#include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */
#include <vnet/srp/srp.h> /* for srp_hw_interface_class */
#include <vppinfra/cache.h>
+#include <vnet/fib/fib_table.h>
+#include <vnet/fib/ip6_fib.h>
+#include <vnet/dpo/load_balance.h>
+#include <vnet/dpo/classify_dpo.h>
#include <vppinfra/bihash_template.c>
-static void compute_prefix_lengths_in_search_order (ip6_main_t * im)
-{
- int i;
- vec_reset_length (im->prefix_lengths_in_search_order);
- /* Note: bitmap reversed so this is in fact a longest prefix match */
- clib_bitmap_foreach (i, im->non_empty_dst_address_length_bitmap,
- ({
- int dst_address_length = 128 - i;
- vec_add1 (im->prefix_lengths_in_search_order, dst_address_length);
- }));
-}
-
-u32
-ip6_fib_lookup_with_table (ip6_main_t * im, u32 fib_index, ip6_address_t * dst)
-{
- ip_lookup_main_t * lm = &im->lookup_main;
- int i, len;
- int rv;
- BVT(clib_bihash_kv) kv, value;
- u64 fib;
-
- len = vec_len (im->prefix_lengths_in_search_order);
-
- kv.key[0] = dst->as_u64[0];
- kv.key[1] = dst->as_u64[1];
- fib = ((u64)((fib_index))<<32);
-
- for (i = 0; i < len; i++)
- {
- int dst_address_length = im->prefix_lengths_in_search_order[i];
- ip6_address_t * mask = &im->fib_masks[dst_address_length];
-
- ASSERT(dst_address_length >= 0 && dst_address_length <= 128);
- //As lengths are decreasing, masks are increasingly specific.
- kv.key[0] &= mask->as_u64[0];
- kv.key[1] &= mask->as_u64[1];
- kv.key[2] = fib | dst_address_length;
-
- rv = BV(clib_bihash_search_inline_2)(&im->ip6_lookup_table, &kv, &value);
- if (rv == 0)
- return value.value;
- }
-
- return lm->miss_adj_index;
-}
-
-u32 ip6_fib_lookup (ip6_main_t * im, u32 sw_if_index, ip6_address_t * dst)
-{
- u32 fib_index = vec_elt (im->fib_index_by_sw_if_index, sw_if_index);
- return ip6_fib_lookup_with_table (im, fib_index, dst);
-}
-
-void
-vnet_ip6_fib_init (ip6_main_t * im, u32 fib_index)
-{
- ip_lookup_main_t * lm = &im->lookup_main;
- ip6_add_del_route_args_t a;
- ip_adjacency_t * adj;
-
- memset(&a, 0x0, sizeof(ip6_add_del_route_args_t));
-
- a.table_index_or_table_id = fib_index;
- a.flags = (IP6_ROUTE_FLAG_ADD
- | IP6_ROUTE_FLAG_FIB_INDEX
- | IP6_ROUTE_FLAG_KEEP_OLD_ADJACENCY
- | IP6_ROUTE_FLAG_NO_REDISTRIBUTE);
-
- /* Add ff02::1:ff00:0/104 via local route for all tables.
- This is required for neighbor discovery to work. */
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &a.adj_index);
- adj->lookup_next_index = IP_LOOKUP_NEXT_LOCAL;
- adj->if_address_index = ~0;
- adj->rewrite_header.data_bytes = 0;
-
- ip6_set_solicited_node_multicast_address (&a.dst_address, 0);
-
- a.dst_address_length = 104;
- ip6_add_del_route (im, &a);
-
- /* Add all-routers multicast address via local route for all tables */
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &a.adj_index);
- adj->lookup_next_index = IP_LOOKUP_NEXT_LOCAL;
- adj->if_address_index = ~0;
- adj->rewrite_header.data_bytes = 0;
-
- ip6_set_reserved_multicast_address (&a.dst_address,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_all_routers);
-
- a.dst_address_length = 128;
- ip6_add_del_route (im, &a);
-
- /* Add all-nodes multicast address via local route for all tables */
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &a.adj_index);
- adj->lookup_next_index = IP_LOOKUP_NEXT_LOCAL;
- adj->if_address_index = ~0;
- adj->rewrite_header.data_bytes = 0;
-
- ip6_set_reserved_multicast_address (&a.dst_address,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_all_hosts);
-
- a.dst_address_length = 128;
- ip6_add_del_route (im, &a);
-
- /* Add all-mldv2 multicast address via local route for all tables */
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &a.adj_index);
- adj->lookup_next_index = IP_LOOKUP_NEXT_LOCAL;
- adj->if_address_index = ~0;
- adj->rewrite_header.data_bytes = 0;
-
- ip6_set_reserved_multicast_address (&a.dst_address,
- IP6_MULTICAST_SCOPE_link_local,
- IP6_MULTICAST_GROUP_ID_mldv2_routers);
-
- a.dst_address_length = 128;
- ip6_add_del_route (im, &a);
-}
-
-static ip6_fib_t *
-create_fib_with_table_id (ip6_main_t * im, u32 table_id)
-{
- ip6_fib_t * fib;
- hash_set (im->fib_index_by_table_id, table_id, vec_len (im->fibs));
- vec_add2 (im->fibs, fib, 1);
- fib->table_id = table_id;
- fib->index = fib - im->fibs;
- fib->flow_hash_config = IP_FLOW_HASH_DEFAULT;
- vnet_ip6_fib_init (im, fib->index);
- return fib;
-}
-
-ip6_fib_t *
-find_ip6_fib_by_table_index_or_id (ip6_main_t * im, u32 table_index_or_id, u32 flags)
-{
- uword * p, fib_index;
-
- fib_index = table_index_or_id;
- if (! (flags & IP6_ROUTE_FLAG_FIB_INDEX))
- {
- if (table_index_or_id == ~0) {
- table_index_or_id = 0;
- while (hash_get (im->fib_index_by_table_id, table_index_or_id)) {
- table_index_or_id++;
- }
- return create_fib_with_table_id (im, table_index_or_id);
- }
-
- p = hash_get (im->fib_index_by_table_id, table_index_or_id);
- if (! p)
- return create_fib_with_table_id (im, table_index_or_id);
- fib_index = p[0];
- }
- return vec_elt_at_index (im->fibs, fib_index);
-}
-
-void ip6_add_del_route (ip6_main_t * im, ip6_add_del_route_args_t * a)
-{
- ip_lookup_main_t * lm = &im->lookup_main;
- ip6_fib_t * fib;
- ip6_address_t dst_address;
- u32 dst_address_length, adj_index;
- uword is_del;
- u32 old_adj_index = ~0;
- BVT(clib_bihash_kv) kv, value;
-
- vlib_smp_unsafe_warning();
-
- is_del = (a->flags & IP6_ROUTE_FLAG_DEL) != 0;
-
- /* Either create new adjacency or use given one depending on arguments. */
- if (a->n_add_adj > 0)
- {
- ip_add_adjacency (lm, a->add_adj, a->n_add_adj, &adj_index);
- ip_call_add_del_adjacency_callbacks (lm, adj_index, /* is_del */ 0);
- }
- else
- adj_index = a->adj_index;
-
- dst_address = a->dst_address;
- dst_address_length = a->dst_address_length;
- fib = find_ip6_fib_by_table_index_or_id (im, a->table_index_or_table_id,
- a->flags);
-
- ASSERT (dst_address_length < ARRAY_LEN (im->fib_masks));
- ip6_address_mask (&dst_address, &im->fib_masks[dst_address_length]);
-
- /* refcount accounting */
- if (is_del)
- {
- ASSERT (im->dst_address_length_refcounts[dst_address_length] > 0);
- if (--im->dst_address_length_refcounts[dst_address_length] == 0)
- {
- im->non_empty_dst_address_length_bitmap =
- clib_bitmap_set (im->non_empty_dst_address_length_bitmap,
- 128 - dst_address_length, 0);
- compute_prefix_lengths_in_search_order (im);
- }
- }
- else
- {
- im->dst_address_length_refcounts[dst_address_length]++;
-
- im->non_empty_dst_address_length_bitmap =
- clib_bitmap_set (im->non_empty_dst_address_length_bitmap,
- 128 - dst_address_length, 1);
- compute_prefix_lengths_in_search_order (im);
- }
-
- kv.key[0] = dst_address.as_u64[0];
- kv.key[1] = dst_address.as_u64[1];
- kv.key[2] = ((u64)((fib - im->fibs))<<32) | dst_address_length;
-
- if (BV(clib_bihash_search)(&im->ip6_lookup_table, &kv, &value) == 0)
- old_adj_index = value.value;
-
