2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 * @brief Common utility functions for LISP-GPE interfaces.
22 #include <vppinfra/error.h>
23 #include <vppinfra/hash.h>
24 #include <vnet/vnet.h>
25 #include <vnet/ip/ip.h>
26 #include <vnet/udp/udp_inlines.h>
27 #include <vnet/ethernet/ethernet.h>
28 #include <lisp/lisp-gpe/lisp_gpe.h>
29 #include <lisp/lisp-gpe/lisp_gpe_fwd_entry.h>
30 #include <lisp/lisp-gpe/lisp_gpe_tenant.h>
31 #include <lisp/lisp-gpe/lisp_gpe_adjacency.h>
32 #include <vnet/adj/adj.h>
33 #include <vnet/fib/fib_table.h>
34 #include <vnet/fib/ip4_fib.h>
35 #include <vnet/fib/ip6_fib.h>
36 #include <lisp/lisp-cp/lisp_cp_dpo.h>
39 * @brief The VLIB node arc/edge from the interface's TX node, to the L2
40 * load-balanceing node. Which is where all packets go
42 static uword l2_arc_to_lb;
44 #define foreach_lisp_gpe_tx_next \
45 _(DROP, "error-drop") \
46 _(IP4_LOOKUP, "ip4-lookup") \
47 _(IP6_LOOKUP, "ip6-lookup")
51 #define _(sym,str) LISP_GPE_TX_NEXT_##sym,
52 foreach_lisp_gpe_tx_next
60 } lisp_gpe_tx_trace_t;
63 format_lisp_gpe_tx_trace (u8 * s, va_list * args)
65 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
66 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
67 lisp_gpe_tx_trace_t *t = va_arg (*args, lisp_gpe_tx_trace_t *);
69 s = format (s, "LISP-GPE-TX: tunnel %d", t->tunnel_index);
73 #define is_v4_packet(_h) ((*(u8*) _h) & 0xF0) == 0x40
76 * @brief LISP-GPE interface TX (encap) function.
77 * @node lisp_gpe_interface_tx
79 * The LISP-GPE interface TX (encap) function.
81 * Looks up the associated tunnel based on the adjacency hit in the SD FIB
82 * and if the tunnel is multihomed it uses the flow hash to determine
83 * sub-tunnel, and rewrite string, to be used to encapsulate the packet.
85 * @param[in] vm vlib_main_t corresponding to the current thread.
86 * @param[in] node vlib_node_runtime_t data for this node.
87 * @param[in] frame vlib_frame_t whose contents should be dispatched.
89 * @return number of vectors in frame.
91 VLIB_NODE_FN (lisp_tunnel_output)
92 (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *from_frame)
94 u32 n_left_from, next_index, *from, *to_next;
96 from = vlib_frame_vector_args (from_frame);
97 n_left_from = from_frame->n_vectors;
99 next_index = node->cached_next_index;
101 while (n_left_from > 0)
105 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
107 while (n_left_from > 0 && n_left_to_next > 0)
109 u32 bi0, adj_index0, next0;
110 const ip_adjacency_t *adj0;
111 const dpo_id_t *dpo0;
121 b0 = vlib_get_buffer (vm, bi0);
122 b0->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED;
124 /* Follow the DPO on which the midchain is stacked */
125 adj_index0 = vnet_buffer (b0)->ip.adj_index[VLIB_TX];
126 adj0 = adj_get (adj_index0);
127 dpo0 = &adj0->sub_type.midchain.next_dpo;
128 next0 = dpo0->dpoi_next_node;
129 vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
131 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
133 lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0,
135 tr->tunnel_index = adj_index0;
137 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
138 n_left_to_next, bi0, next0);
141 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
144 return from_frame->n_vectors;
147 VLIB_REGISTER_NODE (lisp_tunnel_output) = {
148 .name = "lisp-tunnel-output",
149 .vector_size = sizeof (u32),
150 .format_trace = format_lisp_gpe_tx_trace,
151 .sibling_of = "tunnel-output",
155 format_lisp_gpe_name (u8 * s, va_list * args)
157 u32 dev_instance = va_arg (*args, u32);
158 return format (s, "lisp_gpe%d", dev_instance);
161 VNET_DEVICE_CLASS (lisp_gpe_device_class) = {
163 .format_device_name = format_lisp_gpe_name,
167 format_lisp_gpe_header_with_length (u8 * s, va_list * args)
169 lisp_gpe_header_t *h = va_arg (*args, lisp_gpe_header_t *);
