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-rw-r--r--vendor/golang.org/x/net/ipv4/icmp.go57
1 files changed, 57 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/ipv4/icmp.go b/vendor/golang.org/x/net/ipv4/icmp.go
new file mode 100644
index 0000000..9902bb3
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/icmp.go
@@ -0,0 +1,57 @@
+// 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 ipv4
+
+import "golang.org/x/net/internal/iana"
+
+// An ICMPType represents a type of ICMP message.
+type ICMPType int
+
+func (typ ICMPType) String() string {
+ s, ok := icmpTypes[typ]
+ if !ok {
+ return "<nil>"
+ }
+ return s
+}
+
+// Protocol returns the ICMPv4 protocol number.
+func (typ ICMPType) Protocol() int {
+ return iana.ProtocolICMP
+}
+
+// An ICMPFilter represents an ICMP message filter for incoming
+// packets. The filter belongs to a packet delivery path on a host and
+// it cannot interact with forwarding packets or tunnel-outer packets.
+//
+// Note: RFC 8200 defines a reasonable role model and it works not
+// only for IPv6 but IPv4. A node means a device that implements IP.
+// A router means a node that forwards IP packets not explicitly
+// addressed to itself, and a host means a node that is not a router.
+type ICMPFilter struct {
+ icmpFilter
+}
+
+// Accept accepts incoming ICMP packets including the type field value
+// typ.
+func (f *ICMPFilter) Accept(typ ICMPType) {
+ f.accept(typ)
+}
+
+// Block blocks incoming ICMP packets including the type field value
+// typ.
+func (f *ICMPFilter) Block(typ ICMPType) {
+ f.block(typ)
+}
+
+// SetAll sets the filter action to the filter.
+func (f *ICMPFilter) SetAll(block bool) {
+ f.setAll(block)
+}
+
+// WillBlock reports whether the ICMP type will be blocked.
+func (f *ICMPFilter) WillBlock(typ ICMPType) bool {
+ return f.willBlock(typ)
+}