]>
Commit | Line | Data |
---|---|---|
acddc0ed | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
718e3744 | 2 | /* |
3 | * Interface looking up by netlink. | |
4 | * Copyright (C) 1998 Kunihiro Ishiguro | |
718e3744 | 5 | */ |
6 | ||
7 | #include <zebra.h> | |
6675513d | 8 | |
ddfeb486 DL |
9 | #ifdef GNU_LINUX |
10 | ||
6675513d | 11 | /* The following definition is to workaround an issue in the Linux kernel |
12 | * header files with redefinition of 'struct in6_addr' in both | |
13 | * netinet/in.h and linux/in6.h. | |
14 | * Reference - https://sourceware.org/ml/libc-alpha/2013-01/msg00599.html | |
15 | */ | |
16 | #define _LINUX_IN6_H | |
077c07cc PG |
17 | #define _LINUX_IF_H |
18 | #define _LINUX_IP_H | |
6675513d | 19 | |
ba85366a | 20 | #include <netinet/if_ether.h> |
6675513d | 21 | #include <linux/if_bridge.h> |
ba777396 | 22 | #include <linux/if_link.h> |
077c07cc | 23 | #include <linux/if_tunnel.h> |
1fdc9eae | 24 | #include <net/if_arp.h> |
535fe877 DS |
25 | #include <linux/sockios.h> |
26 | #include <linux/ethtool.h> | |
1fdc9eae | 27 | |
28 | #include "linklist.h" | |
29 | #include "if.h" | |
30 | #include "log.h" | |
31 | #include "prefix.h" | |
32 | #include "connected.h" | |
33 | #include "table.h" | |
34 | #include "memory.h" | |
1fdc9eae | 35 | #include "rib.h" |
24a58196 | 36 | #include "frrevent.h" |
1fdc9eae | 37 | #include "privs.h" |
38 | #include "nexthop.h" | |
39 | #include "vrf.h" | |
7922fc65 | 40 | #include "vrf_int.h" |
1fdc9eae | 41 | #include "mpls.h" |
174482ef | 42 | #include "lib_errors.h" |
718e3744 | 43 | |
5e6a74d8 | 44 | #include "vty.h" |
7dbeea9d | 45 | #include "zebra/zserv.h" |
1fdc9eae | 46 | #include "zebra/zebra_ns.h" |
47 | #include "zebra/zebra_vrf.h" | |
48 | #include "zebra/rt.h" | |
49 | #include "zebra/redistribute.h" | |
50 | #include "zebra/interface.h" | |
51 | #include "zebra/debug.h" | |
52 | #include "zebra/rtadv.h" | |
53 | #include "zebra/zebra_ptm.h" | |
54 | #include "zebra/zebra_mpls.h" | |
55 | #include "zebra/kernel_netlink.h" | |
d9f5b2f5 | 56 | #include "zebra/rt_netlink.h" |
1fdc9eae | 57 | #include "zebra/if_netlink.h" |
9df414fe | 58 | #include "zebra/zebra_errors.h" |
97c4e1d0 | 59 | #include "zebra/zebra_vxlan.h" |
42b56639 | 60 | #include "zebra/zebra_evpn_mh.h" |
e3d3fa06 | 61 | #include "zebra/zebra_l2.h" |
ebb61fca | 62 | #include "zebra/netconf_netlink.h" |
d42e6142 | 63 | #include "zebra/zebra_trace.h" |
1fdc9eae | 64 | |
0268f30e | 65 | extern struct zebra_privs_t zserv_privs; |
5d414138 | 66 | uint8_t frr_protodown_r_bit = FRR_PROTODOWN_REASON_DEFAULT_BIT; |
1fdc9eae | 67 | |
68 | /* Note: on netlink systems, there should be a 1-to-1 mapping between interface | |
69 | names and ifindex values. */ | |
d62a17ae | 70 | static void set_ifindex(struct interface *ifp, ifindex_t ifi_index, |
71 | struct zebra_ns *zns) | |
1fdc9eae | 72 | { |
d62a17ae | 73 | struct interface *oifp; |
74 | ||
75 | if (((oifp = if_lookup_by_index_per_ns(zns, ifi_index)) != NULL) | |
76 | && (oifp != ifp)) { | |
77 | if (ifi_index == IFINDEX_INTERNAL) | |
af4c2728 | 78 | flog_err( |
450971aa | 79 | EC_LIB_INTERFACE, |
4d43f68a | 80 | "Netlink is setting interface %s ifindex to reserved internal value %u", |
d62a17ae | 81 | ifp->name, ifi_index); |
82 | else { | |
83 | if (IS_ZEBRA_DEBUG_KERNEL) | |
84 | zlog_debug( | |
85 | "interface index %d was renamed from %s to %s", | |
86 | ifi_index, oifp->name, ifp->name); | |
87 | if (if_is_up(oifp)) | |
af4c2728 | 88 | flog_err( |
450971aa | 89 | EC_LIB_INTERFACE, |
4d43f68a | 90 | "interface rename detected on up interface: index %d was renamed from %s to %s, results are uncertain!", |
d62a17ae | 91 | ifi_index, oifp->name, ifp->name); |
d0438da6 | 92 | if_delete_update(&oifp); |
d62a17ae | 93 | } |
94 | } | |
ff880b78 | 95 | if_set_index(ifp, ifi_index); |
1fdc9eae | 96 | } |
97 | ||
98 | /* Utility function to parse hardware link-layer address and update ifp */ | |
d62a17ae | 99 | static void netlink_interface_update_hw_addr(struct rtattr **tb, |
100 | struct interface *ifp) | |
1fdc9eae | 101 | { |
d62a17ae | 102 | int i; |
103 | ||
104 | if (tb[IFLA_ADDRESS]) { | |
105 | int hw_addr_len; | |
106 | ||
107 | hw_addr_len = RTA_PAYLOAD(tb[IFLA_ADDRESS]); | |
108 | ||
109 | if (hw_addr_len > INTERFACE_HWADDR_MAX) | |
9df414fe QY |
110 | zlog_debug("Hardware address is too large: %d", |
111 | hw_addr_len); | |
d62a17ae | 112 | else { |
113 | ifp->hw_addr_len = hw_addr_len; | |
114 | memcpy(ifp->hw_addr, RTA_DATA(tb[IFLA_ADDRESS]), | |
115 | hw_addr_len); | |
116 | ||
117 | for (i = 0; i < hw_addr_len; i++) | |
118 | if (ifp->hw_addr[i] != 0) | |
119 | break; | |
120 | ||
121 | if (i == hw_addr_len) | |
122 | ifp->hw_addr_len = 0; | |
123 | else | |
124 | ifp->hw_addr_len = hw_addr_len; | |
125 | } | |
126 | } | |
1fdc9eae | 127 | } |
128 | ||
d62a17ae | 129 | static enum zebra_link_type netlink_to_zebra_link_type(unsigned int hwt) |
1fdc9eae | 130 | { |
d62a17ae | 131 | switch (hwt) { |
132 | case ARPHRD_ETHER: | |
133 | return ZEBRA_LLT_ETHER; | |
134 | case ARPHRD_EETHER: | |
135 | return ZEBRA_LLT_EETHER; | |
136 | case ARPHRD_AX25: | |
137 | return ZEBRA_LLT_AX25; | |
138 | case ARPHRD_PRONET: | |
139 | return ZEBRA_LLT_PRONET; | |
140 | case ARPHRD_IEEE802: | |
141 | return ZEBRA_LLT_IEEE802; | |
142 | case ARPHRD_ARCNET: | |
143 | return ZEBRA_LLT_ARCNET; | |
144 | case ARPHRD_APPLETLK: | |
145 | return ZEBRA_LLT_APPLETLK; | |
146 | case ARPHRD_DLCI: | |
147 | return ZEBRA_LLT_DLCI; | |
148 | case ARPHRD_ATM: | |
149 | return ZEBRA_LLT_ATM; | |
150 | case ARPHRD_METRICOM: | |
151 | return ZEBRA_LLT_METRICOM; | |
152 | case ARPHRD_IEEE1394: | |
153 | return ZEBRA_LLT_IEEE1394; | |
154 | case ARPHRD_EUI64: | |
155 | return ZEBRA_LLT_EUI64; | |
156 | case ARPHRD_INFINIBAND: | |
157 | return ZEBRA_LLT_INFINIBAND; | |
158 | case ARPHRD_SLIP: | |
159 | return ZEBRA_LLT_SLIP; | |
160 | case ARPHRD_CSLIP: | |
161 | return ZEBRA_LLT_CSLIP; | |
162 | case ARPHRD_SLIP6: | |
163 | return ZEBRA_LLT_SLIP6; | |
164 | case ARPHRD_CSLIP6: | |
165 | return ZEBRA_LLT_CSLIP6; | |
166 | case ARPHRD_RSRVD: | |
167 | return ZEBRA_LLT_RSRVD; | |
168 | case ARPHRD_ADAPT: | |
169 | return ZEBRA_LLT_ADAPT; | |
170 | case ARPHRD_ROSE: | |
171 | return ZEBRA_LLT_ROSE; | |
172 | case ARPHRD_X25: | |
173 | return ZEBRA_LLT_X25; | |
174 | case ARPHRD_PPP: | |
175 | return ZEBRA_LLT_PPP; | |
176 | case ARPHRD_CISCO: | |
177 | return ZEBRA_LLT_CHDLC; | |
178 | case ARPHRD_LAPB: | |
179 | return ZEBRA_LLT_LAPB; | |
180 | case ARPHRD_RAWHDLC: | |
181 | return ZEBRA_LLT_RAWHDLC; | |
182 | case ARPHRD_TUNNEL: | |
183 | return ZEBRA_LLT_IPIP; | |
184 | case ARPHRD_TUNNEL6: | |
185 | return ZEBRA_LLT_IPIP6; | |
186 | case ARPHRD_FRAD: | |
187 | return ZEBRA_LLT_FRAD; | |
188 | case ARPHRD_SKIP: | |
189 | return ZEBRA_LLT_SKIP; | |
190 | case ARPHRD_LOOPBACK: | |
191 | return ZEBRA_LLT_LOOPBACK; | |
192 | case ARPHRD_LOCALTLK: | |
193 | return ZEBRA_LLT_LOCALTLK; | |
194 | case ARPHRD_FDDI: | |
195 | return ZEBRA_LLT_FDDI; | |
196 | case ARPHRD_SIT: | |
197 | return ZEBRA_LLT_SIT; | |
198 | case ARPHRD_IPDDP: | |
199 | return ZEBRA_LLT_IPDDP; | |
200 | case ARPHRD_IPGRE: | |
201 | return ZEBRA_LLT_IPGRE; | |
202 | case ARPHRD_PIMREG: | |
203 | return ZEBRA_LLT_PIMREG; | |
204 | case ARPHRD_HIPPI: | |
205 | return ZEBRA_LLT_HIPPI; | |
206 | case ARPHRD_ECONET: | |
207 | return ZEBRA_LLT_ECONET; | |
208 | case ARPHRD_IRDA: | |
209 | return ZEBRA_LLT_IRDA; | |
210 | case ARPHRD_FCPP: | |
211 | return ZEBRA_LLT_FCPP; | |
212 | case ARPHRD_FCAL: | |
213 | return ZEBRA_LLT_FCAL; | |
214 | case ARPHRD_FCPL: | |
215 | return ZEBRA_LLT_FCPL; | |
216 | case ARPHRD_FCFABRIC: | |
217 | return ZEBRA_LLT_FCFABRIC; | |
218 | case ARPHRD_IEEE802_TR: | |
219 | return ZEBRA_LLT_IEEE802_TR; | |
220 | case ARPHRD_IEEE80211: | |
221 | return ZEBRA_LLT_IEEE80211; | |
4268e09e | 222 | #ifdef ARPHRD_IEEE802154 |
d62a17ae | 223 | case ARPHRD_IEEE802154: |
224 | return ZEBRA_LLT_IEEE802154; | |
4268e09e | 225 | #endif |
1fdc9eae | 226 | #ifdef ARPHRD_IP6GRE |
d62a17ae | 227 | case ARPHRD_IP6GRE: |
228 | return ZEBRA_LLT_IP6GRE; | |
1fdc9eae | 229 | #endif |
230 | #ifdef ARPHRD_IEEE802154_PHY | |
d62a17ae | 231 | case ARPHRD_IEEE802154_PHY: |
232 | return ZEBRA_LLT_IEEE802154_PHY; | |
1fdc9eae | 233 | #endif |
234 | ||
d62a17ae | 235 | default: |
236 | return ZEBRA_LLT_UNKNOWN; | |
237 | } | |
1fdc9eae | 238 | } |
239 | ||
42b56639 | 240 | static inline void zebra_if_set_ziftype(struct interface *ifp, |
e6f2bec0 | 241 | enum zebra_iftype zif_type, |
a81982fa | 242 | enum zebra_slave_iftype zif_slave_type) |
42b56639 AK |
243 | { |
244 | struct zebra_if *zif; | |
245 | ||
246 | zif = (struct zebra_if *)ifp->info; | |
247 | zif->zif_slave_type = zif_slave_type; | |
248 | ||
249 | if (zif->zif_type != zif_type) { | |
250 | zif->zif_type = zif_type; | |
251 | /* If the if_type has been set to bond initialize ES info | |
252 | * against it. XXX - note that we don't handle the case where | |
253 | * a zif changes from bond to non-bond; it is really | |
254 | * an unexpected/error condition. | |
255 | */ | |
256 | zebra_evpn_if_init(zif); | |
257 | } | |
258 | } | |
259 | ||
b9368db9 | 260 | static void netlink_determine_zebra_iftype(const char *kind, |
e6f2bec0 | 261 | enum zebra_iftype *zif_type) |
6675513d | 262 | { |
d62a17ae | 263 | *zif_type = ZEBRA_IF_OTHER; |
264 | ||
265 | if (!kind) | |
266 | return; | |
267 | ||
268 | if (strcmp(kind, "vrf") == 0) | |
269 | *zif_type = ZEBRA_IF_VRF; | |
270 | else if (strcmp(kind, "bridge") == 0) | |
271 | *zif_type = ZEBRA_IF_BRIDGE; | |
272 | else if (strcmp(kind, "vlan") == 0) | |
273 | *zif_type = ZEBRA_IF_VLAN; | |
274 | else if (strcmp(kind, "vxlan") == 0) | |
275 | *zif_type = ZEBRA_IF_VXLAN; | |
1a98c087 MK |
276 | else if (strcmp(kind, "macvlan") == 0) |
277 | *zif_type = ZEBRA_IF_MACVLAN; | |
0e4864ea PG |
278 | else if (strcmp(kind, "veth") == 0) |
279 | *zif_type = ZEBRA_IF_VETH; | |
b9368db9 DD |
280 | else if (strcmp(kind, "bond") == 0) |
281 | *zif_type = ZEBRA_IF_BOND; | |
282 | else if (strcmp(kind, "bond_slave") == 0) | |
283 | *zif_type = ZEBRA_IF_BOND_SLAVE; | |
077c07cc PG |
284 | else if (strcmp(kind, "gre") == 0) |
285 | *zif_type = ZEBRA_IF_GRE; | |
6675513d | 286 | } |
52d8f0d8 | 287 | |
d62a17ae | 288 | static void netlink_vrf_change(struct nlmsghdr *h, struct rtattr *tb, |
5e031198 | 289 | uint32_t ns_id, const char *name) |
1fdc9eae | 290 | { |
d62a17ae | 291 | struct ifinfomsg *ifi; |
292 | struct rtattr *linkinfo[IFLA_INFO_MAX + 1]; | |
293 | struct rtattr *attr[IFLA_VRF_MAX + 1]; | |
75d26fb3 | 294 | struct vrf *vrf = NULL; |
d62a17ae | 295 | struct zebra_vrf *zvrf; |
d7c0a89a | 296 | uint32_t nl_table_id; |
d62a17ae | 297 | |
298 | ifi = NLMSG_DATA(h); | |
299 | ||
c9d842c7 | 300 | netlink_parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb); |
d62a17ae | 301 | |
302 | if (!linkinfo[IFLA_INFO_DATA]) { | |
303 | if (IS_ZEBRA_DEBUG_KERNEL) | |
304 | zlog_debug( | |
305 | "%s: IFLA_INFO_DATA missing from VRF message: %s", | |
306 | __func__, name); | |
307 | return; | |
308 | } | |
309 | ||
c9d842c7 DS |
310 | netlink_parse_rtattr_nested(attr, IFLA_VRF_MAX, |
311 | linkinfo[IFLA_INFO_DATA]); | |
d62a17ae | 312 | if (!attr[IFLA_VRF_TABLE]) { |
313 | if (IS_ZEBRA_DEBUG_KERNEL) | |
314 | zlog_debug( | |
315 | "%s: IFLA_VRF_TABLE missing from VRF message: %s", | |
316 | __func__, name); | |
317 | return; | |
1fdc9eae | 318 | } |
319 | ||
d7c0a89a | 320 | nl_table_id = *(uint32_t *)RTA_DATA(attr[IFLA_VRF_TABLE]); |
d62a17ae | 321 | |
322 | if (h->nlmsg_type == RTM_NEWLINK) { | |
323 | if (IS_ZEBRA_DEBUG_KERNEL) | |
324 | zlog_debug("RTM_NEWLINK for VRF %s(%u) table %u", name, | |
325 | ifi->ifi_index, nl_table_id); | |
326 | ||
2e86d16d RW |
327 | if (!vrf_lookup_by_id((vrf_id_t)ifi->ifi_index)) { |
328 | vrf_id_t exist_id; | |
5e031198 | 329 | |
2e86d16d RW |
330 | exist_id = vrf_lookup_by_table(nl_table_id, ns_id); |
331 | if (exist_id != VRF_DEFAULT) { | |
332 | vrf = vrf_lookup_by_id(exist_id); | |
333 | ||
334 | flog_err( | |
335 | EC_ZEBRA_VRF_MISCONFIGURED, | |
336 | "VRF %s id %u table id overlaps existing vrf %s, misconfiguration exiting", | |
337 | name, ifi->ifi_index, vrf->name); | |
338 | exit(-1); | |
339 | } | |
5e031198 | 340 | } |
2e86d16d | 341 | |
75d26fb3 | 342 | vrf = vrf_update((vrf_id_t)ifi->ifi_index, name); |
d62a17ae | 343 | if (!vrf) { |
450971aa | 344 | flog_err(EC_LIB_INTERFACE, "VRF %s id %u not created", |
1c50c1c0 | 345 | name, ifi->ifi_index); |
d62a17ae | 346 | return; |
347 | } | |
348 | ||
d62a17ae | 349 | /* |
350 | * This is the only place that we get the actual kernel table_id | |
351 | * being used. We need it to set the table_id of the routes | |
352 | * we are passing to the kernel.... And to throw some totally | |
353 | * awesome parties. that too. | |
593406a1 DS |
354 | * |
355 | * At this point we *must* have a zvrf because the vrf_create | |
356 | * callback creates one. We *must* set the table id | |
357 | * before the vrf_enable because of( at the very least ) | |
358 | * static routes being delayed for installation until | |
359 | * during the vrf_enable callbacks. | |
d62a17ae | 360 | */ |
361 | zvrf = (struct zebra_vrf *)vrf->info; | |
