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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) { |
f767cee4 | 402 | if (errno != EOPNOTSUPP && IS_ZEBRA_DEBUG_KERNEL) |
bd7d0299 DS |
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; | |
718f9b0f | 734 | req.n.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; |
d62a17ae | 735 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
736 | req.ifm.ifi_family = family; | |
737 | ||
738 | /* Include filter, if specified. */ | |
739 | if (filter_mask) | |
740 | addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filter_mask); | |
741 | ||
85a75f1e | 742 | return netlink_request(netlink_cmd, &req.n); |
289602d7 | 743 | } |
744 | ||
1fdc9eae | 745 | /* Interface lookup by netlink socket. */ |
d62a17ae | 746 | int interface_lookup_netlink(struct zebra_ns *zns) |
1fdc9eae | 747 | { |
d62a17ae | 748 | int ret; |
85a75f1e MS |
749 | struct zebra_dplane_info dp_info; |
750 | struct nlsock *netlink_cmd = &zns->netlink_cmd; | |
751 | ||
752 | /* Capture key info from ns struct */ | |
753 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
d62a17ae | 754 | |
755 | /* Get interface information. */ | |
85a75f1e | 756 | ret = netlink_request_intf_addr(netlink_cmd, AF_PACKET, RTM_GETLINK, 0); |
d62a17ae | 757 | if (ret < 0) |
758 | return ret; | |
85a75f1e | 759 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 760 | 1); |
761 | if (ret < 0) | |
762 | return ret; | |
763 | ||
764 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 765 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 766 | RTEXT_FILTER_BRVLAN); |
767 | if (ret < 0) | |
768 | return ret; | |
85a75f1e | 769 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 770 | 0); |
771 | if (ret < 0) | |
772 | return ret; | |
773 | ||
774 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 775 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 776 | RTEXT_FILTER_BRVLAN); |
777 | if (ret < 0) | |
778 | return ret; | |
85a75f1e | 779 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 780 | 0); |
781 | if (ret < 0) | |
782 | return ret; | |
783 | ||
520ebf72 AK |
784 | /* fixup linkages */ |
785 | zebra_if_update_all_links(); | |
786 | ||
d62a17ae | 787 | /* Get IPv4 address of the interfaces. */ |
85a75f1e | 788 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET, RTM_GETADDR, 0); |
d62a17ae | 789 | if (ret < 0) |
790 | return ret; | |
85a75f1e | 791 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 792 | 0, 1); |
793 | if (ret < 0) | |
794 | return ret; | |
795 | ||
796 | /* Get IPv6 address of the interfaces. */ | |
85a75f1e | 797 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET6, RTM_GETADDR, 0); |
d62a17ae | 798 | if (ret < 0) |
799 | return ret; | |
85a75f1e | 800 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 801 | 0, 1); |
802 | if (ret < 0) | |
803 | return ret; | |
804 | ||
805 | return 0; | |
1fdc9eae | 806 | } |
807 | ||
e0ae31b8 DS |
808 | int kernel_interface_set_master(struct interface *master, |
809 | struct interface *slave) | |
810 | { | |
811 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
812 | ||
813 | struct { | |
814 | struct nlmsghdr n; | |
815 | struct ifinfomsg ifa; | |
816 | char buf[NL_PKT_BUF_SIZE]; | |
817 | } req; | |
818 | ||
819 | memset(&req, 0, sizeof req); | |
820 | ||
821 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
822 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
823 | req.n.nlmsg_type = RTM_SETLINK; | |
824 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
825 | ||
826 | req.ifa.ifi_index = slave->ifindex; | |
827 | ||
828 | addattr_l(&req.n, sizeof req, IFLA_MASTER, &master->ifindex, 4); | |
