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718e3744 | 1 | /* |
2 | * Interface looking up by netlink. | |
3 | * Copyright (C) 1998 Kunihiro Ishiguro | |
4 | * | |
5 | * This file is part of GNU Zebra. | |
6 | * | |
7 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2, or (at your option) any | |
10 | * later version. | |
11 | * | |
12 | * GNU Zebra is distributed in the hope that it will be useful, but | |
13 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | * General Public License for more details. | |
16 | * | |
896014f4 DL |
17 | * You should have received a copy of the GNU General Public License along |
18 | * with this program; see the file COPYING; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
718e3744 | 20 | */ |
21 | ||
22 | #include <zebra.h> | |
6675513d | 23 | |
ddfeb486 DL |
24 | #ifdef GNU_LINUX |
25 | ||
6675513d | 26 | /* The following definition is to workaround an issue in the Linux kernel |
27 | * header files with redefinition of 'struct in6_addr' in both | |
28 | * netinet/in.h and linux/in6.h. | |
29 | * Reference - https://sourceware.org/ml/libc-alpha/2013-01/msg00599.html | |
30 | */ | |
31 | #define _LINUX_IN6_H | |
32 | ||
ba85366a | 33 | #include <netinet/if_ether.h> |
6675513d | 34 | #include <linux/if_bridge.h> |
ba777396 | 35 | #include <linux/if_link.h> |
1fdc9eae | 36 | #include <net/if_arp.h> |
535fe877 DS |
37 | #include <linux/sockios.h> |
38 | #include <linux/ethtool.h> | |
1fdc9eae | 39 | |
40 | #include "linklist.h" | |
41 | #include "if.h" | |
42 | #include "log.h" | |
43 | #include "prefix.h" | |
44 | #include "connected.h" | |
45 | #include "table.h" | |
46 | #include "memory.h" | |
47 | #include "zebra_memory.h" | |
48 | #include "rib.h" | |
49 | #include "thread.h" | |
50 | #include "privs.h" | |
51 | #include "nexthop.h" | |
52 | #include "vrf.h" | |
7922fc65 | 53 | #include "vrf_int.h" |
1fdc9eae | 54 | #include "mpls.h" |
174482ef | 55 | #include "lib_errors.h" |
718e3744 | 56 | |
5e6a74d8 | 57 | #include "vty.h" |
7dbeea9d | 58 | #include "zebra/zserv.h" |
1fdc9eae | 59 | #include "zebra/zebra_ns.h" |
60 | #include "zebra/zebra_vrf.h" | |
61 | #include "zebra/rt.h" | |
62 | #include "zebra/redistribute.h" | |
63 | #include "zebra/interface.h" | |
64 | #include "zebra/debug.h" | |
65 | #include "zebra/rtadv.h" | |
66 | #include "zebra/zebra_ptm.h" | |
67 | #include "zebra/zebra_mpls.h" | |
68 | #include "zebra/kernel_netlink.h" | |
69 | #include "zebra/if_netlink.h" | |
70 | ||
0268f30e | 71 | extern struct zebra_privs_t zserv_privs; |
1fdc9eae | 72 | |
73 | /* Note: on netlink systems, there should be a 1-to-1 mapping between interface | |
74 | names and ifindex values. */ | |
d62a17ae | 75 | static void set_ifindex(struct interface *ifp, ifindex_t ifi_index, |
76 | struct zebra_ns *zns) | |
1fdc9eae | 77 | { |
d62a17ae | 78 | struct interface *oifp; |
79 | ||
80 | if (((oifp = if_lookup_by_index_per_ns(zns, ifi_index)) != NULL) | |
81 | && (oifp != ifp)) { | |
82 | if (ifi_index == IFINDEX_INTERNAL) | |
af4c2728 | 83 | flog_err( |
4d43f68a DS |
84 | LIB_ERR_INTERFACE, |
85 | "Netlink is setting interface %s ifindex to reserved internal value %u", | |
d62a17ae | 86 | ifp->name, ifi_index); |
87 | else { | |
88 | if (IS_ZEBRA_DEBUG_KERNEL) | |
89 | zlog_debug( | |
90 | "interface index %d was renamed from %s to %s", | |
91 | ifi_index, oifp->name, ifp->name); | |
92 | if (if_is_up(oifp)) | |
af4c2728 | 93 | flog_err( |
4d43f68a DS |
94 | LIB_ERR_INTERFACE, |
95 | "interface rename detected on up interface: index %d was renamed from %s to %s, results are uncertain!", | |
d62a17ae | 96 | ifi_index, oifp->name, ifp->name); |
97 | if_delete_update(oifp); | |
98 | } | |
99 | } | |
ff880b78 | 100 | if_set_index(ifp, ifi_index); |
1fdc9eae | 101 | } |
102 | ||
103 | /* Utility function to parse hardware link-layer address and update ifp */ | |
d62a17ae | 104 | static void netlink_interface_update_hw_addr(struct rtattr **tb, |
105 | struct interface *ifp) | |
1fdc9eae | 106 | { |
d62a17ae | 107 | int i; |
108 | ||
109 | if (tb[IFLA_ADDRESS]) { | |
110 | int hw_addr_len; | |
111 | ||
112 | hw_addr_len = RTA_PAYLOAD(tb[IFLA_ADDRESS]); | |
113 | ||
114 | if (hw_addr_len > INTERFACE_HWADDR_MAX) | |
115 | zlog_warn("Hardware address is too large: %d", | |
116 | hw_addr_len); | |
117 | else { | |
118 | ifp->hw_addr_len = hw_addr_len; | |
119 | memcpy(ifp->hw_addr, RTA_DATA(tb[IFLA_ADDRESS]), | |
120 | hw_addr_len); | |
121 | ||
122 | for (i = 0; i < hw_addr_len; i++) | |
123 | if (ifp->hw_addr[i] != 0) | |
124 | break; | |
125 | ||
126 | if (i == hw_addr_len) | |
127 | ifp->hw_addr_len = 0; | |
128 | else | |
129 | ifp->hw_addr_len = hw_addr_len; | |
130 | } | |
131 | } | |
1fdc9eae | 132 | } |
133 | ||
d62a17ae | 134 | static enum zebra_link_type netlink_to_zebra_link_type(unsigned int hwt) |
1fdc9eae | 135 | { |
d62a17ae | 136 | switch (hwt) { |
137 | case ARPHRD_ETHER: | |
138 | return ZEBRA_LLT_ETHER; | |
139 | case ARPHRD_EETHER: | |
140 | return ZEBRA_LLT_EETHER; | |
141 | case ARPHRD_AX25: | |
142 | return ZEBRA_LLT_AX25; | |
143 | case ARPHRD_PRONET: | |
144 | return ZEBRA_LLT_PRONET; | |
145 | case ARPHRD_IEEE802: | |
146 | return ZEBRA_LLT_IEEE802; | |
147 | case ARPHRD_ARCNET: | |
148 | return ZEBRA_LLT_ARCNET; | |
149 | case ARPHRD_APPLETLK: | |
150 | return ZEBRA_LLT_APPLETLK; | |
151 | case ARPHRD_DLCI: | |
152 | return ZEBRA_LLT_DLCI; | |
153 | case ARPHRD_ATM: | |
154 | return ZEBRA_LLT_ATM; | |
155 | case ARPHRD_METRICOM: | |
156 | return ZEBRA_LLT_METRICOM; | |
157 | case ARPHRD_IEEE1394: | |
158 | return ZEBRA_LLT_IEEE1394; | |
159 | case ARPHRD_EUI64: | |
160 | return ZEBRA_LLT_EUI64; | |
161 | case ARPHRD_INFINIBAND: | |
162 | return ZEBRA_LLT_INFINIBAND; | |
163 | case ARPHRD_SLIP: | |
164 | return ZEBRA_LLT_SLIP; | |
165 | case ARPHRD_CSLIP: | |
166 | return ZEBRA_LLT_CSLIP; | |
167 | case ARPHRD_SLIP6: | |
168 | return ZEBRA_LLT_SLIP6; | |
169 | case ARPHRD_CSLIP6: | |
170 | return ZEBRA_LLT_CSLIP6; | |
171 | case ARPHRD_RSRVD: | |
172 | return ZEBRA_LLT_RSRVD; | |
173 | case ARPHRD_ADAPT: | |
174 | return ZEBRA_LLT_ADAPT; | |
175 | case ARPHRD_ROSE: | |
176 | return ZEBRA_LLT_ROSE; | |
177 | case ARPHRD_X25: | |
178 | return ZEBRA_LLT_X25; | |
179 | case ARPHRD_PPP: | |
180 | return ZEBRA_LLT_PPP; | |
181 | case ARPHRD_CISCO: | |
182 | return ZEBRA_LLT_CHDLC; | |
183 | case ARPHRD_LAPB: | |
184 | return ZEBRA_LLT_LAPB; | |
185 | case ARPHRD_RAWHDLC: | |
186 | return ZEBRA_LLT_RAWHDLC; | |
187 | case ARPHRD_TUNNEL: | |