362 | zvrf->table_id = nl_table_id; | |
593406a1 DS |
363 | |
364 | /* Enable the created VRF. */ | |
365 | if (!vrf_enable(vrf)) { | |
450971aa | 366 | flog_err(EC_LIB_INTERFACE, |
1c50c1c0 QY |
367 | "Failed to enable VRF %s id %u", name, |
368 | ifi->ifi_index); | |
593406a1 DS |
369 | return; |
370 | } | |
371 | ||
d62a17ae | 372 | } else // h->nlmsg_type == RTM_DELLINK |
373 | { | |
374 | if (IS_ZEBRA_DEBUG_KERNEL) | |
375 | zlog_debug("RTM_DELLINK for VRF %s(%u)", name, | |
376 | ifi->ifi_index); | |
377 | ||
378 | vrf = vrf_lookup_by_id((vrf_id_t)ifi->ifi_index); | |
379 | ||
380 | if (!vrf) { | |
e914ccbe | 381 | flog_warn(EC_ZEBRA_VRF_NOT_FOUND, "%s: vrf not found", |
9df414fe | 382 | __func__); |
d62a17ae | 383 | return; |
384 | } | |
385 | ||
386 | vrf_delete(vrf); | |
387 | } | |
1fdc9eae | 388 | } |
389 | ||
67188ca2 | 390 | static uint32_t get_iflink_speed(struct interface *interface, int *error) |
535fe877 | 391 | { |
d62a17ae | 392 | struct ifreq ifdata; |
393 | struct ethtool_cmd ecmd; | |
394 | int sd; | |
395 | int rc; | |
0268f30e | 396 | const char *ifname = interface->name; |
d62a17ae | 397 | |
594c2878 JF |
398 | if (error) |
399 | *error = 0; | |
d62a17ae | 400 | /* initialize struct */ |
401 | memset(&ifdata, 0, sizeof(ifdata)); | |
402 | ||
403 | /* set interface name */ | |
0af35d90 | 404 | strlcpy(ifdata.ifr_name, ifname, sizeof(ifdata.ifr_name)); |
d62a17ae | 405 | |
406 | /* initialize ethtool interface */ | |
407 | memset(&ecmd, 0, sizeof(ecmd)); | |
408 | ecmd.cmd = ETHTOOL_GSET; /* ETHTOOL_GLINK */ | |
ba85366a | 409 | ifdata.ifr_data = (caddr_t)&ecmd; |
d62a17ae | 410 | |
d2fb26ef | 411 | /* use ioctl to get speed of an interface */ |
0cf6db21 | 412 | frr_with_privs(&zserv_privs) { |
01b9e3fd | 413 | sd = vrf_socket(PF_INET, SOCK_DGRAM, IPPROTO_IP, |
096f7609 | 414 | interface->vrf->vrf_id, NULL); |
01b9e3fd DL |
415 | if (sd < 0) { |
416 | if (IS_ZEBRA_DEBUG_KERNEL) | |
417 | zlog_debug("Failure to read interface %s speed: %d %s", | |
418 | ifname, errno, safe_strerror(errno)); | |
594c2878 JF |
419 | /* no vrf socket creation may probably mean vrf issue */ |
420 | if (error) | |
421 | *error = -1; | |
01b9e3fd DL |
422 | return 0; |
423 | } | |
d2fb26ef | 424 | /* Get the current link state for the interface */ |
096f7609 | 425 | rc = vrf_ioctl(interface->vrf->vrf_id, sd, SIOCETHTOOL, |
633fc9b1 | 426 | (char *)&ifdata); |
01b9e3fd | 427 | } |
d62a17ae | 428 | if (rc < 0) { |
f767cee4 | 429 | if (errno != EOPNOTSUPP && IS_ZEBRA_DEBUG_KERNEL) |
bd7d0299 DS |
430 | zlog_debug( |
431 | "IOCTL failure to read interface %s speed: %d %s", | |
432 | ifname, errno, safe_strerror(errno)); | |
594c2878 JF |
433 | /* no device means interface unreachable */ |
434 | if (errno == ENODEV && error) | |
435 | *error = -1; | |
d62a17ae | 436 | ecmd.speed_hi = 0; |
437 | ecmd.speed = 0; | |
438 | } | |
439 | ||
440 | close(sd); | |
441 | ||
67188ca2 | 442 | return ((uint32_t)ecmd.speed_hi << 16) | ecmd.speed; |
535fe877 DS |
443 | } |
444 | ||
594c2878 | 445 | uint32_t kernel_get_speed(struct interface *ifp, int *error) |
dc7b3cae | 446 | { |
594c2878 | 447 | return get_iflink_speed(ifp, error); |
dc7b3cae DS |
448 | } |
449 | ||
62b4b7e4 PG |
450 | static ssize_t |
451 | netlink_gre_set_msg_encoder(struct zebra_dplane_ctx *ctx, void *buf, | |
452 | size_t buflen) | |
453 | { | |
454 | struct { | |
455 | struct nlmsghdr n; | |
456 | struct ifinfomsg ifi; | |
457 | char buf[]; | |
458 | } *req = buf; | |
459 | uint32_t link_idx; | |
db51f0cd | 460 | unsigned int mtu; |
62b4b7e4 | 461 | struct rtattr *rta_info, *rta_data; |
e3d3fa06 | 462 | const struct zebra_l2info_gre *gre_info; |
62b4b7e4 PG |
463 | |
464 | if (buflen < sizeof(*req)) | |
465 | return 0; | |
466 | memset(req, 0, sizeof(*req)); | |
467 | ||
468 | req->n.nlmsg_type = RTM_NEWLINK; | |
469 | req->n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
470 | req->n.nlmsg_flags = NLM_F_REQUEST; | |
471 | ||
472 | req->ifi.ifi_index = dplane_ctx_get_ifindex(ctx); | |
e3d3fa06 PG |
473 | |
474 | gre_info = dplane_ctx_gre_get_info(ctx); | |
475 | if (!gre_info) | |
476 | return 0; | |
477 | ||
62b4b7e4 PG |
478 | req->ifi.ifi_change = 0xFFFFFFFF; |
479 | link_idx = dplane_ctx_gre_get_link_ifindex(ctx); | |
db51f0cd PG |
480 | mtu = dplane_ctx_gre_get_mtu(ctx); |
481 | ||
482 | if (mtu && !nl_attr_put32(&req->n, buflen, IFLA_MTU, mtu)) | |
483 | return 0; | |
62b4b7e4 PG |
484 | |
485 | rta_info = nl_attr_nest(&req->n, buflen, IFLA_LINKINFO); | |
486 | if (!rta_info) | |
487 | return 0; | |
e3d3fa06 | 488 | |
62b4b7e4 PG |
489 | if (!nl_attr_put(&req->n, buflen, IFLA_INFO_KIND, "gre", 3)) |
490 | return 0; | |
e3d3fa06 | 491 | |
62b4b7e4 | 492 | rta_data = nl_attr_nest(&req->n, buflen, IFLA_INFO_DATA); |
e3d3fa06 | 493 | if (!rta_data) |
62b4b7e4 | 494 | return 0; |
e3d3fa06 | 495 | |
62b4b7e4 PG |
496 | if (!nl_attr_put32(&req->n, buflen, IFLA_GRE_LINK, link_idx)) |
497 | return 0; | |
e3d3fa06 PG |
498 | |
499 | if (gre_info->vtep_ip.s_addr && | |
500 | !nl_attr_put32(&req->n, buflen, IFLA_GRE_LOCAL, | |
501 | gre_info->vtep_ip.s_addr)) | |
502 | return 0; | |
503 | ||
504 | if (gre_info->vtep_ip_remote.s_addr && | |
505 | !nl_attr_put32(&req->n, buflen, IFLA_GRE_REMOTE, | |
506 | gre_info->vtep_ip_remote.s_addr)) | |
507 | return 0; | |
508 | ||
509 | if (gre_info->ikey && | |
510 | !nl_attr_put32(&req->n, buflen, IFLA_GRE_IKEY, | |
511 | gre_info->ikey)) | |
512 | return 0; | |
513 | if (gre_info->okey && | |
514 | !nl_attr_put32(&req->n, buflen, IFLA_GRE_IKEY, | |
515 | gre_info->okey)) | |
516 | return 0; | |
517 | ||
62b4b7e4 PG |
518 | nl_attr_nest_end(&req->n, rta_data); |
519 | nl_attr_nest_end(&req->n, rta_info); | |
520 | ||
521 | return NLMSG_ALIGN(req->n.nlmsg_len); | |
522 | } | |
523 | ||
d62a17ae | 524 | static int netlink_extract_bridge_info(struct rtattr *link_data, |
525 | struct zebra_l2info_bridge *bridge_info) | |
6675513d | 526 | { |
d62a17ae | 527 | struct rtattr *attr[IFLA_BR_MAX + 1]; |
528 | ||
529 | memset(bridge_info, 0, sizeof(*bridge_info)); | |
c9d842c7 | 530 | netlink_parse_rtattr_nested(attr, IFLA_BR_MAX, link_data); |
d62a17ae | 531 | if (attr[IFLA_BR_VLAN_FILTERING]) |
784d88aa | 532 | bridge_info->bridge.vlan_aware = |
d7c0a89a | 533 | *(uint8_t *)RTA_DATA(attr[IFLA_BR_VLAN_FILTERING]); |
d62a17ae | 534 | return 0; |
6675513d | 535 | } |
536 | ||
d62a17ae | 537 | static int netlink_extract_vlan_info(struct rtattr *link_data, |
538 | struct zebra_l2info_vlan *vlan_info) | |
6675513d | 539 | { |
d62a17ae | 540 | struct rtattr *attr[IFLA_VLAN_MAX + 1]; |
541 | vlanid_t vid_in_msg; | |
542 | ||
543 | memset(vlan_info, 0, sizeof(*vlan_info)); | |
c9d842c7 | 544 | netlink_parse_rtattr_nested(attr, IFLA_VLAN_MAX, link_data); |
d62a17ae | 545 | if (!attr[IFLA_VLAN_ID]) { |
546 | if (IS_ZEBRA_DEBUG_KERNEL) | |
547 | zlog_debug("IFLA_VLAN_ID missing from VLAN IF message"); | |
548 | return -1; | |
549 | } | |
550 | ||
551 | vid_in_msg = *(vlanid_t *)RTA_DATA(attr[IFLA_VLAN_ID]); | |
552 | vlan_info->vid = vid_in_msg; | |
553 | return 0; | |
6675513d | 554 | } |
555 | ||
077c07cc PG |
556 | static int netlink_extract_gre_info(struct rtattr *link_data, |
557 | struct zebra_l2info_gre *gre_info) | |
558 | { | |
559 | struct rtattr *attr[IFLA_GRE_MAX + 1]; | |
560 | ||
561 | memset(gre_info, 0, sizeof(*gre_info)); | |
562 | memset(attr, 0, sizeof(attr)); | |
269b69d7 | 563 | netlink_parse_rtattr_nested(attr, IFLA_GRE_MAX, link_data); |
077c07cc PG |
564 | |
565 | if (!attr[IFLA_GRE_LOCAL]) { | |
566 | if (IS_ZEBRA_DEBUG_KERNEL) | |
567 | zlog_debug( | |
568 | "IFLA_GRE_LOCAL missing from GRE IF message"); | |
569 | } else | |
570 | gre_info->vtep_ip = | |
571 | *(struct in_addr *)RTA_DATA(attr[IFLA_GRE_LOCAL]); | |
572 | if (!attr[IFLA_GRE_REMOTE]) { | |
573 | if (IS_ZEBRA_DEBUG_KERNEL) | |
574 | zlog_debug( | |
575 | "IFLA_GRE_REMOTE missing from GRE IF message"); | |
576 | } else | |
577 | gre_info->vtep_ip_remote = | |
578 | *(struct in_addr *)RTA_DATA(attr[IFLA_GRE_REMOTE]); | |
579 | ||
580 | if (!attr[IFLA_GRE_LINK]) { | |
581 | if (IS_ZEBRA_DEBUG_KERNEL) | |
582 | zlog_debug("IFLA_GRE_LINK missing from GRE IF message"); | |
62b4b7e4 | 583 | } else { |
077c07cc PG |
584 | gre_info->ifindex_link = |
585 | *(ifindex_t *)RTA_DATA(attr[IFLA_GRE_LINK]); | |
62b4b7e4 PG |
586 | if (IS_ZEBRA_DEBUG_KERNEL) |
587 | zlog_debug("IFLA_GRE_LINK obtained is %u", | |
588 | gre_info->ifindex_link); | |
589 | } | |
077c07cc PG |
590 | if (attr[IFLA_GRE_IKEY]) |
591 | gre_info->ikey = *(uint32_t *)RTA_DATA(attr[IFLA_GRE_IKEY]); | |
592 | if (attr[IFLA_GRE_OKEY]) | |
593 | gre_info->okey = *(uint32_t *)RTA_DATA(attr[IFLA_GRE_OKEY]); | |
594 | return 0; | |
595 | } | |
596 | ||
d62a17ae | 597 | static int netlink_extract_vxlan_info(struct rtattr *link_data, |
598 | struct zebra_l2info_vxlan *vxl_info) | |
6675513d | 599 | { |
784d88aa | 600 | uint8_t svd = 0; |
d62a17ae | 601 | struct rtattr *attr[IFLA_VXLAN_MAX + 1]; |
602 | vni_t vni_in_msg; | |
603 | struct in_addr vtep_ip_in_msg; | |
14ddb3d9 | 604 | ifindex_t ifindex_link; |
d62a17ae | 605 | |
606 | memset(vxl_info, 0, sizeof(*vxl_info)); | |
c9d842c7 | 607 | netlink_parse_rtattr_nested(attr, IFLA_VXLAN_MAX, link_data); |
784d88aa SR |
608 | if (attr[IFLA_VXLAN_COLLECT_METADATA]) { |
609 | svd = *(uint8_t *)RTA_DATA(attr[IFLA_VXLAN_COLLECT_METADATA]); | |
d62a17ae | 610 | if (IS_ZEBRA_DEBUG_KERNEL) |
611 | zlog_debug( | |
784d88aa SR |
612 | "IFLA_VXLAN_COLLECT_METADATA=%u in VXLAN IF message", |
613 | svd); | |
614 | } | |
615 | ||
616 | if (!svd) { | |
9464e5b8 SR |
617 | /* |
618 | * In case of svd we will not get vni info directly from the | |
619 | * device | |
620 | */ | |
784d88aa SR |
621 | if (!attr[IFLA_VXLAN_ID]) { |
622 | if (IS_ZEBRA_DEBUG_KERNEL) | |
623 | zlog_debug( | |
624 | "IFLA_VXLAN_ID missing from VXLAN IF message"); | |
625 | return -1; | |
626 | } | |
627 | ||
628 | vxl_info->vni_info.iftype = ZEBRA_VXLAN_IF_VNI; | |
629 | vni_in_msg = *(vni_t *)RTA_DATA(attr[IFLA_VXLAN_ID]); | |
630 | vxl_info->vni_info.vni.vni = vni_in_msg; | |
631 | } else { | |
632 | vxl_info->vni_info.iftype = ZEBRA_VXLAN_IF_SVD; | |
d62a17ae | 633 | } |
634 | ||
d62a17ae | 635 | if (!attr[IFLA_VXLAN_LOCAL]) { |
636 | if (IS_ZEBRA_DEBUG_KERNEL) | |
637 | zlog_debug( | |
638 | "IFLA_VXLAN_LOCAL missing from VXLAN IF message"); | |
639 | } else { | |
640 | vtep_ip_in_msg = | |
641 | *(struct in_addr *)RTA_DATA(attr[IFLA_VXLAN_LOCAL]); | |
642 | vxl_info->vtep_ip = vtep_ip_in_msg; | |
643 | } | |
644 | ||
d7fe235c | 645 | if (attr[IFLA_VXLAN_GROUP]) { |
784d88aa SR |
646 | if (!svd) |
647 | vxl_info->vni_info.vni.mcast_grp = | |
648 | *(struct in_addr *)RTA_DATA( | |
649 | attr[IFLA_VXLAN_GROUP]); | |
d7fe235c AK |
650 | } |
651 | ||
14ddb3d9 PG |
652 | if (!attr[IFLA_VXLAN_LINK]) { |
653 | if (IS_ZEBRA_DEBUG_KERNEL) | |
3efd0893 | 654 | zlog_debug("IFLA_VXLAN_LINK missing from VXLAN IF message"); |
14ddb3d9 PG |
655 | } else { |
656 | ifindex_link = | |
657 | *(ifindex_t *)RTA_DATA(attr[IFLA_VXLAN_LINK]); | |
658 | vxl_info->ifindex_link = ifindex_link; | |
659 | } | |
d62a17ae | 660 | return 0; |
6675513d | 661 | } |
662 | ||
663 | /* | |
664 | * Extract and save L2 params (of interest) for an interface. When a | |
665 | * bridge interface is added or updated, take further actions to map | |
666 | * its members. Likewise, for VxLAN interface. | |
667 | */ | |
d62a17ae | 668 | static void netlink_interface_update_l2info(struct interface *ifp, |
14ddb3d9 PG |
669 | struct rtattr *link_data, int add, |
670 | ns_id_t link_nsid) | |
6675513d | 671 | { |
d62a17ae | 672 | if (!link_data) |
673 | return; | |
674 | ||
675 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { | |
676 | struct zebra_l2info_bridge bridge_info; | |
677 | ||
678 | netlink_extract_bridge_info(link_data, &bridge_info); | |
679 | zebra_l2_bridge_add_update(ifp, &bridge_info, add); | |
680 | } else if (IS_ZEBRA_IF_VLAN(ifp)) { | |
681 | struct zebra_l2info_vlan vlan_info; | |
682 | ||
683 | netlink_extract_vlan_info(link_data, &vlan_info); | |
684 | zebra_l2_vlanif_update(ifp, &vlan_info); | |
243b74ed AK |
685 | zebra_evpn_acc_bd_svi_set(ifp->info, NULL, |
686 | !!if_is_operative(ifp)); | |
d62a17ae | 687 | } else if (IS_ZEBRA_IF_VXLAN(ifp)) { |
688 | struct zebra_l2info_vxlan vxlan_info; | |
689 | ||
690 | netlink_extract_vxlan_info(link_data, &vxlan_info); | |
14ddb3d9 | 691 | vxlan_info.link_nsid = link_nsid; |
d62a17ae | 692 | zebra_l2_vxlanif_add_update(ifp, &vxlan_info, add); |
14ddb3d9 PG |
693 | if (link_nsid != NS_UNKNOWN && |
694 | vxlan_info.ifindex_link) | |
695 | zebra_if_update_link(ifp, vxlan_info.ifindex_link, | |
696 | link_nsid); | |
077c07cc PG |
697 | } else if (IS_ZEBRA_IF_GRE(ifp)) { |
698 | struct zebra_l2info_gre gre_info; | |
699 | ||
700 | netlink_extract_gre_info(link_data, &gre_info); | |
701 | gre_info.link_nsid = link_nsid; | |
702 | zebra_l2_greif_add_update(ifp, &gre_info, add); | |
703 | if (link_nsid != NS_UNKNOWN && | |
704 | gre_info.ifindex_link) | |
705 | zebra_if_update_link(ifp, gre_info.ifindex_link, | |
706 | link_nsid); | |
d62a17ae | 707 | } |
6675513d | 708 | } |
709 | ||
131a9a2e SR |
710 | static int netlink_bridge_vxlan_vlan_vni_map_update(struct interface *ifp, |