170 u32 max_header_bytes = va_arg (*args, u32);
173 header_bytes = sizeof (h[0]);
174 if (max_header_bytes != 0 && header_bytes > max_header_bytes)
175 return format (s, "lisp-gpe header truncated");
177 s = format (s, "flags: ");
178 #define _(n,v) if (h->flags & v) s = format (s, "%s ", #n);
179 foreach_lisp_gpe_flag_bit;
182 s = format (s, "\n ver_res %d res %d next_protocol %d iid %d(%x)",
183 h->ver_res, h->res, h->next_protocol,
184 clib_net_to_host_u32 (h->iid << 8),
185 clib_net_to_host_u32 (h->iid << 8));
189 VNET_HW_INTERFACE_CLASS (lisp_gpe_hw_class) = {
191 .format_header = format_lisp_gpe_header_with_length,
192 .build_rewrite = lisp_gpe_build_rewrite,
193 .update_adjacency = lisp_gpe_update_adjacency,
200 } l2_lisp_gpe_tx_trace_t;
203 format_l2_lisp_gpe_tx_trace (u8 * s, va_list * args)
205 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
206 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
207 l2_lisp_gpe_tx_trace_t *t = va_arg (*args, l2_lisp_gpe_tx_trace_t *);
209 s = format (s, "L2-LISP-GPE-TX: load-balance %d", t->dpo_index);
214 * @brief LISP-GPE interface TX (encap) function for L2 overlays.
215 * @node l2_lisp_gpe_interface_tx
217 * The L2 LISP-GPE interface TX (encap) function.
219 * Uses bridge domain index, source and destination ethernet addresses to
220 * lookup tunnel. If the tunnel is multihomed a flow has is used to determine
221 * the sub-tunnel and therefore the rewrite string to be used to encapsulate
224 * @param[in] vm vlib_main_t corresponding to the current thread.
225 * @param[in] node vlib_node_runtime_t data for this node.
226 * @param[in] frame vlib_frame_t whose contents should be dispatched.
228 * @return number of vectors in frame.
231 l2_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node,
232 vlib_frame_t * from_frame)
234 u32 n_left_from, next_index, *from, *to_next;
235 lisp_gpe_main_t *lgm = &lisp_gpe_main;
236 u32 thread_index = vm->thread_index;
237 vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters;
239 from = vlib_frame_vector_args (from_frame);
240 n_left_from = from_frame->n_vectors;
242 next_index = node->cached_next_index;
244 while (n_left_from > 0)
248 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
250 while (n_left_from > 0 && n_left_to_next > 0)
254 ethernet_header_t *e0;
263 b0 = vlib_get_buffer (vm, bi0);
264 e0 = vlib_buffer_get_current (b0);
266 vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_MAC;
268 /* lookup dst + src mac */
269 lbi0 = lisp_l2_fib_lookup (lgm, vnet_buffer (b0)->l2.bd_index,
270 e0->src_address, e0->dst_address);
271 vnet_buffer (b0)->ip.adj_index[VLIB_TX] = lbi0;
273 vlib_increment_combined_counter (cm, thread_index, lbi0, 1,
274 vlib_buffer_length_in_chain (vm,
276 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
278 l2_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0,
280 tr->dpo_index = lbi0;
282 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
283 n_left_to_next, bi0, l2_arc_to_lb);
286 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
289 return from_frame->n_vectors;
293 format_l2_lisp_gpe_name (u8 * s, va_list * args)
295 u32 dev_instance = va_arg (*args, u32);
296 return format (s, "l2_lisp_gpe%d", dev_instance);
299 VNET_DEVICE_CLASS (l2_lisp_gpe_device_class,static) = {
300 .name = "L2_LISP_GPE",
301 .format_device_name = format_l2_lisp_gpe_name,
302 .format_tx_trace = format_l2_lisp_gpe_tx_trace,
303 .tx_function = l2_lisp_gpe_interface_tx,
309 } nsh_lisp_gpe_tx_trace_t;
312 format_nsh_lisp_gpe_tx_trace (u8 * s, va_list * args)
314 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
315 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
316 nsh_lisp_gpe_tx_trace_t *t = va_arg (*args, nsh_lisp_gpe_tx_trace_t *);
318 s = format (s, "NSH-GPE-TX: tunnel %d", t->dpo_index);
323 * @brief LISP-GPE interface TX for NSH overlays.