188 | return ZEBRA_LLT_IPIP; | |
189 | case ARPHRD_TUNNEL6: | |
190 | return ZEBRA_LLT_IPIP6; | |
191 | case ARPHRD_FRAD: | |
192 | return ZEBRA_LLT_FRAD; | |
193 | case ARPHRD_SKIP: | |
194 | return ZEBRA_LLT_SKIP; | |
195 | case ARPHRD_LOOPBACK: | |
196 | return ZEBRA_LLT_LOOPBACK; | |
197 | case ARPHRD_LOCALTLK: | |
198 | return ZEBRA_LLT_LOCALTLK; | |
199 | case ARPHRD_FDDI: | |
200 | return ZEBRA_LLT_FDDI; | |
201 | case ARPHRD_SIT: | |
202 | return ZEBRA_LLT_SIT; | |
203 | case ARPHRD_IPDDP: | |
204 | return ZEBRA_LLT_IPDDP; | |
205 | case ARPHRD_IPGRE: | |
206 | return ZEBRA_LLT_IPGRE; | |
207 | case ARPHRD_PIMREG: | |
208 | return ZEBRA_LLT_PIMREG; | |
209 | case ARPHRD_HIPPI: | |
210 | return ZEBRA_LLT_HIPPI; | |
211 | case ARPHRD_ECONET: | |
212 | return ZEBRA_LLT_ECONET; | |
213 | case ARPHRD_IRDA: | |
214 | return ZEBRA_LLT_IRDA; | |
215 | case ARPHRD_FCPP: | |
216 | return ZEBRA_LLT_FCPP; | |
217 | case ARPHRD_FCAL: | |
218 | return ZEBRA_LLT_FCAL; | |
219 | case ARPHRD_FCPL: | |
220 | return ZEBRA_LLT_FCPL; | |
221 | case ARPHRD_FCFABRIC: | |
222 | return ZEBRA_LLT_FCFABRIC; | |
223 | case ARPHRD_IEEE802_TR: | |
224 | return ZEBRA_LLT_IEEE802_TR; | |
225 | case ARPHRD_IEEE80211: | |
226 | return ZEBRA_LLT_IEEE80211; | |
4268e09e | 227 | #ifdef ARPHRD_IEEE802154 |
d62a17ae | 228 | case ARPHRD_IEEE802154: |
229 | return ZEBRA_LLT_IEEE802154; | |
4268e09e | 230 | #endif |
1fdc9eae | 231 | #ifdef ARPHRD_IP6GRE |
d62a17ae | 232 | case ARPHRD_IP6GRE: |
233 | return ZEBRA_LLT_IP6GRE; | |
1fdc9eae | 234 | #endif |
235 | #ifdef ARPHRD_IEEE802154_PHY | |
d62a17ae | 236 | case ARPHRD_IEEE802154_PHY: |
237 | return ZEBRA_LLT_IEEE802154_PHY; | |
1fdc9eae | 238 | #endif |
239 | ||
d62a17ae | 240 | default: |
241 | return ZEBRA_LLT_UNKNOWN; | |
242 | } | |
1fdc9eae | 243 | } |
244 | ||
d62a17ae | 245 | static void netlink_determine_zebra_iftype(char *kind, zebra_iftype_t *zif_type) |
6675513d | 246 | { |
d62a17ae | 247 | *zif_type = ZEBRA_IF_OTHER; |
248 | ||
249 | if (!kind) | |
250 | return; | |
251 | ||
252 | if (strcmp(kind, "vrf") == 0) | |
253 | *zif_type = ZEBRA_IF_VRF; | |
254 | else if (strcmp(kind, "bridge") == 0) | |
255 | *zif_type = ZEBRA_IF_BRIDGE; | |
256 | else if (strcmp(kind, "vlan") == 0) | |
257 | *zif_type = ZEBRA_IF_VLAN; | |
258 | else if (strcmp(kind, "vxlan") == 0) | |
259 | *zif_type = ZEBRA_IF_VXLAN; | |
1a98c087 MK |
260 | else if (strcmp(kind, "macvlan") == 0) |
261 | *zif_type = ZEBRA_IF_MACVLAN; | |
6675513d | 262 | } |
52d8f0d8 | 263 | |
d62a17ae | 264 | #define parse_rtattr_nested(tb, max, rta) \ |
265 | netlink_parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)) | |
1fdc9eae | 266 | |
d62a17ae | 267 | static void netlink_vrf_change(struct nlmsghdr *h, struct rtattr *tb, |
268 | const char *name) | |
1fdc9eae | 269 | { |
d62a17ae | 270 | struct ifinfomsg *ifi; |
271 | struct rtattr *linkinfo[IFLA_INFO_MAX + 1]; | |
272 | struct rtattr *attr[IFLA_VRF_MAX + 1]; | |
273 | struct vrf *vrf; | |
274 | struct zebra_vrf *zvrf; | |
d7c0a89a | 275 | uint32_t nl_table_id; |
d62a17ae | 276 | |
277 | ifi = NLMSG_DATA(h); | |
278 | ||
279 | memset(linkinfo, 0, sizeof linkinfo); | |
280 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); | |
281 | ||
282 | if (!linkinfo[IFLA_INFO_DATA]) { | |
283 | if (IS_ZEBRA_DEBUG_KERNEL) | |
284 | zlog_debug( | |
285 | "%s: IFLA_INFO_DATA missing from VRF message: %s", | |
286 | __func__, name); | |
287 | return; | |
288 | } | |
289 | ||
290 | memset(attr, 0, sizeof attr); | |
291 | parse_rtattr_nested(attr, IFLA_VRF_MAX, linkinfo[IFLA_INFO_DATA]); | |
292 | if (!attr[IFLA_VRF_TABLE]) { | |
293 | if (IS_ZEBRA_DEBUG_KERNEL) | |
294 | zlog_debug( | |
295 | "%s: IFLA_VRF_TABLE missing from VRF message: %s", | |
296 | __func__, name); | |
297 | return; | |
1fdc9eae | 298 | } |
299 | ||
d7c0a89a | 300 | nl_table_id = *(uint32_t *)RTA_DATA(attr[IFLA_VRF_TABLE]); |
d62a17ae | 301 | |
302 | if (h->nlmsg_type == RTM_NEWLINK) { | |
303 | if (IS_ZEBRA_DEBUG_KERNEL) | |
304 | zlog_debug("RTM_NEWLINK for VRF %s(%u) table %u", name, | |
305 | ifi->ifi_index, nl_table_id); | |
306 | ||
307 | /* | |
308 | * vrf_get is implied creation if it does not exist | |
309 | */ | |
310 | vrf = vrf_get((vrf_id_t)ifi->ifi_index, | |
311 | name); // It would create vrf | |
312 | if (!vrf) { | |
af4c2728 | 313 | flog_err(LIB_ERR_INTERFACE, "VRF %s id %u not created", |
4d43f68a | 314 | name, ifi->ifi_index); |
d62a17ae | 315 | return; |
316 | } | |
317 | ||
d62a17ae | 318 | /* |
319 | * This is the only place that we get the actual kernel table_id | |
320 | * being used. We need it to set the table_id of the routes | |
321 | * we are passing to the kernel.... And to throw some totally | |
322 | * awesome parties. that too. | |
593406a1 DS |
323 | * |
324 | * At this point we *must* have a zvrf because the vrf_create | |
325 | * callback creates one. We *must* set the table id | |
326 | * before the vrf_enable because of( at the very least ) | |
327 | * static routes being delayed for installation until | |
328 | * during the vrf_enable callbacks. | |
d62a17ae | 329 | */ |
330 | zvrf = (struct zebra_vrf *)vrf->info; | |
331 | zvrf->table_id = nl_table_id; | |
593406a1 DS |
332 | |
333 | /* Enable the created VRF. */ | |
334 | if (!vrf_enable(vrf)) { | |
af4c2728 | 335 | flog_err(LIB_ERR_INTERFACE, |
4d43f68a DS |
336 | "Failed to enable VRF %s id %u", name, |
337 | ifi->ifi_index); | |
593406a1 DS |
338 | return; |
339 | } | |
340 | ||
d62a17ae | 341 | } else // h->nlmsg_type == RTM_DELLINK |
342 | { | |
343 | if (IS_ZEBRA_DEBUG_KERNEL) | |
344 | zlog_debug("RTM_DELLINK for VRF %s(%u)", name, | |
345 | ifi->ifi_index); | |
346 | ||
347 | vrf = vrf_lookup_by_id((vrf_id_t)ifi->ifi_index); | |
348 | ||
349 | if (!vrf) { | |
350 | zlog_warn("%s: vrf not found", __func__); | |
351 | return; | |
352 | } | |
353 | ||
354 | vrf_delete(vrf); | |
355 | } | |
1fdc9eae | 356 | } |
357 | ||
0268f30e | 358 | static int get_iflink_speed(struct interface *interface) |
535fe877 | 359 | { |
d62a17ae | 360 | struct ifreq ifdata; |
361 | struct ethtool_cmd ecmd; | |
362 | int sd; | |
363 | int rc; | |
0268f30e | 364 | const char *ifname = interface->name; |
d62a17ae | 365 | |
366 | /* initialize struct */ | |
367 | memset(&ifdata, 0, sizeof(ifdata)); | |
368 | ||
369 | /* set interface name */ | |
0af35d90 | 370 | strlcpy(ifdata.ifr_name, ifname, sizeof(ifdata.ifr_name)); |
d62a17ae | 371 | |
372 | /* initialize ethtool interface */ | |
373 | memset(&ecmd, 0, sizeof(ecmd)); | |