711 | struct rtattr *af_spec) | |
712 | { | |
713 | int rem; | |
714 | vni_t vni_id; | |
715 | vlanid_t vid; | |
716 | uint16_t flags; | |
717 | struct rtattr *i; | |
718 | struct zebra_vxlan_vni vni; | |
719 | struct zebra_vxlan_vni *vnip; | |
720 | struct hash *vni_table = NULL; | |
721 | struct zebra_vxlan_vni vni_end; | |
722 | struct zebra_vxlan_vni vni_start; | |
723 | struct rtattr *aftb[IFLA_BRIDGE_VLAN_TUNNEL_MAX + 1]; | |
724 | ||
e8a392d9 SR |
725 | memset(&vni_start, 0, sizeof(vni_start)); |
726 | memset(&vni_end, 0, sizeof(vni_end)); | |
727 | ||
131a9a2e SR |
728 | for (i = RTA_DATA(af_spec), rem = RTA_PAYLOAD(af_spec); RTA_OK(i, rem); |
729 | i = RTA_NEXT(i, rem)) { | |
730 | ||
731 | if (i->rta_type != IFLA_BRIDGE_VLAN_TUNNEL_INFO) | |
732 | continue; | |
733 | ||
734 | memset(aftb, 0, sizeof(aftb)); | |
735 | netlink_parse_rtattr_nested(aftb, IFLA_BRIDGE_VLAN_TUNNEL_MAX, | |
736 | i); | |
0bbad9d1 SW |
737 | if (!aftb[IFLA_BRIDGE_VLAN_TUNNEL_ID] || |
738 | !aftb[IFLA_BRIDGE_VLAN_TUNNEL_VID]) | |
131a9a2e SR |
739 | /* vlan-vni info missing */ |
740 | return 0; | |
741 | ||
742 | flags = 0; | |
743 | memset(&vni, 0, sizeof(vni)); | |
744 | ||
745 | vni.vni = *(vni_t *)RTA_DATA(aftb[IFLA_BRIDGE_VLAN_TUNNEL_ID]); | |
746 | vni.access_vlan = *(vlanid_t *)RTA_DATA( | |
747 | aftb[IFLA_BRIDGE_VLAN_TUNNEL_VID]); | |
748 | ||
749 | if (aftb[IFLA_BRIDGE_VLAN_TUNNEL_FLAGS]) | |
750 | flags = *(uint16_t *)RTA_DATA( | |
751 | aftb[IFLA_BRIDGE_VLAN_TUNNEL_FLAGS]); | |
752 | ||
753 | if (flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { | |
754 | vni_start = vni; | |
755 | continue; | |
756 | } | |
757 | ||
758 | if (flags & BRIDGE_VLAN_INFO_RANGE_END) | |
759 | vni_end = vni; | |
760 | ||
761 | if (!(flags & BRIDGE_VLAN_INFO_RANGE_END)) { | |
762 | vni_start = vni; | |
763 | vni_end = vni; | |
764 | } | |
765 | ||
766 | if (IS_ZEBRA_DEBUG_KERNEL) | |
767 | zlog_debug( | |
768 | "Vlan-Vni(%d:%d-%d:%d) update for VxLAN IF %s(%u)", | |
769 | vni_start.access_vlan, vni_end.access_vlan, | |
770 | vni_start.vni, vni_end.vni, ifp->name, | |
771 | ifp->ifindex); | |
772 | ||
773 | if (!vni_table) { | |
774 | vni_table = zebra_vxlan_vni_table_create(); | |
775 | if (!vni_table) | |
776 | return 0; | |
777 | } | |
778 | ||
779 | for (vid = vni_start.access_vlan, vni_id = vni_start.vni; | |
780 | vid <= vni_end.access_vlan; vid++, vni_id++) { | |
781 | ||
782 | memset(&vni, 0, sizeof(vni)); | |
783 | vni.vni = vni_id; | |
784 | vni.access_vlan = vid; | |
785 | vnip = hash_get(vni_table, &vni, zebra_vxlan_vni_alloc); | |
786 | if (!vnip) | |
787 | return 0; | |
788 | } | |
789 | ||
790 | memset(&vni_start, 0, sizeof(vni_start)); | |
791 | memset(&vni_end, 0, sizeof(vni_end)); | |
792 | } | |
793 | ||
794 | if (vni_table) | |
795 | zebra_vxlan_if_vni_table_add_update(ifp, vni_table); | |
796 | ||
797 | return 0; | |
798 | } | |
799 | ||
42b56639 AK |
800 | static int netlink_bridge_vxlan_update(struct interface *ifp, |
801 | struct rtattr *af_spec) | |
802 | { | |
803 | struct rtattr *aftb[IFLA_BRIDGE_MAX + 1]; | |
804 | struct bridge_vlan_info *vinfo; | |
131a9a2e | 805 | struct zebra_if *zif; |
42b56639 AK |
806 | vlanid_t access_vlan; |
807 | ||
ec897751 | 808 | if (!af_spec) |
809 | return 0; | |
810 | ||
131a9a2e SR |
811 | zif = (struct zebra_if *)ifp->info; |
812 | ||
813 | /* Single vxlan devices has vni-vlan range to update */ | |
814 | if (IS_ZEBRA_VXLAN_IF_SVD(zif)) | |
815 | return netlink_bridge_vxlan_vlan_vni_map_update(ifp, af_spec); | |
816 | ||
42b56639 AK |
817 | /* There is a 1-to-1 mapping of VLAN to VxLAN - hence |
818 | * only 1 access VLAN is accepted. | |
819 | */ | |
c9d842c7 | 820 | netlink_parse_rtattr_nested(aftb, IFLA_BRIDGE_MAX, af_spec); |
42b56639 AK |
821 | if (!aftb[IFLA_BRIDGE_VLAN_INFO]) |
822 | return 0; | |
823 | ||
824 | vinfo = RTA_DATA(aftb[IFLA_BRIDGE_VLAN_INFO]); | |
825 | if (!(vinfo->flags & BRIDGE_VLAN_INFO_PVID)) | |
826 | return 0; | |
827 | ||
828 | access_vlan = (vlanid_t)vinfo->vid; | |
829 | if (IS_ZEBRA_DEBUG_KERNEL) | |
830 | zlog_debug("Access VLAN %u for VxLAN IF %s(%u)", access_vlan, | |
831 | ifp->name, ifp->ifindex); | |
832 | zebra_l2_vxlanif_update_access_vlan(ifp, access_vlan); | |
833 | return 0; | |
834 | } | |
835 | ||
836 | static void netlink_bridge_vlan_update(struct interface *ifp, | |
837 | struct rtattr *af_spec) | |
838 | { | |
839 | struct rtattr *i; | |
840 | int rem; | |
841 | uint16_t vid_range_start = 0; | |
842 | struct zebra_if *zif; | |
843 | bitfield_t old_vlan_bitmap; | |
844 | struct bridge_vlan_info *vinfo; | |
845 | ||
846 | zif = (struct zebra_if *)ifp->info; | |
847 | ||
848 | /* cache the old bitmap addrs */ | |
849 | old_vlan_bitmap = zif->vlan_bitmap; | |
850 | /* create a new bitmap space for re-eval */ | |
851 | bf_init(zif->vlan_bitmap, IF_VLAN_BITMAP_MAX); | |
852 | ||
ec897751 | 853 | if (af_spec) { |
854 | for (i = RTA_DATA(af_spec), rem = RTA_PAYLOAD(af_spec); | |
855 | RTA_OK(i, rem); i = RTA_NEXT(i, rem)) { | |
42b56639 | 856 | |
ec897751 | 857 | if (i->rta_type != IFLA_BRIDGE_VLAN_INFO) |
858 | continue; | |
42b56639 | 859 | |
ec897751 | 860 | vinfo = RTA_DATA(i); |
42b56639 | 861 | |
ec897751 | 862 | if (vinfo->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) { |
863 | vid_range_start = vinfo->vid; | |
864 | continue; | |
865 | } | |
42b56639 | 866 | |
ec897751 | 867 | if (!(vinfo->flags & BRIDGE_VLAN_INFO_RANGE_END)) |
868 | vid_range_start = vinfo->vid; | |
42b56639 | 869 | |
ec897751 | 870 | zebra_vlan_bitmap_compute(ifp, vid_range_start, |
871 | vinfo->vid); | |
872 | } | |
42b56639 AK |
873 | } |
874 | ||
875 | zebra_vlan_mbr_re_eval(ifp, old_vlan_bitmap); | |
876 | ||
877 | bf_free(old_vlan_bitmap); | |
878 | } | |
879 | ||
d62a17ae | 880 | static int netlink_bridge_interface(struct nlmsghdr *h, int len, ns_id_t ns_id, |
881 | int startup) | |
6675513d | 882 | { |
d62a17ae | 883 | char *name = NULL; |
884 | struct ifinfomsg *ifi; | |
885 | struct rtattr *tb[IFLA_MAX + 1]; | |
886 | struct interface *ifp; | |
42b56639 AK |
887 | struct zebra_if *zif; |
888 | struct rtattr *af_spec; | |
d62a17ae | 889 | |
890 | /* Fetch name and ifindex */ | |
891 | ifi = NLMSG_DATA(h); | |
d62a17ae | 892 | netlink_parse_rtattr(tb, IFLA_MAX, IFLA_RTA(ifi), len); |
893 | ||
894 | if (tb[IFLA_IFNAME] == NULL) | |
895 | return -1; | |
896 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
897 | ||
898 | /* The interface should already be known, if not discard. */ | |
899 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(ns_id), ifi->ifi_index); | |
900 | if (!ifp) { | |
9df414fe QY |
901 | zlog_debug("Cannot find bridge IF %s(%u)", name, |
902 | ifi->ifi_index); | |
d62a17ae | 903 | return 0; |
904 | } | |
d62a17ae | 905 | |
906 | /* We are only interested in the access VLAN i.e., AF_SPEC */ | |
42b56639 | 907 | af_spec = tb[IFLA_AF_SPEC]; |
d62a17ae | 908 | |
42b56639 AK |
909 | if (IS_ZEBRA_IF_VXLAN(ifp)) |
910 | return netlink_bridge_vxlan_update(ifp, af_spec); | |
d62a17ae | 911 | |
42b56639 AK |
912 | /* build vlan bitmap associated with this interface if that |
913 | * device type is interested in the vlans | |
914 | */ | |
915 | zif = (struct zebra_if *)ifp->info; | |
916 | if (bf_is_inited(zif->vlan_bitmap)) | |
917 | netlink_bridge_vlan_update(ifp, af_spec); | |
d62a17ae | 918 | |
d62a17ae | 919 | return 0; |
6675513d | 920 | } |
921 | ||
ed7a1622 | 922 | static bool is_if_protodown_reason_only_frr(uint32_t rc_bitfield) |
0dcd8506 SW |
923 | { |
924 | /* This shouldn't be possible */ | |
925 | assert(frr_protodown_r_bit < 32); | |
926 | return (rc_bitfield == (((uint32_t)1) << frr_protodown_r_bit)); | |
927 | } | |
928 | ||
929 | /* | |
930 | * Process interface protodown dplane update. | |
931 | * | |
932 | * If the interface is an es bond member then it must follow EVPN's | |
933 | * protodown setting. | |
c36e442c AK |
934 | */ |
935 | static void netlink_proc_dplane_if_protodown(struct zebra_if *zif, | |
0dcd8506 | 936 | struct rtattr **tb) |
c36e442c | 937 | { |
0dcd8506 SW |
938 | bool protodown; |
939 | bool old_protodown; | |
940 | uint32_t rc_bitfield = 0; | |
941 | struct rtattr *pd_reason_info[IFLA_MAX + 1]; | |
c36e442c | 942 | |
0dcd8506 SW |
943 | protodown = !!*(uint8_t *)RTA_DATA(tb[IFLA_PROTO_DOWN]); |
944 | ||
945 | if (tb[IFLA_PROTO_DOWN_REASON]) { | |
946 | netlink_parse_rtattr_nested(pd_reason_info, IFLA_INFO_MAX, | |
947 | tb[IFLA_PROTO_DOWN_REASON]); | |
c36e442c | 948 | |
0dcd8506 SW |
949 | if (pd_reason_info[IFLA_PROTO_DOWN_REASON_VALUE]) |
950 | rc_bitfield = *(uint32_t *)RTA_DATA( | |
951 | pd_reason_info[IFLA_PROTO_DOWN_REASON_VALUE]); | |
952 | } | |
953 | ||
954 | /* | |
955 | * Set our reason code to note it wasn't us. | |
956 | * If the reason we got from the kernel is ONLY frr though, don't | |
957 | * set it. | |
958 | */ | |
7140b00c SW |
959 | COND_FLAG(zif->protodown_rc, ZEBRA_PROTODOWN_EXTERNAL, |
960 | protodown && rc_bitfield && | |
961 | !is_if_protodown_reason_only_frr(rc_bitfield)); | |
962 | ||
5d414138 | 963 | |
d89b3008 | 964 | old_protodown = !!ZEBRA_IF_IS_PROTODOWN(zif); |
0dcd8506 | 965 | if (protodown == old_protodown) |
c36e442c AK |
966 | return; |
967 | ||
968 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES || IS_ZEBRA_DEBUG_KERNEL) | |
969 | zlog_debug("interface %s dplane change, protdown %s", | |
970 | zif->ifp->name, protodown ? "on" : "off"); | |
971 | ||
7140b00c SW |
972 | /* Set protodown, respectively */ |
973 | COND_FLAG(zif->flags, ZIF_FLAG_PROTODOWN, protodown); | |
0dcd8506 | 974 | |
c36e442c | 975 | if (zebra_evpn_is_es_bond_member(zif->ifp)) { |
4b82b954 | 976 | /* Check it's not already being sent to the dplane first */ |
47c1d76a SW |
977 | if (protodown && |
978 | CHECK_FLAG(zif->flags, ZIF_FLAG_SET_PROTODOWN)) { | |
979 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES || IS_ZEBRA_DEBUG_KERNEL) | |
980 | zlog_debug( | |
981 | "bond mbr %s protodown on recv'd but already sent protodown on to the dplane", | |
982 | zif->ifp->name); | |
4b82b954 | 983 | return; |
47c1d76a | 984 | } |
4b82b954 | 985 | |
47c1d76a SW |
986 | if (!protodown && |
987 | CHECK_FLAG(zif->flags, ZIF_FLAG_UNSET_PROTODOWN)) { | |
988 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES || IS_ZEBRA_DEBUG_KERNEL) | |
989 | zlog_debug( | |
990 | "bond mbr %s protodown off recv'd but already sent protodown off to the dplane", | |
991 | zif->ifp->name); | |
4b82b954 | 992 | return; |
47c1d76a | 993 | } |
4b82b954 | 994 | |
c36e442c AK |
995 | if (IS_ZEBRA_DEBUG_EVPN_MH_ES || IS_ZEBRA_DEBUG_KERNEL) |
996 | zlog_debug( | |
47c1d76a | 997 | "bond mbr %s reinstate protodown %s in the dplane", |
0dcd8506 SW |
998 | zif->ifp->name, old_protodown ? "on" : "off"); |
999 | ||
1000 | if (old_protodown) | |
7140b00c | 1001 | SET_FLAG(zif->flags, ZIF_FLAG_SET_PROTODOWN); |
c36e442c | 1002 | else |
7140b00c | 1003 | SET_FLAG(zif->flags, ZIF_FLAG_UNSET_PROTODOWN); |
0dcd8506 SW |
1004 | |
1005 | dplane_intf_update(zif->ifp); | |
c36e442c AK |
1006 | } |
1007 | } | |
1008 | ||
00a7710c AK |
1009 | static uint8_t netlink_parse_lacp_bypass(struct rtattr **linkinfo) |
1010 | { | |
1011 | uint8_t bypass = 0; | |
1012 | struct rtattr *mbrinfo[IFLA_BOND_SLAVE_MAX + 1]; | |
1013 | ||
c9d842c7 DS |
1014 | netlink_parse_rtattr_nested(mbrinfo, IFLA_BOND_SLAVE_MAX, |
1015 | linkinfo[IFLA_INFO_SLAVE_DATA]); | |
00a7710c AK |
1016 | if (mbrinfo[IFLA_BOND_SLAVE_AD_RX_BYPASS]) |
1017 | bypass = *(uint8_t *)RTA_DATA( | |
1018 | mbrinfo[IFLA_BOND_SLAVE_AD_RX_BYPASS]); | |
1019 | ||
1020 | return bypass; | |
1021 | } | |
1022 | ||
0dcd8506 | 1023 | /* |
ab465d24 SW |
1024 | * Only called at startup to cleanup leftover protodown reasons we may |
1025 | * have not cleaned up. We leave protodown set though. | |
0dcd8506 SW |
1026 | */ |
1027 | static void if_sweep_protodown(struct zebra_if *zif) | |
1028 | { | |
1029 | bool protodown; | |
1030 | ||
d89b3008 | 1031 | protodown = !!ZEBRA_IF_IS_PROTODOWN(zif); |
0dcd8506 SW |
1032 | |
1033 | if (!protodown) | |
1034 | return; | |
1035 | ||
1036 | if (IS_ZEBRA_DEBUG_KERNEL) | |
ab465d24 SW |
1037 | zlog_debug("interface %s sweeping protodown %s reason 0x%x", |
1038 | zif->ifp->name, protodown ? "on" : "off", | |
1039 | zif->protodown_rc); | |
0dcd8506 SW |
1040 | |
1041 | /* Only clear our reason codes, leave external if it was set */ | |
7140b00c | 1042 | UNSET_FLAG(zif->protodown_rc, ZEBRA_PROTODOWN_ALL); |
0dcd8506 SW |
1043 | dplane_intf_update(zif->ifp); |
1044 | } | |
1045 | ||
2414abd3 DS |
1046 | /* |
1047 | * Called from interface_lookup_netlink(). This function is only used | |
1048 | * during bootstrap. | |
1049 | */ | |
1050 | static int netlink_interface(struct nlmsghdr *h, ns_id_t ns_id, int startup) | |
1fdc9eae | 1051 | { |
d62a17ae | 1052 | int len; |
1053 | struct ifinfomsg *ifi; | |
1054 | struct rtattr *tb[IFLA_MAX + 1]; | |
1055 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1056 | struct interface *ifp; | |
1057 | char *name = NULL; | |
1058 | char *kind = NULL; | |
48884c6b | 1059 | char *desc = NULL; |
d62a17ae | 1060 | char *slave_kind = NULL; |
ea7ec261 | 1061 | struct zebra_ns *zns = NULL; |
d62a17ae | 1062 | vrf_id_t vrf_id = VRF_DEFAULT; |
