ip: Replace Sematics for Interface IP addresses
[vpp.git] / src / vnet / ip / ip6.h
index ab17f66..5e16f99 100644 (file)
 
 #include <vlib/buffer.h>
 #include <vnet/ethernet/packet.h>
+#include <vnet/ethernet/mac_address.h>
 #include <vnet/ip/ip6_packet.h>
+#include <vnet/ip/ip46_address.h>
 #include <vnet/ip/ip6_hop_by_hop_packet.h>
 #include <vnet/ip/lookup.h>
+#include <vnet/ip/ip_interface.h>
 #include <stdbool.h>
 #include <vppinfra/bihash_24_8.h>
 #include <vppinfra/bihash_40_8.h>
@@ -121,7 +124,7 @@ typedef enum ip6_fib_table_instance_type_t_
 {
     /**
      * This table stores the routes that are used to forward traffic.
-     * The key is the prefix, the result the adjacnecy to forward on.
+     * The key is the prefix, the result the adjacency to forward on.
      */
   IP6_FIB_TABLE_FWDING,
     /**
@@ -136,7 +139,7 @@ typedef enum ip6_fib_table_instance_type_t_
 #define IP6_FIB_NUM_TABLES (IP6_FIB_TABLE_NON_FWDING+1)
 
 /**
- * A represenation of a single IP6 table
+ * A representation of a single IP6 table
  */
 typedef struct ip6_fib_table_instance_t_
 {
@@ -150,7 +153,7 @@ typedef struct ip6_fib_table_instance_t_
 } ip6_fib_table_instance_t;
 
 /**
- * A represenation of a single IP6 mfib table
+ * A representation of a single IP6 mfib table
  */
 typedef struct ip6_mfib_table_instance_t_
 {
@@ -216,9 +219,6 @@ typedef struct ip6_main_t
   /** Functions to call when interface to table biding changes. */
   ip6_table_bind_callback_t *table_bind_callbacks;
 
-  /* Template used to generate IP6 neighbor solicitation packets. */
-  vlib_packet_template_t discover_neighbor_packet_template;
-
   /* ip6 lookup table config parameters */
   u32 lookup_table_nbuckets;
   uword lookup_table_size;
@@ -254,6 +254,7 @@ extern vlib_node_registration_t ip6_rewrite_local_node;
 extern vlib_node_registration_t ip6_discover_neighbor_node;
 extern vlib_node_registration_t ip6_glean_node;
 extern vlib_node_registration_t ip6_midchain_node;
+extern vlib_node_registration_t ip6_punt_node;
 
 extern void ip6_forward_next_trace (vlib_main_t * vm,
                                    vlib_node_runtime_t * node,
@@ -301,42 +302,10 @@ ip6_unaligned_destination_matches_route (ip6_main_t * im,
   return 1;
 }
 
-extern int ip6_get_ll_address (u32 sw_if_index, ip6_address_t * addr);
-
-always_inline int
-ip6_src_address_for_packet (ip_lookup_main_t * lm,
-                           u32 sw_if_index,
-                           const ip6_address_t * dst, ip6_address_t * src)
-{
-  if (ip6_address_is_link_local_unicast (dst))
-    {
-      return ip6_get_ll_address (sw_if_index, src);
-    }
-  else
-    {
-      u32 if_add_index =
-       lm->if_address_pool_index_by_sw_if_index[sw_if_index];
-      if (PREDICT_TRUE (if_add_index != ~0))
-       {
-         ip_interface_address_t *if_add =
-           pool_elt_at_index (lm->if_address_pool, if_add_index);
-         ip6_address_t *if_ip =
-           ip_interface_address_get_address (lm, if_add);
-         *src = *if_ip;
-         return (!0);
-       }
-    }
-
-  src->as_u64[0] = 0;
-  src->as_u64[1] = 0;
-
-  return (0);
-}
-
 /* Find interface address which matches destination. */
 always_inline ip6_address_t *
 ip6_interface_address_matching_destination (ip6_main_t * im,
-                                           ip6_address_t * dst,
+                                           const ip6_address_t * dst,
                                            u32 sw_if_index,
                                            ip_interface_address_t **
                                            result_ia)
@@ -375,9 +344,6 @@ ip6_address_t *ip6_interface_first_address (ip6_main_t * im, u32 sw_if_index);
 
 int ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2);
 
-clib_error_t *ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst,
-                                 u32 sw_if_index, u8 refresh);
-
 uword
 ip6_udp_register_listener (vlib_main_t * vm,
                           u16 dst_port, u32 next_node_index);
@@ -387,52 +353,14 @@ u16 ip6_tcp_udp_icmp_compute_checksum (vlib_main_t * vm, vlib_buffer_t * p0,
                                       int *bogus_lengthp);
 
 void ip6_register_protocol (u32 protocol, u32 node_index);
+void ip6_unregister_protocol (u32 protocol);
+void ip6_local_hop_by_hop_register_protocol (u32 protocol, u32 node_index);
 
 serialize_function_t serialize_vnet_ip6_main, unserialize_vnet_ip6_main;
 
