2 * Copyright (c) 2020 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.
20 #include <sys/socket.h>
23 #include <linux-cp/lcp_interface.h>
24 #include <netlink/route/link/vlan.h>
26 #include <vnet/plugin/plugin.h>
27 #include <vnet/plugin/plugin.h>
29 #include <vnet/ip/ip_punt_drop.h>
30 #include <vnet/fib/fib_table.h>
31 #include <vnet/adj/adj_mcast.h>
32 #include <vnet/udp/udp.h>
33 #include <vnet/tcp/tcp.h>
34 #include <vnet/devices/tap/tap.h>
35 #include <vnet/devices/virtio/virtio.h>
36 #include <vnet/devices/netlink.h>
37 #include <vlibapi/api_helper_macros.h>
38 #include <vnet/ipsec/ipsec_punt.h>
40 static vlib_log_class_t lcp_itf_pair_logger;
45 lcp_itf_pair_t *lcp_itf_pair_pool;
48 lcp_itf_num_pairs (void)
50 return pool_elts (lcp_itf_pair_pool);
54 * DBs of interface-pair objects:
55 * - key'd by VIF (linux ID)
56 * - key'd by VPP's physical interface
57 * - number of shared uses of VPP's tap/host interface
59 static uword *lip_db_by_vif;
60 index_t *lip_db_by_phy;
63 #define LCP_ITF_PAIR_DBG(...) \
64 vlib_log_notice (lcp_itf_pair_logger, __VA_ARGS__);
66 #define LCP_ITF_PAIR_INFO(...) \
67 vlib_log_notice (lcp_itf_pair_logger, __VA_ARGS__);
70 format_lcp_itf_pair (u8 *s, va_list *args)
72 vnet_main_t *vnm = vnet_get_main ();
73 lcp_itf_pair_t *lip = va_arg (*args, lcp_itf_pair_t *);
74 vnet_sw_interface_t *swif_phy;
75 vnet_sw_interface_t *swif_host;
77 s = format (s, "itf-pair: [%d]", lip - lcp_itf_pair_pool);
79 swif_phy = vnet_get_sw_interface_or_null (vnm, lip->lip_phy_sw_if_index);
81 s = format (s, " <no-phy-if>");
83 s = format (s, " %U", format_vnet_sw_interface_name, vnm, swif_phy);
85 swif_host = vnet_get_sw_interface_or_null (vnm, lip->lip_host_sw_if_index);
87 s = format (s, " <no-host-if>");
89 s = format (s, " %U", format_vnet_sw_interface_name, vnm, swif_host);
91 s = format (s, " %v %d type %s", lip->lip_host_name, lip->lip_vif_index,
92 (lip->lip_host_type == LCP_ITF_HOST_TAP) ? "tap" : "tun");
94 if (lip->lip_namespace)
95 s = format (s, " netns %s", lip->lip_namespace);
101 lcp_itf_pair_walk_show_cb (index_t api, void *ctx)
106 lip = lcp_itf_pair_get (api);
110 vm = vlib_get_main ();
111 vlib_cli_output (vm, "%U\n", format_lcp_itf_pair, lip);
113 return WALK_CONTINUE;
117 lcp_itf_pair_show (u32 phy_sw_if_index)
123 vm = vlib_get_main ();
124 ns = lcp_get_default_ns ();
125 vlib_cli_output (vm, "lcp default netns '%s'\n",
126 ns ? (char *) ns : "<unset>");
128 if (phy_sw_if_index == ~0)
130 lcp_itf_pair_walk (lcp_itf_pair_walk_show_cb, 0);
134 api = lcp_itf_pair_find_by_phy (phy_sw_if_index);
135 if (api != INDEX_INVALID)
136 lcp_itf_pair_walk_show_cb (api, 0);
141 lcp_itf_pair_get (u32 index)
143 return pool_elt_at_index (lcp_itf_pair_pool, index);
147 lcp_itf_pair_find_by_vif (u32 vif_index)
151 p = hash_get (lip_db_by_vif, vif_index);
156 return INDEX_INVALID;
160 lcp_itf_pair_add_sub (u32 vif, u8 *host_if_name, u32 sub_sw_if_index,
161 u32 phy_sw_if_index, u8 *ns)
165 lip = lcp_itf_pair_get (lcp_itf_pair_find_by_phy (phy_sw_if_index));