- if (is_del)
- BV(clib_bihash_add_del) (&im->ip6_lookup_table, &kv, 0 /* is_add */);
- else
- {
- /* Make sure adj index is valid. */
- if (CLIB_DEBUG > 0)
- (void) ip_get_adjacency (lm, adj_index);
-
- kv.value = adj_index;
-
- BV(clib_bihash_add_del) (&im->ip6_lookup_table, &kv, 1 /* is_add */);
- }
-
- /* Avoid spurious reference count increments */
- if (old_adj_index == adj_index
- && adj_index != ~0
- && !(a->flags & IP6_ROUTE_FLAG_KEEP_OLD_ADJACENCY))
- {
- ip_adjacency_t * adj = ip_get_adjacency (lm, adj_index);
- if (adj->share_count > 0)
- adj->share_count --;
- }
-
- /* Delete old adjacency index if present and changed. */
- {
- if (! (a->flags & IP6_ROUTE_FLAG_KEEP_OLD_ADJACENCY)
- && old_adj_index != ~0
- && old_adj_index != adj_index)
- ip_del_adjacency (lm, old_adj_index);
- }
-}
-
-u32
-ip6_route_get_next_hop_adj (ip6_main_t * im,
- u32 fib_index,
- ip6_address_t *next_hop,
- u32 next_hop_sw_if_index,
- u32 explicit_fib_index)
-{
- ip_lookup_main_t * lm = &im->lookup_main;
- vnet_main_t * vnm = vnet_get_main();
- int is_interface_next_hop;
- uword * nh_result;
- u32 nh_adj_index;
- ip6_fib_t * fib;
-
- fib = vec_elt_at_index (im->fibs, fib_index);
-
- is_interface_next_hop = ip6_address_is_zero (next_hop);
-
- if (is_interface_next_hop)
- {
- nh_result = hash_get (im->interface_route_adj_index_by_sw_if_index,
- next_hop_sw_if_index);
- if (nh_result)
- nh_adj_index = *nh_result;
- else
- {
- ip_adjacency_t * adj;
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &nh_adj_index);
- ip6_adjacency_set_interface_route (vnm, adj,
- next_hop_sw_if_index, ~0);
- ip_call_add_del_adjacency_callbacks
- (lm, next_hop_sw_if_index, /* is_del */ 0);
- hash_set (im->interface_route_adj_index_by_sw_if_index,
- next_hop_sw_if_index, nh_adj_index);
- }
- }
- else if (next_hop_sw_if_index == ~0)
- {
- /* next-hop is recursive. we always need a indirect adj
- * for recursive paths. Any LPM we perform now will give
- * us a valid adj, but without tracking the next-hop we
- * have no way to keep it valid.
- */
- ip_adjacency_t add_adj;
- memset (&add_adj, 0, sizeof(add_adj));
- add_adj.n_adj = 1;
- add_adj.lookup_next_index = IP_LOOKUP_NEXT_INDIRECT;
- add_adj.indirect.next_hop.ip6.as_u64[0] = next_hop->as_u64[0];
- add_adj.indirect.next_hop.ip6.as_u64[1] = next_hop->as_u64[1];
- add_adj.explicit_fib_index = explicit_fib_index;
- ip_add_adjacency (lm, &add_adj, 1, &nh_adj_index);
- }
- else
- {
- BVT(clib_bihash_kv) kv, value;
-
- /* Look for the interface /128 route */
- kv.key[0] = next_hop->as_u64[0];
- kv.key[1] = next_hop->as_u64[1];
- kv.key[2] = ((u64)((fib - im->fibs))<<32) | 128;
-after_nd:
- if (BV(clib_bihash_search)(&im->ip6_lookup_table, &kv, &value) < 0)
- {
- ip_adjacency_t * adj;
- nh_adj_index = ip6_fib_lookup_with_table (im, fib_index, next_hop);
- adj = ip_get_adjacency (lm, nh_adj_index);
- /* if ND interface adjacencty is present, we need to
- install ND adjaceny for specific next hop */
- if (adj->lookup_next_index == IP_LOOKUP_NEXT_ARP &&
- adj->arp.next_hop.ip6.as_u64[0] == 0 &&
- adj->arp.next_hop.ip6.as_u64[1] == 0)
- {
- nh_adj_index = vnet_ip6_neighbor_glean_add(fib_index, next_hop);
- }
- else if (next_hop->as_u8[0] == 0xfe)
- {
- //Next hop is link-local. No indirect in this case.
- //Let's add it as a possible neighbor on this interface
- ip6_address_t null_addr= {};
- ip6_add_del_route_next_hop (im, IP6_ROUTE_FLAG_ADD,
- next_hop, 128,
- &null_addr, next_hop_sw_if_index,
- 1, ~0, fib_index);
- goto after_nd;
- }
- }
- else
- {
- nh_adj_index = value.value;
- }
- }
-
- return (nh_adj_index);
-}
-
-void
-ip6_add_del_route_next_hop (ip6_main_t * im,
- u32 flags,
- ip6_address_t * dst_address,
- u32 dst_address_length,
- ip6_address_t * next_hop,
- u32 next_hop_sw_if_index,
- u32 next_hop_weight, u32 adj_index,
- u32 explicit_fib_index)
-{
- vnet_main_t * vnm = vnet_get_main();
- ip_lookup_main_t * lm = &im->lookup_main;
- u32 fib_index;
- ip6_fib_t * fib;
- ip6_address_t masked_dst_address;
- u32 old_mp_adj_index, new_mp_adj_index;
- u32 dst_adj_index, nh_adj_index;
- int rv;
- ip_adjacency_t * dst_adj;
- ip_multipath_adjacency_t * old_mp, * new_mp;
- int is_del = (flags & IP6_ROUTE_FLAG_DEL) != 0;
- clib_error_t * error = 0;
- BVT(clib_bihash_kv) kv, value;
-
- vlib_smp_unsafe_warning();
-
- if (explicit_fib_index == (u32)~0)
- fib_index = vec_elt (im->fib_index_by_sw_if_index, next_hop_sw_if_index);
- else
- fib_index = explicit_fib_index;
-
- fib = vec_elt_at_index (im->fibs, fib_index);
-
- /* Lookup next hop to be added or deleted. */
- if (adj_index == (u32)~0)
- {
- nh_adj_index = ip6_route_get_next_hop_adj(im, fib_index,
- next_hop,
- next_hop_sw_if_index,
- explicit_fib_index);
- }
- else
- {
- /* Look for the interface /128 route */
- kv.key[0] = next_hop->as_u64[0];
- kv.key[1] = next_hop->as_u64[1];
- kv.key[2] = ((u64)((fib - im->fibs))<<32) | 128;
-
- if (BV(clib_bihash_search)(&im->ip6_lookup_table, &kv, &value) < 0)
- {
- vnm->api_errno = VNET_API_ERROR_UNKNOWN_DESTINATION;
- error = clib_error_return (0, "next-hop %U/128 not in FIB",
- format_ip6_address, next_hop);
- goto done;
- }
-
- nh_adj_index = value.value;
- }
-
- ASSERT (dst_address_length < ARRAY_LEN (im->fib_masks));
- masked_dst_address = dst_address[0];
- ip6_address_mask (&masked_dst_address, &im->fib_masks[dst_address_length]);
-
- kv.key[0] = masked_dst_address.as_u64[0];
- kv.key[1] = masked_dst_address.as_u64[1];
- kv.key[2] = ((u64)((fib - im->fibs))<<32) | dst_address_length;
-
- rv = BV(clib_bihash_search)(&im->ip6_lookup_table, &kv, &value);
-
- if (rv == 0)
- {
- dst_adj_index = value.value;
- dst_adj = ip_get_adjacency (lm, dst_adj_index);
- }
- else
- {
- /* For deletes destination must be known. */
- if (is_del)
- {
- vnm->api_errno = VNET_API_ERROR_UNKNOWN_DESTINATION;
- error = clib_error_return (0, "unknown destination %U/%d",
- format_ip6_address, dst_address,
- dst_address_length);
- goto done;
- }
-
- dst_adj_index = ~0;
- dst_adj = 0;
- }
-
- /* Ignore adds of X/128 with next hop of X. */
- if (! is_del
- && dst_address_length == 128
- && ip6_address_is_equal (dst_address, next_hop))
- {
- vnm->api_errno = VNET_API_ERROR_PREFIX_MATCHES_NEXT_HOP;
- error = clib_error_return (0, "prefix matches next hop %U/%d",
- format_ip6_address, dst_address,
- dst_address_length);
- goto done;
- }
-
- /* Destination is not known and default weight is set so add route
- to existing non-multipath adjacency */
- if (dst_adj_index == ~0 && next_hop_weight == 1 && next_hop_sw_if_index == ~0)
- {
- /* create / delete additional mapping of existing adjacency */
- ip6_add_del_route_args_t a;
-
- a.table_index_or_table_id = fib_index;
- a.flags = ((is_del ? IP6_ROUTE_FLAG_DEL : IP6_ROUTE_FLAG_ADD)
- | IP6_ROUTE_FLAG_FIB_INDEX
- | IP6_ROUTE_FLAG_KEEP_OLD_ADJACENCY
- | (flags & (IP6_ROUTE_FLAG_NO_REDISTRIBUTE
