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Use cloning bpf.

This commit is contained in:
christos 2004-12-01 23:15:08 +00:00
parent fb5ec6aa33
commit c438716d36
1 changed files with 5 additions and 10 deletions
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15
usr.sbin/mopd/common/pf.c
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@ -1,4 +1,4 @@
/* $NetBSD: pf.c,v 1.9 2004/04/10 17:53:05 darrenr Exp $ */ /* $NetBSD: pf.c,v 1.10 2004/12/01 23:15:08 christos Exp $ */
/* /*
* Copyright (c) 1993-95 Mats O Jansson. All rights reserved. * Copyright (c) 1993-95 Mats O Jansson. All rights reserved.
@ -35,11 +35,12 @@
#include <sys/cdefs.h> #include <sys/cdefs.h>
#ifndef lint #ifndef lint
__RCSID("$NetBSD: pf.c,v 1.9 2004/04/10 17:53:05 darrenr Exp $"); __RCSID("$NetBSD: pf.c,v 1.10 2004/12/01 23:15:08 christos Exp $");
#endif #endif
#include "os.h" #include "os.h"
#include <paths.h>
#include <sys/uio.h> #include <sys/uio.h>
#include <net/bpf.h> #include <net/bpf.h>
@ -77,12 +78,11 @@ pfInit(interface, mode, protocol, typ)
int typ, mode; int typ, mode;
{ {
int fd; int fd;
int n = 0;
char device[sizeof "/dev/bpf000"];
struct ifreq ifr; struct ifreq ifr;
u_int dlt; u_int dlt;
int immediate; int immediate;
u_int bufsize; u_int bufsize;
const char *device = _PATH_BPF;
static struct bpf_insn insns[] = { static struct bpf_insn insns[] = {
BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 12), BPF_STMT(BPF_LD | BPF_H | BPF_ABS, 12),
@ -99,12 +99,7 @@ pfInit(interface, mode, protocol, typ)
insns insns
}; };
/* Go through all the minors and find one that isn't in use. */ fd = open(device, mode);
do {
(void) snprintf(device, sizeof(device), "/dev/bpf%d", n++);
fd = open(device, mode);
} while (fd < 0 && errno == EBUSY);
if (fd < 0) { if (fd < 0) {
mopLogWarn("pfInit: open %s", device); mopLogWarn("pfInit: open %s", device);
return(-1); return(-1);