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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" |
97c4e1d0 | 71 | #include "zebra/zebra_vxlan.h" |
1fdc9eae | 72 | |
0268f30e | 73 | extern struct zebra_privs_t zserv_privs; |
1fdc9eae | 74 | |
75 | /* Note: on netlink systems, there should be a 1-to-1 mapping between interface | |
76 | names and ifindex values. */ | |
d62a17ae | 77 | static void set_ifindex(struct interface *ifp, ifindex_t ifi_index, |
78 | struct zebra_ns *zns) | |
1fdc9eae | 79 | { |
d62a17ae | 80 | struct interface *oifp; |
81 | ||
82 | if (((oifp = if_lookup_by_index_per_ns(zns, ifi_index)) != NULL) | |
83 | && (oifp != ifp)) { | |
84 | if (ifi_index == IFINDEX_INTERNAL) | |
af4c2728 | 85 | flog_err( |
450971aa | 86 | EC_LIB_INTERFACE, |
4d43f68a | 87 | "Netlink is setting interface %s ifindex to reserved internal value %u", |
d62a17ae | 88 | ifp->name, ifi_index); |
89 | else { | |
90 | if (IS_ZEBRA_DEBUG_KERNEL) | |
91 | zlog_debug( | |
92 | "interface index %d was renamed from %s to %s", | |
93 | ifi_index, oifp->name, ifp->name); | |
94 | if (if_is_up(oifp)) | |
af4c2728 | 95 | flog_err( |
450971aa | 96 | EC_LIB_INTERFACE, |
4d43f68a | 97 | "interface rename detected on up interface: index %d was renamed from %s to %s, results are uncertain!", |
d62a17ae | 98 | ifi_index, oifp->name, ifp->name); |
99 | if_delete_update(oifp); | |
100 | } | |
101 | } | |
ff880b78 | 102 | if_set_index(ifp, ifi_index); |
1fdc9eae | 103 | } |
104 | ||
105 | /* Utility function to parse hardware link-layer address and update ifp */ | |
d62a17ae | 106 | static void netlink_interface_update_hw_addr(struct rtattr **tb, |
107 | struct interface *ifp) | |
1fdc9eae | 108 | { |
d62a17ae | 109 | int i; |
110 | ||
111 | if (tb[IFLA_ADDRESS]) { | |
112 | int hw_addr_len; | |
113 | ||
114 | hw_addr_len = RTA_PAYLOAD(tb[IFLA_ADDRESS]); | |
115 | ||
116 | if (hw_addr_len > INTERFACE_HWADDR_MAX) | |
9df414fe QY |
117 | zlog_debug("Hardware address is too large: %d", |
118 | hw_addr_len); | |
d62a17ae | 119 | else { |
120 | ifp->hw_addr_len = hw_addr_len; | |
121 | memcpy(ifp->hw_addr, RTA_DATA(tb[IFLA_ADDRESS]), | |
122 | hw_addr_len); | |
123 | ||
124 | for (i = 0; i < hw_addr_len; i++) | |
125 | if (ifp->hw_addr[i] != 0) | |
126 | break; | |
127 | ||
128 | if (i == hw_addr_len) | |
129 | ifp->hw_addr_len = 0; | |
130 | else | |
131 | ifp->hw_addr_len = hw_addr_len; | |
132 | } | |
133 | } | |
1fdc9eae | 134 | } |
135 | ||
d62a17ae | 136 | static enum zebra_link_type netlink_to_zebra_link_type(unsigned int hwt) |
1fdc9eae | 137 | { |
d62a17ae | 138 | switch (hwt) { |
139 | case ARPHRD_ETHER: | |
140 | return ZEBRA_LLT_ETHER; | |
141 | case ARPHRD_EETHER: | |
142 | return ZEBRA_LLT_EETHER; | |
143 | case ARPHRD_AX25: | |
144 | return ZEBRA_LLT_AX25; | |
145 | case ARPHRD_PRONET: | |
146 | return ZEBRA_LLT_PRONET; | |
147 | case ARPHRD_IEEE802: | |
148 | return ZEBRA_LLT_IEEE802; | |
149 | case ARPHRD_ARCNET: | |
150 | return ZEBRA_LLT_ARCNET; | |
151 | case ARPHRD_APPLETLK: | |
152 | return ZEBRA_LLT_APPLETLK; | |
153 | case ARPHRD_DLCI: | |
154 | return ZEBRA_LLT_DLCI; | |
155 | case ARPHRD_ATM: | |
156 | return ZEBRA_LLT_ATM; | |
157 | case ARPHRD_METRICOM: | |
158 | return ZEBRA_LLT_METRICOM; | |
159 | case ARPHRD_IEEE1394: | |
160 | return ZEBRA_LLT_IEEE1394; | |
161 | case ARPHRD_EUI64: | |
162 | return ZEBRA_LLT_EUI64; | |
163 | case ARPHRD_INFINIBAND: | |
164 | return ZEBRA_LLT_INFINIBAND; | |
165 | case ARPHRD_SLIP: | |
166 | return ZEBRA_LLT_SLIP; | |
167 | case ARPHRD_CSLIP: | |
168 | return ZEBRA_LLT_CSLIP; | |
169 | case ARPHRD_SLIP6: | |
170 | return ZEBRA_LLT_SLIP6; | |
171 | case ARPHRD_CSLIP6: | |
172 | return ZEBRA_LLT_CSLIP6; | |
173 | case ARPHRD_RSRVD: | |
174 | return ZEBRA_LLT_RSRVD; | |
175 | case ARPHRD_ADAPT: | |
176 | return ZEBRA_LLT_ADAPT; | |
177 | case ARPHRD_ROSE: | |
178 | return ZEBRA_LLT_ROSE; | |
179 | case ARPHRD_X25: | |
180 | return ZEBRA_LLT_X25; | |
181 | case ARPHRD_PPP: | |
182 | return ZEBRA_LLT_PPP; | |
183 | case ARPHRD_CISCO: | |
184 | return ZEBRA_LLT_CHDLC; | |
185 | case ARPHRD_LAPB: | |
186 | return ZEBRA_LLT_LAPB; | |
187 | case ARPHRD_RAWHDLC: | |
188 | return ZEBRA_LLT_RAWHDLC; | |
189 | case ARPHRD_TUNNEL: | |
190 | return ZEBRA_LLT_IPIP; | |
191 | case ARPHRD_TUNNEL6: | |
192 | return ZEBRA_LLT_IPIP6; | |
193 | case ARPHRD_FRAD: | |
194 | return ZEBRA_LLT_FRAD; | |
195 | case ARPHRD_SKIP: | |
196 | return ZEBRA_LLT_SKIP; | |
197 | case ARPHRD_LOOPBACK: | |
198 | return ZEBRA_LLT_LOOPBACK; | |
199 | case ARPHRD_LOCALTLK: | |
200 | return ZEBRA_LLT_LOCALTLK; | |
201 | case ARPHRD_FDDI: | |
202 | return ZEBRA_LLT_FDDI; | |
203 | case ARPHRD_SIT: | |
204 | return ZEBRA_LLT_SIT; | |
205 | case ARPHRD_IPDDP: | |
206 | return ZEBRA_LLT_IPDDP; | |
207 | case ARPHRD_IPGRE: | |
208 | return ZEBRA_LLT_IPGRE; | |
209 | case ARPHRD_PIMREG: | |
210 | return ZEBRA_LLT_PIMREG; | |
211 | case ARPHRD_HIPPI: | |
212 | return ZEBRA_LLT_HIPPI; | |
213 | case ARPHRD_ECONET: | |
214 | return ZEBRA_LLT_ECONET; | |
215 | case ARPHRD_IRDA: | |
216 | return ZEBRA_LLT_IRDA; | |
217 | case ARPHRD_FCPP: | |
218 | return ZEBRA_LLT_FCPP; | |
219 | case ARPHRD_FCAL: | |
220 | return ZEBRA_LLT_FCAL; | |
221 | case ARPHRD_FCPL: | |
222 | return ZEBRA_LLT_FCPL; | |
223 | case ARPHRD_FCFABRIC: | |
224 | return ZEBRA_LLT_FCFABRIC; | |
225 | case ARPHRD_IEEE802_TR: | |
226 | return ZEBRA_LLT_IEEE802_TR; | |
227 | case ARPHRD_IEEE80211: | |
228 | return ZEBRA_LLT_IEEE80211; | |
4268e09e | 229 | #ifdef ARPHRD_IEEE802154 |
d62a17ae | 230 | case ARPHRD_IEEE802154: |
231 | return ZEBRA_LLT_IEEE802154; | |
4268e09e | 232 | #endif |
1fdc9eae | 233 | #ifdef ARPHRD_IP6GRE |
d62a17ae | 234 | case ARPHRD_IP6GRE: |
235 | return ZEBRA_LLT_IP6GRE; | |
1fdc9eae | 236 | #endif |
237 | #ifdef ARPHRD_IEEE802154_PHY | |
d62a17ae | 238 | case ARPHRD_IEEE802154_PHY: |
239 | return ZEBRA_LLT_IEEE802154_PHY; | |
1fdc9eae | 240 | #endif |
241 | ||
d62a17ae | 242 | default: |
243 | return ZEBRA_LLT_UNKNOWN; | |
244 | } | |
1fdc9eae | 245 | } |
246 | ||
b9368db9 DD |
247 | static void netlink_determine_zebra_iftype(const char *kind, |
248 | zebra_iftype_t *zif_type) | |
6675513d | 249 | { |
d62a17ae | 250 | *zif_type = ZEBRA_IF_OTHER; |
251 | ||
252 | if (!kind) | |
253 | return; | |
254 | ||
255 | if (strcmp(kind, "vrf") == 0) | |
256 | *zif_type = ZEBRA_IF_VRF; | |
