freebsd-dev/contrib/libpcap/chmod_bpf
Hans Petter Selasky b00ab7548b MFV r333789: libpcap 1.9.0 (pre-release)
MFC after:	1 month
Sponsored by:	Mellanox Technologies
2018-05-28 08:12:18 +00:00

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#! /bin/sh
#
# Unfortunately, macOS's devfs is based on the old FreeBSD
# one, not the current one, so there's no way to configure it
# to create BPF devices with particular owners or groups.
# This startup item will make it owned by the admin group,
# with permissions rw-rw----, so that anybody in the admin
# group can use programs that capture or send raw packets.
#
# Change this as appropriate for your site, e.g. to make
# it owned by a particular user without changing the permissions,
# so only that user and the super-user can capture or send raw
# packets, or give it the permissions rw-r-----, so that
# only the super-user can send raw packets but anybody in the
# admin group can capture packets.
#
chgrp admin /dev/bpf*
chmod g+rw /dev/bpf*