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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; | |
0e4864ea PG |
262 | else if (strcmp(kind, "veth") == 0) |
263 | *zif_type = ZEBRA_IF_VETH; | |
6675513d | 264 | } |
52d8f0d8 | 265 | |
d62a17ae | 266 | #define parse_rtattr_nested(tb, max, rta) \ |
267 | netlink_parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)) | |
1fdc9eae | 268 | |
d62a17ae | 269 | static void netlink_vrf_change(struct nlmsghdr *h, struct rtattr *tb, |
270 | const char *name) | |
1fdc9eae | 271 | { |
d62a17ae | 272 | struct ifinfomsg *ifi; |
273 | struct rtattr *linkinfo[IFLA_INFO_MAX + 1]; | |
274 | struct rtattr *attr[IFLA_VRF_MAX + 1]; | |
275 | struct vrf *vrf; | |
276 | struct zebra_vrf *zvrf; | |
d7c0a89a | 277 | uint32_t nl_table_id; |
d62a17ae | 278 | |
279 | ifi = NLMSG_DATA(h); | |
280 | ||
281 | memset(linkinfo, 0, sizeof linkinfo); | |
282 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); | |
283 | ||
284 | if (!linkinfo[IFLA_INFO_DATA]) { | |
285 | if (IS_ZEBRA_DEBUG_KERNEL) | |
286 | zlog_debug( | |
287 | "%s: IFLA_INFO_DATA missing from VRF message: %s", | |
288 | __func__, name); | |
289 | return; | |
290 | } | |
291 | ||
292 | memset(attr, 0, sizeof attr); | |
293 | parse_rtattr_nested(attr, IFLA_VRF_MAX, linkinfo[IFLA_INFO_DATA]); | |
294 | if (!attr[IFLA_VRF_TABLE]) { | |
295 | if (IS_ZEBRA_DEBUG_KERNEL) | |
296 | zlog_debug( | |
297 | "%s: IFLA_VRF_TABLE missing from VRF message: %s", | |
298 | __func__, name); | |
299 | return; | |
1fdc9eae | 300 | } |
301 | ||
d7c0a89a | 302 | nl_table_id = *(uint32_t *)RTA_DATA(attr[IFLA_VRF_TABLE]); |
d62a17ae | 303 | |
304 | if (h->nlmsg_type == RTM_NEWLINK) { | |
305 | if (IS_ZEBRA_DEBUG_KERNEL) | |
306 | zlog_debug("RTM_NEWLINK for VRF %s(%u) table %u", name, | |
307 | ifi->ifi_index, nl_table_id); | |
308 | ||
309 | /* | |
310 | * vrf_get is implied creation if it does not exist | |
311 | */ | |
312 | vrf = vrf_get((vrf_id_t)ifi->ifi_index, | |
313 | name); // It would create vrf | |
314 | if (!vrf) { | |
af4c2728 | 315 | flog_err(LIB_ERR_INTERFACE, "VRF %s id %u not created", |
4d43f68a | 316 | name, ifi->ifi_index); |
d62a17ae | 317 | return; |
318 | } | |
319 | ||
d62a17ae | 320 | /* |
321 | * This is the only place that we get the actual kernel table_id | |
322 | * being used. We need it to set the table_id of the routes | |
323 | * we are passing to the kernel.... And to throw some totally | |
324 | * awesome parties. that too. | |
593406a1 DS |
325 | * |
326 | * At this point we *must* have a zvrf because the vrf_create | |
327 | * callback creates one. We *must* set the table id | |
328 | * before the vrf_enable because of( at the very least ) | |
329 | * static routes being delayed for installation until | |
330 | * during the vrf_enable callbacks. | |
d62a17ae | 331 | */ |
332 | zvrf = (struct zebra_vrf *)vrf->info; | |
333 | zvrf->table_id = nl_table_id; | |
593406a1 DS |
334 | |
335 | /* Enable the created VRF. */ | |
336 | if (!vrf_enable(vrf)) { | |
af4c2728 | 337 | flog_err(LIB_ERR_INTERFACE, |
4d43f68a DS |
338 | "Failed to enable VRF %s id %u", name, |
339 | ifi->ifi_index); | |
593406a1 DS |
340 | return; |
341 | } | |
342 | ||
d62a17ae | 343 | } else // h->nlmsg_type == RTM_DELLINK |
344 | { | |
345 | if (IS_ZEBRA_DEBUG_KERNEL) | |
346 | zlog_debug("RTM_DELLINK for VRF %s(%u)", name, | |
347 | ifi->ifi_index); | |
348 | ||
349 | vrf = vrf_lookup_by_id((vrf_id_t)ifi->ifi_index); | |
350 | ||
351 | if (!vrf) { | |
352 | zlog_warn("%s: vrf not found", __func__); | |
353 | return; | |
354 | } | |
355 | ||
356 | vrf_delete(vrf); | |
357 | } | |
1fdc9eae | 358 | } |
359 | ||
0268f30e | 360 | static int get_iflink_speed(struct interface *interface) |
535fe877 | 361 | { |
d62a17ae | 362 | struct ifreq ifdata; |
363 | struct ethtool_cmd ecmd; | |
364 | int sd; | |
365 | int rc; | |
0268f30e | 366 | const char *ifname = interface->name; |
d62a17ae | 367 | |
368 | /* initialize struct */ | |
369 | memset(&ifdata, 0, sizeof(ifdata)); | |
370 | ||
371 | /* set interface name */ | |
0af35d90 | 372 | strlcpy(ifdata.ifr_name, ifname, sizeof(ifdata.ifr_name)); |
d62a17ae | 373 | |
374 | /* initialize ethtool interface */ | |
375 | memset(&ecmd, 0, sizeof(ecmd)); | |
376 | ecmd.cmd = ETHTOOL_GSET; /* ETHTOOL_GLINK */ | |
ba85366a | 377 | ifdata.ifr_data = (caddr_t)&ecmd; |
d62a17ae | 378 | |
379 | /* use ioctl to get IP address of an interface */ | |
01b9e3fd DL |
380 | frr_elevate_privs(&zserv_privs) { |
381 | sd = vrf_socket(PF_INET, SOCK_DGRAM, IPPROTO_IP, | |
382 | interface->vrf_id, | |
383 | NULL); | |
384 | if (sd < 0) { | |
385 | if (IS_ZEBRA_DEBUG_KERNEL) | |
386 | zlog_debug("Failure to read interface %s speed: %d %s", | |
387 | ifname, errno, safe_strerror(errno)); | |
388 | return 0; | |
389 | } | |
d62a17ae | 390 | /* Get the current link state for the interface */ |
633fc9b1 DL |
391 | rc = vrf_ioctl(interface->vrf_id, sd, SIOCETHTOOL, |
392 | (char *)&ifdata); | |
01b9e3fd | 393 | } |
d62a17ae | 394 | if (rc < 0) { |
bd7d0299 DS |
395 | if (IS_ZEBRA_DEBUG_KERNEL) |
396 | zlog_debug( | |
397 | "IOCTL failure to read interface %s speed: %d %s", | |
398 | ifname, errno, safe_strerror(errno)); | |
d62a17ae | 399 | ecmd.speed_hi = 0; |
400 | ecmd.speed = 0; | |
401 | } | |
402 | ||
403 | close(sd); | |
404 | ||
405 | return (ecmd.speed_hi << 16) | ecmd.speed; | |
535fe877 DS |
406 | } |
407 | ||
dc7b3cae DS |
