29 lines
661 B
C
29 lines
661 B
C
#ifndef __LINUX_GRE_H
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#define __LINUX_GRE_H
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#include <linux/skbuff.h>
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#include <net/ip_tunnels.h>
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struct gre_base_hdr {
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__be16 flags;
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__be16 protocol;
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};
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#define GRE_HEADER_SECTION 4
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#define GREPROTO_CISCO 0
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#define GREPROTO_PPTP 1
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#define GREPROTO_MAX 2
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#define GRE_IP_PROTO_MAX 2
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struct gre_protocol {
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int (*handler)(struct sk_buff *skb);
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void (*err_handler)(struct sk_buff *skb, u32 info);
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};
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int gre_add_protocol(const struct gre_protocol *proto, u8 version);
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int gre_del_protocol(const struct gre_protocol *proto, u8 version);
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struct net_device *gretap_fb_dev_create(struct net *net, const char *name,
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u8 name_assign_type);
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#endif
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