PF_CS_IFNAME - FreeBSD

Symbol: PF_CS_IFNAME

lib/libpfctl/libpfctl.c

snl_add_msg_attr_string(&nw, PF_CS_IFNAME, kill->ifname);

sys/netpfil/pf/pf_nl.c

{ .type = PF_CS_IFNAME, .off = _OUT(psk_ifname), .arg = (void *)IFNAMSIZ, .cb = nlattr_get_chara },