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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.

 */

#ifndef _PROTOCOL_H

#define _PROTOCOL_H

#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, struct device *dev,

                                   struct options *opt, __u32 daddr,

                                   unsigned short len, __u32 saddr,

                                   int redo, struct inet_protocol *protocol);

  void                  (*err_handler)(int type, int code, unsigned char *buff,

                                       __u32 daddr,

                                       __u32 saddr,

                                       struct inet_protocol *protocol, int len);

  struct inet_protocol *next;

  unsigned char         protocol;

  unsigned char         copy:1;

  void                  *data;

  const char            *name;

};

extern struct inet_protocol *inet_protocol_base;

extern struct inet_protocol *inet_protos[MAX_INET_PROTOS];

extern void             inet_add_protocol(struct inet_protocol *prot);

extern int              inet_del_protocol(struct inet_protocol *prot);

#endif  /* _PROTOCOL_H */