- | IP6_ROUTE_FLAG_NOT_LAST_IN_GROUP)));
- a.dst_address = dst_address[0];
- a.dst_address_length = dst_address_length;
- a.adj_index = nh_adj_index;
- a.add_adj = 0;
- a.n_add_adj = 0;
-
- ip6_add_del_route (im, &a);
- goto done;
- }
-
- old_mp_adj_index = dst_adj ? dst_adj->heap_handle : ~0;
-
- if (! ip_multipath_adjacency_add_del_next_hop
- (lm, is_del,
- dst_adj ? dst_adj->heap_handle : ~0,
- nh_adj_index,
- next_hop_weight,
- &new_mp_adj_index))
- {
- vnm->api_errno = VNET_API_ERROR_NEXT_HOP_NOT_FOUND_MP;
- error = clib_error_return
- (0, "requested deleting next-hop %U not found in multi-path",
- format_ip6_address, next_hop);
- goto done;
- }
-
- old_mp = new_mp = 0;
- if (old_mp_adj_index != ~0)
- old_mp = vec_elt_at_index (lm->multipath_adjacencies, old_mp_adj_index);
- if (new_mp_adj_index != ~0)
- new_mp = vec_elt_at_index (lm->multipath_adjacencies, new_mp_adj_index);
-
- if (old_mp != new_mp)
- {
- ip6_add_del_route_args_t a;
- ip_adjacency_t * adj;
-
- a.table_index_or_table_id = fib_index;
- a.flags = ((is_del ? IP6_ROUTE_FLAG_DEL : IP6_ROUTE_FLAG_ADD)
- | IP6_ROUTE_FLAG_FIB_INDEX
- | IP6_ROUTE_FLAG_KEEP_OLD_ADJACENCY
- | (flags & IP6_ROUTE_FLAG_NO_REDISTRIBUTE));
- a.dst_address = dst_address[0];
- a.dst_address_length = dst_address_length;
- a.adj_index = new_mp ? new_mp->adj_index : dst_adj_index;
- a.add_adj = 0;
- a.n_add_adj = 0;
-
- ip6_add_del_route (im, &a);
-
- adj = ip_get_adjacency (lm, new_mp ? new_mp->adj_index : dst_adj_index);
- if (adj->n_adj == 1)
- adj->share_count += is_del ? -1 : 1;
- }
-
- done:
- if (error)
- clib_error_report (error);
-}
-
-u32
-ip6_get_route (ip6_main_t * im,
- u32 table_index_or_table_id,
- u32 flags,
- ip6_address_t * address,
- u32 address_length)
-{
- ip6_fib_t * fib = find_ip6_fib_by_table_index_or_id (im, table_index_or_table_id, flags);
- ip6_address_t masked_address;
- BVT(clib_bihash_kv) kv, value;
-
- ASSERT (address_length < ARRAY_LEN (im->fib_masks));
- clib_memcpy (&masked_address, address, sizeof (masked_address));
- ip6_address_mask (&masked_address, &im->fib_masks[address_length]);
-
- kv.key[0] = masked_address.as_u64[0];
- kv.key[1] = masked_address.as_u64[1];
- kv.key[2] = ((u64)((fib - im->fibs))<<32) | address_length;
-
- if (BV(clib_bihash_search)(&im->ip6_lookup_table, &kv, &value) == 0)
- return (value.value);
- return 0;
-}
-
-void
-ip6_foreach_matching_route (ip6_main_t * im,
- u32 table_index_or_table_id,
- u32 flags,
- ip6_address_t * dst_address,
- u32 address_length,
- ip6_address_t ** results,
- u8 ** result_lengths)
-{
- ip6_fib_t * fib =
- find_ip6_fib_by_table_index_or_id (im, table_index_or_table_id, flags);
- BVT(clib_bihash) * h = &im->ip6_lookup_table;
- BVT(clib_bihash_value) * v;
- clib_bihash_bucket_t * b;
- int i, j, k;
-
- if (*results)
- _vec_len (*results) = 0;
- if (*result_lengths)
- _vec_len (*result_lengths) = 0;
-
- /* Walk the table looking for routes which match the supplied address */
- for (i = 0; i < h->nbuckets; i++)
- {
- b = &h->buckets [i];
- if (b->offset == 0)
- continue;
-
- v = BV(clib_bihash_get_value) (h, b->offset);
- for (j = 0; j < (1<<b->log2_pages); j++)
- {
- for (k = 0; k < BIHASH_KVP_PER_PAGE; k++)
- {
- if (BV(clib_bihash_is_free)(&v->kvp[k]))
- continue;
-
- if ((v->kvp[k].key[2]
- == (((u64)((fib - im->fibs))<<32) | address_length))
- && ip6_destination_matches_route
- (im, dst_address, (ip6_address_t *) &v->kvp[k],
- address_length))
- {
- ip6_address_t * a;
-
- a = (ip6_address_t *)(&v->kvp[k]);
-
- vec_add1 (*results, a[0]);
- vec_add1 (*result_lengths, address_length);
- }
- }
- v++;
- }
- }
-}
-
-void ip6_maybe_remap_adjacencies (ip6_main_t * im,
- u32 table_index_or_table_id,
- u32 flags)
-{
-#if SOONE
- ip6_fib_t * fib
- = find_ip6_fib_by_table_index_or_id (im, table_index_or_table_id, flags);
-#endif
- ip_lookup_main_t * lm = &im->lookup_main;
-
- if (lm->n_adjacency_remaps == 0)
- return;
-
- clib_warning ("unimplemented, please report to vpp-dev@cisco.com");
-
- /* All remaps have been performed. */
- lm->n_adjacency_remaps = 0;
-}
-
-void ip6_delete_matching_routes (ip6_main_t * im,
- u32 table_index_or_table_id,
- u32 flags,
- ip6_address_t * address,
- u32 address_length)
-{
- /* $$$$ static may be OK - this should happen only on thread 0 */
- static ip6_address_t * matching_addresses;
- static u8 * matching_address_lengths;
- u32 l, i;
- ip6_add_del_route_args_t a;
-
- vlib_smp_unsafe_warning();
-
- a.flags = IP6_ROUTE_FLAG_DEL | IP6_ROUTE_FLAG_NO_REDISTRIBUTE | flags;
- a.table_index_or_table_id = table_index_or_table_id;
- a.adj_index = ~0;
- a.add_adj = 0;
- a.n_add_adj = 0;
-
- for (l = address_length + 1; l <= 128; l++)
- {
- ip6_foreach_matching_route (im, table_index_or_table_id, flags,
- address,
- l,
- &matching_addresses,
- &matching_address_lengths);
- for (i = 0; i < vec_len (matching_addresses); i++)
- {
- a.dst_address = matching_addresses[i];
- a.dst_address_length = matching_address_lengths[i];
- ip6_add_del_route (im, &a);
- }
- }
-
- ip6_maybe_remap_adjacencies (im, table_index_or_table_id, flags);
-}
-
void
ip6_forward_next_trace (vlib_main_t * vm,
vlib_node_runtime_t * node,
always_inline uword
ip6_lookup_inline (vlib_main_t * vm,
vlib_node_runtime_t * node,
- vlib_frame_t * frame,
- int is_indirect)
+ vlib_frame_t * frame)
{
ip6_main_t * im = &ip6_main;
- ip_lookup_main_t * lm = &im->lookup_main;
- vlib_combined_counter_main_t * cm = &im->lookup_main.adjacency_counters;
+ vlib_combined_counter_main_t * cm = &load_balance_main.lbm_to_counters;
u32 n_left_from, n_left_to_next, * from, * to_next;
ip_lookup_next_t next;
u32 cpu_index = os_get_cpu_number();
while (n_left_from >= 4 && n_left_to_next >= 2)
{
vlib_buffer_t * p0, * p1;
- u32 pi0, pi1, adj_index0, adj_index1, wrong_next;
+ u32 pi0, pi1, lbi0, lbi1, wrong_next;
ip_lookup_next_t next0, next1;
ip6_header_t * ip0, * ip1;
- ip_adjacency_t * adj0, * adj1;
ip6_address_t * dst_addr0, * dst_addr1;
u32 fib_index0, fib_index1;
u32 flow_hash_config0, flow_hash_config1;
+ const dpo_id_t *dpo0, *dpo1;
+ const load_balance_t *lb0, *lb1;
/* Prefetch next iteration. */
{
ip0 = vlib_buffer_get_current (p0);
ip1 = vlib_buffer_get_current (p1);
- if (PREDICT_FALSE(is_indirect))
- {
- ip_adjacency_t * iadj0, * iadj1;
- iadj0 = ip_get_adjacency (lm, vnet_buffer(p0)->ip.adj_index[VLIB_TX]);
- iadj1 = ip_get_adjacency (lm, vnet_buffer(p1)->ip.adj_index[VLIB_TX]);
- dst_addr0 = &iadj0->indirect.next_hop.ip6;
- dst_addr1 = &iadj1->indirect.next_hop.ip6;
- }
- else
- {
- dst_addr0 = &ip0->dst_address;
- dst_addr1 = &ip1->dst_address;
- }
+ dst_addr0 = &ip0->dst_address;
+ dst_addr1 = &ip1->dst_address;
fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]);
fib_index1 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p1)->sw_if_index[VLIB_RX]);
fib_index1 = (vnet_buffer(p1)->sw_if_index[VLIB_TX] == (u32)~0) ?
