1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * drivers/net/bond/bond_netlink.c - Netlink interface for bonding |
4 | * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us> |
5 | * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com> |
6 | */ |
7 | |
8 | #include <linux/module.h> |
9 | #include <linux/errno.h> |
10 | #include <linux/netdevice.h> |
11 | #include <linux/etherdevice.h> |
12 | #include <linux/if_link.h> |
13 | #include <linux/if_ether.h> |
14 | #include <net/netlink.h> |
15 | #include <net/rtnetlink.h> |
16 | #include <net/bonding.h> |
17 | #include <net/ipv6.h> |
18 | |
19 | static size_t bond_get_slave_size(const struct net_device *bond_dev, |
20 | const struct net_device *slave_dev) |
21 | { |
22 | return nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_SLAVE_STATE */ |
23 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_SLAVE_MII_STATUS */ |
24 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_SLAVE_LINK_FAILURE_COUNT */ |
25 | nla_total_size(MAX_ADDR_LEN) + /* IFLA_BOND_SLAVE_PERM_HWADDR */ |
26 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_SLAVE_QUEUE_ID */ |
27 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_AGGREGATOR_ID */ |
28 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE */ |
29 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE */ |
30 | nla_total_size(payload: sizeof(s32)) + /* IFLA_BOND_SLAVE_PRIO */ |
31 | 0; |
32 | } |
33 | |
34 | static int bond_fill_slave_info(struct sk_buff *skb, |
35 | const struct net_device *bond_dev, |
36 | const struct net_device *slave_dev) |
37 | { |
38 | struct slave *slave = bond_slave_get_rtnl(slave_dev); |
39 | |
40 | if (nla_put_u8(skb, attrtype: IFLA_BOND_SLAVE_STATE, value: bond_slave_state(slave))) |
41 | goto nla_put_failure; |
42 | |
43 | if (nla_put_u8(skb, attrtype: IFLA_BOND_SLAVE_MII_STATUS, value: slave->link)) |
44 | goto nla_put_failure; |
45 | |
46 | if (nla_put_u32(skb, attrtype: IFLA_BOND_SLAVE_LINK_FAILURE_COUNT, |
47 | value: slave->link_failure_count)) |
48 | goto nla_put_failure; |
49 | |
50 | if (nla_put(skb, attrtype: IFLA_BOND_SLAVE_PERM_HWADDR, |
51 | attrlen: slave_dev->addr_len, data: slave->perm_hwaddr)) |
52 | goto nla_put_failure; |
53 | |
54 | if (nla_put_u16(skb, attrtype: IFLA_BOND_SLAVE_QUEUE_ID, value: slave->queue_id)) |
55 | goto nla_put_failure; |
56 | |
57 | if (nla_put_s32(skb, attrtype: IFLA_BOND_SLAVE_PRIO, value: slave->prio)) |
58 | goto nla_put_failure; |
59 | |
60 | if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { |
61 | const struct aggregator *agg; |
62 | const struct port *ad_port; |
63 | |
64 | ad_port = &SLAVE_AD_INFO(slave)->port; |
65 | agg = SLAVE_AD_INFO(slave)->port.aggregator; |
66 | if (agg) { |
67 | if (nla_put_u16(skb, attrtype: IFLA_BOND_SLAVE_AD_AGGREGATOR_ID, |
68 | value: agg->aggregator_identifier)) |
69 | goto nla_put_failure; |
70 | if (nla_put_u8(skb, |
71 | attrtype: IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE, |
72 | value: ad_port->actor_oper_port_state)) |
73 | goto nla_put_failure; |
74 | if (nla_put_u16(skb, |
75 | attrtype: IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE, |
76 | value: ad_port->partner_oper.port_state)) |
77 | goto nla_put_failure; |
78 | } |
79 | } |
80 | |
81 | return 0; |