408 | uint32_t kernel_get_speed(struct interface *ifp) |
409 | { | |
0268f30e | 410 | return get_iflink_speed(ifp); |
dc7b3cae DS |
411 | } |
412 | ||
d62a17ae | 413 | static int netlink_extract_bridge_info(struct rtattr *link_data, |
414 | struct zebra_l2info_bridge *bridge_info) | |
6675513d | 415 | { |
d62a17ae | 416 | struct rtattr *attr[IFLA_BR_MAX + 1]; |
417 | ||
418 | memset(bridge_info, 0, sizeof(*bridge_info)); | |
419 | memset(attr, 0, sizeof attr); | |
420 | parse_rtattr_nested(attr, IFLA_BR_MAX, link_data); | |
421 | if (attr[IFLA_BR_VLAN_FILTERING]) | |
422 | bridge_info->vlan_aware = | |
d7c0a89a | 423 | *(uint8_t *)RTA_DATA(attr[IFLA_BR_VLAN_FILTERING]); |
d62a17ae | 424 | return 0; |
6675513d | 425 | } |
426 | ||
d62a17ae | 427 | static int netlink_extract_vlan_info(struct rtattr *link_data, |
428 | struct zebra_l2info_vlan *vlan_info) | |
6675513d | 429 | { |
d62a17ae | 430 | struct rtattr *attr[IFLA_VLAN_MAX + 1]; |
431 | vlanid_t vid_in_msg; | |
432 | ||
433 | memset(vlan_info, 0, sizeof(*vlan_info)); | |
434 | memset(attr, 0, sizeof attr); | |
435 | parse_rtattr_nested(attr, IFLA_VLAN_MAX, link_data); | |
436 | if (!attr[IFLA_VLAN_ID]) { | |
437 | if (IS_ZEBRA_DEBUG_KERNEL) | |
438 | zlog_debug("IFLA_VLAN_ID missing from VLAN IF message"); | |
439 | return -1; | |
440 | } | |
441 | ||
442 | vid_in_msg = *(vlanid_t *)RTA_DATA(attr[IFLA_VLAN_ID]); | |
443 | vlan_info->vid = vid_in_msg; | |
444 | return 0; | |
6675513d | 445 | } |
446 | ||
d62a17ae | 447 | static int netlink_extract_vxlan_info(struct rtattr *link_data, |
448 | struct zebra_l2info_vxlan *vxl_info) | |
6675513d | 449 | { |
d62a17ae | 450 | struct rtattr *attr[IFLA_VXLAN_MAX + 1]; |
451 | vni_t vni_in_msg; | |
452 | struct in_addr vtep_ip_in_msg; | |
453 | ||
454 | memset(vxl_info, 0, sizeof(*vxl_info)); | |
455 | memset(attr, 0, sizeof attr); | |
456 | parse_rtattr_nested(attr, IFLA_VXLAN_MAX, link_data); | |
457 | if (!attr[IFLA_VXLAN_ID]) { | |
458 | if (IS_ZEBRA_DEBUG_KERNEL) | |
459 | zlog_debug( | |
460 | "IFLA_VXLAN_ID missing from VXLAN IF message"); | |
461 | return -1; | |
462 | } | |
463 | ||
464 | vni_in_msg = *(vni_t *)RTA_DATA(attr[IFLA_VXLAN_ID]); | |
465 | vxl_info->vni = vni_in_msg; | |
466 | if (!attr[IFLA_VXLAN_LOCAL]) { | |
467 | if (IS_ZEBRA_DEBUG_KERNEL) | |
468 | zlog_debug( | |
469 | "IFLA_VXLAN_LOCAL missing from VXLAN IF message"); | |
470 | } else { | |
471 | vtep_ip_in_msg = | |
472 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_LOCAL]); | |
473 | vxl_info->vtep_ip = vtep_ip_in_msg; | |
474 | } | |
475 | ||
476 | return 0; | |
6675513d | 477 | } |
478 | ||
479 | /* | |
480 | * Extract and save L2 params (of interest) for an interface. When a | |
481 | * bridge interface is added or updated, take further actions to map | |
482 | * its members. Likewise, for VxLAN interface. | |
483 | */ | |
d62a17ae | 484 | static void netlink_interface_update_l2info(struct interface *ifp, |
485 | struct rtattr *link_data, int add) | |
6675513d | 486 | { |
d62a17ae | 487 | if (!link_data) |
488 | return; | |
489 | ||
490 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
491 | struct zebra_l2info_bridge bridge_info; | |
492 | ||
493 | netlink_extract_bridge_info(link_data, &bridge_info); | |
494 | zebra_l2_bridge_add_update(ifp, &bridge_info, add); | |
495 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
496 | struct zebra_l2info_vlan vlan_info; | |
497 | ||
498 | netlink_extract_vlan_info(link_data, &vlan_info); | |
499 | zebra_l2_vlanif_update(ifp, &vlan_info); | |
500 | } else if (IS_ZEBRA_IF_VXLAN(ifp)) { | |
501 | struct zebra_l2info_vxlan vxlan_info; | |
502 | ||
503 | netlink_extract_vxlan_info(link_data, &vxlan_info); | |
504 | zebra_l2_vxlanif_add_update(ifp, &vxlan_info, add); | |
505 | } | |
6675513d | 506 | } |
507 | ||
d62a17ae | 508 | static int netlink_bridge_interface(struct nlmsghdr *h, int len, ns_id_t ns_id, |
509 | int startup) | |
6675513d | 510 | { |
d62a17ae | 511 | char *name = NULL; |
512 | struct ifinfomsg *ifi; | |
513 | struct rtattr *tb[IFLA_MAX + 1]; | |
514 | struct interface *ifp; | |
515 | struct rtattr *aftb[IFLA_BRIDGE_MAX + 1]; | |
516 | struct { | |
d7c0a89a QY |
517 | uint16_t flags; |
518 | uint16_t vid; | |
d62a17ae | 519 | } * vinfo; |
520 | vlanid_t access_vlan; | |
521 | ||
522 | /* Fetch name and ifindex */ | |
523 | ifi = NLMSG_DATA(h); | |
524 | memset(tb, 0, sizeof tb); | |
525 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
526 | ||
527 | if (tb[IFLA_IFNAME] == NULL) | |
528 | return -1; | |
529 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
530 | ||
531 | /* The interface should already be known, if not discard. */ | |
532 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(ns_id), ifi->ifi_index); | |
533 | if (!ifp) { | |
534 | zlog_warn("Cannot find bridge IF %s(%u)", name, ifi->ifi_index); | |
535 | return 0; | |
536 | } | |
537 | if (!IS_ZEBRA_IF_VXLAN(ifp)) | |
538 | return 0; | |
539 | ||
540 | /* We are only interested in the access VLAN i.e., AF_SPEC */ | |
541 | if (!tb[IFLA_AF_SPEC]) | |
542 | return 0; | |
543 | ||
544 | /* There is a 1-to-1 mapping of VLAN to VxLAN - hence | |
545 | * only 1 access VLAN is accepted. | |
546 | */ | |
547 | memset(aftb, 0, sizeof aftb); | |
548 | parse_rtattr_nested(aftb, IFLA_BRIDGE_MAX, tb[IFLA_AF_SPEC]); | |
549 | if (!aftb[IFLA_BRIDGE_VLAN_INFO]) | |
550 | return 0; | |
551 | ||
552 | vinfo = RTA_DATA(aftb[IFLA_BRIDGE_VLAN_INFO]); | |
