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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" | |
d9f5b2f5 | 69 | #include "zebra/rt_netlink.h" |
1fdc9eae | 70 | #include "zebra/if_netlink.h" |
9df414fe | 71 | #include "zebra/zebra_errors.h" |
97c4e1d0 | 72 | #include "zebra/zebra_vxlan.h" |
1fdc9eae | 73 | |
0268f30e | 74 | extern struct zebra_privs_t zserv_privs; |
1fdc9eae | 75 | |
76 | /* Note: on netlink systems, there should be a 1-to-1 mapping between interface | |
77 | names and ifindex values. */ | |
d62a17ae | 78 | static void set_ifindex(struct interface *ifp, ifindex_t ifi_index, |
79 | struct zebra_ns *zns) | |
1fdc9eae | 80 | { |
d62a17ae | 81 | struct interface *oifp; |
82 | ||
83 | if (((oifp = if_lookup_by_index_per_ns(zns, ifi_index)) != NULL) | |
84 | && (oifp != ifp)) { | |
85 | if (ifi_index == IFINDEX_INTERNAL) | |
af4c2728 | 86 | flog_err( |
450971aa | 87 | EC_LIB_INTERFACE, |
4d43f68a | 88 | "Netlink is setting interface %s ifindex to reserved internal value %u", |
d62a17ae | 89 | ifp->name, ifi_index); |
90 | else { | |
91 | if (IS_ZEBRA_DEBUG_KERNEL) | |
92 | zlog_debug( | |
93 | "interface index %d was renamed from %s to %s", | |
94 | ifi_index, oifp->name, ifp->name); | |
95 | if (if_is_up(oifp)) | |
af4c2728 | 96 | flog_err( |
450971aa | 97 | EC_LIB_INTERFACE, |
4d43f68a | 98 | "interface rename detected on up interface: index %d was renamed from %s to %s, results are uncertain!", |
d62a17ae | 99 | ifi_index, oifp->name, ifp->name); |
100 | if_delete_update(oifp); | |
101 | } | |
102 | } | |
ff880b78 | 103 | if_set_index(ifp, ifi_index); |
1fdc9eae | 104 | } |
105 | ||
106 | /* Utility function to parse hardware link-layer address and update ifp */ | |
d62a17ae | 107 | static void netlink_interface_update_hw_addr(struct rtattr **tb, |
108 | struct interface *ifp) | |
1fdc9eae | 109 | { |
d62a17ae | 110 | int i; |
111 | ||
112 | if (tb[IFLA_ADDRESS]) { | |
113 | int hw_addr_len; | |
114 | ||
115 | hw_addr_len = RTA_PAYLOAD(tb[IFLA_ADDRESS]); | |
116 | ||
117 | if (hw_addr_len > INTERFACE_HWADDR_MAX) | |
9df414fe QY |
118 | zlog_debug("Hardware address is too large: %d", |
119 | hw_addr_len); | |
d62a17ae | 120 | else { |
121 | ifp->hw_addr_len = hw_addr_len; | |
122 | memcpy(ifp->hw_addr, RTA_DATA(tb[IFLA_ADDRESS]), | |
123 | hw_addr_len); | |
124 | ||
125 | for (i = 0; i < hw_addr_len; i++) | |
126 | if (ifp->hw_addr[i] != 0) | |
127 | break; | |
128 | ||
129 | if (i == hw_addr_len) | |
130 | ifp->hw_addr_len = 0; | |
131 | else | |
132 | ifp->hw_addr_len = hw_addr_len; | |
133 | } | |
134 | } | |
1fdc9eae | 135 | } |
136 | ||
d62a17ae | 137 | static enum zebra_link_type netlink_to_zebra_link_type(unsigned int hwt) |
1fdc9eae | 138 | { |
d62a17ae | 139 | switch (hwt) { |
140 | case ARPHRD_ETHER: | |
141 | return ZEBRA_LLT_ETHER; | |
142 | case ARPHRD_EETHER: | |
143 | return ZEBRA_LLT_EETHER; | |
144 | case ARPHRD_AX25: | |
145 | return ZEBRA_LLT_AX25; | |
146 | case ARPHRD_PRONET: | |
147 | return ZEBRA_LLT_PRONET; | |
148 | case ARPHRD_IEEE802: | |
149 | return ZEBRA_LLT_IEEE802; | |
150 | case ARPHRD_ARCNET: | |
151 | return ZEBRA_LLT_ARCNET; | |
152 | case ARPHRD_APPLETLK: | |
153 | return ZEBRA_LLT_APPLETLK; | |
154 | case ARPHRD_DLCI: | |
155 | return ZEBRA_LLT_DLCI; | |
156 | case ARPHRD_ATM: | |
157 | return ZEBRA_LLT_ATM; | |
158 | case ARPHRD_METRICOM: | |
159 | return ZEBRA_LLT_METRICOM; | |
160 | case ARPHRD_IEEE1394: | |
161 | return ZEBRA_LLT_IEEE1394; | |
162 | case ARPHRD_EUI64: | |
163 | return ZEBRA_LLT_EUI64; | |
164 | case ARPHRD_INFINIBAND: | |
165 | return ZEBRA_LLT_INFINIBAND; | |
166 | case ARPHRD_SLIP: | |
167 | return ZEBRA_LLT_SLIP; | |
168 | case ARPHRD_CSLIP: | |
169 | return ZEBRA_LLT_CSLIP; | |
170 | case ARPHRD_SLIP6: | |
171 | return ZEBRA_LLT_SLIP6; | |
172 | case ARPHRD_CSLIP6: | |
173 | return ZEBRA_LLT_CSLIP6; | |
174 | case ARPHRD_RSRVD: | |
175 | return ZEBRA_LLT_RSRVD; | |
176 | case ARPHRD_ADAPT: | |
177 | return ZEBRA_LLT_ADAPT; | |
178 | case ARPHRD_ROSE: | |
179 | return ZEBRA_LLT_ROSE; | |
180 | case ARPHRD_X25: | |
181 | return ZEBRA_LLT_X25; | |
182 | case ARPHRD_PPP: | |
183 | return ZEBRA_LLT_PPP; | |
184 | case ARPHRD_CISCO: | |
185 | return ZEBRA_LLT_CHDLC; | |
186 | case ARPHRD_LAPB: | |
187 | return ZEBRA_LLT_LAPB; | |
188 | case ARPHRD_RAWHDLC: | |
189 | return ZEBRA_LLT_RAWHDLC; | |
190 | case ARPHRD_TUNNEL: | |
191 | return ZEBRA_LLT_IPIP; | |
192 | case ARPHRD_TUNNEL6: | |
193 | return ZEBRA_LLT_IPIP6; | |
194 | case ARPHRD_FRAD: | |
195 | return ZEBRA_LLT_FRAD; | |
196 | case ARPHRD_SKIP: | |
197 | return ZEBRA_LLT_SKIP; | |
198 | case ARPHRD_LOOPBACK: | |
199 | return ZEBRA_LLT_LOOPBACK; | |
200 | case ARPHRD_LOCALTLK: | |
201 | return ZEBRA_LLT_LOCALTLK; | |
202 | case ARPHRD_FDDI: | |
203 | return ZEBRA_LLT_FDDI; | |
204 | case ARPHRD_SIT: | |
205 | return ZEBRA_LLT_SIT; | |
206 | case ARPHRD_IPDDP: | |
207 | return ZEBRA_LLT_IPDDP; | |
208 | case ARPHRD_IPGRE: | |
209 | return ZEBRA_LLT_IPGRE; | |
210 | case ARPHRD_PIMREG: | |
211 | return ZEBRA_LLT_PIMREG; | |
212 | case ARPHRD_HIPPI: | |
213 | return ZEBRA_LLT_HIPPI; | |
214 | case ARPHRD_ECONET: | |
215 | return ZEBRA_LLT_ECONET; | |
216 | case ARPHRD_IRDA: | |
217 | return ZEBRA_LLT_IRDA; | |
218 | case ARPHRD_FCPP: | |
219 | return ZEBRA_LLT_FCPP; | |
220 | case ARPHRD_FCAL: | |
221 | return ZEBRA_LLT_FCAL; | |
222 | case ARPHRD_FCPL: | |
223 | return ZEBRA_LLT_FCPL; | |
224 | case ARPHRD_FCFABRIC: | |
225 | return ZEBRA_LLT_FCFABRIC; | |
226 | case ARPHRD_IEEE802_TR: | |
227 | return ZEBRA_LLT_IEEE802_TR; | |
228 | case ARPHRD_IEEE80211: | |
229 | return ZEBRA_LLT_IEEE80211; | |
4268e09e | 230 | #ifdef ARPHRD_IEEE802154 |
d62a17ae | 231 | case ARPHRD_IEEE802154: |
232 | return ZEBRA_LLT_IEEE802154; | |
4268e09e | 233 | #endif |
1fdc9eae | 234 | #ifdef ARPHRD_IP6GRE |
d62a17ae | 235 | case ARPHRD_IP6GRE: |
236 | return ZEBRA_LLT_IP6GRE; | |
1fdc9eae | 237 | #endif |
238 | #ifdef ARPHRD_IEEE802154_PHY | |
d62a17ae | 239 | case ARPHRD_IEEE802154_PHY: |
240 | return ZEBRA_LLT_IEEE802154_PHY; | |
1fdc9eae | 241 | #endif |
242 | ||
d62a17ae | 243 | default: |
244 | return ZEBRA_LLT_UNKNOWN; | |
245 | } | |
1fdc9eae | 246 | } |
247 | ||
b9368db9 DD |
248 | static void netlink_determine_zebra_iftype(const char *kind, |
249 | zebra_iftype_t *zif_type) | |
6675513d | 250 | { |
d62a17ae | 251 | *zif_type = ZEBRA_IF_OTHER; |
252 | ||
253 | if (!kind) | |
254 | return; | |
255 | ||
256 | if (strcmp(kind, "vrf") == 0) | |
257 | *zif_type = ZEBRA_IF_VRF; | |
258 | else if (strcmp(kind, "bridge") == 0) | |
259 | *zif_type = ZEBRA_IF_BRIDGE; | |
260 | else if (strcmp(kind, "vlan") == 0) | |
261 | *zif_type = ZEBRA_IF_VLAN; | |
262 | else if (strcmp(kind, "vxlan") == 0) | |
263 | *zif_type = ZEBRA_IF_VXLAN; | |
1a98c087 MK |
264 | else if (strcmp(kind, "macvlan") == 0) |
265 | *zif_type = ZEBRA_IF_MACVLAN; | |
0e4864ea PG |
266 | else if (strcmp(kind, "veth") == 0) |
267 | *zif_type = ZEBRA_IF_VETH; | |
b9368db9 DD |
268 | else if (strcmp(kind, "bond") == 0) |
269 | *zif_type = ZEBRA_IF_BOND; | |
270 | else if (strcmp(kind, "bond_slave") == 0) | |
271 | *zif_type = ZEBRA_IF_BOND_SLAVE; | |
6675513d | 272 | } |
