diff options
author | 2017-06-07 21:50:57 -0700 | |
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committer | 2017-06-08 17:43:56 +0000 | |
commit | a4e63e5593d53692b8085dc666f8670ece135f32 (patch) | |
tree | 42cc0326c181351c7dcd0ce08a478dc076858d86 /src/vnet/lisp-gpe/lisp_gpe_fwd_entry.c | |
parent | 6899a30bd70f219cfd182dfb0e9ac96faf5d9892 (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.c | 51 |
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 0b7b0fef..395b493a 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); } } |