553 | if (!(vinfo->flags & BRIDGE_VLAN_INFO_PVID)) | |
554 | return 0; | |
555 | ||
556 | access_vlan = (vlanid_t)vinfo->vid; | |
557 | if (IS_ZEBRA_DEBUG_KERNEL) | |
558 | zlog_debug("Access VLAN %u for VxLAN IF %s(%u)", access_vlan, | |
559 | name, ifi->ifi_index); | |
560 | zebra_l2_vxlanif_update_access_vlan(ifp, access_vlan); | |
561 | return 0; | |
6675513d | 562 | } |
563 | ||
2414abd3 DS |
564 | /* |
565 | * Called from interface_lookup_netlink(). This function is only used | |
566 | * during bootstrap. | |
567 | */ | |
568 | static int netlink_interface(struct nlmsghdr *h, ns_id_t ns_id, int startup) | |
1fdc9eae | 569 | { |
d62a17ae | 570 | int len; |
571 | struct ifinfomsg *ifi; | |
572 | struct rtattr *tb[IFLA_MAX + 1]; | |
573 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
574 | struct interface *ifp; | |
575 | char *name = NULL; | |
576 | char *kind = NULL; | |
48884c6b | 577 | char *desc = NULL; |
d62a17ae | 578 | char *slave_kind = NULL; |
579 | struct zebra_ns *zns; | |
580 | vrf_id_t vrf_id = VRF_DEFAULT; | |
581 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
582 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
583 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
584 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
585 | ||
586 | zns = zebra_ns_lookup(ns_id); | |
587 | ifi = NLMSG_DATA(h); | |
588 | ||
589 | if (h->nlmsg_type != RTM_NEWLINK) | |
590 | return 0; | |
591 | ||
592 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
9bdf8618 DS |
593 | if (len < 0) { |
594 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
595 | __PRETTY_FUNCTION__, | |
596 | h->nlmsg_len, | |
597 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 598 | return -1; |
9bdf8618 | 599 | } |
d62a17ae | 600 | |
601 | /* We are interested in some AF_BRIDGE notifications. */ | |
602 | if (ifi->ifi_family == AF_BRIDGE) | |
603 | return netlink_bridge_interface(h, len, ns_id, startup); | |
604 | ||
605 | /* Looking up interface name. */ | |
606 | memset(tb, 0, sizeof tb); | |
607 | memset(linkinfo, 0, sizeof linkinfo); | |
608 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 609 | |
d62a17ae | 610 | /* check for wireless messages to ignore */ |
611 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
612 | if (IS_ZEBRA_DEBUG_KERNEL) | |
613 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
614 | __func__); | |
615 | return 0; | |
616 | } | |
1fdc9eae | 617 | |
d62a17ae | 618 | if (tb[IFLA_IFNAME] == NULL) |
619 | return -1; | |
620 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 621 | |
48884c6b DS |
622 | if (tb[IFLA_IFALIAS]) |
623 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
624 | ||
d62a17ae | 625 | if (tb[IFLA_LINKINFO]) { |
626 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 627 | |
d62a17ae | 628 | if (linkinfo[IFLA_INFO_KIND]) |
629 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 630 | |
d62a17ae | 631 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
632 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 633 | |
d62a17ae | 634 | netlink_determine_zebra_iftype(kind, &zif_type); |
635 | } | |
636 | ||
637 | /* If VRF, create the VRF structure itself. */ | |
78dd30b2 | 638 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 639 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
640 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
641 | } | |
642 | ||
643 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
644 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
645 | && !vrf_is_backend_netns()) { | |
d62a17ae | 646 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 647 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 648 | } else if (slave_kind && (strcmp(slave_kind, "bridge") == 0)) { |
649 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
650 | bridge_ifindex = | |
651 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
652 | } else | |
653 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
654 | } | |
78dd30b2 PG |
655 | if (vrf_is_backend_netns()) |
656 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 657 | |
658 | /* If linking to another interface, note it. */ | |
659 | if (tb[IFLA_LINK]) | |
660 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
661 | ||
662 | /* Add interface. */ | |
bcc24579 | 663 | ifp = if_get_by_name(name, vrf_id, 0); |
d62a17ae | 664 | set_ifindex(ifp, ifi->ifi_index, zns); |
665 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d62a17ae | 666 | ifp->mtu6 = ifp->mtu = *(uint32_t *)RTA_DATA(tb[IFLA_MTU]); |
667 | ifp->metric = 0; | |
0268f30e | 668 | ifp->speed = get_iflink_speed(ifp); |
d62a17ae | 669 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; |
670 | ||
48884c6b DS |
671 | if (desc) |
672 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
673 | ||
d62a17ae | 674 | /* Set zebra interface type */ |
675 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
676 | if (IS_ZEBRA_IF_VRF(ifp)) |
677 | SET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 678 | |
679 | /* Update link. */ | |
680c278f | 680 | zebra_if_update_link(ifp, link_ifindex, ns_id); |
d62a17ae | 681 | |
682 | /* Hardware type and address. */ | |
683 | ifp->ll_type = netlink_to_zebra_link_type(ifi->ifi_type); | |
684 | netlink_interface_update_hw_addr(tb, ifp); | |
685 | ||
686 | if_add_update(ifp); | |
687 | ||
688 | /* Extract and save L2 interface information, take additional actions. | |
689 | */ | |
