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f62f550420
tnl_flags_to_gre_flags is also needed in both ip_gre.c and gre.c on some kernels. Move it from ip_gre.c to the common header. Signed-off-by: Greg Rose <gvrose8192@gmail.com> Signed-off-by: Ben Pfaff <blp@ovn.org> Acked-by: William Tu <u9012063@gmail.com>
111 lines
2.7 KiB
C
111 lines
2.7 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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#ifdef CONFIG_INET
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#ifndef HAVE_NAME_ASSIGN_TYPE
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static inline struct net_device *rpl_gretap_fb_dev_create(
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struct net *net, const char *name, u8 name_assign_type) {
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return gretap_fb_dev_create(net, name);
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}
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#define gretap_fb_dev_create rpl_gretap_fb_dev_create
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#endif
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#endif
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#else
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#include_next <net/gre.h>
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#define tnl_flags_to_gre_flags rpl_tnl_flags_to_gre_flags
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static inline __be16 tnl_flags_to_gre_flags(__be16 tflags)
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{
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__be16 flags = 0;
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if (tflags & TUNNEL_CSUM)
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flags |= GRE_CSUM;
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if (tflags & TUNNEL_ROUTING)
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flags |= GRE_ROUTING;
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if (tflags & TUNNEL_KEY)
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flags |= GRE_KEY;
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if (tflags & TUNNEL_SEQ)
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flags |= GRE_SEQ;
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if (tflags & TUNNEL_STRICT)
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flags |= GRE_STRICT;
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if (tflags & TUNNEL_REC)
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flags |= GRE_REC;
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if (tflags & TUNNEL_VERSION)
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flags |= GRE_VERSION;
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return flags;
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}
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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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#define gre_build_header rpl_gre_build_header
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void rpl_gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
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int hdr_len);
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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_parse_header rpl_gre_parse_header
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int rpl_gre_parse_header(struct sk_buff *skb, struct tnl_ptk_info *tpi,
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bool *csum_err, __be16 proto, int nhs);
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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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