374 | ecmd.cmd = ETHTOOL_GSET; /* ETHTOOL_GLINK */ | |
ba85366a | 375 | ifdata.ifr_data = (caddr_t)&ecmd; |
d62a17ae | 376 | |
377 | /* use ioctl to get IP address of an interface */ | |
01b9e3fd DL |
378 | frr_elevate_privs(&zserv_privs) { |
379 | sd = vrf_socket(PF_INET, SOCK_DGRAM, IPPROTO_IP, | |
380 | interface->vrf_id, | |
381 | NULL); | |
382 | if (sd < 0) { | |
383 | if (IS_ZEBRA_DEBUG_KERNEL) | |
384 | zlog_debug("Failure to read interface %s speed: %d %s", | |
385 | ifname, errno, safe_strerror(errno)); | |
386 | return 0; | |
387 | } | |
d62a17ae | 388 | /* Get the current link state for the interface */ |
633fc9b1 DL |
389 | rc = vrf_ioctl(interface->vrf_id, sd, SIOCETHTOOL, |
390 | (char *)&ifdata); | |
01b9e3fd | 391 | } |
d62a17ae | 392 | if (rc < 0) { |
bd7d0299 DS |
393 | if (IS_ZEBRA_DEBUG_KERNEL) |
394 | zlog_debug( | |
395 | "IOCTL failure to read interface %s speed: %d %s", | |
396 | ifname, errno, safe_strerror(errno)); | |
d62a17ae | 397 | ecmd.speed_hi = 0; |
398 | ecmd.speed = 0; | |
399 | } | |
400 | ||
401 | close(sd); | |
402 | ||
403 | return (ecmd.speed_hi << 16) | ecmd.speed; | |
535fe877 DS |
404 | } |
405 | ||
dc7b3cae DS |
406 | uint32_t kernel_get_speed(struct interface *ifp) |
407 | { | |
0268f30e | 408 | return get_iflink_speed(ifp); |
dc7b3cae DS |
409 | } |
410 | ||
d62a17ae | 411 | static int netlink_extract_bridge_info(struct rtattr *link_data, |
412 | struct zebra_l2info_bridge *bridge_info) | |
6675513d | 413 | { |
d62a17ae | 414 | struct rtattr *attr[IFLA_BR_MAX + 1]; |
415 | ||
416 | memset(bridge_info, 0, sizeof(*bridge_info)); | |
417 | memset(attr, 0, sizeof attr); | |
418 | parse_rtattr_nested(attr, IFLA_BR_MAX, link_data); | |
419 | if (attr[IFLA_BR_VLAN_FILTERING]) | |
420 | bridge_info->vlan_aware = | |
d7c0a89a | 421 | *(uint8_t *)RTA_DATA(attr[IFLA_BR_VLAN_FILTERING]); |
d62a17ae | 422 | return 0; |
6675513d | 423 | } |
424 | ||
d62a17ae | 425 | static int netlink_extract_vlan_info(struct rtattr *link_data, |
426 | struct zebra_l2info_vlan *vlan_info) | |
6675513d | 427 | { |
d62a17ae | 428 | struct rtattr *attr[IFLA_VLAN_MAX + 1]; |
429 | vlanid_t vid_in_msg; | |
430 | ||
431 | memset(vlan_info, 0, sizeof(*vlan_info)); | |
432 | memset(attr, 0, sizeof attr); | |
433 | parse_rtattr_nested(attr, IFLA_VLAN_MAX, link_data); | |
434 | if (!attr[IFLA_VLAN_ID]) { | |
435 | if (IS_ZEBRA_DEBUG_KERNEL) | |
436 | zlog_debug("IFLA_VLAN_ID missing from VLAN IF message"); | |
437 | return -1; | |
438 | } | |
439 | ||
440 | vid_in_msg = *(vlanid_t *)RTA_DATA(attr[IFLA_VLAN_ID]); | |
441 | vlan_info->vid = vid_in_msg; | |
442 | return 0; | |
6675513d | 443 | } |
444 | ||
d62a17ae | 445 | static int netlink_extract_vxlan_info(struct rtattr *link_data, |
446 | struct zebra_l2info_vxlan *vxl_info) | |
6675513d | 447 | { |
d62a17ae | 448 | struct rtattr *attr[IFLA_VXLAN_MAX + 1]; |
449 | vni_t vni_in_msg; | |
450 | struct in_addr vtep_ip_in_msg; | |
451 | ||
452 | memset(vxl_info, 0, sizeof(*vxl_info)); | |
453 | memset(attr, 0, sizeof attr); | |
454 | parse_rtattr_nested(attr, IFLA_VXLAN_MAX, link_data); | |
455 | if (!attr[IFLA_VXLAN_ID]) { | |
456 | if (IS_ZEBRA_DEBUG_KERNEL) | |
457 | zlog_debug( | |
458 | "IFLA_VXLAN_ID missing from VXLAN IF message"); | |
459 | return -1; | |
460 | } | |
461 | ||
462 | vni_in_msg = *(vni_t *)RTA_DATA(attr[IFLA_VXLAN_ID]); | |
463 | vxl_info->vni = vni_in_msg; | |
464 | if (!attr[IFLA_VXLAN_LOCAL]) { | |
465 | if (IS_ZEBRA_DEBUG_KERNEL) | |
466 | zlog_debug( | |
467 | "IFLA_VXLAN_LOCAL missing from VXLAN IF message"); | |
468 | } else { | |
469 | vtep_ip_in_msg = | |
470 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_LOCAL]); | |
471 | vxl_info->vtep_ip = vtep_ip_in_msg; | |
472 | } | |
473 | ||
474 | return 0; | |
6675513d | 475 | } |
476 | ||
477 | /* | |
478 | * Extract and save L2 params (of interest) for an interface. When a | |
479 | * bridge interface is added or updated, take further actions to map | |
480 | * its members. Likewise, for VxLAN interface. | |
481 | */ | |
d62a17ae | 482 | static void netlink_interface_update_l2info(struct interface *ifp, |
483 | struct rtattr *link_data, int add) | |
6675513d | 484 | { |
d62a17ae | 485 | if (!link_data) |
486 | return; | |
487 | ||
488 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
489 | struct zebra_l2info_bridge bridge_info; | |
490 | ||
491 | netlink_extract_bridge_info(link_data, &bridge_info); | |
492 | zebra_l2_bridge_add_update(ifp, &bridge_info, add); | |
493 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
494 | struct zebra_l2info_vlan vlan_info; | |
495 | ||
496 | netlink_extract_vlan_info(link_data, &vlan_info); | |
497 | zebra_l2_vlanif_update(ifp, &vlan_info); | |
498 | } else if (IS_ZEBRA_IF_VXLAN(ifp)) { | |
499 | struct zebra_l2info_vxlan vxlan_info; | |
500 | ||
501 | netlink_extract_vxlan_info(link_data, &vxlan_info); | |
502 | zebra_l2_vxlanif_add_update(ifp, &vxlan_info, add); | |
503 | } | |
6675513d | 504 | } |
505 | ||
d62a17ae | 506 | static int netlink_bridge_interface(struct nlmsghdr *h, int len, ns_id_t ns_id, |
507 | int startup) | |
6675513d | 508 | { |
d62a17ae | 509 | char *name = NULL; |
510 | struct ifinfomsg *ifi; | |
511 | struct rtattr *tb[IFLA_MAX + 1]; | |
512 | struct interface *ifp; | |
513 | struct rtattr *aftb[IFLA_BRIDGE_MAX + 1]; | |
514 | struct { | |
d7c0a89a QY |
515 | uint16_t flags; |
516 | uint16_t vid; | |
d62a17ae | 517 | } * vinfo; |
518 | vlanid_t access_vlan; | |
519 | ||
520 | /* Fetch name and ifindex */ | |
521 | ifi = NLMSG_DATA(h); | |
522 | memset(tb, 0, sizeof tb); | |
523 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
524 | ||
525 | if (tb[IFLA_IFNAME] == NULL) | |
526 | return -1; | |
527 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
528 | ||
529 | /* The interface should already be known, if not discard. */ | |
530 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(ns_id), ifi->ifi_index); | |
531 | if (!ifp) { | |
532 | zlog_warn("Cannot find bridge IF %s(%u)", name, ifi->ifi_index); | |
533 | return 0; | |
534 | } | |
535 | if (!IS_ZEBRA_IF_VXLAN(ifp)) | |
536 | return 0; | |
537 | ||
538 | /* We are only interested in the access VLAN i.e., AF_SPEC */ | |
539 | if (!tb[IFLA_AF_SPEC]) | |
540 | return 0; | |
541 | ||
542 | /* There is a 1-to-1 mapping of VLAN to VxLAN - hence | |
543 | * only 1 access VLAN is accepted. | |
544 | */ | |
545 | memset(aftb, 0, sizeof aftb); | |
546 | parse_rtattr_nested(aftb, IFLA_BRIDGE_MAX, tb[IFLA_AF_SPEC]); | |
547 | if (!aftb[IFLA_BRIDGE_VLAN_INFO]) | |
