L2FWD:fix seq_num overwritten + validate l2fib entries when forwarding

[vpp.git] / src / vnet / buffer.h

diff --git a/src/vnet/buffer.h b/src/vnet/buffer.h
index ed869d1..795bbd9 100644 (file)
--- a/src/vnet/buffer.h
+++ b/src/vnet/buffer.h
@@ -83,7 +83,8 @@ _(policer)                                      \
 _(ipsec)                                       \
 _(map)                                         \
 _(map_t)                                       \
-_(ip_frag)
+_(ip_frag)                                     \
+_(tcp)
 
 /*
  * vnet stack buffer opaque array overlay structure.
@@ -175,8 +176,7 @@ typedef struct
       u16 bd_index;            /* bridge-domain index */
       u8 l2_len;               /* ethernet header length */
       u8 shg;                  /* split-horizon group */
-      u8 bd_sn;                        /* bridge domain seq# */
-      u8 int_sn;               /* interface seq# */
+      u16 l2fib_sn;            /* l2fib bd/int seq_num */
     } l2;
 
     /* l2tpv3 softwire encap, only valid there */
@@ -195,9 +195,13 @@ typedef struct
     /* L2 classify */
     struct
     {
-      u64 pad;
-      u32 table_index;
-      u32 opaque_index;
+      u64 pad;                 /* paddind for l2 */
+      u16 pad1;
+      union
+      {
+       u32 table_index;
+       u32 opaque_index;
+      };
       u64 hash;
     } l2_classify;
 
@@ -279,6 +283,9 @@ typedef struct
       u32 seq_number;
       u32 seq_end;
       u32 ack_number;
+      u16 hdr_offset;          /**< offset relative to ip hdr */
+      u16 data_offset;         /**< offset relative to ip hdr */
+      u16 data_len;            /**< data len */
       u8 flags;
     } tcp;
 
@@ -293,6 +300,11 @@ typedef struct
 STATIC_ASSERT (sizeof (vnet_buffer_opaque_t) <= STRUCT_SIZE_OF (vlib_buffer_t,
                                                                opaque),
               "VNET buffer meta-data too large for vlib_buffer");
+STATIC_ASSERT (STRUCT_OFFSET_OF
+              (vnet_buffer_opaque_t,
+               l2_classify.table_index) >=
+              STRUCT_SIZE_OF (vnet_buffer_opaque_t, l2),
+              "l2_classify padding smaller than l2");
 
 #define vnet_buffer(b) ((vnet_buffer_opaque_t *) (b)->opaque)