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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" | |
9df414fe | 70 | #include "zebra/zebra_errors.h" |
1fdc9eae | 71 | |
0268f30e | 72 | extern struct zebra_privs_t zserv_privs; |
1fdc9eae | 73 | |
74 | /* Note: on netlink systems, there should be a 1-to-1 mapping between interface | |
75 | names and ifindex values. */ | |
d62a17ae | 76 | static void set_ifindex(struct interface *ifp, ifindex_t ifi_index, |
77 | struct zebra_ns *zns) | |
1fdc9eae | 78 | { |
d62a17ae | 79 | struct interface *oifp; |
80 | ||
81 | if (((oifp = if_lookup_by_index_per_ns(zns, ifi_index)) != NULL) | |
82 | && (oifp != ifp)) { | |
83 | if (ifi_index == IFINDEX_INTERNAL) | |
af4c2728 | 84 | flog_err( |
450971aa | 85 | EC_LIB_INTERFACE, |
4d43f68a | 86 | "Netlink is setting interface %s ifindex to reserved internal value %u", |
d62a17ae | 87 | ifp->name, ifi_index); |
88 | else { | |
89 | if (IS_ZEBRA_DEBUG_KERNEL) | |
90 | zlog_debug( | |
91 | "interface index %d was renamed from %s to %s", | |
92 | ifi_index, oifp->name, ifp->name); | |
93 | if (if_is_up(oifp)) | |
af4c2728 | 94 | flog_err( |
450971aa | 95 | EC_LIB_INTERFACE, |
4d43f68a | 96 | "interface rename detected on up interface: index %d was renamed from %s to %s, results are uncertain!", |
d62a17ae | 97 | ifi_index, oifp->name, ifp->name); |
98 | if_delete_update(oifp); | |
99 | } | |
100 | } | |
ff880b78 | 101 | if_set_index(ifp, ifi_index); |
1fdc9eae | 102 | } |
103 | ||
104 | /* Utility function to parse hardware link-layer address and update ifp */ | |
d62a17ae | 105 | static void netlink_interface_update_hw_addr(struct rtattr **tb, |
106 | struct interface *ifp) | |
1fdc9eae | 107 | { |
d62a17ae | 108 | int i; |
109 | ||
110 | if (tb[IFLA_ADDRESS]) { | |
111 | int hw_addr_len; | |
112 | ||
113 | hw_addr_len = RTA_PAYLOAD(tb[IFLA_ADDRESS]); | |
114 | ||
115 | if (hw_addr_len > INTERFACE_HWADDR_MAX) | |
9df414fe QY |
116 | zlog_debug("Hardware address is too large: %d", |
117 | hw_addr_len); | |
d62a17ae | 118 | else { |
119 | ifp->hw_addr_len = hw_addr_len; | |
120 | memcpy(ifp->hw_addr, RTA_DATA(tb[IFLA_ADDRESS]), | |
121 | hw_addr_len); | |
122 | ||
123 | for (i = 0; i < hw_addr_len; i++) | |
124 | if (ifp->hw_addr[i] != 0) | |
125 | break; | |
126 | ||
127 | if (i == hw_addr_len) | |
128 | ifp->hw_addr_len = 0; | |
129 | else | |
130 | ifp->hw_addr_len = hw_addr_len; | |
131 | } | |
132 | } | |
1fdc9eae | 133 | } |
134 | ||
d62a17ae | 135 | static enum zebra_link_type netlink_to_zebra_link_type(unsigned int hwt) |
1fdc9eae | 136 | { |
d62a17ae | 137 | switch (hwt) { |
138 | case ARPHRD_ETHER: | |
139 | return ZEBRA_LLT_ETHER; | |
140 | case ARPHRD_EETHER: | |
141 | return ZEBRA_LLT_EETHER; | |
142 | case ARPHRD_AX25: | |
143 | return ZEBRA_LLT_AX25; | |
144 | case ARPHRD_PRONET: | |
145 | return ZEBRA_LLT_PRONET; | |
146 | case ARPHRD_IEEE802: | |
147 | return ZEBRA_LLT_IEEE802; | |
148 | case ARPHRD_ARCNET: | |
149 | return ZEBRA_LLT_ARCNET; | |
150 | case ARPHRD_APPLETLK: | |
151 | return ZEBRA_LLT_APPLETLK; | |
152 | case ARPHRD_DLCI: | |
153 | return ZEBRA_LLT_DLCI; | |
154 | case ARPHRD_ATM: | |
155 | return ZEBRA_LLT_ATM; | |
156 | case ARPHRD_METRICOM: | |
157 | return ZEBRA_LLT_METRICOM; | |
158 | case ARPHRD_IEEE1394: | |
159 | return ZEBRA_LLT_IEEE1394; | |
160 | case ARPHRD_EUI64: | |
161 | return ZEBRA_LLT_EUI64; | |
162 | case ARPHRD_INFINIBAND: | |
163 | return ZEBRA_LLT_INFINIBAND; | |
164 | case ARPHRD_SLIP: | |
165 | return ZEBRA_LLT_SLIP; | |
166 | case ARPHRD_CSLIP: | |
167 | return ZEBRA_LLT_CSLIP; | |
168 | case ARPHRD_SLIP6: | |
169 | return ZEBRA_LLT_SLIP6; | |
170 | case ARPHRD_CSLIP6: | |
171 | return ZEBRA_LLT_CSLIP6; | |
172 | case ARPHRD_RSRVD: | |
173 | return ZEBRA_LLT_RSRVD; | |
174 | case ARPHRD_ADAPT: | |
175 | return ZEBRA_LLT_ADAPT; | |
176 | case ARPHRD_ROSE: | |
177 | return ZEBRA_LLT_ROSE; | |
178 | case ARPHRD_X25: | |
179 | return ZEBRA_LLT_X25; | |
180 | case ARPHRD_PPP: | |
181 | return ZEBRA_LLT_PPP; | |
182 | case ARPHRD_CISCO: | |
183 | return ZEBRA_LLT_CHDLC; | |
184 | case ARPHRD_LAPB: | |
185 | return ZEBRA_LLT_LAPB; | |
186 | case ARPHRD_RAWHDLC: | |
187 | return ZEBRA_LLT_RAWHDLC; | |
188 | case ARPHRD_TUNNEL: | |
189 | return ZEBRA_LLT_IPIP; | |
190 | case ARPHRD_TUNNEL6: | |
191 | return ZEBRA_LLT_IPIP6; | |
192 | case ARPHRD_FRAD: | |
193 | return ZEBRA_LLT_FRAD; | |
194 | case ARPHRD_SKIP: | |
195 | return ZEBRA_LLT_SKIP; | |
196 | case ARPHRD_LOOPBACK: | |
197 | return ZEBRA_LLT_LOOPBACK; | |
198 | case ARPHRD_LOCALTLK: | |
199 | return ZEBRA_LLT_LOCALTLK; | |
200 | case ARPHRD_FDDI: | |
201 | return ZEBRA_LLT_FDDI; | |
202 | case ARPHRD_SIT: | |
203 | return ZEBRA_LLT_SIT; | |
204 | case ARPHRD_IPDDP: | |
205 | return ZEBRA_LLT_IPDDP; | |
206 | case ARPHRD_IPGRE: | |
207 | return ZEBRA_LLT_IPGRE; | |
208 | case ARPHRD_PIMREG: | |
209 | return ZEBRA_LLT_PIMREG; | |
210 | case ARPHRD_HIPPI: | |
211 | return ZEBRA_LLT_HIPPI; | |
212 | case ARPHRD_ECONET: | |
213 | return ZEBRA_LLT_ECONET; | |
214 | case ARPHRD_IRDA: | |
215 | return ZEBRA_LLT_IRDA; | |
216 | case ARPHRD_FCPP: | |
217 | return ZEBRA_LLT_FCPP; | |
218 | case ARPHRD_FCAL: | |
219 | return ZEBRA_LLT_FCAL; | |
220 | case ARPHRD_FCPL: | |
221 | return ZEBRA_LLT_FCPL; | |
222 | case ARPHRD_FCFABRIC: | |
223 | return ZEBRA_LLT_FCFABRIC; | |
224 | case ARPHRD_IEEE802_TR: | |
225 | return ZEBRA_LLT_IEEE802_TR; | |
226 | case ARPHRD_IEEE80211: | |
227 | return ZEBRA_LLT_IEEE80211; | |
4268e09e | 228 | #ifdef ARPHRD_IEEE802154 |
d62a17ae | 229 | case ARPHRD_IEEE802154: |
230 | return ZEBRA_LLT_IEEE802154; | |
4268e09e | 231 | #endif |
1fdc9eae | 232 | #ifdef ARPHRD_IP6GRE |
d62a17ae | 233 | case ARPHRD_IP6GRE: |
234 | return ZEBRA_LLT_IP6GRE; | |
1fdc9eae | 235 | #endif |
236 | #ifdef ARPHRD_IEEE802154_PHY | |
d62a17ae | 237 | case ARPHRD_IEEE802154_PHY: |
238 | return ZEBRA_LLT_IEEE802154_PHY; | |
1fdc9eae | 239 | #endif |
240 | ||
d62a17ae | 241 | default: |
242 | return ZEBRA_LLT_UNKNOWN; | |
243 | } | |
1fdc9eae | 244 | } |
245 | ||
b9368db9 DD |
246 | static void netlink_determine_zebra_iftype(const char *kind, |
247 | zebra_iftype_t *zif_type) | |
6675513d | 248 | { |
d62a17ae | 249 | *zif_type = ZEBRA_IF_OTHER; |