257 | else if (strcmp(kind, "bridge") == 0) | |
258 | *zif_type = ZEBRA_IF_BRIDGE; | |
259 | else if (strcmp(kind, "vlan") == 0) | |
260 | *zif_type = ZEBRA_IF_VLAN; | |
261 | else if (strcmp(kind, "vxlan") == 0) | |
262 | *zif_type = ZEBRA_IF_VXLAN; | |
1a98c087 MK |
263 | else if (strcmp(kind, "macvlan") == 0) |
264 | *zif_type = ZEBRA_IF_MACVLAN; | |
0e4864ea PG |
265 | else if (strcmp(kind, "veth") == 0) |
266 | *zif_type = ZEBRA_IF_VETH; | |
b9368db9 DD |
267 | else if (strcmp(kind, "bond") == 0) |
268 | *zif_type = ZEBRA_IF_BOND; | |
269 | else if (strcmp(kind, "bond_slave") == 0) | |
270 | *zif_type = ZEBRA_IF_BOND_SLAVE; | |
6675513d | 271 | } |
52d8f0d8 | 272 | |
d62a17ae | 273 | #define parse_rtattr_nested(tb, max, rta) \ |
274 | netlink_parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)) | |
1fdc9eae | 275 | |
d62a17ae | 276 | static void netlink_vrf_change(struct nlmsghdr *h, struct rtattr *tb, |
277 | const char *name) | |
1fdc9eae | 278 | { |
d62a17ae | 279 | struct ifinfomsg *ifi; |
280 | struct rtattr *linkinfo[IFLA_INFO_MAX + 1]; | |
281 | struct rtattr *attr[IFLA_VRF_MAX + 1]; | |
282 | struct vrf *vrf; | |
283 | struct zebra_vrf *zvrf; | |
d7c0a89a | 284 | uint32_t nl_table_id; |
d62a17ae | 285 | |
286 | ifi = NLMSG_DATA(h); | |
287 | ||
288 | memset(linkinfo, 0, sizeof linkinfo); | |
289 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); | |
290 | ||
291 | if (!linkinfo[IFLA_INFO_DATA]) { | |
292 | if (IS_ZEBRA_DEBUG_KERNEL) | |
293 | zlog_debug( | |
294 | "%s: IFLA_INFO_DATA missing from VRF message: %s", | |
295 | __func__, name); | |
296 | return; | |
297 | } | |
298 | ||
299 | memset(attr, 0, sizeof attr); | |
300 | parse_rtattr_nested(attr, IFLA_VRF_MAX, linkinfo[IFLA_INFO_DATA]); | |
301 | if (!attr[IFLA_VRF_TABLE]) { | |
302 | if (IS_ZEBRA_DEBUG_KERNEL) | |
303 | zlog_debug( | |
304 | "%s: IFLA_VRF_TABLE missing from VRF message: %s", | |
305 | __func__, name); | |
306 | return; | |
1fdc9eae | 307 | } |
308 | ||
d7c0a89a | 309 | nl_table_id = *(uint32_t *)RTA_DATA(attr[IFLA_VRF_TABLE]); |
d62a17ae | 310 | |
311 | if (h->nlmsg_type == RTM_NEWLINK) { | |
312 | if (IS_ZEBRA_DEBUG_KERNEL) | |
313 | zlog_debug("RTM_NEWLINK for VRF %s(%u) table %u", name, | |
314 | ifi->ifi_index, nl_table_id); | |
315 | ||
316 | /* | |
317 | * vrf_get is implied creation if it does not exist | |
318 | */ | |
319 | vrf = vrf_get((vrf_id_t)ifi->ifi_index, | |
320 | name); // It would create vrf | |
321 | if (!vrf) { | |
450971aa | 322 | flog_err(EC_LIB_INTERFACE, "VRF %s id %u not created", |
1c50c1c0 | 323 | name, ifi->ifi_index); |
d62a17ae | 324 | return; |
325 | } | |
326 | ||
d62a17ae | 327 | /* |
328 | * This is the only place that we get the actual kernel table_id | |
329 | * being used. We need it to set the table_id of the routes | |
330 | * we are passing to the kernel.... And to throw some totally | |
331 | * awesome parties. that too. | |
593406a1 DS |
332 | * |
333 | * At this point we *must* have a zvrf because the vrf_create | |
334 | * callback creates one. We *must* set the table id | |
335 | * before the vrf_enable because of( at the very least ) | |
336 | * static routes being delayed for installation until | |
337 | * during the vrf_enable callbacks. | |
d62a17ae | 338 | */ |
339 | zvrf = (struct zebra_vrf *)vrf->info; | |
340 | zvrf->table_id = nl_table_id; | |
593406a1 DS |
341 | |
342 | /* Enable the created VRF. */ | |
343 | if (!vrf_enable(vrf)) { | |
450971aa | 344 | flog_err(EC_LIB_INTERFACE, |
1c50c1c0 QY |
345 | "Failed to enable VRF %s id %u", name, |
346 | ifi->ifi_index); | |
593406a1 DS |
347 | return; |
348 | } | |
349 | ||
d62a17ae | 350 | } else // h->nlmsg_type == RTM_DELLINK |
351 | { | |
352 | if (IS_ZEBRA_DEBUG_KERNEL) | |
353 | zlog_debug("RTM_DELLINK for VRF %s(%u)", name, | |
354 | ifi->ifi_index); | |
355 | ||
356 | vrf = vrf_lookup_by_id((vrf_id_t)ifi->ifi_index); | |
357 | ||
358 | if (!vrf) { | |
e914ccbe | 359 | flog_warn(EC_ZEBRA_VRF_NOT_FOUND, "%s: vrf not found", |
9df414fe | 360 | __func__); |
d62a17ae | 361 | return; |
362 | } | |
363 | ||
364 | vrf_delete(vrf); | |
365 | } | |
1fdc9eae | 366 | } |
367 | ||
0268f30e | 368 | static int get_iflink_speed(struct interface *interface) |
535fe877 | 369 | { |
d62a17ae | 370 | struct ifreq ifdata; |
371 | struct ethtool_cmd ecmd; | |
372 | int sd; | |
373 | int rc; | |
0268f30e | 374 | const char *ifname = interface->name; |
d62a17ae | 375 | |
376 | /* initialize struct */ | |
377 | memset(&ifdata, 0, sizeof(ifdata)); | |
378 | ||
379 | /* set interface name */ | |
0af35d90 | 380 | strlcpy(ifdata.ifr_name, ifname, sizeof(ifdata.ifr_name)); |
d62a17ae | 381 | |
382 | /* initialize ethtool interface */ | |
383 | memset(&ecmd, 0, sizeof(ecmd)); | |
384 | ecmd.cmd = ETHTOOL_GSET; /* ETHTOOL_GLINK */ | |
ba85366a | 385 | ifdata.ifr_data = (caddr_t)&ecmd; |
d62a17ae | 386 | |
387 | /* use ioctl to get IP address of an interface */ | |
01b9e3fd DL |
388 | frr_elevate_privs(&zserv_privs) { |
389 | sd = vrf_socket(PF_INET, SOCK_DGRAM, IPPROTO_IP, | |
390 | interface->vrf_id, | |
391 | NULL); | |
392 | if (sd < 0) { | |
393 | if (IS_ZEBRA_DEBUG_KERNEL) | |
394 | zlog_debug("Failure to read interface %s speed: %d %s", | |
395 | ifname, errno, safe_strerror(errno)); | |
396 | return 0; | |
397 | } | |
d62a17ae | 398 | /* Get the current link state for the interface */ |
633fc9b1 DL |
399 | rc = vrf_ioctl(interface->vrf_id, sd, SIOCETHTOOL, |
400 | (char *)&ifdata); | |
01b9e3fd | 401 | } |
d62a17ae | 402 | if (rc < 0) { |
f767cee4 | 403 | if (errno != EOPNOTSUPP && IS_ZEBRA_DEBUG_KERNEL) |
bd7d0299 DS |
404 | zlog_debug( |
405 | "IOCTL failure to read interface %s speed: %d %s", | |
406 | ifname, errno, safe_strerror(errno)); | |
d62a17ae | 407 | ecmd.speed_hi = 0; |
408 | ecmd.speed = 0; | |
409 | } | |
410 | ||
411 | close(sd); | |
412 | ||
413 | return (ecmd.speed_hi << 16) | ecmd.speed; | |
535fe877 DS |
414 | } |
415 | ||
dc7b3cae DS |
416 | uint32_t kernel_get_speed(struct interface *ifp) |
417 | { | |
0268f30e | 418 | return get_iflink_speed(ifp); |
dc7b3cae DS |
419 | } |
420 | ||
d62a17ae | 421 | static int netlink_extract_bridge_info(struct rtattr *link_data, |
422 | struct zebra_l2info_bridge *bridge_info) | |
6675513d | 423 | { |
d62a17ae | 424 | struct rtattr *attr[IFLA_BR_MAX + 1]; |
425 | ||
426 | memset(bridge_info, 0, sizeof(*bridge_info)); | |
