Rev 422 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | /* |
| 2 | * INET An implementation of the TCP/IP protocol suite for the LINUX |
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| 3 | * operating system. INET is implemented using the BSD Socket |
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| 4 | * interface as the means of communication with the user level. |
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| 5 | * |
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| 6 | * Definitions for the UDP protocol. |
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| 7 | * |
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| 8 | * Version: @(#)udp.h 1.0.2 04/28/93 |
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| 9 | * |
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| 10 | * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> |
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| 11 | * |
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| 12 | * This program is free software; you can redistribute it and/or |
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| 13 | * modify it under the terms of the GNU General Public License |
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| 14 | * as published by the Free Software Foundation; either version |
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| 15 | * 2 of the License, or (at your option) any later version. |
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| 16 | */ |
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| 17 | #ifndef _LINUX_UDP_H |
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| 18 | #define _LINUX_UDP_H |
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| 19 | |||
| 20 | #include <linux/types.h> |
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| 21 | |||
| 22 | struct udphdr { |
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| 23 | __u16 source; |
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| 24 | __u16 dest; |
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| 25 | __u16 len; |
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| 26 | __u16 check; |
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| 27 | }; |
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| 28 | |||
| 29 | /* UDP socket options */ |
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| 30 | #define UDP_CORK 1 /* Never send partially complete segments */ |
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| 31 | #define UDP_ENCAP 100 /* Set the socket to accept encapsulated packets */ |
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| 32 | |||
| 33 | /* UDP encapsulation types */ |
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| 34 | #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */ |
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| 35 | |||
| 36 | #ifdef __KERNEL__ |
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| 37 | |||
| 38 | #include <linux/config.h> |
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| 39 | #include <net/sock.h> |
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| 40 | #include <linux/ip.h> |
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| 41 | |||
| 42 | struct udp_opt { |
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| 43 | int pending; /* Any pending frames ? */ |
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| 44 | unsigned int corkflag; /* Cork is required */ |
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| 45 | __u16 encap_type; /* Is this an Encapsulation socket? */ |
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| 46 | /* |
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| 47 | * Following member retains the infomation to create a UDP header |
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| 48 | * when the socket is uncorked. |
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| 49 | */ |
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| 50 | __u16 len; /* total length of pending frames */ |
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| 51 | }; |
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| 52 | |||
| 53 | /* WARNING: don't change the layout of the members in udp_sock! */ |
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| 54 | struct udp_sock { |
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| 55 | struct sock sk; |
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| 56 | #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) |
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| 57 | struct ipv6_pinfo *pinet6; |
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| 58 | #endif |
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| 59 | struct inet_opt inet; |
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| 60 | struct udp_opt udp; |
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| 61 | }; |
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| 62 | |||
| 63 | #define udp_sk(__sk) (&((struct udp_sock *)__sk)->udp) |
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| 64 | |||
| 65 | #endif |
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| 66 | |||
| 67 | #endif /* _LINUX_UDP_H */ |