docs: Add VPP API language documentation

[vpp.git] / src / plugins / gtpu / gtpu_encap.c

diff --git a/src/plugins/gtpu/gtpu_encap.c b/src/plugins/gtpu/gtpu_encap.c
index 4442c42..d102a35 100644 (file)
--- a/src/plugins/gtpu/gtpu_encap.c
+++ b/src/plugins/gtpu/gtpu_encap.c
@@ -48,23 +48,6 @@ typedef enum {
     GTPU_ENCAP_N_NEXT,
 } gtpu_encap_next_t;
 
-typedef struct {
-  u32 tunnel_index;
-  u32 teid;
-} gtpu_encap_trace_t;
-
-u8 * format_gtpu_encap_trace (u8 * s, va_list * args)
-{
-  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
-  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
-  gtpu_encap_trace_t * t
-      = va_arg (*args, gtpu_encap_trace_t *);
-
-  s = format (s, "GTPU encap to gtpu_tunnel%d teid %d",
-             t->tunnel_index, t->teid);
-  return s;
-}
-
 
 #define foreach_fixed_header4_offset            \
     _(0) _(1) _(2) _(3)
@@ -380,24 +363,6 @@ gtpu_encap_inline (vlib_main_t * vm,
              udp3->length = new_l3;
              udp3->src_port = flow_hash3;
 
-             /* IPv6 UDP checksum is mandatory */
-             udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0,
-                                                                ip6_0, &bogus);
-             if (udp0->checksum == 0)
-               udp0->checksum = 0xffff;
-             udp1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b1,
-                                                        ip6_1, &bogus);
-             if (udp1->checksum == 0)
-               udp1->checksum = 0xffff;
-             udp2->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b2,
-                                                                ip6_2, &bogus);
-             if (udp2->checksum == 0)
-               udp2->checksum = 0xffff;
-             udp3->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b3,
-                                                        ip6_3, &bogus);
-             if (udp3->checksum == 0)
-               udp3->checksum = 0xffff;
-
              /* Fix GTPU length */
              gtpu0 = (gtpu_header_t *)(udp0+1);
              new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain(vm, b0)
@@ -419,6 +384,25 @@ gtpu_encap_inline (vlib_main_t * vm,
                                             - sizeof (*ip6_3) - sizeof(*udp3)
                                             - GTPU_V1_HDR_LEN);
              gtpu3->length = new_l3;
+
+             /* IPv6 UDP checksum is mandatory */
+             udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0,
+                                                                ip6_0, &bogus);
+             if (udp0->checksum == 0)
+               udp0->checksum = 0xffff;
+             udp1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b1,
+                                                                ip6_1, &bogus);
+             if (udp1->checksum == 0)
+               udp1->checksum = 0xffff;
+             udp2->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b2,
+                                                                ip6_2, &bogus);
+             if (udp2->checksum == 0)
+               udp2->checksum = 0xffff;
+             udp3->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b3,
+                                                                ip6_3, &bogus);
+             if (udp3->checksum == 0)
+               udp3->checksum = 0xffff;
+
            }
 
           pkts_encapsulated += 4;
@@ -592,18 +576,18 @@ gtpu_encap_inline (vlib_main_t * vm,
              udp0->length = new_l0;
              udp0->src_port = flow_hash0;
 
-             /* IPv6 UDP checksum is mandatory */
-             udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0,
-                                                                ip6_0, &bogus);
-             if (udp0->checksum == 0)
-               udp0->checksum = 0xffff;
-
              /* Fix GTPU length */
              gtpu0 = (gtpu_header_t *)(udp0+1);
              new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain(vm, b0)
                                             - sizeof (*ip4_0) - sizeof(*udp0)
                                             - GTPU_V1_HDR_LEN);
              gtpu0->length = new_l0;
+
+             /* IPv6 UDP checksum is mandatory */
+             udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0,
+                                                                ip6_0, &bogus);
+             if (udp0->checksum == 0)
+               udp0->checksum = 0xffff;
            }
 
           pkts_encapsulated ++;
@@ -661,16 +645,14 @@ gtpu_encap_inline (vlib_main_t * vm,
   return from_frame->n_vectors;
 }
 
-static uword
-gtpu4_encap (vlib_main_t * vm,
+VLIB_NODE_FN (gtpu4_encap_node) (vlib_main_t * vm,
              vlib_node_runtime_t * node,
              vlib_frame_t * from_frame)
 {
   return gtpu_encap_inline (vm, node, from_frame, /* is_ip4 */ 1);
 }
 
-static uword
-gtpu6_encap (vlib_main_t * vm,
+VLIB_NODE_FN (gtpu6_encap_node) (vlib_main_t * vm,
              vlib_node_runtime_t * node,
              vlib_frame_t * from_frame)
 {
@@ -678,7 +660,6 @@ gtpu6_encap (vlib_main_t * vm,
 }
 
 VLIB_REGISTER_NODE (gtpu4_encap_node) = {
-  .function = gtpu4_encap,
   .name = "gtpu4-encap",
   .vector_size = sizeof (u32),
   .format_trace = format_gtpu_encap_trace,
@@ -693,10 +674,7 @@ VLIB_REGISTER_NODE (gtpu4_encap_node) = {
   },
 };
 
-VLIB_NODE_FUNCTION_MULTIARCH (gtpu4_encap_node, gtpu4_encap)
-
 VLIB_REGISTER_NODE (gtpu6_encap_node) = {
-  .function = gtpu6_encap,
   .name = "gtpu6-encap",
   .vector_size = sizeof (u32),
   .format_trace = format_gtpu_encap_trace,
@@ -711,5 +689,3 @@ VLIB_REGISTER_NODE (gtpu6_encap_node) = {
   },
 };
 
-VLIB_NODE_FUNCTION_MULTIARCH (gtpu6_encap_node, gtpu6_encap)
-