52d8f0d8 | 273 | |
d62a17ae | 274 | #define parse_rtattr_nested(tb, max, rta) \ |
275 | netlink_parse_rtattr((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta)) | |
1fdc9eae | 276 | |
d62a17ae | 277 | static void netlink_vrf_change(struct nlmsghdr *h, struct rtattr *tb, |
5e031198 | 278 | uint32_t ns_id, const char *name) |
1fdc9eae | 279 | { |
d62a17ae | 280 | struct ifinfomsg *ifi; |
281 | struct rtattr *linkinfo[IFLA_INFO_MAX + 1]; | |
282 | struct rtattr *attr[IFLA_VRF_MAX + 1]; | |
283 | struct vrf *vrf; | |
284 | struct zebra_vrf *zvrf; | |
d7c0a89a | 285 | uint32_t nl_table_id; |
d62a17ae | 286 | |
287 | ifi = NLMSG_DATA(h); | |
288 | ||
0d6f7fd6 | 289 | memset(linkinfo, 0, sizeof(linkinfo)); |
d62a17ae | 290 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); |
291 | ||
292 | if (!linkinfo[IFLA_INFO_DATA]) { | |
293 | if (IS_ZEBRA_DEBUG_KERNEL) | |
294 | zlog_debug( | |
295 | "%s: IFLA_INFO_DATA missing from VRF message: %s", | |
296 | __func__, name); | |
297 | return; | |
298 | } | |
299 | ||
0d6f7fd6 | 300 | memset(attr, 0, sizeof(attr)); |
d62a17ae | 301 | parse_rtattr_nested(attr, IFLA_VRF_MAX, linkinfo[IFLA_INFO_DATA]); |
302 | if (!attr[IFLA_VRF_TABLE]) { | |
303 | if (IS_ZEBRA_DEBUG_KERNEL) | |
304 | zlog_debug( | |
305 | "%s: IFLA_VRF_TABLE missing from VRF message: %s", | |
306 | __func__, name); | |
307 | return; | |
1fdc9eae | 308 | } |
309 | ||
d7c0a89a | 310 | nl_table_id = *(uint32_t *)RTA_DATA(attr[IFLA_VRF_TABLE]); |
d62a17ae | 311 | |
312 | if (h->nlmsg_type == RTM_NEWLINK) { | |
313 | if (IS_ZEBRA_DEBUG_KERNEL) | |
314 | zlog_debug("RTM_NEWLINK for VRF %s(%u) table %u", name, | |
315 | ifi->ifi_index, nl_table_id); | |
316 | ||
2e86d16d RW |
317 | if (!vrf_lookup_by_id((vrf_id_t)ifi->ifi_index)) { |
318 | vrf_id_t exist_id; | |
5e031198 | 319 | |
2e86d16d RW |
320 | exist_id = vrf_lookup_by_table(nl_table_id, ns_id); |
321 | if (exist_id != VRF_DEFAULT) { | |
322 | vrf = vrf_lookup_by_id(exist_id); | |
323 | ||
324 | flog_err( | |
325 | EC_ZEBRA_VRF_MISCONFIGURED, | |
326 | "VRF %s id %u table id overlaps existing vrf %s, misconfiguration exiting", | |
327 | name, ifi->ifi_index, vrf->name); | |
328 | exit(-1); | |
329 | } | |
5e031198 | 330 | } |
2e86d16d | 331 | |
d62a17ae | 332 | /* |
333 | * vrf_get is implied creation if it does not exist | |
334 | */ | |
335 | vrf = vrf_get((vrf_id_t)ifi->ifi_index, | |
336 | name); // It would create vrf | |
337 | if (!vrf) { | |
450971aa | 338 | flog_err(EC_LIB_INTERFACE, "VRF %s id %u not created", |
1c50c1c0 | 339 | name, ifi->ifi_index); |
d62a17ae | 340 | return; |
341 | } | |
342 | ||
d62a17ae | 343 | /* |
344 | * This is the only place that we get the actual kernel table_id | |
345 | * being used. We need it to set the table_id of the routes | |
346 | * we are passing to the kernel.... And to throw some totally | |
347 | * awesome parties. that too. | |
593406a1 DS |
348 | * |
349 | * At this point we *must* have a zvrf because the vrf_create | |
350 | * callback creates one. We *must* set the table id | |
351 | * before the vrf_enable because of( at the very least ) | |
352 | * static routes being delayed for installation until | |
353 | * during the vrf_enable callbacks. | |
d62a17ae | 354 | */ |
355 | zvrf = (struct zebra_vrf *)vrf->info; | |
356 | zvrf->table_id = nl_table_id; | |
593406a1 DS |
357 | |
358 | /* Enable the created VRF. */ | |
359 | if (!vrf_enable(vrf)) { | |
450971aa | 360 | flog_err(EC_LIB_INTERFACE, |
1c50c1c0 QY |
361 | "Failed to enable VRF %s id %u", name, |
362 | ifi->ifi_index); | |
593406a1 DS |
363 | return; |
364 | } | |
365 | ||
d62a17ae | 366 | } else // h->nlmsg_type == RTM_DELLINK |
367 | { | |
368 | if (IS_ZEBRA_DEBUG_KERNEL) | |
369 | zlog_debug("RTM_DELLINK for VRF %s(%u)", name, | |
370 | ifi->ifi_index); | |
371 | ||
372 | vrf = vrf_lookup_by_id((vrf_id_t)ifi->ifi_index); | |
373 | ||
374 | if (!vrf) { | |
e914ccbe | 375 | flog_warn(EC_ZEBRA_VRF_NOT_FOUND, "%s: vrf not found", |
9df414fe | 376 | __func__); |
d62a17ae | 377 | return; |
378 | } | |
379 | ||
380 | vrf_delete(vrf); | |
381 | } | |
1fdc9eae | 382 | } |
383 | ||
67188ca2 | 384 | static uint32_t get_iflink_speed(struct interface *interface, int *error) |
535fe877 | 385 | { |
d62a17ae | 386 | struct ifreq ifdata; |
387 | struct ethtool_cmd ecmd; | |
388 | int sd; | |
389 | int rc; | |
0268f30e | 390 | const char *ifname = interface->name; |
d62a17ae | 391 | |
594c2878 JF |
392 | if (error) |
393 | *error = 0; | |
d62a17ae | 394 | /* initialize struct */ |
395 | memset(&ifdata, 0, sizeof(ifdata)); | |
396 | ||
397 | /* set interface name */ | |
0af35d90 | 398 | strlcpy(ifdata.ifr_name, ifname, sizeof(ifdata.ifr_name)); |
d62a17ae | 399 | |
400 | /* initialize ethtool interface */ | |
401 | memset(&ecmd, 0, sizeof(ecmd)); | |
402 | ecmd.cmd = ETHTOOL_GSET; /* ETHTOOL_GLINK */ | |
ba85366a | 403 | ifdata.ifr_data = (caddr_t)&ecmd; |
d62a17ae | 404 | |
405 | /* use ioctl to get IP address of an interface */ | |
0cf6db21 | 406 | frr_with_privs(&zserv_privs) { |
01b9e3fd | 407 | sd = vrf_socket(PF_INET, SOCK_DGRAM, IPPROTO_IP, |
a36898e7 | 408 | interface->vrf_id, |
01b9e3fd DL |
409 | NULL); |
410 | if (sd < 0) { | |
411 | if (IS_ZEBRA_DEBUG_KERNEL) | |
412 | zlog_debug("Failure to read interface %s speed: %d %s", | |
413 | ifname, errno, safe_strerror(errno)); | |
594c2878 JF |
414 | /* no vrf socket creation may probably mean vrf issue */ |
415 | if (error) | |
416 | *error = -1; | |
01b9e3fd DL |
417 | return 0; |
418 | } | |
d62a17ae | 419 | /* Get the current link state for the interface */ |
a36898e7 | 420 | rc = vrf_ioctl(interface->vrf_id, sd, SIOCETHTOOL, |
633fc9b1 | 421 | (char *)&ifdata); |
01b9e3fd | 422 | } |
d62a17ae | 423 | if (rc < 0) { |
f767cee4 | 424 | if (errno != EOPNOTSUPP && IS_ZEBRA_DEBUG_KERNEL) |
bd7d0299 DS |
425 | zlog_debug( |
426 | "IOCTL failure to read interface %s speed: %d %s", | |
427 | ifname, errno, safe_strerror(errno)); | |
594c2878 JF |
428 | /* no device means interface unreachable */ |
429 | if (errno == ENODEV && error) | |
430 | *error = -1; | |
d62a17ae | 431 | ecmd.speed_hi = 0; |
432 | ecmd.speed = 0; | |
433 | } | |
434 | ||
435 | close(sd); | |
436 | ||
67188ca2 | 437 | return ((uint32_t)ecmd.speed_hi << 16) | ecmd.speed; |
535fe877 DS |
438 | } |
439 | ||
594c2878 | 440 | uint32_t kernel_get_speed(struct interface *ifp, int *error) |
dc7b3cae | 441 | { |
594c2878 | 442 | return get_iflink_speed(ifp, error); |
dc7b3cae DS |
443 | } |
444 | ||
d62a17ae | 445 | static int netlink_extract_bridge_info(struct rtattr *link_data, |
446 | struct zebra_l2info_bridge *bridge_info) | |
6675513d | 447 | { |
d62a17ae | 448 | struct rtattr *attr[IFLA_BR_MAX + 1]; |
449 | ||
450 | memset(bridge_info, 0, sizeof(*bridge_info)); | |
0d6f7fd6 | 451 | memset(attr, 0, sizeof(attr)); |
d62a17ae | 452 | parse_rtattr_nested(attr, IFLA_BR_MAX, link_data); |
453 | if (attr[IFLA_BR_VLAN_FILTERING]) | |
454 | bridge_info->vlan_aware = | |
d7c0a89a | 455 | *(uint8_t *)RTA_DATA(attr[IFLA_BR_VLAN_FILTERING]); |
d62a17ae | 456 | return 0; |
6675513d | 457 | } |
458 | ||
d62a17ae | 459 | static int netlink_extract_vlan_info(struct rtattr *link_data, |
