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);
162 VNET_DEVICE_CLASS (lisp_gpe_device_class) = {
164 .format_device_name = format_lisp_gpe_name,
169 format_lisp_gpe_header_with_length (u8 * s, va_list * args)
171 lisp_gpe_header_t *h = va_arg (*args, lisp_gpe_header_t *);
172 u32 max_header_bytes = va_arg (*args, u32);
175 header_bytes = sizeof (h[0]);
176 if (max_header_bytes != 0 && header_bytes > max_header_bytes)
177 return format (s, "lisp-gpe header truncated");
179 s = format (s, "flags: ");
180 #define _(n,v) if (h->flags & v) s = format (s, "%s ", #n);
181 foreach_lisp_gpe_flag_bit;
184 s = format (s, "\n ver_res %d res %d next_protocol %d iid %d(%x)",
185 h->ver_res, h->res, h->next_protocol,
186 clib_net_to_host_u32 (h->iid << 8),
187 clib_net_to_host_u32 (h->iid << 8));
192 VNET_HW_INTERFACE_CLASS (lisp_gpe_hw_class) = {
194 .format_header = format_lisp_gpe_header_with_length,
195 .build_rewrite = lisp_gpe_build_rewrite,
196 .update_adjacency = lisp_gpe_update_adjacency,
204 } l2_lisp_gpe_tx_trace_t;
207 format_l2_lisp_gpe_tx_trace (u8 * s, va_list * args)
209 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
210 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
211 l2_lisp_gpe_tx_trace_t *t = va_arg (*args, l2_lisp_gpe_tx_trace_t *);
213 s = format (s, "L2-LISP-GPE-TX: load-balance %d", t->dpo_index);
218 * @brief LISP-GPE interface TX (encap) function for L2 overlays.
219 * @node l2_lisp_gpe_interface_tx
221 * The L2 LISP-GPE interface TX (encap) function.
223 * Uses bridge domain index, source and destination ethernet addresses to
224 * lookup tunnel. If the tunnel is multihomed a flow has is used to determine
225 * the sub-tunnel and therefore the rewrite string to be used to encapsulate
228 * @param[in] vm vlib_main_t corresponding to the current thread.
229 * @param[in] node vlib_node_runtime_t data for this node.
230 * @param[in] frame vlib_frame_t whose contents should be dispatched.
232 * @return number of vectors in frame.
235 l2_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node,
236 vlib_frame_t * from_frame)
238 u32 n_left_from, next_index, *from, *to_next;
239 lisp_gpe_main_t *lgm = &lisp_gpe_main;
240 u32 thread_index = vm->thread_index;
241 vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters;
243 from = vlib_frame_vector_args (from_frame);
244 n_left_from = from_frame->n_vectors;
246 next_index = node->cached_next_index;
248 while (n_left_from > 0)
252 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
254 while (n_left_from > 0 && n_left_to_next > 0)
258 ethernet_header_t *e0;
267 b0 = vlib_get_buffer (vm, bi0);
268 e0 = vlib_buffer_get_current (b0);
270 vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_MAC;
272 /* lookup dst + src mac */
273 lbi0 = lisp_l2_fib_lookup (lgm, vnet_buffer (b0)->l2.bd_index,
274 e0->src_address, e0->dst_address);
275 vnet_buffer (b0)->ip.adj_index[VLIB_TX] = lbi0;
277 vlib_increment_combined_counter (cm, thread_index, lbi0, 1,
278 vlib_buffer_length_in_chain (vm,
280 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
282 l2_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0,
284 tr->dpo_index = lbi0;
286 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
287 n_left_to_next, bi0, l2_arc_to_lb);
290 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
293 return from_frame->n_vectors;
297 format_l2_lisp_gpe_name (u8 * s, va_list * args)
299 u32 dev_instance = va_arg (*args, u32);
300 return format (s, "l2_lisp_gpe%d", dev_instance);
304 VNET_DEVICE_CLASS (l2_lisp_gpe_device_class,static) = {
305 .name = "L2_LISP_GPE",
306 .format_device_name = format_l2_lisp_gpe_name,
307 .format_tx_trace = format_l2_lisp_gpe_tx_trace,
308 .tx_function = l2_lisp_gpe_interface_tx,
315 } nsh_lisp_gpe_tx_trace_t;
318 format_nsh_lisp_gpe_tx_trace (u8 * s, va_list * args)
320 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
321 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
322 nsh_lisp_gpe_tx_trace_t *t = va_arg (*args, nsh_lisp_gpe_tx_trace_t *);
324 s = format (s, "NSH-GPE-TX: tunnel %d", t->dpo_index);
329 * @brief LISP-GPE interface TX for NSH overlays.