548 | return 0; | |
549 | ||
550 | vinfo = RTA_DATA(aftb[IFLA_BRIDGE_VLAN_INFO]); | |
551 | if (!(vinfo->flags & BRIDGE_VLAN_INFO_PVID)) | |
552 | return 0; | |
553 | ||
554 | access_vlan = (vlanid_t)vinfo->vid; | |
555 | if (IS_ZEBRA_DEBUG_KERNEL) | |
556 | zlog_debug("Access VLAN %u for VxLAN IF %s(%u)", access_vlan, | |
557 | name, ifi->ifi_index); | |
558 | zebra_l2_vxlanif_update_access_vlan(ifp, access_vlan); | |
559 | return 0; | |
6675513d | 560 | } |
561 | ||
2414abd3 DS |
562 | /* |
563 | * Called from interface_lookup_netlink(). This function is only used | |
564 | * during bootstrap. | |
565 | */ | |
566 | static int netlink_interface(struct nlmsghdr *h, ns_id_t ns_id, int startup) | |
1fdc9eae | 567 | { |
d62a17ae | 568 | int len; |
569 | struct ifinfomsg *ifi; | |
570 | struct rtattr *tb[IFLA_MAX + 1]; | |
571 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
572 | struct interface *ifp; | |
573 | char *name = NULL; | |
574 | char *kind = NULL; | |
48884c6b | 575 | char *desc = NULL; |
d62a17ae | 576 | char *slave_kind = NULL; |
577 | struct zebra_ns *zns; | |
578 | vrf_id_t vrf_id = VRF_DEFAULT; | |
579 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
580 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
581 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
582 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
583 | ||
584 | zns = zebra_ns_lookup(ns_id); | |
585 | ifi = NLMSG_DATA(h); | |
586 | ||
587 | if (h->nlmsg_type != RTM_NEWLINK) | |
588 | return 0; | |
589 | ||
590 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
9bdf8618 DS |
591 | if (len < 0) { |
592 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
593 | __PRETTY_FUNCTION__, | |
594 | h->nlmsg_len, | |
595 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 596 | return -1; |
9bdf8618 | 597 | } |
d62a17ae | 598 | |
599 | /* We are interested in some AF_BRIDGE notifications. */ | |
600 | if (ifi->ifi_family == AF_BRIDGE) | |
601 | return netlink_bridge_interface(h, len, ns_id, startup); | |
602 | ||
603 | /* Looking up interface name. */ | |
604 | memset(tb, 0, sizeof tb); | |
605 | memset(linkinfo, 0, sizeof linkinfo); | |
606 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 607 | |
d62a17ae | 608 | /* check for wireless messages to ignore */ |
609 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
610 | if (IS_ZEBRA_DEBUG_KERNEL) | |
611 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
612 | __func__); | |
613 | return 0; | |
614 | } | |
1fdc9eae | 615 | |
d62a17ae | 616 | if (tb[IFLA_IFNAME] == NULL) |
617 | return -1; | |
618 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 619 | |
48884c6b DS |
620 | if (tb[IFLA_IFALIAS]) |
621 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
622 | ||
d62a17ae | 623 | if (tb[IFLA_LINKINFO]) { |
624 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 625 | |
d62a17ae | 626 | if (linkinfo[IFLA_INFO_KIND]) |
627 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 628 | |
d62a17ae | 629 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
630 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 631 | |
d62a17ae | 632 | netlink_determine_zebra_iftype(kind, &zif_type); |
633 | } | |
634 | ||
635 | /* If VRF, create the VRF structure itself. */ | |
78dd30b2 | 636 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 637 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
638 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
639 | } | |
640 | ||
641 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
642 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
643 | && !vrf_is_backend_netns()) { | |
d62a17ae | 644 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 645 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 646 | } else if (slave_kind && (strcmp(slave_kind, "bridge") == 0)) { |
647 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
648 | bridge_ifindex = | |
649 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
650 | } else | |
651 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
652 | } | |
78dd30b2 PG |
653 | if (vrf_is_backend_netns()) |
654 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 655 | |
656 | /* If linking to another interface, note it. */ | |
657 | if (tb[IFLA_LINK]) | |
658 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
659 | ||
660 | /* Add interface. */ | |
bcc24579 | 661 | ifp = if_get_by_name(name, vrf_id, 0); |
d62a17ae | 662 | set_ifindex(ifp, ifi->ifi_index, zns); |
663 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d62a17ae | 664 | ifp->mtu6 = ifp->mtu = *(uint32_t *)RTA_DATA(tb[IFLA_MTU]); |
665 | ifp->metric = 0; | |
0268f30e | 666 | ifp->speed = get_iflink_speed(ifp); |
d62a17ae | 667 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; |
668 | ||
48884c6b DS |
669 | if (desc) |
670 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
671 | ||
d62a17ae | 672 | /* Set zebra interface type */ |
673 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
674 | if (IS_ZEBRA_IF_VRF(ifp)) |
675 | SET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 676 | |
677 | /* Update link. */ | |
678 | zebra_if_update_link(ifp, link_ifindex); | |
679 | ||
680 | /* Hardware type and address. */ | |
681 | ifp->ll_type = netlink_to_zebra_link_type(ifi->ifi_type); | |
682 | netlink_interface_update_hw_addr(tb, ifp); | |
683 | ||
684 | if_add_update(ifp); | |
685 | ||
686 | /* Extract and save L2 interface information, take additional actions. | |
687 | */ | |
688 | netlink_interface_update_l2info(ifp, linkinfo[IFLA_INFO_DATA], 1); | |
689 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
690 | zebra_l2if_update_bridge_slave(ifp, bridge_ifindex); | |
691 | ||
692 | return 0; | |
1fdc9eae | 693 | } |
694 | ||
289602d7 | 695 | /* Request for specific interface or address information from the kernel */ |
d62a17ae | 696 | static int netlink_request_intf_addr(struct zebra_ns *zns, int family, int type, |
d7c0a89a | 697 | uint32_t filter_mask) |
289602d7 | 698 | { |
d62a17ae | 699 | struct { |
700 | struct nlmsghdr n; | |
701 | struct ifinfomsg ifm; | |
702 | char buf[256]; | |
703 | } req; | |
704 | ||
705 | /* Form the request, specifying filter (rtattr) if needed. */ | |
706 | memset(&req, 0, sizeof(req)); | |
707 | req.n.nlmsg_type = type; | |
708 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
709 | req.ifm.ifi_family = family; | |
710 | ||
711 | /* Include filter, if specified. */ | |
712 | if (filter_mask) | |
713 | addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filter_mask); | |
