blob: 647f6b44fff1a5b5fe988b79ee8fd7595e4f8c5f (
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
|
// 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
}
|