330 * @node nsh_lisp_gpe_interface_tx
332 * The NSH LISP-GPE interface TX function.
334 * @param[in] vm vlib_main_t corresponding to the current thread.
335 * @param[in] node vlib_node_runtime_t data for this node.
336 * @param[in] frame vlib_frame_t whose contents should be dispatched.
338 * @return number of vectors in frame.
341 nsh_lisp_gpe_interface_tx (vlib_main_t * vm, vlib_node_runtime_t * node,
342 vlib_frame_t * from_frame)
344 u32 n_left_from, next_index, *from, *to_next;
345 lisp_gpe_main_t *lgm = &lisp_gpe_main;
347 from = vlib_frame_vector_args (from_frame);
348 n_left_from = from_frame->n_vectors;
350 next_index = node->cached_next_index;
352 while (n_left_from > 0)
356 vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
358 while (n_left_from > 0 && n_left_to_next > 0)
363 const dpo_id_t *dpo0;
372 b0 = vlib_get_buffer (vm, bi0);
373 nsh0 = vlib_buffer_get_current (b0);
375 vnet_buffer (b0)->lisp.overlay_afi = LISP_AFI_LCAF;
377 /* lookup SPI + SI (second word of the NSH header).
378 * NB: Load balancing was done by the control plane */
379 dpo0 = lisp_nsh_fib_lookup (lgm, nsh0[1]);
381 next0 = dpo0->dpoi_next_node;
382 vnet_buffer (b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
384 if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
386 nsh_lisp_gpe_tx_trace_t *tr = vlib_add_trace (vm, node, b0,
388 tr->dpo_index = dpo0->dpoi_index;
390 vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
391 n_left_to_next, bi0, next0);
394 vlib_put_next_frame (vm, node, next_index, n_left_to_next);
397 return from_frame->n_vectors;
401 format_nsh_lisp_gpe_name (u8 * s, va_list * args)
403 u32 dev_instance = va_arg (*args, u32);
404 return format (s, "nsh_lisp_gpe%d", dev_instance);
408 VNET_DEVICE_CLASS (nsh_lisp_gpe_device_class,static) = {
409 .name = "NSH_LISP_GPE",
410 .format_device_name = format_nsh_lisp_gpe_name,
411 .format_tx_trace = format_nsh_lisp_gpe_tx_trace,
412 .tx_function = nsh_lisp_gpe_interface_tx,
416 static vnet_hw_interface_t *
417 lisp_gpe_create_iface (lisp_gpe_main_t * lgm, u32 vni, u32 dp_table,
418 vnet_device_class_t * dev_class,
419 tunnel_lookup_t * tuns)
422 u32 hw_if_index = ~0;
424 vnet_hw_interface_t *hi;
425 vnet_main_t *vnm = lgm->vnet_main;
427 /* create hw lisp_gpeX iface if needed, otherwise reuse existing */
428 flen = vec_len (lgm->free_tunnel_hw_if_indices);
431 hw_if_index = lgm->free_tunnel_hw_if_indices[flen - 1];
432 _vec_len (lgm->free_tunnel_hw_if_indices) -= 1;
434 hi = vnet_get_hw_interface (vnm, hw_if_index);
436 /* rename interface */
437 new_name = format (0, "%U", dev_class->format_device_name, vni);
439 vec_add1 (new_name, 0);
440 vnet_rename_interface (vnm, hw_if_index, (char *) new_name);
443 /* clear old stats of freed interface before reuse */
444 vnet_interface_main_t *im = &vnm->interface_main;
445 vnet_interface_counter_lock (im);
446 vlib_zero_combined_counter (&im->combined_sw_if_counters
447 [VNET_INTERFACE_COUNTER_TX],
449 vlib_zero_combined_counter (&im->combined_sw_if_counters
450 [VNET_INTERFACE_COUNTER_RX],
452 vlib_zero_simple_counter (&im->sw_if_counters
