#ifndef included_ip_ip4_h
#define included_ip_ip4_h
-#include <vnet/ip/ip4_mtrie.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/lookup.h>
+#include <vnet/buffer.h>
#include <vnet/feature/feature.h>
-
-typedef struct ip4_fib_t
-{
- /* Hash table for each prefix length mapping. */
- uword *fib_entry_by_dst_address[33];
-
- /* Mtrie for fast lookups. Hash is used to maintain overlapping prefixes. */
- ip4_fib_mtrie_t mtrie;
-
- /* Table ID (hash key) for this FIB. */
- u32 table_id;
-
- /* Index into FIB vector. */
- u32 index;
-
- /* flow hash configuration */
- flow_hash_config_t flow_hash_config;
-
- /* N-tuple classifier indices */
- u32 fwd_classify_table_index;
- u32 rev_classify_table_index;
-
-} ip4_fib_t;
+#include <vnet/ip/icmp46_packet.h>
typedef struct ip4_mfib_t
{
uword function_opaque;
} ip4_add_del_interface_address_callback_t;
+typedef void (ip4_table_bind_function_t)
+ (struct ip4_main_t * im,
+ uword opaque, u32 sw_if_index, u32 new_fib_index, u32 old_fib_index);
+
+typedef struct
+{
+ ip4_table_bind_function_t *function;
+ uword function_opaque;
+} ip4_table_bind_callback_t;
+
/**
* @brief IPv4 main type.
*
/** Vector of FIBs. */
struct fib_table_t_ *fibs;
+ /** Vector of MTries. */
+ struct ip4_fib_t_ *v4_fibs;
+
/** Vector of MFIBs. */
struct mfib_table_t_ *mfibs;
ip4_add_del_interface_address_callback_t
* add_del_interface_address_callbacks;
+ /** Functions to call when interface to table biding changes. */
+ ip4_table_bind_callback_t *table_bind_callbacks;
+
/** Template used to generate IP4 ARP packets. */
vlib_packet_template_t ip4_arp_request_packet_template;
int vnet_set_ip4_flow_hash (u32 table_id,
flow_hash_config_t flow_hash_config);
-void ip4_mtrie_init (ip4_fib_mtrie_t * m);
-
int vnet_set_ip4_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
u32 table_index);
+void ip4_punt_policer_add_del (u8 is_add, u32 policer_index);
+
+void ip4_punt_redirect_add (u32 rx_sw_if_index,
+ u32 tx_sw_if_index, ip46_address_t * nh);
+void ip4_punt_redirect_del (u32 rx_sw_if_index);
+
/* Compute flow hash. We'll use it to select which adjacency to use for this
flow. And other things. */
always_inline u32
b = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t1 : t2;
b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0;
- t1 = is_tcp_udp ? tcp->ports.src : 0;
- t2 = is_tcp_udp ? tcp->ports.dst : 0;
+ t1 = is_tcp_udp ? tcp->src : 0;
+ t2 = is_tcp_udp ? tcp->dst : 0;
t1 = (flow_hash_config & IP_FLOW_HASH_SRC_PORT) ? t1 : 0;
t2 = (flow_hash_config & IP_FLOW_HASH_DST_PORT) ? t2 : 0;
u32 ip4_tcp_udp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0);
+#define IP_DF 0x4000 /* don't fragment */
+
+/**
+ * Push IPv4 header to buffer
+ *
+ * This does not support fragmentation.
+ *
+ * @param vm - vlib_main
+ * @param b - buffer to write the header to
+ * @param src - source IP
+ * @param dst - destination IP
+ * @param prot - payload proto
+ *
+ * @return - pointer to start of IP header
+ */
+always_inline void *
+vlib_buffer_push_ip4 (vlib_main_t * vm, vlib_buffer_t * b,
+ ip4_address_t * src, ip4_address_t * dst, int proto,
+ u8 csum_offload)
+{
+ ip4_header_t *ih;
+
+ /* make some room */
+ ih = vlib_buffer_push_uninit (b, sizeof (ip4_header_t));
+
+ ih->ip_version_and_header_length = 0x45;
+ ih->tos = 0;
+ ih->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b));
+
+ /* No fragments */
+ ih->flags_and_fragment_offset = clib_host_to_net_u16 (IP_DF);
+ ih->ttl = 255;
+ ih->protocol = proto;
+ ih->src_address.as_u32 = src->as_u32;
+ ih->dst_address.as_u32 = dst->as_u32;
+
+ /* Offload ip4 header checksum generation */
+ if (csum_offload)
+ {
+ ih->checksum = 0;
+ b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM | VNET_BUFFER_F_IS_IP4;
+ vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data;
+ vnet_buffer (b)->l4_hdr_offset = vnet_buffer (b)->l3_hdr_offset +
+ sizeof (*ih);
+ }
+ else
+ ih->checksum = ip4_header_checksum (ih);
+
+ return ih;
+}
#endif /* included_ip_ip4_h */
/*