829 | addattr_l(&req.n, sizeof req, IFLA_LINK, &slave->ifindex, 4); | |
830 | ||
831 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
832 | 0); | |
833 | } | |
834 | ||
1fdc9eae | 835 | /* Interface address modification. */ |
d62a17ae | 836 | static int netlink_address(int cmd, int family, struct interface *ifp, |
837 | struct connected *ifc) | |
1fdc9eae | 838 | { |
d62a17ae | 839 | int bytelen; |
840 | struct prefix *p; | |
1fdc9eae | 841 | |
d62a17ae | 842 | struct { |
843 | struct nlmsghdr n; | |
844 | struct ifaddrmsg ifa; | |
845 | char buf[NL_PKT_BUF_SIZE]; | |
846 | } req; | |
1fdc9eae | 847 | |
fe533c56 | 848 | struct zebra_ns *zns; |
1fdc9eae | 849 | |
fe533c56 PG |
850 | if (vrf_is_backend_netns()) |
851 | zns = zebra_ns_lookup((ns_id_t)ifp->vrf_id); | |
852 | else | |
853 | zns = zebra_ns_lookup(NS_DEFAULT); | |
d62a17ae | 854 | p = ifc->address; |
855 | memset(&req, 0, sizeof req - NL_PKT_BUF_SIZE); | |
1fdc9eae | 856 | |
d62a17ae | 857 | bytelen = (family == AF_INET ? 4 : 16); |
1fdc9eae | 858 | |
d62a17ae | 859 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)); |
860 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
861 | req.n.nlmsg_type = cmd; | |
862 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
a55ba23f | 863 | |
d62a17ae | 864 | req.ifa.ifa_family = family; |
1fdc9eae | 865 | |
d62a17ae | 866 | req.ifa.ifa_index = ifp->ifindex; |
1fdc9eae | 867 | |
d62a17ae | 868 | addattr_l(&req.n, sizeof req, IFA_LOCAL, &p->u.prefix, bytelen); |
1fdc9eae | 869 | |
e8d19a05 DL |
870 | if (family == AF_INET) { |
871 | if (CONNECTED_PEER(ifc)) { | |
872 | p = ifc->destination; | |
60466a63 QY |
873 | addattr_l(&req.n, sizeof req, IFA_ADDRESS, &p->u.prefix, |
874 | bytelen); | |
e8d19a05 | 875 | } else if (cmd == RTM_NEWADDR && ifc->destination) { |
d62a17ae | 876 | p = ifc->destination; |
877 | addattr_l(&req.n, sizeof req, IFA_BROADCAST, | |
878 | &p->u.prefix, bytelen); | |
879 | } | |
880 | } | |
1fdc9eae | 881 | |
e8d19a05 DL |
882 | /* p is now either ifc->address or ifc->destination */ |
883 | req.ifa.ifa_prefixlen = p->prefixlen; | |
884 | ||
d62a17ae | 885 | if (CHECK_FLAG(ifc->flags, ZEBRA_IFA_SECONDARY)) |
886 | SET_FLAG(req.ifa.ifa_flags, IFA_F_SECONDARY); | |
1fdc9eae | 887 | |
d62a17ae | 888 | if (ifc->label) |
889 | addattr_l(&req.n, sizeof req, IFA_LABEL, ifc->label, | |
890 | strlen(ifc->label) + 1); | |
1fdc9eae | 891 | |
d62a17ae | 892 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, |
893 | 0); | |
1fdc9eae | 894 | } |
895 | ||
d62a17ae | 896 | int kernel_address_add_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 897 | { |
d62a17ae | 898 | return netlink_address(RTM_NEWADDR, AF_INET, ifp, ifc); |
1fdc9eae | 899 | } |
900 | ||
d62a17ae | 901 | int kernel_address_delete_ipv4(struct interface *ifp, struct connected *ifc) |
1fdc9eae | 902 | { |
d62a17ae | 903 | return netlink_address(RTM_DELADDR, AF_INET, ifp, ifc); |
1fdc9eae | 904 | } |
905 | ||
996c9314 | 906 | int kernel_address_add_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 907 | { |
996c9314 | 908 | return netlink_address(RTM_NEWADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
909 | } |
910 | ||
996c9314 | 911 | int kernel_address_delete_ipv6(struct interface *ifp, struct connected *ifc) |
e86b71f1 | 912 | { |
996c9314 | 913 | return netlink_address(RTM_DELADDR, AF_INET6, ifp, ifc); |
e86b71f1 PG |
914 | } |
915 | ||
2414abd3 | 916 | int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 917 | { |
d62a17ae | 918 | int len; |
919 | struct ifaddrmsg *ifa; | |
920 | struct rtattr *tb[IFA_MAX + 1]; | |
921 | struct interface *ifp; | |
922 | void *addr; | |
