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
5package ipv6
6
7func (f *icmpv6Filter) accept(typ ICMPType) {
8	f.Data[typ>>5] &^= 1 << (uint32(typ) & 31)
9}
10
11func (f *icmpv6Filter) block(typ ICMPType) {
12	f.Data[typ>>5] |= 1 << (uint32(typ) & 31)
13}
14
15func (f *icmpv6Filter) setAll(block bool) {
16	for i := range f.Data {
17		if block {
18			f.Data[i] = 1<<32 - 1
19		} else {
20			f.Data[i] = 0
21		}
22	}
23}
24
25func (f *icmpv6Filter) willBlock(typ ICMPType) bool {
26	return f.Data[typ>>5]&(1<<(uint32(typ)&31)) != 0
27}
28