690 | netlink_interface_update_l2info(ifp, linkinfo[IFLA_INFO_DATA], 1); | |
691 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
692 | zebra_l2if_update_bridge_slave(ifp, bridge_ifindex); | |
693 | ||
694 | return 0; | |
1fdc9eae | 695 | } |
696 | ||
289602d7 | 697 | /* Request for specific interface or address information from the kernel */ |
d62a17ae | 698 | static int netlink_request_intf_addr(struct zebra_ns *zns, int family, int type, |
d7c0a89a | 699 | uint32_t filter_mask) |
289602d7 | 700 | { |
d62a17ae | 701 | struct { |
702 | struct nlmsghdr n; | |
703 | struct ifinfomsg ifm; | |
704 | char buf[256]; | |
705 | } req; | |
706 | ||
707 | /* Form the request, specifying filter (rtattr) if needed. */ | |
708 | memset(&req, 0, sizeof(req)); | |
709 | req.n.nlmsg_type = type; | |
710 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
711 | req.ifm.ifi_family = family; | |
712 | ||
713 | /* Include filter, if specified. */ | |
714 | if (filter_mask) | |
715 | addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filter_mask); | |
716 | ||
717 | return netlink_request(&zns->netlink_cmd, &req.n); | |
289602d7 | 718 | } |
719 | ||
1fdc9eae | 720 | /* Interface lookup by netlink socket. */ |
d62a17ae | 721 | int interface_lookup_netlink(struct zebra_ns *zns) |
1fdc9eae | 722 | { |
d62a17ae | 723 | int ret; |
724 | ||
725 | /* Get interface information. */ | |
726 | ret = netlink_request_intf_addr(zns, AF_PACKET, RTM_GETLINK, 0); | |
727 | if (ret < 0) | |
728 | return ret; | |
729 | ret = netlink_parse_info(netlink_interface, &zns->netlink_cmd, zns, 0, | |
730 | 1); | |
731 | if (ret < 0) | |
732 | return ret; | |
733 | ||
734 | /* Get interface information - for bridge interfaces. */ | |
735 | ret = netlink_request_intf_addr(zns, AF_BRIDGE, RTM_GETLINK, | |
736 | RTEXT_FILTER_BRVLAN); | |
737 | if (ret < 0) | |
738 | return ret; | |
739 | ret = netlink_parse_info(netlink_interface, &zns->netlink_cmd, zns, 0, | |
740 | 0); | |
741 | if (ret < 0) | |
742 | return ret; | |
743 | ||
744 | /* Get interface information - for bridge interfaces. */ | |
745 | ret = netlink_request_intf_addr(zns, AF_BRIDGE, RTM_GETLINK, | |
746 | RTEXT_FILTER_BRVLAN); | |
747 | if (ret < 0) | |
748 | return ret; | |
749 | ret = netlink_parse_info(netlink_interface, &zns->netlink_cmd, zns, 0, | |
750 | 0); | |
751 | if (ret < 0) | |
752 | return ret; | |
753 | ||
754 | /* Get IPv4 address of the interfaces. */ | |
755 | ret = netlink_request_intf_addr(zns, AF_INET, RTM_GETADDR, 0); | |
756 | if (ret < 0) | |
757 | return ret; | |
758 | ret = netlink_parse_info(netlink_interface_addr, &zns->netlink_cmd, zns, | |
759 | 0, 1); | |
760 | if (ret < 0) | |
761 | return ret; | |
762 | ||
763 | /* Get IPv6 address of the interfaces. */ | |
764 | ret = netlink_request_intf_addr(zns, AF_INET6, RTM_GETADDR, 0); | |
765 | if (ret < 0) | |
766 | return ret; | |
767 | ret = netlink_parse_info(netlink_interface_addr, &zns->netlink_cmd, zns, | |
768 | 0, 1); | |
769 | if (ret < 0) | |
770 | return ret; | |
771 | ||
772 | return 0; | |
1fdc9eae | 773 | } |
774 | ||
e0ae31b8 DS |
775 | int kernel_interface_set_master(struct interface *master, |
776 | struct interface *slave) | |
777 | { | |
778 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
779 | ||
780 | struct { | |
781 | struct nlmsghdr n; | |
782 | struct ifinfomsg ifa; | |
783 | char buf[NL_PKT_BUF_SIZE]; | |
784 | } req; | |
785 | ||
786 | memset(&req, 0, sizeof req); | |
787 | ||
788 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
789 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
790 | req.n.nlmsg_type = RTM_SETLINK; | |
791 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
792 | ||
793 | req.ifa.ifi_index = slave->ifindex; | |
794 | ||
795 | addattr_l(&req.n, sizeof req, IFLA_MASTER, &master->ifindex, 4); | |
796 | addattr_l(&req.n, sizeof req, IFLA_LINK, &slave->ifindex, 4); | |
797 | ||
798 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
799 | 0); | |
800 | } | |
801 | ||
1fdc9eae | 802 | /* Interface address modification. */ |
d62a17ae | 803 | static int netlink_address(int cmd, int family, struct interface *ifp, |
804 | struct connected *ifc) | |
1fdc9eae | 805 | { |
d62a17ae | 806 | int bytelen; |
807 | struct prefix *p; | |
1fdc9eae | 808 | |
d62a17ae | 809 | struct { |
810 | struct nlmsghdr n; | |
811 | struct ifaddrmsg ifa; | |
812 | char buf[NL_PKT_BUF_SIZE]; | |
813 | } req; | |
1fdc9eae | 814 | |
fe533c56 | 815 | struct zebra_ns *zns; |
1fdc9eae | 816 | |
fe533c56 PG |
817 | if (vrf_is_backend_netns()) |
818 | zns = zebra_ns_lookup((ns_id_t)ifp->vrf_id); | |
819 | else | |
820 | zns = zebra_ns_lookup(NS_DEFAULT); | |
d62a17ae | 821 | p = ifc->address; |
822 | memset(&req, 0, sizeof req - NL_PKT_BUF_SIZE); | |
1fdc9eae | 823 | |
d62a17ae | 824 | bytelen = (family == AF_INET ? 4 : 16); |
1fdc9eae | 825 | |
d62a17ae | 826 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)); |
827 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
828 | req.n.nlmsg_type = cmd; | |
829 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
a55ba23f | 830 | |
d62a17ae | 831 | req.ifa.ifa_family = family; |
1fdc9eae | 832 | |
d62a17ae | 833 | req.ifa.ifa_index = ifp->ifindex; |
1fdc9eae | 834 | |
d62a17ae | 835 | addattr_l(&req.n, sizeof req, IFA_LOCAL, &p->u.prefix, bytelen); |
1fdc9eae | 836 | |
e8d19a05 DL |
837 | if (family == AF_INET) { |
838 | if (CONNECTED_PEER(ifc)) { | |