923 | void *broad; | |
d7c0a89a | 924 | uint8_t flags = 0; |
d62a17ae | 925 | char *label = NULL; |
926 | struct zebra_ns *zns; | |
cde1af84 | 927 | uint32_t metric = METRIC_MAX; |
d62a17ae | 928 | |
929 | zns = zebra_ns_lookup(ns_id); | |
930 | ifa = NLMSG_DATA(h); | |
931 | ||
8a1b681c | 932 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { |
9df414fe | 933 | flog_warn( |
e914ccbe | 934 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
935 | "Invalid address family: %u received from kernel interface addr change: %s", |
936 | ifa->ifa_family, nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 937 | return 0; |
8a1b681c | 938 | } |
d62a17ae | 939 | |
940 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
941 | return 0; | |
942 | ||
943 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
9bdf8618 DS |
944 | if (len < 0) { |
945 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
946 | __PRETTY_FUNCTION__, | |
947 | h->nlmsg_len, | |
948 | (size_t)NLMSG_LENGTH(sizeof(struct ifaddrmsg))); | |
d62a17ae | 949 | return -1; |
9bdf8618 | 950 | } |
d62a17ae | 951 | |
952 | memset(tb, 0, sizeof tb); | |
953 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); | |
954 | ||
955 | ifp = if_lookup_by_index_per_ns(zns, ifa->ifa_index); | |
956 | if (ifp == NULL) { | |
af4c2728 | 957 | flog_err( |
450971aa | 958 | EC_LIB_INTERFACE, |
d62a17ae | 959 | "netlink_interface_addr can't find interface by index %d", |
960 | ifa->ifa_index); | |
961 | return -1; | |
962 | } | |
963 | ||
964 | if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */ | |
965 | { | |
966 | char buf[BUFSIZ]; | |
967 | zlog_debug("netlink_interface_addr %s %s flags 0x%x:", | |
968 | nl_msg_type_to_str(h->nlmsg_type), ifp->name, | |
969 | ifa->ifa_flags); | |
970 | if (tb[IFA_LOCAL]) | |
971 | zlog_debug(" IFA_LOCAL %s/%d", | |
972 | inet_ntop(ifa->ifa_family, | |
973 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
974 | BUFSIZ), | |
975 | ifa->ifa_prefixlen); | |
976 | if (tb[IFA_ADDRESS]) | |
977 | zlog_debug(" IFA_ADDRESS %s/%d", | |
978 | inet_ntop(ifa->ifa_family, | |
979 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
980 | BUFSIZ), | |
981 | ifa->ifa_prefixlen); | |
982 | if (tb[IFA_BROADCAST]) | |
983 | zlog_debug(" IFA_BROADCAST %s/%d", | |
984 | inet_ntop(ifa->ifa_family, | |
985 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
986 | BUFSIZ), | |
987 | ifa->ifa_prefixlen); | |
988 | if (tb[IFA_LABEL] && strcmp(ifp->name, RTA_DATA(tb[IFA_LABEL]))) | |
989 | zlog_debug(" IFA_LABEL %s", | |
990 | (char *)RTA_DATA(tb[IFA_LABEL])); | |
991 | ||
992 | if (tb[IFA_CACHEINFO]) { | |
993 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
994 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
995 | ci->ifa_prefered, ci->ifa_valid); | |
996 | } | |
997 | } | |
998 | ||
999 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
1000 | if (tb[IFA_LOCAL] == NULL) | |
1001 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
1002 | if (tb[IFA_ADDRESS] == NULL) | |
1003 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
1004 | ||
1005 | /* local interface address */ | |
1006 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
1007 | ||
1008 | /* is there a peer address? */ | |
1009 | if (tb[IFA_ADDRESS] | |
1010 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
1011 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
1012 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
1013 | SET_FLAG(flags, ZEBRA_IFA_PEER); | |
1014 | } else | |
1015 | /* seeking a broadcast address */ | |
1016 | broad = (tb[IFA_BROADCAST] ? RTA_DATA(tb[IFA_BROADCAST]) | |
1017 | : NULL); | |
1018 | ||
