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/*
* INET An implementation of the TCP/IP protocol suite for the LINUX
* operating system. INET is implemented using the BSD Socket
* interface as the means of communication with the user level.
*
* Definitions for the protocol dispatcher.
*
* Version: @(#)protocol.h 1.0.2 05/07/93
*
* Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Changes:
* Alan Cox : Added a name field and a frag handler
* field for later.
* Alan Cox : Cleaned up, and sorted types.
* Pedro Roque : inet6 protocols
*/
#ifndef _PROTOCOL_H
#define _PROTOCOL_H
#include <linux/config.h>
#include <linux/in6.h>
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
#include <linux/ipv6.h>
#endif
#define MAX_INET_PROTOS 32 /* Must be a power of 2 */
/* This is used to register protocols. */
struct inet_protocol
{
int (*handler)(struct sk_buff *skb, unsigned short len);
void (*err_handler)(struct sk_buff *skb, unsigned char *dp, int len);
struct inet_protocol *next;
unsigned char protocol;
unsigned char copy:1;
void *data;
const char *name;
};
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
struct inet6_protocol
{
int (*handler)(struct sk_buff *skb,
unsigned long len);
void (*err_handler)(struct sk_buff *skb, struct ipv6hdr *hdr,
struct inet6_skb_parm *opt,
int type, int code, unsigned char *buff,
__u32 info);
struct inet6_protocol *next;
unsigned char protocol;
unsigned char copy:1;
void *data;
const char *name;
};
#endif
extern struct inet_protocol *inet_protocol_base;
extern struct inet_protocol *inet_protos[MAX_INET_PROTOS];
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
extern struct inet6_protocol *inet6_protocol_base;
extern struct inet6_protocol *inet6_protos[MAX_INET_PROTOS];
#endif
extern void inet_add_protocol(struct inet_protocol *prot);
extern int inet_del_protocol(struct inet_protocol *prot);
#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE)
extern void inet6_add_protocol(struct inet6_protocol *prot);
extern int inet6_del_protocol(struct inet6_protocol *prot);
#endif
#endif /* _PROTOCOL_H */
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