427 | memset(attr, 0, sizeof attr); | |
428 | parse_rtattr_nested(attr, IFLA_BR_MAX, link_data); | |
429 | if (attr[IFLA_BR_VLAN_FILTERING]) | |
430 | bridge_info->vlan_aware = | |
d7c0a89a | 431 | *(uint8_t *)RTA_DATA(attr[IFLA_BR_VLAN_FILTERING]); |
d62a17ae | 432 | return 0; |
6675513d | 433 | } |
434 | ||
d62a17ae | 435 | static int netlink_extract_vlan_info(struct rtattr *link_data, |
436 | struct zebra_l2info_vlan *vlan_info) | |
6675513d | 437 | { |
d62a17ae | 438 | struct rtattr *attr[IFLA_VLAN_MAX + 1]; |
439 | vlanid_t vid_in_msg; | |
440 | ||
441 | memset(vlan_info, 0, sizeof(*vlan_info)); | |
442 | memset(attr, 0, sizeof attr); | |
443 | parse_rtattr_nested(attr, IFLA_VLAN_MAX, link_data); | |
444 | if (!attr[IFLA_VLAN_ID]) { | |
445 | if (IS_ZEBRA_DEBUG_KERNEL) | |
446 | zlog_debug("IFLA_VLAN_ID missing from VLAN IF message"); | |
447 | return -1; | |
448 | } | |
449 | ||
450 | vid_in_msg = *(vlanid_t *)RTA_DATA(attr[IFLA_VLAN_ID]); | |
451 | vlan_info->vid = vid_in_msg; | |
452 | return 0; | |
6675513d | 453 | } |
454 | ||
d62a17ae | 455 | static int netlink_extract_vxlan_info(struct rtattr *link_data, |
456 | struct zebra_l2info_vxlan *vxl_info) | |
6675513d | 457 | { |
d62a17ae | 458 | struct rtattr *attr[IFLA_VXLAN_MAX + 1]; |
459 | vni_t vni_in_msg; | |
460 | struct in_addr vtep_ip_in_msg; | |
461 | ||
462 | memset(vxl_info, 0, sizeof(*vxl_info)); | |
463 | memset(attr, 0, sizeof attr); | |
464 | parse_rtattr_nested(attr, IFLA_VXLAN_MAX, link_data); | |
465 | if (!attr[IFLA_VXLAN_ID]) { | |
466 | if (IS_ZEBRA_DEBUG_KERNEL) | |
467 | zlog_debug( | |
468 | "IFLA_VXLAN_ID missing from VXLAN IF message"); | |
469 | return -1; | |
470 | } | |
471 | ||
472 | vni_in_msg = *(vni_t *)RTA_DATA(attr[IFLA_VXLAN_ID]); | |
473 | vxl_info->vni = vni_in_msg; | |
474 | if (!attr[IFLA_VXLAN_LOCAL]) { | |
475 | if (IS_ZEBRA_DEBUG_KERNEL) | |
476 | zlog_debug( | |
477 | "IFLA_VXLAN_LOCAL missing from VXLAN IF message"); | |
478 | } else { | |
479 | vtep_ip_in_msg = | |
480 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_LOCAL]); | |
481 | vxl_info->vtep_ip = vtep_ip_in_msg; | |
482 | } | |
483 | ||
d7fe235c AK |
484 | if (attr[IFLA_VXLAN_GROUP]) { |
485 | vxl_info->mcast_grp = | |
486 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_GROUP]); | |
487 | } | |
488 | ||
d62a17ae | 489 | return 0; |
6675513d | 490 | } |
491 | ||
492 | /* | |
493 | * Extract and save L2 params (of interest) for an interface. When a | |
494 | * bridge interface is added or updated, take further actions to map | |
495 | * its members. Likewise, for VxLAN interface. | |
496 | */ | |
d62a17ae | 497 | static void netlink_interface_update_l2info(struct interface *ifp, |
498 | struct rtattr *link_data, int add) | |
6675513d | 499 | { |
d62a17ae | 500 | if (!link_data) |
501 | return; | |
502 | ||
503 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
504 | struct zebra_l2info_bridge bridge_info; | |
505 | ||
506 | netlink_extract_bridge_info(link_data, &bridge_info); | |
507 | zebra_l2_bridge_add_update(ifp, &bridge_info, add); | |
508 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
509 | struct zebra_l2info_vlan vlan_info; | |
510 | ||
511 | netlink_extract_vlan_info(link_data, &vlan_info); | |
512 | zebra_l2_vlanif_update(ifp, &vlan_info); | |
513 | } else if (IS_ZEBRA_IF_VXLAN(ifp)) { | |
514 | struct zebra_l2info_vxlan vxlan_info; | |
515 | ||
516 | netlink_extract_vxlan_info(link_data, &vxlan_info); | |
517 | zebra_l2_vxlanif_add_update(ifp, &vxlan_info, add); | |
518 | } | |
6675513d | 519 | } |
520 | ||
d62a17ae | 521 | static int netlink_bridge_interface(struct nlmsghdr *h, int len, ns_id_t ns_id, |
522 | int startup) | |
6675513d | 523 | { |
d62a17ae | 524 | char *name = NULL; |
525 | struct ifinfomsg *ifi; | |
526 | struct rtattr *tb[IFLA_MAX + 1]; | |
527 | struct interface *ifp; | |
528 | struct rtattr *aftb[IFLA_BRIDGE_MAX + 1]; | |
529 | struct { | |
d7c0a89a QY |
530 | uint16_t flags; |
531 | uint16_t vid; | |
d62a17ae | 532 | } * vinfo; |
533 | vlanid_t access_vlan; | |
534 | ||
535 | /* Fetch name and ifindex */ | |
536 | ifi = NLMSG_DATA(h); | |
537 | memset(tb, 0, sizeof tb); | |
538 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
539 | ||
540 | if (tb[IFLA_IFNAME] == NULL) | |
541 | return -1; | |
542 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
543 | ||
544 | /* The interface should already be known, if not discard. */ | |
545 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(ns_id), ifi->ifi_index); | |
546 | if (!ifp) { | |
9df414fe QY |
547 | zlog_debug("Cannot find bridge IF %s(%u)", name, |
548 | ifi->ifi_index); | |
d62a17ae | 549 | return 0; |
550 | } | |
551 | if (!IS_ZEBRA_IF_VXLAN(ifp)) | |
552 | return 0; | |
553 | ||
554 | /* We are only interested in the access VLAN i.e., AF_SPEC */ | |
555 | if (!tb[IFLA_AF_SPEC]) | |
556 | return 0; | |
557 | ||
558 | /* There is a 1-to-1 mapping of VLAN to VxLAN - hence | |
559 | * only 1 access VLAN is accepted. | |
560 | */ | |
561 | memset(aftb, 0, sizeof aftb); | |
562 | parse_rtattr_nested(aftb, IFLA_BRIDGE_MAX, tb[IFLA_AF_SPEC]); | |
563 | if (!aftb[IFLA_BRIDGE_VLAN_INFO]) | |
564 | return 0; | |
565 | ||
566 | vinfo = RTA_DATA(aftb[IFLA_BRIDGE_VLAN_INFO]); | |
567 | if (!(vinfo->flags & BRIDGE_VLAN_INFO_PVID)) | |
568 | return 0; | |
569 | ||
570 | access_vlan = (vlanid_t)vinfo->vid; | |
571 | if (IS_ZEBRA_DEBUG_KERNEL) | |
572 | zlog_debug("Access VLAN %u for VxLAN IF %s(%u)", access_vlan, | |
573 | name, ifi->ifi_index); | |
574 | zebra_l2_vxlanif_update_access_vlan(ifp, access_vlan); | |
575 | return 0; | |
6675513d | 576 | } |
577 | ||
2414abd3 DS |
578 | /* |
579 | * Called from interface_lookup_netlink(). This function is only used | |
580 | * during bootstrap. | |
581 | */ | |
582 | static int netlink_interface(struct nlmsghdr *h, ns_id_t ns_id, int startup) | |
1fdc9eae | 583 | { |
d62a17ae | 584 | int len; |
585 | struct ifinfomsg *ifi; | |
586 | struct rtattr *tb[IFLA_MAX + 1]; | |
587 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
588 | struct interface *ifp; | |
589 | char *name = NULL; | |
590 | char *kind = NULL; | |
48884c6b | 591 | char *desc = NULL; |
d62a17ae | 592 | char *slave_kind = NULL; |
593 | struct zebra_ns *zns; | |
594 | vrf_id_t vrf_id = VRF_DEFAULT; | |
595 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