1019 | /* addr is primary key, SOL if we don't have one */ | |
1020 | if (addr == NULL) { | |
1021 | zlog_debug("%s: NULL address", __func__); | |
1022 | return -1; | |
1023 | } | |
1024 | ||
1025 | /* Flags. */ | |
1026 | if (ifa->ifa_flags & IFA_F_SECONDARY) | |
1027 | SET_FLAG(flags, ZEBRA_IFA_SECONDARY); | |
1028 | ||
1029 | /* Label */ | |
1030 | if (tb[IFA_LABEL]) | |
1031 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
1032 | ||
2e1cc436 | 1033 | if (label && strcmp(ifp->name, label) == 0) |
d62a17ae | 1034 | label = NULL; |
1035 | ||
cde1af84 AK |
1036 | if (tb[IFA_RT_PRIORITY]) |
1037 | metric = *(uint32_t *)RTA_DATA(tb[IFA_RT_PRIORITY]); | |
1038 | ||
d62a17ae | 1039 | /* Register interface address to the interface. */ |
1040 | if (ifa->ifa_family == AF_INET) { | |
930571d2 | 1041 | if (ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { |
e17d9b2d | 1042 | zlog_err( |
87b5d1b0 DS |
1043 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1044 | ifa->ifa_prefixlen, | |
1045 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1046 | return -1; |
930571d2 | 1047 | } |
d62a17ae | 1048 | if (h->nlmsg_type == RTM_NEWADDR) |
1049 | connected_add_ipv4(ifp, flags, (struct in_addr *)addr, | |
1050 | ifa->ifa_prefixlen, | |
cde1af84 AK |
1051 | (struct in_addr *)broad, label, |
1052 | metric); | |
d62a17ae | 1053 | else |
1054 | connected_delete_ipv4( | |
1055 | ifp, flags, (struct in_addr *)addr, | |
1056 | ifa->ifa_prefixlen, (struct in_addr *)broad); | |
1057 | } | |
1058 | if (ifa->ifa_family == AF_INET6) { | |
930571d2 | 1059 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { |
e17d9b2d | 1060 | zlog_err( |
87b5d1b0 DS |
1061 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1062 | ifa->ifa_prefixlen, | |
1063 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1064 | return -1; |
930571d2 | 1065 | } |
d62a17ae | 1066 | if (h->nlmsg_type == RTM_NEWADDR) { |
1067 | /* Only consider valid addresses; we'll not get a | |
1068 | * notification from | |
1069 | * the kernel till IPv6 DAD has completed, but at init | |
1070 | * time, Quagga | |
1071 | * does query for and will receive all addresses. | |
1072 | */ | |
1073 | if (!(ifa->ifa_flags | |
1074 | & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) | |
60466a63 QY |
1075 | connected_add_ipv6(ifp, flags, |
1076 | (struct in6_addr *)addr, | |
60c0687a | 1077 | (struct in6_addr *)broad, |
cde1af84 AK |
1078 | ifa->ifa_prefixlen, label, |
1079 | metric); | |
d62a17ae | 1080 | } else |
1081 | connected_delete_ipv6(ifp, (struct in6_addr *)addr, | |
60c0687a | 1082 | (struct in6_addr *)broad, |
608105a7 | 1083 | ifa->ifa_prefixlen); |
d62a17ae | 1084 | } |
1085 | ||
1086 | return 0; | |
1fdc9eae | 1087 | } |
1088 | ||
2414abd3 | 1089 | int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1090 | { |
d62a17ae | 1091 | int len; |
1092 | struct ifinfomsg *ifi; | |
1093 | struct rtattr *tb[IFLA_MAX + 1]; | |
1094 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1095 | struct interface *ifp; | |
1096 | char *name = NULL; | |
1097 | char *kind = NULL; | |
48884c6b | 1098 | char *desc = NULL; |
d62a17ae | 1099 | char *slave_kind = NULL; |
1100 | struct zebra_ns *zns; | |
1101 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1102 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
1103 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
1104 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 1105 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
d62a17ae | 1106 | ifindex_t link_ifindex = IFINDEX_INTERNAL; |
1107 | ||
1108 | ||
1109 | zns = zebra_ns_lookup(ns_id); | |
1110 | ifi = NLMSG_DATA(h); | |
1111 | ||
