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-rw-r--r--vnet/vnet/lisp-gpe/interface.c6
-rw-r--r--vnet/vnet/lisp-gpe/ip_forward.c81
-rw-r--r--vnet/vnet/lisp-gpe/lisp_gpe.c31
3 files changed, 56 insertions, 62 deletions
diff --git a/vnet/vnet/lisp-gpe/interface.c b/vnet/vnet/lisp-gpe/interface.c
index 7537962b3bc..bda68d6ea4b 100644
--- a/vnet/vnet/lisp-gpe/interface.c
+++ b/vnet/vnet/lisp-gpe/interface.c
@@ -65,7 +65,7 @@ get_one_tunnel_inline (lisp_gpe_main_t * lgm, vlib_buffer_t * b0,
else
adj0 = ip_get_adjacency (lgm->lm6, adj_index0);
- tunnel_index0 = adj0->rewrite_header.node_index;
+ tunnel_index0 = adj0->if_address_index;
t0[0] = pool_elt_at_index(lgm->tunnels, tunnel_index0);
ASSERT(t0[0] != 0);
@@ -114,8 +114,8 @@ get_two_tunnels_inline (lisp_gpe_main_t * lgm, vlib_buffer_t * b0,
adj1 = ip_get_adjacency (lgm->lm6, adj_index1);
}
- tunnel_index0 = adj0->rewrite_header.node_index;
- tunnel_index1 = adj1->rewrite_header.node_index;
+ tunnel_index0 = adj0->if_address_index;
+ tunnel_index1 = adj1->if_address_index;
t0[0] = pool_elt_at_index(lgm->tunnels, tunnel_index0);
t1[0] = pool_elt_at_index(lgm->tunnels, tunnel_index1);
diff --git a/vnet/vnet/lisp-gpe/ip_forward.c b/vnet/vnet/lisp-gpe/ip_forward.c
index fcb453c6486..9d999faa0e7 100644
--- a/vnet/vnet/lisp-gpe/ip_forward.c
+++ b/vnet/vnet/lisp-gpe/ip_forward.c
@@ -245,12 +245,16 @@ ip4_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
/* dst adj should point to lisp gpe lookup */
dst_adj.lookup_next_index = lgm->ip4_lookup_next_lgpe_ip4_lookup;
- /* make sure we have different signatures for adj in different tables
- * but with the same lookup_next_index */
- dst_adj.explicit_fib_index = table_id;
-
+ /* explicit_fib_index is used in IP6 FIB lookup, don't reuse it */
+ dst_adj.explicit_fib_index = ~0;
dst_adj.n_adj = 1;
+ /* make sure we have different signatures for adj in different tables
+ * but with the same lookup_next_index and for adj in the same table
+ * but associated to different destinations */
+ dst_adj.if_address_index = table_id;
+ dst_adj.indirect.next_hop.ip4 = dst;
+
memset(&a, 0, sizeof(a));
a.flags = IP4_ROUTE_FLAG_TABLE_ID;
a.table_index_or_table_id = table_id; /* vrf */
@@ -267,11 +271,10 @@ ip4_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
p = ip4_get_route (lgm->im4, table_id, 0, dst.as_u8,
dst_address_length);
- ASSERT(p != 0);
-
/* make sure insertion succeeded */
if (CLIB_DEBUG)
{
+ ASSERT(p != 0);
dst_adjp = ip_get_adjacency (lgm->lm4, p[0]);
ASSERT(dst_adjp->rewrite_header.sw_if_index
== dst_adj.rewrite_header.sw_if_index);
@@ -291,12 +294,6 @@ ip4_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
dst_adjp = ip_get_adjacency (lgm->lm4, p[0]);
- /* make sure adj signature is unique, i.e., fill in mcast_group_index
- * and saved_lookup_next index with data that makes this adj unique.