460 | struct zebra_l2info_vlan *vlan_info) | |
6675513d | 461 | { |
d62a17ae | 462 | struct rtattr *attr[IFLA_VLAN_MAX + 1]; |
463 | vlanid_t vid_in_msg; | |
464 | ||
465 | memset(vlan_info, 0, sizeof(*vlan_info)); | |
0d6f7fd6 | 466 | memset(attr, 0, sizeof(attr)); |
d62a17ae | 467 | parse_rtattr_nested(attr, IFLA_VLAN_MAX, link_data); |
468 | if (!attr[IFLA_VLAN_ID]) { | |
469 | if (IS_ZEBRA_DEBUG_KERNEL) | |
470 | zlog_debug("IFLA_VLAN_ID missing from VLAN IF message"); | |
471 | return -1; | |
472 | } | |
473 | ||
474 | vid_in_msg = *(vlanid_t *)RTA_DATA(attr[IFLA_VLAN_ID]); | |
475 | vlan_info->vid = vid_in_msg; | |
476 | return 0; | |
6675513d | 477 | } |
478 | ||
d62a17ae | 479 | static int netlink_extract_vxlan_info(struct rtattr *link_data, |
480 | struct zebra_l2info_vxlan *vxl_info) | |
6675513d | 481 | { |
d62a17ae | 482 | struct rtattr *attr[IFLA_VXLAN_MAX + 1]; |
483 | vni_t vni_in_msg; | |
484 | struct in_addr vtep_ip_in_msg; | |
14ddb3d9 | 485 | ifindex_t ifindex_link; |
d62a17ae | 486 | |
487 | memset(vxl_info, 0, sizeof(*vxl_info)); | |
0d6f7fd6 | 488 | memset(attr, 0, sizeof(attr)); |
d62a17ae | 489 | parse_rtattr_nested(attr, IFLA_VXLAN_MAX, link_data); |
490 | if (!attr[IFLA_VXLAN_ID]) { | |
491 | if (IS_ZEBRA_DEBUG_KERNEL) | |
492 | zlog_debug( | |
493 | "IFLA_VXLAN_ID missing from VXLAN IF message"); | |
494 | return -1; | |
495 | } | |
496 | ||
497 | vni_in_msg = *(vni_t *)RTA_DATA(attr[IFLA_VXLAN_ID]); | |
498 | vxl_info->vni = vni_in_msg; | |
499 | if (!attr[IFLA_VXLAN_LOCAL]) { | |
500 | if (IS_ZEBRA_DEBUG_KERNEL) | |
501 | zlog_debug( | |
502 | "IFLA_VXLAN_LOCAL missing from VXLAN IF message"); | |
503 | } else { | |
504 | vtep_ip_in_msg = | |
505 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_LOCAL]); | |
506 | vxl_info->vtep_ip = vtep_ip_in_msg; | |
507 | } | |
508 | ||
d7fe235c AK |
509 | if (attr[IFLA_VXLAN_GROUP]) { |
510 | vxl_info->mcast_grp = | |
511 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_GROUP]); | |
512 | } | |
513 | ||
14ddb3d9 PG |
514 | if (!attr[IFLA_VXLAN_LINK]) { |
515 | if (IS_ZEBRA_DEBUG_KERNEL) | |
516 | zlog_debug("IFLA_VXLAN_LINK missing " | |
517 | "from VXLAN IF message"); | |
518 | } else { | |
519 | ifindex_link = | |
520 | *(ifindex_t *)RTA_DATA(attr[IFLA_VXLAN_LINK]); | |
521 | vxl_info->ifindex_link = ifindex_link; | |
522 | } | |
d62a17ae | 523 | return 0; |
6675513d | 524 | } |
525 | ||
526 | /* | |
527 | * Extract and save L2 params (of interest) for an interface. When a | |
528 | * bridge interface is added or updated, take further actions to map | |
529 | * its members. Likewise, for VxLAN interface. | |
530 | */ | |
d62a17ae | 531 | static void netlink_interface_update_l2info(struct interface *ifp, |
14ddb3d9 PG |
532 | struct rtattr *link_data, int add, |
533 | ns_id_t link_nsid) | |
6675513d | 534 | { |
d62a17ae | 535 | if (!link_data) |
536 | return; | |
537 | ||
538 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
539 | struct zebra_l2info_bridge bridge_info; | |
540 | ||
541 | netlink_extract_bridge_info(link_data, &bridge_info); | |
542 | zebra_l2_bridge_add_update(ifp, &bridge_info, add); | |
543 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
544 | struct zebra_l2info_vlan vlan_info; | |
545 | ||
546 | netlink_extract_vlan_info(link_data, &vlan_info); | |
547 | zebra_l2_vlanif_update(ifp, &vlan_info); | |
548 | } else if (IS_ZEBRA_IF_VXLAN(ifp)) { | |
549 | struct zebra_l2info_vxlan vxlan_info; | |
550 | ||
551 | netlink_extract_vxlan_info(link_data, &vxlan_info); | |
14ddb3d9 | 552 | vxlan_info.link_nsid = link_nsid; |
d62a17ae | 553 | zebra_l2_vxlanif_add_update(ifp, &vxlan_info, add); |
14ddb3d9 PG |
554 | if (link_nsid != NS_UNKNOWN && |
555 | vxlan_info.ifindex_link) | |
556 | zebra_if_update_link(ifp, vxlan_info.ifindex_link, | |
557 | link_nsid); | |
d62a17ae | 558 | } |
6675513d | 559 | } |
560 | ||
d62a17ae | 561 | static int netlink_bridge_interface(struct nlmsghdr *h, int len, ns_id_t ns_id, |
562 | int startup) | |
6675513d | 563 | { |
d62a17ae | 564 | char *name = NULL; |
565 | struct ifinfomsg *ifi; | |
566 | struct rtattr *tb[IFLA_MAX + 1]; | |
567 | struct interface *ifp; | |
568 | struct rtattr *aftb[IFLA_BRIDGE_MAX + 1]; | |
569 | struct { | |
d7c0a89a QY |
570 | uint16_t flags; |
571 | uint16_t vid; | |
d62a17ae | 572 | } * vinfo; |
573 | vlanid_t access_vlan; | |
574 | ||
575 | /* Fetch name and ifindex */ | |
576 | ifi = NLMSG_DATA(h); | |
0d6f7fd6 | 577 | memset(tb, 0, sizeof(tb)); |
d62a17ae | 578 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); |
579 | ||
580 | if (tb[IFLA_IFNAME] == NULL) | |
581 | return -1; | |
582 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
583 | ||
584 | /* The interface should already be known, if not discard. */ | |
585 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(ns_id), ifi->ifi_index); | |
586 | if (!ifp) { | |
9df414fe QY |
587 | zlog_debug("Cannot find bridge IF %s(%u)", name, |
588 | ifi->ifi_index); | |
d62a17ae | 589 | return 0; |
590 | } | |
591 | if (!IS_ZEBRA_IF_VXLAN(ifp)) | |
592 | return 0; | |
593 | ||
594 | /* We are only interested in the access VLAN i.e., AF_SPEC */ | |
595 | if (!tb[IFLA_AF_SPEC]) | |
596 | return 0; | |
597 | ||
598 | /* There is a 1-to-1 mapping of VLAN to VxLAN - hence | |
599 | * only 1 access VLAN is accepted. | |
600 | */ | |
0d6f7fd6 | 601 | memset(aftb, 0, sizeof(aftb)); |
d62a17ae | 602 | parse_rtattr_nested(aftb, IFLA_BRIDGE_MAX, tb[IFLA_AF_SPEC]); |
603 | if (!aftb[IFLA_BRIDGE_VLAN_INFO]) | |
604 | return 0; | |
605 | ||
606 | vinfo = RTA_DATA(aftb[IFLA_BRIDGE_VLAN_INFO]); | |
607 | if (!(vinfo->flags & BRIDGE_VLAN_INFO_PVID)) | |
608 | return 0; | |
609 | ||
610 | access_vlan = (vlanid_t)vinfo->vid; | |
611 | if (IS_ZEBRA_DEBUG_KERNEL) | |
612 | zlog_debug("Access VLAN %u for VxLAN IF %s(%u)", access_vlan, | |
613 | name, ifi->ifi_index); | |
614 | zebra_l2_vxlanif_update_access_vlan(ifp, access_vlan); | |
615 | return 0; | |
6675513d | 616 | } |
617 | ||
2414abd3 DS |
618 | /* |
619 | * Called from interface_lookup_netlink(). This function is only used | |
620 | * during bootstrap. | |
621 | */ | |
622 | static int netlink_interface(struct nlmsghdr *h, ns_id_t ns_id, int startup) | |
1fdc9eae | 623 | { |
d62a17ae | 624 | int len; |
625 | struct ifinfomsg *ifi; | |
626 | struct rtattr *tb[IFLA_MAX + 1]; | |
627 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
628 | struct interface *ifp; | |
629 | char *name = NULL; | |
630 | char *kind = NULL; | |
48884c6b | 631 | char *desc = NULL; |
d62a17ae | 632 | char *slave_kind = NULL; |
ea7ec261 | 633 | struct zebra_ns *zns = NULL; |
d62a17ae | 634 | vrf_id_t vrf_id = VRF_DEFAULT; |
635 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
636 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
637 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
638 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 639 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
520ebf72 | 640 | struct zebra_if *zif; |
14ddb3d9 | 641 | ns_id_t link_nsid = ns_id; |
d62a17ae | 642 | |
643 | zns = zebra_ns_lookup(ns_id); | |
644 | ifi = NLMSG_DATA(h); | |
645 | ||
646 | if (h->nlmsg_type != RTM_NEWLINK) | |