250 | ||
251 | if (!kind) | |
252 | return; | |
253 | ||
254 | if (strcmp(kind, "vrf") == 0) | |
255 | *zif_type = ZEBRA_IF_VRF; | |
256 | else if (strcmp(kind, "bridge") == 0) | |
257 | *zif_type = ZEBRA_IF_BRIDGE; | |
258 | else if (strcmp(kind, "vlan") == 0) | |
259 | *zif_type = ZEBRA_IF_VLAN; | |
260 | else if (strcmp(kind, "vxlan") == 0) | |
261 | *zif_type = ZEBRA_IF_VXLAN; | |
1a98c087 MK |
262 | else if (strcmp(kind, "macvlan") == 0) |
263 | *zif_type = ZEBRA_IF_MACVLAN; | |
0e4864ea PG |
264 | else if (strcmp(kind, "veth") == 0) |
265 | *zif_type = ZEBRA_IF_VETH; | |
b9368db9 DD |
266 | else if (strcmp(kind, "bond") == 0) |
267 | *zif_type = ZEBRA_IF_BOND; | |
268 | else if (strcmp(kind, "bond_slave") == 0) | |
269 | *zif_type = ZEBRA_IF_BOND_SLAVE; | |
6675513d | 270 | } |
52d8f0d8 | 271 | |
d62a17ae | 272 | #define parse_rtattr_nested(tb, max, rta) \ |
273 | netlink_parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)) | |
1fdc9eae | 274 | |
d62a17ae | 275 | static void netlink_vrf_change(struct nlmsghdr *h, struct rtattr *tb, |
276 | const char *name) | |
1fdc9eae | 277 | { |
d62a17ae | 278 | struct ifinfomsg *ifi; |
279 | struct rtattr *linkinfo[IFLA_INFO_MAX + 1]; | |
280 | struct rtattr *attr[IFLA_VRF_MAX + 1]; | |
281 | struct vrf *vrf; | |
282 | struct zebra_vrf *zvrf; | |
d7c0a89a | 283 | uint32_t nl_table_id; |
d62a17ae | 284 | |
285 | ifi = NLMSG_DATA(h); | |
286 | ||
287 | memset(linkinfo, 0, sizeof linkinfo); | |
288 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); | |
289 | ||
290 | if (!linkinfo[IFLA_INFO_DATA]) { | |
291 | if (IS_ZEBRA_DEBUG_KERNEL) | |
292 | zlog_debug( | |
293 | "%s: IFLA_INFO_DATA missing from VRF message: %s", | |
294 | __func__, name); | |
295 | return; | |
296 | } | |
297 | ||
298 | memset(attr, 0, sizeof attr); | |
299 | parse_rtattr_nested(attr, IFLA_VRF_MAX, linkinfo[IFLA_INFO_DATA]); | |
300 | if (!attr[IFLA_VRF_TABLE]) { | |
301 | if (IS_ZEBRA_DEBUG_KERNEL) | |
302 | zlog_debug( | |
303 | "%s: IFLA_VRF_TABLE missing from VRF message: %s", | |
304 | __func__, name); | |
305 | return; | |
1fdc9eae | 306 | } |
307 | ||
d7c0a89a | 308 | nl_table_id = *(uint32_t *)RTA_DATA(attr[IFLA_VRF_TABLE]); |
d62a17ae | 309 | |
310 | if (h->nlmsg_type == RTM_NEWLINK) { | |
311 | if (IS_ZEBRA_DEBUG_KERNEL) | |
312 | zlog_debug("RTM_NEWLINK for VRF %s(%u) table %u", name, | |
313 | ifi->ifi_index, nl_table_id); | |
314 | ||
315 | /* | |
316 | * vrf_get is implied creation if it does not exist | |
317 | */ | |
318 | vrf = vrf_get((vrf_id_t)ifi->ifi_index, | |
319 | name); // It would create vrf | |
320 | if (!vrf) { | |
450971aa | 321 | flog_err(EC_LIB_INTERFACE, "VRF %s id %u not created", |
1c50c1c0 | 322 | name, ifi->ifi_index); |
d62a17ae | 323 | return; |
324 | } | |
325 | ||
d62a17ae | 326 | /* |
327 | * This is the only place that we get the actual kernel table_id | |
328 | * being used. We need it to set the table_id of the routes | |
329 | * we are passing to the kernel.... And to throw some totally | |
330 | * awesome parties. that too. | |
593406a1 DS |
331 | * |
332 | * At this point we *must* have a zvrf because the vrf_create | |
333 | * callback creates one. We *must* set the table id | |
334 | * before the vrf_enable because of( at the very least ) | |
335 | * static routes being delayed for installation until | |
336 | * during the vrf_enable callbacks. | |
d62a17ae | 337 | */ |
338 | zvrf = (struct zebra_vrf *)vrf->info; | |
339 | zvrf->table_id = nl_table_id; | |
593406a1 DS |
340 | |
341 | /* Enable the created VRF. */ | |
342 | if (!vrf_enable(vrf)) { | |
450971aa | 343 | flog_err(EC_LIB_INTERFACE, |
1c50c1c0 QY |
344 | "Failed to enable VRF %s id %u", name, |
345 | ifi->ifi_index); | |
593406a1 DS |
346 | return; |
347 | } | |
348 | ||
d62a17ae | 349 | } else // h->nlmsg_type == RTM_DELLINK |
350 | { | |
351 | if (IS_ZEBRA_DEBUG_KERNEL) | |
352 | zlog_debug("RTM_DELLINK for VRF %s(%u)", name, | |
353 | ifi->ifi_index); | |
354 | ||
355 | vrf = vrf_lookup_by_id((vrf_id_t)ifi->ifi_index); | |
356 | ||
357 | if (!vrf) { | |
e914ccbe | 358 | flog_warn(EC_ZEBRA_VRF_NOT_FOUND, "%s: vrf not found", |
9df414fe | 359 | __func__); |
d62a17ae | 360 | return; |
361 | } | |
362 | ||
363 | vrf_delete(vrf); | |
364 | } | |
1fdc9eae | 365 | } |
366 | ||
0268f30e | 367 | static int get_iflink_speed(struct interface *interface) |
535fe877 | 368 | { |
d62a17ae | 369 | struct ifreq ifdata; |
370 | struct ethtool_cmd ecmd; | |
371 | int sd; | |
372 | int rc; | |
0268f30e | 373 | const char *ifname = interface->name; |
d62a17ae | 374 | |
375 | /* initialize struct */ | |
376 | memset(&ifdata, 0, sizeof(ifdata)); | |
377 | ||
378 | /* set interface name */ | |
0af35d90 | 379 | strlcpy(ifdata.ifr_name, ifname, sizeof(ifdata.ifr_name)); |
d62a17ae | 380 | |
381 | /* initialize ethtool interface */ | |
382 | memset(&ecmd, 0, sizeof(ecmd)); | |
383 | ecmd.cmd = ETHTOOL_GSET; /* ETHTOOL_GLINK */ | |
ba85366a | 384 | ifdata.ifr_data = (caddr_t)&ecmd; |
d62a17ae | 385 | |
386 | /* use ioctl to get IP address of an interface */ | |
01b9e3fd DL |
387 | frr_elevate_privs(&zserv_privs) { |
388 | sd = vrf_socket(PF_INET, SOCK_DGRAM, IPPROTO_IP, | |
389 | interface->vrf_id, | |
390 | NULL); | |
391 | if (sd < 0) { | |
392 | if (IS_ZEBRA_DEBUG_KERNEL) | |
393 | zlog_debug("Failure to read interface %s speed: %d %s", | |
394 | ifname, errno, safe_strerror(errno)); | |
395 | return 0; | |
396 | } | |
d62a17ae | 397 | /* Get the current link state for the interface */ |
633fc9b1 DL |
398 | rc = vrf_ioctl(interface->vrf_id, sd, SIOCETHTOOL, |
399 | (char *)&ifdata); | |
01b9e3fd | 400 | } |
d62a17ae | 401 | if (rc < 0) { |
bd7d0299 DS |
402 | if (IS_ZEBRA_DEBUG_KERNEL) |
403 | zlog_debug( | |
404 | "IOCTL failure to read interface %s speed: %d %s", | |
405 | ifname, errno, safe_strerror(errno)); | |
d62a17ae | 406 | ecmd.speed_hi = 0; |
407 | ecmd.speed = 0; | |
408 | } | |
409 | ||
410 | close(sd); | |
411 | ||
412 | return (ecmd.speed_hi << 16) | ecmd.speed; | |
535fe877 DS |
413 | } |
414 | ||
dc7b3cae DS |
415 | uint32_t kernel_get_speed(struct interface *ifp) |
416 | { | |
0268f30e | 417 | return get_iflink_speed(ifp); |
dc7b3cae DS |
418 | } |
419 | ||