fib_index1 : vnet_buffer(p1)->sw_if_index[VLIB_TX];
- adj_index0 = ip6_fib_lookup_with_table (im, fib_index0, dst_addr0);
- adj_index1 = ip6_fib_lookup_with_table (im, fib_index1, dst_addr1);
+ lbi0 = ip6_fib_table_fwding_lookup (im, fib_index0, dst_addr0);
+ lbi1 = ip6_fib_table_fwding_lookup (im, fib_index1, dst_addr1);
- adj0 = ip_get_adjacency (lm, adj_index0);
- adj1 = ip_get_adjacency (lm, adj_index1);
-
- if (PREDICT_FALSE (adj0->explicit_fib_index != ~0))
- {
- adj_index0 = ip6_fib_lookup_with_table
- (im, adj0->explicit_fib_index, dst_addr0);
- adj0 = ip_get_adjacency (lm, adj_index0);
- }
- if (PREDICT_FALSE (adj1->explicit_fib_index != ~0))
- {
- adj_index1 = ip6_fib_lookup_with_table
- (im, adj1->explicit_fib_index, dst_addr1);
- adj1 = ip_get_adjacency (lm, adj_index1);
- }
-
- next0 = adj0->lookup_next_index;
- next1 = adj1->lookup_next_index;
-
- /* Only process the HBH Option Header if explicitly configured to do so */
- next0 = (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) && im->hbh_enabled &&
- adj_index0 ? (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : adj0->lookup_next_index;
- next1 = (ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) && im->hbh_enabled &&
- adj_index1 ? (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : adj1->lookup_next_index;
+ lb0 = load_balance_get (lbi0);
+ lb1 = load_balance_get (lbi1);
vnet_buffer (p0)->ip.flow_hash =
vnet_buffer(p1)->ip.flow_hash = 0;
- if (PREDICT_FALSE(adj0->n_adj > 1))
+ if (PREDICT_FALSE(lb0->lb_n_buckets > 1))
{
- flow_hash_config0 =
- vec_elt_at_index (im->fibs,fib_index0)->flow_hash_config;
+ flow_hash_config0 = lb0->lb_hash_config;
vnet_buffer (p0)->ip.flow_hash =
ip6_compute_flow_hash (ip0, flow_hash_config0);
}
-
- if (PREDICT_FALSE(adj1->n_adj > 1))
+ if (PREDICT_FALSE(lb1->lb_n_buckets > 1))
{
- flow_hash_config1 =
- vec_elt_at_index (im->fibs,fib_index0)->flow_hash_config;
-
+ flow_hash_config1 = lb1->lb_hash_config;
vnet_buffer (p1)->ip.flow_hash =
ip6_compute_flow_hash (ip1, flow_hash_config1);
}
- ASSERT (adj0->n_adj > 0);
- ASSERT (adj1->n_adj > 0);
- ASSERT (is_pow2 (adj0->n_adj));
- ASSERT (is_pow2 (adj1->n_adj));
- adj_index0 += (vnet_buffer (p0)->ip.flow_hash & (adj0->n_adj - 1));
- adj_index1 += (vnet_buffer (p1)->ip.flow_hash & (adj1->n_adj - 1));
+ ASSERT (lb0->lb_n_buckets > 0);
+ ASSERT (lb1->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb0->lb_n_buckets));
+ ASSERT (is_pow2 (lb1->lb_n_buckets));
+ dpo0 = load_balance_get_bucket_i(lb0,
+ (vnet_buffer (p0)->ip.flow_hash &
+ lb0->lb_n_buckets_minus_1));
+ dpo1 = load_balance_get_bucket_i(lb1,
+ (vnet_buffer (p1)->ip.flow_hash &
+ lb1->lb_n_buckets_minus_1));
- vnet_buffer (p0)->ip.adj_index[VLIB_TX] = adj_index0;
- vnet_buffer (p1)->ip.adj_index[VLIB_TX] = adj_index1;
+ next0 = dpo0->dpoi_next_node;
+ next1 = dpo1->dpoi_next_node;
+
+ /* Only process the HBH Option Header if explicitly configured to do so */
+ next0 = ((ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) &&
+ im->hbh_enabled) ?
+ (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP :
+ next0;
+ next1 = ((ip1->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) &&
+ im->hbh_enabled) ?
+ (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP :
+ next1;
+
+ vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
+ vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index;
vlib_increment_combined_counter
- (cm, cpu_index, adj_index0, 1,
+ (cm, cpu_index, lbi0, 1,
vlib_buffer_length_in_chain (vm, p0));
vlib_increment_combined_counter
- (cm, cpu_index, adj_index1, 1,
+ (cm, cpu_index, lbi1, 1,
vlib_buffer_length_in_chain (vm, p1));
from += 2;
{
vlib_buffer_t * p0;
ip6_header_t * ip0;
- u32 pi0, adj_index0;
+ u32 pi0, lbi0;
ip_lookup_next_t next0;
- ip_adjacency_t * adj0;
+ load_balance_t * lb0;
ip6_address_t * dst_addr0;
u32 fib_index0, flow_hash_config0;
+ const dpo_id_t *dpo0;
pi0 = from[0];
to_next[0] = pi0;
ip0 = vlib_buffer_get_current (p0);
- if (PREDICT_FALSE(is_indirect))
- {
- ip_adjacency_t * iadj0;
- iadj0 = ip_get_adjacency (lm, vnet_buffer(p0)->ip.adj_index[VLIB_TX]);
- dst_addr0 = &iadj0->indirect.next_hop.ip6;
- }
- else
- {
- dst_addr0 = &ip0->dst_address;
- }
+ dst_addr0 = &ip0->dst_address;
fib_index0 = vec_elt (im->fib_index_by_sw_if_index, vnet_buffer (p0)->sw_if_index[VLIB_RX]);
fib_index0 = (vnet_buffer(p0)->sw_if_index[VLIB_TX] == (u32)~0) ?
