tcp: make syn-rcvd timeout configurable

[vpp.git] / src / vnet / ip / ip4_inlines.h

diff --git a/src/vnet/ip/ip4_inlines.h b/src/vnet/ip/ip4_inlines.h
index bdb82af..b4fcebc 100644 (file)
--- a/src/vnet/ip/ip4_inlines.h
+++ b/src/vnet/ip/ip4_inlines.h
@@ -42,6 +42,8 @@
 
 #include <vnet/ip/ip_flow_hash.h>
 #include <vnet/ip/ip4_packet.h>
+#include <vnet/tcp/tcp_packet.h>
+#include <vnet/udp/udp_packet.h>
 
 #define IP_DF 0x4000           /* don't fragment */
 
@@ -52,9 +54,11 @@ ip4_compute_flow_hash (const ip4_header_t * ip,
                       flow_hash_config_t flow_hash_config)
 {
   tcp_header_t *tcp = (void *) (ip + 1);
+  udp_header_t *udp = (void *) (ip + 1);
+  gtpv1u_header_t *gtpu = (void *) (udp + 1);
   u32 a, b, c, t1, t2;
-  uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP
-                     || ip->protocol == IP_PROTOCOL_UDP);
+  uword is_udp = ip->protocol == IP_PROTOCOL_UDP;
+  uword is_tcp_udp = (ip->protocol == IP_PROTOCOL_TCP || is_udp);
 
   t1 = (flow_hash_config & IP_FLOW_HASH_SRC_ADDR)
     ? ip->src_address.data_u32 : 0;
@@ -89,6 +93,14 @@ ip4_compute_flow_hash (const ip4_header_t * ip,
   b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0;
   c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ?
     (t1 << 16) | t2 : (t2 << 16) | t1;
+  if (PREDICT_TRUE (is_udp) &&
+      PREDICT_FALSE ((flow_hash_config & IP_FLOW_HASH_GTPV1_TEID) &&
+                    udp->dst_port == GTPV1_PORT_BE))
+    {
+      t1 = gtpu->teid;
+      c ^= t1;
+    }
+  a ^= ip_flow_hash_router_id;
 
   hash_v3_mix32 (a, b, c);
   hash_v3_finalize32 (a, b, c);
@@ -97,9 +109,9 @@ ip4_compute_flow_hash (const ip4_header_t * ip,
 }
 
 always_inline void *
-vlib_buffer_push_ip4_custom (vlib_main_t * vm, vlib_buffer_t * b,
-                            ip4_address_t * src, ip4_address_t * dst,
-                            int proto, u8 csum_offload, u8 is_df)
+vlib_buffer_push_ip4_custom (vlib_main_t *vm, vlib_buffer_t *b,
+                            ip4_address_t *src, ip4_address_t *dst, int proto,
+                            u8 csum_offload, u8 is_df, u8 dscp)
 {
   ip4_header_t *ih;
 
@@ -107,7 +119,8 @@ vlib_buffer_push_ip4_custom (vlib_main_t * vm, vlib_buffer_t * b,
   ih = vlib_buffer_push_uninit (b, sizeof (ip4_header_t));
 
   ih->ip_version_and_header_length = 0x45;
-  ih->tos = 0;
+  ip4_header_set_dscp (ih, dscp);
+  ip4_header_set_ecn (ih, 0);
   ih->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b));
 
   /* No fragments */
@@ -124,7 +137,7 @@ vlib_buffer_push_ip4_custom (vlib_main_t * vm, vlib_buffer_t * b,
   if (csum_offload)
     {
       ih->checksum = 0;
-      b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
+      vnet_buffer_offload_flags_set (b, VNET_BUFFER_OFFLOAD_F_IP_CKSUM);
     }
   else
     ih->checksum = ip4_header_checksum (ih);
@@ -151,7 +164,7 @@ vlib_buffer_push_ip4 (vlib_main_t * vm, vlib_buffer_t * b,
                      u8 csum_offload)
 {
   return vlib_buffer_push_ip4_custom (vm, b, src, dst, proto, csum_offload,
-                                     1 /* is_df */ );
+                                     1 /* is_df */, 0);
 }
 
 #endif /* included_ip_ip4_inlines_h */