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https://github.com/openvswitch/ovs
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1c95839fee
To better represent the meaning of symbol. Signed-off-by: Pravin B Shelar <pshelar@ovn.org> Acked-by: Jesse Gross <jesse@kernel.org>
73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
#ifndef __LINUX_GRE_WRAPPER_H
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#define __LINUX_GRE_WRAPPER_H
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#include <linux/version.h>
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#include <linux/skbuff.h>
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#include <net/ip_tunnels.h>
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#ifdef USE_UPSTREAM_TUNNEL
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#include_next <net/gre.h>
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static inline int rpl_ipgre_init(void)
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{
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return 0;
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}
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static inline void rpl_ipgre_fini(void)
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{}
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#define gre_fb_xmit dev_queue_xmit
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#else
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37) || \
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defined(HAVE_GRE_CISCO_REGISTER)
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#include_next <net/gre.h>
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#endif
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#ifndef HAVE_GRE_CISCO_REGISTER
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/* GRE demux not available, implement our own demux. */
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#define MAX_GRE_PROTO_PRIORITY 255
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struct gre_cisco_protocol {
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int (*handler)(struct sk_buff *skb, const struct tnl_ptk_info *tpi);
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int (*err_handler)(struct sk_buff *skb, u32 info,
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const struct tnl_ptk_info *tpi);
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u8 priority;
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};
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#define gre_cisco_register rpl_gre_cisco_register
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int rpl_gre_cisco_register(struct gre_cisco_protocol *proto);
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#define gre_cisco_unregister rpl_gre_cisco_unregister
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int rpl_gre_cisco_unregister(struct gre_cisco_protocol *proto);
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#ifndef GRE_HEADER_SECTION
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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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#endif
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#endif /* HAVE_GRE_CISCO_REGISTER */
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int rpl_ipgre_init(void);
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void rpl_ipgre_fini(void);
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#define gretap_fb_dev_create rpl_gretap_fb_dev_create
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struct net_device *rpl_gretap_fb_dev_create(struct net *net, const char *name,
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u8 name_assign_type);
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#define gre_fb_xmit rpl_gre_fb_xmit
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netdev_tx_t rpl_gre_fb_xmit(struct sk_buff *skb);
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#endif /* USE_UPSTREAM_TUNNEL */
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#define ipgre_init rpl_ipgre_init
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#define ipgre_fini rpl_ipgre_fini
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#define gre_fill_metadata_dst ovs_gre_fill_metadata_dst
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int ovs_gre_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb);
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#endif
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