167 return lcp_itf_pair_add (lip->lip_host_sw_if_index, sub_sw_if_index,
168 host_if_name, vif, lip->lip_host_type, ns);
171 const char *lcp_itf_l3_feat_names[N_LCP_ITF_HOST][N_AF] = {
172 [LCP_ITF_HOST_TAP] = {
173 [AF_IP4] = "linux-cp-xc-ip4",
174 [AF_IP6] = "linux-cp-xc-ip6",
176 [LCP_ITF_HOST_TUN] = {
177 [AF_IP4] = "linux-cp-xc-l3-ip4",
178 [AF_IP6] = "linux-cp-xc-l3-ip6",
182 const fib_route_path_flags_t lcp_itf_route_path_flags[N_LCP_ITF_HOST] = {
183 [LCP_ITF_HOST_TAP] = FIB_ROUTE_PATH_DVR,
184 [LCP_ITF_HOST_TUN] = FIB_ROUTE_PATH_FLAG_NONE,
188 lcp_itf_unset_adjs (lcp_itf_pair_t *lip)
190 adj_unlock (lip->lip_phy_adjs.adj_index[AF_IP4]);
191 adj_unlock (lip->lip_phy_adjs.adj_index[AF_IP6]);
195 lcp_itf_set_adjs (lcp_itf_pair_t *lip)
197 if (lip->lip_host_type == LCP_ITF_HOST_TUN)
199 lip->lip_phy_adjs.adj_index[AF_IP4] = adj_nbr_add_or_lock (
200 FIB_PROTOCOL_IP4, VNET_LINK_IP4, &zero_addr, lip->lip_phy_sw_if_index);
201 lip->lip_phy_adjs.adj_index[AF_IP6] = adj_nbr_add_or_lock (
202 FIB_PROTOCOL_IP6, VNET_LINK_IP6, &zero_addr, lip->lip_phy_sw_if_index);
206 lip->lip_phy_adjs.adj_index[AF_IP4] = adj_mcast_add_or_lock (
207 FIB_PROTOCOL_IP4, VNET_LINK_IP4, lip->lip_phy_sw_if_index);
208 lip->lip_phy_adjs.adj_index[AF_IP6] = adj_mcast_add_or_lock (
209 FIB_PROTOCOL_IP6, VNET_LINK_IP6, lip->lip_phy_sw_if_index);
214 adj = adj_get (lip->lip_phy_adjs.adj_index[AF_IP4]);
216 lip->lip_rewrite_len = adj->rewrite_header.data_bytes;
220 lcp_nl_drain_messages (void)
226 lcp_itf_pair_add (u32 host_sw_if_index, u32 phy_sw_if_index, u8 *host_name,
227 u32 host_index, lip_host_type_t host_type, u8 *ns)
232 lipi = lcp_itf_pair_find_by_phy (phy_sw_if_index);
234 LCP_ITF_PAIR_INFO ("add: host:%U phy:%U, host_if:%v vif:%d ns:%v",
235 format_vnet_sw_if_index_name, vnet_get_main (),
236 host_sw_if_index, format_vnet_sw_if_index_name,
237 vnet_get_main (), phy_sw_if_index, host_name, host_index,
240 if (lipi != INDEX_INVALID)
241 return VNET_API_ERROR_VALUE_EXIST;
244 * Drain netlink messages before adding the new pair.
245 * This avoids unnecessarily applying messages that were generated by
246 * the creation of the tap/tun interface. By processing them before we
247 * store the pair data, we will ensure that they are ignored.
249 lcp_nl_drain_messages ();
254 pool_get (lcp_itf_pair_pool, lip);
256 lipi = lip - lcp_itf_pair_pool;
258 vec_validate_init_empty (lip_db_by_phy, phy_sw_if_index, INDEX_INVALID);
259 vec_validate_init_empty (lip_db_by_host, host_sw_if_index, INDEX_INVALID);
260 lip_db_by_phy[phy_sw_if_index] = lipi;
261 lip_db_by_host[host_sw_if_index] = lipi;
262 hash_set (lip_db_by_vif, host_index, lipi);
264 lip->lip_host_sw_if_index = host_sw_if_index;
265 lip->lip_phy_sw_if_index = phy_sw_if_index;
266 lip->lip_host_name = vec_dup (host_name);
267 lip->lip_host_type = host_type;
268 lip->lip_vif_index = host_index;
269 lip->lip_namespace = vec_dup (ns);
270 lip->lip_create_ts = vlib_time_now (vlib_get_main ());
272 if (lip->lip_host_sw_if_index == ~0)
276 * First use of this host interface.
