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-rw-r--r--src/vnet/rewrite.h30
1 files changed, 23 insertions, 7 deletions
diff --git a/src/vnet/rewrite.h b/src/vnet/rewrite.h
index ce2bce3a3c8..8435a726553 100644
--- a/src/vnet/rewrite.h
+++ b/src/vnet/rewrite.h
@@ -46,14 +46,22 @@
/* Consider using vector types for speed? */
typedef uword vnet_rewrite_data_t;
+/**
+ * Flags associated with the rewrite/adjacency
+ */
+typedef enum vnet_rewrite_flags_t_
+{
+ /**
+ * This adjacency/interface has output features configured
+ */
+ VNET_REWRITE_HAS_FEATURES = (1 << 0),
+} __attribute__ ((packed)) vnet_rewrite_flags_t;
+
/* *INDENT-OFF* */
typedef CLIB_PACKED (struct {
/* Interface to mark re-written packets with. */
u32 sw_if_index;
- /* Packet processing node where rewrite happens. */
- u32 node_index;
-
/* Next node to feed after packet rewrite is done. */
u16 next_index;
@@ -64,6 +72,11 @@ typedef CLIB_PACKED (struct {
Used for MTU check after packet rewrite. */
u16 max_l3_packet_bytes;
+ u16 unused1;
+ u8 unused2;
+
+ vnet_rewrite_flags_t flags;
+
/* When dynamically writing a multicast destination L2 addresss
* this is the offset within the address to start writing n
* bytes of the IP mcast address */
@@ -79,6 +92,13 @@ typedef CLIB_PACKED (struct {
}) vnet_rewrite_header_t;
/* *INDENT-ON* */
+/**
+ * At 16 bytes of rewrite herader we have enought space left for a IPv6
+ * (40 bytes) + LISP-GPE (8 bytes) in the cache line
+ */
+STATIC_ASSERT (sizeof (vnet_rewrite_header_t) <= 16,
+ "Rewrite header too big");
+
/*
Helper macro for declaring rewrite string w/ given max-size.
@@ -317,11 +337,7 @@ u8 *vnet_build_rewrite_for_sw_interface (struct vnet_main_t *vnm,
void vnet_update_adjacency_for_sw_interface (struct vnet_main_t *vnm,
u32 sw_if_index, u32 ai);
-/* Parser for unformat header & rewrite string. */
-unformat_function_t unformat_vnet_rewrite;
-
format_function_t format_vnet_rewrite;
-format_function_t format_vnet_rewrite_header;
serialize_function_t serialize_vnet_rewrite, unserialize_vnet_rewrite;