647 | return 0; | |
648 | ||
649 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
9bdf8618 | 650 | if (len < 0) { |
15569c58 DA |
651 | zlog_err( |
652 | "%s: Message received from netlink is of a broken size: %d %zu", | |
653 | __func__, h->nlmsg_len, | |
654 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 655 | return -1; |
9bdf8618 | 656 | } |
d62a17ae | 657 | |
658 | /* We are interested in some AF_BRIDGE notifications. */ | |
659 | if (ifi->ifi_family == AF_BRIDGE) | |
660 | return netlink_bridge_interface(h, len, ns_id, startup); | |
661 | ||
662 | /* Looking up interface name. */ | |
0d6f7fd6 DA |
663 | memset(tb, 0, sizeof(tb)); |
664 | memset(linkinfo, 0, sizeof(linkinfo)); | |
d62a17ae | 665 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); |
1fdc9eae | 666 | |
d62a17ae | 667 | /* check for wireless messages to ignore */ |
668 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
669 | if (IS_ZEBRA_DEBUG_KERNEL) | |
670 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
671 | __func__); | |
672 | return 0; | |
673 | } | |
1fdc9eae | 674 | |
d62a17ae | 675 | if (tb[IFLA_IFNAME] == NULL) |
676 | return -1; | |
677 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 678 | |
48884c6b DS |
679 | if (tb[IFLA_IFALIAS]) |
680 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
681 | ||
d62a17ae | 682 | if (tb[IFLA_LINKINFO]) { |
683 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 684 | |
d62a17ae | 685 | if (linkinfo[IFLA_INFO_KIND]) |
686 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 687 | |
d62a17ae | 688 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
689 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 690 | |
b9368db9 DD |
691 | if ((slave_kind != NULL) && strcmp(slave_kind, "bond") == 0) |
692 | netlink_determine_zebra_iftype("bond_slave", &zif_type); | |
693 | else | |
694 | netlink_determine_zebra_iftype(kind, &zif_type); | |
d62a17ae | 695 | } |
696 | ||
697 | /* If VRF, create the VRF structure itself. */ | |
78dd30b2 | 698 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
5e031198 | 699 | netlink_vrf_change(h, tb[IFLA_LINKINFO], ns_id, name); |
d62a17ae | 700 | vrf_id = (vrf_id_t)ifi->ifi_index; |
701 | } | |
702 | ||
703 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
704 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
705 | && !vrf_is_backend_netns()) { | |
d62a17ae | 706 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 707 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 708 | } else if (slave_kind && (strcmp(slave_kind, "bridge") == 0)) { |
709 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
710 | bridge_ifindex = | |
711 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
712 | } else if (slave_kind && (strcmp(slave_kind, "bond") == 0)) { |
713 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
714 | bond_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 715 | } else |
716 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
717 | } | |
78dd30b2 PG |
718 | if (vrf_is_backend_netns()) |
719 | vrf_id = (vrf_id_t)ns_id; | |
a36898e7 | 720 | |
d62a17ae | 721 | /* If linking to another interface, note it. */ |
722 | if (tb[IFLA_LINK]) | |
723 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
724 | ||
b6ebab34 | 725 | if (tb[IFLA_LINK_NETNSID]) { |
14ddb3d9 | 726 | link_nsid = *(ns_id_t *)RTA_DATA(tb[IFLA_LINK_NETNSID]); |
b6ebab34 PG |
727 | link_nsid = ns_id_get_absolute(ns_id, link_nsid); |
728 | } | |
14ddb3d9 | 729 | |
ea7ec261 DD |
730 | /* Add interface. |
731 | * We add by index first because in some cases such as the master | |
732 | * interface, we have the index before we have the name. Fixing | |
733 | * back references on the slave interfaces is painful if not done | |
734 | * this way, i.e. by creating by ifindex. | |
735 | */ | |
1f7a68a2 | 736 | ifp = if_get_by_ifindex(ifi->ifi_index, vrf_id, name); |
ea7ec261 | 737 | set_ifindex(ifp, ifi->ifi_index, zns); /* add it to ns struct */ |
d5c65bf1 | 738 | |
d62a17ae | 739 | ifp->flags = ifi->ifi_flags & 0x0000fffff; |
d62a17ae | 740 | ifp->mtu6 = ifp->mtu = *(uint32_t *)RTA_DATA(tb[IFLA_MTU]); |
741 | ifp->metric = 0; | |
594c2878 | 742 | ifp->speed = get_iflink_speed(ifp, NULL); |
d62a17ae | 743 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; |
744 | ||
745 | /* Set zebra interface type */ | |
746 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
747 | if (IS_ZEBRA_IF_VRF(ifp)) |
748 | SET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 749 | |
98efddf1 DS |
750 | /* |
751 | * Just set the @link/lower-device ifindex. During nldump interfaces are | |
520ebf72 AK |
752 | * not ordered in any fashion so we may end up getting upper devices |
753 | * before lower devices. We will setup the real linkage once the dump | |
98efddf1 DS |
754 | * is complete. |
755 | */ | |
520ebf72 AK |
756 | zif = (struct zebra_if *)ifp->info; |
757 | zif->link_ifindex = link_ifindex; | |
d62a17ae | 758 | |
ba5165ec DS |
759 | if (desc) { |
760 | XFREE(MTYPE_TMP, zif->desc); | |
761 | zif->desc = XSTRDUP(MTYPE_TMP, desc); | |
762 | } | |
763 | ||
d62a17ae | 764 | /* Hardware type and address. */ |
765 | ifp->ll_type = netlink_to_zebra_link_type(ifi->ifi_type); | |
766 | netlink_interface_update_hw_addr(tb, ifp); | |
767 | ||
768 | if_add_update(ifp); | |
769 | ||
770 | /* Extract and save L2 interface information, take additional actions. | |
771 | */ | |
14ddb3d9 PG |
772 | netlink_interface_update_l2info(ifp, linkinfo[IFLA_INFO_DATA], |
773 | 1, link_nsid); | |
d62a17ae | 774 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) |
b5b453a2 | 775 | zebra_l2if_update_bridge_slave(ifp, bridge_ifindex, ns_id); |
b9368db9 DD |
776 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
777 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 778 | |
779 | return 0; | |
1fdc9eae | 780 | } |
781 | ||
289602d7 | 782 | /* Request for specific interface or address information from the kernel */ |
85a75f1e MS |
783 | static int netlink_request_intf_addr(struct nlsock *netlink_cmd, int family, |
784 | int type, uint32_t filter_mask) | |
289602d7 | 785 | { |
d62a17ae | 786 | struct { |
787 | struct nlmsghdr n; | |
788 | struct ifinfomsg ifm; | |
789 | char buf[256]; | |
790 | } req; | |
791 | ||
792 | /* Form the request, specifying filter (rtattr) if needed. */ | |
793 | memset(&req, 0, sizeof(req)); | |
794 | req.n.nlmsg_type = type; | |
718f9b0f | 795 | req.n.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; |
d62a17ae | 796 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
797 | req.ifm.ifi_family = family; | |
798 | ||
799 | /* Include filter, if specified. */ | |
800 | if (filter_mask) | |
312a6bee | 801 | nl_attr_put32(&req.n, sizeof(req), IFLA_EXT_MASK, filter_mask); |
d62a17ae | 802 | |
fd3f8e52 | 803 | return netlink_request(netlink_cmd, &req); |
289602d7 | 804 | } |
805 | ||
1fdc9eae | 806 | /* Interface lookup by netlink socket. */ |
d62a17ae | 807 | int interface_lookup_netlink(struct zebra_ns *zns) |
1fdc9eae | 808 | { |
d62a17ae | 809 | int ret; |
85a75f1e MS |
810 | struct zebra_dplane_info dp_info; |
811 | struct nlsock *netlink_cmd = &zns->netlink_cmd; | |
812 | ||
813 | /* Capture key info from ns struct */ | |