- * All these fields are (and should stay that way) unused by LISP. */
- add_adj->mcast_group_index = table_id;
- add_adj->saved_lookup_next_index = dst_adjp->rewrite_header.sw_if_index;
-
/* add/del src prefix to src fib */
memset(&a, 0, sizeof(a));
a.flags = IP4_ROUTE_FLAG_TABLE_ID;
@@ -311,15 +308,15 @@ ip4_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
ip4_sd_fib_add_del_src_route (lgm, &a);
/* make sure insertion succeeded */
- if (CLIB_DEBUG)
+ if (CLIB_DEBUG && is_add)
{
uword * sai;
ip_adjacency_t * src_adjp;
sai = ip4_sd_get_src_route (lgm, dst_adjp->rewrite_header.sw_if_index,
&src, src_address_length);
+ ASSERT(sai != 0);
src_adjp = ip_get_adjacency(lgm->lm4, sai[0]);
- ASSERT(src_adjp->rewrite_header.node_index
- == add_adj->rewrite_header.node_index);
+ ASSERT(src_adjp->if_address_index == add_adj->if_address_index);
}
/* if a delete, check if there are elements left in the src fib */
@@ -383,30 +380,23 @@ static u32
ip6_sd_get_src_route (lisp_gpe_main_t * lgm, u32 src_fib_index,
ip6_address_t * src, u32 address_length)
{
- int i, len;
int rv;
BVT(clib_bihash_kv) kv, value;
ip6_src_fib_t * fib = pool_elt_at_index (lgm->ip6_src_fibs, src_fib_index);
- len = vec_len (fib->prefix_lengths_in_search_order);
+ ip6_address_t * mask;
- for (i = 0; i < len; i++)
- {
- int dst_address_length = fib->prefix_lengths_in_search_order[i];
- ip6_address_t * mask;
-
- ASSERT(dst_address_length >= 0 && dst_address_length <= 128);
+ ASSERT(address_length <= 128);
- mask = &fib->fib_masks[dst_address_length];
+ mask = &fib->fib_masks[address_length];
- kv.key[0] = src->as_u64[0] & mask->as_u64[0];
- kv.key[1] = src->as_u64[1] & mask->as_u64[1];
- kv.key[2] = dst_address_length;
+ kv.key[0] = src->as_u64[0] & mask->as_u64[0];
+ kv.key[1] = src->as_u64[1] & mask->as_u64[1];
+ kv.key[2] = address_length;
- rv = BV(clib_bihash_search_inline_2)(&fib->ip6_lookup_table, &kv, &value);
- if (rv == 0)
- return value.value;
- }
+ rv = BV(clib_bihash_search_inline_2)(&fib->ip6_lookup_table, &kv, &value);
+ if (rv == 0)
+ return value.value;
return 0;
}
@@ -577,7 +567,6 @@ ip6_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
/* insert dst prefix to ip6 fib, if it's not in yet */
if (adj_index == 0)
{
-
/* allocate and init src ip6 fib */
pool_get(lgm->ip6_src_fibs, src_fib);
memset(src_fib, 0, sizeof(src_fib[0]));
@@ -591,9 +580,15 @@ ip6_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
/* dst adj should point to lisp gpe ip lookup */
dst_adj.lookup_next_index = lgm->ip6_lookup_next_lgpe_ip6_lookup;
+ /* explicit_fib_index is used in IP6 FIB lookup, don't reuse it */
+ dst_adj.explicit_fib_index = ~0;
+ dst_adj.n_adj = 1;
+
/* make sure we have different signatures for adj in different tables
- * but with the same lookup_next_index */
- dst_adj.explicit_fib_index = table_id;
+ * but with the same lookup_next_index and for adj in the same table
+ * but associated to different destinations */
+ dst_adj.if_address_index = table_id;
+ dst_adj.indirect.next_hop.ip6 = dst;
memset(&a, 0, sizeof(a));
a.flags = IP6_ROUTE_FLAG_TABLE_ID;
@@ -611,11 +606,10 @@ ip6_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
adj_index = ip6_get_route (lgm->im6, table_id, 0, &dst,
dst_address_length);
- ASSERT(adj_index != 0);
-
/* make sure insertion succeeded */
if (CLIB_DEBUG)
{
+ ASSERT(adj_index != 0);
dst_adjp = ip_get_adjacency (lgm->lm6, adj_index);
ASSERT(dst_adjp->rewrite_header.sw_if_index
== dst_adj.rewrite_header.sw_if_index);
@@ -627,20 +621,13 @@ ip6_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
if (adj_index == 0)
{
clib_warning("Trying to delete inexistent dst route for %U. Aborting",
- format_ip6_address_and_length, dst.as_u8,
- dst_address_length);
+ format_ip_prefix, dst_prefix);
return -1;
}
}
dst_adjp = ip_get_adjacency (lgm->lm6, adj_index);
- /* make sure adj signature is unique, i.e., fill in mcast_group_index
- * and saved_lookup_next index with data that makes this adj unique.