82 | |
83 | nla_put_failure: |
84 | return -EMSGSIZE; |
85 | } |
86 | |
87 | /* Limit the max delay range to 300s */ |
88 | static const struct netlink_range_validation delay_range = { |
89 | .max = 300000, |
90 | }; |
91 | |
92 | static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = { |
93 | [IFLA_BOND_MODE] = { .type = NLA_U8 }, |
94 | [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 }, |
95 | [IFLA_BOND_MIIMON] = { .type = NLA_U32 }, |
96 | [IFLA_BOND_UPDELAY] = { .type = NLA_U32 }, |
97 | [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 }, |
98 | [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 }, |
99 | [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 }, |
100 | [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED }, |
101 | [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 }, |
102 | [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 }, |
103 | [IFLA_BOND_PRIMARY] = { .type = NLA_U32 }, |
104 | [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 }, |
105 | [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 }, |
106 | [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 }, |
107 | [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 }, |
108 | [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 }, |
109 | [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 }, |
110 | [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 }, |
111 | [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 }, |
112 | [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 }, |
113 | [IFLA_BOND_AD_LACP_ACTIVE] = { .type = NLA_U8 }, |
114 | [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 }, |
115 | [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 }, |
116 | [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED }, |
117 | [IFLA_BOND_AD_ACTOR_SYS_PRIO] = { .type = NLA_U16 }, |
118 | [IFLA_BOND_AD_USER_PORT_KEY] = { .type = NLA_U16 }, |
119 | [IFLA_BOND_AD_ACTOR_SYSTEM] = { .type = NLA_BINARY, |
120 | .len = ETH_ALEN }, |
121 | [IFLA_BOND_TLB_DYNAMIC_LB] = { .type = NLA_U8 }, |
122 | [IFLA_BOND_PEER_NOTIF_DELAY] = NLA_POLICY_FULL_RANGE(NLA_U32, &delay_range), |
123 | [IFLA_BOND_MISSED_MAX] = { .type = NLA_U8 }, |
124 | [IFLA_BOND_NS_IP6_TARGET] = { .type = NLA_NESTED }, |
125 | }; |
126 | |
127 | static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = { |
128 | [IFLA_BOND_SLAVE_QUEUE_ID] = { .type = NLA_U16 }, |
129 | [IFLA_BOND_SLAVE_PRIO] = { .type = NLA_S32 }, |
130 | }; |
131 | |
132 | static int bond_validate(struct nlattr *tb[], struct nlattr *data[], |
133 | struct netlink_ext_ack *extack) |
134 | { |
135 | if (tb[IFLA_ADDRESS]) { |
136 | if (nla_len(nla: tb[IFLA_ADDRESS]) != ETH_ALEN) |
137 | return -EINVAL; |
138 | if (!is_valid_ether_addr(addr: nla_data(nla: tb[IFLA_ADDRESS]))) |
139 | return -EADDRNOTAVAIL; |
140 | } |
141 | return 0; |
142 | } |
143 | |
144 | static int bond_slave_changelink(struct net_device *bond_dev, |
145 | struct net_device *slave_dev, |
146 | struct nlattr *tb[], struct nlattr *data[], |
147 | struct netlink_ext_ack *extack) |
148 | { |
149 | struct bonding *bond = netdev_priv(dev: bond_dev); |
150 | struct bond_opt_value newval; |
151 | int err; |
152 | |
153 | if (!data) |
154 | return 0; |
155 | |
