#include <vlib/vlib.h>
-/* VLIB buffer flags for ip4/ip6 packets. Set by input interfaces for ip4/ip6
- tcp/udp packets with hardware computed checksums. */
-#define LOG2_IP_BUFFER_L4_CHECKSUM_COMPUTED LOG2_VLIB_BUFFER_FLAG_USER(1)
-#define LOG2_IP_BUFFER_L4_CHECKSUM_CORRECT LOG2_VLIB_BUFFER_FLAG_USER(2)
-#define IP_BUFFER_L4_CHECKSUM_COMPUTED (1 << LOG2_IP_BUFFER_L4_CHECKSUM_COMPUTED)
-#define IP_BUFFER_L4_CHECKSUM_CORRECT (1 << LOG2_IP_BUFFER_L4_CHECKSUM_CORRECT)
-
-/* VLAN header flags.
- * These bits are zeroed in vlib_buffer_init_for_free_list()
- * meaning wherever the buffer comes from they have a reasonable
- * value (eg, if ip4/ip6 generates the packet.)
- */
-#define LOG2_ETH_BUFFER_VLAN_2_DEEP LOG2_VLIB_BUFFER_FLAG_USER(3)
-#define LOG2_ETH_BUFFER_VLAN_1_DEEP LOG2_VLIB_BUFFER_FLAG_USER(4)
-#define ETH_BUFFER_VLAN_2_DEEP (1 << LOG2_ETH_BUFFER_VLAN_2_DEEP)
-#define ETH_BUFFER_VLAN_1_DEEP (1 << LOG2_ETH_BUFFER_VLAN_1_DEEP)
-#define ETH_BUFFER_VLAN_BITS (ETH_BUFFER_VLAN_1_DEEP | \
- ETH_BUFFER_VLAN_2_DEEP)
-
-#define LOG2_BUFFER_HANDOFF_NEXT_VALID LOG2_VLIB_BUFFER_FLAG_USER(6)
-#define BUFFER_HANDOFF_NEXT_VALID (1 << LOG2_BUFFER_HANDOFF_NEXT_VALID)
+#define foreach_vnet_buffer_field \
+ _( 1, L4_CHECKSUM_COMPUTED) \
+ _( 2, L4_CHECKSUM_CORRECT) \
+ _( 3, VLAN_2_DEEP) \
+ _( 4, VLAN_1_DEEP) \
+ _( 6, HANDOFF_NEXT_VALID) \
+ _( 7, LOCALLY_ORIGINATED) \
+ _( 8, SPAN_CLONE)
+
+#define VNET_BUFFER_FLAGS_VLAN_BITS \
+ (VNET_BUFFER_F_VLAN_1_DEEP | VNET_BUFFER_F_VLAN_2_DEEP)
+
+enum
+{
+#define _(bit, name) VNET_BUFFER_F_##name = (1 << LOG2_VLIB_BUFFER_FLAG_USER(bit)),
+ foreach_vnet_buffer_field
+#undef _
+};
-#define LOG2_VNET_BUFFER_LOCALLY_ORIGINATED LOG2_VLIB_BUFFER_FLAG_USER(7)
-#define VNET_BUFFER_LOCALLY_ORIGINATED (1 << LOG2_VNET_BUFFER_LOCALLY_ORIGINATED)
+enum
+{
+#define _(bit, name) VNET_BUFFER_F_LOG2_##name = LOG2_VLIB_BUFFER_FLAG_USER(bit),
+ foreach_vnet_buffer_field
+#undef _
+};
-#define LOG2_VNET_BUFFER_SPAN_CLONE LOG2_VLIB_BUFFER_FLAG_USER(8)
-#define VNET_BUFFER_SPAN_CLONE (1 << LOG2_VNET_BUFFER_SPAN_CLONE)
#define foreach_buffer_opaque_union_subtype \
-_(ethernet) \
_(ip) \
_(swt) \
_(l2) \
typedef struct
{
u32 sw_if_index[VLIB_N_RX_TX];
+ i16 l2_hdr_offset;
+ i16 l3_hdr_offset;
+ i16 l4_hdr_offset;
union
{
- /* Ethernet. */
- struct
- {
- /* Saved value of current header by ethernet-input. */
- i32 start_of_ethernet_header;
- } ethernet;
-
/* IP4/6 buffer opaque. */
struct
{
u8 code;
u32 data;
} icmp;
-
- /* IP header offset from vlib_buffer.data - saved by ip*_local nodes */
- i32 start_of_ip_header;
};
} ip;