fib_index0 : vnet_buffer(p0)->sw_if_index[VLIB_TX];
flow_hash_config0 =
- vec_elt_at_index (im->fibs,fib_index0)->flow_hash_config;
+ ip6_fib_get (fib_index0)->flow_hash_config;
- adj_index0 = ip6_fib_lookup_with_table (im, fib_index0, dst_addr0);
+ lbi0 = ip6_fib_table_fwding_lookup (im, fib_index0, dst_addr0);
- adj0 = ip_get_adjacency (lm, adj_index0);
-
- if (PREDICT_FALSE (adj0->explicit_fib_index != ~0))
- {
- adj_index0 = ip6_fib_lookup_with_table
- (im, adj0->explicit_fib_index, dst_addr0);
- adj0 = ip_get_adjacency (lm, adj_index0);
- }
-
- /* Only process the HBH Option Header if explicitly configured to do so */
- next0 = (ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) && im->hbh_enabled &&
- adj_index0 ? (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP : adj0->lookup_next_index;
+ lb0 = load_balance_get (lbi0);
vnet_buffer (p0)->ip.flow_hash = 0;
- if (PREDICT_FALSE(adj0->n_adj > 1))
+ if (PREDICT_FALSE(lb0->lb_n_buckets > 1))
{
- flow_hash_config0 =
- vec_elt_at_index (im->fibs,fib_index0)->flow_hash_config;
+ flow_hash_config0 = lb0->lb_hash_config;
vnet_buffer (p0)->ip.flow_hash =
ip6_compute_flow_hash (ip0, flow_hash_config0);
}
- ASSERT (adj0->n_adj > 0);
- ASSERT (is_pow2 (adj0->n_adj));
- adj_index0 += (vnet_buffer (p0)->ip.flow_hash & (adj0->n_adj - 1));
+ ASSERT (lb0->lb_n_buckets > 0);
+ ASSERT (is_pow2 (lb0->lb_n_buckets));
+ dpo0 = load_balance_get_bucket_i(lb0,
+ (vnet_buffer (p0)->ip.flow_hash &
+ lb0->lb_n_buckets_minus_1));
+ next0 = dpo0->dpoi_next_node;
+ /* Only process the HBH Option Header if explicitly configured to do so */
+ next0 = ((ip0->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS) &&
+ im->hbh_enabled) ?
+ (ip_lookup_next_t) IP6_LOOKUP_NEXT_HOP_BY_HOP :
+ next0;
- vnet_buffer (p0)->ip.adj_index[VLIB_TX] = adj_index0;
+ vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
vlib_increment_combined_counter
- (cm, cpu_index, adj_index0, 1,
+ (cm, cpu_index, lbi0, 1,
vlib_buffer_length_in_chain (vm, p0));
from += 1;
}
if (node->flags & VLIB_NODE_FLAG_TRACE)
- ip6_forward_next_trace(vm, node, frame, VLIB_TX);
+ ip6_forward_next_trace(vm, node, frame, VLIB_TX);
return frame->n_vectors;
}
-void ip6_adjacency_set_interface_route (vnet_main_t * vnm,
- ip_adjacency_t * adj,
- u32 sw_if_index,
- u32 if_address_index)
-{
- vnet_hw_interface_t * hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
- ip_lookup_next_t n;
- u32 node_index;
-
- if (hw->hw_class_index == ethernet_hw_interface_class.index
- || hw->hw_class_index == srp_hw_interface_class.index)
- {
- n = IP_LOOKUP_NEXT_ARP;
- node_index = ip6_discover_neighbor_node.index;
- adj->if_address_index = if_address_index;
- adj->arp.next_hop.ip6.as_u64[0] = 0;
- adj->arp.next_hop.ip6.as_u64[1] = 0;
- }
- else
- {
- n = IP_LOOKUP_NEXT_REWRITE;
- node_index = ip6_rewrite_node.index;
- }
-
- adj->lookup_next_index = n;
- adj->explicit_fib_index = ~0;
-
- vnet_rewrite_for_sw_interface
- (vnm,
- VNET_L3_PACKET_TYPE_IP6,
- sw_if_index,
- node_index,
- VNET_REWRITE_FOR_SW_INTERFACE_ADDRESS_BROADCAST,
- &adj->rewrite_header,
- sizeof (adj->rewrite_data));
-}
-
static void
ip6_add_interface_routes (vnet_main_t * vnm, u32 sw_if_index,
ip6_main_t * im, u32 fib_index,
ip_interface_address_t * a)
{
ip_lookup_main_t * lm = &im->lookup_main;
- ip_adjacency_t * adj;
ip6_address_t * address = ip_interface_address_get_address (lm, a);
- ip6_add_del_route_args_t x;
- vnet_hw_interface_t * hw_if = vnet_get_sup_hw_interface (vnm, sw_if_index);
- u32 classify_table_index;
-
- /* Add e.g. 1.0.0.0/8 as interface route (arp for Ethernet). */
- x.table_index_or_table_id = fib_index;
- x.flags = (IP6_ROUTE_FLAG_ADD
- | IP6_ROUTE_FLAG_FIB_INDEX
- | IP6_ROUTE_FLAG_NO_REDISTRIBUTE);
- x.dst_address = address[0];
- x.dst_address_length = a->address_length;
- x.n_add_adj = 0;
- x.add_adj = 0;
+ fib_prefix_t pfx = {
+ .fp_len = a->address_length,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr.ip6 = *address,
+ };
a->neighbor_probe_adj_index = ~0;
if (a->address_length < 128)
- {
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &x.adj_index);
- ip6_adjacency_set_interface_route (vnm, adj, sw_if_index, a - lm->if_address_pool);
- ip_call_add_del_adjacency_callbacks (lm, x.adj_index, /* is_del */ 0);
- ip6_add_del_route (im, &x);
- a->neighbor_probe_adj_index = x.adj_index;
- }
-
- /* Add e.g. ::1/128 as local to this host. */
- adj = ip_add_adjacency (lm, /* template */ 0, /* block size */ 1,
- &x.adj_index);
+ {
+ fib_node_index_t fei;
+
+ fei = fib_table_entry_update_one_path(fib_index,
+ &pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_ATTACHED),
+ FIB_PROTOCOL_IP6,
+ NULL, /* No next-hop address */
+ sw_if_index,
+ ~0, // invalid FIB index
+ 1,
+ MPLS_LABEL_INVALID,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ a->neighbor_probe_adj_index = fib_entry_get_adj(fei);
+ }
- classify_table_index = ~0;
+ pfx.fp_len = 128;
if (sw_if_index < vec_len (lm->classify_table_index_by_sw_if_index))
- classify_table_index = lm->classify_table_index_by_sw_if_index [sw_if_index];
- if (classify_table_index != (u32) ~0)
+ {
+ u32 classify_table_index =
+ lm->classify_table_index_by_sw_if_index [sw_if_index];
+ if (classify_table_index != (u32) ~0)
+ {
+ dpo_id_t dpo = DPO_NULL;
+
+ dpo_set(&dpo,
+ DPO_CLASSIFY,
+ DPO_PROTO_IP4,
+ classify_dpo_create(FIB_PROTOCOL_IP6,
+ classify_table_index));
+
+ fib_table_entry_special_dpo_add(fib_index,
+ &pfx,
+ FIB_SOURCE_CLASSIFY,
+ FIB_ENTRY_FLAG_NONE,
+ &dpo);
+ dpo_reset(&dpo);
+ }
+ }
+
+ fib_table_entry_update_one_path(fib_index,
+ &pfx,
+ FIB_SOURCE_INTERFACE,
+ (FIB_ENTRY_FLAG_CONNECTED |
+ FIB_ENTRY_FLAG_LOCAL),
+ FIB_PROTOCOL_IP6,
+ &pfx.fp_addr,
+ sw_if_index,
+ ~0, // invalid FIB index
+ 1,
+ MPLS_LABEL_INVALID,
+ FIB_ROUTE_PATH_FLAG_NONE);
+}
+
+static void
+ip6_del_interface_routes (ip6_main_t * im,
+ u32 fib_index,
+ ip6_address_t * address,
+ u32 address_length)
+{
+ fib_prefix_t pfx = {
+ .fp_len = address_length,
+ .fp_proto = FIB_PROTOCOL_IP6,
+ .fp_addr.ip6 = *address,
+ };
+
+ if (pfx.fp_len < 128)
{
- adj->lookup_next_index = IP_LOOKUP_NEXT_CLASSIFY;
- adj->classify.table_index = classify_table_index;
+ fib_table_entry_delete(fib_index,
+ &pfx,
+ FIB_SOURCE_INTERFACE);
+
}
- else
- adj->lookup_next_index = IP_LOOKUP_NEXT_LOCAL;
-
- adj->if_address_index = a - lm->if_address_pool;
- adj->rewrite_header.sw_if_index = sw_if_index;
- adj->rewrite_header.max_l3_packet_bytes = hw_if->max_l3_packet_bytes[VLIB_RX];
