44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
//
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// Copyright (C) 2014 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#ifndef SHILL_NET_NDISC_H_
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#define SHILL_NET_NDISC_H_
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// Neighbor discovery related definitions. This is needed because kernel
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// currently does not export these definitions to the user space.
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// Netlink multicast group for neighbor discovery user option message.
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#define RTMGRP_ND_USEROPT 0x80000
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// Neighbor Discovery user option header definition.
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struct NDUserOptionHeader {
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NDUserOptionHeader() {
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memset(this, 0, sizeof(*this));
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}
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uint8_t type;
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uint8_t length;
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uint16_t reserved;
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uint32_t lifetime;
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} __attribute__((__packed__));
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// Neighbor Discovery user option type definition.
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#define ND_OPT_RDNSS 25 /* RFC 5006 */
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#define ND_OPT_DNSSL 31 /* RFC 6106 */
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// Infinity lifetime.
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#define ND_OPT_LIFETIME_INFINITY 0xFFFFFFFF
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#endif // SHILL_NET_NDISC_H_
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