From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/net/protocol.h | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 include/net/protocol.h (limited to 'include/net/protocol.h') diff --git a/include/net/protocol.h b/include/net/protocol.h new file mode 100644 index 000000000000..357691f6a45f --- /dev/null +++ b/include/net/protocol.h @@ -0,0 +1,99 @@ +/* + * 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, + * + * 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 +#include +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) +#include +#endif + +#define MAX_INET_PROTOS 256 /* Must be a power of 2 */ + + +/* This is used to register protocols. */ +struct net_protocol { + int (*handler)(struct sk_buff *skb); + void (*err_handler)(struct sk_buff *skb, u32 info); + int no_policy; +}; + +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) +struct inet6_protocol +{ + int (*handler)(struct sk_buff **skb, unsigned int *nhoffp); + + void (*err_handler)(struct sk_buff *skb, + struct inet6_skb_parm *opt, + int type, int code, int offset, + __u32 info); + unsigned int flags; /* INET6_PROTO_xxx */ +}; + +#define INET6_PROTO_NOPOLICY 0x1 +#define INET6_PROTO_FINAL 0x2 +#endif + +/* This is used to register socket interfaces for IP protocols. */ +struct inet_protosw { + struct list_head list; + + /* These two fields form the lookup key. */ + unsigned short type; /* This is the 2nd argument to socket(2). */ + int protocol; /* This is the L4 protocol number. */ + + struct proto *prot; + struct proto_ops *ops; + + int capability; /* Which (if any) capability do + * we need to use this socket + * interface? + */ + char no_check; /* checksum on rcv/xmit/none? */ + unsigned char flags; /* See INET_PROTOSW_* below. */ +}; +#define INET_PROTOSW_REUSE 0x01 /* Are ports automatically reusable? */ +#define INET_PROTOSW_PERMANENT 0x02 /* Permanent protocols are unremovable. */ + +extern struct net_protocol *inet_protocol_base; +extern struct net_protocol *inet_protos[MAX_INET_PROTOS]; + +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) +extern struct inet6_protocol *inet6_protos[MAX_INET_PROTOS]; +#endif + +extern int inet_add_protocol(struct net_protocol *prot, unsigned char num); +extern int inet_del_protocol(struct net_protocol *prot, unsigned char num); +extern void inet_register_protosw(struct inet_protosw *p); +extern void inet_unregister_protosw(struct inet_protosw *p); + +#if defined(CONFIG_IPV6) || defined (CONFIG_IPV6_MODULE) +extern int inet6_add_protocol(struct inet6_protocol *prot, unsigned char num); +extern int inet6_del_protocol(struct inet6_protocol *prot, unsigned char num); +extern void inet6_register_protosw(struct inet_protosw *p); +extern void inet6_unregister_protosw(struct inet_protosw *p); +#endif + +#endif /* _PROTOCOL_H */ -- cgit v1.2.3-59-g8ed1b