#ifndef __TUNNEL_DP_H__
#define __TUNNEL_DP_H__
+#include <vnet/tunnel/tunnel.h>
+
static_always_inline void
tunnel_encap_fixup_4o4 (tunnel_encap_decap_flags_t flags,
const ip4_header_t * inner, ip4_header_t * outer)
ip4_header_set_df (outer);
}
+static_always_inline void
+tunnel_encap_fixup_4o4_w_chksum (tunnel_encap_decap_flags_t flags,
+ const ip4_header_t * inner,
+ ip4_header_t * outer)
+{
+ if (flags & (TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP |
+ TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN))
+ {
+ ip_csum_t sum = outer->checksum;
+ u8 tos = outer->tos;
+
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ ip4_header_set_dscp (outer, ip4_header_get_dscp (inner));
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
+ ip4_header_set_ecn (outer, ip4_header_get_ecn (inner));
+
+ sum =
+ ip_csum_update (outer->checksum, tos, outer->tos, ip4_header_t, tos);
+ outer->checksum = ip_csum_fold (sum);
+ }
+ if ((flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DF) &&
+ ip4_header_get_df (inner))
+ {
+ ip_csum_t sum = outer->checksum;
+ u16 tos = outer->flags_and_fragment_offset;
+
+ ip4_header_set_df (outer);
+
+ sum =
+ ip_csum_update (outer->checksum, tos, outer->tos, ip4_header_t,
+ flags_and_fragment_offset);
+ outer->checksum = ip_csum_fold (sum);
+ }
+}
+
+static_always_inline void
+tunnel_encap_fixup_mplso4_w_chksum (tunnel_encap_decap_flags_t flags,
+ const mpls_unicast_header_t *inner,
+ ip4_header_t *outer)
+{
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ {
+ ip_csum_t sum = outer->checksum;
+ u8 tos = outer->tos;
+
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ ip4_header_set_dscp (outer,
+ vnet_mpls_uc_get_exp (inner->label_exp_s_ttl));
+
+ sum =
+ ip_csum_update (outer->checksum, tos, outer->tos, ip4_header_t, tos);
+ outer->checksum = ip_csum_fold (sum);
+ }
+}
+
static_always_inline void
tunnel_encap_fixup_6o4 (tunnel_encap_decap_flags_t flags,
const ip6_header_t * inner, ip4_header_t * outer)
ip4_header_set_ecn (outer, ip6_ecn_network_order ((inner)));
}
+static_always_inline void
+tunnel_encap_fixup_6o4_w_chksum (tunnel_encap_decap_flags_t flags,
+ const ip6_header_t * inner,
+ ip4_header_t * outer)
+{
+ if (flags & (TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP |
+ TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN))
+ {
+ ip_csum_t sum = outer->checksum;
+ u8 tos = outer->tos;
+
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ ip4_header_set_dscp (outer, ip6_dscp_network_order (inner));
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_ECN)
+ ip4_header_set_ecn (outer, ip6_ecn_network_order ((inner)));
+
+ sum =
+ ip_csum_update (outer->checksum, tos, outer->tos, ip4_header_t, tos);
+ outer->checksum = ip_csum_fold (sum);
+ }
+}
+
static_always_inline void
tunnel_encap_fixup_6o6 (tunnel_encap_decap_flags_t flags,
const ip6_header_t * inner, ip6_header_t * outer)
ip6_set_ecn_network_order (outer, ip4_header_get_ecn (inner));
}
+static_always_inline void
+tunnel_encap_fixup_mplso6 (tunnel_encap_decap_flags_t flags,
+ const mpls_unicast_header_t *inner,
+ ip6_header_t *outer)
+{
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ ip6_set_dscp_network_order (outer,
+ vnet_mpls_uc_get_exp (inner->label_exp_s_ttl));
+}
+
+static_always_inline void
+tunnel_encap_fixup_mplso4 (tunnel_encap_decap_flags_t flags,
+ const mpls_unicast_header_t *inner,
+ ip4_header_t *outer)
+{
+ if (flags & TUNNEL_ENCAP_DECAP_FLAG_ENCAP_COPY_DSCP)
+ ip4_header_set_dscp (outer, vnet_mpls_uc_get_exp (inner->label_exp_s_ttl));
+}
+
static_always_inline void
tunnel_decap_fixup_4o6 (tunnel_encap_decap_flags_t flags,
ip4_header_t * inner, const ip6_header_t * outer)
ip4_header_set_ecn_w_chksum (inner, ip4_header_get_ecn (outer));
}
+static_always_inline void
+tunnel_decap_fixup_mplso6 (tunnel_encap_decap_flags_t flags,
+ mpls_unicast_header_t *inner,
+ const ip6_header_t *outer)
+{
+}
+
+static_always_inline void
+tunnel_decap_fixup_mplso4 (tunnel_encap_decap_flags_t flags,
+ mpls_unicast_header_t *inner,
+ const ip4_header_t *outer)
+{
+}
+
#endif
/*