- adj->rewrite_header.data_bytes = 0;
- ip_call_add_del_adjacency_callbacks (lm, x.adj_index, /* is_del */ 0);
- x.dst_address_length = 128;
- ip6_add_del_route (im, &x);
+
+ pfx.fp_len = 128;
+ fib_table_entry_delete(fib_index,
+ &pfx,
+ FIB_SOURCE_INTERFACE);
}
-static void
-ip6_del_interface_routes (ip6_main_t * im, u32 fib_index,
- ip6_address_t * address, u32 address_length)
+void
+ip6_sw_interface_enable_disable (u32 sw_if_index,
+ u32 is_enable)
{
- ip6_add_del_route_args_t x;
-
- /* Add e.g. 1.0.0.0/8 as interface route (arp for Ethernet). */
- x.table_index_or_table_id = fib_index;
- x.flags = (IP6_ROUTE_FLAG_DEL
- | IP6_ROUTE_FLAG_FIB_INDEX
- | IP6_ROUTE_FLAG_NO_REDISTRIBUTE);
- x.dst_address = address[0];
- x.dst_address_length = address_length;
- x.adj_index = ~0;
- x.n_add_adj = 0;
- x.add_adj = 0;
-
- if (address_length < 128)
+ vlib_main_t * vm = vlib_get_main();
+ ip6_main_t * im = &ip6_main;
+ ip_lookup_main_t * lm = &im->lookup_main;
+ u32 ci, cast;
+ u32 lookup_feature_index;
+
+ vec_validate_init_empty (im->ip_enabled_by_sw_if_index, sw_if_index, 0);
+
+ /*
+ * enable/disable only on the 1<->0 transition
+ */
+ if (is_enable)
{
- /* Don't wipe out fe80::0/64 */
- if (address_length != 64 ||
- address[0].as_u64[0] != clib_net_to_host_u64(0xfe80000000000000ULL))
- ip6_add_del_route (im, &x);
+ if (1 != ++im->ip_enabled_by_sw_if_index[sw_if_index])
+ return;
+ }
+ else
+ {
+ ASSERT(im->ip_enabled_by_sw_if_index[sw_if_index] > 0);
+ if (0 != --im->ip_enabled_by_sw_if_index[sw_if_index])
+ return;
}
- x.dst_address_length = 128;
- ip6_add_del_route (im, &x);
+ for (cast = 0; cast <= VNET_IP_RX_MULTICAST_FEAT; cast++)
+ {
+ ip_config_main_t * cm = &lm->feature_config_mains[cast];
+ vnet_config_main_t * vcm = &cm->config_main;
- ip6_delete_matching_routes (im,
- fib_index,
- IP6_ROUTE_FLAG_FIB_INDEX,
- address,
- address_length);
-}
+ vec_validate_init_empty (cm->config_index_by_sw_if_index, sw_if_index, ~0);
+ ci = cm->config_index_by_sw_if_index[sw_if_index];
-typedef struct {
- u32 sw_if_index;
- ip6_address_t address;
- u32 length;
-} ip6_interface_address_t;
+ if (cast == VNET_IP_RX_UNICAST_FEAT)
+ lookup_feature_index = im->ip6_unicast_rx_feature_lookup;
+ else
+ lookup_feature_index = im->ip6_multicast_rx_feature_lookup;
-static clib_error_t *
-ip6_add_del_interface_address_internal (vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t * new_address,
- u32 new_length,
- u32 redistribute,
- u32 insert_routes,
- u32 is_del);
+ if (is_enable)
+ ci = vnet_config_add_feature (vm, vcm,
+ ci,
+ lookup_feature_index,
+ /* config data */ 0,
+ /* # bytes of config data */ 0);
+ else
+ ci = vnet_config_del_feature (vm, vcm,
+ ci,
+ lookup_feature_index,
+ /* config data */ 0,
+ /* # bytes of config data */ 0);
-static clib_error_t *
-ip6_add_del_interface_address_internal (vlib_main_t * vm,
- u32 sw_if_index,
- ip6_address_t * address,
- u32 address_length,
- u32 redistribute,
- u32 insert_routes,
- u32 is_del)
+ cm->config_index_by_sw_if_index[sw_if_index] = ci;
+ }
+}
+
+clib_error_t *
+ip6_add_del_interface_address (vlib_main_t * vm,
+ u32 sw_if_index,
+ ip6_address_t * address,
+ u32 address_length,
+ u32 is_del)
{
vnet_main_t * vnm = vnet_get_main();
ip6_main_t * im = &ip6_main;
goto done;
}
- if (vnet_sw_interface_is_admin_up (vnm, sw_if_index) && insert_routes)
- {
- if (is_del)
- ip6_del_interface_routes (im, ip6_af.fib_index, address,
- address_length);
-
- else
- ip6_add_interface_routes (vnm, sw_if_index,
- im, ip6_af.fib_index,
- pool_elt_at_index (lm->if_address_pool, if_address_index));
- }
+ if (is_del)
+ ip6_del_interface_routes (im, ip6_af.fib_index, address,
+ address_length);
+ else
+ ip6_add_interface_routes (vnm, sw_if_index,
+ im, ip6_af.fib_index,
+ pool_elt_at_index (lm->if_address_pool, if_address_index));
{
ip6_add_del_interface_address_callback_t * cb;
return error;
}
-clib_error_t *
-ip6_add_del_interface_address (vlib_main_t * vm, u32 sw_if_index,
- ip6_address_t * address, u32 address_length,
- u32 is_del)
-{
- return ip6_add_del_interface_address_internal
- (vm, sw_if_index, address, address_length,
- /* redistribute */ 1,
- /* insert_routes */ 1,
- is_del);
-}
-
clib_error_t *
ip6_sw_interface_admin_up_down (vnet_main_t * vnm,
u32 sw_if_index,
VNET_IP6_UNICAST_FEATURE_INIT (ip6_lookup, static) = {
.node_name = "ip6-lookup",
- .runs_before = 0, /* not before any other features */
+ .runs_before = ORDER_CONSTRAINTS {"ip6-drop", 0},
.feature_index = &ip6_main.ip6_unicast_rx_feature_lookup,
};
+VNET_IP6_UNICAST_FEATURE_INIT (ip6_drop, static) = {
+ .node_name = "ip6-drop",
+ .runs_before = 0, /*last feature*/
+ .feature_index = &ip6_main.ip6_unicast_rx_feature_drop,
+};
+
/* Built-in ip6 multicast rx feature path definition (none now) */
VNET_IP6_MULTICAST_FEATURE_INIT (ip6_vpath_mc, static) = {
.node_name = "vpath-input-ip6",
VNET_IP6_MULTICAST_FEATURE_INIT (ip6_lookup, static) = {
.node_name = "ip6-lookup",
- .runs_before = 0, /* not before any other features */
+ .runs_before = ORDER_CONSTRAINTS {"ip6-drop", 0},
.feature_index = &ip6_main.ip6_multicast_rx_feature_lookup,
};
+VNET_IP6_MULTICAST_FEATURE_INIT (ip6_drop_mc, static) = {
+ .node_name = "ip6-drop",
+ .runs_before = 0, /* last feature */
+ .feature_index = &ip6_main.ip6_multicast_rx_feature_drop,
+};
+
static char * rx_feature_start_nodes[] =
{"ip6-input"};
feature_start_nodes,
feature_start_len,
cast,
- 0 /* is_ip4 */)))
+ VNET_L3_PACKET_TYPE_IP6)))
return error;
}
return 0;
ci = cm->config_index_by_sw_if_index[sw_if_index];
if (cast == VNET_IP_RX_UNICAST_FEAT)
- feature_index = im->ip6_unicast_rx_feature_lookup;
+ feature_index = im->ip6_unicast_rx_feature_drop;
else if (cast == VNET_IP_RX_MULTICAST_FEAT)
- feature_index = im->ip6_multicast_rx_feature_lookup;
+ feature_index = im->ip6_multicast_rx_feature_drop;
else
feature_index = im->ip6_tx_feature_interface_output;
/* config data */ 0,
/* # bytes of config data */ 0);
else
- ci = vnet_config_del_feature (vm, vcm,
- ci,
- feature_index,
- /* config data */ 0,
- /* # bytes of config data */ 0);
-
+ {
+ ci = vnet_config_del_feature (vm, vcm, ci,
+ feature_index,
+ /* config data */ 0,
+ /* # bytes of config data */ 0);
+ if (vec_len(im->ip_enabled_by_sw_if_index) > sw_if_index)
+ im->ip_enabled_by_sw_if_index[sw_if_index] = 0;
+ }
cm->config_index_by_sw_if_index[sw_if_index] = ci;
/*
* note: do not update the tx feature count here.