596 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
597 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
598 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 599 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
520ebf72 | 600 | struct zebra_if *zif; |
d62a17ae | 601 | |
602 | zns = zebra_ns_lookup(ns_id); | |
603 | ifi = NLMSG_DATA(h); | |
604 | ||
605 | if (h->nlmsg_type != RTM_NEWLINK) | |
606 | return 0; | |
607 | ||
608 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
9bdf8618 DS |
609 | if (len < 0) { |
610 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
611 | __PRETTY_FUNCTION__, | |
612 | h->nlmsg_len, | |
613 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 614 | return -1; |
9bdf8618 | 615 | } |
d62a17ae | 616 | |
617 | /* We are interested in some AF_BRIDGE notifications. */ | |
618 | if (ifi->ifi_family == AF_BRIDGE) | |
619 | return netlink_bridge_interface(h, len, ns_id, startup); | |
620 | ||
621 | /* Looking up interface name. */ | |
622 | memset(tb, 0, sizeof tb); | |
623 | memset(linkinfo, 0, sizeof linkinfo); | |
624 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 625 | |
d62a17ae | 626 | /* check for wireless messages to ignore */ |
627 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
628 | if (IS_ZEBRA_DEBUG_KERNEL) | |
629 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
630 | __func__); | |
631 | return 0; | |
632 | } | |
1fdc9eae | 633 | |
d62a17ae | 634 | if (tb[IFLA_IFNAME] == NULL) |
635 | return -1; | |
636 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 637 | |
48884c6b DS |
638 | if (tb[IFLA_IFALIAS]) |
639 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
640 | ||
d62a17ae | 641 | if (tb[IFLA_LINKINFO]) { |
642 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 643 | |
d62a17ae | 644 | if (linkinfo[IFLA_INFO_KIND]) |
645 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 646 | |
d62a17ae | 647 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
648 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 649 | |
b9368db9 DD |
650 | if ((slave_kind != NULL) && strcmp(slave_kind, "bond") == 0) |
651 | netlink_determine_zebra_iftype("bond_slave", &zif_type); | |
652 | else | |
653 | netlink_determine_zebra_iftype(kind, &zif_type); | |
d62a17ae | 654 | } |
655 | ||
656 | /* If VRF, create the VRF structure itself. */ | |
78dd30b2 | 657 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 658 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
659 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
660 | } | |
661 | ||
662 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
663 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
664 | && !vrf_is_backend_netns()) { | |
d62a17ae | 665 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 666 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 667 | } else if (slave_kind && (strcmp(slave_kind, "bridge") == 0)) { |
668 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
669 | bridge_ifindex = | |
670 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
671 | } else if (slave_kind && (strcmp(slave_kind, "bond") == 0)) { |
672 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
673 | bond_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 674 | } else |
675 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
676 | } | |
78dd30b2 PG |
677 | if (vrf_is_backend_netns()) |
678 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 679 | |
680 | /* If linking to another interface, note it. */ | |
681 | if (tb[IFLA_LINK]) | |
682 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
683 | ||
684 | /* Add interface. */ | |
8f90d89b | 685 | ifp = if_get_by_name(name, vrf_id); |
d62a17ae | 686 | set_ifindex(ifp, ifi->ifi_index, zns); |
687 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d62a17ae | 688 | ifp->mtu6 = ifp->mtu = *(uint32_t *)RTA_DATA(tb[IFLA_MTU]); |
689 | ifp->metric = 0; | |
0268f30e | 690 | ifp->speed = get_iflink_speed(ifp); |
d62a17ae | 691 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; |
692 | ||
48884c6b DS |
693 | if (desc) |
694 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
695 | ||
d62a17ae | 696 | /* Set zebra interface type */ |
697 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
698 | if (IS_ZEBRA_IF_VRF(ifp)) |
699 | SET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 700 | |
98efddf1 DS |
701 | /* |
702 | * Just set the @link/lower-device ifindex. During nldump interfaces are | |
520ebf72 AK |
703 | * not ordered in any fashion so we may end up getting upper devices |
704 | * before lower devices. We will setup the real linkage once the dump | |
98efddf1 DS |
705 | * is complete. |
706 | */ | |
520ebf72 AK |
707 | zif = (struct zebra_if *)ifp->info; |
708 | zif->link_ifindex = link_ifindex; | |
d62a17ae | 709 | |
710 | /* Hardware type and address. */ | |
711 | ifp->ll_type = netlink_to_zebra_link_type(ifi->ifi_type); | |
712 | netlink_interface_update_hw_addr(tb, ifp); | |
713 | ||
714 | if_add_update(ifp); | |
715 | ||
716 | /* Extract and save L2 interface information, take additional actions. | |
717 | */ | |
718 | netlink_interface_update_l2info(ifp, linkinfo[IFLA_INFO_DATA], 1); | |
719 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
720 | zebra_l2if_update_bridge_slave(ifp, bridge_ifindex); | |
b9368db9 DD |
721 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
722 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 723 | |
724 | return 0; | |
1fdc9eae | 725 | } |
726 | ||
289602d7 | 727 | /* Request for specific interface or address information from the kernel */ |
85a75f1e MS |
728 | static int netlink_request_intf_addr(struct nlsock *netlink_cmd, int family, |
729 | int type, uint32_t filter_mask) | |
289602d7 | 730 | { |
d62a17ae | 731 | struct { |
732 | struct nlmsghdr n; | |
733 | struct ifinfomsg ifm; | |
734 | char buf[256]; | |
735 | } req; | |
736 | ||
737 | /* Form the request, specifying filter (rtattr) if needed. */ | |
738 | memset(&req, 0, sizeof(req)); | |
739 | req.n.nlmsg_type = type; | |
718f9b0f | 740 | req.n.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; |
d62a17ae | 741 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
742 | req.ifm.ifi_family = family; | |
743 | ||
744 | /* Include filter, if specified. */ | |
745 | if (filter_mask) | |
746 | addattr32(&req.n, sizeof(req), IFLA_EXT_MASK, filter_mask); | |
747 | ||
