forked from TrueCloudLab/restic
27 lines
663 B
Go
27 lines
663 B
Go
// 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.X__icmp6_filt[typ>>5] |= 1 << (uint32(typ) & 31)
|
|
}
|
|
|
|
func (f *icmpv6Filter) block(typ ICMPType) {
|
|
f.X__icmp6_filt[typ>>5] &^= 1 << (uint32(typ) & 31)
|
|
}
|
|
|
|
func (f *icmpv6Filter) setAll(block bool) {
|
|
for i := range f.X__icmp6_filt {
|
|
if block {
|
|
f.X__icmp6_filt[i] = 0
|
|
} else {
|
|
f.X__icmp6_filt[i] = 1<<32 - 1
|
|
}
|
|
}
|
|
}
|
|
|
|
func (f *icmpv6Filter) willBlock(typ ICMPType) bool {
|
|
return f.X__icmp6_filt[typ>>5]&(1<<(uint32(typ)&31)) == 0
|
|
}
|