714 | ||
715 | return netlink_request(&zns->netlink_cmd, &req.n); | |
289602d7 | 716 | } |
717 | ||
1fdc9eae | 718 | /* Interface lookup by netlink socket. */ |
d62a17ae | 719 | int interface_lookup_netlink(struct zebra_ns *zns) |
1fdc9eae | 720 | { |
d62a17ae | 721 | int ret; |
722 | ||
723 | /* Get interface information. */ | |
724 | ret = netlink_request_intf_addr(zns, AF_PACKET, RTM_GETLINK, 0); | |
725 | if (ret < 0) | |
726 | return ret; | |
727 | ret = netlink_parse_info(netlink_interface, &zns->netlink_cmd, zns, 0, | |
728 | 1); | |
729 | if (ret < 0) | |
730 | return ret; | |
731 | ||
732 | /* Get interface information - for bridge interfaces. */ | |
733 | ret = netlink_request_intf_addr(zns, AF_BRIDGE, RTM_GETLINK, | |
734 | RTEXT_FILTER_BRVLAN); | |
735 | if (ret < 0) | |
736 | return ret; | |
737 | ret = netlink_parse_info(netlink_interface, &zns->netlink_cmd, zns, 0, | |
738 | 0); | |
739 | if (ret < 0) | |
740 | return ret; | |
741 | ||
742 | /* Get interface information - for bridge interfaces. */ | |
743 | ret = netlink_request_intf_addr(zns, AF_BRIDGE, RTM_GETLINK, | |
744 | RTEXT_FILTER_BRVLAN); | |
745 | if (ret < 0) | |
746 | return ret; | |
747 | ret = netlink_parse_info(netlink_interface, &zns->netlink_cmd, zns, 0, | |
748 | 0); | |
749 | if (ret < 0) | |
750 | return ret; | |
751 | ||
752 | /* Get IPv4 address of the interfaces. */ | |
753 | ret = netlink_request_intf_addr(zns, AF_INET, RTM_GETADDR, 0); | |
754 | if (ret < 0) | |
755 | return ret; | |
756 | ret = netlink_parse_info(netlink_interface_addr, &zns->netlink_cmd, zns, | |
757 | 0, 1); | |
758 | if (ret < 0) | |
759 | return ret; | |
760 | ||
761 | /* Get IPv6 address of the interfaces. */ | |
762 | ret = netlink_request_intf_addr(zns, AF_INET6, RTM_GETADDR, 0); | |
763 | if (ret < 0) | |
764 | return ret; | |
765 | ret = netlink_parse_info(netlink_interface_addr, &zns->netlink_cmd, zns, | |
766 | 0, 1); | |
767 | if (ret < 0) | |
768 | return ret; | |
769 | ||
770 | return 0; | |
1fdc9eae | 771 | } |
772 | ||
e0ae31b8 DS |
773 | int kernel_interface_set_master(struct interface *master, |
774 | struct interface *slave) | |
775 | { | |
776 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
777 | ||
778 | struct { | |
779 | struct nlmsghdr n; | |
780 | struct ifinfomsg ifa; | |
781 | char buf[NL_PKT_BUF_SIZE]; | |
782 | } req; | |
783 | ||
784 | memset(&req, 0, sizeof req); | |
785 | ||
786 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
787 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
788 | req.n.nlmsg_type = RTM_SETLINK; | |
789 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
790 | ||
791 | req.ifa.ifi_index = slave->ifindex; | |
792 | ||
793 | addattr_l(&req.n, sizeof req, IFLA_MASTER, &master->ifindex, 4); | |
794 | addattr_l(&req.n, sizeof req, IFLA_LINK, &slave->ifindex, 4); | |
795 | ||
796 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
797 | 0); | |
798 | } | |
799 | ||
1fdc9eae | 800 | /* Interface address modification. */ |
d62a17ae | 801 | static int netlink_address(int cmd, int family, struct interface *ifp, |
802 | struct connected *ifc) | |
1fdc9eae | 803 | { |
d62a17ae | 804 | int bytelen; |
805 | struct prefix *p; | |
1fdc9eae | 806 | |
d62a17ae | 807 | struct { |
808 | struct nlmsghdr n; | |
809 | struct ifaddrmsg ifa; | |
810 | char buf[NL_PKT_BUF_SIZE]; | |
811 | } req; | |
1fdc9eae | 812 | |
fe533c56 | 813 | struct zebra_ns *zns; |
1fdc9eae | 814 | |
fe533c56 PG |
815 | if (vrf_is_backend_netns()) |
816 | zns = zebra_ns_lookup((ns_id_t)ifp->vrf_id); | |
817 | else | |
818 | zns = zebra_ns_lookup(NS_DEFAULT); | |
d62a17ae | 819 | p = ifc->address; |
820 | memset(&req, 0, sizeof req - NL_PKT_BUF_SIZE); | |
1fdc9eae | 821 | |
d62a17ae | 822 | bytelen = (family == AF_INET ? 4 : 16); |
1fdc9eae | 823 | |
d62a17ae | 824 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)); |
825 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
826 | req.n.nlmsg_type = cmd; | |
827 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
a55ba23f | 828 | |
d62a17ae | 829 | req.ifa.ifa_family = family; |
1fdc9eae | 830 | |
d62a17ae | 831 | req.ifa.ifa_index = ifp->ifindex; |
1fdc9eae | 832 | |
d62a17ae | 833 | addattr_l(&req.n, sizeof req, IFA_LOCAL, &p->u.prefix, bytelen); |
1fdc9eae | 834 | |
e8d19a05 DL |
835 | if (family == AF_INET) { |
836 | if (CONNECTED_PEER(ifc)) { | |
837 | p = ifc->destination; | |
60466a63 QY |
838 | addattr_l(&req.n, sizeof req, IFA_ADDRESS, &p->u.prefix, |
839 | bytelen); | |
e8d19a05 | 840 | } else if (cmd == RTM_NEWADDR && ifc->destination) { |
d62a17ae | 841 | p = ifc->destination; |
842 | addattr_l(&req.n, sizeof req, IFA_BROADCAST, | |
843 | &p->u.prefix, bytelen); | |
844 | } | |
845 | } | |
1fdc9eae | 846 | |
e8d19a05 DL |
847 | /* p is now either ifc->address or ifc->destination */ |
848 | req.ifa.ifa_prefixlen = p->prefixlen; | |
849 | ||
d62a17ae | 850 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) |
851 | SET_FLAG(req.ifa.ifa_flags, IFA_F_SECONDARY); | |
1fdc9eae | 852 | |
d62a17ae | 853 | if (ifc->label) |
854 | addattr_l(&req.n, sizeof req, IFA_LABEL, ifc->label, | |
855 | strlen(ifc->label) + 1); | |
1fdc9eae | 856 | |
d62a17ae | 857 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, |
858 | 0); | |
1fdc9eae | 859 | } |
860 | ||
d62a17ae | 861 | int kernel_address_add_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 862 | { |
d62a17ae | 863 | return netlink_address(RTM_NEWADDR, AF_INET, ifp, ifc); |
1fdc9eae | 864 | } |
865 | ||
d62a17ae | 866 | int kernel_address_delete_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 867 | { |
d62a17ae | 868 | return netlink_address(RTM_DELADDR, AF_INET, ifp, ifc); |
1fdc9eae | 869 | } |
870 | ||
996c9314 | 871 | int kernel_address_add_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 872 | { |
996c9314 | 873 | return netlink_address(RTM_NEWADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
874 | } |
875 | ||
996c9314 | 876 | int kernel_address_delete_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 877 | { |
996c9314 | 878 | return netlink_address(RTM_DELADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
879 | } |
880 | ||
2414abd3 | 881 | int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 882 | { |
d62a17ae | 883 | int len; |
884 | struct ifaddrmsg *ifa; | |
885 | struct rtattr *tb[IFA_MAX + 1]; | |
886 | struct interface *ifp; | |
887 | void *addr; | |
888 | void *broad; | |
d7c0a89a | 889 | uint8_t flags = 0; |
d62a17ae | 890 | char *label = NULL; |