e6f2bec0 | 1063 | enum zebra_iftype zif_type = ZEBRA_IF_OTHER; |
a81982fa | 1064 | enum zebra_slave_iftype zif_slave_type = ZEBRA_IF_SLAVE_NONE; |
d62a17ae | 1065 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; |
1066 | ifindex_t link_ifindex = IFINDEX_INTERNAL; | |
b9368db9 | 1067 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
520ebf72 | 1068 | struct zebra_if *zif; |
14ddb3d9 | 1069 | ns_id_t link_nsid = ns_id; |
00a7710c | 1070 | uint8_t bypass = 0; |
d62a17ae | 1071 | |
d42e6142 DS |
1072 | frrtrace(3, frr_zebra, netlink_interface, h, ns_id, startup); |
1073 | ||
d62a17ae | 1074 | zns = zebra_ns_lookup(ns_id); |
1075 | ifi = NLMSG_DATA(h); | |
1076 | ||
1077 | if (h->nlmsg_type != RTM_NEWLINK) | |
1078 | return 0; | |
1079 | ||
1080 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
9bdf8618 | 1081 | if (len < 0) { |
15569c58 DA |
1082 | zlog_err( |
1083 | "%s: Message received from netlink is of a broken size: %d %zu", | |
1084 | __func__, h->nlmsg_len, | |
1085 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 1086 | return -1; |
9bdf8618 | 1087 | } |
d62a17ae | 1088 | |
1089 | /* We are interested in some AF_BRIDGE notifications. */ | |
1090 | if (ifi->ifi_family == AF_BRIDGE) | |
1091 | return netlink_bridge_interface(h, len, ns_id, startup); | |
1092 | ||
1093 | /* Looking up interface name. */ | |
0d6f7fd6 | 1094 | memset(linkinfo, 0, sizeof(linkinfo)); |
0dcd8506 SW |
1095 | netlink_parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(ifi), len, |
1096 | NLA_F_NESTED); | |
1fdc9eae | 1097 | |
d62a17ae | 1098 | /* check for wireless messages to ignore */ |
1099 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
1100 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1101 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
1102 | __func__); | |
1103 | return 0; | |
1104 | } | |
1fdc9eae | 1105 | |
d62a17ae | 1106 | if (tb[IFLA_IFNAME] == NULL) |
1107 | return -1; | |
1108 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 1109 | |
48884c6b DS |
1110 | if (tb[IFLA_IFALIAS]) |
1111 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
1112 | ||
d62a17ae | 1113 | if (tb[IFLA_LINKINFO]) { |
c9d842c7 DS |
1114 | netlink_parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, |
1115 | tb[IFLA_LINKINFO]); | |
1fdc9eae | 1116 | |
d62a17ae | 1117 | if (linkinfo[IFLA_INFO_KIND]) |
1118 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 1119 | |
d62a17ae | 1120 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
1121 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 1122 | |
b9368db9 DD |
1123 | if ((slave_kind != NULL) && strcmp(slave_kind, "bond") == 0) |
1124 | netlink_determine_zebra_iftype("bond_slave", &zif_type); | |
1125 | else | |
1126 | netlink_determine_zebra_iftype(kind, &zif_type); | |
d62a17ae | 1127 | } |
1128 | ||
1129 | /* If VRF, create the VRF structure itself. */ | |
78dd30b2 | 1130 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { |
5e031198 | 1131 | netlink_vrf_change(h, tb[IFLA_LINKINFO], ns_id, name); |
d62a17ae | 1132 | vrf_id = (vrf_id_t)ifi->ifi_index; |
1133 | } | |
1134 | ||
1135 | if (tb[IFLA_MASTER]) { | |
78dd30b2 PG |
1136 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
1137 | && !vrf_is_backend_netns()) { | |
d62a17ae | 1138 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
d7c0a89a | 1139 | vrf_id = *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); |
d62a17ae | 1140 | } else if (slave_kind && (strcmp(slave_kind, "bridge") == 0)) { |
1141 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
1142 | bridge_ifindex = | |
1143 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
b9368db9 DD |
1144 | } else if (slave_kind && (strcmp(slave_kind, "bond") == 0)) { |
1145 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
1146 | bond_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); | |
00a7710c | 1147 | bypass = netlink_parse_lacp_bypass(linkinfo); |
d62a17ae | 1148 | } else |
1149 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
1150 | } | |
78dd30b2 PG |
1151 | if (vrf_is_backend_netns()) |
1152 | vrf_id = (vrf_id_t)ns_id; | |
a36898e7 | 1153 | |
d62a17ae | 1154 | /* If linking to another interface, note it. */ |
1155 | if (tb[IFLA_LINK]) | |
1156 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1157 | ||
b1cc23b2 | 1158 | if (tb[IFLA_LINK_NETNSID]) { |
14ddb3d9 | 1159 | link_nsid = *(ns_id_t *)RTA_DATA(tb[IFLA_LINK_NETNSID]); |
b1cc23b2 PG |
1160 | link_nsid = ns_id_get_absolute(ns_id, link_nsid); |
1161 | } | |
14ddb3d9 | 1162 | |
f60a1188 | 1163 | ifp = if_get_by_name(name, vrf_id, NULL); |
ea7ec261 | 1164 | set_ifindex(ifp, ifi->ifi_index, zns); /* add it to ns struct */ |
d5c65bf1 | 1165 | |
d62a17ae | 1166 | ifp->flags = ifi->ifi_flags & 0x0000fffff; |
d62a17ae | 1167 | ifp->mtu6 = ifp->mtu = *(uint32_t *)RTA_DATA(tb[IFLA_MTU]); |
1168 | ifp->metric = 0; | |
594c2878 | 1169 | ifp->speed = get_iflink_speed(ifp, NULL); |
d62a17ae | 1170 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; |
1171 | ||
1172 | /* Set zebra interface type */ | |
1173 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
1174 | if (IS_ZEBRA_IF_VRF(ifp)) |
1175 | SET_FLAG(ifp->status, ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 1176 | |
98efddf1 DS |
1177 | /* |
1178 | * Just set the @link/lower-device ifindex. During nldump interfaces are | |
520ebf72 AK |
1179 | * not ordered in any fashion so we may end up getting upper devices |
1180 | * before lower devices. We will setup the real linkage once the dump | |
98efddf1 DS |
1181 | * is complete. |
1182 | */ | |
520ebf72 AK |
1183 | zif = (struct zebra_if *)ifp->info; |
1184 | zif->link_ifindex = link_ifindex; | |
d62a17ae | 1185 | |
ba5165ec | 1186 | if (desc) { |
c0ce4875 MS |
1187 | XFREE(MTYPE_ZIF_DESC, zif->desc); |
1188 | zif->desc = XSTRDUP(MTYPE_ZIF_DESC, desc); | |
ba5165ec DS |
1189 | } |
1190 | ||
d62a17ae | 1191 | /* Hardware type and address. */ |
1192 | ifp->ll_type = netlink_to_zebra_link_type(ifi->ifi_type); | |
ebb61fca | 1193 | |
d62a17ae | 1194 | netlink_interface_update_hw_addr(tb, ifp); |
1195 | ||
1196 | if_add_update(ifp); | |
1197 | ||
1198 | /* Extract and save L2 interface information, take additional actions. | |
1199 | */ | |
14ddb3d9 PG |
1200 | netlink_interface_update_l2info(ifp, linkinfo[IFLA_INFO_DATA], |
1201 | 1, link_nsid); | |
c36e442c AK |
1202 | if (IS_ZEBRA_IF_BOND(ifp)) |
1203 | zebra_l2if_update_bond(ifp, true); | |
d62a17ae | 1204 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) |
c7620108 PG |
1205 | zebra_l2if_update_bridge_slave(ifp, bridge_ifindex, ns_id, |
1206 | ZEBRA_BRIDGE_NO_ACTION); | |
b9368db9 | 1207 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
00a7710c | 1208 | zebra_l2if_update_bond_slave(ifp, bond_ifindex, !!bypass); |
d62a17ae | 1209 | |
c36e442c | 1210 | if (tb[IFLA_PROTO_DOWN]) { |
0dcd8506 SW |
1211 | netlink_proc_dplane_if_protodown(zif, tb); |
1212 | if_sweep_protodown(zif); | |
c36e442c AK |
1213 | } |
1214 | ||
d62a17ae | 1215 | return 0; |
1fdc9eae | 1216 | } |
1217 | ||
289602d7 | 1218 | /* Request for specific interface or address information from the kernel */ |
85a75f1e MS |
1219 | static int netlink_request_intf_addr(struct nlsock *netlink_cmd, int family, |
1220 | int type, uint32_t filter_mask) | |
289602d7 | 1221 | { |
d62a17ae | 1222 | struct { |
1223 | struct nlmsghdr n; | |
1224 | struct ifinfomsg ifm; | |
1225 | char buf[256]; | |
1226 | } req; | |
1227 | ||
097ef2af DS |
1228 | frrtrace(4, frr_zebra, netlink_request_intf_addr, netlink_cmd, family, |
1229 | type, filter_mask); | |
1230 | ||
d62a17ae | 1231 | /* Form the request, specifying filter (rtattr) if needed. */ |
1232 | memset(&req, 0, sizeof(req)); | |
1233 | req.n.nlmsg_type = type; | |
718f9b0f | 1234 | req.n.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; |
d62a17ae | 1235 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
1236 | req.ifm.ifi_family = family; | |
1237 | ||
1238 | /* Include filter, if specified. */ | |
1239 | if (filter_mask) | |
312a6bee | 1240 | nl_attr_put32(&req.n, sizeof(req), IFLA_EXT_MASK, filter_mask); |
d62a17ae | 1241 | |
fd3f8e52 | 1242 | return netlink_request(netlink_cmd, &req); |
289602d7 | 1243 | } |
1244 | ||
62b4b7e4 PG |
1245 | enum netlink_msg_status |
1246 | netlink_put_gre_set_msg(struct nl_batch *bth, struct zebra_dplane_ctx *ctx) | |
1247 | { | |
1248 | enum dplane_op_e op; | |
1249 | enum netlink_msg_status ret; | |
1250 | ||
1251 | op = dplane_ctx_get_op(ctx); | |
1252 | assert(op == DPLANE_OP_GRE_SET); | |
1253 | ||
1254 | ret = netlink_batch_add_msg(bth, ctx, netlink_gre_set_msg_encoder, false); | |
1255 | ||
1256 | return ret; | |
1257 | } | |
1258 | ||
1fdc9eae | 1259 | /* Interface lookup by netlink socket. */ |
d62a17ae | 1260 | int interface_lookup_netlink(struct zebra_ns *zns) |
1fdc9eae | 1261 | { |
d62a17ae | 1262 | int ret; |
85a75f1e MS |
1263 | struct zebra_dplane_info dp_info; |
1264 | struct nlsock *netlink_cmd = &zns->netlink_cmd; | |
1265 | ||
1266 | /* Capture key info from ns struct */ | |
1267 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
d62a17ae | 1268 | |
1269 | /* Get interface information. */ | |
85a75f1e | 1270 | ret = netlink_request_intf_addr(netlink_cmd, AF_PACKET, RTM_GETLINK, 0); |
d62a17ae | 1271 | if (ret < 0) |
1272 | return ret; | |
85a75f1e | 1273 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
9bfadae8 | 1274 | true); |
d62a17ae | 1275 | if (ret < 0) |
1276 | return ret; | |
1277 | ||
1278 | /* Get interface information - for bridge interfaces. */ | |
85a75f1e | 1279 | ret = netlink_request_intf_addr(netlink_cmd, AF_BRIDGE, RTM_GETLINK, |
d62a17ae | 1280 | RTEXT_FILTER_BRVLAN); |
1281 | if (ret < 0) | |
1282 | return ret; | |
85a75f1e | 1283 | ret = netlink_parse_info(netlink_interface, netlink_cmd, &dp_info, 0, |
9bfadae8 | 1284 | true); |
d62a17ae | 1285 | if (ret < 0) |
1286 | return ret; | |
1287 | ||
451165eb DS |
1288 | /* |
1289 | * So netlink_tunneldump_read will initiate a request | |
1290 | * per tunnel to get data. If we are on a kernel that | |
1291 | * does not support this then we will get X error messages | |
1292 | * (one per tunnel request )back which netlink_parse_info will | |
1293 | * stop after the first one. So we need to read equivalent | |
1294 | * error messages per tunnel then we can continue. | |
1295 | * if we do not gather all the read failures then | |
1296 | * later requests will not work right. | |
1297 | */ | |
acc8e687 CS |
1298 | ret = netlink_tunneldump_read(zns); |
1299 | if (ret < 0) | |
1300 | return ret; | |
acc8e687 | 1301 | |
520ebf72 | 1302 | /* fixup linkages */ |
357b150d | 1303 | zebra_if_update_all_links(zns); |
d2bec88a SW |
1304 | return 0; |
1305 | } | |
1306 | ||
1307 | /** | |
1308 | * interface_addr_lookup_netlink() - Look up interface addresses | |
1309 | * | |
1310 | * @zns: Zebra netlink socket | |
1311 | * Return: Result status | |
1312 | */ | |
1313 | static int interface_addr_lookup_netlink(struct zebra_ns *zns) | |
1314 | { | |
1315 | int ret; | |
1316 | struct zebra_dplane_info dp_info; | |
1317 | struct nlsock *netlink_cmd = &zns->netlink_cmd; | |
1318 | ||
1319 | /* Capture key info from ns struct */ | |
1320 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
520ebf72 | 1321 | |
d62a17ae | 1322 | /* Get IPv4 address of the interfaces. */ |
85a75f1e | 1323 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET, RTM_GETADDR, 0); |
d62a17ae | 1324 | if (ret < 0) |
1325 | return ret; | |
85a75f1e | 1326 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
9bfadae8 | 1327 | 0, true); |
d62a17ae | 1328 | if (ret < 0) |
1329 | return ret; | |
1330 | ||
1331 | /* Get IPv6 address of the interfaces. */ | |
85a75f1e | 1332 | ret = netlink_request_intf_addr(netlink_cmd, AF_INET6, RTM_GETADDR, 0); |
d62a17ae | 1333 | if (ret < 0) |
1334 | return ret; | |
85a75f1e | 1335 | ret = netlink_parse_info(netlink_interface_addr, netlink_cmd, &dp_info, |
9bfadae8 | 1336 | 0, true); |
d62a17ae | 1337 | if (ret < 0) |
1338 | return ret; | |
1339 | ||
1340 | return 0; | |
1fdc9eae | 1341 | } |
1342 | ||
e0ae31b8 DS |
1343 | int kernel_interface_set_master(struct interface *master, |
1344 | struct interface *slave) | |
1345 | { | |
1346 | struct zebra_ns *zns = zebra_ns_lookup(NS_DEFAULT); | |
1347 | ||
1348 | struct { | |
1349 | struct nlmsghdr n; | |
1350 | struct ifinfomsg ifa; | |
1351 | char buf[NL_PKT_BUF_SIZE]; | |
1352 | } req; | |
1353 | ||
0d6f7fd6 | 1354 | memset(&req, 0, sizeof(req)); |
e0ae31b8 DS |
1355 | |
1356 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); | |
1357 | req.n.nlmsg_flags = NLM_F_REQUEST; | |
1358 | req.n.nlmsg_type = RTM_SETLINK; | |
1359 | req.n.nlmsg_pid = zns->netlink_cmd.snl.nl_pid; | |
1360 | ||
1361 | req.ifa.ifi_index = slave->ifindex; | |
1362 | ||
a757997c JU |
1363 | nl_attr_put32(&req.n, sizeof(req), IFLA_MASTER, master->ifindex); |
1364 | nl_attr_put32(&req.n, sizeof(req), IFLA_LINK, slave->ifindex); | |
e0ae31b8 DS |
1365 | |
1366 | return netlink_talk(netlink_talk_filter, &req.n, &zns->netlink_cmd, zns, | |
9bfadae8 | 1367 | false); |
e0ae31b8 DS |
1368 | } |
1369 | ||
1fdc9eae | 1370 | /* Interface address modification. */ |
67e3369e JU |
1371 | static ssize_t netlink_address_msg_encoder(struct zebra_dplane_ctx *ctx, |
