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1 | /* Copyright (C) 1991-2024 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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