fe533c56 | 1112 | /* assume if not default zns, then new VRF */ |
d62a17ae | 1113 | if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) { |
1114 | /* If this is not link add/delete message so print warning. */ | |
87b5d1b0 DS |
1115 | zlog_debug("netlink_link_change: wrong kernel message %s", |
1116 | nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 1117 | return 0; |
1118 | } | |
1119 | ||
8a1b681c SW |
1120 | if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE |
1121 | || ifi->ifi_family == AF_INET6)) { | |
9df414fe | 1122 | flog_warn( |
e914ccbe | 1123 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
1124 | "Invalid address family: %u received from kernel link change: %s", |
1125 | ifi->ifi_family, nl_msg_type_to_str(h->nlmsg_type)); | |
8a1b681c SW |
1126 | return 0; |
1127 | } | |
1128 | ||
d62a17ae | 1129 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
9bdf8618 DS |
1130 | if (len < 0) { |
1131 | zlog_err("%s: Message received from netlink is of a broken size %d %zu", | |
1132 | __PRETTY_FUNCTION__, h->nlmsg_len, | |
1133 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 1134 | return -1; |
9bdf8618 | 1135 | } |
d62a17ae | 1136 | |
1137 | /* We are interested in some AF_BRIDGE notifications. */ | |
1138 | if (ifi->ifi_family == AF_BRIDGE) | |
1139 | return netlink_bridge_interface(h, len, ns_id, startup); | |
1140 | ||
1141 | /* Looking up interface name. */ | |
1142 | memset(tb, 0, sizeof tb); | |
1143 | memset(linkinfo, 0, sizeof linkinfo); | |
1144 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 1145 | |
d62a17ae | 1146 | /* check for wireless messages to ignore */ |
1147 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
1148 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1149 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
1150 | __func__); | |
1151 | return 0; | |
1152 | } | |
1fdc9eae | 1153 | |
d62a17ae | 1154 | if (tb[IFLA_IFNAME] == NULL) |
1155 | return -1; | |
1156 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 1157 | |
d62a17ae | 1158 | if (tb[IFLA_LINKINFO]) { |
1159 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 1160 | |
d62a17ae | 1161 | if (linkinfo[IFLA_INFO_KIND]) |
1162 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 1163 | |
d62a17ae | 1164 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
1165 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 1166 | |
d62a17ae | 1167 | netlink_determine_zebra_iftype(kind, &zif_type); |
1168 | } | |
6675513d | 1169 | |
d62a17ae | 1170 | /* If linking to another interface, note it. */ |
1171 | if (tb[IFLA_LINK]) | |
1172 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1fdc9eae | 1173 | |
48884c6b DS |
1174 | if (tb[IFLA_IFALIAS]) { |
1175 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
1176 | } | |
1177 | ||
d62a17ae | 1178 | /* If VRF, create or update the VRF structure itself. */ |
78dd30b2 | 1179 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 1180 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
1181 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
1182 | } | |
1fdc9eae | 1183 | |
d62a17ae | 1184 | /* See if interface is present. */ |
1185 | ifp = if_lookup_by_name_per_ns(zns, name); | |
1186 | ||
48884c6b DS |
1187 | if (ifp) { |
1188 | if (ifp->desc) | |
1189 | XFREE(MTYPE_TMP, ifp->desc); | |
1190 | if (desc) | |
1191 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
1192 | } | |
1193 | ||
d62a17ae | 1194 | if (h->nlmsg_type == RTM_NEWLINK) { |
1195 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
1196 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
1197 | && !vrf_is_backend_netns()) { | |
