summaryrefslogtreecommitdiffstats
path: root/vendor/golang.org/x/net/ipv6/icmp_bsd.go
blob: e1a791de46ed342ded423cde640e777635eca402 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
// 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.

// +build darwin dragonfly freebsd netbsd openbsd

package ipv6

func (f *icmpv6Filter) accept(typ ICMPType) {
	f.Filt[typ>>5] |= 1 << (uint32(typ) & 31)
}

func (f *icmpv6Filter) block(typ ICMPType) {
	f.Filt[typ>>5] &^= 1 << (uint32(typ) & 31)
}

func (f *icmpv6Filter) setAll(block bool) {
	for i := range f.Filt {
		if block {
			f.Filt[i] = 0
		} else {
			f.Filt[i] = 1<<32 - 1
		}
	}
}

func (f *icmpv6Filter) willBlock(typ ICMPType) bool {
	return f.Filt[typ>>5]&(1<<(uint32(typ)&31)) == 0
}