diff options
Diffstat (limited to 'src/vnet/tunnel/tunnel_dp.h')
| -rw-r--r-- | src/vnet/tunnel/tunnel_dp.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/vnet/tunnel/tunnel_dp.h b/src/vnet/tunnel/tunnel_dp.h index d6f07b5ec21..deef4085a67 100644 --- a/src/vnet/tunnel/tunnel_dp.h +++ b/src/vnet/tunnel/tunnel_dp.h @@ -69,6 +69,26 @@ tunnel_encap_fixup_4o4_w_chksum (tunnel_encap_decap_flags_t flags, } 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) { |