85a75f1e | 748 | return netlink_request(netlink_cmd, &req.n); |
289602d7 | 749 | } |
750 | ||
1fdc9eae | 751 | /* Interface lookup by netlink socket. */ |
d62a17ae | 752 | int interface_lookup_netlink(struct zebra_ns *zns) |
1fdc9eae | 753 | { |
d62a17ae | 754 | int ret; |
85a75f1e MS |
755 | struct zebra_dplane_info dp_info; |
756 | struct nlsock *netlink_cmd = &zns->netlink_cmd; | |
757 | ||
758 | /* Capture key info from ns struct */ | |
759 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
d62a17ae | 760 | |
761 | /* Get interface information. */ | |
85a75f1e | 762 | ret = netlink_request_intf_addr(netlink_cmd, AF_PACKET, RTM_GETLINK, 0); |
d62a17ae | 763 | if (ret < 0) |
764 | return ret; | |
85a75f1e | 765 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 766 | 1); |
767 | if (ret < 0) | |
768 | return ret; | |
769 | ||
770 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 771 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 772 | RTEXT_FILTER_BRVLAN); |
773 | if (ret < 0) | |
774 | return ret; | |
85a75f1e | 775 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 776 | 0); |
777 | if (ret < 0) | |
778 | return ret; | |
779 | ||
780 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 781 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 782 | RTEXT_FILTER_BRVLAN); |
783 | if (ret < 0) | |
784 | return ret; | |
85a75f1e | 785 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 786 | 0); |
787 | if (ret < 0) | |
788 | return ret; | |
789 | ||
520ebf72 AK |
790 | /* fixup linkages */ |
791 | zebra_if_update_all_links(); | |
792 | ||
d62a17ae | 793 | /* Get IPv4 address of the interfaces. */ |
85a75f1e | 794 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET, RTM_GETADDR, 0); |
d62a17ae | 795 | if (ret < 0) |
796 | return ret; | |
85a75f1e | 797 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 798 | 0, 1); |
799 | if (ret < 0) | |
800 | return ret; | |
801 | ||
802 | /* Get IPv6 address of the interfaces. */ | |
85a75f1e | 803 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET6, RTM_GETADDR, 0); |
d62a17ae | 804 | if (ret < 0) |
805 | return ret; | |
85a75f1e | 806 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 807 | 0, 1); |
808 | if (ret < 0) | |
809 | return ret; | |
810 | ||
811 | return 0; | |
1fdc9eae | 812 | } |
813 | ||
e0ae31b8 DS |
814 | int kernel_interface_set_master(struct interface *master, |
815 | struct interface *slave) | |
816 | { | |
817 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
818 | ||
819 | struct { | |
820 | struct nlmsghdr n; | |
821 | struct ifinfomsg ifa; | |
822 | char buf[NL_PKT_BUF_SIZE]; | |
823 | } req; | |
824 | ||
825 | memset(&req, 0, sizeof req); | |
826 | ||
827 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
828 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
829 | req.n.nlmsg_type = RTM_SETLINK; | |
830 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
831 | ||
832 | req.ifa.ifi_index = slave->ifindex; | |
833 | ||
834 | addattr_l(&req.n, sizeof req, IFLA_MASTER, &master->ifindex, 4); | |
835 | addattr_l(&req.n, sizeof req, IFLA_LINK, &slave->ifindex, 4); | |
836 | ||
837 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
838 | 0); | |
839 | } | |
840 | ||
1fdc9eae | 841 | /* Interface address modification. */ |
64168803 | 842 | static int netlink_address_ctx(const struct zebra_dplane_ctx *ctx) |
1fdc9eae | 843 | { |
d62a17ae | 844 | int bytelen; |
64168803 MS |
845 | const struct prefix *p; |
846 | int cmd; | |
847 | const char *label; | |
1fdc9eae | 848 | |
d62a17ae | 849 | struct { |
850 | struct nlmsghdr n; | |
851 | struct ifaddrmsg ifa; | |
852 | char buf[NL_PKT_BUF_SIZE]; | |
853 | } req; | |
1fdc9eae | 854 | |
64168803 MS |
855 | p = dplane_ctx_get_intf_addr(ctx); |
856 | memset(&req, 0, sizeof(req) - NL_PKT_BUF_SIZE); | |
1fdc9eae | 857 | |
64168803 | 858 | bytelen = (p->family == AF_INET ? 4 : 16); |
1fdc9eae | 859 | |
d62a17ae | 860 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)); |
861 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
a55ba23f | 862 | |
64168803 MS |
863 | if (dplane_ctx_get_op(ctx) == DPLANE_OP_ADDR_INSTALL) |
864 | cmd = RTM_NEWADDR; | |
865 | else | |
866 | cmd = RTM_DELADDR; | |
867 | ||
868 | req.n.nlmsg_type = cmd; | |
869 | req.ifa.ifa_family = p->family; | |
1fdc9eae | 870 | |
64168803 | 871 | req.ifa.ifa_index = dplane_ctx_get_ifindex(ctx); |
1fdc9eae | 872 | |
64168803 | 873 | addattr_l(&req.n, sizeof(req), IFA_LOCAL, &p->u.prefix, bytelen); |
1fdc9eae | 874 | |
64168803 MS |
875 | if (p->family == AF_INET) { |
876 | if (dplane_ctx_intf_is_connected(ctx)) { | |
877 | p = dplane_ctx_get_intf_dest(ctx); | |
878 | addattr_l(&req.n, sizeof(req), IFA_ADDRESS, | |
879 | &p->u.prefix, bytelen); | |
880 | } else if (cmd == RTM_NEWADDR && | |
881 | dplane_ctx_intf_has_dest(ctx)) { | |
882 | p = dplane_ctx_get_intf_dest(ctx); | |
883 | addattr_l(&req.n, sizeof(req), IFA_BROADCAST, | |
d62a17ae | 884 | &p->u.prefix, bytelen); |
885 | } | |
886 | } | |
1fdc9eae | 887 | |
64168803 | 888 | /* p is now either address or destination/bcast addr */ |
e8d19a05 DL |
889 | req.ifa.ifa_prefixlen = p->prefixlen; |
890 | ||
64168803 | 891 | if (dplane_ctx_intf_is_secondary(ctx)) |
d62a17ae | 892 | SET_FLAG(req.ifa.ifa_flags, IFA_F_SECONDARY); |
1fdc9eae | 893 | |
64168803 MS |
894 | if (dplane_ctx_intf_has_label(ctx)) { |
895 | label = dplane_ctx_get_intf_label(ctx); | |
896 | addattr_l(&req.n, sizeof(req), IFA_LABEL, label, | |
897 | strlen(label) + 1); | |
898 | } | |
1fdc9eae | 899 | |
64168803 MS |
900 | return netlink_talk_info(netlink_talk_filter, &req.n, |
901 | dplane_ctx_get_ns(ctx), 0); | |
e86b71f1 PG |
902 | } |
903 | ||
64168803 | 904 | enum zebra_dplane_result kernel_address_update_ctx(struct zebra_dplane_ctx *ctx) |
e86b71f1 | 905 | { |
64168803 MS |
906 | return (netlink_address_ctx(ctx) == 0 ? |
907 | ZEBRA_DPLANE_REQUEST_SUCCESS : ZEBRA_DPLANE_REQUEST_FAILURE); | |
e86b71f1 PG |
908 | } |
909 | ||
2414abd3 | 910 | int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 911 | { |
d62a17ae | 912 | int len; |
913 | struct ifaddrmsg *ifa; | |
914 | struct rtattr *tb[IFA_MAX + 1]; | |
915 | struct interface *ifp; | |
916 | void *addr; | |
917 | void *broad; | |
d7c0a89a | 918 | uint8_t flags = 0; |
d62a17ae | 919 | char *label = NULL; |
920 | struct zebra_ns *zns; | |
cde1af84 | 921 | uint32_t metric = METRIC_MAX; |