277 * Enable the x-connect feature on the host to send
278 * all packets to the phy.
280 ip_address_family_t af;
282 FOR_EACH_IP_ADDRESS_FAMILY (af)
283 ip_feature_enable_disable (af, N_SAFI, IP_FEATURE_INPUT,
284 lcp_itf_l3_feat_names[lip->lip_host_type][af],
285 lip->lip_host_sw_if_index, 1, NULL, 0);
288 * Configure passive punt to the host interface.
290 fib_route_path_t *rpaths = NULL, rpath = {
291 .frp_flags = lcp_itf_route_path_flags[lip->lip_host_type],
292 .frp_proto = DPO_PROTO_IP4,
293 .frp_sw_if_index = lip->lip_host_sw_if_index,
298 vec_add1 (rpaths, rpath);
300 ip4_punt_redirect_add_paths (lip->lip_phy_sw_if_index, rpaths);
302 rpaths[0].frp_proto = DPO_PROTO_IP6;
304 ip6_punt_redirect_add_paths (lip->lip_phy_sw_if_index, rpaths);
308 lcp_itf_set_adjs (lip);
310 /* enable ARP feature node for broadcast interfaces */
311 if (lip->lip_host_type != LCP_ITF_HOST_TUN)
313 vnet_feature_enable_disable ("arp", "linux-cp-arp-phy",
314 lip->lip_phy_sw_if_index, 1, NULL, 0);
315 vnet_feature_enable_disable ("arp", "linux-cp-arp-host",
316 lip->lip_host_sw_if_index, 1, NULL, 0);
320 vnet_feature_enable_disable ("ip4-punt", "linux-cp-punt-l3", 0, 1, NULL,
322 vnet_feature_enable_disable ("ip6-punt", "linux-cp-punt-l3", 0, 1, NULL,
329 static clib_error_t *
330 lcp_netlink_add_link_vlan (int parent, u32 vlan, const char *name)
332 struct rtnl_link *link;
336 sk = nl_socket_alloc ();
337 if ((err = nl_connect (sk, NETLINK_ROUTE)) < 0)
338 return clib_error_return (NULL, "Unable to connect socket: %d", err);
340 link = rtnl_link_vlan_alloc ();
342 rtnl_link_set_link (link, parent);
343 rtnl_link_set_name (link, name);
345 rtnl_link_vlan_set_id (link, vlan);
347 if ((err = rtnl_link_add (sk, link, NLM_F_CREATE)) < 0)
348 return clib_error_return (NULL, "Unable to add link %s: %d", name, err);
350 rtnl_link_put (link);
356 static clib_error_t *
357 lcp_netlink_del_link (const char *name)
359 struct rtnl_link *link;
363 sk = nl_socket_alloc ();
364 if ((err = nl_connect (sk, NETLINK_ROUTE)) < 0)
365 return clib_error_return (NULL, "Unable to connect socket: %d", err);
367 link = rtnl_link_alloc ();
368 rtnl_link_set_name (link, name);
370 if ((err = rtnl_link_delete (sk, link)) < 0)
371 return clib_error_return (NULL, "Unable to del link %s: %d", name, err);
373 rtnl_link_put (link);
380 lcp_itf_pair_del (u32 phy_sw_if_index)
382 ip_address_family_t af;
386 lipi = lcp_itf_pair_find_by_phy (phy_sw_if_index);
388 if (lipi == INDEX_INVALID)
389 return VNET_API_ERROR_INVALID_SW_IF_INDEX;
391 lip = lcp_itf_pair_get (lipi);
393 LCP_ITF_PAIR_INFO ("pair delete: {%U, %U, %s}", format_vnet_sw_if_index_name,
394 vnet_get_main (), lip->lip_phy_sw_if_index,
395 format_vnet_sw_if_index_name, vnet_get_main (),
396 lip->lip_host_sw_if_index, lip->lip_host_name);
398 FOR_EACH_IP_ADDRESS_FAMILY (af)
399 ip_feature_enable_disable (af, N_SAFI, IP_FEATURE_INPUT,
400 lcp_itf_l3_feat_names[lip->lip_host_type][af],
401 lip->lip_host_sw_if_index, 0, NULL, 0);
403 lcp_itf_unset_adjs (lip);
405 ip4_punt_redirect_del (lip->lip_phy_sw_if_index);