814 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
d62a17ae | 815 | |
816 | /* Get interface information. */ | |
85a75f1e | 817 | ret = netlink_request_intf_addr(netlink_cmd, AF_PACKET, RTM_GETLINK, 0); |
d62a17ae | 818 | if (ret < 0) |
819 | return ret; | |
85a75f1e | 820 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 821 | 1); |
822 | if (ret < 0) | |
823 | return ret; | |
824 | ||
825 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 826 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 827 | RTEXT_FILTER_BRVLAN); |
828 | if (ret < 0) | |
829 | return ret; | |
85a75f1e | 830 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 831 | 0); |
832 | if (ret < 0) | |
833 | return ret; | |
834 | ||
835 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 836 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 837 | RTEXT_FILTER_BRVLAN); |
838 | if (ret < 0) | |
839 | return ret; | |
85a75f1e | 840 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
d62a17ae | 841 | 0); |
842 | if (ret < 0) | |
843 | return ret; | |
844 | ||
520ebf72 AK |
845 | /* fixup linkages */ |
846 | zebra_if_update_all_links(); | |
d2bec88a SW |
847 | return 0; |
848 | } | |
849 | ||
850 | /** | |
851 | * interface_addr_lookup_netlink() - Look up interface addresses | |
852 | * | |
853 | * @zns: Zebra netlink socket | |
854 | * Return: Result status | |
855 | */ | |
856 | static int interface_addr_lookup_netlink(struct zebra_ns *zns) | |
857 | { | |
858 | int ret; | |
859 | struct zebra_dplane_info dp_info; | |
860 | struct nlsock *netlink_cmd = &zns->netlink_cmd; | |
861 | ||
862 | /* Capture key info from ns struct */ | |
863 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
520ebf72 | 864 | |
d62a17ae | 865 | /* Get IPv4 address of the interfaces. */ |
85a75f1e | 866 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET, RTM_GETADDR, 0); |
d62a17ae | 867 | if (ret < 0) |
868 | return ret; | |
85a75f1e | 869 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 870 | 0, 1); |
871 | if (ret < 0) | |
872 | return ret; | |
873 | ||
874 | /* Get IPv6 address of the interfaces. */ | |
85a75f1e | 875 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET6, RTM_GETADDR, 0); |
d62a17ae | 876 | if (ret < 0) |
877 | return ret; | |
85a75f1e | 878 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
d62a17ae | 879 | 0, 1); |
880 | if (ret < 0) | |
881 | return ret; | |
882 | ||
883 | return 0; | |
1fdc9eae | 884 | } |
885 | ||
e0ae31b8 DS |
886 | int kernel_interface_set_master(struct interface *master, |
887 | struct interface *slave) | |
888 | { | |
889 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
890 | ||
891 | struct { | |
892 | struct nlmsghdr n; | |
893 | struct ifinfomsg ifa; | |
894 | char buf[NL_PKT_BUF_SIZE]; | |
895 | } req; | |
896 | ||
0d6f7fd6 | 897 | memset(&req, 0, sizeof(req)); |
e0ae31b8 DS |
898 | |
899 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
900 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
901 | req.n.nlmsg_type = RTM_SETLINK; | |
902 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
903 | ||
904 | req.ifa.ifi_index = slave->ifindex; | |
905 | ||
312a6bee JU |
906 | nl_attr_put(&req.n, sizeof(req), IFLA_MASTER, &master->ifindex, 4); |
907 | nl_attr_put(&req.n, sizeof(req), IFLA_LINK, &slave->ifindex, 4); | |
e0ae31b8 DS |
908 | |
909 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
910 | 0); | |
911 | } | |
912 | ||
1fdc9eae | 913 | /* Interface address modification. */ |
64168803 | 914 | static int netlink_address_ctx(const struct zebra_dplane_ctx *ctx) |
1fdc9eae | 915 | { |
d62a17ae | 916 | int bytelen; |
64168803 MS |
917 | const struct prefix *p; |
918 | int cmd; | |
919 | const char *label; | |
1fdc9eae | 920 | |
d62a17ae | 921 | struct { |
922 | struct nlmsghdr n; | |
923 | struct ifaddrmsg ifa; | |
924 | char buf[NL_PKT_BUF_SIZE]; | |
925 | } req; | |
1fdc9eae | 926 | |
64168803 MS |
927 | p = dplane_ctx_get_intf_addr(ctx); |
928 | memset(&req, 0, sizeof(req) - NL_PKT_BUF_SIZE); | |
1fdc9eae | 929 | |
64168803 | 930 | bytelen = (p->family == AF_INET ? 4 : 16); |
1fdc9eae | 931 | |
d62a17ae | 932 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)); |
933 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
a55ba23f | 934 | |
64168803 MS |
935 | if (dplane_ctx_get_op(ctx) == DPLANE_OP_ADDR_INSTALL) |
936 | cmd = RTM_NEWADDR; | |
937 | else | |
938 | cmd = RTM_DELADDR; | |
939 | ||
940 | req.n.nlmsg_type = cmd; | |
941 | req.ifa.ifa_family = p->family; | |
1fdc9eae | 942 | |
64168803 | 943 | req.ifa.ifa_index = dplane_ctx_get_ifindex(ctx); |
1fdc9eae | 944 | |
312a6bee | 945 | nl_attr_put(&req.n, sizeof(req), IFA_LOCAL, &p->u.prefix, bytelen); |
1fdc9eae | 946 | |
64168803 MS |
947 | if (p->family == AF_INET) { |
948 | if (dplane_ctx_intf_is_connected(ctx)) { | |
949 | p = dplane_ctx_get_intf_dest(ctx); | |
312a6bee JU |
950 | nl_attr_put(&req.n, sizeof(req), IFA_ADDRESS, |
951 | &p->u.prefix, bytelen); | |
0f3af738 JW |
952 | } else if (cmd == RTM_NEWADDR) { |
953 | struct in_addr broad = { | |
954 | .s_addr = ipv4_broadcast_addr(p->u.prefix4.s_addr, | |
955 | p->prefixlen) | |
956 | }; | |
312a6bee JU |
957 | nl_attr_put(&req.n, sizeof(req), IFA_BROADCAST, &broad, |
958 | bytelen); | |
d62a17ae | 959 | } |
960 | } | |
1fdc9eae | 961 | |
64168803 | 962 | /* p is now either address or destination/bcast addr */ |
e8d19a05 DL |
963 | req.ifa.ifa_prefixlen = p->prefixlen; |
964 | ||
64168803 | 965 | if (dplane_ctx_intf_is_secondary(ctx)) |
d62a17ae | 966 | SET_FLAG(req.ifa.ifa_flags, IFA_F_SECONDARY); |
1fdc9eae | 967 | |
64168803 MS |
968 | if (dplane_ctx_intf_has_label(ctx)) { |
969 | label = dplane_ctx_get_intf_label(ctx); | |
312a6bee JU |
970 | nl_attr_put(&req.n, sizeof(req), IFA_LABEL, label, |
971 | strlen(label) + 1); | |
64168803 | 972 | } |
1fdc9eae | 973 | |
64168803 MS |
974 | return netlink_talk_info(netlink_talk_filter, &req.n, |
975 | dplane_ctx_get_ns(ctx), 0); | |
e86b71f1 PG |
976 | } |
977 | ||
64168803 | 978 | enum zebra_dplane_result kernel_address_update_ctx(struct zebra_dplane_ctx *ctx) |
e86b71f1 | 979 | { |
64168803 MS |
980 | return (netlink_address_ctx(ctx) == 0 ? |
981 | ZEBRA_DPLANE_REQUEST_SUCCESS : ZEBRA_DPLANE_REQUEST_FAILURE); | |
e86b71f1 PG |
982 | } |
983 | ||
2414abd3 | 984 | int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 985 | { |
d62a17ae | 986 | int len; |
987 | struct ifaddrmsg *ifa; | |
988 | struct rtattr *tb[IFA_MAX + 1]; | |
989 | struct interface *ifp; | |
990 | void *addr; | |
991 | void *broad; | |
d7c0a89a | 992 | uint8_t flags = 0; |
d62a17ae | 993 | char *label = NULL; |
994 | struct zebra_ns *zns; | |
cde1af84 | 995 | uint32_t metric = METRIC_MAX; |
9254efed | 996 | uint32_t kernel_flags = 0; |
d62a17ae | 997 | |
998 | zns = zebra_ns_lookup(ns_id); | |
999 | ifa = NLMSG_DATA(h); | |
1000 | ||
8a1b681c | 1001 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { |
9df414fe | 1002 | flog_warn( |
e914ccbe | 1003 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
1004 | "Invalid address family: %u received from kernel interface addr change: %s", |
1005 | ifa->ifa_family, nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 1006 | return 0; |
8a1b681c | 1007 | } |
d62a17ae | 1008 | |
1009 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
1010 | return 0; | |
1011 | ||
1012 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
9bdf8618 | 1013 | if (len < 0) { |
15569c58 DA |
1014 | zlog_err( |
1015 | "%s: Message received from netlink is of a broken size: %d %zu", | |
1016 | __func__, h->nlmsg_len, | |
1017 | (size_t)NLMSG_LENGTH(sizeof(struct ifaddrmsg))); | |
d62a17ae | 1018 | return -1; |
9bdf8618 | 1019 | } |
d62a17ae | 1020 | |
0d6f7fd6 | 1021 | memset(tb, 0, sizeof(tb)); |
d62a17ae | 1022 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); |
1023 | ||
1024 | ifp = if_lookup_by_index_per_ns(zns, ifa->ifa_index); | |
1025 | if (ifp == NULL) { | |
af4c2728 | 1026 | flog_err( |
450971aa | 1027 | EC_LIB_INTERFACE, |
d62a17ae | 1028 | "netlink_interface_addr can't find interface by index %d", |
1029 | ifa->ifa_index); | |
1030 | return -1; | |
1031 | } | |
1032 | ||
9254efed DS |
1033 | /* Flags passed through */ |
1034 | if (tb[IFA_FLAGS]) | |
1035 | kernel_flags = *(int *)RTA_DATA(tb[IFA_FLAGS]); | |
1036 | else | |
1037 | kernel_flags = ifa->ifa_flags; | |
1038 | ||
d62a17ae | 1039 | if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */ |
1040 | { | |
1041 | char buf[BUFSIZ]; | |
1042 | zlog_debug("netlink_interface_addr %s %s flags 0x%x:", | |
1043 | nl_msg_type_to_str(h->nlmsg_type), ifp->name, | |
9254efed | 1044 | kernel_flags); |
d62a17ae | 1045 | if (tb[IFA_LOCAL]) |
1046 | zlog_debug(" IFA_LOCAL %s/%d", | |
1047 | inet_ntop(ifa->ifa_family, | |
1048 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
1049 | BUFSIZ), | |
1050 | ifa->ifa_prefixlen); | |
1051 | if (tb[IFA_ADDRESS]) | |
1052 | zlog_debug(" IFA_ADDRESS %s/%d", | |
1053 | inet_ntop(ifa->ifa_family, | |
1054 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
1055 | BUFSIZ), | |
1056 | ifa->ifa_prefixlen); | |
1057 | if (tb[IFA_BROADCAST]) | |
1058 | zlog_debug(" IFA_BROADCAST %s/%d", | |
1059 | inet_ntop(ifa->ifa_family, | |
1060 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
1061 | BUFSIZ), | |
1062 | ifa->ifa_prefixlen); | |
1063 | if (tb[IFA_LABEL] && strcmp(ifp->name, RTA_DATA(tb[IFA_LABEL]))) | |
1064 | zlog_debug(" IFA_LABEL %s", | |
1065 | (char *)RTA_DATA(tb[IFA_LABEL])); | |
1066 | ||
1067 | if (tb[IFA_CACHEINFO]) { | |
1068 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
1069 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
1070 | ci->ifa_prefered, ci->ifa_valid); | |
1071 | } | |
1072 | } | |
1073 | ||
1074 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
1075 | if (tb[IFA_LOCAL] == NULL) | |
1076 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
1077 | if (tb[IFA_ADDRESS] == NULL) | |
1078 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
1079 | ||
1080 | /* local interface address */ | |
1081 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
1082 | ||
1083 | /* is there a peer address? */ | |
1084 | if (tb[IFA_ADDRESS] | |
1085 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
1086 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
1087 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
1088 | SET_FLAG(flags, ZEBRA_IFA_PEER); | |
1089 | } else | |
1090 | /* seeking a broadcast address */ | |
1091 | broad = (tb[IFA_BROADCAST] ? RTA_DATA(tb[IFA_BROADCAST]) | |
1092 | : NULL); | |
1093 | ||
1094 | /* addr is primary key, SOL if we don't have one */ | |
1095 | if (addr == NULL) { | |
14a4d9d0 | 1096 | zlog_debug("%s: Local Interface Address is NULL for %s", |
1097 | __func__, ifp->name); | |
d62a17ae | 1098 | return -1; |
1099 | } | |
1100 | ||
1101 | /* Flags. */ | |
9254efed | 1102 | if (kernel_flags & IFA_F_SECONDARY) |
d62a17ae | 1103 | SET_FLAG(flags, ZEBRA_IFA_SECONDARY); |
1104 | ||
1105 | /* Label */ | |
1106 | if (tb[IFA_LABEL]) | |
1107 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
1108 | ||
2e1cc436 | 1109 | if (label && strcmp(ifp->name, label) == 0) |
d62a17ae | 1110 | label = NULL; |
1111 | ||
cde1af84 AK |
1112 | if (tb[IFA_RT_PRIORITY]) |
1113 | metric = *(uint32_t *)RTA_DATA(tb[IFA_RT_PRIORITY]); | |
1114 | ||
d62a17ae | 1115 | /* Register interface address to the interface. */ |
1116 | if (ifa->ifa_family == AF_INET) { | |
930571d2 | 1117 | if (ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { |
e17d9b2d | 1118 | zlog_err( |
87b5d1b0 DS |
1119 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1120 | ifa->ifa_prefixlen, | |
1121 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1122 | return -1; |
930571d2 | 1123 | } |
20e879f9 | 1124 | |
d62a17ae | 1125 | if (h->nlmsg_type == RTM_NEWADDR) |
1126 | connected_add_ipv4(ifp, flags, (struct in_addr *)addr, | |
1127 | ifa->ifa_prefixlen, | |
cde1af84 AK |
1128 | (struct in_addr *)broad, label, |
1129 | metric); | |
20e879f9 MS |
1130 | else if (CHECK_FLAG(flags, ZEBRA_IFA_PEER)) { |
1131 | /* Delete with a peer address */ | |
1132 | connected_delete_ipv4( | |
1133 | ifp, flags, (struct in_addr *)addr, | |
1134 | ifa->ifa_prefixlen, broad); | |
1135 | } else | |
d62a17ae | 1136 | connected_delete_ipv4( |
1137 | ifp, flags, (struct in_addr *)addr, | |
fd267f08 | 1138 | ifa->ifa_prefixlen, NULL); |
d62a17ae | 1139 | } |
20e879f9 | 1140 | |
d62a17ae | 1141 | if (ifa->ifa_family == AF_INET6) { |
930571d2 | 1142 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { |
e17d9b2d | 1143 | zlog_err( |
87b5d1b0 DS |
1144 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1145 | ifa->ifa_prefixlen, | |
1146 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1147 | return -1; |
930571d2 | 1148 | } |
d62a17ae | 1149 | if (h->nlmsg_type == RTM_NEWADDR) { |
1150 | /* Only consider valid addresses; we'll not get a | |
1151 | * notification from | |
1152 | * the kernel till IPv6 DAD has completed, but at init | |
1153 | * time, Quagga | |
1154 | * does query for and will receive all addresses. | |
1155 | */ | |
9254efed | 1156 | if (!(kernel_flags |
d62a17ae | 1157 | & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) |
60466a63 QY |
1158 | connected_add_ipv6(ifp, flags, |
1159 | (struct in6_addr *)addr, | |
60c0687a | 1160 | (struct in6_addr *)broad, |
cde1af84 AK |
1161 | ifa->ifa_prefixlen, label, |
1162 | metric); | |
d62a17ae | 1163 | } else |
1164 | connected_delete_ipv6(ifp, (struct in6_addr *)addr, | |
fd267f08 | 1165 | NULL, ifa->ifa_prefixlen); |
d62a17ae | 1166 | } |
1167 | ||
2a181147 SW |
1168 | |
1169 | /* | |
1170 | * Linux kernel does not send route delete on interface down/addr del | |
1171 | * so we have to re-process routes it owns (i.e. kernel routes) | |
1172 | */ | |
1173 | if (h->nlmsg_type != RTM_NEWADDR) | |
1174 | rib_update(RIB_UPDATE_KERNEL); | |
1175 | ||
d62a17ae | 1176 | return 0; |
1fdc9eae | 1177 | } |
1178 | ||
2414abd3 | 1179 | int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1180 | { |
d62a17ae | 1181 | int len; |
1182 | struct ifinfomsg *ifi; | |
1183 | struct rtattr *tb[IFLA_MAX + 1]; | |
1184 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1185 | struct interface *ifp; | |
1186 | char *name = NULL; | |
1187 | char *kind = NULL; | |
48884c6b | 1188 | char *desc = NULL; |
d62a17ae | 1189 | char *slave_kind = NULL; |
