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authorFlorin Coras <fcoras@cisco.com>2017-06-07 21:50:57 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-06-08 17:43:56 +0000
commita4e63e5593d53692b8085dc666f8670ece135f32 (patch)
tree42cc0326c181351c7dcd0ce08a478dc076858d86 /src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c
parent6899a30bd70f219cfd182dfb0e9ac96faf5d9892 (diff)
Add gpe native-forward static route support
Change-Id: I744e7d64d94dbb302f2c1246663480f720672ee2 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c')
-rw-r--r--src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c51
1 files changed, 46 insertions, 5 deletions
diff --git a/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c b/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c
index 0b7b0fefea3..395b493a719 100644
--- a/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c
+++ b/src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c
@@ -279,14 +279,46 @@ ip_src_fib_add_route (u32 src_fib_index,
vec_free (rpaths);
}
+static void
+gpe_native_fwd_add_del_lfe (lisp_gpe_fwd_entry_t * lfe, u8 is_add)
+{
+ lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
+ u8 found = 0, ip_version;
+ u32 *lfei, new_lfei;
+ ip_version = ip_prefix_version (&lfe->key->rmt.ippref);
+
+ new_lfei = lfe - lgm->lisp_fwd_entry_pool;
+ vec_foreach (lfei, lgm->native_fwd_lfes[ip_version])
+ {
+ lfe = pool_elt_at_index (lgm->lisp_fwd_entry_pool, lfei[0]);
+ if (lfei[0] == new_lfei)
+ {
+ found = 1;
+ break;
+ }
+ }
+
+ if (is_add)
+ {
+ if (!found)
+ vec_add1 (lgm->native_fwd_lfes[ip_version], new_lfei);
+ }
+ else
+ {
+ if (found)
+ vec_del1 (lgm->native_fwd_lfes[ip_version], lfei[0]);
+ }
+}
static void
create_fib_entries (lisp_gpe_fwd_entry_t * lfe)
{
+ lisp_gpe_main_t *lgm = vnet_lisp_gpe_get_main ();
dpo_proto_t dproto;
ip_prefix_t ippref;
- dproto = (ip_prefix_version (&lfe->key->rmt.ippref) == IP4 ?
- DPO_PROTO_IP4 : DPO_PROTO_IP6);
+ fib_prefix_t fib_prefix;
+ u8 ip_version = ip_prefix_version (&lfe->key->rmt.ippref);
+ dproto = (ip_version == IP4 ? DPO_PROTO_IP4 : DPO_PROTO_IP6);
if (lfe->is_src_dst)
{
@@ -306,11 +338,19 @@ create_fib_entries (lisp_gpe_fwd_entry_t * lfe)
switch (lfe->action)
{
+ case LISP_FORWARD_NATIVE:
+ /* TODO handle route overlaps with fib and default route */
+ if (vec_len (lgm->native_fwd_rpath[ip_version]))
+ {
+ ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &fib_prefix);
+ fib_table_entry_update (lfe->eid_fib_index, &fib_prefix,
+ FIB_SOURCE_LISP, FIB_ENTRY_FLAG_NONE,
+ lgm->native_fwd_rpath[ip_version]);
+ gpe_native_fwd_add_del_lfe (lfe, 1);
+ break;
+ }
case LISP_NO_ACTION:
/* TODO update timers? */
- case LISP_FORWARD_NATIVE:
- /* TODO check if route/next-hop for eid exists in fib and add
- * more specific for the eid with the next-hop found */
case LISP_SEND_MAP_REQUEST:
/* insert tunnel that always sends map-request */
dpo_copy (&dpo, lisp_cp_dpo_get (dproto));
@@ -343,6 +383,7 @@ delete_fib_entries (lisp_gpe_fwd_entry_t * lfe)
ip_prefix_to_fib_prefix (&lfe->key->rmt.ippref, &dst_fib_prefix);
fib_table_entry_delete (lfe->src_fib_index, &dst_fib_prefix,
FIB_SOURCE_LISP);
+ gpe_native_fwd_add_del_lfe (lfe, 0);
}
}