406 ip6_punt_redirect_del (lip->lip_phy_sw_if_index);
408 /* disable ARP feature node for broadcast interfaces */
409 if (lip->lip_host_type != LCP_ITF_HOST_TUN)
411 vnet_feature_enable_disable ("arp", "linux-cp-arp-phy",
412 lip->lip_phy_sw_if_index, 0, NULL, 0);
413 vnet_feature_enable_disable ("arp", "linux-cp-arp-host",
414 lip->lip_host_sw_if_index, 0, NULL, 0);
418 vnet_feature_enable_disable ("ip4-punt", "linux-cp-punt-l3", 0, 0, NULL,
420 vnet_feature_enable_disable ("ip6-punt", "linux-cp-punt-l3", 0, 0, NULL,
424 lip_db_by_phy[phy_sw_if_index] = INDEX_INVALID;
425 lip_db_by_phy[lip->lip_host_sw_if_index] = INDEX_INVALID;
427 vec_free (lip->lip_host_name);
428 vec_free (lip->lip_namespace);
429 pool_put (lcp_itf_pair_pool, lip);
435 lcp_itf_pair_delete_by_index (index_t lipi)
437 u32 host_sw_if_index;
441 lip = lcp_itf_pair_get (lipi);
443 host_name = vec_dup (lip->lip_host_name);
444 host_sw_if_index = lip->lip_host_sw_if_index;
446 lcp_itf_pair_del (lip->lip_phy_sw_if_index);
448 if (vnet_sw_interface_is_sub (vnet_get_main (), host_sw_if_index))
450 lcp_netlink_del_link ((const char *) host_name);
451 vnet_delete_sub_interface (host_sw_if_index);
454 tap_delete_if (vlib_get_main (), host_sw_if_index);
456 vec_free (host_name);
460 lcp_itf_pair_delete (u32 phy_sw_if_index)
464 lipi = lcp_itf_pair_find_by_phy (phy_sw_if_index);
466 if (lipi == INDEX_INVALID)
467 return VNET_API_ERROR_INVALID_SW_IF_INDEX;
469 lcp_itf_pair_delete_by_index (lipi);
475 lcp_itf_pair_walk (lcp_itf_pair_walk_cb_t cb, void *ctx)
479 pool_foreach_index (api, lcp_itf_pair_pool)
486 typedef struct lcp_itf_pair_names_t_
491 u32 lipn_phy_sw_if_index;
492 } lcp_itf_pair_names_t;
494 static lcp_itf_pair_names_t *lipn_names;
496 static clib_error_t *
497 lcp_itf_pair_config (vlib_main_t *vm, unformat_input_t *input)
503 host = phy = ns = default_ns = NULL;
505 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
507 vec_reset_length (host);
509 if (unformat (input, "pair %s %s %s", &phy, &host, &ns))
511 lcp_itf_pair_names_t *lipn;
513 if (vec_len (ns) > LCP_NS_LEN)
515 return clib_error_return (0,
516 "linux-cp IF namespace must"
517 " be less than %d characters",
521 vec_add2 (lipn_names, lipn, 1);
523 lipn->lipn_host_name = vec_dup (host);
524 lipn->lipn_phy_name = vec_dup (phy);
525 lipn->lipn_namespace = vec_dup (ns);
527 else if (unformat (input, "pair %v %v", &phy, &host))
529 lcp_itf_pair_names_t *lipn;
531 vec_add2 (lipn_names, lipn, 1);
533 lipn->lipn_host_name = vec_dup (host);
534 lipn->lipn_phy_name = vec_dup (phy);
535 lipn->lipn_namespace = 0;
537 else if (unformat (input, "default netns %v", &default_ns))
539 vec_add1 (default_ns, 0);
540 if (lcp_set_default_ns (default_ns) < 0)
542 return clib_error_return (0,
543 "linux-cp default namespace must"
544 " be less than %d characters",
548 else if (unformat (input, "interface-auto-create"))
549 lcp_set_auto_intf (1 /* is_auto */);
551 return clib_error_return (0, "interfaces not found");
556 vec_free (default_ns);
561 VLIB_EARLY_CONFIG_FUNCTION (lcp_itf_pair_config, "linux-cp");
564 * Returns 1 if the tap name is valid.
