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authorNeale Ranns <nranns@cisco.com>2020-12-21 13:19:10 +0000
committerOle Tr�an <otroan@employees.org>2021-01-18 08:35:52 +0000
commit4a58e49cfe03150034a65e147a2ffe8d24391b86 (patch)
treea929278e8a40067c1d103cf75174aa83f334c26e /src/vnet/tunnel
parent20399f8f3a27d54f65c4aff92998a2a345a7adab (diff)
ipsec: Support MPLS over IPSec[46] interface
Type: feature Signed-off-by: Neale Ranns <nranns@cisco.com> Change-Id: I89dc3815eabfee135cd5b3c910dea5e2e2ef1333
Diffstat (limited to 'src/vnet/tunnel')
-rw-r--r--src/vnet/tunnel/tunnel_dp.h20
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)
{