891 | struct zebra_ns *zns; | |
892 | ||
893 | zns = zebra_ns_lookup(ns_id); | |
894 | ifa = NLMSG_DATA(h); | |
895 | ||
8a1b681c SW |
896 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { |
897 | zlog_warn( | |
81227874 | 898 | "Invalid address family: %u received from kernel interface addr change: %u", |
8a1b681c | 899 | ifa->ifa_family, h->nlmsg_type); |
d62a17ae | 900 | return 0; |
8a1b681c | 901 | } |
d62a17ae | 902 | |
903 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
904 | return 0; | |
905 | ||
906 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
9bdf8618 DS |
907 | if (len < 0) { |
908 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
909 | __PRETTY_FUNCTION__, | |
910 | h->nlmsg_len, | |
911 | (size_t)NLMSG_LENGTH(sizeof(struct ifaddrmsg))); | |
d62a17ae | 912 | return -1; |
9bdf8618 | 913 | } |
d62a17ae | 914 | |
915 | memset(tb, 0, sizeof tb); | |
916 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); | |
917 | ||
918 | ifp = if_lookup_by_index_per_ns(zns, ifa->ifa_index); | |
919 | if (ifp == NULL) { | |
af4c2728 | 920 | flog_err( |
4d43f68a | 921 | LIB_ERR_INTERFACE, |
d62a17ae | 922 | "netlink_interface_addr can't find interface by index %d", |
923 | ifa->ifa_index); | |
924 | return -1; | |
925 | } | |
926 | ||
927 | if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */ | |
928 | { | |
929 | char buf[BUFSIZ]; | |
930 | zlog_debug("netlink_interface_addr %s %s flags 0x%x:", | |
931 | nl_msg_type_to_str(h->nlmsg_type), ifp->name, | |
932 | ifa->ifa_flags); | |
933 | if (tb[IFA_LOCAL]) | |
934 | zlog_debug(" IFA_LOCAL %s/%d", | |
935 | inet_ntop(ifa->ifa_family, | |
936 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
937 | BUFSIZ), | |
938 | ifa->ifa_prefixlen); | |
939 | if (tb[IFA_ADDRESS]) | |
940 | zlog_debug(" IFA_ADDRESS %s/%d", | |
941 | inet_ntop(ifa->ifa_family, | |
942 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
943 | BUFSIZ), | |
944 | ifa->ifa_prefixlen); | |
945 | if (tb[IFA_BROADCAST]) | |
946 | zlog_debug(" IFA_BROADCAST %s/%d", | |
947 | inet_ntop(ifa->ifa_family, | |
948 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
949 | BUFSIZ), | |
950 | ifa->ifa_prefixlen); | |
951 | if (tb[IFA_LABEL] && strcmp(ifp->name, RTA_DATA(tb[IFA_LABEL]))) | |
952 | zlog_debug(" IFA_LABEL %s", | |
953 | (char *)RTA_DATA(tb[IFA_LABEL])); | |
954 | ||
955 | if (tb[IFA_CACHEINFO]) { | |
956 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
957 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
958 | ci->ifa_prefered, ci->ifa_valid); | |
959 | } | |
960 | } | |
961 | ||
962 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
963 | if (tb[IFA_LOCAL] == NULL) | |
964 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
965 | if (tb[IFA_ADDRESS] == NULL) | |
966 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
967 | ||
968 | /* local interface address */ | |
969 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
970 | ||
971 | /* is there a peer address? */ | |
972 | if (tb[IFA_ADDRESS] | |
973 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
974 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
975 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
976 | SET_FLAG(flags, ZEBRA_IFA_PEER); | |
977 | } else | |
978 | /* seeking a broadcast address */ | |
979 | broad = (tb[IFA_BROADCAST] ? RTA_DATA(tb[IFA_BROADCAST]) | |
980 | : NULL); | |
981 | ||
982 | /* addr is primary key, SOL if we don't have one */ | |
983 | if (addr == NULL) { | |
984 | zlog_debug("%s: NULL address", __func__); | |
985 | return -1; | |
986 | } | |
987 | ||
988 | /* Flags. */ | |
989 | if (ifa->ifa_flags & IFA_F_SECONDARY) | |
990 | SET_FLAG(flags, ZEBRA_IFA_SECONDARY); | |
991 | ||
992 | /* Label */ | |
993 | if (tb[IFA_LABEL]) | |
994 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
995 | ||
2e1cc436 | 996 | if (label && strcmp(ifp->name, label) == 0) |
d62a17ae | 997 | label = NULL; |
998 | ||
999 | /* Register interface address to the interface. */ | |
1000 | if (ifa->ifa_family == AF_INET) { | |
930571d2 | 1001 | if (ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { |
e17d9b2d | 1002 | zlog_err( |
75829703 | 1003 | "Invalid prefix length: %u received from kernel interface addr change: %u", |
930571d2 | 1004 | ifa->ifa_prefixlen, h->nlmsg_type); |
e17d9b2d | 1005 | return -1; |
930571d2 | 1006 | } |
d62a17ae | 1007 | if (h->nlmsg_type == RTM_NEWADDR) |
1008 | connected_add_ipv4(ifp, flags, (struct in_addr *)addr, | |
1009 | ifa->ifa_prefixlen, | |
1010 | (struct in_addr *)broad, label); | |
1011 | else | |
1012 | connected_delete_ipv4( | |
1013 | ifp, flags, (struct in_addr *)addr, | |
1014 | ifa->ifa_prefixlen, (struct in_addr *)broad); | |
1015 | } | |
1016 | if (ifa->ifa_family == AF_INET6) { | |
930571d2 | 1017 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { |
e17d9b2d | 1018 | zlog_err( |
75829703 | 1019 | "Invalid prefix length: %u received from kernel interface addr change: %u", |
930571d2 | 1020 | ifa->ifa_prefixlen, h->nlmsg_type); |
e17d9b2d | 1021 | return -1; |
930571d2 | 1022 | } |
d62a17ae | 1023 | if (h->nlmsg_type == RTM_NEWADDR) { |
1024 | /* Only consider valid addresses; we'll not get a | |
1025 | * notification from | |
1026 | * the kernel till IPv6 DAD has completed, but at init | |
1027 | * time, Quagga | |
1028 | * does query for and will receive all addresses. | |
1029 | */ | |
1030 | if (!(ifa->ifa_flags | |
1031 | & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) | |
60466a63 QY |
1032 | connected_add_ipv6(ifp, flags, |
1033 | (struct in6_addr *)addr, | |
60c0687a | 1034 | (struct in6_addr *)broad, |
60466a63 | 1035 | ifa->ifa_prefixlen, label); |
d62a17ae | 1036 | } else |
1037 | connected_delete_ipv6(ifp, (struct in6_addr *)addr, | |
60c0687a | 1038 | (struct in6_addr *)broad, |
608105a7 | 1039 | ifa->ifa_prefixlen); |
d62a17ae | 1040 | } |
1041 | ||
1042 | return 0; | |
1fdc9eae | 1043 | } |
1044 | ||
b53686c5 PG |
1045 | /* helper function called by if_netlink_change |
1046 | * to delete interfaces in case the interface moved | |
1047 | * to an other netns | |
1048 | */ | |
1049 | static void if_netlink_check_ifp_instance_consistency(uint16_t cmd, | |
1050 | struct interface *ifp, | |
1051 | ns_id_t ns_id) | |
1052 | { | |
9373219c | 1053 | struct interface *other_ifp; |
b53686c5 PG |
1054 | |
1055 | /* | |
1056 | * look if interface name is also found on other netns | |
1057 | * - only if vrf backend is netns | |
1058 | * - do not concern lo interface | |
1059 | * - then remove previous one | |