1372 | void *buf, size_t buflen) | |
1fdc9eae | 1373 | { |
d62a17ae | 1374 | int bytelen; |
64168803 MS |
1375 | const struct prefix *p; |
1376 | int cmd; | |
1377 | const char *label; | |
1fdc9eae | 1378 | |
d62a17ae | 1379 | struct { |
1380 | struct nlmsghdr n; | |
1381 | struct ifaddrmsg ifa; | |
67e3369e JU |
1382 | char buf[0]; |
1383 | } *req = buf; | |
1384 | ||
1385 | if (buflen < sizeof(*req)) | |
1386 | return 0; | |
1fdc9eae | 1387 | |
64168803 | 1388 | p = dplane_ctx_get_intf_addr(ctx); |
67e3369e | 1389 | memset(req, 0, sizeof(*req)); |
1fdc9eae | 1390 | |
64168803 | 1391 | bytelen = (p->family == AF_INET ? 4 : 16); |
1fdc9eae | 1392 | |
67e3369e JU |
1393 | req->n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg)); |
1394 | req->n.nlmsg_flags = NLM_F_REQUEST; | |
a55ba23f | 1395 | |
64168803 MS |
1396 | if (dplane_ctx_get_op(ctx) == DPLANE_OP_ADDR_INSTALL) |
1397 | cmd = RTM_NEWADDR; | |
1398 | else | |
1399 | cmd = RTM_DELADDR; | |
1400 | ||
67e3369e JU |
1401 | req->n.nlmsg_type = cmd; |
1402 | req->ifa.ifa_family = p->family; | |
1fdc9eae | 1403 | |
67e3369e | 1404 | req->ifa.ifa_index = dplane_ctx_get_ifindex(ctx); |
1fdc9eae | 1405 | |
67e3369e JU |
1406 | if (!nl_attr_put(&req->n, buflen, IFA_LOCAL, &p->u.prefix, bytelen)) |
1407 | return 0; | |
1fdc9eae | 1408 | |
64168803 MS |
1409 | if (p->family == AF_INET) { |
1410 | if (dplane_ctx_intf_is_connected(ctx)) { | |
1411 | p = dplane_ctx_get_intf_dest(ctx); | |
67e3369e JU |
1412 | if (!nl_attr_put(&req->n, buflen, IFA_ADDRESS, |
1413 | &p->u.prefix, bytelen)) | |
1414 | return 0; | |
0f3af738 JW |
1415 | } else if (cmd == RTM_NEWADDR) { |
1416 | struct in_addr broad = { | |
1417 | .s_addr = ipv4_broadcast_addr(p->u.prefix4.s_addr, | |
1418 | p->prefixlen) | |
1419 | }; | |
67e3369e JU |
1420 | if (!nl_attr_put(&req->n, buflen, IFA_BROADCAST, &broad, |
1421 | bytelen)) | |
1422 | return 0; | |
d62a17ae | 1423 | } |
1424 | } | |
1fdc9eae | 1425 | |
64168803 | 1426 | /* p is now either address or destination/bcast addr */ |
67e3369e | 1427 | req->ifa.ifa_prefixlen = p->prefixlen; |
e8d19a05 | 1428 | |
64168803 | 1429 | if (dplane_ctx_intf_is_secondary(ctx)) |
67e3369e | 1430 | SET_FLAG(req->ifa.ifa_flags, IFA_F_SECONDARY); |
1fdc9eae | 1431 | |
64168803 MS |
1432 | if (dplane_ctx_intf_has_label(ctx)) { |
1433 | label = dplane_ctx_get_intf_label(ctx); | |
67e3369e JU |
1434 | if (!nl_attr_put(&req->n, buflen, IFA_LABEL, label, |
1435 | strlen(label) + 1)) | |
1436 | return 0; | |
64168803 | 1437 | } |
1fdc9eae | 1438 | |
67e3369e | 1439 | return NLMSG_ALIGN(req->n.nlmsg_len); |
e86b71f1 PG |
1440 | } |
1441 | ||
67e3369e JU |
1442 | enum netlink_msg_status |
1443 | netlink_put_address_update_msg(struct nl_batch *bth, | |
1444 | struct zebra_dplane_ctx *ctx) | |
1445 | { | |
1446 | return netlink_batch_add_msg(bth, ctx, netlink_address_msg_encoder, | |
1447 | false); | |
e86b71f1 PG |
1448 | } |
1449 | ||
5d414138 SW |
1450 | static ssize_t netlink_intf_msg_encoder(struct zebra_dplane_ctx *ctx, void *buf, |
1451 | size_t buflen) | |
1452 | { | |
1453 | enum dplane_op_e op; | |
1454 | int cmd = 0; | |
1455 | ||
1456 | op = dplane_ctx_get_op(ctx); | |
1457 | ||
1458 | switch (op) { | |
1459 | case DPLANE_OP_INTF_UPDATE: | |
1460 | cmd = RTM_SETLINK; | |
1461 | break; | |
1462 | case DPLANE_OP_INTF_INSTALL: | |
1463 | cmd = RTM_NEWLINK; | |
1464 | break; | |
1465 | case DPLANE_OP_INTF_DELETE: | |
1466 | cmd = RTM_DELLINK; | |
1467 | break; | |
a98701f0 DS |
1468 | case DPLANE_OP_NONE: |
1469 | case DPLANE_OP_ROUTE_INSTALL: | |
1470 | case DPLANE_OP_ROUTE_UPDATE: | |
1471 | case DPLANE_OP_ROUTE_DELETE: | |
1472 | case DPLANE_OP_ROUTE_NOTIFY: | |
1473 | case DPLANE_OP_NH_INSTALL: | |
1474 | case DPLANE_OP_NH_UPDATE: | |
1475 | case DPLANE_OP_NH_DELETE: | |
1476 | case DPLANE_OP_LSP_INSTALL: | |
1477 | case DPLANE_OP_LSP_DELETE: | |
1478 | case DPLANE_OP_LSP_NOTIFY: | |
1479 | case DPLANE_OP_LSP_UPDATE: | |
1480 | case DPLANE_OP_PW_INSTALL: | |
1481 | case DPLANE_OP_PW_UNINSTALL: | |
1482 | case DPLANE_OP_SYS_ROUTE_ADD: | |
1483 | case DPLANE_OP_SYS_ROUTE_DELETE: | |
1484 | case DPLANE_OP_ADDR_INSTALL: | |
1485 | case DPLANE_OP_ADDR_UNINSTALL: | |
1486 | case DPLANE_OP_MAC_INSTALL: | |
1487 | case DPLANE_OP_MAC_DELETE: | |
1488 | case DPLANE_OP_NEIGH_INSTALL: | |
1489 | case DPLANE_OP_NEIGH_UPDATE: | |
1490 | case DPLANE_OP_NEIGH_DELETE: | |
1491 | case DPLANE_OP_NEIGH_DISCOVER: | |
1492 | case DPLANE_OP_VTEP_ADD: | |
1493 | case DPLANE_OP_VTEP_DELETE: | |
1494 | case DPLANE_OP_RULE_ADD: | |
1495 | case DPLANE_OP_RULE_DELETE: | |
1496 | case DPLANE_OP_RULE_UPDATE: | |
1497 | case DPLANE_OP_BR_PORT_UPDATE: | |
1498 | case DPLANE_OP_IPTABLE_ADD: | |
1499 | case DPLANE_OP_IPTABLE_DELETE: | |
1500 | case DPLANE_OP_IPSET_ADD: | |
1501 | case DPLANE_OP_IPSET_ENTRY_ADD: | |
1502 | case DPLANE_OP_IPSET_ENTRY_DELETE: | |
1503 | case DPLANE_OP_IPSET_DELETE: | |
1504 | case DPLANE_OP_NEIGH_IP_INSTALL: | |
1505 | case DPLANE_OP_NEIGH_IP_DELETE: | |
1506 | case DPLANE_OP_NEIGH_TABLE_UPDATE: | |
1507 | case DPLANE_OP_GRE_SET: | |
1508 | case DPLANE_OP_INTF_ADDR_ADD: | |
1509 | case DPLANE_OP_INTF_ADDR_DEL: | |
1510 | case DPLANE_OP_INTF_NETCONFIG: | |
1511 | case DPLANE_OP_TC_QDISC_INSTALL: | |
1512 | case DPLANE_OP_TC_QDISC_UNINSTALL: | |
1513 | case DPLANE_OP_TC_CLASS_ADD: | |
1514 | case DPLANE_OP_TC_CLASS_DELETE: | |
1515 | case DPLANE_OP_TC_CLASS_UPDATE: | |
1516 | case DPLANE_OP_TC_FILTER_ADD: | |
1517 | case DPLANE_OP_TC_FILTER_DELETE: | |
1518 | case DPLANE_OP_TC_FILTER_UPDATE: | |
5d414138 SW |
1519 | flog_err( |
1520 | EC_ZEBRA_NHG_FIB_UPDATE, | |
1521 | "Context received for kernel interface update with incorrect OP code (%u)", | |
1522 | op); | |
1523 | return -1; | |
1524 | } | |
1525 | ||
1526 | return netlink_intf_msg_encode(cmd, ctx, buf, buflen); | |
1527 | } | |
1528 | ||
1529 | enum netlink_msg_status | |
1530 | netlink_put_intf_update_msg(struct nl_batch *bth, struct zebra_dplane_ctx *ctx) | |
1531 | { | |
1532 | return netlink_batch_add_msg(bth, ctx, netlink_intf_msg_encoder, false); | |
1533 | } | |
1534 | ||
2414abd3 | 1535 | int netlink_interface_addr(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1536 | { |
d62a17ae | 1537 | int len; |
1538 | struct ifaddrmsg *ifa; | |
1539 | struct rtattr *tb[IFA_MAX + 1]; | |
1540 | struct interface *ifp; | |
1541 | void *addr; | |
1542 | void *broad; | |
d7c0a89a | 1543 | uint8_t flags = 0; |
d62a17ae | 1544 | char *label = NULL; |
1545 | struct zebra_ns *zns; | |
cde1af84 | 1546 | uint32_t metric = METRIC_MAX; |
9254efed | 1547 | uint32_t kernel_flags = 0; |
d62a17ae | 1548 | |
14ed0615 DS |
1549 | frrtrace(3, frr_zebra, netlink_interface_addr, h, ns_id, startup); |
1550 | ||
d62a17ae | 1551 | zns = zebra_ns_lookup(ns_id); |
1552 | ifa = NLMSG_DATA(h); | |
1553 | ||
8a1b681c | 1554 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { |
9df414fe | 1555 | flog_warn( |
e914ccbe | 1556 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
1557 | "Invalid address family: %u received from kernel interface addr change: %s", |
1558 | ifa->ifa_family, nl_msg_type_to_str(h->nlmsg_type)); | |
d62a17ae | 1559 | return 0; |
8a1b681c | 1560 | } |
d62a17ae | 1561 | |
1562 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
1563 | return 0; | |
1564 | ||
1565 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
9bdf8618 | 1566 | if (len < 0) { |
15569c58 DA |
1567 | zlog_err( |
1568 | "%s: Message received from netlink is of a broken size: %d %zu", | |
1569 | __func__, h->nlmsg_len, | |
1570 | (size_t)NLMSG_LENGTH(sizeof(struct ifaddrmsg))); | |
d62a17ae | 1571 | return -1; |
9bdf8618 | 1572 | } |
d62a17ae | 1573 | |
d62a17ae | 1574 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); |
1575 | ||
1576 | ifp = if_lookup_by_index_per_ns(zns, ifa->ifa_index); | |
1577 | if (ifp == NULL) { | |
8eec31ef YY |
1578 | if (startup) { |
1579 | /* During startup, failure to lookup the referenced | |
1580 | * interface should not be an error, so we have | |
1581 | * downgraded this condition to warning, and we permit | |
1582 | * the startup interface state retrieval to continue. | |
1583 | */ | |
1584 | flog_warn(EC_LIB_INTERFACE, | |
1585 | "%s: can't find interface by index %d", | |
1586 | __func__, ifa->ifa_index); | |
1587 | return 0; | |
1588 | } else { | |
1589 | flog_err(EC_LIB_INTERFACE, | |
1590 | "%s: can't find interface by index %d", | |
1591 | __func__, ifa->ifa_index); | |
1592 | return -1; | |
1593 | } | |
d62a17ae | 1594 | } |
1595 | ||
9254efed DS |
1596 | /* Flags passed through */ |
1597 | if (tb[IFA_FLAGS]) | |
1598 | kernel_flags = *(int *)RTA_DATA(tb[IFA_FLAGS]); | |
1599 | else | |
1600 | kernel_flags = ifa->ifa_flags; | |
1601 | ||
d62a17ae | 1602 | if (IS_ZEBRA_DEBUG_KERNEL) /* remove this line to see initial ifcfg */ |
1603 | { | |
1604 | char buf[BUFSIZ]; | |
6751c0f3 | 1605 | zlog_debug("%s %s %s flags 0x%x:", __func__, |
d62a17ae | 1606 | nl_msg_type_to_str(h->nlmsg_type), ifp->name, |
9254efed | 1607 | kernel_flags); |
d62a17ae | 1608 | if (tb[IFA_LOCAL]) |
1609 | zlog_debug(" IFA_LOCAL %s/%d", | |
1610 | inet_ntop(ifa->ifa_family, | |
1611 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
1612 | BUFSIZ), | |
1613 | ifa->ifa_prefixlen); | |
1614 | if (tb[IFA_ADDRESS]) | |
1615 | zlog_debug(" IFA_ADDRESS %s/%d", | |
1616 | inet_ntop(ifa->ifa_family, | |
1617 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
1618 | BUFSIZ), | |
1619 | ifa->ifa_prefixlen); | |
1620 | if (tb[IFA_BROADCAST]) | |
1621 | zlog_debug(" IFA_BROADCAST %s/%d", | |
1622 | inet_ntop(ifa->ifa_family, | |
1623 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
1624 | BUFSIZ), | |
1625 | ifa->ifa_prefixlen); | |
1626 | if (tb[IFA_LABEL] && strcmp(ifp->name, RTA_DATA(tb[IFA_LABEL]))) | |
1627 | zlog_debug(" IFA_LABEL %s", | |
1628 | (char *)RTA_DATA(tb[IFA_LABEL])); | |
1629 | ||
1630 | if (tb[IFA_CACHEINFO]) { | |
1631 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
1632 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
1633 | ci->ifa_prefered, ci->ifa_valid); | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
1638 | if (tb[IFA_LOCAL] == NULL) | |
1639 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
1640 | if (tb[IFA_ADDRESS] == NULL) | |
1641 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
1642 | ||
1643 | /* local interface address */ | |
1644 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
1645 | ||
1646 | /* is there a peer address? */ | |
1647 | if (tb[IFA_ADDRESS] | |
1648 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
1649 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
1650 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
1651 | SET_FLAG(flags, ZEBRA_IFA_PEER); | |
1652 | } else | |
1653 | /* seeking a broadcast address */ | |
1654 | broad = (tb[IFA_BROADCAST] ? RTA_DATA(tb[IFA_BROADCAST]) | |
1655 | : NULL); | |
1656 | ||
1657 | /* addr is primary key, SOL if we don't have one */ | |
1658 | if (addr == NULL) { | |
14a4d9d0 | 1659 | zlog_debug("%s: Local Interface Address is NULL for %s", |
1660 | __func__, ifp->name); | |
d62a17ae | 1661 | return -1; |
1662 | } | |
1663 | ||
1664 | /* Flags. */ | |
9254efed | 1665 | if (kernel_flags & IFA_F_SECONDARY) |
d62a17ae | 1666 | SET_FLAG(flags, ZEBRA_IFA_SECONDARY); |
1667 | ||
1668 | /* Label */ | |
1669 | if (tb[IFA_LABEL]) | |
1670 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
1671 | ||
2e1cc436 | 1672 | if (label && strcmp(ifp->name, label) == 0) |
d62a17ae | 1673 | label = NULL; |
1674 | ||
cde1af84 AK |
1675 | if (tb[IFA_RT_PRIORITY]) |
1676 | metric = *(uint32_t *)RTA_DATA(tb[IFA_RT_PRIORITY]); | |
1677 | ||
d62a17ae | 1678 | /* Register interface address to the interface. */ |
1679 | if (ifa->ifa_family == AF_INET) { | |
930571d2 | 1680 | if (ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { |
e17d9b2d | 1681 | zlog_err( |
87b5d1b0 DS |
1682 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1683 | ifa->ifa_prefixlen, | |
1684 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1685 | return -1; |
930571d2 | 1686 | } |
20e879f9 | 1687 | |
d62a17ae | 1688 | if (h->nlmsg_type == RTM_NEWADDR) |
1689 | connected_add_ipv4(ifp, flags, (struct in_addr *)addr, | |
1690 | ifa->ifa_prefixlen, | |
cde1af84 AK |
1691 | (struct in_addr *)broad, label, |
1692 | metric); | |
20e879f9 MS |
1693 | else if (CHECK_FLAG(flags, ZEBRA_IFA_PEER)) { |
1694 | /* Delete with a peer address */ | |
1695 | connected_delete_ipv4( | |
1696 | ifp, flags, (struct in_addr *)addr, | |
1697 | ifa->ifa_prefixlen, broad); | |
1698 | } else | |
d62a17ae | 1699 | connected_delete_ipv4( |
1700 | ifp, flags, (struct in_addr *)addr, | |
fd267f08 | 1701 | ifa->ifa_prefixlen, NULL); |
d62a17ae | 1702 | } |
20e879f9 | 1703 | |
d62a17ae | 1704 | if (ifa->ifa_family == AF_INET6) { |
930571d2 | 1705 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { |
e17d9b2d | 1706 | zlog_err( |
87b5d1b0 DS |
1707 | "Invalid prefix length: %u received from kernel interface addr change: %s", |
1708 | ifa->ifa_prefixlen, | |
1709 | nl_msg_type_to_str(h->nlmsg_type)); | |
e17d9b2d | 1710 | return -1; |
930571d2 | 1711 | } |
d62a17ae | 1712 | if (h->nlmsg_type == RTM_NEWADDR) { |
