NetBSD-5.0.2/usr.bin/netstat/unix.c
/* $NetBSD: unix.c,v 1.28 2008/02/27 16:36:54 ad Exp $ */
/*-
* Copyright (c) 1983, 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. 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.
*/
#include <sys/cdefs.h>
#ifndef lint
#if 0
static char sccsid[] = "from: @(#)unix.c 8.1 (Berkeley) 6/6/93";
#else
__RCSID("$NetBSD: unix.c,v 1.28 2008/02/27 16:36:54 ad Exp $");
#endif
#endif /* not lint */
/*
* Display protocol blocks in the unix domain.
*/
#define _KERNEL
#include <sys/types.h>
#undef _KERNEL
#include <sys/param.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/mbuf.h>
#include <sys/sysctl.h>
#include <sys/un.h>
#include <sys/unpcb.h>
#define _KERNEL
struct uio;
struct proc;
#include <sys/file.h>
#include <netinet/in.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <kvm.h>
#include <err.h>
#include "netstat.h"
static void unixdomainprhdr(void);
static void unixdomainpr0(u_long, u_long, u_long, u_long, u_long, u_long,
u_long, u_long, u_long, struct sockaddr_un *, int);
static void unixdomainpr(struct socket *, void *);
static struct file *file, *fileNFILE;
static int ns_nfiles;
extern kvm_t *kvmd;
static void
unixdomainprhdr(void)
{
printf("Active UNIX domain sockets\n");
printf("%-8.8s %-6.6s %-6.6s %-6.6s %8.8s %8.8s %8.8s %8.8s Addr\n",
"Address", "Type", "Recv-Q", "Send-Q", "Inode", "Conn", "Refs",
"Nextref");
}
static char *socktype[] =
{ "#0", "stream", "dgram", "raw", "rdm", "seqpacket" };
static void
unixdomainpr0(u_long so_pcb, u_long so_type, u_long rcvq, u_long sndq,
u_long inode, u_long conn, u_long refs, u_long nextref,
u_long addr, struct sockaddr_un *sun, int remote)
{
printf("%8lx %-6.6s %6ld %6ld %8lx %8lx %8lx %8lx",
so_pcb, socktype[so_type], rcvq, sndq, inode, conn, refs,
nextref);
if (addr || remote)
printf((remote ? " -> %.*s" : " %.*s"),
(int)(sun->sun_len - (sizeof(*sun) - sizeof(sun->sun_path))),
sun->sun_path);
putchar('\n');
}
static void
unixdomainpr(so, soaddr)
struct socket *so;
void *soaddr;
{
struct unpcb unp, runp;
struct sockaddr_un sun, rsun;
static int first = 1;
int remote = 0;
if (kread((u_long)so->so_pcb, (char *)&unp, sizeof (unp)))
return;
if (unp.unp_addr)
if (kread((u_long)unp.unp_addr, (char *)&sun, sizeof (sun)))
unp.unp_addr = 0;
if (!unp.unp_addr) {
memset(&rsun, 0, sizeof(rsun));
if (unp.unp_conn &&
kread((u_long)unp.unp_conn, (char *)&runp, sizeof (runp)) == 0 &&
runp.unp_addr &&
kread((u_long)runp.unp_addr, (char *)&rsun, sizeof (rsun)) == 0 &&
rsun.sun_path[0] != '\0')
remote = 1;
}
if (first) {
unixdomainprhdr();
first = 0;
}
unixdomainpr0((u_long)so->so_pcb, so->so_type, so->so_rcv.sb_cc,
so->so_snd.sb_cc, (u_long)unp.unp_vnode,
(u_long)unp.unp_conn, (u_long)unp.unp_refs,
(u_long)unp.unp_nextref, (u_long)unp.unp_addr,
remote ? &rsun : &sun, remote);
}
void
unixpr(off)
u_long off;
{
struct file *fp;
struct socket sock, *so = &sock;
char *filebuf;
struct protosw *unixsw = (struct protosw *)off;
if (use_sysctl) {
struct kinfo_pcb *pcblist;
int mib[8];
size_t namelen = 0, size = 0, i;
char *mibname = "net.local.stream.pcblist";
static int first = 1;
int done = 0;
again:
memset(mib, 0, sizeof(mib));
if (sysctlnametomib(mibname, mib,
&namelen) == -1)
err(1, "sysctlnametomib: %s", mibname);
if (sysctl(mib, sizeof(mib) / sizeof(*mib), NULL, &size,
NULL, 0) == -1)
err(1, "sysctl (query)");
if ((pcblist = malloc(size)) == NULL)
err(1, "malloc");
memset(pcblist, 0, size);
mib[6] = sizeof(*pcblist);
mib[7] = size / sizeof(*pcblist);
if (sysctl(mib, sizeof(mib) / sizeof(*mib), pcblist,
&size, NULL, 0) == -1)
err(1, "sysctl (copy)");
for (i = 0; i < size / sizeof(*pcblist); i++) {
struct kinfo_pcb *ki = &pcblist[i];
struct sockaddr_un *sun;
int remote = 0;
if (first) {
unixdomainprhdr();
first = 0;
}
sun = (struct sockaddr_un *)&ki->ki_dst;
if (sun->sun_path[0] != '\0') {
remote = 1;
} else {
sun = (struct sockaddr_un *)&ki->ki_src;
}
unixdomainpr0(ki->ki_pcbaddr, ki->ki_type,
ki->ki_rcvq, ki->ki_sndq,
ki->ki_vnode, ki->ki_conn, ki->ki_refs,
ki->ki_nextref, ki->ki_sockaddr, sun, remote);
}
free(pcblist);
if (!done && mibname) {
mibname = "net.local.dgram.pcblist";
done = 1;
goto again;
}
} else {
filebuf = (char *)kvm_getfiles(kvmd, KERN_FILE, 0, &ns_nfiles);
if (filebuf == 0) {
printf("file table read error: %s", kvm_geterr(kvmd));
return;
}
file = (struct file *)(filebuf + sizeof(fp));
fileNFILE = file + ns_nfiles;
for (fp = file; fp < fileNFILE; fp++) {
if (fp->f_count == 0 || fp->f_type != DTYPE_SOCKET)
continue;
if (kread((u_long)fp->f_data, (char *)so, sizeof (*so)))
continue;
/* kludge */
if (so->so_proto >= unixsw && so->so_proto <= unixsw + 2)
if (so->so_pcb)
unixdomainpr(so, fp->f_data);
}
}
}