1060 | * - for new link case, check found interface is not active | |
1061 | */ | |
1062 | if (!vrf_is_backend_netns() || | |
1063 | !strcmp(ifp->name, "lo")) | |
1064 | return; | |
9373219c PG |
1065 | other_ifp = if_lookup_by_name_not_ns(ns_id, ifp->name); |
1066 | if (!other_ifp) | |
b53686c5 | 1067 | return; |
5efbf310 PG |
1068 | /* because previous interface may be inactive, |
1069 | * interface is moved back to default vrf | |
1070 | * then one may find the same pointer; ignore | |
1071 | */ | |
1072 | if (other_ifp == ifp) | |
1073 | return; | |
b53686c5 | 1074 | if ((cmd == RTM_NEWLINK) |
9373219c | 1075 | && (CHECK_FLAG(other_ifp->status, ZEBRA_INTERFACE_ACTIVE))) |
b53686c5 | 1076 | return; |
9373219c PG |
1077 | if (IS_ZEBRA_DEBUG_KERNEL && cmd == RTM_NEWLINK) { |
1078 | zlog_debug("RTM_NEWLINK %s(%u, VRF %u) replaces %s(%u, VRF %u)\n", | |
1079 | ifp->name, | |
1080 | ifp->ifindex, | |
1081 | ifp->vrf_id, | |
1082 | other_ifp->name, | |
1083 | other_ifp->ifindex, | |
1084 | other_ifp->vrf_id); | |
1085 | } else if (IS_ZEBRA_DEBUG_KERNEL && cmd == RTM_DELLINK) { | |
1086 | zlog_debug("RTM_DELLINK %s(%u, VRF %u) is replaced by %s(%u, VRF %u)\n", | |
b53686c5 | 1087 | ifp->name, |
9373219c PG |
1088 | ifp->ifindex, |
1089 | ifp->vrf_id, | |
1090 | other_ifp->name, | |
1091 | other_ifp->ifindex, | |
1092 | other_ifp->vrf_id); | |
1093 | } | |
b53686c5 PG |
1094 | /* the found interface replaces the current one |
1095 | * remove it | |
1096 | */ | |
1097 | if (cmd == RTM_DELLINK) | |
1098 | if_delete(ifp); | |
1099 | else | |
9373219c | 1100 | if_delete(other_ifp); |
b53686c5 PG |
1101 | /* the found interface is replaced by the current one |
1102 | * suppress it | |
1103 | */ | |
1104 | } | |
1105 | ||
2414abd3 | 1106 | int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1107 | { |
d62a17ae | 1108 | int len; |
1109 | struct ifinfomsg *ifi; | |
1110 | struct rtattr *tb[IFLA_MAX + 1]; | |
1111 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1112 | struct interface *ifp; | |
1113 | char *name = NULL; | |
1114 | char *kind = NULL; | |
48884c6b | 1115 | char *desc = NULL; |
d62a17ae | 1116 | char *slave_kind = NULL; |
1117 | struct zebra_ns *zns; | |
1118 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1119 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
1120 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
1121 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
1122 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
1123 | ||
1124 | ||
1125 | zns = zebra_ns_lookup(ns_id); | |
1126 | ifi = NLMSG_DATA(h); | |
1127 | ||
fe533c56 | 1128 | /* assume if not default zns, then new VRF */ |
d62a17ae | 1129 | if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) { |
1130 | /* If this is not link add/delete message so print warning. */ | |
1131 | zlog_warn("netlink_link_change: wrong kernel message %d", | |
1132 | h->nlmsg_type); | |
1133 | return 0; | |
1134 | } | |
1135 | ||
8a1b681c SW |
1136 | if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE |
1137 | || ifi->ifi_family == AF_INET6)) { | |
1138 | zlog_warn( | |
81227874 | 1139 | "Invalid address family: %u received from kernel link change: %u", |
8a1b681c SW |
1140 | ifi->ifi_family, h->nlmsg_type); |
1141 | return 0; | |
1142 | } | |
1143 | ||
d62a17ae | 1144 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
9bdf8618 DS |
1145 | if (len < 0) { |
1146 | zlog_err("%s: Message received from netlink is of a broken size %d %zu", | |
1147 | __PRETTY_FUNCTION__, h->nlmsg_len, | |
1148 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 1149 | return -1; |
9bdf8618 | 1150 | } |
d62a17ae | 1151 | |
1152 | /* We are interested in some AF_BRIDGE notifications. */ | |
1153 | if (ifi->ifi_family == AF_BRIDGE) | |
1154 | return netlink_bridge_interface(h, len, ns_id, startup); | |
1155 | ||
1156 | /* Looking up interface name. */ | |
1157 | memset(tb, 0, sizeof tb); | |
1158 | memset(linkinfo, 0, sizeof linkinfo); | |
1159 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 1160 | |
d62a17ae | 1161 | /* check for wireless messages to ignore */ |
1162 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
1163 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1164 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
1165 | __func__); | |
1166 | return 0; | |
1167 | } | |
1fdc9eae | 1168 | |
d62a17ae | 1169 | if (tb[IFLA_IFNAME] == NULL) |
1170 | return -1; | |
1171 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 1172 | |
d62a17ae | 1173 | if (tb[IFLA_LINKINFO]) { |
1174 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 1175 | |
d62a17ae | 1176 | if (linkinfo[IFLA_INFO_KIND]) |
1177 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 1178 | |
d62a17ae | 1179 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
1180 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 1181 | |
d62a17ae | 1182 | netlink_determine_zebra_iftype(kind, &zif_type); |
1183 | } | |
6675513d | 1184 | |
d62a17ae | 1185 | /* If linking to another interface, note it. */ |
1186 | if (tb[IFLA_LINK]) | |
1187 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1fdc9eae | 1188 | |
48884c6b DS |
1189 | if (tb[IFLA_IFALIAS]) { |
1190 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
1191 | } | |
1192 | ||
d62a17ae | 1193 | /* If VRF, create or update the VRF structure itself. */ |
78dd30b2 | 1194 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 1195 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
1196 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
1197 | } | |
1fdc9eae | 1198 | |
d62a17ae | 1199 | /* See if interface is present. */ |
1200 | ifp = if_lookup_by_name_per_ns(zns, name); | |
1201 | ||
48884c6b DS |
1202 | if (ifp) { |
1203 | if (ifp->desc) | |
1204 | XFREE(MTYPE_TMP, ifp->desc); | |
1205 | if (desc) | |
1206 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
1207 | } | |
1208 | ||
d62a17ae | 1209 | if (h->nlmsg_type == RTM_NEWLINK) { |
1210 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
1211 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
1212 | && !vrf_is_backend_netns()) { | |
d62a17ae | 1213 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 1214 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 1215 | } else if (slave_kind |
1216 | && (strcmp(slave_kind, "bridge") == 0)) { | |
1217 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
1218 | bridge_ifindex = | |
1219 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
1220 | } else | |