565 * Returns 0 if the tap name is invalid.
568 lcp_validate_if_name (u8 *name)
574 len = clib_strnlen (p, IFNAMSIZ);
601 lcp_itf_get_ns_fd (char *ns_name)
603 char ns_path[256] = "/proc/self/ns/net";
606 snprintf (ns_path, sizeof (ns_path) - 1, "/var/run/netns/%s", ns_name);
608 return open (ns_path, O_RDONLY);
612 lcp_itf_set_vif_link_state (u32 vif_index, u8 up, u8 *ns)
614 int curr_ns_fd, vif_ns_fd;
616 curr_ns_fd = vif_ns_fd = -1;
622 curr_ns_fd = open ("/proc/self/ns/net", O_RDONLY);
623 ns_path = format (0, "/var/run/netns/%s%c", (char *) ns, 0);
624 vif_ns_fd = open ((char *) ns_path, O_RDONLY);
626 setns (vif_ns_fd, CLONE_NEWNET);
629 vnet_netlink_set_link_state (vif_index, up);
634 if (curr_ns_fd != -1)
636 setns (curr_ns_fd, CLONE_NEWNET);
642 lcp_itf_pair_create (u32 phy_sw_if_index, u8 *host_if_name,
643 lip_host_type_t host_if_type, u8 *ns,
644 u32 *host_sw_if_indexp)
648 u32 vif_index = 0, host_sw_if_index;
649 const vnet_sw_interface_t *sw;
650 const vnet_hw_interface_t *hw;
652 if (!vnet_sw_if_index_is_api_valid (phy_sw_if_index))
653 return VNET_API_ERROR_INVALID_SW_IF_INDEX;
655 if (!lcp_validate_if_name (host_if_name))
656 return VNET_API_ERROR_INVALID_ARGUMENT;
658 vnm = vnet_get_main ();
659 sw = vnet_get_sw_interface (vnm, phy_sw_if_index);
660 hw = vnet_get_sup_hw_interface (vnm, phy_sw_if_index);
663 * Use interface-specific netns if supplied.
664 * Otherwise, use default netns if defined.
665 * Otherwise ignore a netns and use the OS default.
667 if (ns == 0 || ns[0] == 0)
668 ns = lcp_get_default_ns ();
670 /* sub interfaces do not need a tap created */
671 if (vnet_sw_interface_is_sub (vnm, phy_sw_if_index))
673 const lcp_itf_pair_t *lip;
674 int orig_ns_fd, ns_fd;
679 * Find the parent tap by finding the pair from the parent phy
681 lip = lcp_itf_pair_get (lcp_itf_pair_find_by_phy (sw->sup_sw_if_index));
682 vlan = sw->sub.eth.outer_vlan_id;
685 * see if the requested host interface has already been created
687 orig_ns_fd = ns_fd = -1;
690 if (ns && ns[0] != 0)
692 orig_ns_fd = lcp_itf_get_ns_fd (NULL);
693 ns_fd = lcp_itf_get_ns_fd ((char *) ns);
694 if (orig_ns_fd == -1 || ns_fd == -1)
697 setns (ns_fd, CLONE_NEWNET);
700 vif_index = if_nametoindex ((const char *) host_if_name);
705 * no existing host interface, create it now
707 err = lcp_netlink_add_link_vlan (lip->lip_vif_index, vlan,
708 (const char *) host_if_name);
710 if (!err && -1 != ns_fd)
711 err = vnet_netlink_set_link_netns (vif_index, ns_fd, NULL);
714 vif_index = if_nametoindex ((char *) host_if_name);
718 * create a sub-interface on the tap
720 if (!err && vnet_create_sub_interface (lip->lip_host_sw_if_index,
721 sw->sub.id, sw->sub.eth.raw_flags,
722 sw->sub.eth.inner_vlan_id, vlan,
724 LCP_ITF_PAIR_INFO ("failed create vlan: %d on %U", vlan,
725 format_vnet_sw_if_index_name, vnet_get_main (),
