1 | /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
2 | /* |
3 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
4 | * operating system. INET is implemented using the BSD Socket |
5 | * interface as the means of communication with the user level. |
6 | * |
7 | * Definitions for the UDP protocol. |
8 | * |
9 | * Version: @(#)udp.h 1.0.2 04/28/93 |
10 | * |
11 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
12 | * |
13 | * This program is free software; you can redistribute it and/or |
14 | * modify it under the terms of the GNU General Public License |
15 | * as published by the Free Software Foundation; either version |
16 | * 2 of the License, or (at your option) any later version. |
17 | */ |
18 | #ifndef _LINUX_UDP_H |
19 | #define _LINUX_UDP_H |
20 | |
21 | #include <linux/types.h> |
22 | |
23 | struct udphdr { |
24 | __be16 source; |
25 | __be16 dest; |
26 | __be16 len; |
27 | __sum16 check; |
28 | }; |
29 | |
30 | /* UDP socket options */ |
31 | #define UDP_CORK 1 /* Never send partially complete segments */ |
32 | #define UDP_ENCAP 100 /* Set the socket to accept encapsulated packets */ |
33 | #define UDP_NO_CHECK6_TX 101 /* Disable sending checksum for UDP6X */ |
34 | #define UDP_NO_CHECK6_RX 102 /* Disable accpeting checksum for UDP6 */ |
35 | #define UDP_SEGMENT 103 /* Set GSO segmentation size */ |
36 | #define UDP_GRO 104 /* This socket can receive UDP GRO packets */ |
37 | |
38 | /* UDP encapsulation types */ |
39 | #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ |
40 | #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */ |
41 | #define UDP_ENCAP_L2TPINUDP 3 /* rfc2661 */ |
42 | #define UDP_ENCAP_GTP0 4 /* GSM TS 09.60 */ |
43 | #define UDP_ENCAP_GTP1U 5 /* 3GPP TS 29.060 */ |
44 | #define UDP_ENCAP_RXRPC 6 |
45 | #define TCP_ENCAP_ESPINTCP 7 /* Yikes, this is really xfrm encap types. */ |
46 | |
47 | #endif /* _LINUX_UDP_H */ |
48 | |