ipsec: Support MPLS over IPSec[46] interface
Type: feature
Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I89dc3815eabfee135cd5b3c910dea5e2e2ef1333
diff --git a/src/vnet/tunnel/tunnel_dp.h b/src/vnet/tunnel/tunnel_dp.h
index d6f07b5..deef408 100644
--- a/src/vnet/tunnel/tunnel_dp.h
+++ b/src/vnet/tunnel/tunnel_dp.h
@@ -69,6 +69,26 @@
}
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)
{