726 lip->lip_host_sw_if_index);
729 if (orig_ns_fd != -1)
731 setns (orig_ns_fd, CLONE_NEWNET);
738 return VNET_API_ERROR_INVALID_ARGUMENT;
742 tap_create_if_args_t args = {
743 .num_rx_queues = clib_max (1, vlib_num_workers ()),
744 .id = hw->hw_if_index,
748 .host_if_name = host_if_name,
751 ethernet_interface_t *ei;
753 if (host_if_type == LCP_ITF_HOST_TUN)
754 args.tap_flags |= TAP_FLAG_TUN;
757 ei = pool_elt_at_index (ethernet_main.interfaces, hw->hw_instance);
758 mac_address_copy (&args.host_mac_addr, &ei->address.mac);
761 if (sw->mtu[VNET_MTU_L3])
763 args.host_mtu_set = 1;
764 args.host_mtu_size = sw->mtu[VNET_MTU_L3];
767 if (ns && ns[0] != 0)
768 args.host_namespace = ns;
770 vm = vlib_get_main ();
771 tap_create_if (vm, &args);
779 * get the hw and ethernet of the tap
781 hw = vnet_get_sup_hw_interface (vnm, args.sw_if_index);
784 * Set the interface down on the host side.
785 * This controls whether the host can RX/TX.
787 virtio_main_t *mm = &virtio_main;
788 virtio_if_t *vif = pool_elt_at_index (mm->interfaces, hw->dev_instance);
790 lcp_itf_set_vif_link_state (vif->ifindex, 0 /* down */,
791 args.host_namespace);
794 * Leave the TAP permanently up on the VPP side.
795 * This TAP will be shared by many sub-interface.
796 * Therefore we can't use it to manage admin state.
797 * force the tap in promiscuous mode.
799 if (host_if_type == LCP_ITF_HOST_TAP)
801 ei = pool_elt_at_index (ethernet_main.interfaces, hw->hw_instance);
802 ei->flags |= ETHERNET_INTERFACE_FLAG_STATUS_L3;
805 vif_index = vif->ifindex;
806 host_sw_if_index = args.sw_if_index;
811 LCP_ITF_PAIR_INFO ("failed pair add (no vif index): {%U, %U, %s}",
812 format_vnet_sw_if_index_name, vnet_get_main (),
813 phy_sw_if_index, format_vnet_sw_if_index_name,
814 vnet_get_main (), host_sw_if_index, host_if_name);
818 vnet_sw_interface_admin_up (vnm, host_sw_if_index);
819 lcp_itf_pair_add (host_sw_if_index, phy_sw_if_index, host_if_name, vif_index,
822 LCP_ITF_PAIR_INFO ("pair create: {%U, %U, %s}", format_vnet_sw_if_index_name,
823 vnet_get_main (), phy_sw_if_index,
824 format_vnet_sw_if_index_name, vnet_get_main (),
825 host_sw_if_index, host_if_name);
827 if (host_sw_if_indexp)
828 *host_sw_if_indexp = host_sw_if_index;
834 lcp_itf_pair_walk_mark (index_t lipi, void *ctx)
838 lip = lcp_itf_pair_get (lipi);
840 lip->lip_flags |= LIP_FLAG_STALE;
842 return (WALK_CONTINUE);
846 lcp_itf_pair_replace_begin (void)
848 lcp_itf_pair_walk (lcp_itf_pair_walk_mark, NULL);
853 typedef struct lcp_itf_pair_sweep_ctx_t_
856 } lcp_itf_pair_sweep_ctx_t;
859 lcp_itf_pair_walk_sweep (index_t lipi, void *arg)
861 lcp_itf_pair_sweep_ctx_t *ctx = arg;
864 lip = lcp_itf_pair_get (lipi);
866 if (lip->lip_flags & LIP_FLAG_STALE)
867 vec_add1 (ctx->indicies, lipi);
869 return (WALK_CONTINUE);