156 | if (data[IFLA_BOND_SLAVE_QUEUE_ID]) { |
157 | u16 queue_id = nla_get_u16(nla: data[IFLA_BOND_SLAVE_QUEUE_ID]); |
158 | char queue_id_str[IFNAMSIZ + 7]; |
159 | |
160 | /* queue_id option setting expects slave_name:queue_id */ |
161 | snprintf(buf: queue_id_str, size: sizeof(queue_id_str), fmt: "%s:%u\n" , |
162 | slave_dev->name, queue_id); |
163 | bond_opt_initstr(&newval, queue_id_str); |
164 | err = __bond_opt_set(bond, option: BOND_OPT_QUEUE_ID, val: &newval, |
165 | bad_attr: data[IFLA_BOND_SLAVE_QUEUE_ID], extack); |
166 | if (err) |
167 | return err; |
168 | } |
169 | |
170 | if (data[IFLA_BOND_SLAVE_PRIO]) { |
171 | int prio = nla_get_s32(nla: data[IFLA_BOND_SLAVE_PRIO]); |
172 | |
173 | bond_opt_slave_initval(&newval, &slave_dev, prio); |
174 | err = __bond_opt_set(bond, option: BOND_OPT_PRIO, val: &newval, |
175 | bad_attr: data[IFLA_BOND_SLAVE_PRIO], extack); |
176 | if (err) |
177 | return err; |
178 | } |
179 | |
180 | return 0; |
181 | } |
182 | |
183 | static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[], |
184 | struct nlattr *data[], |
185 | struct netlink_ext_ack *extack) |
186 | { |
187 | struct bonding *bond = netdev_priv(dev: bond_dev); |
188 | struct bond_opt_value newval; |
189 | int miimon = 0; |
190 | int err; |
191 | |
192 | if (!data) |
193 | return 0; |
194 | |
195 | if (data[IFLA_BOND_MODE]) { |
196 | int mode = nla_get_u8(nla: data[IFLA_BOND_MODE]); |
197 | |
198 | bond_opt_initval(&newval, mode); |
199 | err = __bond_opt_set(bond, option: BOND_OPT_MODE, val: &newval, |
200 | bad_attr: data[IFLA_BOND_MODE], extack); |
201 | if (err) |
202 | return err; |
203 | } |
204 | if (data[IFLA_BOND_ACTIVE_SLAVE]) { |
205 | int ifindex = nla_get_u32(nla: data[IFLA_BOND_ACTIVE_SLAVE]); |
206 | struct net_device *slave_dev; |
207 | char *active_slave = "" ; |
208 | |
209 | if (ifindex != 0) { |
210 | slave_dev = __dev_get_by_index(net: dev_net(dev: bond_dev), |
211 | ifindex); |
212 | if (!slave_dev) |
213 | return -ENODEV; |
214 | active_slave = slave_dev->name; |
215 | } |
216 | bond_opt_initstr(&newval, active_slave); |
217 | err = __bond_opt_set(bond, option: BOND_OPT_ACTIVE_SLAVE, val: &newval, |
218 | bad_attr: data[IFLA_BOND_ACTIVE_SLAVE], extack); |
219 | if (err) |
220 | return err; |
221 | } |
222 | if (data[IFLA_BOND_MIIMON]) { |
223 | miimon = nla_get_u32(nla: data[IFLA_BOND_MIIMON]); |
224 | |
225 | bond_opt_initval(&newval, miimon); |
226 | err = __bond_opt_set(bond, option: BOND_OPT_MIIMON, val: &newval, |
227 | bad_attr: data[IFLA_BOND_MIIMON], extack); |
228 | if (err) |
229 | return err; |
230 | } |
231 | if (data[IFLA_BOND_UPDELAY]) { |
232 | int updelay = nla_get_u32(nla: data[IFLA_BOND_UPDELAY]); |
233 | |
234 | bond_opt_initval(&newval, updelay); |
235 | err = __bond_opt_set(bond, option: BOND_OPT_UPDELAY, val: &newval, |
236 | bad_attr: data[IFLA_BOND_UPDELAY], extack); |
237 | if (err) |
238 | return err; |
239 | } |
240 | if (data[IFLA_BOND_DOWNDELAY]) { |
241 | int downdelay = nla_get_u32(nla: data[IFLA_BOND_DOWNDELAY]); |
242 | |
243 | bond_opt_initval(&newval, downdelay); |
244 | err = __bond_opt_set(bond, option: BOND_OPT_DOWNDELAY, val: &newval, |
245 | bad_attr: data[IFLA_BOND_DOWNDELAY], extack); |
246 | if (err) |
247 | return err; |
248 | } |