324 * @node nsh_lisp_gpe_interface_tx
326 * The NSH LISP-GPE interface TX function.
328 * @param[in] vm vlib_main_t corresponding to the current thread.
329 * @param[in] node vlib_node_runtime_t data for this node.
330 * @param[in] frame vlib_frame_t whose contents should be dispatched.
332 * @return number of vectors in frame.
335 nsh_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node,
336 vlib_frame_t * from_frame)
338 u32 n_left_from, next_index, *from, *to_next;
339 lisp_gpe_main_t *lgm = &lisp_gpe_main;
341 from = vlib_frame_vector_args (from_frame);
342 n_left_from = from_frame->n_vectors;
344 next_index = node->cached_next_index;
346 while (n_left_from > 0)
350 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
352 while (n_left_from > 0 && n_left_to_next > 0)
357 const dpo_id_t *dpo0;
366 b0 = vlib_get_buffer (vm, bi0);
367 nsh0 = vlib_buffer_get_current (b0);
369 vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_LCAF;
371 /* lookup SPI + SI (second word of the NSH header).
372 * NB: Load balancing was done by the control plane */
373 dpo0 = lisp_nsh_fib_lookup (lgm, nsh0[1]);
375 next0 = dpo0->dpoi_next_node;
376 vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
378 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
380 nsh_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0,
382 tr->dpo_index = dpo0->dpoi_index;
384 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
385 n_left_to_next, bi0, next0);
388 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
391 return from_frame->n_vectors;
395 format_nsh_lisp_gpe_name (u8 * s, va_list * args)
397 u32 dev_instance = va_arg (*args, u32);
398 return format (s, "nsh_lisp_gpe%d", dev_instance);
401 VNET_DEVICE_CLASS (nsh_lisp_gpe_device_class,static) = {
402 .name = "NSH_LISP_GPE",
403 .format_device_name = format_nsh_lisp_gpe_name,
404 .format_tx_trace = format_nsh_lisp_gpe_tx_trace,
405 .tx_function = nsh_lisp_gpe_interface_tx,
408 static vnet_hw_interface_t *
409 lisp_gpe_create_iface (lisp_gpe_main_t * lgm, u32 vni, u32 dp_table,
410 vnet_device_class_t * dev_class,
411 tunnel_lookup_t * tuns)
414 u32 hw_if_index = ~0;
416 vnet_hw_interface_t *hi;
417 vnet_main_t *vnm = lgm->vnet_main;
419 /* create hw lisp_gpeX iface if needed, otherwise reuse existing */
420 flen = vec_len (lgm->free_tunnel_hw_if_indices);
423 hw_if_index = lgm->free_tunnel_hw_if_indices[flen - 1];
424 vec_dec_len (lgm->free_tunnel_hw_if_indices, 1);
426 hi = vnet_get_hw_interface (vnm, hw_if_index);
428 /* rename interface */
429 new_name = format (0, "%U", dev_class->format_device_name, vni);
431 vec_add1 (new_name, 0);
432 vnet_rename_interface (vnm, hw_if_index, (char *) new_name);
435 /* clear old stats of freed interface before reuse */
436 vnet_interface_main_t *im = &vnm->interface_main;
437 vnet_interface_counter_lock (im);
438 vlib_zero_combined_counter (&im->combined_sw_if_counters
439 [VNET_INTERFACE_COUNTER_TX],
441 vlib_zero_combined_counter (&im->combined_sw_if_counters
442 [VNET_INTERFACE_COUNTER_RX],
444 vlib_zero_simple_counter (&im->sw_if_counters
