*/
static mpls_tunnel_t *mpls_tunnel_pool;
-/**
- * @brief Pool of free tunnel SW indices - i.e. recycled indices
- */
-static u32 * mpls_tunnel_free_hw_if_indices;
-
/**
* @brief DB of SW index to tunnel index
*/
static mpls_tunnel_t*
mpls_tunnel_get_from_sw_if_index (u32 sw_if_index)
{
- if ((vec_len(mpls_tunnel_db) < sw_if_index) ||
+ if ((vec_len(mpls_tunnel_db) <= sw_if_index) ||
(~0 == mpls_tunnel_db[sw_if_index]))
return (NULL);
path_ext = fib_path_ext_list_find_by_path_index(&ctx->mt->mt_path_exts,
path_index);
- if (NULL != path_ext)
- {
- /*
- * found a matching extension. stack it to obtain the forwarding
- * info for this path.
- */
- ctx->next_hops = fib_path_ext_stack(path_ext,
- ctx->fct,
- ctx->fct,
- ctx->next_hops);
- }
- else
- ASSERT(0);
/*
- * else
- * There should be a path-extenios associated with each path
+ * we don't want IP TTL decrements for packets hitting the MPLS labels
+ * we stack on, since the IP TTL decrement is done by the adj
+ */
+ path_ext->fpe_mpls_flags |= FIB_PATH_EXT_MPLS_FLAG_NO_IP_TTL_DECR;
+
+ /*
+ * found a matching extension. stack it to obtain the forwarding
+ * info for this path.
*/
+ ctx->next_hops = fib_path_ext_stack(path_ext,
+ ctx->fct,
+ ctx->fct,
+ ctx->next_hops);
return (FIB_PATH_LIST_WALK_CONTINUE);
}
lb_proto = fib_forw_chain_type_to_dpo_proto(fct);
- fib_path_list_walk(mt->mt_path_list,
- mpls_tunnel_collect_forwarding,
- &ctx);
+ if (FIB_NODE_INDEX_INVALID != mt->mt_path_list)
+ {
+ fib_path_list_walk(mt->mt_path_list,
+ mpls_tunnel_collect_forwarding,
+ &ctx);
+ }
if (!dpo_id_is_valid(dpo_lb))
{
mpls_tunnel_mk_lb(mt,
adj->ia_link,
- (VNET_LINK_MPLS == adj_get_link_type(ai) ?
- FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
- FIB_FORW_CHAIN_TYPE_MPLS_EOS),
+ fib_forw_chain_type_from_link_type(
+ adj_get_link_type(ai)),
&dpo);
adj_nbr_midchain_stack(ai, &dpo);
static void
mpls_tunnel_fixup (vlib_main_t *vm,
ip_adjacency_t *adj,
- vlib_buffer_t *b0)
+ vlib_buffer_t *b0,
+ const void*data)
{
/*
* A no-op w.r.t. the header. but reset the 'have we pushed any
{
case IP_LOOKUP_NEXT_ARP:
case IP_LOOKUP_NEXT_GLEAN:
+ case IP_LOOKUP_NEXT_BCAST:
adj_nbr_midchain_update_rewrite(ai, mpls_tunnel_fixup,
+ NULL,
ADJ_FLAG_NONE,
mpls_tunnel_build_rewrite_i());
break;
* There's no MAC fixup, so the last 2 parameters are 0
*/
adj_mcast_midchain_update_rewrite(ai, mpls_tunnel_fixup,
+ NULL,
ADJ_FLAG_NONE,
mpls_tunnel_build_rewrite_i(),
0, 0);
b0 = vlib_get_buffer(vm, bi0);
vnet_buffer(b0)->ip.adj_index[VLIB_TX] = mt->mt_l2_lb.dpoi_index;
+ /* since we are coming out of the L2 world, where the vlib_buffer
+ * union is used for other things, make sure it is clean for
+ * MPLS from now on.