9254efed | 922 | uint32_t kernel_flags = 0; |
d62a17ae | 923 | |
924 | zns = zebra_ns_lookup(ns_id); | |
925 | ifa = NLMSG_DATA(h); | |
926 | ||
8a1b681c | 927 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { |
9df414fe | 928 | flog_warn( |
e914ccbe | 929 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
930 | "Invalid address family: %u received from kernel interface addr change: %s", |
931 | ifa->ifa_family, nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 932 | return 0; |
8a1b681c | 933 | } |
d62a17ae | 934 | |
935 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
936 | return 0; | |
937 | ||
938 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
9bdf8618 DS |
939 | if (len < 0) { |
940 | zlog_err("%s: Message received from netlink is of a broken size: %d %zu", | |
941 | __PRETTY_FUNCTION__, | |
942 | h->nlmsg_len, | |
943 | (size_t)NLMSG_LENGTH(sizeof(struct ifaddrmsg))); | |
d62a17ae | 944 | return -1; |
9bdf8618 | 945 | } |
d62a17ae | 946 | |
947 | memset(tb, 0, sizeof tb); | |
948 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); | |
949 | ||
950 | ifp = if_lookup_by_index_per_ns(zns, ifa->ifa_index); | |
951 | if (ifp == NULL) { | |
af4c2728 | 952 | flog_err( |
450971aa | 953 | EC_LIB_INTERFACE, |
d62a17ae | 954 | "netlink_interface_addr can't find interface by index %d", |
955 | ifa->ifa_index); | |
956 | return -1; | |
957 | } | |
958 | ||
9254efed DS |
959 | /* Flags passed through */ |
960 | if (tb[IFA_FLAGS]) | |
961 | kernel_flags = *(int *)RTA_DATA(tb[IFA_FLAGS]); | |
962 | else | |
963 | kernel_flags = ifa->ifa_flags; | |
964 | ||
d62a17ae | 965 | if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */ |
966 | { | |
967 | char buf[BUFSIZ]; | |
968 | zlog_debug("netlink_interface_addr %s %s flags 0x%x:", | |
969 | nl_msg_type_to_str(h->nlmsg_type), ifp->name, | |
9254efed | 970 | kernel_flags); |
d62a17ae | 971 | if (tb[IFA_LOCAL]) |
972 | zlog_debug(" IFA_LOCAL %s/%d", | |
973 | inet_ntop(ifa->ifa_family, | |
974 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
975 | BUFSIZ), | |
976 | ifa->ifa_prefixlen); | |
977 | if (tb[IFA_ADDRESS]) | |
978 | zlog_debug(" IFA_ADDRESS %s/%d", | |
979 | inet_ntop(ifa->ifa_family, | |
980 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
981 | BUFSIZ), | |
982 | ifa->ifa_prefixlen); | |
983 | if (tb[IFA_BROADCAST]) | |
984 | zlog_debug(" IFA_BROADCAST %s/%d", | |
985 | inet_ntop(ifa->ifa_family, | |
986 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
987 | BUFSIZ), | |
988 | ifa->ifa_prefixlen); | |
989 | if (tb[IFA_LABEL] && strcmp(ifp->name, RTA_DATA(tb[IFA_LABEL]))) | |
990 | zlog_debug(" IFA_LABEL %s", | |
991 | (char *)RTA_DATA(tb[IFA_LABEL])); | |
992 | ||
993 | if (tb[IFA_CACHEINFO]) { | |
994 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
995 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
996 | ci->ifa_prefered, ci->ifa_valid); | |
997 | } | |
998 | } | |
999 | ||
1000 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
1001 | if (tb[IFA_LOCAL] == NULL) | |
1002 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
1003 | if (tb[IFA_ADDRESS] == NULL) | |
1004 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
1005 | ||
1006 | /* local interface address */ | |
1007 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
1008 | ||
1009 | /* is there a peer address? */ | |
1010 | if (tb[IFA_ADDRESS] | |
1011 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
1012 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
1013 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
1014 | SET_FLAG(flags, ZEBRA_IFA_PEER); | |
1015 | } else | |
1016 | /* seeking a broadcast address */ | |
1017 | broad = (tb[IFA_BROADCAST] ? RTA_DATA(tb[IFA_BROADCAST]) | |
1018 | : NULL); | |
1019 | ||
1020 | /* addr is primary key, SOL if we don't have one */ | |
1021 | if (addr == NULL) { | |
1022 | zlog_debug("%s: NULL address", __func__); | |
1023 | return -1; | |
1024 | } | |
1025 | ||
1026 | /* Flags. */ | |
9254efed | 1027 | if (kernel_flags & IFA_F_SECONDARY) |
d62a17ae | 1028 | SET_FLAG(flags, ZEBRA_IFA_SECONDARY); |
1029 | ||
1030 | /* Label */ | |
1031 | if (tb[IFA_LABEL]) | |
1032 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
1033 | ||
2e1cc436 | 1034 | if (label && strcmp(ifp->name, label) == 0) |
d62a17ae | 1035 | label = NULL; |
1036 | ||
cde1af84 AK |
1037 | if (tb[IFA_RT_PRIORITY]) |
1038 | metric = *(uint32_t *)RTA_DATA(tb[IFA_RT_PRIORITY]); | |
1039 | ||
d62a17ae | 1040 | /* Register interface address to the interface. */ |
1041 | if (ifa->ifa_family == AF_INET) { | |
930571d2 | 1042 | if (ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { |
e17d9b2d | 1043 | zlog_err( |
87b5d1b0 DS |
1044 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1045 | ifa->ifa_prefixlen, | |
1046 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1047 | return -1; |
930571d2 | 1048 | } |
d62a17ae | 1049 | if (h->nlmsg_type == RTM_NEWADDR) |
1050 | connected_add_ipv4(ifp, flags, (struct in_addr *)addr, | |
1051 | ifa->ifa_prefixlen, | |
cde1af84 AK |
1052 | (struct in_addr *)broad, label, |
1053 | metric); | |
d62a17ae | 1054 | else |
1055 | connected_delete_ipv4( | |
1056 | ifp, flags, (struct in_addr *)addr, | |
1057 | ifa->ifa_prefixlen, (struct in_addr *)broad); | |
1058 | } | |
1059 | if (ifa->ifa_family == AF_INET6) { | |
930571d2 | 1060 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { |
e17d9b2d | 1061 | zlog_err( |
87b5d1b0 DS |
1062 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1063 | ifa->ifa_prefixlen, | |
1064 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1065 | return -1; |
930571d2 | 1066 | } |
d62a17ae | 1067 | if (h->nlmsg_type == RTM_NEWADDR) { |
1068 | /* Only consider valid addresses; we'll not get a | |
1069 | * notification from | |
1070 | * the kernel till IPv6 DAD has completed, but at init | |
1071 | * time, Quagga | |
1072 | * does query for and will receive all addresses. | |
1073 | */ | |
9254efed | 1074 | if (!(kernel_flags |
d62a17ae | 1075 | & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) |
60466a63 QY |
1076 | connected_add_ipv6(ifp, flags, |
1077 | (struct in6_addr *)addr, | |
60c0687a | 1078 | (struct in6_addr *)broad, |
cde1af84 AK |
1079 | ifa->ifa_prefixlen, label, |
1080 | metric); | |
d62a17ae | 1081 | } else |
1082 | connected_delete_ipv6(ifp, (struct in6_addr *)addr, | |