839 | p = ifc->destination; | |
60466a63 QY |
840 | addattr_l(&req.n, sizeof req, IFA_ADDRESS, &p->u.prefix, |
841 | bytelen); | |
e8d19a05 | 842 | } else if (cmd == RTM_NEWADDR && ifc->destination) { |
d62a17ae | 843 | p = ifc->destination; |
844 | addattr_l(&req.n, sizeof req, IFA_BROADCAST, | |
845 | &p->u.prefix, bytelen); | |
846 | } | |
847 | } | |
1fdc9eae | 848 | |
e8d19a05 DL |
849 | /* p is now either ifc->address or ifc->destination */ |
850 | req.ifa.ifa_prefixlen = p->prefixlen; | |
851 | ||
d62a17ae | 852 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) |
853 | SET_FLAG(req.ifa.ifa_flags, IFA_F_SECONDARY); | |
1fdc9eae | 854 | |
d62a17ae | 855 | if (ifc->label) |
856 | addattr_l(&req.n, sizeof req, IFA_LABEL, ifc->label, | |
857 | strlen(ifc->label) + 1); | |
1fdc9eae | 858 | |
d62a17ae | 859 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, |
860 | 0); | |
1fdc9eae | 861 | } |
862 | ||
d62a17ae | 863 | int kernel_address_add_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 864 | { |
d62a17ae | 865 | return netlink_address(RTM_NEWADDR, AF_INET, ifp, ifc); |
1fdc9eae | 866 | } |
867 | ||
d62a17ae | 868 | int kernel_address_delete_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 869 | { |
d62a17ae | 870 | return netlink_address(RTM_DELADDR, AF_INET, ifp, ifc); |
1fdc9eae | 871 | } |
872 | ||
996c9314 | 873 | int kernel_address_add_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 874 | { |
996c9314 | 875 | return netlink_address(RTM_NEWADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
876 | } |
877 | ||
996c9314 | 878 | int kernel_address_delete_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 879 | { |
996c9314 | 880 | return netlink_address(RTM_DELADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
881 | } |
882 | ||
2414abd3 | 883 | int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 884 | { |
d62a17ae | 885 | int len; |
886 | struct ifaddrmsg *ifa; | |
887 | struct rtattr *tb[IFA_MAX + 1]; | |
888 | struct interface *ifp; | |
889 | void *addr; | |
890 | void *broad; | |
d7c0a89a | 891 | uint8_t flags = 0; |
d62a17ae | 892 | char *label = NULL; |
893 | struct zebra_ns *zns; | |
894 | ||
895 | zns = zebra_ns_lookup(ns_id); | |
896 | ifa = NLMSG_DATA(h); | |
897 | ||
8a1b681c SW |
898 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { |
899 | zlog_warn( | |
81227874 | 900 | "Invalid address family: %u received from kernel interface addr change: %u", |
8a1b681c | 901 | ifa->ifa_family, h->nlmsg_type); |
d62a17ae | 902 | return 0; |
8a1b681c | 903 | } |
d62a17ae | 904 | |
905 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
906 | return 0; | |
907 | ||
908 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
9bdf8618 DS |
909 | if (len < 0) { |
910 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
911 | __PRETTY_FUNCTION__, | |
912 | h->nlmsg_len, | |
913 | (size_t)NLMSG_LENGTH(sizeof(struct ifaddrmsg))); | |
d62a17ae | 914 | return -1; |
9bdf8618 | 915 | } |
d62a17ae | 916 | |
917 | memset(tb, 0, sizeof tb); | |
918 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); | |
919 | ||
920 | ifp = if_lookup_by_index_per_ns(zns, ifa->ifa_index); | |
921 | if (ifp == NULL) { | |
af4c2728 | 922 | flog_err( |
4d43f68a | 923 | LIB_ERR_INTERFACE, |
d62a17ae | 924 | "netlink_interface_addr can't find interface by index %d", |
925 | ifa->ifa_index); | |
926 | return -1; | |
927 | } | |
928 | ||
929 | if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */ | |
930 | { | |
931 | char buf[BUFSIZ]; | |
932 | zlog_debug("netlink_interface_addr %s %s flags 0x%x:", | |
933 | nl_msg_type_to_str(h->nlmsg_type), ifp->name, | |
934 | ifa->ifa_flags); | |
935 | if (tb[IFA_LOCAL]) | |
936 | zlog_debug(" IFA_LOCAL %s/%d", | |
937 | inet_ntop(ifa->ifa_family, | |
938 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
939 | BUFSIZ), | |
940 | ifa->ifa_prefixlen); | |
941 | if (tb[IFA_ADDRESS]) | |
942 | zlog_debug(" IFA_ADDRESS %s/%d", | |
943 | inet_ntop(ifa->ifa_family, | |
944 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
945 | BUFSIZ), | |
946 | ifa->ifa_prefixlen); | |
947 | if (tb[IFA_BROADCAST]) | |
948 | zlog_debug(" IFA_BROADCAST %s/%d", | |
949 | inet_ntop(ifa->ifa_family, | |
950 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
951 | BUFSIZ), | |
952 | ifa->ifa_prefixlen); | |
953 | if (tb[IFA_LABEL] && strcmp(ifp->name, RTA_DATA(tb[IFA_LABEL]))) | |
954 | zlog_debug(" IFA_LABEL %s", | |
955 | (char *)RTA_DATA(tb[IFA_LABEL])); | |
956 | ||
957 | if (tb[IFA_CACHEINFO]) { | |
958 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
959 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
960 | ci->ifa_prefered, ci->ifa_valid); | |
961 | } | |
962 | } | |
963 | ||
964 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
965 | if (tb[IFA_LOCAL] == NULL) | |
966 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
967 | if (tb[IFA_ADDRESS] == NULL) | |
968 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
969 | ||
970 | /* local interface address */ | |
971 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
972 | ||
973 | /* is there a peer address? */ | |
974 | if (tb[IFA_ADDRESS] | |
975 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
976 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
977 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
978 | SET_FLAG(flags, ZEBRA_IFA_PEER); | |
979 | } else | |
980 | /* seeking a broadcast address */ | |