d62a17ae | 420 | static int netlink_extract_bridge_info(struct rtattr *link_data, |
421 | struct zebra_l2info_bridge *bridge_info) | |
6675513d | 422 | { |
d62a17ae | 423 | struct rtattr *attr[IFLA_BR_MAX + 1]; |
424 | ||
425 | memset(bridge_info, 0, sizeof(*bridge_info)); | |
426 | memset(attr, 0, sizeof attr); | |
427 | parse_rtattr_nested(attr, IFLA_BR_MAX, link_data); | |
428 | if (attr[IFLA_BR_VLAN_FILTERING]) | |
429 | bridge_info->vlan_aware = | |
d7c0a89a | 430 | *(uint8_t *)RTA_DATA(attr[IFLA_BR_VLAN_FILTERING]); |
d62a17ae | 431 | return 0; |
6675513d | 432 | } |
433 | ||
d62a17ae | 434 | static int netlink_extract_vlan_info(struct rtattr *link_data, |
435 | struct zebra_l2info_vlan *vlan_info) | |
6675513d | 436 | { |
d62a17ae | 437 | struct rtattr *attr[IFLA_VLAN_MAX + 1]; |
438 | vlanid_t vid_in_msg; | |
439 | ||
440 | memset(vlan_info, 0, sizeof(*vlan_info)); | |
441 | memset(attr, 0, sizeof attr); | |
442 | parse_rtattr_nested(attr, IFLA_VLAN_MAX, link_data); | |
443 | if (!attr[IFLA_VLAN_ID]) { | |
444 | if (IS_ZEBRA_DEBUG_KERNEL) | |
445 | zlog_debug("IFLA_VLAN_ID missing from VLAN IF message"); | |
446 | return -1; | |
447 | } | |
448 | ||
449 | vid_in_msg = *(vlanid_t *)RTA_DATA(attr[IFLA_VLAN_ID]); | |
450 | vlan_info->vid = vid_in_msg; | |
451 | return 0; | |
6675513d | 452 | } |
453 | ||
d62a17ae | 454 | static int netlink_extract_vxlan_info(struct rtattr *link_data, |
455 | struct zebra_l2info_vxlan *vxl_info) | |
6675513d | 456 | { |
d62a17ae | 457 | struct rtattr *attr[IFLA_VXLAN_MAX + 1]; |
458 | vni_t vni_in_msg; | |
459 | struct in_addr vtep_ip_in_msg; | |
460 | ||
461 | memset(vxl_info, 0, sizeof(*vxl_info)); | |
462 | memset(attr, 0, sizeof attr); | |
463 | parse_rtattr_nested(attr, IFLA_VXLAN_MAX, link_data); | |
464 | if (!attr[IFLA_VXLAN_ID]) { | |
465 | if (IS_ZEBRA_DEBUG_KERNEL) | |
466 | zlog_debug( | |
467 | "IFLA_VXLAN_ID missing from VXLAN IF message"); | |
468 | return -1; | |
469 | } | |
470 | ||
471 | vni_in_msg = *(vni_t *)RTA_DATA(attr[IFLA_VXLAN_ID]); | |
472 | vxl_info->vni = vni_in_msg; | |
473 | if (!attr[IFLA_VXLAN_LOCAL]) { | |
474 | if (IS_ZEBRA_DEBUG_KERNEL) | |
475 | zlog_debug( | |
476 | "IFLA_VXLAN_LOCAL missing from VXLAN IF message"); | |
477 | } else { | |
478 | vtep_ip_in_msg = | |
479 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_LOCAL]); | |
480 | vxl_info->vtep_ip = vtep_ip_in_msg; | |
481 | } | |
482 | ||
483 | return 0; | |
6675513d | 484 | } |
485 | ||
486 | /* | |
487 | * Extract and save L2 params (of interest) for an interface. When a | |
488 | * bridge interface is added or updated, take further actions to map | |
489 | * its members. Likewise, for VxLAN interface. | |
490 | */ | |
d62a17ae | 491 | static void netlink_interface_update_l2info(struct interface *ifp, |
492 | struct rtattr *link_data, int add) | |
6675513d | 493 | { |
d62a17ae | 494 | if (!link_data) |
495 | return; | |
496 | ||
497 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
498 | struct zebra_l2info_bridge bridge_info; | |
499 | ||
500 | netlink_extract_bridge_info(link_data, &bridge_info); | |
501 | zebra_l2_bridge_add_update(ifp, &bridge_info, add); | |
502 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
503 | struct zebra_l2info_vlan vlan_info; | |
504 | ||
505 | netlink_extract_vlan_info(link_data, &vlan_info); | |
506 | zebra_l2_vlanif_update(ifp, &vlan_info); | |
507 | } else if (IS_ZEBRA_IF_VXLAN(ifp)) { | |
508 | struct zebra_l2info_vxlan vxlan_info; | |
509 | ||
510 | netlink_extract_vxlan_info(link_data, &vxlan_info); | |
511 | zebra_l2_vxlanif_add_update(ifp, &vxlan_info, add); | |
512 | } | |
6675513d | 513 | } |
514 | ||
d62a17ae | 515 | static int netlink_bridge_interface(struct nlmsghdr *h, int len, ns_id_t ns_id, |
516 | int startup) | |
6675513d | 517 | { |
d62a17ae | 518 | char *name = NULL; |
519 | struct ifinfomsg *ifi; | |
520 | struct rtattr *tb[IFLA_MAX + 1]; | |
521 | struct interface *ifp; | |
522 | struct rtattr *aftb[IFLA_BRIDGE_MAX + 1]; | |
523 | struct { | |
d7c0a89a QY |
524 | uint16_t flags; |
525 | uint16_t vid; | |
d62a17ae | 526 | } * vinfo; |
527 | vlanid_t access_vlan; | |
528 | ||
529 | /* Fetch name and ifindex */ | |
530 | ifi = NLMSG_DATA(h); | |
531 | memset(tb, 0, sizeof tb); | |
532 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
533 | ||
534 | if (tb[IFLA_IFNAME] == NULL) | |
535 | return -1; | |
536 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
537 | ||
538 | /* The interface should already be known, if not discard. */ | |
539 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(ns_id), ifi->ifi_index); | |
540 | if (!ifp) { | |
9df414fe QY |
541 | zlog_debug("Cannot find bridge IF %s(%u)", name, |
542 | ifi->ifi_index); | |
d62a17ae | 543 | return 0; |
544 | } | |
545 | if (!IS_ZEBRA_IF_VXLAN(ifp)) | |
546 | return 0; | |
547 | ||
548 | /* We are only interested in the access VLAN i.e., AF_SPEC */ | |
549 | if (!tb[IFLA_AF_SPEC]) | |
550 | return 0; | |
551 | ||
552 | /* There is a 1-to-1 mapping of VLAN to VxLAN - hence | |
553 | * only 1 access VLAN is accepted. | |
554 | */ | |
555 | memset(aftb, 0, sizeof aftb); | |
556 | parse_rtattr_nested(aftb, IFLA_BRIDGE_MAX, tb[IFLA_AF_SPEC]); | |
557 | if (!aftb[IFLA_BRIDGE_VLAN_INFO]) | |
558 | return 0; | |
559 | ||
560 | vinfo = RTA_DATA(aftb[IFLA_BRIDGE_VLAN_INFO]); | |
561 | if (!(vinfo->flags & BRIDGE_VLAN_INFO_PVID)) | |
562 | return 0; | |
563 | ||
564 | access_vlan = (vlanid_t)vinfo->vid; | |
565 | if (IS_ZEBRA_DEBUG_KERNEL) | |
566 | zlog_debug("Access VLAN %u for VxLAN IF %s(%u)", access_vlan, | |
567 | name, ifi->ifi_index); | |
568 | zebra_l2_vxlanif_update_access_vlan(ifp, access_vlan); | |
569 | return 0; | |
6675513d | 570 | } |
571 | ||
2414abd3 DS |
572 | /* |
573 | * Called from interface_lookup_netlink(). This function is only used | |
574 | * during bootstrap. | |
575 | */ | |
576 | static int netlink_interface(struct nlmsghdr *h, ns_id_t ns_id, int startup) | |
1fdc9eae | 577 | { |
d62a17ae | 578 | int len; |
579 | struct ifinfomsg *ifi; | |
580 | struct rtattr *tb[IFLA_MAX + 1]; | |
581 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
582 | struct interface *ifp; | |
583 | char *name = NULL; | |
584 | char *kind = NULL; | |
48884c6b | 585 | char *desc = NULL; |
