// Copyright 2013 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package ipv6 func (f *icmpv6Filter) accept(typ ICMPType) { f.Data[typ>>5] &^= 1 << (uint32(typ) & 31) } func (f *icmpv6Filter) block(typ ICMPType) { f.Data[typ>>5] |= 1 << (uint32(typ) & 31) } func (f *icmpv6Filter) setAll(block bool) { for i := range f.Data { if block { f.Data[i] = 1<<32 - 1 } else { f.Data[i] = 0 } } } func (f *icmpv6Filter) willBlock(typ ICMPType) bool { return f.Data[typ>>5]&(1<<(uint32(typ)&31)) != 0 }