981 | broad = (tb[IFA_BROADCAST] ? RTA_DATA(tb[IFA_BROADCAST]) | |
982 | : NULL); | |
983 | ||
984 | /* addr is primary key, SOL if we don't have one */ | |
985 | if (addr == NULL) { | |
986 | zlog_debug("%s: NULL address", __func__); | |
987 | return -1; | |
988 | } | |
989 | ||
990 | /* Flags. */ | |
991 | if (ifa->ifa_flags & IFA_F_SECONDARY) | |
992 | SET_FLAG(flags, ZEBRA_IFA_SECONDARY); | |
993 | ||
994 | /* Label */ | |
995 | if (tb[IFA_LABEL]) | |
996 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
997 | ||
2e1cc436 | 998 | if (label && strcmp(ifp->name, label) == 0) |
d62a17ae | 999 | label = NULL; |
1000 | ||
1001 | /* Register interface address to the interface. */ | |
1002 | if (ifa->ifa_family == AF_INET) { | |
930571d2 | 1003 | if (ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { |
e17d9b2d | 1004 | zlog_err( |
75829703 | 1005 | "Invalid prefix length: %u received from kernel interface addr change: %u", |
930571d2 | 1006 | ifa->ifa_prefixlen, h->nlmsg_type); |
e17d9b2d | 1007 | return -1; |
930571d2 | 1008 | } |
d62a17ae | 1009 | if (h->nlmsg_type == RTM_NEWADDR) |
1010 | connected_add_ipv4(ifp, flags, (struct in_addr *)addr, | |
1011 | ifa->ifa_prefixlen, | |
1012 | (struct in_addr *)broad, label); | |
1013 | else | |
1014 | connected_delete_ipv4( | |
1015 | ifp, flags, (struct in_addr *)addr, | |
1016 | ifa->ifa_prefixlen, (struct in_addr *)broad); | |
1017 | } | |
1018 | if (ifa->ifa_family == AF_INET6) { | |
930571d2 | 1019 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { |
e17d9b2d | 1020 | zlog_err( |
75829703 | 1021 | "Invalid prefix length: %u received from kernel interface addr change: %u", |
930571d2 | 1022 | ifa->ifa_prefixlen, h->nlmsg_type); |
e17d9b2d | 1023 | return -1; |
930571d2 | 1024 | } |
d62a17ae | 1025 | if (h->nlmsg_type == RTM_NEWADDR) { |
1026 | /* Only consider valid addresses; we'll not get a | |
1027 | * notification from | |
1028 | * the kernel till IPv6 DAD has completed, but at init | |
1029 | * time, Quagga | |
1030 | * does query for and will receive all addresses. | |
1031 | */ | |
1032 | if (!(ifa->ifa_flags | |
1033 | & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) | |
60466a63 QY |
1034 | connected_add_ipv6(ifp, flags, |
1035 | (struct in6_addr *)addr, | |
60c0687a | 1036 | (struct in6_addr *)broad, |
60466a63 | 1037 | ifa->ifa_prefixlen, label); |
d62a17ae | 1038 | } else |
1039 | connected_delete_ipv6(ifp, (struct in6_addr *)addr, | |
60c0687a | 1040 | (struct in6_addr *)broad, |
608105a7 | 1041 | ifa->ifa_prefixlen); |
d62a17ae | 1042 | } |
1043 | ||
1044 | return 0; | |
1fdc9eae | 1045 | } |
1046 | ||
b53686c5 PG |
1047 | /* helper function called by if_netlink_change |
1048 | * to delete interfaces in case the interface moved | |
1049 | * to an other netns | |
1050 | */ | |
1051 | static void if_netlink_check_ifp_instance_consistency(uint16_t cmd, | |
1052 | struct interface *ifp, | |
1053 | ns_id_t ns_id) | |
1054 | { | |
9373219c | 1055 | struct interface *other_ifp; |
b53686c5 PG |
1056 | |
1057 | /* | |
1058 | * look if interface name is also found on other netns | |
1059 | * - only if vrf backend is netns | |
1060 | * - do not concern lo interface | |
1061 | * - then remove previous one | |
1062 | * - for new link case, check found interface is not active | |
1063 | */ | |
1064 | if (!vrf_is_backend_netns() || | |
1065 | !strcmp(ifp->name, "lo")) | |
1066 | return; | |
9373219c PG |
1067 | other_ifp = if_lookup_by_name_not_ns(ns_id, ifp->name); |
1068 | if (!other_ifp) | |
b53686c5 | 1069 | return; |
5efbf310 PG |
1070 | /* because previous interface may be inactive, |
1071 | * interface is moved back to default vrf | |
1072 | * then one may find the same pointer; ignore | |
1073 | */ | |
1074 | if (other_ifp == ifp) | |
1075 | return; | |
b53686c5 | 1076 | if ((cmd == RTM_NEWLINK) |
9373219c | 1077 | && (CHECK_FLAG(other_ifp->status, ZEBRA_INTERFACE_ACTIVE))) |
b53686c5 | 1078 | return; |
9373219c PG |
1079 | if (IS_ZEBRA_DEBUG_KERNEL && cmd == RTM_NEWLINK) { |
1080 | zlog_debug("RTM_NEWLINK %s(%u, VRF %u) replaces %s(%u, VRF %u)\n", | |
1081 | ifp->name, | |
1082 | ifp->ifindex, | |
1083 | ifp->vrf_id, | |
1084 | other_ifp->name, | |
1085 | other_ifp->ifindex, | |
1086 | other_ifp->vrf_id); | |
1087 | } else if (IS_ZEBRA_DEBUG_KERNEL && cmd == RTM_DELLINK) { | |
1088 | zlog_debug("RTM_DELLINK %s(%u, VRF %u) is replaced by %s(%u, VRF %u)\n", | |
b53686c5 | 1089 | ifp->name, |
9373219c PG |
1090 | ifp->ifindex, |
1091 | ifp->vrf_id, | |
1092 | other_ifp->name, | |
1093 | other_ifp->ifindex, | |
1094 | other_ifp->vrf_id); | |
1095 | } | |
b53686c5 PG |
1096 | /* the found interface replaces the current one |
1097 | * remove it | |
1098 | */ | |
1099 | if (cmd == RTM_DELLINK) | |
1100 | if_delete(ifp); | |
1101 | else | |
9373219c | 1102 | if_delete(other_ifp); |
b53686c5 PG |
1103 | /* the found interface is replaced by the current one |
1104 | * suppress it | |
1105 | */ | |
1106 | } | |
1107 | ||
2414abd3 | 1108 | int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1109 | { |
d62a17ae | 1110 | int len; |
1111 | struct ifinfomsg *ifi; | |
1112 | struct rtattr *tb[IFLA_MAX + 1]; | |
1113 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1114 | struct interface *ifp; | |
1115 | char *name = NULL; | |
1116 | char *kind = NULL; | |
48884c6b | 1117 | char *desc = NULL; |
d62a17ae | 1118 | char *slave_kind = NULL; |
1119 | struct zebra_ns *zns; | |