1190 | struct zebra_ns *zns; | |
1191 | vrf_id_t vrf_id = VRF_DEFAULT; | |
1192 | zebra_iftype_t zif_type = ZEBRA_IF_OTHER; | |
1193 | zebra_slave_iftype_t zif_slave_type = ZEBRA_IF_SLAVE_NONE; | |
1194 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 1195 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
d62a17ae | 1196 | ifindex_t link_ifindex = IFINDEX_INTERNAL; |
97c4e1d0 | 1197 | uint8_t old_hw_addr[INTERFACE_HWADDR_MAX]; |
ba5165ec | 1198 | struct zebra_if *zif; |
14ddb3d9 | 1199 | ns_id_t link_nsid = ns_id; |
d62a17ae | 1200 | |
1201 | zns = zebra_ns_lookup(ns_id); | |
1202 | ifi = NLMSG_DATA(h); | |
1203 | ||
fe533c56 | 1204 | /* assume if not default zns, then new VRF */ |
d62a17ae | 1205 | if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) { |
1206 | /* If this is not link add/delete message so print warning. */ | |
87b5d1b0 DS |
1207 | zlog_debug("netlink_link_change: wrong kernel message %s", |
1208 | nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 1209 | return 0; |
1210 | } | |
1211 | ||
8a1b681c SW |
1212 | if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE |
1213 | || ifi->ifi_family == AF_INET6)) { | |
9df414fe | 1214 | flog_warn( |
e914ccbe | 1215 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
1216 | "Invalid address family: %u received from kernel link change: %s", |
1217 | ifi->ifi_family, nl_msg_type_to_str(h->nlmsg_type)); | |
8a1b681c SW |
1218 | return 0; |
1219 | } | |
1220 | ||
d62a17ae | 1221 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
9bdf8618 | 1222 | if (len < 0) { |
15569c58 DA |
1223 | zlog_err( |
1224 | "%s: Message received from netlink is of a broken size %d %zu", | |
1225 | __func__, h->nlmsg_len, | |
1226 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 1227 | return -1; |
9bdf8618 | 1228 | } |
d62a17ae | 1229 | |
1230 | /* We are interested in some AF_BRIDGE notifications. */ | |
1231 | if (ifi->ifi_family == AF_BRIDGE) | |
1232 | return netlink_bridge_interface(h, len, ns_id, startup); | |
1233 | ||
1234 | /* Looking up interface name. */ | |
0d6f7fd6 DA |
1235 | memset(tb, 0, sizeof(tb)); |
1236 | memset(linkinfo, 0, sizeof(linkinfo)); | |
d62a17ae | 1237 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); |
1fdc9eae | 1238 | |
d62a17ae | 1239 | /* check for wireless messages to ignore */ |
1240 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
1241 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1242 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
1243 | __func__); | |
1244 | return 0; | |
1245 | } | |
1fdc9eae | 1246 | |
d62a17ae | 1247 | if (tb[IFLA_IFNAME] == NULL) |
1248 | return -1; | |
1249 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 1250 | |
d62a17ae | 1251 | if (tb[IFLA_LINKINFO]) { |
1252 | parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); | |
1fdc9eae | 1253 | |
d62a17ae | 1254 | if (linkinfo[IFLA_INFO_KIND]) |
1255 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 1256 | |
d62a17ae | 1257 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
1258 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 1259 | |
d62a17ae | 1260 | netlink_determine_zebra_iftype(kind, &zif_type); |
1261 | } | |
6675513d | 1262 | |
d62a17ae | 1263 | /* If linking to another interface, note it. */ |
1264 | if (tb[IFLA_LINK]) | |
1265 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1fdc9eae | 1266 | |
b6ebab34 | 1267 | if (tb[IFLA_LINK_NETNSID]) { |
14ddb3d9 | 1268 | link_nsid = *(ns_id_t *)RTA_DATA(tb[IFLA_LINK_NETNSID]); |
b6ebab34 PG |
1269 | link_nsid = ns_id_get_absolute(ns_id, link_nsid); |
1270 | } | |
48884c6b DS |
1271 | if (tb[IFLA_IFALIAS]) { |
1272 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
1273 | } | |
1274 | ||
d62a17ae | 1275 | /* If VRF, create or update the VRF structure itself. */ |
78dd30b2 | 1276 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
5e031198 | 1277 | netlink_vrf_change(h, tb[IFLA_LINKINFO], ns_id, name); |
d62a17ae | 1278 | vrf_id = (vrf_id_t)ifi->ifi_index; |
1279 | } | |
1fdc9eae | 1280 | |
d62a17ae | 1281 | /* See if interface is present. */ |
1282 | ifp = if_lookup_by_name_per_ns(zns, name); | |
1283 | ||
1284 | if (h->nlmsg_type == RTM_NEWLINK) { | |
1285 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
1286 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
1287 | && !vrf_is_backend_netns()) { | |
d62a17ae | 1288 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 1289 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 1290 | } else if (slave_kind |
1291 | && (strcmp(slave_kind, "bridge") == 0)) { | |
1292 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
1293 | bridge_ifindex = | |
1294 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
1295 | } else if (slave_kind |
1296 | && (strcmp(slave_kind, "bond") == 0)) { | |
1297 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
1298 | bond_ifindex = | |
1299 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 1300 | } else |
1301 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
1302 | } | |
fe533c56 PG |
1303 | if (vrf_is_backend_netns()) |
1304 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 1305 | if (ifp == NULL |
1306 | || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) { | |
1307 | /* Add interface notification from kernel */ | |
1308 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1309 | zlog_debug( | |
1310 | "RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d " | |
1311 | "sl_type %d master %u flags 0x%x", | |
1312 | name, ifi->ifi_index, vrf_id, zif_type, | |
1313 | zif_slave_type, bridge_ifindex, | |
1314 | ifi->ifi_flags); | |
1315 | ||
1316 | if (ifp == NULL) { | |
1317 | /* unknown interface */ | |
a36898e7 | 1318 | ifp = if_get_by_name(name, vrf_id); |
d62a17ae | 1319 | } else { |
1320 | /* pre-configured interface, learnt now */ | |
a36898e7 DS |
1321 | if (ifp->vrf_id != vrf_id) |
1322 | if_update_to_new_vrf(ifp, vrf_id); | |
d62a17ae | 1323 | } |
1324 | ||
1325 | /* Update interface information. */ | |
1326 | set_ifindex(ifp, ifi->ifi_index, zns); | |
1327 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d23b983b | 1328 | if (!tb[IFLA_MTU]) { |
9df414fe | 1329 | zlog_debug( |
d23b983b SW |
1330 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1331 | name, ifi->ifi_index); | |
1332 | return 0; | |
1333 | } | |
d62a17ae | 1334 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1335 | ifp->metric = 0; | |
1336 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
1337 | ||
1338 | /* Set interface type */ | |
1339 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
1340 | if (IS_ZEBRA_IF_VRF(ifp)) |
1341 | SET_FLAG(ifp->status, | |
1342 | ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 1343 | |
1344 | /* Update link. */ | |
680c278f | 1345 | zebra_if_update_link(ifp, link_ifindex, ns_id); |
d62a17ae | 1346 | |
1347 | netlink_interface_update_hw_addr(tb, ifp); | |
1348 | ||
1349 | /* Inform clients, install any configured addresses. */ | |
1350 | if_add_update(ifp); | |
1351 | ||
1352 | /* Extract and save L2 interface information, take | |
1353 | * additional actions. */ | |
1354 | netlink_interface_update_l2info( | |
14ddb3d9 PG |
