1// Copyright 2013 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd 6// +build aix darwin dragonfly freebsd netbsd openbsd 7 8package ipv6 9 10func (f *icmpv6Filter) accept(typ ICMPType) { 11 f.Filt[typ>>5] |= 1 << (uint32(typ) & 31) 12} 13 14func (f *icmpv6Filter) block(typ ICMPType) { 15 f.Filt[typ>>5] &^= 1 << (uint32(typ) & 31) 16} 17 18func (f *icmpv6Filter) setAll(block bool) { 19 for i := range f.Filt { 20 if block { 21 f.Filt[i] = 0 22 } else { 23 f.Filt[i] = 1<<32 - 1 24 } 25 } 26} 27 28func (f *icmpv6Filter) willBlock(typ ICMPType) bool { 29 return f.Filt[typ>>5]&(1<<(uint32(typ)&31)) == 0 30} 31