1120 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1121 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
1122 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
1123 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
1124 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
1125 | ||
1126 | ||
1127 | zns = zebra_ns_lookup(ns_id); | |
1128 | ifi = NLMSG_DATA(h); | |
1129 | ||
fe533c56 | 1130 | /* assume if not default zns, then new VRF */ |
d62a17ae | 1131 | if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) { |
1132 | /* If this is not link add/delete message so print warning. */ | |
1133 | zlog_warn("netlink_link_change: wrong kernel message %d", | |
1134 | h->nlmsg_type); | |
1135 | return 0; | |
1136 | } | |
1137 | ||
8a1b681c SW |
1138 | if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE |
1139 | || ifi->ifi_family == AF_INET6)) { | |
1140 | zlog_warn( | |
81227874 | 1141 | "Invalid address family: %u received from kernel link change: %u", |
8a1b681c SW |
1142 | ifi->ifi_family, h->nlmsg_type); |
1143 | return 0; | |
1144 | } | |
1145 | ||
d62a17ae | 1146 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
9bdf8618 DS |
1147 | if (len < 0) { |
1148 | zlog_err("%s: Message received from netlink is of a broken size %d %zu", | |
1149 | __PRETTY_FUNCTION__, h->nlmsg_len, | |
1150 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 1151 | return -1; |
9bdf8618 | 1152 | } |
d62a17ae | 1153 | |
1154 | /* We are interested in some AF_BRIDGE notifications. */ | |
1155 | if (ifi->ifi_family == AF_BRIDGE) | |
1156 | return netlink_bridge_interface(h, len, ns_id, startup); | |
1157 | ||
1158 | /* Looking up interface name. */ | |
1159 | memset(tb, 0, sizeof tb); | |
1160 | memset(linkinfo, 0, sizeof linkinfo); | |
1161 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 1162 | |
d62a17ae | 1163 | /* check for wireless messages to ignore */ |
1164 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
1165 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1166 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
1167 | __func__); | |
1168 | return 0; | |
1169 | } | |
1fdc9eae | 1170 | |
d62a17ae | 1171 | if (tb[IFLA_IFNAME] == NULL) |
1172 | return -1; | |
1173 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 1174 | |
d62a17ae | 1175 | if (tb[IFLA_LINKINFO]) { |
1176 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 1177 | |
d62a17ae | 1178 | if (linkinfo[IFLA_INFO_KIND]) |
1179 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 1180 | |
d62a17ae | 1181 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
1182 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 1183 | |
d62a17ae | 1184 | netlink_determine_zebra_iftype(kind, &zif_type); |
1185 | } | |
6675513d | 1186 | |
d62a17ae | 1187 | /* If linking to another interface, note it. */ |
1188 | if (tb[IFLA_LINK]) | |
1189 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1fdc9eae | 1190 | |
48884c6b DS |
1191 | if (tb[IFLA_IFALIAS]) { |
1192 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
1193 | } | |
1194 | ||
d62a17ae | 1195 | /* If VRF, create or update the VRF structure itself. */ |
78dd30b2 | 1196 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 1197 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
1198 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
1199 | } | |
1fdc9eae | 1200 | |
d62a17ae | 1201 | /* See if interface is present. */ |
1202 | ifp = if_lookup_by_name_per_ns(zns, name); | |
1203 | ||
48884c6b DS |
1204 | if (ifp) { |
1205 | if (ifp->desc) | |
1206 | XFREE(MTYPE_TMP, ifp->desc); | |
1207 | if (desc) | |
1208 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
1209 | } | |
1210 | ||
d62a17ae | 1211 | if (h->nlmsg_type == RTM_NEWLINK) { |
1212 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
1213 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
1214 | && !vrf_is_backend_netns()) { | |
d62a17ae | 1215 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 1216 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 1217 | } else if (slave_kind |
1218 | && (strcmp(slave_kind, "bridge") == 0)) { | |
1219 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
1220 | bridge_ifindex = | |
1221 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
1222 | } else | |
1223 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
1224 | } | |
fe533c56 PG |
1225 | if (vrf_is_backend_netns()) |
1226 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 1227 | if (ifp == NULL |
1228 | || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) { | |
1229 | /* Add interface notification from kernel */ | |
1230 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1231 | zlog_debug( | |
1232 | "RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d " | |
1233 | "sl_type %d master %u flags 0x%x", | |
1234 | name, ifi->ifi_index, vrf_id, zif_type, | |
1235 | zif_slave_type, bridge_ifindex, | |
1236 | ifi->ifi_flags); | |
1237 | ||
1238 | if (ifp == NULL) { | |
1239 | /* unknown interface */ | |
bcc24579 | 1240 | ifp = if_get_by_name(name, vrf_id, 0); |
d62a17ae | 1241 | } else { |
1242 | /* pre-configured interface, learnt now */ | |
1243 | if (ifp->vrf_id != vrf_id) | |
1244 | if_update_to_new_vrf(ifp, vrf_id); | |
1245 | } | |
1246 | ||
1247 | /* Update interface information. */ | |
1248 | set_ifindex(ifp, ifi->ifi_index, zns); | |
1249 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d23b983b SW |