453 [VNET_INTERFACE_COUNTER_DROP],
455 vnet_interface_counter_unlock (im);
459 hw_if_index = vnet_register_interface (vnm, dev_class->index, vni,
460 lisp_gpe_hw_class.index, 0);
461 hi = vnet_get_hw_interface (vnm, hw_if_index);
464 hash_set (tuns->hw_if_index_by_dp_table, dp_table, hw_if_index);
466 /* set tunnel termination: post decap, packets are tagged as having been
467 * originated by lisp-gpe interface */
468 hash_set (tuns->sw_if_index_by_vni, vni, hi->sw_if_index);
469 hash_set (tuns->vni_by_sw_if_index, hi->sw_if_index, vni);
475 lisp_gpe_remove_iface (lisp_gpe_main_t * lgm, u32 hi_index, u32 dp_table,
476 tunnel_lookup_t * tuns)
478 vnet_main_t *vnm = lgm->vnet_main;
479 vnet_hw_interface_t *hi;
482 hi = vnet_get_hw_interface (vnm, hi_index);
484 /* disable interface */
485 vnet_sw_interface_set_flags (vnm, hi->sw_if_index, 0 /* down */ );
486 vnet_hw_interface_set_flags (vnm, hi->hw_if_index, 0 /* down */ );
487 hash_unset (tuns->hw_if_index_by_dp_table, dp_table);
488 vec_add1 (lgm->free_tunnel_hw_if_indices, hi->hw_if_index);
490 /* clean tunnel termination and vni to sw_if_index binding */
491 vnip = hash_get (tuns->vni_by_sw_if_index, hi->sw_if_index);
494 clib_warning ("No vni associated to interface %d", hi->sw_if_index);
497 hash_unset (tuns->sw_if_index_by_vni, vnip[0]);
498 hash_unset (tuns->vni_by_sw_if_index, hi->sw_if_index);
502 lisp_gpe_iface_set_table (u32 sw_if_index, u32 table_id)
504 fib_node_index_t fib_index;
506 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4, table_id,
508 ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
509 ip4_sw_interface_enable_disable (sw_if_index, 1);
511 fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP6, table_id,
513 ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
514 ip6_sw_interface_enable_disable (sw_if_index, 1);
518 lisp_gpe_tenant_del_default_routes (u32 table_id)
520 fib_protocol_t proto;
522 FOR_EACH_FIB_IP_PROTOCOL (proto)
524 fib_prefix_t prefix = {
529 fib_index = fib_table_find (prefix.fp_proto, table_id);
530 fib_table_entry_special_remove (fib_index, &prefix, FIB_SOURCE_LISP);
531 fib_table_unlock (fib_index, prefix.fp_proto, FIB_SOURCE_LISP);
536 lisp_gpe_tenant_add_default_routes (u32 table_id)
538 fib_protocol_t proto;
540 FOR_EACH_FIB_IP_PROTOCOL (proto)
542 fib_prefix_t prefix = {
548 * Add a deafult route that results in a control plane punt DPO
550 fib_index = fib_table_find_or_create_and_lock (prefix.fp_proto, table_id,
552 fib_table_entry_special_dpo_add (fib_index, &prefix, FIB_SOURCE_LISP,
553 FIB_ENTRY_FLAG_EXCLUSIVE,
554 lisp_cp_dpo_get (fib_proto_to_dpo
561 * @brief Add/del LISP-GPE L3 interface.
563 * Creates LISP-GPE interface, sets ingress arcs from lisp_gpeX_lookup,
564 * installs default routes that attract all traffic with no more specific
565 * routes to lgpe-ipx-lookup, set egress arcs to ipx-lookup, sets
566 * the interface in the right vrf and enables it.
568 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
569 * @param[in] a Parameters to create interface.
571 * @return number of vectors in frame.