60c0687a | 1083 | (struct in6_addr *)broad, |
608105a7 | 1084 | ifa->ifa_prefixlen); |
d62a17ae | 1085 | } |
1086 | ||
1087 | return 0; | |
1fdc9eae | 1088 | } |
1089 | ||
2414abd3 | 1090 | int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1091 | { |
d62a17ae | 1092 | int len; |
1093 | struct ifinfomsg *ifi; | |
1094 | struct rtattr *tb[IFLA_MAX + 1]; | |
1095 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1096 | struct interface *ifp; | |
1097 | char *name = NULL; | |
1098 | char *kind = NULL; | |
48884c6b | 1099 | char *desc = NULL; |
d62a17ae | 1100 | char *slave_kind = NULL; |
1101 | struct zebra_ns *zns; | |
1102 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1103 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
1104 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
1105 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 1106 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
d62a17ae | 1107 | ifindex_t link_ifindex = IFINDEX_INTERNAL; |
97c4e1d0 | 1108 | uint8_t old_hw_addr[INTERFACE_HWADDR_MAX]; |
d62a17ae | 1109 | |
1110 | ||
1111 | zns = zebra_ns_lookup(ns_id); | |
1112 | ifi = NLMSG_DATA(h); | |
1113 | ||
fe533c56 | 1114 | /* assume if not default zns, then new VRF */ |
d62a17ae | 1115 | if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) { |
1116 | /* If this is not link add/delete message so print warning. */ | |
87b5d1b0 DS |
1117 | zlog_debug("netlink_link_change: wrong kernel message %s", |
1118 | nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 1119 | return 0; |
1120 | } | |
1121 | ||
8a1b681c SW |
1122 | if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE |
1123 | || ifi->ifi_family == AF_INET6)) { | |
9df414fe | 1124 | flog_warn( |
e914ccbe | 1125 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
1126 | "Invalid address family: %u received from kernel link change: %s", |
1127 | ifi->ifi_family, nl_msg_type_to_str(h->nlmsg_type)); | |
8a1b681c SW |
1128 | return 0; |
1129 | } | |
1130 | ||
d62a17ae | 1131 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
9bdf8618 DS |
1132 | if (len < 0) { |
1133 | zlog_err("%s: Message received from netlink is of a broken size %d %zu", | |
1134 | __PRETTY_FUNCTION__, h->nlmsg_len, | |
1135 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 1136 | return -1; |
9bdf8618 | 1137 | } |
d62a17ae | 1138 | |
1139 | /* We are interested in some AF_BRIDGE notifications. */ | |
1140 | if (ifi->ifi_family == AF_BRIDGE) | |
1141 | return netlink_bridge_interface(h, len, ns_id, startup); | |
1142 | ||
1143 | /* Looking up interface name. */ | |
1144 | memset(tb, 0, sizeof tb); | |
1145 | memset(linkinfo, 0, sizeof linkinfo); | |
1146 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); | |
1fdc9eae | 1147 | |
d62a17ae | 1148 | /* check for wireless messages to ignore */ |
1149 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
1150 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1151 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
1152 | __func__); | |
1153 | return 0; | |
1154 | } | |
1fdc9eae | 1155 | |
d62a17ae | 1156 | if (tb[IFLA_IFNAME] == NULL) |
1157 | return -1; | |
1158 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 1159 | |
d62a17ae | 1160 | if (tb[IFLA_LINKINFO]) { |
1161 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 1162 | |
d62a17ae | 1163 | if (linkinfo[IFLA_INFO_KIND]) |
1164 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 1165 | |
d62a17ae | 1166 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
1167 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 1168 | |
d62a17ae | 1169 | netlink_determine_zebra_iftype(kind, &zif_type); |
1170 | } | |
6675513d | 1171 | |
d62a17ae | 1172 | /* If linking to another interface, note it. */ |
1173 | if (tb[IFLA_LINK]) | |
1174 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1fdc9eae | 1175 | |
48884c6b DS |
1176 | if (tb[IFLA_IFALIAS]) { |
1177 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
1178 | } | |
1179 | ||
d62a17ae | 1180 | /* If VRF, create or update the VRF structure itself. */ |
78dd30b2 | 1181 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
d62a17ae | 1182 | netlink_vrf_change(h, tb[IFLA_LINKINFO], name); |
1183 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
1184 | } | |
1fdc9eae | 1185 | |
d62a17ae | 1186 | /* See if interface is present. */ |
1187 | ifp = if_lookup_by_name_per_ns(zns, name); | |
1188 | ||
48884c6b | 1189 | if (ifp) { |
0a22ddfb | 1190 | XFREE(MTYPE_TMP, ifp->desc); |
48884c6b DS |
1191 | if (desc) |
1192 | ifp->desc = XSTRDUP(MTYPE_TMP, desc); | |
1193 | } | |
1194 | ||
d62a17ae | 1195 | if (h->nlmsg_type == RTM_NEWLINK) { |
1196 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
1197 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
1198 | && !vrf_is_backend_netns()) { | |
d62a17ae | 1199 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 1200 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 1201 | } else if (slave_kind |
1202 | && (strcmp(slave_kind, "bridge") == 0)) { | |
1203 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
1204 | bridge_ifindex = | |
1205 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
1206 | } else if (slave_kind |
1207 | && (strcmp(slave_kind, "bond") == 0)) { | |
1208 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
1209 | bond_ifindex = | |
1210 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 1211 | } else |
1212 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
1213 | } | |
fe533c56 PG |
1214 | if (vrf_is_backend_netns()) |
1215 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 1216 | if (ifp == NULL |
1217 | || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) { | |
1218 | /* Add interface notification from kernel */ | |
1219 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1220 | zlog_debug( | |
1221 | "RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d " | |
1222 | "sl_type %d master %u flags 0x%x", | |
1223 | name, ifi->ifi_index, vrf_id, zif_type, | |
1224 | zif_slave_type, bridge_ifindex, | |
1225 | ifi->ifi_flags); | |
1226 | ||
1227 | if (ifp == NULL) { | |
1228 | /* unknown interface */ | |
8f90d89b | 1229 | ifp = if_get_by_name(name, vrf_id); |
d62a17ae | 1230 | } else { |
1231 | /* pre-configured interface, learnt now */ | |
1232 | if (ifp->vrf_id != vrf_id) | |
1233 | if_update_to_new_vrf(ifp, vrf_id); | |
1234 | } | |
1235 | ||