1713 | /* Only consider valid addresses; we'll not get a | |
1714 | * notification from | |
1715 | * the kernel till IPv6 DAD has completed, but at init | |
1716 | * time, Quagga | |
1717 | * does query for and will receive all addresses. | |
1718 | */ | |
9254efed | 1719 | if (!(kernel_flags |
d62a17ae | 1720 | & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) |
60466a63 QY |
1721 | connected_add_ipv6(ifp, flags, |
1722 | (struct in6_addr *)addr, | |
60c0687a | 1723 | (struct in6_addr *)broad, |
cde1af84 AK |
1724 | ifa->ifa_prefixlen, label, |
1725 | metric); | |
d62a17ae | 1726 | } else |
1727 | connected_delete_ipv6(ifp, (struct in6_addr *)addr, | |
fd267f08 | 1728 | NULL, ifa->ifa_prefixlen); |
d62a17ae | 1729 | } |
1730 | ||
2a181147 SW |
1731 | /* |
1732 | * Linux kernel does not send route delete on interface down/addr del | |
1733 | * so we have to re-process routes it owns (i.e. kernel routes) | |
1734 | */ | |
1735 | if (h->nlmsg_type != RTM_NEWADDR) | |
1736 | rib_update(RIB_UPDATE_KERNEL); | |
1737 | ||
d62a17ae | 1738 | return 0; |
1fdc9eae | 1739 | } |
1740 | ||
e7c2c198 MS |
1741 | /* |
1742 | * Parse and validate an incoming interface address change message, | |
1743 | * generating a dplane context object. | |
1744 | * This runs in the dplane pthread; the context is enqueued to the | |
1745 | * main pthread for processing. | |
1746 | */ | |
1747 | int netlink_interface_addr_dplane(struct nlmsghdr *h, ns_id_t ns_id, | |
1748 | int startup /*ignored*/) | |
1749 | { | |
1750 | int len; | |
1751 | struct ifaddrmsg *ifa; | |
1752 | struct rtattr *tb[IFA_MAX + 1]; | |
1753 | void *addr; | |
1754 | void *broad; | |
1755 | char *label = NULL; | |
1756 | uint32_t metric = METRIC_MAX; | |
1757 | uint32_t kernel_flags = 0; | |
1758 | struct zebra_dplane_ctx *ctx; | |
1759 | struct prefix p; | |
1760 | ||
1761 | ifa = NLMSG_DATA(h); | |
1762 | ||
1763 | /* Validate message types */ | |
1764 | if (h->nlmsg_type != RTM_NEWADDR && h->nlmsg_type != RTM_DELADDR) | |
1765 | return 0; | |
1766 | ||
1767 | if (ifa->ifa_family != AF_INET && ifa->ifa_family != AF_INET6) { | |
1768 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1769 | zlog_debug("%s: %s: Invalid address family: %u", | |
1770 | __func__, nl_msg_type_to_str(h->nlmsg_type), | |
1771 | ifa->ifa_family); | |
1772 | return 0; | |
1773 | } | |
1774 | ||
1775 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifaddrmsg)); | |
1776 | if (len < 0) { | |
1777 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1778 | zlog_debug("%s: %s: netlink msg bad size: %d %zu", | |
1779 | __func__, nl_msg_type_to_str(h->nlmsg_type), | |
1780 | h->nlmsg_len, | |
1781 | (size_t)NLMSG_LENGTH( | |
1782 | sizeof(struct ifaddrmsg))); | |
1783 | return -1; | |
1784 | } | |
1785 | ||
1786 | netlink_parse_rtattr(tb, IFA_MAX, IFA_RTA(ifa), len); | |
1787 | ||
1788 | /* Flags passed through */ | |
1789 | if (tb[IFA_FLAGS]) | |
1790 | kernel_flags = *(int *)RTA_DATA(tb[IFA_FLAGS]); | |
1791 | else | |
1792 | kernel_flags = ifa->ifa_flags; | |
1793 | ||
1794 | if (IS_ZEBRA_DEBUG_KERNEL) { /* remove this line to see initial ifcfg */ | |
1795 | char buf[PREFIX_STRLEN]; | |
1796 | ||
1797 | zlog_debug("%s: %s nsid %u ifindex %u flags 0x%x:", __func__, | |
1798 | nl_msg_type_to_str(h->nlmsg_type), ns_id, | |
1799 | ifa->ifa_index, kernel_flags); | |
1800 | if (tb[IFA_LOCAL]) | |
1801 | zlog_debug(" IFA_LOCAL %s/%d", | |
1802 | inet_ntop(ifa->ifa_family, | |
1803 | RTA_DATA(tb[IFA_LOCAL]), buf, | |
1804 | sizeof(buf)), | |
1805 | ifa->ifa_prefixlen); | |
1806 | if (tb[IFA_ADDRESS]) | |
1807 | zlog_debug(" IFA_ADDRESS %s/%d", | |
1808 | inet_ntop(ifa->ifa_family, | |
1809 | RTA_DATA(tb[IFA_ADDRESS]), buf, | |
1810 | sizeof(buf)), | |
1811 | ifa->ifa_prefixlen); | |
1812 | if (tb[IFA_BROADCAST]) | |
1813 | zlog_debug(" IFA_BROADCAST %s/%d", | |
1814 | inet_ntop(ifa->ifa_family, | |
1815 | RTA_DATA(tb[IFA_BROADCAST]), buf, | |
1816 | sizeof(buf)), | |
1817 | ifa->ifa_prefixlen); | |
1818 | if (tb[IFA_LABEL]) | |
1819 | zlog_debug(" IFA_LABEL %s", | |
1820 | (const char *)RTA_DATA(tb[IFA_LABEL])); | |
1821 | ||
1822 | if (tb[IFA_CACHEINFO]) { | |
1823 | struct ifa_cacheinfo *ci = RTA_DATA(tb[IFA_CACHEINFO]); | |
1824 | ||
1825 | zlog_debug(" IFA_CACHEINFO pref %d, valid %d", | |
1826 | ci->ifa_prefered, ci->ifa_valid); | |
1827 | } | |
1828 | } | |
1829 | ||
1830 | /* Validate prefix length */ | |
1831 | ||
1832 | if (ifa->ifa_family == AF_INET | |
1833 | && ifa->ifa_prefixlen > IPV4_MAX_BITLEN) { | |
1834 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1835 | zlog_debug("%s: %s: Invalid prefix length: %u", | |
1836 | __func__, nl_msg_type_to_str(h->nlmsg_type), | |
1837 | ifa->ifa_prefixlen); | |
1838 | return -1; | |
1839 | } | |
1840 | ||
1841 | if (ifa->ifa_family == AF_INET6) { | |
1842 | if (ifa->ifa_prefixlen > IPV6_MAX_BITLEN) { | |
1843 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1844 | zlog_debug("%s: %s: Invalid prefix length: %u", | |
1845 | __func__, | |
1846 | nl_msg_type_to_str(h->nlmsg_type), | |
1847 | ifa->ifa_prefixlen); | |
1848 | return -1; | |
1849 | } | |
1850 | ||
1851 | /* Only consider valid addresses; we'll not get a kernel | |
1852 | * notification till IPv6 DAD has completed, but at init | |
1853 | * time, FRR does query for and will receive all addresses. | |
1854 | */ | |
1855 | if (h->nlmsg_type == RTM_NEWADDR | |
1856 | && (kernel_flags & (IFA_F_DADFAILED | IFA_F_TENTATIVE))) { | |
1857 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1858 | zlog_debug("%s: %s: Invalid/tentative addr", | |
1859 | __func__, | |
1860 | nl_msg_type_to_str(h->nlmsg_type)); | |
1861 | return 0; | |
1862 | } | |
1863 | } | |
1864 | ||
1865 | /* logic copied from iproute2/ip/ipaddress.c:print_addrinfo() */ | |
1866 | if (tb[IFA_LOCAL] == NULL) | |
1867 | tb[IFA_LOCAL] = tb[IFA_ADDRESS]; | |
1868 | if (tb[IFA_ADDRESS] == NULL) | |
1869 | tb[IFA_ADDRESS] = tb[IFA_LOCAL]; | |
1870 | ||
1871 | /* local interface address */ | |
1872 | addr = (tb[IFA_LOCAL] ? RTA_DATA(tb[IFA_LOCAL]) : NULL); | |
1873 | ||
1874 | /* addr is primary key, SOL if we don't have one */ | |
1875 | if (addr == NULL) { | |
1876 | if (IS_ZEBRA_DEBUG_KERNEL) | |
1877 | zlog_debug("%s: %s: No local interface address", | |
1878 | __func__, nl_msg_type_to_str(h->nlmsg_type)); | |
1879 | return -1; | |
1880 | } | |
1881 | ||
1882 | /* Allocate a context object, now that validation is done. */ | |
1883 | ctx = dplane_ctx_alloc(); | |
1884 | if (h->nlmsg_type == RTM_NEWADDR) | |
1885 | dplane_ctx_set_op(ctx, DPLANE_OP_INTF_ADDR_ADD); | |
1886 | else | |
1887 | dplane_ctx_set_op(ctx, DPLANE_OP_INTF_ADDR_DEL); | |
1888 | ||
1889 | dplane_ctx_set_ifindex(ctx, ifa->ifa_index); | |
1890 | dplane_ctx_set_ns_id(ctx, ns_id); | |
1891 | ||
1892 | /* Convert addr to prefix */ | |
1893 | memset(&p, 0, sizeof(p)); | |
1894 | p.family = ifa->ifa_family; | |
1895 | p.prefixlen = ifa->ifa_prefixlen; | |
1896 | if (p.family == AF_INET) | |
1897 | p.u.prefix4 = *(struct in_addr *)addr; | |
1898 | else | |
1899 | p.u.prefix6 = *(struct in6_addr *)addr; | |
1900 | ||
1901 | dplane_ctx_set_intf_addr(ctx, &p); | |
1902 | ||
1903 | /* is there a peer address? */ | |
1904 | if (tb[IFA_ADDRESS] | |
1905 | && memcmp(RTA_DATA(tb[IFA_ADDRESS]), RTA_DATA(tb[IFA_LOCAL]), | |
1906 | RTA_PAYLOAD(tb[IFA_ADDRESS]))) { | |
1907 | broad = RTA_DATA(tb[IFA_ADDRESS]); | |
1908 | dplane_ctx_intf_set_connected(ctx); | |
1909 | } else if (tb[IFA_BROADCAST]) { | |
1910 | /* seeking a broadcast address */ | |
1911 | broad = RTA_DATA(tb[IFA_BROADCAST]); | |
1912 | dplane_ctx_intf_set_broadcast(ctx); | |
1913 | } else | |
1914 | broad = NULL; | |
1915 | ||
1916 | if (broad) { | |
1917 | /* Convert addr to prefix */ | |
1918 | memset(&p, 0, sizeof(p)); | |
1919 | p.family = ifa->ifa_family; | |
1920 | p.prefixlen = ifa->ifa_prefixlen; | |
1921 | if (p.family == AF_INET) | |
1922 | p.u.prefix4 = *(struct in_addr *)broad; | |
1923 | else | |
1924 | p.u.prefix6 = *(struct in6_addr *)broad; | |
1925 | ||
1926 | dplane_ctx_set_intf_dest(ctx, &p); | |
1927 | } | |
1928 | ||
1929 | /* Flags. */ | |
1930 | if (kernel_flags & IFA_F_SECONDARY) | |
1931 | dplane_ctx_intf_set_secondary(ctx); | |
1932 | ||
1933 | /* Label */ | |
1934 | if (tb[IFA_LABEL]) { | |
1935 | label = (char *)RTA_DATA(tb[IFA_LABEL]); | |
1936 | dplane_ctx_set_intf_label(ctx, label); | |
1937 | } | |
1938 | ||
1939 | if (tb[IFA_RT_PRIORITY]) | |
1940 | metric = *(uint32_t *)RTA_DATA(tb[IFA_RT_PRIORITY]); | |
1941 | ||
1942 | dplane_ctx_set_intf_metric(ctx, metric); | |
1943 | ||
1944 | /* Enqueue ctx for main pthread to process */ | |
1945 | dplane_provider_enqueue_to_zebra(ctx); | |
1946 | ||
1947 | return 0; | |
1948 | } | |
1949 | ||
2414abd3 | 1950 | int netlink_link_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) |
1fdc9eae | 1951 | { |
d62a17ae | 1952 | int len; |
1953 | struct ifinfomsg *ifi; | |
1954 | struct rtattr *tb[IFLA_MAX + 1]; | |
1955 | struct rtattr *linkinfo[IFLA_MAX + 1]; | |
1956 | struct interface *ifp; | |
1957 | char *name = NULL; | |
1958 | char *kind = NULL; | |
48884c6b | 1959 | char *desc = NULL; |
d62a17ae | 1960 | char *slave_kind = NULL; |
1961 | struct zebra_ns *zns; | |
1962 | vrf_id_t vrf_id = VRF_DEFAULT; | |
e6f2bec0 | 1963 | enum zebra_iftype zif_type = ZEBRA_IF_OTHER; |
a81982fa | 1964 | enum zebra_slave_iftype zif_slave_type = ZEBRA_IF_SLAVE_NONE; |
d62a17ae | 1965 | ifindex_t bridge_ifindex = IFINDEX_INTERNAL; |
b9368db9 | 1966 | ifindex_t bond_ifindex = IFINDEX_INTERNAL; |
d62a17ae | 1967 | ifindex_t link_ifindex = IFINDEX_INTERNAL; |
97c4e1d0 | 1968 | uint8_t old_hw_addr[INTERFACE_HWADDR_MAX]; |
ba5165ec | 1969 | struct zebra_if *zif; |
14ddb3d9 | 1970 | ns_id_t link_nsid = ns_id; |
c36e442c | 1971 | ifindex_t master_infindex = IFINDEX_INTERNAL; |
00a7710c | 1972 | uint8_t bypass = 0; |
d62a17ae | 1973 | |
1974 | zns = zebra_ns_lookup(ns_id); | |
1975 | ifi = NLMSG_DATA(h); | |
1976 | ||
fe533c56 | 1977 | /* assume if not default zns, then new VRF */ |
d62a17ae | 1978 | if (!(h->nlmsg_type == RTM_NEWLINK || h->nlmsg_type == RTM_DELLINK)) { |
1979 | /* If this is not link add/delete message so print warning. */ | |
6751c0f3 | 1980 | zlog_debug("%s: wrong kernel message %s", __func__, |
87b5d1b0 | 1981 | nl_msg_type_to_str(h->nlmsg_type)); |
d62a17ae | 1982 | return 0; |
1983 | } | |
1984 | ||
8a1b681c SW |
1985 | if (!(ifi->ifi_family == AF_UNSPEC || ifi->ifi_family == AF_BRIDGE |
1986 | || ifi->ifi_family == AF_INET6)) { | |
9df414fe | 1987 | flog_warn( |
e914ccbe | 1988 | EC_ZEBRA_UNKNOWN_FAMILY, |
87b5d1b0 DS |
1989 | "Invalid address family: %u received from kernel link change: %s", |
1990 | ifi->ifi_family, nl_msg_type_to_str(h->nlmsg_type)); | |
8a1b681c SW |
1991 | return 0; |
1992 | } | |
1993 | ||
d62a17ae | 1994 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
9bdf8618 | 1995 | if (len < 0) { |
15569c58 DA |
1996 | zlog_err( |
1997 | "%s: Message received from netlink is of a broken size %d %zu", | |
1998 | __func__, h->nlmsg_len, | |
1999 | (size_t)NLMSG_LENGTH(sizeof(struct ifinfomsg))); | |
d62a17ae | 2000 | return -1; |
9bdf8618 | 2001 | } |
d62a17ae | 2002 | |
2003 | /* We are interested in some AF_BRIDGE notifications. */ | |
2004 | if (ifi->ifi_family == AF_BRIDGE) | |
2005 | return netlink_bridge_interface(h, len, ns_id, startup); | |
2006 | ||
2007 | /* Looking up interface name. */ | |
0d6f7fd6 | 2008 | memset(linkinfo, 0, sizeof(linkinfo)); |
0dcd8506 SW |
2009 | netlink_parse_rtattr_flags(tb, IFLA_MAX, IFLA_RTA(ifi), len, |
2010 | NLA_F_NESTED); | |
1fdc9eae | 2011 | |
d62a17ae | 2012 | /* check for wireless messages to ignore */ |
2013 | if ((tb[IFLA_WIRELESS] != NULL) && (ifi->ifi_change == 0)) { | |
2014 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2015 | zlog_debug("%s: ignoring IFLA_WIRELESS message", | |
2016 | __func__); | |
2017 | return 0; | |
2018 | } | |
1fdc9eae | 2019 | |
d62a17ae | 2020 | if (tb[IFLA_IFNAME] == NULL) |
2021 | return -1; | |
2022 | name = (char *)RTA_DATA(tb[IFLA_IFNAME]); | |
1fdc9eae | 2023 | |
e9f79fff MS |
2024 | /* Must be valid string. */ |
2025 | len = RTA_PAYLOAD(tb[IFLA_IFNAME]); | |
2026 | if (len < 2 || name[len - 1] != '\0') { | |
2027 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2028 | zlog_debug("%s: invalid intf name", __func__); | |
2029 | return -1; | |
2030 | } | |
2031 | ||
d62a17ae | 2032 | if (tb[IFLA_LINKINFO]) { |
c9d842c7 DS |
2033 | netlink_parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, |
2034 | tb[IFLA_LINKINFO]); | |
1fdc9eae | 2035 | |
d62a17ae | 2036 | if (linkinfo[IFLA_INFO_KIND]) |
2037 | kind = RTA_DATA(linkinfo[IFLA_INFO_KIND]); | |
1fdc9eae | 2038 | |
d62a17ae | 2039 | if (linkinfo[IFLA_INFO_SLAVE_KIND]) |
2040 | slave_kind = RTA_DATA(linkinfo[IFLA_INFO_SLAVE_KIND]); | |
1fdc9eae | 2041 | |
d62a17ae | 2042 | netlink_determine_zebra_iftype(kind, &zif_type); |
2043 | } | |
6675513d | 2044 | |
d62a17ae | 2045 | /* If linking to another interface, note it. */ |
2046 | if (tb[IFLA_LINK]) | |
2047 | link_ifindex = *(ifindex_t *)RTA_DATA(tb[IFLA_LINK]); | |
1fdc9eae | 2048 | |
b1cc23b2 | 2049 | if (tb[IFLA_LINK_NETNSID]) { |
14ddb3d9 | 2050 | link_nsid = *(ns_id_t *)RTA_DATA(tb[IFLA_LINK_NETNSID]); |