1250 | if (!tb[IFLA_MTU]) { |
1251 | zlog_warn( | |
1252 | "RTM_NEWLINK for interface %s(%u) without MTU set", | |
1253 | name, ifi->ifi_index); | |
1254 | return 0; | |
1255 | } | |
d62a17ae | 1256 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1257 | ifp->metric = 0; | |
1258 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
1259 | ||
1260 | /* Set interface type */ | |
1261 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
1262 | if (IS_ZEBRA_IF_VRF(ifp)) |
1263 | SET_FLAG(ifp->status, | |
1264 | ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 1265 | |
1266 | /* Update link. */ | |
680c278f | 1267 | zebra_if_update_link(ifp, link_ifindex, ns_id); |
d62a17ae | 1268 | |
1269 | netlink_interface_update_hw_addr(tb, ifp); | |
1270 | ||
1271 | /* Inform clients, install any configured addresses. */ | |
1272 | if_add_update(ifp); | |
1273 | ||
1274 | /* Extract and save L2 interface information, take | |
1275 | * additional actions. */ | |
1276 | netlink_interface_update_l2info( | |
1277 | ifp, linkinfo[IFLA_INFO_DATA], 1); | |
1278 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
1279 | zebra_l2if_update_bridge_slave(ifp, | |
1280 | bridge_ifindex); | |
b53686c5 PG |
1281 | if_netlink_check_ifp_instance_consistency(RTM_NEWLINK, |
1282 | ifp, ns_id); | |
d62a17ae | 1283 | } else if (ifp->vrf_id != vrf_id) { |
1284 | /* VRF change for an interface. */ | |
1285 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1286 | zlog_debug( | |
1287 | "RTM_NEWLINK vrf-change for %s(%u) " | |
1288 | "vrf_id %u -> %u flags 0x%x", | |
1289 | name, ifp->ifindex, ifp->vrf_id, vrf_id, | |
1290 | ifi->ifi_flags); | |
1291 | ||
1292 | if_handle_vrf_change(ifp, vrf_id); | |
1293 | } else { | |
1294 | int was_bridge_slave; | |
1295 | ||
1296 | /* Interface update. */ | |
1297 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1298 | zlog_debug( | |
1299 | "RTM_NEWLINK update for %s(%u) " | |
1300 | "sl_type %d master %u flags 0x%x", | |
1301 | name, ifp->ifindex, zif_slave_type, | |
1302 | bridge_ifindex, ifi->ifi_flags); | |
1303 | ||
1304 | set_ifindex(ifp, ifi->ifi_index, zns); | |
d23b983b SW |
1305 | if (!tb[IFLA_MTU]) { |
1306 | zlog_warn( | |
1307 | "RTM_NEWLINK for interface %s(%u) without MTU set", | |
1308 | name, ifi->ifi_index); | |
1309 | return 0; | |
1310 | } | |
d62a17ae | 1311 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1312 | ifp->metric = 0; | |
1313 | ||
1314 | /* Update interface type - NOTE: Only slave_type can | |
1315 | * change. */ | |
1316 | was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp); | |
1317 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
1318 | ||
1319 | netlink_interface_update_hw_addr(tb, ifp); | |
1320 | ||
1321 | if (if_is_no_ptm_operative(ifp)) { | |
1322 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1323 | if (!if_is_no_ptm_operative(ifp)) { | |
1324 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1325 | zlog_debug( | |
1326 | "Intf %s(%u) has gone DOWN", | |
1327 | name, ifp->ifindex); | |
1328 | if_down(ifp); | |
1329 | } else if (if_is_operative(ifp)) { | |
1330 | /* Must notify client daemons of new | |
1331 | * interface status. */ | |
1332 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1333 | zlog_debug( | |
1334 | "Intf %s(%u) PTM up, notifying clients", | |
1335 | name, ifp->ifindex); | |
1336 | zebra_interface_up_update(ifp); | |
1337 | } | |
1338 | } else { | |
1339 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1340 | if (if_is_operative(ifp)) { | |
1341 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1342 | zlog_debug( | |
1343 | "Intf %s(%u) has come UP", | |
1344 | name, ifp->ifindex); | |
1345 | if_up(ifp); | |
1346 | } | |
1347 | } | |
1348 | ||
1349 | /* Extract and save L2 interface information, take | |
1350 | * additional actions. */ | |
1351 | netlink_interface_update_l2info( | |
1352 | ifp, linkinfo[IFLA_INFO_DATA], 0); | |
1353 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave) | |
1354 | zebra_l2if_update_bridge_slave(ifp, | |
1355 | bridge_ifindex); | |
b53686c5 PG |
1356 | if_netlink_check_ifp_instance_consistency(RTM_NEWLINK, |
1357 | ifp, ns_id); | |
d62a17ae | 1358 | } |
1359 | } else { | |
1360 | /* Delete interface notification from kernel */ | |
1361 | if (ifp == NULL) { | |
1362 | zlog_warn("RTM_DELLINK for unknown interface %s(%u)", | |
1363 | name, ifi->ifi_index); | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1367 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1368 | zlog_debug("RTM_DELLINK for %s(%u)", name, | |
1369 | ifp->ifindex); | |
1370 | ||
1371 | UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
1372 | ||
1373 | /* Special handling for bridge or VxLAN interfaces. */ | |
1374 | if (IS_ZEBRA_IF_BRIDGE(ifp)) | |
1375 | zebra_l2_bridge_del(ifp); | |
1376 | else if (IS_ZEBRA_IF_VXLAN(ifp)) | |
1377 | zebra_l2_vxlanif_del(ifp); | |
1378 | ||
1379 | if (!IS_ZEBRA_IF_VRF(ifp)) | |
1380 | if_delete_update(ifp); | |
b53686c5 PG |
1381 | if_netlink_check_ifp_instance_consistency(RTM_DELLINK, |
1382 | ifp, ns_id); | |
1fdc9eae | 1383 | } |
1384 | ||
d62a17ae | 1385 | return 0; |
1fdc9eae | 1386 | } |
718e3744 | 1387 | |
1388 | /* Interface information read by netlink. */ | |
d62a17ae | 1389 | void interface_list(struct zebra_ns *zns) |
718e3744 | 1390 | { |
d62a17ae | 1391 | interface_lookup_netlink(zns); |
718e3744 | 1392 | } |
ddfeb486 DL |
1393 | |
1394 | #endif /* GNU_LINUX */ |