1236 | /* Update interface information. */ | |
1237 | set_ifindex(ifp, ifi->ifi_index, zns); | |
1238 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d23b983b | 1239 | if (!tb[IFLA_MTU]) { |
9df414fe | 1240 | zlog_debug( |
d23b983b SW |
1241 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1242 | name, ifi->ifi_index); | |
1243 | return 0; | |
1244 | } | |
d62a17ae | 1245 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1246 | ifp->metric = 0; | |
1247 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
1248 | ||
1249 | /* Set interface type */ | |
1250 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
1251 | if (IS_ZEBRA_IF_VRF(ifp)) |
1252 | SET_FLAG(ifp->status, | |
1253 | ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 1254 | |
1255 | /* Update link. */ | |
680c278f | 1256 | zebra_if_update_link(ifp, link_ifindex, ns_id); |
d62a17ae | 1257 | |
1258 | netlink_interface_update_hw_addr(tb, ifp); | |
1259 | ||
1260 | /* Inform clients, install any configured addresses. */ | |
1261 | if_add_update(ifp); | |
1262 | ||
1263 | /* Extract and save L2 interface information, take | |
1264 | * additional actions. */ | |
1265 | netlink_interface_update_l2info( | |
1266 | ifp, linkinfo[IFLA_INFO_DATA], 1); | |
1267 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) | |
1268 | zebra_l2if_update_bridge_slave(ifp, | |
1269 | bridge_ifindex); | |
b9368db9 DD |
1270 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
1271 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 1272 | } else if (ifp->vrf_id != vrf_id) { |
1273 | /* VRF change for an interface. */ | |
1274 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1275 | zlog_debug( | |
1276 | "RTM_NEWLINK vrf-change for %s(%u) " | |
1277 | "vrf_id %u -> %u flags 0x%x", | |
1278 | name, ifp->ifindex, ifp->vrf_id, vrf_id, | |
1279 | ifi->ifi_flags); | |
1280 | ||
1281 | if_handle_vrf_change(ifp, vrf_id); | |
1282 | } else { | |
b9368db9 | 1283 | bool was_bridge_slave, was_bond_slave; |
d62a17ae | 1284 | |
1285 | /* Interface update. */ | |
1286 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1287 | zlog_debug( | |
1288 | "RTM_NEWLINK update for %s(%u) " | |
1289 | "sl_type %d master %u flags 0x%x", | |
1290 | name, ifp->ifindex, zif_slave_type, | |
1291 | bridge_ifindex, ifi->ifi_flags); | |
1292 | ||
1293 | set_ifindex(ifp, ifi->ifi_index, zns); | |
d23b983b | 1294 | if (!tb[IFLA_MTU]) { |
9df414fe | 1295 | zlog_debug( |
d23b983b SW |
1296 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1297 | name, ifi->ifi_index); | |
1298 | return 0; | |
1299 | } | |
d62a17ae | 1300 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1301 | ifp->metric = 0; | |
1302 | ||
1303 | /* Update interface type - NOTE: Only slave_type can | |
1304 | * change. */ | |
1305 | was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp); | |
b9368db9 | 1306 | was_bond_slave = IS_ZEBRA_IF_BOND_SLAVE(ifp); |
d62a17ae | 1307 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); |
1308 | ||
97c4e1d0 CS |
1309 | memcpy(old_hw_addr, ifp->hw_addr, INTERFACE_HWADDR_MAX); |
1310 | ||
d62a17ae | 1311 | netlink_interface_update_hw_addr(tb, ifp); |
1312 | ||
1313 | if (if_is_no_ptm_operative(ifp)) { | |
1314 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1315 | if (!if_is_no_ptm_operative(ifp)) { | |
1316 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1317 | zlog_debug( | |
1318 | "Intf %s(%u) has gone DOWN", | |
1319 | name, ifp->ifindex); | |
1320 | if_down(ifp); | |
1321 | } else if (if_is_operative(ifp)) { | |
1322 | /* Must notify client daemons of new | |
1323 | * interface status. */ | |
1324 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1325 | zlog_debug( | |
1326 | "Intf %s(%u) PTM up, notifying clients", | |
1327 | name, ifp->ifindex); | |
1328 | zebra_interface_up_update(ifp); | |
97c4e1d0 CS |
1329 | |
1330 | /* Update EVPN VNI when SVI MAC change | |
1331 | */ | |
1332 | if (IS_ZEBRA_IF_VLAN(ifp) && | |
1333 | memcmp(old_hw_addr, ifp->hw_addr, | |
1334 | INTERFACE_HWADDR_MAX)) { | |
1335 | struct interface *link_if; | |
1336 | ||
1337 | link_if = | |
1338 | if_lookup_by_index_per_ns( | |
1339 | zebra_ns_lookup(NS_DEFAULT), | |
1340 | link_ifindex); | |
1341 | if (link_if) | |
1342 | zebra_vxlan_svi_up(ifp, | |
1343 | link_if); | |
1344 | } | |
d62a17ae | 1345 | } |
1346 | } else { | |
1347 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1348 | if (if_is_operative(ifp)) { | |
1349 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1350 | zlog_debug( | |
1351 | "Intf %s(%u) has come UP", | |
1352 | name, ifp->ifindex); | |
1353 | if_up(ifp); | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | /* Extract and save L2 interface information, take | |
1358 | * additional actions. */ | |
1359 | netlink_interface_update_l2info( | |
1360 | ifp, linkinfo[IFLA_INFO_DATA], 0); | |
1361 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave) | |
1362 | zebra_l2if_update_bridge_slave(ifp, | |
1363 | bridge_ifindex); | |
b9368db9 DD |
1364 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp) || was_bond_slave) |
1365 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 1366 | } |
1367 | } else { | |
1368 | /* Delete interface notification from kernel */ | |
1369 | if (ifp == NULL) { | |
9df414fe QY |
1370 | if (IS_ZEBRA_DEBUG_KERNEL) |
1371 | zlog_debug( | |
1372 | "RTM_DELLINK for unknown interface %s(%u)", | |
1373 | name, ifi->ifi_index); | |
d62a17ae | 1374 | return 0; |
1375 | } | |
1376 | ||
1377 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1378 | zlog_debug("RTM_DELLINK for %s(%u)", name, | |
1379 | ifp->ifindex); | |
1380 | ||
1381 | UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
1382 | ||
1383 | /* Special handling for bridge or VxLAN interfaces. */ | |
1384 | if (IS_ZEBRA_IF_BRIDGE(ifp)) | |
1385 | zebra_l2_bridge_del(ifp); | |
1386 | else if (IS_ZEBRA_IF_VXLAN(ifp)) | |
1387 | zebra_l2_vxlanif_del(ifp); | |
1388 | ||
1389 | if (!IS_ZEBRA_IF_VRF(ifp)) | |
1390 | if_delete_update(ifp); | |
1fdc9eae | 1391 | } |
1392 | ||
d62a17ae | 1393 | return 0; |
1fdc9eae | 1394 | } |
718e3744 | 1395 | |
1396 | /* Interface information read by netlink. */ | |
d62a17ae | 1397 | void interface_list(struct zebra_ns *zns) |
718e3744 | 1398 | { |
d62a17ae | 1399 | interface_lookup_netlink(zns); |
718e3744 | 1400 | } |
ddfeb486 DL |
1401 | |
1402 | #endif /* GNU_LINUX */ |