#ifndef included_ip_ip_source_and_port_range_check_h
#define included_ip_ip_source_and_port_range_check_h
+
+typedef struct
+{
+ /* convenience */
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
+} source_range_check_main_t;
+
+source_range_check_main_t source_range_check_main;
+
+typedef enum
+{
+ IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_TCP_OUT,
+ IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_UDP_OUT,
+ IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_TCP_IN,
+ IP_SOURCE_AND_PORT_RANGE_CHECK_PROTOCOL_UDP_IN,
+ IP_SOURCE_AND_PORT_RANGE_CHECK_N_PROTOCOLS,
+} ip_source_and_port_range_check_protocol_t;
+
+typedef struct
+{
+ u32 fib_index[IP_SOURCE_AND_PORT_RANGE_CHECK_N_PROTOCOLS];
+} ip_source_and_port_range_check_config_t;
+
+#define IP_SOURCE_AND_PORT_RANGE_CHECK_RANGE_LIMIT VLIB_BUFFER_PRE_DATA_SIZE/(2*sizeof(u16x8));
+
+typedef struct
+{
+ union
+ {
+ u16x8 as_u16x8;
+ u16 as_u16[8];
+ };
+} u16x8vec_t;
+
+typedef struct
+{
+ u16x8vec_t low;
+ u16x8vec_t hi;
+} protocol_port_range_t;
+
+/**
+ * @brief The number of supported ranges per-data path object.
+ * If more ranges are required, bump this number.
+ */
+#define N_PORT_RANGES_PER_DPO 64
+#define N_RANGES_PER_BLOCK (sizeof(u16x8vec_t)/2)
+#define N_BLOCKS_PER_DPO (N_PORT_RANGES_PER_DPO/N_RANGES_PER_BLOCK)
+
+/**
+ * @brief
+ * The object that is in the data-path to perform the check.
+ *
+ * Some trade-offs here; memory vs performance.
+ *
+ * performance:
+ * the principle factor is d-cache line misses/hits.
+ * so we want the data layout to minimise the d-cache misses. This
+ * means not following dependent reads. i.e. not doing
+ *
+ * struct B {
+ * u16 n_ranges;
+ * range_t *ragnes; // vector of ranges.
+ * }
+ *
+ * so to read ranges[0] we would first d-cache miss on the address
+ * of the object of type B, for which we would need to wait before we
+ * can get the address of B->ranges.
+ * So this layout is better:
+ *
+ * struct B {
+ * u16 n_ranges;
+ * range_t ragnes[N];
+ * }
+ *
+ * memory:
+ * the latter layout above is more memory hungry. And N needs to be:
+ * 1 - sized for the maximum required
+ * 2 - fixed, so that objects of type B can be pool allocated and so
+ * 'get'-able using an index.
+ * An option over fixed might be to allocate contiguous chunk from
+ * the pool (like we used to do for multi-path adjs).
+ */
+typedef struct protocol_port_range_dpo_t_
+{
+ /**
+ * The number of blocks from the 'block' array below
+ * that have rnages configured. We keep this count so that in the data-path
+ * we can limit the loop to be only over the blocks we need
+ */
+ u16 n_used_blocks;
+
+ /**
+ * The total number of free ranges from all blocks.
+ * Used to prevent overrun of the ranges available.
+ */
+ u16 n_free_ranges;
+
+ /**
+ * the fixed size array of ranges
+ */
+ protocol_port_range_t blocks[N_BLOCKS_PER_DPO];
+} protocol_port_range_dpo_t;
+
int ip4_source_and_port_range_check_add_del (ip4_address_t * address,
- u32 length,
- u32 vrf_id,
- u16 * low_ports,
- u16 * hi_ports,
- int is_add);
+ u32 length,
+ u32 vrf_id,
+ u16 * low_ports,
+ u16 * hi_ports, int is_add);
+
+// This will be moved to another file in another patch -- for API freeze
+int ip6_source_and_port_range_check_add_del (ip6_address_t * address,
+ u32 length,
+ u32 vrf_id,
+ u16 * low_ports,
+ u16 * hi_ports, int is_add);
int set_ip_source_and_port_range_check (vlib_main_t * vm,
- u32 fib_index,
- u32 sw_if_index,
- u32 is_add);
+ u32 * fib_index,
+ u32 sw_if_index, u32 is_add);
#endif /* included ip_source_and_port_range_check_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */