2019-12-03 18:49:52 +00:00
|
|
|
// 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.
|
|
|
|
|
2020-05-30 14:29:47 +00:00
|
|
|
// +build aix darwin dragonfly freebsd netbsd openbsd
|
2019-12-03 18:49:52 +00:00
|
|
|
|
|
|
|
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
|
|
|
|
}
|