445 [VNET_INTERFACE_COUNTER_DROP],
447 vnet_interface_counter_unlock (im);
451 hw_if_index = vnet_register_interface (vnm, dev_class->index, vni,
452 lisp_gpe_hw_class.index, 0);
453 hi = vnet_get_hw_interface (vnm, hw_if_index);
456 hash_set (tuns->hw_if_index_by_dp_table, dp_table, hw_if_index);
458 /* set tunnel termination: post decap, packets are tagged as having been
459 * originated by lisp-gpe interface */
460 hash_set (tuns->sw_if_index_by_vni, vni, hi->sw_if_index);
461 hash_set (tuns->vni_by_sw_if_index, hi->sw_if_index, vni);
467 lisp_gpe_remove_iface (lisp_gpe_main_t * lgm, u32 hi_index, u32 dp_table,
468 tunnel_lookup_t * tuns)
470 vnet_main_t *vnm = lgm->vnet_main;
471 vnet_hw_interface_t *hi;
474 hi = vnet_get_hw_interface (vnm, hi_index);
476 /* disable interface */
477 vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0 /* down */ );
478 vnet_hw_interface_set_flags (vnm, hi->hw_if_index, 0 /* down */ );
479 hash_unset (tuns->hw_if_index_by_dp_table, dp_table);
480 vec_add1 (lgm->free_tunnel_hw_if_indices, hi->hw_if_index);
482 /* clean tunnel termination and vni to sw_if_index binding */
483 vnip = hash_get (tuns->vni_by_sw_if_index, hi->sw_if_index);
486 clib_warning ("No vni associated to interface %d", hi->sw_if_index);
489 hash_unset (tuns->sw_if_index_by_vni, vnip[0]);
490 hash_unset (tuns->vni_by_sw_if_index, hi->sw_if_index);
494 lisp_gpe_iface_set_table (u32 sw_if_index, u32 table_id)
496 fib_node_index_t fib_index;
498 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id,
500 ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
501 ip4_sw_interface_enable_disable (sw_if_index, 1);
503 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, table_id,
505 ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
506 ip6_sw_interface_enable_disable (sw_if_index, 1);
510 lisp_gpe_tenant_del_default_routes (u32 table_id)
512 fib_protocol_t proto;
514 FOR_EACH_FIB_IP_PROTOCOL (proto)
516 fib_prefix_t prefix = {
521 fib_index = fib_table_find (prefix.fp_proto, table_id);
522 fib_table_entry_special_remove (fib_index, &prefix, FIB_SOURCE_LISP);
523 fib_table_unlock (fib_index, prefix.fp_proto, FIB_SOURCE_LISP);
528 lisp_gpe_tenant_add_default_routes (u32 table_id)
530 fib_protocol_t proto;
532 FOR_EACH_FIB_IP_PROTOCOL (proto)
534 fib_prefix_t prefix = {
540 * Add a deafult route that results in a control plane punt DPO
542 fib_index = fib_table_find_or_create_and_lock (prefix.fp_proto, table_id,
544 fib_table_entry_special_dpo_add (fib_index, &prefix, FIB_SOURCE_LISP,
545 FIB_ENTRY_FLAG_EXCLUSIVE,
546 lisp_cp_dpo_get (fib_proto_to_dpo
553 * @brief Add/del LISP-GPE L3 interface.
555 * Creates LISP-GPE interface, sets ingress arcs from lisp_gpeX_lookup,
556 * installs default routes that attract all traffic with no more specific
557 * routes to lgpe-ipx-lookup, set egress arcs to ipx-lookup, sets
558 * the interface in the right vrf and enables it.
560 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
561 * @param[in] a Parameters to create interface.
563 * @return number of vectors in frame.
