dpdk: fix udp-encap for esp in transport mode

[vpp.git] / src / plugins / dpdk / ipsec / esp_decrypt.c

diff --git a/src/plugins/dpdk/ipsec/esp_decrypt.c b/src/plugins/dpdk/ipsec/esp_decrypt.c
index 3152516..ae35ab5 100644 (file)
--- a/src/plugins/dpdk/ipsec/esp_decrypt.c
+++ b/src/plugins/dpdk/ipsec/esp_decrypt.c
@@ -616,16 +616,14 @@ dpdk_esp_decrypt_post_inline (vlib_main_t * vm,
              if ((ih4->ip_version_and_header_length & 0xF0) == 0x40)
                {
                  u16 ih4_len = ip4_header_bytes (ih4);
-                 vlib_buffer_advance (b0, -ih4_len - udp_encap_adv);
+                 vlib_buffer_advance (b0, -ih4_len);
                  next0 = ESP_DECRYPT_NEXT_IP4_INPUT;
-                 if (!ipsec_sa_is_set_UDP_ENCAP (sa0))
-                   {
-                     oh4 = vlib_buffer_get_current (b0);
-                     memmove (oh4, ih4, ih4_len);
-                     oh4->protocol = f0->next_header;
-                     oh4->length = clib_host_to_net_u16 (b0->current_length);
-                     oh4->checksum = ip4_header_checksum (oh4);
-                   }
+
+                 oh4 = vlib_buffer_get_current (b0);
+                 memmove (oh4, ih4, ih4_len);
+                 oh4->protocol = f0->next_header;
+                 oh4->length = clib_host_to_net_u16 (b0->current_length);
+                 oh4->checksum = ip4_header_checksum (oh4);
                }
              else if ((ih4->ip_version_and_header_length & 0xF0) == 0x60)
                {