[HICN-75] fixed forwarding issue in udp face and improved packet tracing to show the hicn name

Change-Id: I74426c541324d66c2d1b0353afcca17c5aedceba
Signed-off-by: Alberto Compagno <acompagn+fdio@cisco.com>

1 files changed, 18 insertions, 11 deletions

diff --git a/hicn-plugin/src/faces/udp/face_udp_node.c b/hicn-plugin/src/faces/udp/face_udp_node.c
index a8851ad79..5f19eb0af 100644
--- a/hicn-plugin/src/faces/udp/face_udp_node.c
+++ b/hicn-plugin/src/faces/udp/face_udp_node.c
@@ -54,7 +54,7 @@ typedef struct
   u32 next_index;
   u32 sw_if_index;
   u8 pkt_type;
-  u8 packet_data[128 - 1 * sizeof (u32)];
+  u8 packet_data[60];
 }
 hicn_face_udp4_input_trace_t;
 
@@ -72,7 +72,7 @@ typedef struct
   u32 next_index;
   u32 sw_if_index;
   u8 pkt_type;
-  u8 packet_data[128 - 1 * sizeof (u32)];
+  u8 packet_data[60];
 }
 hicn_face_udp6_input_trace_t;
 
@@ -101,6 +101,10 @@ typedef enum
 #define TRACE_INPUT_PKT_UDP4 hicn_face_udp4_input_trace_t
 #define TRACE_INPUT_PKT_UDP6 hicn_face_udp6_input_trace_t
 
+#define SIZE_HICN_HEADER4 sizeof(ip4_header_t) + sizeof(udp_header_t)
+#define SIZE_HICN_HEADER6 sizeof(ip6_header_t) + sizeof(udp_header_t)
+
+
 #define face_input_x1(ipv)                                          \
   do {                                                              \
     int ret;                                                        \
@@ -359,7 +363,7 @@ hicn_face_udp4_input_format_trace (u8 * s, va_list * args)
   s =
     format (s, "FACE_UDP4_INPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
 	    (int) t->pkt_type, t->sw_if_index, t->next_index,
-	    t->packet_data[0] == 4 ? format_ip4_header : format_ip6_header,
+	    (t->packet_data[0] & 0xf0) == 0x40 ? format_ip4_header : format_ip6_header,
 	    t->packet_data, sizeof (t->packet_data));
   return (s);
 }
@@ -440,7 +444,7 @@ hicn_face_udp6_input_format_trace (u8 * s, va_list * args)
   s =
     format (s, "FACE_UDP6_INPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
 	    (int) t->pkt_type, t->sw_if_index, t->next_index,
-	    t->packet_data[0] == 4 ? format_ip4_header : format_ip6_header,
+	    (t->packet_data[0] & 0xf0) == 0x40 ? format_ip4_header : format_ip6_header,
 	    t->packet_data, sizeof (t->packet_data));
   return (s);
 }
@@ -570,7 +574,7 @@ typedef struct
   u32 next_index;
   u32 sw_if_index;
   u8 pkt_type;
-  u8 packet_data[128 - 1 * sizeof (u32)];
+  u8 packet_data[60];
 }
 hicn_face_udp4_output_trace_t;
 
@@ -580,7 +584,7 @@ typedef struct
   u32 next_index;
   u32 sw_if_index;
   u8 pkt_type;
-  u8 packet_data[128 - 1 * sizeof (u32)];
+  u8 packet_data[60];
 }
 hicn_face_udp6_output_trace_t;
 
@@ -639,7 +643,8 @@ hicn_face_udp6_output_trace_t;
       t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];          \
       t->next_index = next0;                                            \
       clib_memcpy_fast (t->packet_data,					\
-			vlib_buffer_get_current (b0),			\
+			vlib_buffer_get_current (b0) +                  \
+                        SIZE_HICN_HEADER##ipv,                          \
 			sizeof (t->packet_data));			\
     }                                                                   \
                                                                         \
@@ -726,7 +731,8 @@ hicn_face_udp6_output_trace_t;
         t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];        \
         t->next_index = next0;                                          \
 	clib_memcpy_fast (t->packet_data,				\
-			  vlib_buffer_get_current (b0),			\
+			  vlib_buffer_get_current (b0) +                \
+                          SIZE_HICN_HEADER##ipv,			\
 			  sizeof (t->packet_data));			\
       }                                                                 \
                                                                         \
@@ -740,7 +746,8 @@ hicn_face_udp6_output_trace_t;
         t->sw_if_index = vnet_buffer (b1)->sw_if_index[VLIB_RX];        \
         t->next_index = next1;                                          \
 	clib_memcpy_fast (t->packet_data,				\
-			  vlib_buffer_get_current (b1),			\
+			  vlib_buffer_get_current (b1) +                \
+                          SIZE_HICN_HEADER##ipv,			\
 			  sizeof (t->packet_data));			\
       }                                                                 \
     /* Verify speculative enqueue, maybe switch current next frame */   \
@@ -800,7 +807,7 @@ hicn_face_udp4_output_format_trace (u8 * s, va_list * args)
   s =
     format (s, "FACE_UDP4_OUTPUT: pkt: %d, sw_if_index %d, next index %d\n%U",
 	    (int) t->pkt_type, t->sw_if_index, t->next_index,
-	    t->packet_data[0] == 4 ? format_ip4_header : format_ip6_header,
+	    (t->packet_data[0] & 0xf0) == 0x40 ? format_ip4_header : format_ip6_header,
 	    t->packet_data, sizeof (t->packet_data));
   return (s);
 }
@@ -876,7 +883,7 @@ hicn_face_udp6_output_format_trace (u8 * s, va_list * args)
   s =
     format (s, "FACE_UDP6_OUTPUT: pkt: %d, sw_if_index %d, next index %d\n%u",
 	    (int) t->pkt_type, t->sw_if_index, t->next_index,
-	    t->packet_data[0] == 4 ? format_ip4_header : format_ip6_header,
+	    (t->packet_data[0] & 0xf0) == 0x40 ? format_ip4_header : format_ip6_header,
 	    t->packet_data, sizeof (t->packet_data));
   return (s);
 }