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
- return ip6_lookup_inline (vm, node, frame, /* is_indirect */ 0);
+ return ip6_lookup_inline (vm, node, frame);
}
static u8 * format_ip6_lookup_trace (u8 * s, va_list * args);
.next_nodes = IP6_LOOKUP_NEXT_NODES,
};
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_lookup_node, ip6_lookup);
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_lookup_node, ip6_lookup)
-static uword
-ip6_indirect (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+always_inline uword
+ip6_load_balance (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
{
- return ip6_lookup_inline (vm, node, frame, /* is_indirect */ 1);
-}
+ vlib_combined_counter_main_t * cm = &load_balance_main.lbm_via_counters;
+ u32 n_left_from, n_left_to_next, * from, * to_next;
+ ip_lookup_next_t next;
+ u32 cpu_index = os_get_cpu_number();
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next = node->cached_next_index;
+
+ if (node->flags & VLIB_NODE_FLAG_TRACE)
+ ip6_forward_next_trace(vm, node, frame, VLIB_TX);
+
+ while (n_left_from > 0)
+ {
+ vlib_get_next_frame (vm, node, next,
+ to_next, n_left_to_next);
+
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ ip_lookup_next_t next0;
+ const load_balance_t *lb0;
+ vlib_buffer_t * p0;
+ u32 pi0, lbi0, hc0;
+ const ip6_header_t *ip0;
+ const dpo_id_t *dpo0;
+ pi0 = from[0];
+ to_next[0] = pi0;
+
+ p0 = vlib_get_buffer (vm, pi0);
+
+ ip0 = vlib_buffer_get_current (p0);
+ lbi0 = vnet_buffer (p0)->ip.adj_index[VLIB_TX];
+
+ lb0 = load_balance_get(lbi0);
+ hc0 = lb0->lb_hash_config;
+ vnet_buffer(p0)->ip.flow_hash = ip6_compute_flow_hash(ip0, hc0);
+
+ dpo0 = load_balance_get_bucket_i(lb0,
+ vnet_buffer(p0)->ip.flow_hash &
+ (lb0->lb_n_buckets - 1));
-VLIB_REGISTER_NODE (ip6_indirect_node) = {
- .function = ip6_indirect,
- .name = "ip6-indirect",
+ next0 = dpo0->dpoi_next_node;
+ vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
+
+ vlib_increment_combined_counter
+ (cm, cpu_index, lbi0, 1,
+ vlib_buffer_length_in_chain (vm, p0));
+
+ from += 1;
+ to_next += 1;
+ n_left_to_next -= 1;
+ n_left_from -= 1;
+
+ if (PREDICT_FALSE (next0 != next))
+ {
+ n_left_to_next += 1;
+ vlib_put_next_frame (vm, node, next, n_left_to_next);
+ next = next0;
+ vlib_get_next_frame (vm, node, next,
+ to_next, n_left_to_next);
+ to_next[0] = pi0;
+ to_next += 1;
+ n_left_to_next -= 1;
+ }
+ }
+
+ vlib_put_next_frame (vm, node, next, n_left_to_next);
+ }
+
+ return frame->n_vectors;
+}
+
+VLIB_REGISTER_NODE (ip6_load_balance_node) = {
+ .function = ip6_load_balance,
+ .name = "ip6-load-balance",
.vector_size = sizeof (u32),
.sibling_of = "ip6-lookup",
.format_trace = format_ip6_lookup_trace,
.n_next_nodes = 0,
};
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_indirect_node, ip6_indirect);
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_load_balance_node, ip6_load_balance)
typedef struct {
/* Adjacency taken. */
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
ip6_forward_next_trace_t * t = va_arg (*args, ip6_forward_next_trace_t *);
- vnet_main_t * vnm = vnet_get_main();
- ip6_main_t * im = &ip6_main;
uword indent = format_get_indent (s);
- s = format (s, "fib %d adj-idx %d : %U flow hash: 0x%08x",
- t->fib_index, t->adj_index, format_ip_adjacency,
- vnm, &im->lookup_main, t->adj_index, t->flow_hash);
+ s = format (s, "fib %d dpo-idx %d : flow hash: 0x%08x",
+ t->fib_index, t->adj_index, t->flow_hash);
s = format(s, "\n%U%U",
format_white_space, indent,
format_ip6_header, t->packet_data);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
ip6_forward_next_trace_t * t = va_arg (*args, ip6_forward_next_trace_t *);
vnet_main_t * vnm = vnet_get_main();
- ip6_main_t * im = &ip6_main;
uword indent = format_get_indent (s);
s = format (s, "tx_sw_if_index %d adj-idx %d : %U flow hash: 0x%08x",
t->fib_index, t->adj_index, format_ip_adjacency,
- vnm, &im->lookup_main, t->adj_index, t->flow_hash);
+ vnm, t->adj_index, FORMAT_IP_ADJACENCY_NONE,
+ t->flow_hash);
s = format (s, "\n%U%U",
format_white_space, indent,
format_ip_adjacency_packet_data,
- vnm, &im->lookup_main, t->adj_index,
+ vnm, t->adj_index,
t->packet_data, sizeof (t->packet_data));
return s;
}
vlib_frame_t * frame)
{ return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_ADJACENCY_PUNT); }
-static uword
-ip6_miss (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
-{ return ip6_drop_or_punt (vm, node, frame, IP6_ERROR_DST_LOOKUP_MISS); }
-
VLIB_REGISTER_NODE (ip6_drop_node,static) = {
.function = ip6_drop,
.name = "ip6-drop",
},
};
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_drop_node, ip6_drop);
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_drop_node, ip6_drop)
VLIB_REGISTER_NODE (ip6_punt_node,static) = {
.function = ip6_punt,
},
};
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_node, ip6_punt);
-
-VLIB_REGISTER_NODE (ip6_miss_node,static) = {
- .function = ip6_miss,
- .name = "ip6-miss",
- .vector_size = sizeof (u32),
-
- .format_trace = format_ip6_forward_next_trace,
-
- .n_next_nodes = 1,
- .next_nodes = {
- [0] = "error-drop",
- },
-};
-
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_miss_node, ip6_miss);
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_node, ip6_punt)
VLIB_REGISTER_NODE (ip6_multicast_node,static) = {
.function = ip6_drop,
/* Drop packets from unroutable hosts. */
/* If this is a neighbor solicitation (ICMP), skip source RPF check */
- if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL && type0 != IP_BUILTIN_PROTOCOL_ICMP)
+ if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL &&
+ type0 != IP_BUILTIN_PROTOCOL_ICMP &&
+ !ip6_address_is_link_local_unicast(&ip0->src_address))
{
u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0);
- error0 = (lm->miss_adj_index == src_adj_index0
+ error0 = (ADJ_INDEX_INVALID == src_adj_index0
? IP6_ERROR_SRC_LOOKUP_MISS
: error0);
}
- if (error1 == IP6_ERROR_UNKNOWN_PROTOCOL && type1 != IP_BUILTIN_PROTOCOL_ICMP)
+ if (error1 == IP6_ERROR_UNKNOWN_PROTOCOL &&
+ type1 != IP_BUILTIN_PROTOCOL_ICMP &&
+ !ip6_address_is_link_local_unicast(&ip1->src_address))
{
u32 src_adj_index1 = ip6_src_lookup_for_packet (im, p1, ip1);
- error1 = (lm->miss_adj_index == src_adj_index1
+ error1 = (ADJ_INDEX_INVALID == src_adj_index1
? IP6_ERROR_SRC_LOOKUP_MISS
: error1);
}
: error0);
/* If this is a neighbor solicitation (ICMP), skip source RPF check */
- if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL && type0 != IP_BUILTIN_PROTOCOL_ICMP)
+ if (error0 == IP6_ERROR_UNKNOWN_PROTOCOL &&
+ type0 != IP_BUILTIN_PROTOCOL_ICMP &&
+ !ip6_address_is_link_local_unicast(&ip0->src_address))
{
u32 src_adj_index0 = ip6_src_lookup_for_packet (im, p0, ip0);
- error0 = (lm->miss_adj_index == src_adj_index0
+ error0 = (ADJ_INDEX_INVALID == src_adj_index0
? IP6_ERROR_SRC_LOOKUP_MISS
: error0);
}
},
};
-VLIB_NODE_FUNCTION_MULTIARCH (ip6_local_node, ip6_local);
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_local_node, ip6_local)
void ip6_register_protocol (u32 protocol, u32 node_index)
{
} ip6_discover_neighbor_error_t;
static uword
-ip6_discover_neighbor (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ip6_discover_neighbor_inline (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame,
+ int is_glean)
{
vnet_main_t * vnm = vnet_get_main();
ip6_main_t * im = &ip6_main;
adj0 = ip_get_adjacency (lm, adj_index0);
- if (adj0->arp.next_hop.ip6.as_u64[0] ||
- adj0->arp.next_hop.ip6.as_u64[1]) {
- ip0->dst_address.as_u64[0] = adj0->arp.next_hop.ip6.as_u64[0];
- ip0->dst_address.as_u64[1] = adj0->arp.next_hop.ip6.as_u64[1];
- }
+ if (!is_glean)
+ {
+ ip0->dst_address.as_u64[0] = adj0->sub_type.nbr.next_hop.ip6.as_u64[0];
+ ip0->dst_address.as_u64[1] = adj0->sub_type.nbr.next_hop.ip6.as_u64[1];
+ }
a0 = hash_seeds[0];
b0 = hash_seeds[1];
* Choose source address based on destination lookup
* adjacency.