-void ip6_ethernet_update_adjacency (vnet_main_t * vnm,
-                                   u32 sw_if_index, u32 ai);
-
-
-void
-ip6_link_local_address_from_ethernet_mac_address (ip6_address_t * ip,
-                                                 u8 * mac);
-
-void
-ip6_ethernet_mac_address_from_link_local_address (u8 * mac,
-                                                 ip6_address_t * ip);
-
 int vnet_set_ip6_flow_hash (u32 table_id,
                            flow_hash_config_t flow_hash_config);
 
-clib_error_t *enable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
-
-clib_error_t *disable_ip6_interface (vlib_main_t * vm, u32 sw_if_index);
-
-int ip6_interface_enabled (vlib_main_t * vm, u32 sw_if_index);
-
-clib_error_t *set_ip6_link_local_address (vlib_main_t * vm,
-                                         u32 sw_if_index,
-                                         ip6_address_t * address);
-
-int vnet_add_del_ip6_nd_change_event (vnet_main_t * vnm,
-                                     void *data_callback,
-                                     u32 pid,
-                                     void *address_arg,
-                                     uword node_index,
-                                     uword type_opaque,
-                                     uword data, int is_add);
-
-int vnet_ip6_nd_term (vlib_main_t * vm,
-                     vlib_node_runtime_t * node,
-                     vlib_buffer_t * p0,
-                     ethernet_header_t * eth,
-                     ip6_header_t * ip, u32 sw_if_index, u16 bd_index);
-
-void send_ip6_na (vlib_main_t * vm, u32 sw_if_index);
-void send_ip6_na_w_addr (vlib_main_t * vm,
-                        const ip6_address_t * addr, u32 sw_if_index);
-
 u8 *format_ip6_forward_next_trace (u8 * s, va_list * args);
 
 u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0);
@@ -440,6 +368,8 @@ u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0);
 void ip6_punt_policer_add_del (u8 is_add, u32 policer_index);
 void ip6_punt_redirect_add (u32 rx_sw_if_index,
                            u32 tx_sw_if_index, ip46_address_t * nh);
+void ip6_punt_redirect_add_paths (u32 rx_sw_if_index,
+                                 fib_route_path_t * paths);
 void ip6_punt_redirect_del (u32 rx_sw_if_index);
 
 int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
@@ -625,21 +555,23 @@ void ip6_hbh_set_next_override (uword next);
  * @param src - source IP
  * @param dst - destination IP
  * @param prot - payload proto
+ * @param flow_label - flow label
  *
  * @return - pointer to start of IP header
  */
 always_inline void *
-vlib_buffer_push_ip6 (vlib_main_t * vm, vlib_buffer_t * b,
-                     ip6_address_t * src, ip6_address_t * dst, int proto)
+vlib_buffer_push_ip6_custom (vlib_main_t * vm, vlib_buffer_t * b,
+                            ip6_address_t * src, ip6_address_t * dst,
+                            int proto, u32 flow_label)
 {
   ip6_header_t *ip6h;
   u16 payload_length;
 
   /* make some room */
   ip6h = vlib_buffer_push_uninit (b, sizeof (ip6_header_t));
-
+  ASSERT (flow_label < 1 << 20);
   ip6h->ip_version_traffic_class_and_flow_label =
-    clib_host_to_net_u32 (0x6 << 28);
+    clib_host_to_net_u32 ((0x6 << 28) | flow_label);
 
   /* calculate ip6 payload length */
   payload_length = vlib_buffer_length_in_chain (vm, b);
@@ -653,11 +585,41 @@ vlib_buffer_push_ip6 (vlib_main_t * vm, vlib_buffer_t * b,
                    sizeof (ip6h->src_address));
   clib_memcpy_fast (ip6h->dst_address.as_u8, dst->as_u8,
                    sizeof (ip6h->src_address));
-  b->flags |= VNET_BUFFER_F_IS_IP6;
+  vnet_buffer (b)->l3_hdr_offset = (u8 *) ip6h - b->data;
+  b->flags |= VNET_BUFFER_F_IS_IP6 | VNET_BUFFER_F_L3_HDR_OFFSET_VALID;
 
   return ip6h;
 }
 
+/**
+ * Push IPv6 header to buffer
+ *
+ * @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_ip6 (vlib_main_t * vm, vlib_buffer_t * b,
+                     ip6_address_t * src, ip6_address_t * dst, int proto)
+{
+  return vlib_buffer_push_ip6_custom (vm, b, src, dst, proto,
+                                     0 /* flow label */ );
+
+}
+
+always_inline u32
+vlib_buffer_get_ip6_fib_index (vlib_buffer_t * b)
+{
+  u32 fib_index, sw_if_index;
+  sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX];
+  fib_index = vnet_buffer (b)->sw_if_index[VLIB_TX];
+  return (fib_index == (u32) ~ 0) ?
+    vec_elt (ip6_main.fib_index_by_sw_if_index, sw_if_index) : fib_index;
+}
 #endif /* included_ip_ip6_h */
 
 /*