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author | 2019-03-18 00:00:59 +0000 | |
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committer | 2019-03-18 00:00:59 +0000 | |
commit | b57001d2402253b2754c7550188932001fb07564 (patch) | |
tree | c6a4cccd021ced73f832459e308ac89cd578f11d /sbin/dhclient/bpf.c | |
parent | extend BIOCSFILDROP so it can be configured to not capture packets. (diff) | |
download | wireguard-openbsd-b57001d2402253b2754c7550188932001fb07564.tar.xz wireguard-openbsd-b57001d2402253b2754c7550188932001fb07564.zip |
explicitly use BPF_FILDROP_CAPTURE when configuring BIOCSFILDROP
BIOCSFILDROP used to just be a flag, ie, any non-zero value was
treated the same, but i'm changing it so different values do different
things. this way the programs should keep working even if i decide
to change the values for these macros.
Diffstat (limited to 'sbin/dhclient/bpf.c')
-rw-r--r-- | sbin/dhclient/bpf.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sbin/dhclient/bpf.c b/sbin/dhclient/bpf.c index d1aeeaf8ba7..1bb287687fc 100644 --- a/sbin/dhclient/bpf.c +++ b/sbin/dhclient/bpf.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bpf.c,v 1.74 2019/01/05 21:40:44 krw Exp $ */ +/* $OpenBSD: bpf.c,v 1.75 2019/03/18 00:00:59 dlg Exp $ */ /* BPF socket interface code, originally contributed by Archie Cobbs. */ @@ -183,6 +183,7 @@ configure_bpf_sock(int bpffd) struct bpf_version v; struct bpf_program p; int flag = 1, sz; + int fildrop = BPF_FILDROP_CAPTURE; /* Make sure the BPF version is in range. */ if (ioctl(bpffd, BIOCVERSION, &v) == -1) @@ -201,7 +202,7 @@ configure_bpf_sock(int bpffd) if (ioctl(bpffd, BIOCIMMEDIATE, &flag) == -1) fatal("BIOCIMMEDIATE"); - if (ioctl(bpffd, BIOCSFILDROP, &flag) == -1) + if (ioctl(bpffd, BIOCSFILDROP, &fildrop) == -1) fatal("BIOCSFILDROP"); /* Get the required BPF buffer length from the kernel. */ |