566 lisp_gpe_add_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id,
567 u8 with_default_routes)
569 vnet_main_t *vnm = lgm->vnet_main;
570 tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces;
571 vnet_hw_interface_t *hi;
574 hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id);
578 clib_warning ("vrf %d already mapped to a vni", table_id);
582 si = hash_get (l3_ifaces->sw_if_index_by_vni, vni);
586 clib_warning ("Interface for vni %d already exists", vni);
589 /* create lisp iface and populate tunnel tables */
590 hi = lisp_gpe_create_iface (lgm, vni, table_id,
591 &lisp_gpe_device_class, l3_ifaces);
593 /* insert default routes that point to lisp-cp lookup */
594 lisp_gpe_iface_set_table (hi->sw_if_index, table_id);
595 if (with_default_routes)
596 lisp_gpe_tenant_add_default_routes (table_id);
598 /* enable interface */
599 vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
600 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
601 vnet_hw_interface_set_flags (vnm, hi->hw_if_index,
602 VNET_HW_INTERFACE_FLAG_LINK_UP);
604 return (hi->sw_if_index);
608 lisp_gpe_del_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id)
610 vnet_main_t *vnm = lgm->vnet_main;
611 tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces;
612 vnet_hw_interface_t *hi;
615 hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id);
619 clib_warning ("The interface for vrf %d doesn't exist", table_id);
623 hi = vnet_get_hw_interface (vnm, hip[0]);
625 lisp_gpe_remove_iface (lgm, hip[0], table_id, &lgm->l3_ifaces);
627 /* unset default routes */
628 ip4_sw_interface_enable_disable (hi->sw_if_index, 0);
629 ip6_sw_interface_enable_disable (hi->sw_if_index, 0);
630 lisp_gpe_tenant_del_default_routes (table_id);
634 * @brief Add/del LISP-GPE L2 interface.
636 * Creates LISP-GPE interface, sets it in L2 mode in the appropriate
637 * bridge domain, sets egress arcs and enables it.
639 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
640 * @param[in] a Parameters to create interface.
642 * @return number of vectors in frame.
645 lisp_gpe_add_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id)
647 vnet_main_t *vnm = lgm->vnet_main;
648 tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces;
649 vnet_hw_interface_t *hi;
653 if (bd_id > L2_BD_ID_MAX)
655 clib_warning ("bridge domain ID %d exceed 16M limit", bd_id);
659 bd_index = bd_find_or_add_bd_index (&bd_main, bd_id);
660 hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index);
664 clib_warning ("bridge domain %d already mapped to a vni", bd_id);
668 si = hash_get (l2_ifaces->sw_if_index_by_vni, vni);
671 clib_warning ("Interface for vni %d already exists", vni);
675 /* create lisp iface and populate tunnel tables */
676 hi = lisp_gpe_create_iface (lgm, vni, bd_index,
677 &l2_lisp_gpe_device_class, &lgm->l2_ifaces);
679 /* enable interface */
680 vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
681 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
682 vnet_hw_interface_set_flags (vnm, hi->hw_if_index,
683 VNET_HW_INTERFACE_FLAG_LINK_UP);
685 l2_arc_to_lb = vlib_node_add_named_next (vlib_get_main (),
689 /* we're ready. add iface to l2 bridge domain */
690 set_int_l2_mode (lgm->vlib_main, vnm, MODE_L2_BRIDGE, hi->sw_if_index,
691 bd_index, L2_BD_PORT_TYPE_NORMAL, 0, 0);
693 return (hi->sw_if_index);
697 * @brief Add/del LISP-GPE L2 interface.
699 * Creates LISP-GPE interface, sets it in L2 mode in the appropriate
700 * bridge domain, sets egress arcs and enables it.
702 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
703 * @param[in] a Parameters to create interface.
705 * @return number of vectors in frame.
708 lisp_gpe_del_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id)
710 tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces;
711 vnet_hw_interface_t *hi;
713 u32 bd_index = bd_find_index (&bd_main, bd_id);
714 ASSERT (bd_index != ~0);
715 uword *hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index);
719 clib_warning ("The interface for bridge domain %d doesn't exist",
724 /* Remove interface from bridge .. by enabling L3 mode */
725 hi = vnet_get_hw_interface (lgm->vnet_main, hip[0]);
726 set_int_l2_mode (lgm->vlib_main, lgm->vnet_main, MODE_L3, hi->sw_if_index,
727 0, L2_BD_PORT_TYPE_NORMAL, 0, 0);
728 lisp_gpe_remove_iface (lgm, hip[0], bd_index, &lgm->l2_ifaces);
732 * @brief Add LISP-GPE NSH interface.