b1cc23b2 PG |
2051 | link_nsid = ns_id_get_absolute(ns_id, link_nsid); |
2052 | } | |
48884c6b DS |
2053 | if (tb[IFLA_IFALIAS]) { |
2054 | desc = (char *)RTA_DATA(tb[IFLA_IFALIAS]); | |
2055 | } | |
2056 | ||
d62a17ae | 2057 | /* See if interface is present. */ |
2058 | ifp = if_lookup_by_name_per_ns(zns, name); | |
2059 | ||
2060 | if (h->nlmsg_type == RTM_NEWLINK) { | |
e4c5b3ba IR |
2061 | /* If VRF, create or update the VRF structure itself. */ |
2062 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) { | |
2063 | netlink_vrf_change(h, tb[IFLA_LINKINFO], ns_id, name); | |
2064 | vrf_id = (vrf_id_t)ifi->ifi_index; | |
2065 | } | |
2066 | ||
d62a17ae | 2067 | if (tb[IFLA_MASTER]) { |
78dd30b2 PG |
2068 | if (slave_kind && (strcmp(slave_kind, "vrf") == 0) |
2069 | && !vrf_is_backend_netns()) { | |
d62a17ae | 2070 | zif_slave_type = ZEBRA_IF_SLAVE_VRF; |
c36e442c AK |
2071 | master_infindex = vrf_id = |
2072 | *(uint32_t *)RTA_DATA(tb[IFLA_MASTER]); | |
d62a17ae | 2073 | } else if (slave_kind |
2074 | && (strcmp(slave_kind, "bridge") == 0)) { | |
2075 | zif_slave_type = ZEBRA_IF_SLAVE_BRIDGE; | |
c36e442c | 2076 | master_infindex = bridge_ifindex = |
d62a17ae | 2077 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); |
b9368db9 DD |
2078 | } else if (slave_kind |
2079 | && (strcmp(slave_kind, "bond") == 0)) { | |
2080 | zif_slave_type = ZEBRA_IF_SLAVE_BOND; | |
c36e442c | 2081 | master_infindex = bond_ifindex = |
b9368db9 | 2082 | *(ifindex_t *)RTA_DATA(tb[IFLA_MASTER]); |
00a7710c | 2083 | bypass = netlink_parse_lacp_bypass(linkinfo); |
d62a17ae | 2084 | } else |
2085 | zif_slave_type = ZEBRA_IF_SLAVE_OTHER; | |
2086 | } | |
fe533c56 PG |
2087 | if (vrf_is_backend_netns()) |
2088 | vrf_id = (vrf_id_t)ns_id; | |
d62a17ae | 2089 | if (ifp == NULL |
2090 | || !CHECK_FLAG(ifp->status, ZEBRA_INTERFACE_ACTIVE)) { | |
2091 | /* Add interface notification from kernel */ | |
2092 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2093 | zlog_debug( | |
3efd0893 | 2094 | "RTM_NEWLINK ADD for %s(%u) vrf_id %u type %d sl_type %d master %u flags 0x%x", |
d62a17ae | 2095 | name, ifi->ifi_index, vrf_id, zif_type, |
c36e442c | 2096 | zif_slave_type, master_infindex, |
d62a17ae | 2097 | ifi->ifi_flags); |
2098 | ||
2099 | if (ifp == NULL) { | |
2100 | /* unknown interface */ | |
f60a1188 | 2101 | ifp = if_get_by_name(name, vrf_id, NULL); |
d62a17ae | 2102 | } else { |
2103 | /* pre-configured interface, learnt now */ | |
096f7609 | 2104 | if (ifp->vrf->vrf_id != vrf_id) |
a36898e7 | 2105 | if_update_to_new_vrf(ifp, vrf_id); |
d62a17ae | 2106 | } |
2107 | ||
2108 | /* Update interface information. */ | |
2109 | set_ifindex(ifp, ifi->ifi_index, zns); | |
2110 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
d23b983b | 2111 | if (!tb[IFLA_MTU]) { |
9df414fe | 2112 | zlog_debug( |
d23b983b SW |
2113 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
2114 | name, ifi->ifi_index); | |
2115 | return 0; | |
2116 | } | |
d62a17ae | 2117 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
2118 | ifp->metric = 0; | |
2119 | ifp->ptm_status = ZEBRA_PTM_STATUS_UNKNOWN; | |
2120 | ||
2121 | /* Set interface type */ | |
2122 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); | |
b0fa6f6a CS |
2123 | if (IS_ZEBRA_IF_VRF(ifp)) |
2124 | SET_FLAG(ifp->status, | |
2125 | ZEBRA_INTERFACE_VRF_LOOPBACK); | |
d62a17ae | 2126 | |
2127 | /* Update link. */ | |
86bad1cb | 2128 | zebra_if_update_link(ifp, link_ifindex, link_nsid); |
d62a17ae | 2129 | |
8975bbbd IR |
2130 | ifp->ll_type = |
2131 | netlink_to_zebra_link_type(ifi->ifi_type); | |
d62a17ae | 2132 | netlink_interface_update_hw_addr(tb, ifp); |
2133 | ||
2134 | /* Inform clients, install any configured addresses. */ | |
2135 | if_add_update(ifp); | |
2136 | ||
2137 | /* Extract and save L2 interface information, take | |
2138 | * additional actions. */ | |
2139 | netlink_interface_update_l2info( | |
14ddb3d9 PG |
2140 | ifp, linkinfo[IFLA_INFO_DATA], |
2141 | 1, link_nsid); | |
d62a17ae | 2142 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp)) |
c7620108 PG |
2143 | zebra_l2if_update_bridge_slave( |
2144 | ifp, bridge_ifindex, ns_id, | |
2145 | ZEBRA_BRIDGE_NO_ACTION); | |
b9368db9 | 2146 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
00a7710c AK |
2147 | zebra_l2if_update_bond_slave(ifp, bond_ifindex, |
2148 | !!bypass); | |
c36e442c | 2149 | |
0dcd8506 SW |
2150 | if (tb[IFLA_PROTO_DOWN]) |
2151 | netlink_proc_dplane_if_protodown(ifp->info, tb); | |
f88889ba | 2152 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { |
2153 | zif = ifp->info; | |
2154 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2155 | zlog_debug( | |
2156 | "RTM_NEWLINK ADD for %s(%u), vlan-aware %d", | |
2157 | name, ifp->ifindex, | |
2158 | IS_ZEBRA_IF_BRIDGE_VLAN_AWARE( | |
2159 | zif)); | |
2160 | } | |
096f7609 | 2161 | } else if (ifp->vrf->vrf_id != vrf_id) { |
d62a17ae | 2162 | /* VRF change for an interface. */ |
2163 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2164 | zlog_debug( | |
3efd0893 | 2165 | "RTM_NEWLINK vrf-change for %s(%u) vrf_id %u -> %u flags 0x%x", |
096f7609 IR |
2166 | name, ifp->ifindex, ifp->vrf->vrf_id, |
2167 | vrf_id, ifi->ifi_flags); | |
d62a17ae | 2168 | |
a36898e7 | 2169 | if_handle_vrf_change(ifp, vrf_id); |
d62a17ae | 2170 | } else { |
b9368db9 | 2171 | bool was_bridge_slave, was_bond_slave; |
c7620108 | 2172 | uint8_t chgflags = ZEBRA_BRIDGE_NO_ACTION; |
2d04bd98 | 2173 | zif = ifp->info; |
d62a17ae | 2174 | |
2175 | /* Interface update. */ | |
2176 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2177 | zlog_debug( | |
3efd0893 | 2178 | "RTM_NEWLINK update for %s(%u) sl_type %d master %u flags 0x%x", |
d62a17ae | 2179 | name, ifp->ifindex, zif_slave_type, |
c36e442c | 2180 | master_infindex, ifi->ifi_flags); |
d62a17ae | 2181 | |
2182 | set_ifindex(ifp, ifi->ifi_index, zns); | |
d23b983b | 2183 | if (!tb[IFLA_MTU]) { |
9df414fe | 2184 | zlog_debug( |
d23b983b SW |
2185 | "RTM_NEWLINK for interface %s(%u) without MTU set", |
2186 | name, ifi->ifi_index); | |
2187 | return 0; | |
2188 | } | |
d62a17ae | 2189 | ifp->mtu6 = ifp->mtu = *(int *)RTA_DATA(tb[IFLA_MTU]); |
2190 | ifp->metric = 0; | |
2191 | ||
2192 | /* Update interface type - NOTE: Only slave_type can | |
2193 | * change. */ | |
2194 | was_bridge_slave = IS_ZEBRA_IF_BRIDGE_SLAVE(ifp); | |
b9368db9 | 2195 | was_bond_slave = IS_ZEBRA_IF_BOND_SLAVE(ifp); |
d62a17ae | 2196 | zebra_if_set_ziftype(ifp, zif_type, zif_slave_type); |
2197 | ||
97c4e1d0 CS |
2198 | memcpy(old_hw_addr, ifp->hw_addr, INTERFACE_HWADDR_MAX); |
2199 | ||
ecffe916 | 2200 | /* Update link. */ |
86bad1cb | 2201 | zebra_if_update_link(ifp, link_ifindex, link_nsid); |
ecffe916 | 2202 | |
8975bbbd IR |
2203 | ifp->ll_type = |
2204 | netlink_to_zebra_link_type(ifi->ifi_type); | |
d62a17ae | 2205 | netlink_interface_update_hw_addr(tb, ifp); |
2206 | ||
0dcd8506 SW |
2207 | if (tb[IFLA_PROTO_DOWN]) |
2208 | netlink_proc_dplane_if_protodown(ifp->info, tb); | |
2d04bd98 | 2209 | |
d62a17ae | 2210 | if (if_is_no_ptm_operative(ifp)) { |
8b48cdb9 | 2211 | bool is_up = if_is_operative(ifp); |
d62a17ae | 2212 | ifp->flags = ifi->ifi_flags & 0x0000fffff; |
2d04bd98 CS |
2213 | if (!if_is_no_ptm_operative(ifp) || |
2214 | CHECK_FLAG(zif->flags, | |
2215 | ZIF_FLAG_PROTODOWN)) { | |
d62a17ae | 2216 | if (IS_ZEBRA_DEBUG_KERNEL) |
2217 | zlog_debug( | |
2218 | "Intf %s(%u) has gone DOWN", | |
2219 | name, ifp->ifindex); | |
2220 | if_down(ifp); | |
2a181147 | 2221 | rib_update(RIB_UPDATE_KERNEL); |
d62a17ae | 2222 | } else if (if_is_operative(ifp)) { |
c7620108 PG |
2223 | bool mac_updated = false; |
2224 | ||
d62a17ae | 2225 | /* Must notify client daemons of new |
2226 | * interface status. */ | |
2227 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2228 | zlog_debug( | |
2229 | "Intf %s(%u) PTM up, notifying clients", | |
2230 | name, ifp->ifindex); | |
8b48cdb9 | 2231 | if_up(ifp, !is_up); |
97c4e1d0 CS |
2232 | |
2233 | /* Update EVPN VNI when SVI MAC change | |
2234 | */ | |
c7620108 PG |
2235 | if (memcmp(old_hw_addr, ifp->hw_addr, |
2236 | INTERFACE_HWADDR_MAX)) | |
2237 | mac_updated = true; | |
2238 | if (IS_ZEBRA_IF_VLAN(ifp) | |
2239 | && mac_updated) { | |
97c4e1d0 CS |
2240 | struct interface *link_if; |
2241 | ||
2242 | link_if = | |
2243 | if_lookup_by_index_per_ns( | |
2244 | zebra_ns_lookup(NS_DEFAULT), | |
2245 | link_ifindex); | |
2246 | if (link_if) | |
2247 | zebra_vxlan_svi_up(ifp, | |
2248 | link_if); | |
c7620108 PG |
2249 | } else if (mac_updated |
2250 | && IS_ZEBRA_IF_BRIDGE(ifp)) { | |
2251 | zlog_debug( | |
2252 | "Intf %s(%u) bridge changed MAC address", | |
2253 | name, ifp->ifindex); | |
2254 | chgflags = | |
2255 | ZEBRA_BRIDGE_MASTER_MAC_CHANGE; | |
97c4e1d0 | 2256 | } |
d62a17ae | 2257 | } |
2258 | } else { | |
2259 | ifp->flags = ifi->ifi_flags & 0x0000fffff; | |
2d04bd98 CS |
2260 | if (if_is_operative(ifp) && |
2261 | !CHECK_FLAG(zif->flags, | |
2262 | ZIF_FLAG_PROTODOWN)) { | |
d62a17ae | 2263 | if (IS_ZEBRA_DEBUG_KERNEL) |
2264 | zlog_debug( | |
2265 | "Intf %s(%u) has come UP", | |
2266 | name, ifp->ifindex); | |
8b48cdb9 | 2267 | if_up(ifp, true); |
f56a15b5 PG |
2268 | if (IS_ZEBRA_IF_BRIDGE(ifp)) |
2269 | chgflags = | |
2270 | ZEBRA_BRIDGE_MASTER_UP; | |
6f908ded QY |
2271 | } else { |
2272 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2273 | zlog_debug( | |
7913714e | 2274 | "Intf %s(%u) has gone DOWN", |
6f908ded QY |
2275 | name, ifp->ifindex); |
2276 | if_down(ifp); | |
2a181147 | 2277 | rib_update(RIB_UPDATE_KERNEL); |
d62a17ae | 2278 | } |
2279 | } | |
2280 | ||
2281 | /* Extract and save L2 interface information, take | |
2282 | * additional actions. */ | |
2283 | netlink_interface_update_l2info( | |
14ddb3d9 PG |
2284 | ifp, linkinfo[IFLA_INFO_DATA], |
2285 | 0, link_nsid); | |
c7620108 PG |
2286 | if (IS_ZEBRA_IF_BRIDGE(ifp)) |
2287 | zebra_l2if_update_bridge(ifp, chgflags); | |
c36e442c AK |
2288 | if (IS_ZEBRA_IF_BOND(ifp)) |
2289 | zebra_l2if_update_bond(ifp, true); | |
d62a17ae | 2290 | if (IS_ZEBRA_IF_BRIDGE_SLAVE(ifp) || was_bridge_slave) |
c7620108 PG |
2291 | zebra_l2if_update_bridge_slave( |
2292 | ifp, bridge_ifindex, ns_id, chgflags); | |
b9368db9 | 2293 | else if (IS_ZEBRA_IF_BOND_SLAVE(ifp) || was_bond_slave) |
00a7710c AK |
2294 | zebra_l2if_update_bond_slave(ifp, bond_ifindex, |
2295 | !!bypass); | |
f88889ba | 2296 | if (IS_ZEBRA_IF_BRIDGE(ifp)) { |
2297 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2298 | zlog_debug( | |
2299 | "RTM_NEWLINK update for %s(%u), vlan-aware %d", | |
2300 | name, ifp->ifindex, | |
2301 | IS_ZEBRA_IF_BRIDGE_VLAN_AWARE( | |
2302 | zif)); | |
2303 | } | |
d62a17ae | 2304 | } |
26f13577 DS |
2305 | |
2306 | zif = ifp->info; | |
2307 | if (zif) { | |
c0ce4875 | 2308 | XFREE(MTYPE_ZIF_DESC, zif->desc); |
26f13577 | 2309 | if (desc) |
c0ce4875 | 2310 | zif->desc = XSTRDUP(MTYPE_ZIF_DESC, desc); |
26f13577 | 2311 | } |
d62a17ae | 2312 | } else { |
2313 | /* Delete interface notification from kernel */ | |
2314 | if (ifp == NULL) { | |
9df414fe QY |
2315 | if (IS_ZEBRA_DEBUG_KERNEL) |
2316 | zlog_debug( | |
2317 | "RTM_DELLINK for unknown interface %s(%u)", | |
2318 | name, ifi->ifi_index); | |
d62a17ae | 2319 | return 0; |
2320 | } | |
2321 | ||
2322 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2323 | zlog_debug("RTM_DELLINK for %s(%u)", name, | |
2324 | ifp->ifindex); | |
2325 | ||
c36e442c AK |
2326 | if (IS_ZEBRA_IF_BOND(ifp)) |
2327 | zebra_l2if_update_bond(ifp, false); | |
00a7710c AK |
2328 | if (IS_ZEBRA_IF_BOND_SLAVE(ifp)) |
2329 | zebra_l2if_update_bond_slave(ifp, bond_ifindex, false); | |
d62a17ae | 2330 | /* Special handling for bridge or VxLAN interfaces. */ |
2331 | if (IS_ZEBRA_IF_BRIDGE(ifp)) | |
2332 | zebra_l2_bridge_del(ifp); | |
2333 | else if (IS_ZEBRA_IF_VXLAN(ifp)) | |
2334 | zebra_l2_vxlanif_del(ifp); | |
2335 | ||
d0438da6 | 2336 | if_delete_update(&ifp); |
e4c5b3ba IR |
2337 | |
2338 | /* If VRF, delete the VRF structure itself. */ | |
2339 | if (zif_type == ZEBRA_IF_VRF && !vrf_is_backend_netns()) | |
2340 | netlink_vrf_change(h, tb[IFLA_LINKINFO], ns_id, name); | |
1fdc9eae | 2341 | } |
2342 | ||
d62a17ae | 2343 | return 0; |
1fdc9eae | 2344 | } |
718e3744 | 2345 | |
5d414138 SW |
2346 | /** |
2347 | * Interface encoding helper function. | |
2348 | * | |
2349 | * \param[in] cmd netlink command. | |
2350 | * \param[in] ctx dataplane context (information snapshot). | |
2351 | * \param[out] buf buffer to hold the packet. | |
2352 | * \param[in] buflen amount of buffer bytes. | |
2353 | */ | |
c3bd894e | 2354 | |
5d414138 SW |
2355 | ssize_t netlink_intf_msg_encode(uint16_t cmd, |
2356 | const struct zebra_dplane_ctx *ctx, void *buf, | |
2357 | size_t buflen) | |
2358 | { | |
c3bd894e QY |
2359 | struct { |
2360 | struct nlmsghdr n; | |
2361 | struct ifinfomsg ifa; | |
5d414138 SW |
2362 | char buf[]; |
2363 | } *req = buf; | |
c3bd894e | 2364 | |
5d414138 SW |
2365 | struct rtattr *nest_protodown_reason; |
2366 | ifindex_t ifindex = dplane_ctx_get_ifindex(ctx); | |
5d414138 | 2367 | bool down = dplane_ctx_intf_is_protodown(ctx); |
ab465d24 | 2368 | bool pd_reason_val = dplane_ctx_get_intf_pd_reason_val(ctx); |
5d414138 SW |
2369 | struct nlsock *nl = |
