diff options
Diffstat (limited to 'share/man/man4/bpf.4')
| -rw-r--r-- | share/man/man4/bpf.4 | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/share/man/man4/bpf.4 b/share/man/man4/bpf.4 index 2839dade7e10..9911a6398ada 100644 --- a/share/man/man4/bpf.4 +++ b/share/man/man4/bpf.4 @@ -22,7 +22,7 @@ .\" .\" $FreeBSD$ .\" -.Dd January 16, 1996 +.Dd August 23, 2005 .Dt BPF 4 .Os .Sh NAME @@ -258,8 +258,13 @@ for an explanation of the filter language. .It Dv BIOCSETWF .Pq Li "struct bpf_program" Sets the write filter program used by the kernel to control what type of -packets can be written to the interface. See the BIOCSETF command for more -information on the bpf filter program. +packets can be written to the interface. +See the +.Dv BIOCSETF +command for more +information on the +.Nm +filter program. .It Dv BIOCVERSION .Pq Li "struct bpf_version" Returns the major and minor version numbers of the filter language currently @@ -307,7 +312,10 @@ Set to one to see packets originating locally and remotely on the interface. This flag is initialized to one by default. .It Dv BIOCLOCK -Set the locked flag on the bpf descriptor. This prevents the execution of +Set the locked flag on the +.Nm +descriptor. +This prevents the execution of ioctl commands which could change the underlying operating parameters of the device. .El |