d62a17ae | 1198 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 1199 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 1200 | } else if (slave_kind |
1201 | && (strcmp(slave_kind, "bridge") == 0)) { | |
1202 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
1203 | bridge_ifindex = | |
1204 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
1205 | } else if (slave_kind |
1206 | && (strcmp(slave_kind, "bond") == 0)) { | |
1207 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
1208 | bond_ifindex = | |
1209 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 1210 | } else |
1211 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
1212 | } | |
fe533c56 PG |
1213 | if (vrf_is_backend_netns()) |
1214 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 1215 | if (ifp == NULL |
1216 | || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) { | |
1217 | /* Add interface notification from kernel */ | |
1218 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1219 | zlog_debug( | |
1220 | "RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d " | |
1221 | "sl_type %d master %u flags 0x%x", | |
1222 | name, ifi->ifi_index, vrf_id, zif_type, | |
1223 | zif_slave_type, bridge_ifindex, | |
1224 | ifi->ifi_flags); | |
1225 | ||
1226 | if (ifp == NULL) { | |
1227 | /* unknown interface */ | |
8f90d89b | 1228 | ifp = if_get_by_name(name, vrf_id); |
d62a17ae | 1229 | } else { |
1230 | /* pre-configured interface, learnt now */ | |
1231 | if (ifp->vrf_id != vrf_id) | |
1232 | if_update_to_new_vrf(ifp, vrf_id); | |
1233 | } | |
1234 | ||
1235 | /* Update interface information. */ | |
1236 | set_ifindex(ifp, ifi->ifi_index, zns); | |
1237 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d23b983b | 1238 | if (!tb[IFLA_MTU]) { |
9df414fe | 1239 | zlog_debug( |
d23b983b SW |
1240 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1241 | name, ifi->ifi_index); | |
1242 | return 0; | |
1243 | } | |
d62a17ae | 1244 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1245 | ifp->metric = 0; | |
1246 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
1247 | ||
1248 | /* Set interface type */ | |
1249 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
1250 | if (IS_ZEBRA_IF_VRF(ifp)) |
1251 | SET_FLAG(ifp->status, | |
1252 | ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 1253 | |
1254 | /* Update link. */ | |
680c278f | 1255 | zebra_if_update_link(ifp, link_ifindex, ns_id); |
d62a17ae | 1256 | |
1257 | netlink_interface_update_hw_addr(tb, ifp); | |
1258 | ||
1259 | /* Inform clients, install any configured addresses. */ | |
1260 | if_add_update(ifp); | |
1261 | ||
1262 | /* Extract and save L2 interface information, take | |
1263 | * additional actions. */ | |
1264 | netlink_interface_update_l2info( | |
1265 | ifp, linkinfo[IFLA_INFO_DATA], 1); | |
1266 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
1267 | zebra_l2if_update_bridge_slave(ifp, | |
1268 | bridge_ifindex); | |
b9368db9 DD |
1269 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
1270 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 1271 | } else if (ifp->vrf_id != vrf_id) { |
1272 | /* VRF change for an interface. */ | |
1273 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1274 | zlog_debug( | |
1275 | "RTM_NEWLINK vrf-change for %s(%u) " | |
1276 | "vrf_id %u -> %u flags 0x%x", | |
1277 | name, ifp->ifindex, ifp->vrf_id, vrf_id, | |
1278 | ifi->ifi_flags); | |
1279 | ||
1280 | if_handle_vrf_change(ifp, vrf_id); | |
1281 | } else { | |
b9368db9 | 1282 | bool was_bridge_slave, was_bond_slave; |
d62a17ae | 1283 | |
1284 | /* Interface update. */ | |
1285 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1286 | zlog_debug( | |