2370 | kernel_netlink_nlsock_lookup(dplane_ctx_get_ns_sock(ctx)); | |
c3bd894e | 2371 | |
5d414138 SW |
2372 | if (buflen < sizeof(*req)) |
2373 | return 0; | |
c3bd894e | 2374 | |
5d414138 | 2375 | memset(req, 0, sizeof(*req)); |
c3bd894e | 2376 | |
5d414138 SW |
2377 | if (cmd != RTM_SETLINK) |
2378 | flog_err( | |
2379 | EC_ZEBRA_INTF_UPDATE_FAILURE, | |
2380 | "Only RTM_SETLINK message type currently supported in dplane pthread"); | |
c3bd894e | 2381 | |
5d414138 SW |
2382 | req->n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg)); |
2383 | req->n.nlmsg_flags = NLM_F_REQUEST; | |
2384 | req->n.nlmsg_type = cmd; | |
2385 | req->n.nlmsg_pid = nl->snl.nl_pid; | |
2386 | ||
2387 | req->ifa.ifi_index = ifindex; | |
2388 | ||
2389 | nl_attr_put8(&req->n, buflen, IFLA_PROTO_DOWN, down); | |
2390 | nl_attr_put32(&req->n, buflen, IFLA_LINK, ifindex); | |
2391 | ||
0dcd8506 SW |
2392 | /* Reason info nest */ |
2393 | nest_protodown_reason = | |
2394 | nl_attr_nest(&req->n, buflen, IFLA_PROTO_DOWN_REASON); | |
5d414138 | 2395 | |
0dcd8506 SW |
2396 | if (!nest_protodown_reason) |
2397 | return -1; | |
5d414138 | 2398 | |
0dcd8506 SW |
2399 | nl_attr_put32(&req->n, buflen, IFLA_PROTO_DOWN_REASON_MASK, |
2400 | (1 << frr_protodown_r_bit)); | |
2401 | nl_attr_put32(&req->n, buflen, IFLA_PROTO_DOWN_REASON_VALUE, | |
ab465d24 | 2402 | ((int)pd_reason_val) << frr_protodown_r_bit); |
5d414138 | 2403 | |
0dcd8506 | 2404 | nl_attr_nest_end(&req->n, nest_protodown_reason); |
5d414138 SW |
2405 | |
2406 | if (IS_ZEBRA_DEBUG_KERNEL) | |
ab465d24 SW |
2407 | zlog_debug("%s: %s, protodown=%d reason_val=%d ifindex=%u", |
2408 | __func__, nl_msg_type_to_str(cmd), down, | |
2409 | pd_reason_val, ifindex); | |
5d414138 SW |
2410 | |
2411 | return NLMSG_ALIGN(req->n.nlmsg_len); | |
c3bd894e QY |
2412 | } |
2413 | ||
718e3744 | 2414 | /* Interface information read by netlink. */ |
d62a17ae | 2415 | void interface_list(struct zebra_ns *zns) |
718e3744 | 2416 | { |
d62a17ae | 2417 | interface_lookup_netlink(zns); |
d9f5b2f5 SW |
2418 | /* We add routes for interface address, |
2419 | * so we need to get the nexthop info | |
2420 | * from the kernel before we can do that | |
2421 | */ | |
81505946 | 2422 | netlink_nexthop_read(zns); |
cc4e0650 | 2423 | |
d2bec88a | 2424 | interface_addr_lookup_netlink(zns); |
718e3744 | 2425 | } |
ddfeb486 | 2426 | |
c40e1b1c SW |
2427 | void if_netlink_set_frr_protodown_r_bit(uint8_t bit) |
2428 | { | |
2429 | if (IS_ZEBRA_DEBUG_KERNEL) | |
47c1d76a SW |
2430 | zlog_debug( |
2431 | "Protodown reason bit index changed: bit-index %u -> bit-index %u", | |
2432 | frr_protodown_r_bit, bit); | |
c40e1b1c SW |
2433 | |
2434 | frr_protodown_r_bit = bit; | |
2435 | } | |
2436 | ||
2437 | void if_netlink_unset_frr_protodown_r_bit(void) | |
2438 | { | |
2439 | if (IS_ZEBRA_DEBUG_KERNEL) | |
47c1d76a SW |
2440 | zlog_debug( |
2441 | "Protodown reason bit index changed: bit-index %u -> bit-index %u", | |
2442 | frr_protodown_r_bit, FRR_PROTODOWN_REASON_DEFAULT_BIT); | |
c40e1b1c SW |
2443 | |
2444 | frr_protodown_r_bit = FRR_PROTODOWN_REASON_DEFAULT_BIT; | |
2445 | } | |
2446 | ||
2447 | ||
2448 | bool if_netlink_frr_protodown_r_bit_is_set(void) | |
2449 | { | |
2450 | return (frr_protodown_r_bit != FRR_PROTODOWN_REASON_DEFAULT_BIT); | |
2451 | } | |
2452 | ||
2453 | uint8_t if_netlink_get_frr_protodown_r_bit(void) | |
2454 | { | |
2455 | return frr_protodown_r_bit; | |
2456 | } | |
2457 | ||
acc8e687 CS |
2458 | /** |
2459 | * netlink_request_tunneldump() - Request all tunnels from the linux kernel | |
2460 | * | |
2461 | * @zns: Zebra namespace | |
2462 | * @family: AF_* netlink family | |
2463 | * @type: RTM_* (RTM_GETTUNNEL) route type | |
2464 | * | |
2465 | * Return: Result status | |
2466 | */ | |
2467 | static int netlink_request_tunneldump(struct zebra_ns *zns, int family, | |
2468 | int ifindex) | |
2469 | { | |
2470 | struct { | |
2471 | struct nlmsghdr n; | |
2472 | struct tunnel_msg tmsg; | |
2473 | char buf[256]; | |
2474 | } req; | |
2475 | ||
2476 | /* Form the request */ | |
2477 | memset(&req, 0, sizeof(req)); | |
2478 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tunnel_msg)); | |
2479 | req.n.nlmsg_type = RTM_GETTUNNEL; | |
2480 | req.n.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; | |
2481 | req.tmsg.family = family; | |
2482 | req.tmsg.ifindex = ifindex; | |
2483 | ||
2484 | return netlink_request(&zns->netlink_cmd, &req); | |
2485 | } | |
2486 | ||
2487 | /* | |
2488 | * Currently we only ask for vxlan l3svd vni information. | |
2489 | * In the future this can be expanded. | |
2490 | */ | |
2491 | int netlink_tunneldump_read(struct zebra_ns *zns) | |
2492 | { | |
2493 | int ret = 0; | |
2494 | struct zebra_dplane_info dp_info; | |
2495 | struct route_node *rn; | |
2496 | struct interface *tmp_if = NULL; | |
2497 | struct zebra_if *zif; | |
451165eb | 2498 | struct nlsock *netlink_cmd = &zns->netlink_cmd; |
acc8e687 CS |
2499 | |
2500 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
2501 | ||
2502 | for (rn = route_top(zns->if_table); rn; rn = route_next(rn)) { | |
2503 | tmp_if = (struct interface *)rn->info; | |
2504 | if (!tmp_if) | |
2505 | continue; | |
2506 | zif = tmp_if->info; | |
2507 | if (!zif || zif->zif_type != ZEBRA_IF_VXLAN) | |
2508 | continue; | |
2509 | ||
2510 | ret = netlink_request_tunneldump(zns, PF_BRIDGE, | |
2511 | tmp_if->ifindex); | |
2512 | if (ret < 0) | |
2513 | return ret; | |
451165eb DS |
2514 | |
2515 | ret = netlink_parse_info(netlink_interface, netlink_cmd, | |
2516 | &dp_info, 0, true); | |
2517 | ||
2518 | if (ret < 0) | |
2519 | return ret; | |
acc8e687 | 2520 | } |
451165eb | 2521 | |
acc8e687 CS |
2522 | return 0; |
2523 | } | |
a26daa77 SW |
2524 | |
2525 | static const char *port_state2str(uint8_t state) | |
2526 | { | |
2527 | switch (state) { | |
2528 | case BR_STATE_DISABLED: | |
2529 | return "DISABLED"; | |
2530 | case BR_STATE_LISTENING: | |
2531 | return "LISTENING"; | |
2532 | case BR_STATE_LEARNING: | |
2533 | return "LEARNING"; | |
2534 | case BR_STATE_FORWARDING: | |
2535 | return "FORWARDING"; | |
2536 | case BR_STATE_BLOCKING: | |
2537 | return "BLOCKING"; | |
2538 | } | |
2539 | ||
2540 | return "UNKNOWN"; | |
2541 | } | |
2542 | ||
2543 | static void vxlan_vni_state_change(struct zebra_if *zif, uint16_t id, | |
2544 | uint8_t state) | |
2545 | { | |
2546 | struct zebra_vxlan_vni *vnip; | |
2547 | ||
2548 | vnip = zebra_vxlan_if_vlanid_vni_find(zif, id); | |
2549 | ||
2550 | if (!vnip) { | |
2551 | if (IS_ZEBRA_DEBUG_VXLAN) | |
2552 | zlog_debug( | |
2553 | "Cannot find VNI for VID (%u) IF %s for vlan state update", | |
2554 | id, zif->ifp->name); | |
2555 | ||
2556 | return; | |
2557 | } | |
2558 | ||
2559 | switch (state) { | |
2560 | case BR_STATE_FORWARDING: | |
2561 | zebra_vxlan_if_vni_up(zif->ifp, vnip); | |
2562 | break; | |
2563 | case BR_STATE_BLOCKING: | |
2564 | zebra_vxlan_if_vni_down(zif->ifp, vnip); | |
2565 | break; | |
2566 | case BR_STATE_DISABLED: | |
2567 | case BR_STATE_LISTENING: | |
2568 | case BR_STATE_LEARNING: | |
2569 | default: | |
2570 | /* Not used for anything at the moment */ | |
2571 | break; | |
2572 | } | |
2573 | } | |
2574 | ||
2575 | static void vlan_id_range_state_change(struct interface *ifp, uint16_t id_start, | |
2576 | uint16_t id_end, uint8_t state) | |
2577 | { | |
2578 | struct zebra_if *zif; | |
2579 | ||
2580 | zif = (struct zebra_if *)ifp->info; | |
2581 | ||
2582 | if (!zif) | |
2583 | return; | |
2584 | ||
2585 | for (uint16_t i = id_start; i <= id_end; i++) | |
2586 | vxlan_vni_state_change(zif, i, state); | |
2587 | } | |
2588 | ||
2589 | /** | |
2590 | * netlink_vlan_change() - Read in change about vlans from the kernel | |
2591 | * | |
2592 | * @h: Netlink message header | |
2593 | * @ns_id: Namspace id | |
2594 | * @startup: Are we reading under startup conditions? | |
2595 | * | |
2596 | * Return: Result status | |
2597 | */ | |
2598 | int netlink_vlan_change(struct nlmsghdr *h, ns_id_t ns_id, int startup) | |
2599 | { | |
2600 | int len, rem; | |
2601 | struct interface *ifp; | |
2602 | struct br_vlan_msg *bvm; | |
2603 | struct bridge_vlan_info *vinfo; | |
2604 | struct rtattr *vtb[BRIDGE_VLANDB_ENTRY_MAX + 1] = {}; | |
2605 | struct rtattr *attr; | |
2606 | uint8_t state; | |
2607 | uint32_t vrange; | |
2608 | int type; | |
2609 | ||
2610 | /* We only care about state changes for now */ | |
2611 | if (!(h->nlmsg_type == RTM_NEWVLAN)) | |
2612 | return 0; | |
2613 | ||
2614 | len = h->nlmsg_len - NLMSG_LENGTH(sizeof(struct br_vlan_msg)); | |
2615 | if (len < 0) { | |
2616 | zlog_warn( | |
2617 | "%s: Message received from netlink is of a broken size %d %zu", | |
2618 | __func__, h->nlmsg_len, | |
2619 | (size_t)NLMSG_LENGTH(sizeof(struct br_vlan_msg))); | |
2620 | return -1; | |
2621 | } | |
2622 | ||
2623 | bvm = NLMSG_DATA(h); | |
2624 | ||
2625 | if (bvm->family != AF_BRIDGE) | |
2626 | return 0; | |
2627 | ||
2628 | ifp = if_lookup_by_index_per_ns(zebra_ns_lookup(ns_id), bvm->ifindex); | |
2629 | if (!ifp) { | |
2630 | zlog_debug("Cannot find bridge-vlan IF (%u) for vlan update", | |
2631 | bvm->ifindex); | |
2632 | return 0; | |
2633 | } | |
2634 | ||
2635 | if (!IS_ZEBRA_IF_VXLAN(ifp)) { | |
2636 | if (IS_ZEBRA_DEBUG_KERNEL) | |
2637 | zlog_debug("Ignoring non-vxlan IF (%s) for vlan update", | |
2638 | ifp->name); | |
2639 | ||
2640 | return 0; | |
2641 | } | |
2642 | ||
2643 | if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_VXLAN) | |
2644 | zlog_debug("%s %s IF %s NS %u", | |
2645 | nl_msg_type_to_str(h->nlmsg_type), | |
2646 | nl_family_to_str(bvm->family), ifp->name, ns_id); | |
2647 | ||
2648 | /* Loop over "ALL" BRIDGE_VLANDB_ENTRY */ | |
2649 | rem = len; | |
2650 | for (attr = BRVLAN_RTA(bvm); RTA_OK(attr, rem); | |
2651 | attr = RTA_NEXT(attr, rem)) { | |
2652 | vinfo = NULL; | |
a26daa77 SW |
2653 | vrange = 0; |
2654 | ||
2655 | type = attr->rta_type & NLA_TYPE_MASK; | |
2656 | ||
2657 | if (type != BRIDGE_VLANDB_ENTRY) | |
2658 | continue; | |
2659 | ||
2660 | /* Parse nested entry data */ | |
2661 | netlink_parse_rtattr_nested(vtb, BRIDGE_VLANDB_ENTRY_MAX, attr); | |
2662 | ||
2663 | /* It must have info for the ID */ | |
2664 | if (!vtb[BRIDGE_VLANDB_ENTRY_INFO]) | |
2665 | continue; | |
2666 | ||
2667 | vinfo = (struct bridge_vlan_info *)RTA_DATA( | |
2668 | vtb[BRIDGE_VLANDB_ENTRY_INFO]); | |
2669 | ||
2670 | /* | |
2671 | * We only care about state info, if there is none, just ignore | |
2672 | * it. | |
2673 | */ | |
2674 | if (!vtb[BRIDGE_VLANDB_ENTRY_STATE]) | |
2675 | continue; | |
2676 | ||
2677 | state = *(uint8_t *)RTA_DATA(vtb[BRIDGE_VLANDB_ENTRY_STATE]); | |
2678 | ||
2679 | if (vtb[BRIDGE_VLANDB_ENTRY_RANGE]) | |
2680 | vrange = *(uint32_t *)RTA_DATA( | |
2681 | vtb[BRIDGE_VLANDB_ENTRY_RANGE]); | |
2682 | ||
2683 | if (IS_ZEBRA_DEBUG_KERNEL || IS_ZEBRA_DEBUG_VXLAN) { | |
2684 | if (vrange) | |
2685 | zlog_debug("VLANDB_ENTRY: VID (%u-%u) state=%s", | |
2686 | vinfo->vid, vrange, | |
2687 | port_state2str(state)); | |
2688 | else | |
2689 | zlog_debug("VLANDB_ENTRY: VID (%u) state=%s", | |
2690 | vinfo->vid, port_state2str(state)); | |
2691 | } | |
2692 | ||
2693 | vlan_id_range_state_change( | |
2694 | ifp, vinfo->vid, (vrange ? vrange : vinfo->vid), state); | |
2695 | } | |
2696 | ||
2697 | return 0; | |
2698 | } | |
2699 | ||
2700 | /** | |
2701 | * netlink_request_vlan() - Request vlan information from the kernel | |
2702 | * @zns: Zebra namespace | |
2703 | * @family: AF_* netlink family | |
2704 | * @type: RTM_* type | |
2705 | * | |
2706 | * Return: Result status | |
2707 | */ | |
2708 | static int netlink_request_vlan(struct zebra_ns *zns, int family, int type) | |
2709 | { | |
2710 | struct { | |
2711 | struct nlmsghdr n; | |
2712 | struct br_vlan_msg bvm; | |
2713 | char buf[256]; | |
2714 | } req; | |
2715 | ||
2716 | /* Form the request, specifying filter (rtattr) if needed. */ | |
2717 | memset(&req, 0, sizeof(req)); | |
2718 | req.n.nlmsg_type = type; | |
2719 | req.n.nlmsg_flags = NLM_F_ROOT | NLM_F_MATCH | NLM_F_REQUEST; | |
2720 | req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct br_vlan_msg)); | |
2721 | req.bvm.family = family; | |
2722 | ||
2723 | nl_attr_put32(&req.n, sizeof(req), BRIDGE_VLANDB_DUMP_FLAGS, | |
2724 | BRIDGE_VLANDB_DUMPF_STATS); | |
2725 | ||
2726 | return netlink_request(&zns->netlink_cmd, &req); | |
2727 | } | |
2728 | ||
2729 | /** | |
2730 | * netlink_vlan_read() - Vlan read function using netlink interface | |
2731 | * | |
2732 | * @zns: Zebra name space | |
2733 | * | |
2734 | * Return: Result status | |
2735 | * Only called at bootstrap time. | |
2736 | */ | |
2737 | int netlink_vlan_read(struct zebra_ns *zns) | |
2738 | { | |
2739 | int ret; | |
2740 | struct zebra_dplane_info dp_info; | |
2741 | ||
2742 | zebra_dplane_info_from_zns(&dp_info, zns, true /*is_cmd*/); | |
2743 | ||
2744 | /* Get bridg vlan info */ | |
2745 | ret = netlink_request_vlan(zns, PF_BRIDGE, RTM_GETVLAN); | |
2746 | if (ret < 0) | |
2747 | return ret; | |
2748 | ||
2749 | ret = netlink_parse_info(netlink_vlan_change, &zns->netlink_cmd, | |
2750 | &dp_info, 0, 1); | |
2751 | ||
2752 | return ret; | |
2753 | } | |
2754 | ||
ddfeb486 | 2755 | #endif /* GNU_LINUX */ |