Merge pull request #1 from google/master

catch up

1 files changed, 36 insertions, 0 deletions

diff --git a/pkg/tcpip/header/ndp_router_solicit.go b/pkg/tcpip/header/ndp_router_solicit.go
new file mode 100644
index 000000000..9e67ba95d
--- /dev/null
+++ b/pkg/tcpip/header/ndp_router_solicit.go
@@ -0,0 +1,36 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package header
+
+// NDPRouterSolicit is an NDP Router Solicitation message. It will only contain
+// the body of an ICMPv6 packet.
+//
+// See RFC 4861 section 4.1 for more details.
+type NDPRouterSolicit []byte
+
+const (
+	// NDPRSMinimumSize is the minimum size of a valid NDP Router
+	// Solicitation message (body of an ICMPv6 packet).
+	NDPRSMinimumSize = 4
+
+	// ndpRSOptionsOffset is the start of the NDP options in an
+	// NDPRouterSolicit.
+	ndpRSOptionsOffset = 4
+)
+
+// Options returns an NDPOptions of the the options body.
+func (b NDPRouterSolicit) Options() NDPOptions {
+	return NDPOptions(b[ndpRSOptionsOffset:])
+}