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40 #ifndef OPENVSWITCH_TUNNEL_H
41 #define OPENVSWITCH_TUNNEL_H 1
43 #include <linux/types.h>
44 #include "openvswitch/datapath-protocol.h"
46 /* ODP_VPORT_ATTR_OPTIONS attributes for tunnels.
48 * ODP_TUNNEL_ATTR_FLAGS and ODP_TUNNEL_ATTR_DST_IPV4 are required. All other
49 * attributes are optional.
52 ODP_TUNNEL_ATTR_UNSPEC,
53 ODP_TUNNEL_ATTR_FLAGS, /* 32-bit TNL_F_*. */
54 ODP_TUNNEL_ATTR_DST_IPV4, /* IPv4 destination address. */
55 ODP_TUNNEL_ATTR_SRC_IPV4, /* IPv4 source address. */
56 ODP_TUNNEL_ATTR_OUT_KEY, /* __be64 key to use on output. */
57 ODP_TUNNEL_ATTR_IN_KEY, /* __be64 key to match on input. */
58 ODP_TUNNEL_ATTR_TOS, /* 8-bit TOS value. */
59 ODP_TUNNEL_ATTR_TTL, /* 8-bit TTL value. */
63 #define ODP_TUNNEL_ATTR_MAX (__ODP_TUNNEL_ATTR_MAX - 1)
65 #define TNL_F_CSUM (1 << 0) /* Checksum packets. */
66 #define TNL_F_TOS_INHERIT (1 << 1) /* Inherit the ToS from the inner packet. */
67 #define TNL_F_TTL_INHERIT (1 << 2) /* Inherit the TTL from the inner packet. */
68 #define TNL_F_DF_INHERIT (1 << 3) /* Inherit the DF bit from the inner packet. */
69 #define TNL_F_DF_DEFAULT (1 << 4) /* Set the DF bit if inherit off or not IP. */
70 #define TNL_F_PMTUD (1 << 5) /* Enable path MTU discovery. */
71 #define TNL_F_HDR_CACHE (1 << 6) /* Enable tunnel header caching. */
72 #define TNL_F_IPSEC (1 << 7) /* Traffic is IPsec encrypted. */
74 #endif /* openvswitch/tunnel.h */