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gitea/vendor/golang.org/x/net/ipv6/icmp_bsd.go
2021-02-28 18:08:33 -05:00

31 lines
734 B
Go
Vendored

// 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.
//go:build aix || darwin || dragonfly || freebsd || netbsd || openbsd
// +build aix 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
}