
     87 	}
     88 	file = (struct file *)(filebuf + sizeof(fp));
     89 	fileNFILE = file + nfiles;
     90 	for (fp = file; fp < fileNFILE; fp++) {
     91 		if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
     92 			continue;
     93 		if (kread((u_long)fp->f_data, (char *)so, sizeof (*so)))
     94 			continue;
     95 		/* kludge */
     96 		if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
     97 			if (so->so_pcb)
     98 				unixdomainpr(so, fp->f_data);
     99 	}
    100 }
    101 
    102 static	char *socktype[] =
    103     { "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
    104 
    105 static void
    106 unixdomainpr(so, soaddr)
    107 	struct socket *so;
    108 	caddr_t soaddr;
    109 {
    110 	struct unpcb unp;
    111 	struct sockaddr_un sun;
    112 	static int first = 1;
    113 
    114 	if (kread((u_long)so->so_pcb, (char *)&unp, sizeof (unp)))
    115 		return;
    116 	if (unp.unp_addr)
    117 		if (kread((u_long)unp.unp_addr, (char *)&sun, sizeof (sun)))
    118 			unp.unp_addr = 0;
    119 	if (first) {
    120 		printf("Active UNIX domain sockets\n");
    121 		printf(
    122 "%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
    123 		    "Address", "Type", "Recv-Q", "Send-Q",
    124 		    "Inode", "Conn", "Refs", "Nextref");
    125 		first = 0;
    126 	}
    127 	printf("%8lx %-6.6s %6ld %6ld %8lx %8lx %8lx %8lx",
    128 	    (u_long) soaddr, socktype[so->so_type], so->so_rcv.sb_cc, so->so_snd.sb_cc,
    129 	    (u_long) unp.unp_vnode, (u_long) unp.unp_conn,
    130 	    (u_long) unp.unp_refs, (u_long) unp.unp_nextref);
    131 	if (unp.unp_addr)
    132 		printf(" %.*s",
    133 		    (int) (sun.sun_len - (sizeof(sun) - sizeof(sun.sun_path))),
    134 		    sun.sun_path);
    135 	putchar('\n');
    136 }
    137