tcp: IPv6 flow label support

[vpp.git] / src / vnet / tcp / tcp_output.c

diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index 71e9d7b..c7e9792 100644 (file)
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -842,8 +842,10 @@ tcp_send_reset_w_pkt (tcp_connection_t * tc, vlib_buffer_t * pkt,
       int bogus = ~0;
       ASSERT ((pkt_ih6->ip_version_traffic_class_and_flow_label & 0xF0) ==
              0x60);
-      ih6 = vlib_buffer_push_ip6 (vm, b, &pkt_ih6->dst_address,
-                                 &pkt_ih6->src_address, IP_PROTOCOL_TCP);
+      ih6 = vlib_buffer_push_ip6_custom (vm, b, &pkt_ih6->dst_address,
+                                        &pkt_ih6->src_address,
+                                        IP_PROTOCOL_TCP,
+                                        tc->ipv6_flow_label);
       th->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ih6, &bogus);
       ASSERT (!bogus);
     }
@@ -909,8 +911,9 @@ tcp_push_ip_hdr (tcp_worker_ctx_t * wrk, tcp_connection_t * tc,
       ip6_header_t *ih;
       int bogus = ~0;
 
-      ih = vlib_buffer_push_ip6 (vm, b, &tc->c_lcl_ip6,
-                                &tc->c_rmt_ip6, IP_PROTOCOL_TCP);
+      ih = vlib_buffer_push_ip6_custom (vm, b, &tc->c_lcl_ip6,
+                                       &tc->c_rmt_ip6, IP_PROTOCOL_TCP,
+                                       tc->ipv6_flow_label);
       th->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ih, &bogus);
       ASSERT (!bogus);
     }
@@ -2278,8 +2281,9 @@ tcp_output_push_ip (vlib_main_t * vm, vlib_buffer_t * b0,
     ih0 = vlib_buffer_push_ip4 (vm, b0, &tc0->c_lcl_ip4, &tc0->c_rmt_ip4,
                                IP_PROTOCOL_TCP, tcp_csum_offload (tc0));
   else
-    ih0 = vlib_buffer_push_ip6 (vm, b0, &tc0->c_lcl_ip6, &tc0->c_rmt_ip6,
-                               IP_PROTOCOL_TCP);
+    ih0 =
+      vlib_buffer_push_ip6_custom (vm, b0, &tc0->c_lcl_ip6, &tc0->c_rmt_ip6,
+                                  IP_PROTOCOL_TCP, tc0->ipv6_flow_label);
 
 }