blob: 0a70f5f7cf6d991ae1108de42a077e823df4495f [file] [log] [blame]
// 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
import "syscall"
type rawICMPFilter struct {
syscall.ICMPv6Filter
}
func (f *rawICMPFilter) set(typ ICMPType, block bool) {
if block {
f.Data[typ>>5] |= 1 << (uint32(typ) & 31)
} else {
f.Data[typ>>5] &^= 1 << (uint32(typ) & 31)
}
}
func (f *rawICMPFilter) setAll(block bool) {
for i := range f.Data {
if block {
f.Data[i] = 1<<32 - 1
} else {
f.Data[i] = 0
}
}
}
func (f *rawICMPFilter) willBlock(typ ICMPType) bool {
return f.Data[typ>>5]&(1<<(uint32(typ)&31)) != 0
}