+ */
+ vnet_buffer(b0)->mpls.first = 0;
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
mt->mt_sibling_index);
dpo_reset(&mt->mt_l2_lb);
- vec_add1 (mpls_tunnel_free_hw_if_indices, mt->mt_hw_if_index);
+ vnet_delete_hw_interface (vnet_get_main(), mt->mt_hw_if_index);
+
pool_put(mpls_tunnel_pool, mt);
mpls_tunnel_db[sw_if_index] = ~0;
}
mt->mt_flags |= MPLS_TUNNEL_FLAG_L2;
/*
- * Create a new, or re=use and old, tunnel HW interface
+ * Create a new tunnel HW interface
*/
- if (vec_len (mpls_tunnel_free_hw_if_indices) > 0)
- {
- mt->mt_hw_if_index =
- mpls_tunnel_free_hw_if_indices[vec_len(mpls_tunnel_free_hw_if_indices)-1];
- _vec_len (mpls_tunnel_free_hw_if_indices) -= 1;
- hi = vnet_get_hw_interface (vnm, mt->mt_hw_if_index);
- hi->hw_instance = mti;
- hi->dev_instance = mti;
- }
- else
- {
- mt->mt_hw_if_index = vnet_register_interface(
- vnm,
- mpls_tunnel_class.index,
- mti,
- mpls_tunnel_hw_interface_class.index,
- mti);
- hi = vnet_get_hw_interface (vnm, mt->mt_hw_if_index);
- }
+ mt->mt_hw_if_index = vnet_register_interface(
+ vnm,
+ mpls_tunnel_class.index,
+ mti,
+ mpls_tunnel_hw_interface_class.index,
+ mti);
+ hi = vnet_get_hw_interface (vnm, mt->mt_hw_if_index);
+
+ /* Standard default MPLS tunnel MTU. */
+ vnet_sw_interface_set_mtu (vnm, hi->sw_if_index, 9000);
/*
* Add the new tunnel to the tunnel DB - key:SW if index
return (fib_path_list_get_n_paths(mt->mt_path_list));
}
+int
+vnet_mpls_tunnel_get_index (u32 sw_if_index)
+{
+ mpls_tunnel_t *mt;
+
+ mt = mpls_tunnel_get_from_sw_if_index(sw_if_index);
+
+ if (NULL == mt)
+ return (~0);
+
+ return (mt - mpls_tunnel_pool);
+}
static clib_error_t *
vnet_create_mpls_tunnel_command_fn (vlib_main_t * vm,
vnet_main_t * vnm = vnet_get_main();
u8 is_del = 0, l2_only = 0, is_multicast =0;
fib_route_path_t rpath, *rpaths = NULL;
- mpls_label_t out_label = MPLS_LABEL_INVALID;
- u32 sw_if_index = ~0;
+ u32 sw_if_index = ~0, payload_proto;
clib_error_t *error = NULL;
memset(&rpath, 0, sizeof(rpath));
+ payload_proto = DPO_PROTO_MPLS;
/* Get a line of input. */
if (! unformat_user (input, unformat_line_input, line_input))
is_del = 0;
else if (unformat (line_input, "add"))
is_del = 0;
- else if (unformat (line_input, "out-label %U",
- unformat_mpls_unicast_label, &out_label))
- {
- vec_add1(rpath.frp_label_stack, out_label);
- }
- else if (unformat (line_input, "via %U %U",
- unformat_ip4_address,
- &rpath.frp_addr.ip4,
- unformat_vnet_sw_interface, vnm,
- &rpath.frp_sw_if_index))
- {
- rpath.frp_weight = 1;
- rpath.frp_proto = DPO_PROTO_IP4;
- }
-
- else if (unformat (line_input, "via %U %U",
- unformat_ip6_address,
- &rpath.frp_addr.ip6,
- unformat_vnet_sw_interface, vnm,
- &rpath.frp_sw_if_index))
- {
- rpath.frp_weight = 1;
- rpath.frp_proto = DPO_PROTO_IP6;
- }
- else if (unformat (line_input, "via %U",
- unformat_ip6_address,
- &rpath.frp_addr.ip6))
- {
- rpath.frp_fib_index = 0;
- rpath.frp_weight = 1;
- rpath.frp_sw_if_index = ~0;
- rpath.frp_proto = DPO_PROTO_IP6;
- }
- else if (unformat (line_input, "via %U",
- unformat_ip4_address,
- &rpath.frp_addr.ip4))
- {
- rpath.frp_fib_index = 0;
- rpath.frp_weight = 1;
- rpath.frp_sw_if_index = ~0;
- rpath.frp_proto = DPO_PROTO_IP4;
- }
else if (unformat (line_input, "l2-only"))
l2_only = 1;
else if (unformat (line_input, "multicast"))
is_multicast = 1;
+ else if (unformat (line_input, "via %U",
+ unformat_fib_route_path,
+ &rpath, &payload_proto))
+ vec_add1(rpaths, rpath);
else
{
error = clib_error_return (0, "unknown input '%U'",
}
}
- vec_add1(rpaths, rpath);
-
if (is_del)
{
- if (!vnet_mpls_tunnel_path_remove(sw_if_index, rpaths))
+ if (NULL == rpaths)
+ {
+ vnet_mpls_tunnel_del(sw_if_index);
+ }
+ else if (!vnet_mpls_tunnel_path_remove(sw_if_index, rpaths))
{
vnet_mpls_tunnel_del(sw_if_index);
}
VLIB_CLI_COMMAND (create_mpls_tunnel_command, static) = {
.path = "mpls tunnel",
.short_help =
- "mpls tunnel via [addr] [interface] [out-labels]",
+ "mpls tunnel [multicast] [l2-only] via [next-hop-address] [next-hop-interface] [next-hop-table <value>] [weight <value>] [preference <value>] [udp-encap-id <value>] [ip4-lookup-in-table <value>] [ip6-lookup-in-table <value>] [mpls-lookup-in-table <value>] [resolve-via-host] [resolve-via-connected] [rx-ip4 <interface>] [out-labels <value value value>]",
.function = vnet_create_mpls_tunnel_command_fn,
};
else
{
if (pool_is_free_index(mpls_tunnel_pool, mti))
- return clib_error_return (0, "Not atunnel index %d", mti);
+ return clib_error_return (0, "Not a tunnel index %d", mti);
mt = pool_elt_at_index(mpls_tunnel_pool, mti);
static mpls_tunnel_t *
mpls_tunnel_from_fib_node (fib_node_t *node)
{
-#if (CLIB_DEBUG > 0)
ASSERT(FIB_NODE_TYPE_MPLS_TUNNEL == node->fn_type);
-#endif
return ((mpls_tunnel_t*) (((char*)node) -
STRUCT_OFFSET_OF(mpls_tunnel_t, mt_node)));
}
Code Review / vpp.git / blobdiff