include/net/protocol.h

/* */
   1 /*
   2  * INET         An implementation of the TCP/IP protocol suite for the LINUX
   3  *              operating system.  INET is implemented using the  BSD Socket
   4  *              interface as the means of communication with the user level.
   5  *
   6  *              Definitions for the protocol dispatcher.
   7  *
   8  * Version:     @(#)protocol.h  1.0.2   05/07/93
   9  *
  10  * Author:      Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  11  *
  12  *              This program is free software; you can redistribute it and/or
  13  *              modify it under the terms of the GNU General Public License
  14  *              as published by the Free Software Foundation; either version
  15  *              2 of the License, or (at your option) any later version.
  16  *
  17  *      Changes:
  18  *              Alan Cox        :       Added a name field and a frag handler
  19  *                                      field for later.
  20  *              Alan Cox        :       Cleaned up, and sorted types.
  21  */
  22  
  23 #ifndef _PROTOCOL_H
  24 #define _PROTOCOL_H
  25 
  26 
  27 #define MAX_INET_PROTOS 32              /* Must be a power of 2         */
  28 
  29 
  30 /* This is used to register protocols. */
  31 struct inet_protocol {
  32   int                   (*handler)(struct sk_buff *skb, struct device *dev,
  33                                    struct options *opt, __u32 daddr,
  34                                    unsigned short len, __u32 saddr,
  35                                    int redo, struct inet_protocol *protocol);
  36   void                  (*err_handler)(int type, int code, unsigned char *buff,
  37                                        __u32 daddr,
  38                                        __u32 saddr,
  39                                        struct inet_protocol *protocol);
  40   struct inet_protocol *next;
  41   unsigned char         protocol;
  42   unsigned char         copy:1;
  43   void                  *data;
  44   const char            *name;
  45 };
  46 
  47 
  48 extern struct inet_protocol *inet_protocol_base;
  49 extern struct inet_protocol *inet_protos[MAX_INET_PROTOS];
  50 
  51 
  52 extern void             inet_add_protocol(struct inet_protocol *prot);
  53 extern int              inet_del_protocol(struct inet_protocol *prot);
  54 
  55 
  56 #endif  /* _PROTOCOL_H */
/* */
root/include/net/protocol.h

INCLUDED FROM