1221 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
1222 | } | |
fe533c56 PG |
1223 | if (vrf_is_backend_netns()) |
1224 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 1225 | if (ifp == NULL |
1226 | || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) { | |
1227 | /* Add interface notification from kernel */ | |
1228 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1229 | zlog_debug( | |
1230 | "RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d " | |
1231 | "sl_type %d master %u flags 0x%x", | |
1232 | name, ifi->ifi_index, vrf_id, zif_type, | |
1233 | zif_slave_type, bridge_ifindex, | |
1234 | ifi->ifi_flags); | |
1235 | ||
1236 | if (ifp == NULL) { | |
1237 | /* unknown interface */ | |
bcc24579 | 1238 | ifp = if_get_by_name(name, vrf_id, 0); |
d62a17ae | 1239 | } else { |
1240 | /* pre-configured interface, learnt now */ | |
1241 | if (ifp->vrf_id != vrf_id) | |
1242 | if_update_to_new_vrf(ifp, vrf_id); | |
1243 | } | |
1244 | ||
1245 | /* Update interface information. */ | |
1246 | set_ifindex(ifp, ifi->ifi_index, zns); | |
1247 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d23b983b SW |
1248 | if (!tb[IFLA_MTU]) { |
1249 | zlog_warn( | |
1250 | "RTM_NEWLINK for interface %s(%u) without MTU set", | |
1251 | name, ifi->ifi_index); | |
1252 | return 0; | |
1253 | } | |
d62a17ae | 1254 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1255 | ifp->metric = 0; | |
1256 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
1257 | ||
1258 | /* Set interface type */ | |
1259 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
1260 | if (IS_ZEBRA_IF_VRF(ifp)) |
1261 | SET_FLAG(ifp->status, | |
1262 | ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 1263 | |
1264 | /* Update link. */ | |
1265 | zebra_if_update_link(ifp, link_ifindex); | |
1266 | ||
1267 | netlink_interface_update_hw_addr(tb, ifp); | |
1268 | ||
1269 | /* Inform clients, install any configured addresses. */ | |
1270 | if_add_update(ifp); | |
1271 | ||
1272 | /* Extract and save L2 interface information, take | |
1273 | * additional actions. */ | |
1274 | netlink_interface_update_l2info( | |
1275 | ifp, linkinfo[IFLA_INFO_DATA], 1); | |
1276 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
1277 | zebra_l2if_update_bridge_slave(ifp, | |
1278 | bridge_ifindex); | |
b53686c5 PG |
1279 | if_netlink_check_ifp_instance_consistency(RTM_NEWLINK, |
1280 | ifp, ns_id); | |
d62a17ae | 1281 | } else if (ifp->vrf_id != vrf_id) { |
1282 | /* VRF change for an interface. */ | |
1283 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1284 | zlog_debug( | |
1285 | "RTM_NEWLINK vrf-change for %s(%u) " | |
1286 | "vrf_id %u -> %u flags 0x%x", | |
1287 | name, ifp->ifindex, ifp->vrf_id, vrf_id, | |
1288 | ifi->ifi_flags); | |
1289 | ||
1290 | if_handle_vrf_change(ifp, vrf_id); | |
1291 | } else { | |
1292 | int was_bridge_slave; | |
1293 | ||
1294 | /* Interface update. */ | |
1295 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1296 | zlog_debug( | |
1297 | "RTM_NEWLINK update for %s(%u) " | |
1298 | "sl_type %d master %u flags 0x%x", | |
1299 | name, ifp->ifindex, zif_slave_type, | |
1300 | bridge_ifindex, ifi->ifi_flags); | |
1301 | ||
1302 | set_ifindex(ifp, ifi->ifi_index, zns); | |
d23b983b SW |
1303 | if (!tb[IFLA_MTU]) { |
1304 | zlog_warn( | |
1305 | "RTM_NEWLINK for interface %s(%u) without MTU set", | |
1306 | name, ifi->ifi_index); | |
1307 | return 0; | |
1308 | } | |
d62a17ae | 1309 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1310 | ifp->metric = 0; | |
1311 | ||
1312 | /* Update interface type - NOTE: Only slave_type can | |
1313 | * change. */ | |
1314 | was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp); | |
1315 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
1316 | ||
1317 | netlink_interface_update_hw_addr(tb, ifp); | |
1318 | ||
1319 | if (if_is_no_ptm_operative(ifp)) { | |
1320 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1321 | if (!if_is_no_ptm_operative(ifp)) { | |
1322 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1323 | zlog_debug( | |
1324 | "Intf %s(%u) has gone DOWN", | |
1325 | name, ifp->ifindex); | |
1326 | if_down(ifp); | |
1327 | } else if (if_is_operative(ifp)) { | |
1328 | /* Must notify client daemons of new | |
1329 | * interface status. */ | |
1330 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1331 | zlog_debug( | |
1332 | "Intf %s(%u) PTM up, notifying clients", | |
1333 | name, ifp->ifindex); | |
1334 | zebra_interface_up_update(ifp); | |
1335 | } | |
1336 | } else { | |
1337 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1338 | if (if_is_operative(ifp)) { | |
1339 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1340 | zlog_debug( | |
1341 | "Intf %s(%u) has come UP", | |
1342 | name, ifp->ifindex); | |
1343 | if_up(ifp); | |
1344 | } | |
1345 | } | |
1346 | ||
1347 | /* Extract and save L2 interface information, take | |
1348 | * additional actions. */ | |
1349 | netlink_interface_update_l2info( | |
1350 | ifp, linkinfo[IFLA_INFO_DATA], 0); | |
1351 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave) | |
1352 | zebra_l2if_update_bridge_slave(ifp, | |
1353 | bridge_ifindex); | |
b53686c5 PG |
1354 | if_netlink_check_ifp_instance_consistency(RTM_NEWLINK, |
1355 | ifp, ns_id); | |
d62a17ae | 1356 | } |
1357 | } else { | |
1358 | /* Delete interface notification from kernel */ | |
1359 | if (ifp == NULL) { | |
1360 | zlog_warn("RTM_DELLINK for unknown interface %s(%u)", | |
1361 | name, ifi->ifi_index); | |
1362 | return 0; | |
1363 | } | |
1364 | ||
1365 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1366 | zlog_debug("RTM_DELLINK for %s(%u)", name, | |
1367 | ifp->ifindex); | |
1368 | ||
1369 | UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
1370 | ||
1371 | /* Special handling for bridge or VxLAN interfaces. */ | |
1372 | if (IS_ZEBRA_IF_BRIDGE(ifp)) | |
1373 | zebra_l2_bridge_del(ifp); | |
1374 | else if (IS_ZEBRA_IF_VXLAN(ifp)) | |
1375 | zebra_l2_vxlanif_del(ifp); | |
1376 | ||
1377 | if (!IS_ZEBRA_IF_VRF(ifp)) | |
1378 | if_delete_update(ifp); | |
b53686c5 PG |
1379 | if_netlink_check_ifp_instance_consistency(RTM_DELLINK, |
1380 | ifp, ns_id); | |
1fdc9eae | 1381 | } |
1382 | ||
d62a17ae | 1383 | return 0; |
1fdc9eae | 1384 | } |
718e3744 | 1385 | |
1386 | /* Interface information read by netlink. */ | |
d62a17ae | 1387 | void interface_list(struct zebra_ns *zns) |
718e3744 | 1388 | { |
d62a17ae | 1389 | interface_lookup_netlink(zns); |
718e3744 | 1390 | } |
ddfeb486 DL |
1391 | |
1392 | #endif /* GNU_LINUX */ |