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| 1 | /* Copyright (C) 1991-2022 Free Software Foundation, Inc. |
|---|---|
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <https://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | /* |
| 19 | * Copyright (C) 1982, 1986 Regents of the University of California. |
| 20 | * All rights reserved. |
| 21 | * |
| 22 | * Redistribution and use in source and binary forms, with or without |
| 23 | * modification, are permitted provided that the following conditions |
| 24 | * are met: |
| 25 | * 1. Redistributions of source code must retain the above copyright |
| 26 | * notice, this list of conditions and the following disclaimer. |
| 27 | * 2. Redistributions in binary form must reproduce the above copyright |
| 28 | * notice, this list of conditions and the following disclaimer in the |
| 29 | * documentation and/or other materials provided with the distribution. |
| 30 | * 4. Neither the name of the University nor the names of its contributors |
| 31 | * may be used to endorse or promote products derived from this software |
| 32 | * without specific prior written permission. |
| 33 | * |
| 34 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 35 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 36 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 37 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 38 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 39 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 40 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 41 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 42 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 43 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 44 | * SUCH DAMAGE. |
| 45 | */ |
| 46 | |
| 47 | #ifndef __NETINET_UDP_H |
| 48 | #define __NETINET_UDP_H 1 |
| 49 | |
| 50 | #include <sys/types.h> |
| 51 | #include <stdint.h> |
| 52 | |
| 53 | /* UDP header as specified by RFC 768, August 1980. */ |
| 54 | |
| 55 | struct udphdr |
| 56 | { |
| 57 | __extension__ union |
| 58 | { |
| 59 | struct |
| 60 | { |
| 61 | uint16_t uh_sport; /* source port */ |
| 62 | uint16_t uh_dport; /* destination port */ |
| 63 | uint16_t uh_ulen; /* udp length */ |
| 64 | uint16_t uh_sum; /* udp checksum */ |
| 65 | }; |
| 66 | struct |
| 67 | { |
| 68 | uint16_t source; |
| 69 | uint16_t dest; |
| 70 | uint16_t len; |
| 71 | uint16_t check; |
| 72 | }; |
| 73 | }; |
| 74 | }; |
| 75 | |
| 76 | /* UDP socket options */ |
| 77 | #define UDP_CORK 1 /* Never send partially complete segments. */ |
| 78 | #define UDP_ENCAP 100 /* Set the socket to accept |
| 79 | encapsulated packets. */ |
| 80 | #define UDP_NO_CHECK6_TX 101 /* Disable sending checksum for UDP |
| 81 | over IPv6. */ |
| 82 | #define UDP_NO_CHECK6_RX 102 /* Disable accepting checksum for UDP |
| 83 | over IPv6. */ |
| 84 | #define UDP_SEGMENT 103 /* Set GSO segmentation size. */ |
| 85 | #define UDP_GRO 104 /* This socket can receive UDP GRO packets. */ |
| 86 | |
| 87 | /* UDP encapsulation types */ |
| 88 | #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ |
| 89 | #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */ |
| 90 | #define UDP_ENCAP_L2TPINUDP 3 /* rfc2661 */ |
| 91 | #define UDP_ENCAP_GTP0 4 /* GSM TS 09.60 */ |
| 92 | #define UDP_ENCAP_GTP1U 5 /* 3GPP TS 29.060 */ |
| 93 | |
| 94 | #define SOL_UDP 17 /* sockopt level for UDP */ |
| 95 | |
| 96 | #endif /* netinet/udp.h */ |
| 97 |
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