- * All these fields are (and should stay that way) unused by LISP. */
- add_adj->mcast_group_index = table_id;
- add_adj->saved_lookup_next_index = dst_adjp->rewrite_header.sw_if_index;
-
/* add/del src prefix to src fib */
memset(&a, 0, sizeof(a));
a.flags = IP6_ROUTE_FLAG_TABLE_ID;
@@ -655,15 +642,15 @@ ip6_sd_fib_add_del_route (lisp_gpe_main_t * lgm, ip_prefix_t * dst_prefix,
ip6_sd_fib_add_del_src_route (lgm, &a);
/* make sure insertion succeeded */
- if (CLIB_DEBUG)
+ if (CLIB_DEBUG && is_add)
{
u32 sai;
ip_adjacency_t * src_adjp;
sai = ip6_sd_get_src_route (lgm, dst_adjp->rewrite_header.sw_if_index,
&src, src_address_length);
+ ASSERT(sai != 0);
src_adjp = ip_get_adjacency(lgm->lm6, sai);
- ASSERT(src_adjp->rewrite_header.node_index
- == add_adj->rewrite_header.node_index);
+ ASSERT(src_adjp->if_address_index == add_adj->if_address_index);
}
/* if a delete, check if there are elements left in the src fib */
diff --git a/vnet/vnet/lisp-gpe/lisp_gpe.c b/vnet/vnet/lisp-gpe/lisp_gpe.c
index c11824e6315..c4f936eccda 100644
--- a/vnet/vnet/lisp-gpe/lisp_gpe.c
+++ b/vnet/vnet/lisp-gpe/lisp_gpe.c
@@ -179,13 +179,20 @@ add_del_negative_fwd_entry (lisp_gpe_main_t * lgm,
vnet_lisp_gpe_add_del_fwd_entry_args_t * a)
{
ip_adjacency_t adj;
+ ip_prefix_t * dpref = &gid_address_ippref(&a->deid);
+ ip_prefix_t * spref = &gid_address_ippref(&a->seid);
+
/* setup adjacency for eid */
memset (&adj, 0, sizeof(adj));
adj.n_adj = 1;
- adj.explicit_fib_index = ~0;
- ip_prefix_t * dpref = &gid_address_ippref(&a->deid);
- ip_prefix_t * spref = &gid_address_ippref(&a->seid);
+ /* fill in 'legal' data to avoid issues */
+ adj.lookup_next_index = (ip_prefix_version(dpref) == IP4) ?
+ lgm->ip4_lookup_next_lgpe_ip4_lookup :
+ lgm->ip6_lookup_next_lgpe_ip6_lookup;
+
+ adj.rewrite_header.sw_if_index = ~0;
+ adj.rewrite_header.next_index = ~0;
switch (a->action)
{
@@ -196,16 +203,15 @@ add_del_negative_fwd_entry (lisp_gpe_main_t * lgm,
* more specific for the eid with the next-hop found */
case SEND_MAP_REQUEST:
/* insert tunnel that always sends map-request */
- adj.rewrite_header.sw_if_index = ~0;
- adj.lookup_next_index = (u32) (ip_prefix_version(dpref) == IP4) ?
- LGPE_IP4_LOOKUP_NEXT_LISP_CP_LOOKUP:
- LGPE_IP6_LOOKUP_NEXT_LISP_CP_LOOKUP;
+ adj.explicit_fib_index = (ip_prefix_version(dpref) == IP4) ?
+ LGPE_IP4_LOOKUP_NEXT_LISP_CP_LOOKUP:
+ LGPE_IP6_LOOKUP_NEXT_LISP_CP_LOOKUP;
/* add/delete route for prefix */
return ip_sd_fib_add_del_route (lgm, dpref, spref, a->table_id, &adj,
a->is_add);
case DROP:
/* for drop fwd entries, just add route, no need to add encap tunnel */
- adj.lookup_next_index = (u32) (ip_prefix_version(dpref) == IP4 ?
+ adj.explicit_fib_index = (ip_prefix_version(dpref) == IP4 ?
LGPE_IP4_LOOKUP_NEXT_DROP : LGPE_IP6_LOOKUP_NEXT_DROP);
/* add/delete route for prefix */
@@ -259,7 +265,7 @@ vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
{
/* send packets that hit this adj to lisp-gpe interface output node in
* requested vrf. */
- lnip = ip_ver == IP4 ?
+ lnip = (ip_ver == IP4) ?
lgm->lgpe_ip4_lookup_next_index_by_table_id :
lgm->lgpe_ip6_lookup_next_index_by_table_id;
lookup_next_index = hash_get(lnip, a->table_id);
@@ -271,9 +277,10 @@ vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
ASSERT(lookup_next_index != 0);
ASSERT(lgpe_sw_if_index != 0);
- /* hijack explicit fib index to store lisp interface node index */
+ /* hijack explicit fib index to store lisp interface node index and
+ * if_address_index for the tunnel index */
adj.explicit_fib_index = lookup_next_index[0];
- adj.rewrite_header.node_index = tun_index;
+ adj.if_address_index = tun_index;
adj.rewrite_header.sw_if_index = lgpe_sw_if_index[0];
}
@@ -291,7 +298,7 @@ vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a,
adj_index);
ASSERT(adjp != 0);
- ASSERT(adjp->rewrite_header.node_index == tun_index);
+ ASSERT(adjp->if_address_index == tun_index);
}
return rv;