d62a17ae | 586 | char *slave_kind = NULL; |
587 | struct zebra_ns *zns; | |
588 | vrf_id_t vrf_id = VRF_DEFAULT; | |
589 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
590 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
591 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
592 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 593 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
520ebf72 | 594 | struct zebra_if *zif; |
d62a17ae | 595 | |
596 | zns = zebra_ns_lookup(ns_id); | |
597 | ifi = NLMSG_DATA(h); | |
598 | ||
599 | if (h->nlmsg_type != RTM_NEWLINK) | |
600 | return 0; | |
601 | ||
602 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
9bdf8618 DS |
603 | if (len < 0) { |
604 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
605 | __PRETTY_FUNCTION__, | |
606 | h->nlmsg_len, | |
607 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 608 | return -1; |
9bdf8618 | 609 | } |
d62a17ae | 610 | |
611 | /* We are interested in some AF_BRIDGE notifications. */ | |
612 | if (ifi->ifi_family == AF_BRIDGE) | |
613 | return netlink_bridge_interface(h, len, ns_id, startup); | |
614 | ||
615 | /* Looking up interface name. */ | |
616 | memset(tb, 0, sizeof tb); | |
617 | memset(linkinfo, 0, sizeof linkinfo); | |
618 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 619 | |
d62a17ae | 620 | /* check for wireless messages to ignore */ |
621 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
622 | if (IS_ZEBRA_DEBUG_KERNEL) | |
623 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
624 | __func__); | |
625 | return 0; | |
626 | } | |
1fdc9eae | 627 | |
d62a17ae | 628 | if (tb[IFLA_IFNAME] == NULL) |
629 | return -1; | |
630 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 631 | |
48884c6b DS |
632 | if (tb[IFLA_IFALIAS]) |
633 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
634 | ||
d62a17ae | 635 | if (tb[IFLA_LINKINFO]) { |
636 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 637 | |
d62a17ae | 638 | if (linkinfo[IFLA_INFO_KIND]) |
639 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 640 | |
d62a17ae | 641 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
642 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 643 | |
b9368db9 DD |
644 | if ((slave_kind != NULL) && strcmp(slave_kind, "bond") == 0) |
645 | netlink_determine_zebra_iftype("bond_slave", &zif_type); | |
646 | else | |
647 | netlink_determine_zebra_iftype(kind, &zif_type); | |
d62a17ae | 648 | } |
649 | ||
650 | /* If VRF, create the VRF structure itself. */ | |
78dd30b2 | 651 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 652 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
653 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
654 | } | |
655 | ||
656 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
657 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
658 | && !vrf_is_backend_netns()) { | |
d62a17ae | 659 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 660 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 661 | } else if (slave_kind && (strcmp(slave_kind, "bridge") == 0)) { |
662 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
663 | bridge_ifindex = | |
664 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
665 | } else if (slave_kind && (strcmp(slave_kind, "bond") == 0)) { |
666 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
667 | bond_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 668 | } else |
669 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
670 | } | |
78dd30b2 PG |
671 | if (vrf_is_backend_netns()) |
672 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 673 | |
674 | /* If linking to another interface, note it. */ | |
675 | if (tb[IFLA_LINK]) | |
676 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
677 | ||
678 | /* Add interface. */ | |
8f90d89b | 679 | ifp = if_get_by_name(name, vrf_id); |
d62a17ae | 680 | set_ifindex(ifp, ifi->ifi_index, zns); |
681 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d62a17ae | 682 | ifp->mtu6 = ifp->mtu = *(uint32_t *)RTA_DATA(tb[IFLA_MTU]); |
683 | ifp->metric = 0; | |
0268f30e | 684 | ifp->speed = get_iflink_speed(ifp); |
d62a17ae | 685 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; |
686 | ||
48884c6b DS |
687 | if (desc) |
688 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
689 | ||
d62a17ae | 690 | /* Set zebra interface type */ |
691 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
692 | if (IS_ZEBRA_IF_VRF(ifp)) |
693 | SET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 694 | |
98efddf1 DS |
695 | /* |
696 | * Just set the @link/lower-device ifindex. During nldump interfaces are | |
520ebf72 AK |
697 | * not ordered in any fashion so we may end up getting upper devices |
698 | * before lower devices. We will setup the real linkage once the dump | |
98efddf1 DS |
699 | * is complete. |
700 | */ | |
520ebf72 AK |
701 | zif = (struct zebra_if *)ifp->info; |
702 | zif->link_ifindex = link_ifindex; | |
d62a17ae | 703 | |
704 | /* Hardware type and address. */ | |
705 | ifp->ll_type = netlink_to_zebra_link_type(ifi->ifi_type); | |
706 | netlink_interface_update_hw_addr(tb, ifp); | |
707 | ||
708 | if_add_update(ifp); | |
709 | ||
710 | /* Extract and save L2 interface information, take additional actions. | |
711 | */ | |
712 | netlink_interface_update_l2info(ifp, linkinfo[IFLA_INFO_DATA], 1); | |
713 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
714 | zebra_l2if_update_bridge_slave(ifp, bridge_ifindex); | |
b9368db9 DD |
715 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
716 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 717 | |
718 | return 0; | |
1fdc9eae | 719 | } |
720 | ||
289602d7 | 721 | /* Request for specific interface or address information from the kernel */ |
85a75f1e MS |
722 | static int netlink_request_intf_addr(struct nlsock *netlink_cmd, int family, |
723 | int type, uint32_t filter_mask) | |
289602d7 | 724 | { |
d62a17ae | 725 | struct { |
726 | struct nlmsghdr n; | |
727 | struct ifinfomsg ifm; | |
728 | char buf[256]; | |
729 | } req; | |
730 | ||
731 | /* Form the request, specifying filter (rtattr) if needed. */ | |
732 | memset(&req, 0, sizeof(req)); | |
733 | req.n.nlmsg_type = type; | |
734 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
735 | req.ifm.ifi_family = family; | |
736 | ||
737 | /* Include filter, if specified. */ | |
738 | if (filter_mask) | |
739 | addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filter_mask); | |
740 | ||
85a75f1e | 741 | return netlink_request(netlink_cmd, &req.n); |
289602d7 | 742 | } |
743 | ||
1fdc9eae | 744 | /* Interface lookup by netlink socket. */ |
d62a17ae | 745 | int interface_lookup_netlink(struct zebra_ns *zns) |
1fdc9eae | 746 | { |
d62a17ae | 747 | int ret; |
85a75f1e MS |
748 | struct zebra_dplane_info dp_info; |
749 | struct nlsock *netlink_cmd = &zns->netlink_cmd; | |
750 | ||
751 | /* Capture key info from ns struct */ | |
752 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
d62a17ae | 753 | |
754 | /* Get interface information. */ | |
85a75f1e | 755 | ret = netlink_request_intf_addr(netlink_cmd, AF_PACKET, RTM_GETLINK, 0); |
d62a17ae | 756 | if (ret < 0) |
757 | return ret; | |
85a75f1e | 758 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 759 | 1); |
760 | if (ret < 0) | |
761 | return ret; | |
762 | ||
763 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 764 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 765 | RTEXT_FILTER_BRVLAN); |
766 | if (ret < 0) | |
767 | return ret; | |
85a75f1e | 768 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 769 | 0); |
770 | if (ret < 0) | |
771 | return ret; | |
772 | ||
773 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 774 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 775 | RTEXT_FILTER_BRVLAN); |
776 | if (ret < 0) | |
777 | return ret; | |
85a75f1e | 778 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 779 | 0); |
780 | if (ret < 0) | |
781 | return ret; | |
782 | ||
520ebf72 AK |
783 | /* fixup linkages */ |
784 | zebra_if_update_all_links(); | |
785 | ||
d62a17ae | 786 | /* Get IPv4 address of the interfaces. */ |
85a75f1e | 787 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET, RTM_GETADDR, 0); |
d62a17ae | 788 | if (ret < 0) |
789 | return ret; | |
85a75f1e | 790 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 791 | 0, 1); |
792 | if (ret < 0) | |
793 | return ret; | |
794 | ||
795 | /* Get IPv6 address of the interfaces. */ | |
85a75f1e | 796 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET6, RTM_GETADDR, 0); |
d62a17ae | 797 | if (ret < 0) |
798 | return ret; | |
85a75f1e | 799 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 800 | 0, 1); |
801 | if (ret < 0) | |
802 | return ret; | |
803 | ||
804 | return 0; | |
1fdc9eae | 805 | } |
806 | ||
e0ae31b8 DS |
807 | int kernel_interface_set_master(struct interface *master, |
808 | struct interface *slave) | |
809 | { | |
810 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
811 | ||
812 | struct { | |
813 | struct nlmsghdr n; | |
814 | struct ifinfomsg ifa; | |
815 | char buf[NL_PKT_BUF_SIZE]; | |
816 | } req; | |
817 | ||
818 | memset(&req, 0, sizeof req); | |
819 | ||
820 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
821 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
822 | req.n.nlmsg_type = RTM_SETLINK; | |
823 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
824 | ||
825 | req.ifa.ifi_index = slave->ifindex; | |
826 | ||
827 | addattr_l(&req.n, sizeof req, IFLA_MASTER, &master->ifindex, 4); | |
828 | addattr_l(&req.n, sizeof req, IFLA_LINK, &slave->ifindex, 4); | |
829 | ||
830 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
831 | 0); | |
832 | } | |
833 | ||
1fdc9eae | 834 | /* Interface address modification. */ |
d62a17ae | 835 | static int netlink_address(int cmd, int family, struct interface *ifp, |
836 | struct connected *ifc) | |
1fdc9eae | 837 | { |
d62a17ae | 838 | int bytelen; |
839 | struct prefix *p; | |
1fdc9eae | 840 | |
d62a17ae | 841 | struct { |
842 | struct nlmsghdr n; | |
843 | struct ifaddrmsg ifa; | |
844 | char buf[NL_PKT_BUF_SIZE]; | |
845 | } req; | |
1fdc9eae | 846 | |
fe533c56 | 847 | struct zebra_ns *zns; |
1fdc9eae | 848 | |
fe533c56 PG |
849 | if (vrf_is_backend_netns()) |
850 | zns = zebra_ns_lookup((ns_id_t)ifp->vrf_id); | |
851 | else | |
852 | zns = zebra_ns_lookup(NS_DEFAULT); | |
d62a17ae | 853 | p = ifc->address; |
854 | memset(&req, 0, sizeof req - NL_PKT_BUF_SIZE); | |
1fdc9eae | 855 | |
d62a17ae | 856 | bytelen = (family == AF_INET ? 4 : 16); |
1fdc9eae | 857 | |
d62a17ae | 858 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)); |
859 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
860 | req.n.nlmsg_type = cmd; | |
861 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
a55ba23f | 862 | |
d62a17ae | 863 | req.ifa.ifa_family = family; |
1fdc9eae | 864 | |
d62a17ae | 865 | req.ifa.ifa_index = ifp->ifindex; |
1fdc9eae | 866 | |
d62a17ae | 867 | addattr_l(&req.n, sizeof req, IFA_LOCAL, &p->u.prefix, bytelen); |
1fdc9eae | 868 | |
e8d19a05 DL |
869 | if (family == AF_INET) { |
870 | if (CONNECTED_PEER(ifc)) { | |
871 | p = ifc->destination; | |
60466a63 QY |
872 | addattr_l(&req.n, sizeof req, IFA_ADDRESS, &p->u.prefix, |
873 | bytelen); | |
e8d19a05 | 874 | } else if (cmd == RTM_NEWADDR && ifc->destination) { |
d62a17ae | 875 | p = ifc->destination; |
876 | addattr_l(&req.n, sizeof req, IFA_BROADCAST, | |
877 | &p->u.prefix, bytelen); | |
878 | } | |
879 | } | |
1fdc9eae | 880 | |
e8d19a05 DL |
881 | /* p is now either ifc->address or ifc->destination */ |
882 | req.ifa.ifa_prefixlen = p->prefixlen; | |
883 | ||
d62a17ae | 884 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) |
885 | SET_FLAG(req.ifa.ifa_flags, IFA_F_SECONDARY); | |
1fdc9eae | 886 | |
d62a17ae | 887 | if (ifc->label) |
888 | addattr_l(&req.n, sizeof req, IFA_LABEL, ifc->label, | |
889 | strlen(ifc->label) + 1); | |
1fdc9eae | 890 | |
d62a17ae | 891 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, |
892 | 0); | |
1fdc9eae | 893 | } |
894 | ||
d62a17ae | 895 | int kernel_address_add_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 896 | { |
d62a17ae | 897 | return netlink_address(RTM_NEWADDR, AF_INET, ifp, ifc); |
1fdc9eae | 898 | } |
899 | ||
d62a17ae | 900 | int kernel_address_delete_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 901 | { |
d62a17ae | 902 | return netlink_address(RTM_DELADDR, AF_INET, ifp, ifc); |
1fdc9eae | 903 | } |
904 | ||
996c9314 | 905 | int kernel_address_add_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 906 | { |
996c9314 | 907 | return netlink_address(RTM_NEWADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
908 | } |
909 | ||
996c9314 | 910 | int kernel_address_delete_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 911 | { |
996c9314 | 912 | return netlink_address(RTM_DELADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
913 | } |
914 | ||
2414abd3 | 915 | int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 916 | { |
d62a17ae | 917 | int len; |
918 | struct ifaddrmsg *ifa; | |
919 | struct rtattr *tb[IFA_MAX + 1]; | |
920 | struct interface *ifp; | |
921 | void *addr; | |
922 | void *broad; | |
d7c0a89a | 923 | uint8_t flags = 0; |
d62a17ae | 924 | char *label = NULL; |
925 | struct zebra_ns *zns; | |
926 | ||
927 | zns = zebra_ns_lookup(ns_id); | |
928 | ifa = NLMSG_DATA(h); | |
929 | ||
8a1b681c | 930 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { |
9df414fe | 931 | flog_warn( |
e914ccbe | 932 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
933 | "Invalid address family: %u received from kernel interface addr change: %s", |
934 | ifa->ifa_family, nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 935 | return 0; |
8a1b681c | 936 | } |
d62a17ae | 937 | |
938 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
939 | return 0; | |
940 | ||
941 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
9bdf8618 DS |
942 | if (len < 0) { |
943 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
944 | __PRETTY_FUNCTION__, | |
945 | h->nlmsg_len, | |
946 | (size_t)NLMSG_LENGTH(sizeof(struct ifaddrmsg))); | |
d62a17ae | 947 | return -1; |
9bdf8618 | 948 | } |
d62a17ae | 949 | |
950 | memset(tb, 0, sizeof tb); | |
951 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); | |
952 | ||
953 | ifp = if_lookup_by_index_per_ns(zns, ifa->ifa_index); | |
954 | if (ifp == NULL) { | |
af4c2728 | 955 | flog_err( |
450971aa | 956 | EC_LIB_INTERFACE, |
d62a17ae | 957 | "netlink_interface_addr can't find interface by index %d", |
958 | ifa->ifa_index); | |
959 | return -1; | |
960 | } | |
961 | ||
962 | if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */ | |
963 | { | |
964 | char buf[BUFSIZ]; | |
965 | zlog_debug("netlink_interface_addr %s %s flags 0x%x:", | |
966 | nl_msg_type_to_str(h->nlmsg_type), ifp->name, | |
967 | ifa->ifa_flags); | |
968 | if (tb[IFA_LOCAL]) | |
969 | zlog_debug(" IFA_LOCAL %s/%d", | |
970 | inet_ntop(ifa->ifa_family, | |
971 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
972 | BUFSIZ), | |
973 | ifa->ifa_prefixlen); | |
974 | if (tb[IFA_ADDRESS]) | |
975 | zlog_debug(" IFA_ADDRESS %s/%d", | |
976 | inet_ntop(ifa->ifa_family, | |
977 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
978 | BUFSIZ), | |
979 | ifa->ifa_prefixlen); | |
980 | if (tb[IFA_BROADCAST]) | |
981 | zlog_debug(" IFA_BROADCAST %s/%d", | |
982 | inet_ntop(ifa->ifa_family, | |
983 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
984 | BUFSIZ), | |
985 | ifa->ifa_prefixlen); | |
986 | if (tb[IFA_LABEL] && strcmp(ifp->name, RTA_DATA(tb[IFA_LABEL]))) | |
987 | zlog_debug(" IFA_LABEL %s", | |
988 | (char *)RTA_DATA(tb[IFA_LABEL])); | |
989 | ||
990 | if (tb[IFA_CACHEINFO]) { | |
991 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
992 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
993 | ci->ifa_prefered, ci->ifa_valid); | |
994 | } | |
995 | } | |
996 | ||
997 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
998 | if (tb[IFA_LOCAL] == NULL) | |
999 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
1000 | if (tb[IFA_ADDRESS] == NULL) | |
1001 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
1002 | ||
1003 | /* local interface address */ | |
1004 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
1005 | ||
1006 | /* is there a peer address? */ | |
1007 | if (tb[IFA_ADDRESS] | |
1008 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
1009 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
1010 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
1011 | SET_FLAG(flags, ZEBRA_IFA_PEER); | |
1012 | } else | |
1013 | /* seeking a broadcast address */ | |
1014 | broad = (tb[IFA_BROADCAST] ? RTA_DATA(tb[IFA_BROADCAST]) | |
1015 | : NULL); | |
1016 | ||
1017 | /* addr is primary key, SOL if we don't have one */ | |
1018 | if (addr == NULL) { | |
1019 | zlog_debug("%s: NULL address", __func__); | |
1020 | return -1; | |
1021 | } | |
1022 | ||
1023 | /* Flags. */ | |
1024 | if (ifa->ifa_flags & IFA_F_SECONDARY) | |
1025 | SET_FLAG(flags, ZEBRA_IFA_SECONDARY); | |
1026 | ||
1027 | /* Label */ | |
1028 | if (tb[IFA_LABEL]) | |
1029 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
1030 | ||
2e1cc436 | 1031 | if (label && strcmp(ifp->name, label) == 0) |
d62a17ae | 1032 | label = NULL; |
1033 | ||
1034 | /* Register interface address to the interface. */ | |
1035 | if (ifa->ifa_family == AF_INET) { | |
930571d2 | 1036 | if (ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { |
e17d9b2d | 1037 | zlog_err( |
87b5d1b0 DS |
1038 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1039 | ifa->ifa_prefixlen, | |
1040 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1041 | return -1; |
930571d2 | 1042 | } |
d62a17ae | 1043 | if (h->nlmsg_type == RTM_NEWADDR) |
1044 | connected_add_ipv4(ifp, flags, (struct in_addr *)addr, | |
1045 | ifa->ifa_prefixlen, | |
1046 | (struct in_addr *)broad, label); | |
1047 | else | |
1048 | connected_delete_ipv4( | |
1049 | ifp, flags, (struct in_addr *)addr, | |
1050 | ifa->ifa_prefixlen, (struct in_addr *)broad); | |
1051 | } | |
1052 | if (ifa->ifa_family == AF_INET6) { | |
930571d2 | 1053 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { |
e17d9b2d | 1054 | zlog_err( |
87b5d1b0 DS |
1055 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1056 | ifa->ifa_prefixlen, | |
1057 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1058 | return -1; |
930571d2 | 1059 | } |
d62a17ae | 1060 | if (h->nlmsg_type == RTM_NEWADDR) { |
1061 | /* Only consider valid addresses; we'll not get a | |
1062 | * notification from | |
1063 | * the kernel till IPv6 DAD has completed, but at init | |
1064 | * time, Quagga | |
1065 | * does query for and will receive all addresses. | |
1066 | */ | |
1067 | if (!(ifa->ifa_flags | |
1068 | & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) | |
60466a63 QY |
1069 | connected_add_ipv6(ifp, flags, |
1070 | (struct in6_addr *)addr, | |
60c0687a | 1071 | (struct in6_addr *)broad, |
60466a63 | 1072 | ifa->ifa_prefixlen, label); |
d62a17ae | 1073 | } else |
1074 | connected_delete_ipv6(ifp, (struct in6_addr *)addr, | |
60c0687a | 1075 | (struct in6_addr *)broad, |
608105a7 | 1076 | ifa->ifa_prefixlen); |
d62a17ae | 1077 | } |
1078 | ||
1079 | return 0; | |
1fdc9eae | 1080 | } |
1081 | ||
2414abd3 | 1082 | int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1083 | { |
d62a17ae | 1084 | int len; |
1085 | struct ifinfomsg *ifi; | |
1086 | struct rtattr *tb[IFLA_MAX + 1]; | |
1087 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1088 | struct interface *ifp; | |
1089 | char *name = NULL; | |
1090 | char *kind = NULL; | |
48884c6b | 1091 | char *desc = NULL; |
d62a17ae | 1092 | char *slave_kind = NULL; |
1093 | struct zebra_ns *zns; | |
1094 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1095 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
1096 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
1097 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 1098 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
d62a17ae | 1099 | ifindex_t link_ifindex = IFINDEX_INTERNAL; |
1100 | ||
1101 | ||
1102 | zns = zebra_ns_lookup(ns_id); | |
1103 | ifi = NLMSG_DATA(h); | |
1104 | ||
fe533c56 | 1105 | /* assume if not default zns, then new VRF */ |
d62a17ae | 1106 | if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) { |
1107 | /* If this is not link add/delete message so print warning. */ | |
87b5d1b0 DS |
1108 | zlog_debug("netlink_link_change: wrong kernel message %s", |
1109 | nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 1110 | return 0; |
1111 | } | |
1112 | ||
8a1b681c SW |
1113 | if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE |
1114 | || ifi->ifi_family == AF_INET6)) { | |
9df414fe | 1115 | flog_warn( |
e914ccbe | 1116 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
1117 | "Invalid address family: %u received from kernel link change: %s", |
1118 | ifi->ifi_family, nl_msg_type_to_str(h->nlmsg_type)); | |
8a1b681c SW |
1119 | return 0; |
1120 | } | |
1121 | ||
d62a17ae | 1122 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
9bdf8618 DS |
1123 | if (len < 0) { |
1124 | zlog_err("%s: Message received from netlink is of a broken size %d %zu", | |
1125 | __PRETTY_FUNCTION__, h->nlmsg_len, | |
1126 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 1127 | return -1; |
9bdf8618 | 1128 | } |
d62a17ae | 1129 | |
1130 | /* We are interested in some AF_BRIDGE notifications. */ | |
1131 | if (ifi->ifi_family == AF_BRIDGE) | |
1132 | return netlink_bridge_interface(h, len, ns_id, startup); | |
1133 | ||
1134 | /* Looking up interface name. */ | |
1135 | memset(tb, 0, sizeof tb); | |
1136 | memset(linkinfo, 0, sizeof linkinfo); | |
1137 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 1138 | |
d62a17ae | 1139 | /* check for wireless messages to ignore */ |
1140 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
1141 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1142 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
1143 | __func__); | |
1144 | return 0; | |
1145 | } | |
1fdc9eae | 1146 | |
d62a17ae | 1147 | if (tb[IFLA_IFNAME] == NULL) |
1148 | return -1; | |
1149 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 1150 | |
d62a17ae | 1151 | if (tb[IFLA_LINKINFO]) { |
1152 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 1153 | |
d62a17ae | 1154 | if (linkinfo[IFLA_INFO_KIND]) |
1155 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 1156 | |
d62a17ae | 1157 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
1158 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 1159 | |
d62a17ae | 1160 | netlink_determine_zebra_iftype(kind, &zif_type); |
1161 | } | |
6675513d | 1162 | |
d62a17ae | 1163 | /* If linking to another interface, note it. */ |
1164 | if (tb[IFLA_LINK]) | |
1165 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1fdc9eae | 1166 | |
48884c6b DS |
1167 | if (tb[IFLA_IFALIAS]) { |
1168 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
1169 | } | |
1170 | ||
d62a17ae | 1171 | /* If VRF, create or update the VRF structure itself. */ |
78dd30b2 | 1172 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 1173 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
1174 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
1175 | } | |
1fdc9eae | 1176 | |
d62a17ae | 1177 | /* See if interface is present. */ |
1178 | ifp = if_lookup_by_name_per_ns(zns, name); | |
1179 | ||
48884c6b DS |
1180 | if (ifp) { |
1181 | if (ifp->desc) | |
1182 | XFREE(MTYPE_TMP, ifp->desc); | |
1183 | if (desc) | |
1184 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
1185 | } | |
1186 | ||
d62a17ae | 1187 | if (h->nlmsg_type == RTM_NEWLINK) { |
1188 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
1189 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
1190 | && !vrf_is_backend_netns()) { | |
d62a17ae | 1191 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 1192 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 1193 | } else if (slave_kind |
1194 | && (strcmp(slave_kind, "bridge") == 0)) { | |
1195 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
1196 | bridge_ifindex = | |
1197 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
1198 | } else if (slave_kind |
1199 | && (strcmp(slave_kind, "bond") == 0)) { | |
1200 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
1201 | bond_ifindex = | |
1202 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 1203 | } else |
1204 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
1205 | } | |
fe533c56 PG |
1206 | if (vrf_is_backend_netns()) |
1207 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 1208 | if (ifp == NULL |
1209 | || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) { | |
1210 | /* Add interface notification from kernel */ | |
1211 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1212 | zlog_debug( | |
1213 | "RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d " | |
1214 | "sl_type %d master %u flags 0x%x", | |
1215 | name, ifi->ifi_index, vrf_id, zif_type, | |
1216 | zif_slave_type, bridge_ifindex, | |
1217 | ifi->ifi_flags); | |
1218 | ||
1219 | if (ifp == NULL) { | |
1220 | /* unknown interface */ | |
8f90d89b | 1221 | ifp = if_get_by_name(name, vrf_id); |
d62a17ae | 1222 | } else { |
1223 | /* pre-configured interface, learnt now */ | |
1224 | if (ifp->vrf_id != vrf_id) | |
1225 | if_update_to_new_vrf(ifp, vrf_id); | |
1226 | } | |
1227 | ||
1228 | /* Update interface information. */ | |
1229 | set_ifindex(ifp, ifi->ifi_index, zns); | |
1230 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d23b983b | 1231 | if (!tb[IFLA_MTU]) { |
9df414fe | 1232 | zlog_debug( |
d23b983b SW |
1233 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1234 | name, ifi->ifi_index); | |
1235 | return 0; | |
1236 | } | |
d62a17ae | 1237 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1238 | ifp->metric = 0; | |
1239 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
1240 | ||
1241 | /* Set interface type */ | |
1242 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
1243 | if (IS_ZEBRA_IF_VRF(ifp)) |
1244 | SET_FLAG(ifp->status, | |
1245 | ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 1246 | |
1247 | /* Update link. */ | |
680c278f | 1248 | zebra_if_update_link(ifp, link_ifindex, ns_id); |
d62a17ae | 1249 | |
1250 | netlink_interface_update_hw_addr(tb, ifp); | |
1251 | ||
1252 | /* Inform clients, install any configured addresses. */ | |
1253 | if_add_update(ifp); | |
1254 | ||
1255 | /* Extract and save L2 interface information, take | |
1256 | * additional actions. */ | |
1257 | netlink_interface_update_l2info( | |
1258 | ifp, linkinfo[IFLA_INFO_DATA], 1); | |
1259 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
1260 | zebra_l2if_update_bridge_slave(ifp, | |
1261 | bridge_ifindex); | |
b9368db9 DD |
1262 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
1263 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 1264 | } else if (ifp->vrf_id != vrf_id) { |
1265 | /* VRF change for an interface. */ | |
1266 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1267 | zlog_debug( | |
1268 | "RTM_NEWLINK vrf-change for %s(%u) " | |
1269 | "vrf_id %u -> %u flags 0x%x", | |
1270 | name, ifp->ifindex, ifp->vrf_id, vrf_id, | |
1271 | ifi->ifi_flags); | |
1272 | ||
1273 | if_handle_vrf_change(ifp, vrf_id); | |
1274 | } else { | |
b9368db9 | 1275 | bool was_bridge_slave, was_bond_slave; |
d62a17ae | 1276 | |
1277 | /* Interface update. */ | |
1278 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1279 | zlog_debug( | |
1280 | "RTM_NEWLINK update for %s(%u) " | |
1281 | "sl_type %d master %u flags 0x%x", | |
1282 | name, ifp->ifindex, zif_slave_type, | |
1283 | bridge_ifindex, ifi->ifi_flags); | |
1284 | ||
1285 | set_ifindex(ifp, ifi->ifi_index, zns); | |
d23b983b | 1286 | if (!tb[IFLA_MTU]) { |
9df414fe | 1287 | zlog_debug( |
d23b983b SW |
1288 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1289 | name, ifi->ifi_index); | |
1290 | return 0; | |
1291 | } | |
d62a17ae | 1292 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1293 | ifp->metric = 0; | |
1294 | ||
1295 | /* Update interface type - NOTE: Only slave_type can | |
1296 | * change. */ | |
1297 | was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp); | |
b9368db9 | 1298 | was_bond_slave = IS_ZEBRA_IF_BOND_SLAVE(ifp); |
d62a17ae | 1299 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); |
1300 | ||
1301 | netlink_interface_update_hw_addr(tb, ifp); | |
1302 | ||
1303 | if (if_is_no_ptm_operative(ifp)) { | |
1304 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1305 | if (!if_is_no_ptm_operative(ifp)) { | |
1306 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1307 | zlog_debug( | |
1308 | "Intf %s(%u) has gone DOWN", | |
1309 | name, ifp->ifindex); | |
1310 | if_down(ifp); | |
1311 | } else if (if_is_operative(ifp)) { | |
1312 | /* Must notify client daemons of new | |
1313 | * interface status. */ | |
1314 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1315 | zlog_debug( | |
1316 | "Intf %s(%u) PTM up, notifying clients", | |
1317 | name, ifp->ifindex); | |
1318 | zebra_interface_up_update(ifp); | |
1319 | } | |
1320 | } else { | |
1321 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1322 | if (if_is_operative(ifp)) { | |
1323 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1324 | zlog_debug( | |
1325 | "Intf %s(%u) has come UP", | |
1326 | name, ifp->ifindex); | |
1327 | if_up(ifp); | |
1328 | } | |
1329 | } | |
1330 | ||
1331 | /* Extract and save L2 interface information, take | |
1332 | * additional actions. */ | |
1333 | netlink_interface_update_l2info( | |
1334 | ifp, linkinfo[IFLA_INFO_DATA], 0); | |
1335 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave) | |
1336 | zebra_l2if_update_bridge_slave(ifp, | |
1337 | bridge_ifindex); | |
b9368db9 DD |
1338 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp) || was_bond_slave) |
1339 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 1340 | } |
1341 | } else { | |
1342 | /* Delete interface notification from kernel */ | |
1343 | if (ifp == NULL) { | |
9df414fe QY |
1344 | if (IS_ZEBRA_DEBUG_KERNEL) |
1345 | zlog_debug( | |
1346 | "RTM_DELLINK for unknown interface %s(%u)", | |
1347 | name, ifi->ifi_index); | |
d62a17ae | 1348 | return 0; |
1349 | } | |
1350 | ||
1351 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1352 | zlog_debug("RTM_DELLINK for %s(%u)", name, | |
1353 | ifp->ifindex); | |
1354 | ||
1355 | UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
1356 | ||
1357 | /* Special handling for bridge or VxLAN interfaces. */ | |
1358 | if (IS_ZEBRA_IF_BRIDGE(ifp)) | |
1359 | zebra_l2_bridge_del(ifp); | |
1360 | else if (IS_ZEBRA_IF_VXLAN(ifp)) | |
1361 | zebra_l2_vxlanif_del(ifp); | |
1362 | ||
1363 | if (!IS_ZEBRA_IF_VRF(ifp)) | |
1364 | if_delete_update(ifp); | |
1fdc9eae | 1365 | } |
1366 | ||
d62a17ae | 1367 | return 0; |
1fdc9eae | 1368 | } |
718e3744 | 1369 | |
1370 | /* Interface information read by netlink. */ | |
d62a17ae | 1371 | void interface_list(struct zebra_ns *zns) |
718e3744 | 1372 | { |
d62a17ae | 1373 | interface_lookup_netlink(zns); |
718e3744 | 1374 | } |
ddfeb486 DL |
1375 | |
1376 | #endif /* GNU_LINUX */ |