574 lisp_gpe_add_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id,
575 u8 with_default_routes)
577 vnet_main_t *vnm = lgm->vnet_main;
578 tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces;
579 vnet_hw_interface_t *hi;
582 hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id);
586 clib_warning ("vrf %d already mapped to a vni", table_id);
590 si = hash_get (l3_ifaces->sw_if_index_by_vni, vni);
594 clib_warning ("Interface for vni %d already exists", vni);
597 /* create lisp iface and populate tunnel tables */
598 hi = lisp_gpe_create_iface (lgm, vni, table_id,
599 &lisp_gpe_device_class, l3_ifaces);
601 /* insert default routes that point to lisp-cp lookup */
602 lisp_gpe_iface_set_table (hi->sw_if_index, table_id);
603 if (with_default_routes)
604 lisp_gpe_tenant_add_default_routes (table_id);
606 /* enable interface */
607 vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
608 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
609 vnet_hw_interface_set_flags (vnm, hi->hw_if_index,
610 VNET_HW_INTERFACE_FLAG_LINK_UP);
612 return (hi->sw_if_index);
616 lisp_gpe_del_l3_iface (lisp_gpe_main_t * lgm, u32 vni, u32 table_id)
618 vnet_main_t *vnm = lgm->vnet_main;
619 tunnel_lookup_t *l3_ifaces = &lgm->l3_ifaces;
620 vnet_hw_interface_t *hi;
623 hip = hash_get (l3_ifaces->hw_if_index_by_dp_table, table_id);
627 clib_warning ("The interface for vrf %d doesn't exist", table_id);
631 hi = vnet_get_hw_interface (vnm, hip[0]);
633 lisp_gpe_remove_iface (lgm, hip[0], table_id, &lgm->l3_ifaces);
635 /* unset default routes */
636 ip4_sw_interface_enable_disable (hi->sw_if_index, 0);
637 ip6_sw_interface_enable_disable (hi->sw_if_index, 0);
638 lisp_gpe_tenant_del_default_routes (table_id);
642 * @brief Add/del LISP-GPE L2 interface.
644 * Creates LISP-GPE interface, sets it in L2 mode in the appropriate
645 * bridge domain, sets egress arcs and enables it.
647 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
648 * @param[in] a Parameters to create interface.
650 * @return number of vectors in frame.
653 lisp_gpe_add_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id)
655 vnet_main_t *vnm = lgm->vnet_main;
656 tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces;
657 vnet_hw_interface_t *hi;
661 if (bd_id > L2_BD_ID_MAX)
663 clib_warning ("bridge domain ID %d exceed 16M limit", bd_id);
667 bd_index = bd_find_or_add_bd_index (&bd_main, bd_id);
668 hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index);
672 clib_warning ("bridge domain %d already mapped to a vni", bd_id);
676 si = hash_get (l2_ifaces->sw_if_index_by_vni, vni);
679 clib_warning ("Interface for vni %d already exists", vni);
683 /* create lisp iface and populate tunnel tables */
684 hi = lisp_gpe_create_iface (lgm, vni, bd_index,
685 &l2_lisp_gpe_device_class, &lgm->l2_ifaces);
687 /* enable interface */
688 vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
689 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
690 vnet_hw_interface_set_flags (vnm, hi->hw_if_index,
691 VNET_HW_INTERFACE_FLAG_LINK_UP);
693 l2_arc_to_lb = vlib_node_add_named_next (vlib_get_main (),
697 /* we're ready. add iface to l2 bridge domain */
698 set_int_l2_mode (lgm->vlib_main, vnm, MODE_L2_BRIDGE, hi->sw_if_index,
699 bd_index, L2_BD_PORT_TYPE_NORMAL, 0, 0);
701 return (hi->sw_if_index);
705 * @brief Add/del LISP-GPE L2 interface.
707 * Creates LISP-GPE interface, sets it in L2 mode in the appropriate
708 * bridge domain, sets egress arcs and enables it.
710 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
711 * @param[in] a Parameters to create interface.
713 * @return number of vectors in frame.
716 lisp_gpe_del_l2_iface (lisp_gpe_main_t * lgm, u32 vni, u32 bd_id)
718 tunnel_lookup_t *l2_ifaces = &lgm->l2_ifaces;
719 vnet_hw_interface_t *hi;
721 u32 bd_index = bd_find_index (&bd_main, bd_id);
722 ASSERT (bd_index != ~0);
723 uword *hip = hash_get (l2_ifaces->hw_if_index_by_dp_table, bd_index);
727 clib_warning ("The interface for bridge domain %d doesn't exist",
732 /* Remove interface from bridge .. by enabling L3 mode */
733 hi = vnet_get_hw_interface (lgm->vnet_main, hip[0]);
734 set_int_l2_mode (lgm->vlib_main, lgm->vnet_main, MODE_L3, hi->sw_if_index,
735 0, L2_BD_PORT_TYPE_NORMAL, 0, 0);
736 lisp_gpe_remove_iface (lgm, hip[0], bd_index, &lgm->l2_ifaces);
740 * @brief Add LISP-GPE NSH interface.
