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security
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github.com
golang.org
x
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mod
net
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context
icmp
internal
ipv4
batch.go
control.go
control_bsd.go
control_pktinfo.go
control_stub.go
control_unix.go
control_windows.go
control_zos.go
dgramopt.go
doc.go
endpoint.go
genericopt.go
header.go
helper.go
iana.go
icmp.go
icmp_linux.go
icmp_stub.go
packet.go
payload.go
payload_cmsg.go
payload_nocmsg.go
sockopt.go
sockopt_posix.go
sockopt_stub.go
sys_aix.go
sys_asmreq.go
sys_asmreq_stub.go
sys_asmreqn.go
sys_asmreqn_stub.go
sys_bpf.go
sys_bpf_stub.go
sys_bsd.go
sys_darwin.go
sys_dragonfly.go
sys_freebsd.go
sys_linux.go
sys_solaris.go
sys_ssmreq.go
sys_ssmreq_stub.go
sys_stub.go
sys_windows.go
sys_zos.go
zsys_aix_ppc64.go
zsys_darwin.go
zsys_dragonfly.go
zsys_freebsd_386.go
zsys_freebsd_amd64.go
zsys_freebsd_arm.go
zsys_freebsd_arm64.go
zsys_linux_386.go
zsys_linux_amd64.go
zsys_linux_arm.go
zsys_linux_arm64.go
zsys_linux_mips.go
zsys_linux_mips64.go
zsys_linux_mips64le.go
zsys_linux_mipsle.go
zsys_linux_ppc.go
zsys_linux_ppc64.go
zsys_linux_ppc64le.go
zsys_linux_riscv64.go
zsys_linux_s390x.go
zsys_netbsd.go
zsys_openbsd.go
zsys_solaris.go
zsys_zos_s390x.go
ipv6
AUTHORS
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main.go
26 lines
538 B
Go
26 lines
538 B
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ipv4
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func (f *icmpFilter) accept(typ ICMPType) {
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f.Data &^= 1 << (uint32(typ) & 31)
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}
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func (f *icmpFilter) block(typ ICMPType) {
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f.Data |= 1 << (uint32(typ) & 31)
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}
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func (f *icmpFilter) setAll(block bool) {
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if block {
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f.Data = 1<<32 - 1
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} else {
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f.Data = 0
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}
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}
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func (f *icmpFilter) willBlock(typ ICMPType) bool {
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return f.Data&(1<<(uint32(typ)&31)) != 0
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}
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