*/
- if (ip6_src_address_for_packet (im, p0, &h0->ip.src_address,
- sw_if_index0)) {
- //There is no address on the interface
+ if (ip6_src_address_for_packet (lm,
+ sw_if_index0,
+ &h0->ip.src_address))
+ {
+ /* There is no address on the interface */
p0->error = node->errors[IP6_DISCOVER_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS];
vlib_buffer_free(vm, &bi0, 1);
continue;
- }
+ }
/*
* Destination address is a solicited node multicast address.
return frame->n_vectors;
}
+static uword
+ip6_discover_neighbor (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (ip6_discover_neighbor_inline(vm, node, frame, 0));
+}
+
+static uword
+ip6_glean (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return (ip6_discover_neighbor_inline(vm, node, frame, 1));
+}
+
static char * ip6_discover_neighbor_error_strings[] = {
[IP6_DISCOVER_NEIGHBOR_ERROR_DROP] = "address overflow drops",
[IP6_DISCOVER_NEIGHBOR_ERROR_REQUEST_SENT]
},
};
+VLIB_REGISTER_NODE (ip6_glean_node) = {
+ .function = ip6_glean,
+ .name = "ip6-glean",
+ .vector_size = sizeof (u32),
+
+ .format_trace = format_ip6_forward_next_trace,
+
+ .n_errors = ARRAY_LEN (ip6_discover_neighbor_error_strings),
+ .error_strings = ip6_discover_neighbor_error_strings,
+
+ .n_next_nodes = IP6_DISCOVER_NEIGHBOR_N_NEXT,
+ .next_nodes = {
+ [IP6_DISCOVER_NEIGHBOR_NEXT_DROP] = "error-drop",
+ [IP6_DISCOVER_NEIGHBOR_NEXT_REPLY_TX] = "interface-output",
+ },
+};
+
clib_error_t *
ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst, u32 sw_if_index)
{
adj0 = ip_get_adjacency (lm, adj_index0);
adj1 = ip_get_adjacency (lm, adj_index1);
- if (rewrite_for_locally_received_packets)
- {
- /*
- * If someone sends e.g. an icmp6 w/ src = dst = interface addr,
- * we end up here with a local adjacency in hand
- */
- if (PREDICT_FALSE(adj0->lookup_next_index
- == IP_LOOKUP_NEXT_LOCAL))
- error0 = IP6_ERROR_SPOOFED_LOCAL_PACKETS;
- if (PREDICT_FALSE(adj1->lookup_next_index
- == IP_LOOKUP_NEXT_LOCAL))
- error1 = IP6_ERROR_SPOOFED_LOCAL_PACKETS;
- }
-
rw_len0 = adj0[0].rewrite_header.data_bytes;
rw_len1 = adj1[0].rewrite_header.data_bytes;
vnet_buffer(p0)->ip.save_rewrite_length = rw_len0;
vnet_buffer(p1)->ip.save_rewrite_length = rw_len1;
- vlib_increment_combined_counter (&lm->adjacency_counters,
+ vlib_increment_combined_counter (&adjacency_counters,
cpu_index,
adj_index0,
/* packet increment */ 0,
/* byte increment */ rw_len0);
- vlib_increment_combined_counter (&lm->adjacency_counters,
+ vlib_increment_combined_counter (&adjacency_counters,
cpu_index,
adj_index1,
/* packet increment */ 0,
}
}
- if (rewrite_for_locally_received_packets)
- {
- if (PREDICT_FALSE(adj0->lookup_next_index
- == IP_LOOKUP_NEXT_LOCAL))
- error0 = IP6_ERROR_SPOOFED_LOCAL_PACKETS;
- }
-
/* Guess we are only writing on simple Ethernet header. */
vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t));
rw_len0 = adj0[0].rewrite_header.data_bytes;
vnet_buffer(p0)->ip.save_rewrite_length = rw_len0;
- vlib_increment_combined_counter (&lm->adjacency_counters,
+ vlib_increment_combined_counter (&adjacency_counters,
cpu_index,
adj_index0,
/* packet increment */ 0,
/* rewrite_for_locally_received_packets */ 1);
}
+static uword
+ip6_midchain (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ return ip6_rewrite_inline (vm, node, frame,
+ /* rewrite_for_locally_received_packets */ 0);
+}
+
+VLIB_REGISTER_NODE (ip6_midchain_node) = {
+ .function = ip6_midchain,
+ .name = "ip6-midchain",
+ .vector_size = sizeof (u32),
+
+ .format_trace = format_ip6_forward_next_trace,
+
+ .next_nodes = {
+ [IP6_REWRITE_NEXT_DROP] = "error-drop",
+ },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (ip6_midchain_node, ip6_midchain)
+
VLIB_REGISTER_NODE (ip6_rewrite_node) = {
.function = ip6_rewrite_transit,
.name = "ip6-rewrite",
if (im->lookup_table_size == 0)
im->lookup_table_size = IP6_FIB_DEFAULT_HASH_MEMORY_SIZE;
- BV(clib_bihash_init) (&im->ip6_lookup_table, "ip6 lookup table",
+ BV(clib_bihash_init) (&(im->ip6_table[IP6_FIB_TABLE_FWDING].ip6_hash),
+ "ip6 FIB fwding table",
im->lookup_table_nbuckets,
im->lookup_table_size);
-
+ BV(clib_bihash_init) (&im->ip6_table[IP6_FIB_TABLE_NON_FWDING].ip6_hash,
+ "ip6 FIB non-fwding table",
+ im->lookup_table_nbuckets,
+ im->lookup_table_size);
+
/* Create FIB with index 0 and table id of 0. */
- find_ip6_fib_by_table_index_or_id (im, /* table id */ 0, IP6_ROUTE_FLAG_TABLE_ID);
+ fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6, 0);
{
pg_node_t * pn;
}
{
- ip6_main_t * im = &ip6_main;
- ip6_fib_t * fib =
- find_ip6_fib_by_table_index_or_id (im, table_id, IP6_ROUTE_FLAG_TABLE_ID);
+ u32 fib_index = fib_table_find_or_create_and_lock(FIB_PROTOCOL_IP6,
+ table_id);
- if (fib)
- {
- vec_validate (im->fib_index_by_sw_if_index, sw_if_index);
- im->fib_index_by_sw_if_index[sw_if_index] = fib->index;
- }
+ vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index);
+ ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
}
+
done:
return error;
}
if (p == 0)
return -1;
- fib = vec_elt_at_index (im6->fibs, p[0]);
+ fib = ip6_fib_get (p[0]);
fib->flow_hash_config = flow_hash_config;
return 1;
Code Review / vpp.git / blobdiff