742 * Creates LISP-GPE interface, sets it in L3 mode.
744 * @param[in] lgm Reference to @ref lisp_gpe_main_t.
745 * @param[in] a Parameters to create interface.
747 * @return sw_if_index.
750 vnet_lisp_gpe_add_nsh_iface (lisp_gpe_main_t * lgm)
752 vnet_main_t *vnm = lgm->vnet_main;
753 tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces;
754 vnet_hw_interface_t *hi;
757 hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0);
761 clib_warning ("NSH interface 0 already exists");
765 si = hash_get (nsh_ifaces->sw_if_index_by_vni, 0);
768 clib_warning ("NSH interface already exists");
772 /* create lisp iface and populate tunnel tables */
773 hi = lisp_gpe_create_iface (lgm, 0, 0,
774 &nsh_lisp_gpe_device_class, &lgm->nsh_ifaces);
776 /* enable interface */
777 vnet_sw_interface_set_flags (vnm, hi->sw_if_index,
778 VNET_SW_INTERFACE_FLAG_ADMIN_UP);
779 vnet_hw_interface_set_flags (vnm, hi->hw_if_index,
780 VNET_HW_INTERFACE_FLAG_LINK_UP);
782 return (hi->sw_if_index);
786 * @brief Del LISP-GPE NSH interface.
790 vnet_lisp_gpe_del_nsh_iface (lisp_gpe_main_t * lgm)
792 tunnel_lookup_t *nsh_ifaces = &lgm->nsh_ifaces;
795 hip = hash_get (nsh_ifaces->hw_if_index_by_dp_table, 0);
799 clib_warning ("The NSH 0 interface doesn't exist");
802 lisp_gpe_remove_iface (lgm, hip[0], 0, &lgm->nsh_ifaces);
805 static clib_error_t *
806 lisp_gpe_add_del_iface_command_fn (vlib_main_t * vm, unformat_input_t * input,
807 vlib_cli_command_t * cmd)
809 unformat_input_t _line_input, *line_input = &_line_input;
811 u32 table_id, vni, bd_id;
812 u8 vni_is_set = 0, vrf_is_set = 0, bd_index_is_set = 0;
814 clib_error_t *error = NULL;
816 if (vnet_lisp_gpe_enable_disable_status () == 0)
818 return clib_error_return (0, "LISP is disabled");
821 /* Get a line of input. */
822 if (!unformat_user (input, unformat_line_input, line_input))
825 while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
827 if (unformat (line_input, "add"))
829 else if (unformat (line_input, "del"))
831 else if (unformat (line_input, "vrf %d", &table_id))
835 else if (unformat (line_input, "vni %d", &vni))
839 else if (unformat (line_input, "bd %d", &bd_id))
843 else if (unformat (line_input, "nsh"))
849 error = clib_error_return (0, "parse error: '%U'",
850 format_unformat_error, line_input);
859 if (~0 == vnet_lisp_gpe_add_nsh_iface (&lisp_gpe_main))
861 error = clib_error_return (0, "NSH interface not created");
867 vnet_lisp_gpe_del_nsh_iface (&lisp_gpe_main);
872 if (vrf_is_set && bd_index_is_set)
874 error = clib_error_return
875 (0, "Cannot set both vrf and brdige domain index!");
881 error = clib_error_return (0, "vni must be set!");
885 if (!vrf_is_set && !bd_index_is_set)
888 clib_error_return (0, "vrf or bridge domain index must be set!");
896 if (~0 == lisp_gpe_tenant_l2_iface_add_or_lock (vni, bd_id))
898 error = clib_error_return (0, "L2 interface not created");
903 lisp_gpe_tenant_l2_iface_unlock (vni);
909 if (~0 == lisp_gpe_tenant_l3_iface_add_or_lock (vni, table_id, 1
910 /* with_default_route */
913 error = clib_error_return (0, "L3 interface not created");
918 lisp_gpe_tenant_l3_iface_unlock (vni);
922 unformat_free (line_input);
928 VLIB_CLI_COMMAND (add_del_lisp_gpe_iface_command, static) = {
930 .short_help = "gpe iface add/del vni <vni> vrf <vrf>",
931 .function = lisp_gpe_add_del_iface_command_fn,
936 * fd.io coding-style-patch-verification: ON
939 * eval: (c-set-style "gnu")