diff options
| author | Marco Pfatschbacher <mpf@cvs.openbsd.org> | 2009-12-14 22:12:15 +0000 |
|---|---|---|
| committer | Marco Pfatschbacher <mpf@cvs.openbsd.org> | 2009-12-14 22:12:15 +0000 |
| commit | 44ac231887907592b7627ceab5569a53e94061b8 (patch) | |
| tree | 14f8ab36affd1f345aec81975f38542eeeac974c /usr.sbin/dhcpd | |
| parent | 1081ffa5fe78575fa11ee7aa2ed07cf55a0411db (diff) | |
Just like dhclient(8), we use the bpf filter drop to prevent
us from sending an icmp error along with the dhcp reply.
OK henning@
Diffstat (limited to 'usr.sbin/dhcpd')
| -rw-r--r-- | usr.sbin/dhcpd/bpf.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/usr.sbin/dhcpd/bpf.c b/usr.sbin/dhcpd/bpf.c index ce3cd3b76b7..efa3fcff140 100644 --- a/usr.sbin/dhcpd/bpf.c +++ b/usr.sbin/dhcpd/bpf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bpf.c,v 1.7 2008/09/15 20:38:17 claudio Exp $ */ +/* $OpenBSD: bpf.c,v 1.8 2009/12/14 22:12:14 mpf Exp $ */ /* BPF socket interface code, originally contributed by Archie Cobbs. */ @@ -191,6 +191,9 @@ if_register_receive(struct interface_info *info) if (ioctl(info->rfdesc, BIOCIMMEDIATE, &flag) == -1) error("Can't set immediate mode on bpf device: %m"); + if (ioctl(info->rfdesc, BIOCSFILDROP, &flag) == -1) + error("Can't set filter-drop mode on bpf device: %m"); + /* make sure kernel fills in the source ethernet address */ if (ioctl(info->rfdesc, BIOCSHDRCMPLT, &cmplt) == -1) error("Can't set header complete flag on bpf device: %m"); |