1355 | ifp, linkinfo[IFLA_INFO_DATA], |
1356 | 1, link_nsid); | |
d62a17ae | 1357 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) |
1358 | zebra_l2if_update_bridge_slave(ifp, | |
b5b453a2 PG |
1359 | bridge_ifindex, |
1360 | ns_id); | |
b9368db9 DD |
1361 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
1362 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
a36898e7 | 1363 | } else if (ifp->vrf_id != vrf_id) { |
d62a17ae | 1364 | /* VRF change for an interface. */ |
1365 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1366 | zlog_debug( | |
1367 | "RTM_NEWLINK vrf-change for %s(%u) " | |
1368 | "vrf_id %u -> %u flags 0x%x", | |
a36898e7 DS |
1369 | name, ifp->ifindex, ifp->vrf_id, vrf_id, |
1370 | ifi->ifi_flags); | |
d62a17ae | 1371 | |
a36898e7 | 1372 | if_handle_vrf_change(ifp, vrf_id); |
d62a17ae | 1373 | } else { |
b9368db9 | 1374 | bool was_bridge_slave, was_bond_slave; |
d62a17ae | 1375 | |
1376 | /* Interface update. */ | |
1377 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1378 | zlog_debug( | |
1379 | "RTM_NEWLINK update for %s(%u) " | |
1380 | "sl_type %d master %u flags 0x%x", | |
1381 | name, ifp->ifindex, zif_slave_type, | |
1382 | bridge_ifindex, ifi->ifi_flags); | |
1383 | ||
1384 | set_ifindex(ifp, ifi->ifi_index, zns); | |
d23b983b | 1385 | if (!tb[IFLA_MTU]) { |
9df414fe | 1386 | zlog_debug( |
d23b983b SW |
1387 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
1388 | name, ifi->ifi_index); | |
1389 | return 0; | |
1390 | } | |
d62a17ae | 1391 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
1392 | ifp->metric = 0; | |
1393 | ||
1394 | /* Update interface type - NOTE: Only slave_type can | |
1395 | * change. */ | |
1396 | was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp); | |
b9368db9 | 1397 | was_bond_slave = IS_ZEBRA_IF_BOND_SLAVE(ifp); |
d62a17ae | 1398 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); |
1399 | ||
97c4e1d0 CS |
1400 | memcpy(old_hw_addr, ifp->hw_addr, INTERFACE_HWADDR_MAX); |
1401 | ||
d62a17ae | 1402 | netlink_interface_update_hw_addr(tb, ifp); |
1403 | ||
1404 | if (if_is_no_ptm_operative(ifp)) { | |
1405 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1406 | if (!if_is_no_ptm_operative(ifp)) { | |
1407 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1408 | zlog_debug( | |
1409 | "Intf %s(%u) has gone DOWN", | |
1410 | name, ifp->ifindex); | |
1411 | if_down(ifp); | |
2a181147 | 1412 | rib_update(RIB_UPDATE_KERNEL); |
d62a17ae | 1413 | } else if (if_is_operative(ifp)) { |
1414 | /* Must notify client daemons of new | |
1415 | * interface status. */ | |
1416 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1417 | zlog_debug( | |
1418 | "Intf %s(%u) PTM up, notifying clients", | |
1419 | name, ifp->ifindex); | |
1420 | zebra_interface_up_update(ifp); | |
97c4e1d0 CS |
1421 | |
1422 | /* Update EVPN VNI when SVI MAC change | |
1423 | */ | |
1424 | if (IS_ZEBRA_IF_VLAN(ifp) && | |
1425 | memcmp(old_hw_addr, ifp->hw_addr, | |
1426 | INTERFACE_HWADDR_MAX)) { | |
1427 | struct interface *link_if; | |
1428 | ||
1429 | link_if = | |
1430 | if_lookup_by_index_per_ns( | |
1431 | zebra_ns_lookup(NS_DEFAULT), | |
1432 | link_ifindex); | |
1433 | if (link_if) | |
1434 | zebra_vxlan_svi_up(ifp, | |
1435 | link_if); | |
1436 | } | |
d62a17ae | 1437 | } |
1438 | } else { | |
1439 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
1440 | if (if_is_operative(ifp)) { | |
1441 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1442 | zlog_debug( | |
1443 | "Intf %s(%u) has come UP", | |
1444 | name, ifp->ifindex); | |
1445 | if_up(ifp); | |
6f908ded QY |
1446 | } else { |
1447 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1448 | zlog_debug( | |
7913714e | 1449 | "Intf %s(%u) has gone DOWN", |
6f908ded QY |
1450 | name, ifp->ifindex); |
1451 | if_down(ifp); | |
2a181147 | 1452 | rib_update(RIB_UPDATE_KERNEL); |
d62a17ae | 1453 | } |
1454 | } | |
1455 | ||
1456 | /* Extract and save L2 interface information, take | |
1457 | * additional actions. */ | |
1458 | netlink_interface_update_l2info( | |
14ddb3d9 PG |
1459 | ifp, linkinfo[IFLA_INFO_DATA], |
1460 | 0, link_nsid); | |
d62a17ae | 1461 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave) |
1462 | zebra_l2if_update_bridge_slave(ifp, | |
b5b453a2 PG |
1463 | bridge_ifindex, |
1464 | ns_id); | |
b9368db9 DD |
1465 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp) || was_bond_slave) |
1466 | zebra_l2if_update_bond_slave(ifp, bond_ifindex); | |
d62a17ae | 1467 | } |
26f13577 DS |
1468 | |
1469 | zif = ifp->info; | |
1470 | if (zif) { | |
1471 | XFREE(MTYPE_TMP, zif->desc); | |
1472 | if (desc) | |
1473 | zif->desc = XSTRDUP(MTYPE_TMP, desc); | |
1474 | } | |
d62a17ae | 1475 | } else { |
1476 | /* Delete interface notification from kernel */ | |
1477 | if (ifp == NULL) { | |
9df414fe QY |
1478 | if (IS_ZEBRA_DEBUG_KERNEL) |
1479 | zlog_debug( | |
1480 | "RTM_DELLINK for unknown interface %s(%u)", | |
1481 | name, ifi->ifi_index); | |
d62a17ae | 1482 | return 0; |
1483 | } | |
1484 | ||
1485 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1486 | zlog_debug("RTM_DELLINK for %s(%u)", name, | |
1487 | ifp->ifindex); | |
1488 | ||
1489 | UNSET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
1490 | ||
1491 | /* Special handling for bridge or VxLAN interfaces. */ | |
1492 | if (IS_ZEBRA_IF_BRIDGE(ifp)) | |
1493 | zebra_l2_bridge_del(ifp); | |
1494 | else if (IS_ZEBRA_IF_VXLAN(ifp)) | |
1495 | zebra_l2_vxlanif_del(ifp); | |
1496 | ||
1497 | if (!IS_ZEBRA_IF_VRF(ifp)) | |
1498 | if_delete_update(ifp); | |
1fdc9eae | 1499 | } |
1500 | ||
d62a17ae | 1501 | return 0; |
1fdc9eae | 1502 | } |
718e3744 | 1503 | |
c3bd894e QY |
1504 | int netlink_protodown(struct interface *ifp, bool down) |
1505 | { | |
1506 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
1507 | ||
1508 | struct { | |
1509 | struct nlmsghdr n; | |
1510 | struct ifinfomsg ifa; | |
1511 | char buf[NL_PKT_BUF_SIZE]; | |
1512 | } req; | |
1513 | ||
2fff50ec | 1514 | memset(&req, 0, sizeof(req)); |
c3bd894e QY |
1515 | |
1516 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
1517 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
1518 | req.n.nlmsg_type = RTM_SETLINK; | |
1519 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
1520 | ||
1521 | req.ifa.ifi_index = ifp->ifindex; | |
1522 | ||
312a6bee JU |
1523 | nl_attr_put(&req.n, sizeof(req), IFLA_PROTO_DOWN, &down, sizeof(down)); |
1524 | nl_attr_put(&req.n, sizeof(req), IFLA_LINK, &ifp->ifindex, 4); | |
c3bd894e QY |
1525 | |
1526 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
1527 | 0); | |
1528 | } | |
1529 | ||
718e3744 | 1530 | /* Interface information read by netlink. */ |
d62a17ae | 1531 | void interface_list(struct zebra_ns *zns) |
718e3744 | 1532 | { |
d62a17ae | 1533 | interface_lookup_netlink(zns); |
d9f5b2f5 SW |
1534 | /* We add routes for interface address, |
1535 | * so we need to get the nexthop info | |
1536 | * from the kernel before we can do that | |
1537 | */ | |
81505946 | 1538 | netlink_nexthop_read(zns); |
cc4e0650 | 1539 | |
d2bec88a | 1540 | interface_addr_lookup_netlink(zns); |
718e3744 | 1541 | } |
ddfeb486 DL |
1542 | |
1543 | #endif /* GNU_LINUX */ |