734 * Creates LISP-GPE interface, sets it in L3 mode.
736 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
737 * @param[in] a Parameters to create interface.
739 * @return sw_if_index.
742 vnet_lisp_gpe_add_nsh_iface (lisp_gpe_main_t * lgm)
744 vnet_main_t *vnm = lgm->vnet_main;
745 tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces;
746 vnet_hw_interface_t *hi;
749 hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0);
753 clib_warning ("NSH interface 0 already exists");
757 si = hash_get (nsh_ifaces->sw_if_index_by_vni, 0);
760 clib_warning ("NSH interface already exists");
764 /* create lisp iface and populate tunnel tables */
765 hi = lisp_gpe_create_iface (lgm, 0, 0,
766 &nsh_lisp_gpe_device_class, &lgm->nsh_ifaces);
768 /* enable interface */
769 vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
770 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
771 vnet_hw_interface_set_flags (vnm, hi->hw_if_index,
772 VNET_HW_INTERFACE_FLAG_LINK_UP);
774 return (hi->sw_if_index);
778 * @brief Del LISP-GPE NSH interface.
782 vnet_lisp_gpe_del_nsh_iface (lisp_gpe_main_t * lgm)
784 tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces;
787 hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0);
791 clib_warning ("The NSH 0 interface doesn't exist");
794 lisp_gpe_remove_iface (lgm, hip[0], 0, &lgm->nsh_ifaces);
797 static clib_error_t *
798 lisp_gpe_add_del_iface_command_fn (vlib_main_t * vm, unformat_input_t * input,
799 vlib_cli_command_t * cmd)
801 unformat_input_t _line_input, *line_input = &_line_input;
803 u32 table_id, vni, bd_id;
804 u8 vni_is_set = 0, vrf_is_set = 0, bd_index_is_set = 0;
806 clib_error_t *error = NULL;
808 if (vnet_lisp_gpe_enable_disable_status () == 0)
810 return clib_error_return (0, "LISP is disabled");
813 /* Get a line of input. */
814 if (!unformat_user (input, unformat_line_input, line_input))
817 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
819 if (unformat (line_input, "add"))
821 else if (unformat (line_input, "del"))
823 else if (unformat (line_input, "vrf %d", &table_id))
827 else if (unformat (line_input, "vni %d", &vni))
831 else if (unformat (line_input, "bd %d", &bd_id))
835 else if (unformat (line_input, "nsh"))
841 error = clib_error_return (0, "parse error: '%U'",
842 format_unformat_error, line_input);
851 if (~0 == vnet_lisp_gpe_add_nsh_iface (&lisp_gpe_main))
853 error = clib_error_return (0, "NSH interface not created");
859 vnet_lisp_gpe_del_nsh_iface (&lisp_gpe_main);
864 if (vrf_is_set && bd_index_is_set)
866 error = clib_error_return
867 (0, "Cannot set both vrf and brdige domain index!");
873 error = clib_error_return (0, "vni must be set!");
877 if (!vrf_is_set && !bd_index_is_set)
880 clib_error_return (0, "vrf or bridge domain index must be set!");
888 if (~0 == lisp_gpe_tenant_l2_iface_add_or_lock (vni, bd_id))
890 error = clib_error_return (0, "L2 interface not created");
895 lisp_gpe_tenant_l2_iface_unlock (vni);
901 if (~0 == lisp_gpe_tenant_l3_iface_add_or_lock (vni, table_id, 1
902 /* with_default_route */
905 error = clib_error_return (0, "L3 interface not created");
910 lisp_gpe_tenant_l3_iface_unlock (vni);
914 unformat_free (line_input);
919 VLIB_CLI_COMMAND (add_del_lisp_gpe_iface_command, static) = {
921 .short_help = "gpe iface add/del vni <vni> vrf <vrf>",
922 .function = lisp_gpe_add_del_iface_command_fn,
926 * fd.io coding-style-patch-verification: ON
929 * eval: (c-set-style "gnu")