873 lcp_itf_pair_replace_end (void)
875 lcp_itf_pair_sweep_ctx_t ctx = {
880 lcp_itf_pair_walk (lcp_itf_pair_walk_sweep, &ctx);
882 vec_foreach (lipi, ctx.indicies)
883 lcp_itf_pair_delete_by_index (*lipi);
885 vec_free (ctx.indicies);
890 lcp_itf_pair_process (vlib_main_t *vm, vlib_node_runtime_t *rt,
893 uword *event_data = 0;
898 vlib_process_wait_for_event (vm);
900 vlib_process_get_events (vm, &event_data);
902 vec_foreach (lipn_index, event_data)
904 lcp_itf_pair_names_t *lipn;
906 lipn = &lipn_names[*lipn_index];
907 lcp_itf_pair_create (lipn->lipn_phy_sw_if_index,
908 lipn->lipn_host_name, LCP_ITF_HOST_TAP,
909 lipn->lipn_namespace, NULL);
912 vec_reset_length (event_data);
918 VLIB_REGISTER_NODE (lcp_itf_pair_process_node, static) = {
919 .function = lcp_itf_pair_process,
920 .name = "linux-cp-itf-process",
921 .type = VLIB_NODE_TYPE_PROCESS,
924 static clib_error_t *
925 lcp_itf_phy_add (vnet_main_t *vnm, u32 sw_if_index, u32 is_create)
927 lcp_itf_pair_names_t *lipn;
928 vlib_main_t *vm = vlib_get_main ();
929 vnet_hw_interface_t *hw;
931 if (!is_create || vnet_sw_interface_is_sub (vnm, sw_if_index))
934 hw = vnet_get_sup_hw_interface (vnm, sw_if_index);
936 vec_foreach (lipn, lipn_names)
938 if (!vec_cmp (hw->name, lipn->lipn_phy_name))
940 lipn->lipn_phy_sw_if_index = sw_if_index;
942 vlib_process_signal_event (vm, lcp_itf_pair_process_node.index, 0,
951 VNET_SW_INTERFACE_ADD_DEL_FUNCTION (lcp_itf_phy_add);
953 static clib_error_t *
954 lcp_itf_pair_link_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
956 vnet_hw_interface_t *hi;
957 vnet_sw_interface_t *si;
961 hi = vnet_get_hw_interface_or_null (vnm, hw_if_index);
965 lipi = lcp_itf_pair_find_by_phy (hi->sw_if_index);
966 if (lipi == INDEX_INVALID)
969 lip = lcp_itf_pair_get (lipi);
970 si = vnet_get_sw_interface_or_null (vnm, lip->lip_host_sw_if_index);
974 if (!lcp_main.test_mode)
976 tap_set_carrier (si->hw_if_index,
977 (flags & VNET_HW_INTERFACE_FLAG_LINK_UP));
979 if (flags & VNET_HW_INTERFACE_FLAG_LINK_UP)
981 tap_set_speed (si->hw_if_index, hi->link_speed / 1000);
988 VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION (lcp_itf_pair_link_up_down);
990 static clib_error_t *
991 lcp_itf_pair_init (vlib_main_t *vm)
993 vlib_punt_hdl_t punt_hdl = vlib_punt_client_register ("linux-cp");
996 vlib_punt_register (punt_hdl, ipsec_punt_reason[IPSEC_PUNT_IP4_SPI_UDP_0],
999 /* punt all unknown ports */
1000 udp_punt_unknown (vm, 0, 1);
1001 udp_punt_unknown (vm, 1, 1);
1002 tcp_punt_unknown (vm, 0, 1);
1003 tcp_punt_unknown (vm, 1, 1);
1005 lcp_itf_pair_logger = vlib_log_register_class ("linux-cp", "itf");
1010 VLIB_INIT_FUNCTION (lcp_itf_pair_init) = {
1011 .runs_after = VLIB_INITS ("vnet_interface_init", "tcp_init", "udp_init"),
1015 * fd.io coding-style-patch-verification: ON
1018 * eval: (c-set-style "gnu")