uword function_opaque;
} ip4_add_del_interface_address_callback_t;
+typedef void (ip4_enable_disable_interface_function_t)
+ (struct ip4_main_t * im, uword opaque, u32 sw_if_index, u32 is_enable);
+
+typedef struct
+{
+ ip4_enable_disable_interface_function_t *function;
+ uword function_opaque;
+} ip4_enable_disable_interface_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);
ip4_add_del_interface_address_callback_t
* add_del_interface_address_callbacks;
+ /** Functions to call when interface becomes IPv4 enabled/disable. */
+ ip4_enable_disable_interface_callback_t
+ * enable_disable_interface_callbacks;
+
/** Functions to call when interface to table biding changes. */
ip4_table_bind_callback_t *table_bind_callbacks;
/** Global ip4 main structure. */
extern ip4_main_t ip4_main;
+extern char *ip4_error_strings[];
/** Global ip4 input node. Errors get attached to ip4 input node. */
extern vlib_node_registration_t ip4_input_node;
/* Find interface address which matches destination. */
always_inline ip4_address_t *
ip4_interface_address_matching_destination (ip4_main_t * im,
- ip4_address_t * dst,
+ const ip4_address_t * dst,
u32 sw_if_index,
ip_interface_address_t **
result_ia)
int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2);
-/* Send an ARP request to see if given destination is reachable on given interface. */
-clib_error_t *ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst,
- u32 sw_if_index, u8 refresh);
-
-clib_error_t *ip4_set_arp_limit (u32 arp_limit);
-
uword
ip4_udp_register_listener (vlib_main_t * vm,
u16 dst_port, u32 next_node_index);
-void
-ip4_icmp_register_type (vlib_main_t * vm, icmp4_type_t type, u32 node_index);
-
u16 ip4_tcp_udp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
ip4_header_t * ip0);
void ip4_register_protocol (u32 protocol, u32 node_index);
+void ip4_unregister_protocol (u32 protocolx);
serialize_function_t serialize_vnet_ip4_main, unserialize_vnet_ip4_main;
void ip4_punt_redirect_add (u32 rx_sw_if_index,
u32 tx_sw_if_index, ip46_address_t * nh);
+void ip4_punt_redirect_add_paths (u32 rx_sw_if_index,
+ fib_route_path_t * paths);
+
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
a = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ? t2 : t1;
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->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;
+ if (flow_hash_config & IP_FLOW_HASH_SYMMETRIC)
+ {
+ if (b < a)
+ {
+ c = a;
+ a = b;
+ b = c;
+ }
+ if (t2 < t1)
+ {
+ t2 += t1;
+ t1 = t2 - t1;
+ t2 = t2 - t1;
+ }
+ }
+
+ b ^= (flow_hash_config & IP_FLOW_HASH_PROTO) ? ip->protocol : 0;
c = (flow_hash_config & IP_FLOW_HASH_REVERSE_SRC_DST) ?
(t1 << 16) | t2 : (t2 << 16) | t1;
ih->src_address.as_u32 = src->as_u32;
ih->dst_address.as_u32 = dst->as_u32;
+ vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data;
+ b->flags |= VNET_BUFFER_F_IS_IP4 | VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
+
/* 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);
+ b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM;
}
else
ih->checksum = ip4_header_checksum (ih);