1287 | "RTM_NEWLINK update for %s(%u) " | |
1288 | "sl_type %d master %u flags 0x%x", | |
1289 | name, ifp->ifindex, zif_slave_type, | |
1290 | bridge_ifindex, ifi->ifi_flags); | |
1291 | ||
1292 | set_ifindex(ifp, ifi->ifi_index, zns); | |
d23b983b | 1293 | if (!tb[IFLA_MTU]) { |
9df414fe | 1294 | zlog_debug( |
d23b983b SW |
1295 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1296 | name, ifi->ifi_index); | |
1297 | return 0; | |
1298 | } | |
d62a17ae | 1299 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1300 | ifp->metric = 0; | |
1301 | ||
1302 | /* Update interface type - NOTE: Only slave_type can | |
1303 | * change. */ | |
1304 | was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp); | |
b9368db9 | 1305 | was_bond_slave = IS_ZEBRA_IF_BOND_SLAVE(ifp); |
d62a17ae | 1306 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); |
1307 | ||
1308 | netlink_interface_update_hw_addr(tb, ifp); | |
1309 | ||
1310 | if (if_is_no_ptm_operative(ifp)) { | |
1311 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1312 | if (!if_is_no_ptm_operative(ifp)) { | |
1313 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1314 | zlog_debug( | |
1315 | "Intf %s(%u) has gone DOWN", | |
1316 | name, ifp->ifindex); | |
1317 | if_down(ifp); | |
1318 | } else if (if_is_operative(ifp)) { | |
1319 | /* Must notify client daemons of new | |
1320 | * interface status. */ | |
1321 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1322 | zlog_debug( | |
1323 | "Intf %s(%u) PTM up, notifying clients", | |
1324 | name, ifp->ifindex); | |
1325 | zebra_interface_up_update(ifp); | |
1326 | } | |
1327 | } else { | |
1328 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1329 | if (if_is_operative(ifp)) { | |
1330 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1331 | zlog_debug( | |
1332 | "Intf %s(%u) has come UP", | |
1333 | name, ifp->ifindex); | |
1334 | if_up(ifp); | |
1335 | } | |
1336 | } | |
1337 | ||
1338 | /* Extract and save L2 interface information, take | |
1339 | * additional actions. */ | |
1340 | netlink_interface_update_l2info( | |
1341 | ifp, linkinfo[IFLA_INFO_DATA], 0); | |
1342 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave) | |
1343 | zebra_l2if_update_bridge_slave(ifp, | |
1344 | bridge_ifindex); | |
b9368db9 DD |
1345 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp) || was_bond_slave) |
1346 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 1347 | } |
1348 | } else { | |
1349 | /* Delete interface notification from kernel */ | |
1350 | if (ifp == NULL) { | |
9df414fe QY |
1351 | if (IS_ZEBRA_DEBUG_KERNEL) |
1352 | zlog_debug( | |
1353 | "RTM_DELLINK for unknown interface %s(%u)", | |
1354 | name, ifi->ifi_index); | |
d62a17ae | 1355 | return 0; |
1356 | } | |
1357 | ||
1358 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1359 | zlog_debug("RTM_DELLINK for %s(%u)", name, | |
1360 | ifp->ifindex); | |
1361 | ||
1362 | UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
1363 | ||
1364 | /* Special handling for bridge or VxLAN interfaces. */ | |
1365 | if (IS_ZEBRA_IF_BRIDGE(ifp)) | |
1366 | zebra_l2_bridge_del(ifp); | |
1367 | else if (IS_ZEBRA_IF_VXLAN(ifp)) | |
1368 | zebra_l2_vxlanif_del(ifp); | |
1369 | ||
1370 | if (!IS_ZEBRA_IF_VRF(ifp)) | |
1371 | if_delete_update(ifp); | |
1fdc9eae | 1372 | } |
1373 | ||
d62a17ae | 1374 | return 0; |
1fdc9eae | 1375 | } |
718e3744 | 1376 | |
1377 | /* Interface information read by netlink. */ | |
d62a17ae | 1378 | void interface_list(struct zebra_ns *zns) |
718e3744 | 1379 | { |
d62a17ae | 1380 | interface_lookup_netlink(zns); |
718e3744 | 1381 | } |
ddfeb486 DL |
1382 | |
1383 | #endif /* GNU_LINUX */ |