249 | if (data[IFLA_BOND_PEER_NOTIF_DELAY]) { |
250 | int delay = nla_get_u32(nla: data[IFLA_BOND_PEER_NOTIF_DELAY]); |
251 | |
252 | bond_opt_initval(&newval, delay); |
253 | err = __bond_opt_set(bond, option: BOND_OPT_PEER_NOTIF_DELAY, val: &newval, |
254 | bad_attr: data[IFLA_BOND_PEER_NOTIF_DELAY], extack); |
255 | if (err) |
256 | return err; |
257 | } |
258 | if (data[IFLA_BOND_USE_CARRIER]) { |
259 | int use_carrier = nla_get_u8(nla: data[IFLA_BOND_USE_CARRIER]); |
260 | |
261 | bond_opt_initval(&newval, use_carrier); |
262 | err = __bond_opt_set(bond, option: BOND_OPT_USE_CARRIER, val: &newval, |
263 | bad_attr: data[IFLA_BOND_USE_CARRIER], extack); |
264 | if (err) |
265 | return err; |
266 | } |
267 | if (data[IFLA_BOND_ARP_INTERVAL]) { |
268 | int arp_interval = nla_get_u32(nla: data[IFLA_BOND_ARP_INTERVAL]); |
269 | |
270 | if (arp_interval && miimon) { |
271 | NL_SET_ERR_MSG_ATTR(extack, data[IFLA_BOND_ARP_INTERVAL], |
272 | "ARP monitoring cannot be used with MII monitoring" ); |
273 | return -EINVAL; |
274 | } |
275 | |
276 | bond_opt_initval(&newval, arp_interval); |
277 | err = __bond_opt_set(bond, option: BOND_OPT_ARP_INTERVAL, val: &newval, |
278 | bad_attr: data[IFLA_BOND_ARP_INTERVAL], extack); |
279 | if (err) |
280 | return err; |
281 | } |
282 | if (data[IFLA_BOND_ARP_IP_TARGET]) { |
283 | struct nlattr *attr; |
284 | int i = 0, rem; |
285 | |
286 | bond_option_arp_ip_targets_clear(bond); |
287 | nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) { |
288 | __be32 target; |
289 | |
290 | if (nla_len(nla: attr) < sizeof(target)) |
291 | return -EINVAL; |
292 | |
293 | target = nla_get_be32(nla: attr); |
294 | |
295 | bond_opt_initval(&newval, (__force u64)target); |
296 | err = __bond_opt_set(bond, option: BOND_OPT_ARP_TARGETS, |
297 | val: &newval, |
298 | bad_attr: data[IFLA_BOND_ARP_IP_TARGET], |
299 | extack); |
300 | if (err) |
301 | break; |
302 | i++; |
303 | } |
304 | if (i == 0 && bond->params.arp_interval) |
305 | netdev_warn(dev: bond->dev, format: "Removing last arp target with arp_interval on\n" ); |
306 | if (err) |
307 | return err; |
308 | } |
309 | #if IS_ENABLED(CONFIG_IPV6) |
310 | if (data[IFLA_BOND_NS_IP6_TARGET]) { |
311 | struct nlattr *attr; |
312 | int i = 0, rem; |
313 | |
314 | bond_option_ns_ip6_targets_clear(bond); |
315 | nla_for_each_nested(attr, data[IFLA_BOND_NS_IP6_TARGET], rem) { |
316 | struct in6_addr addr6; |
317 | |
318 | if (nla_len(nla: attr) < sizeof(addr6)) { |
319 | NL_SET_ERR_MSG(extack, "Invalid IPv6 address" ); |
320 | return -EINVAL; |
321 | } |
322 | |
323 | addr6 = nla_get_in6_addr(nla: attr); |
324 | |
325 | bond_opt_initextra(&newval, &addr6, sizeof(addr6)); |
326 | err = __bond_opt_set(bond, option: BOND_OPT_NS_TARGETS, |
327 | val: &newval, |
328 | bad_attr: data[IFLA_BOND_NS_IP6_TARGET], |
329 | extack); |
330 | if (err) |
331 | break; |
332 | i++; |
333 | } |
334 | if (i == 0 && bond->params.arp_interval) |
335 | netdev_warn(dev: bond->dev, format: "Removing last ns target with arp_interval on\n" ); |
336 | if (err) |
337 | return err; |
338 | } |
339 | #endif |
340 | if (data[IFLA_BOND_ARP_VALIDATE]) { |
341 | int arp_validate = nla_get_u32(nla: data[IFLA_BOND_ARP_VALIDATE]); |
342 | |
343 | if (arp_validate && miimon) { |
344 | NL_SET_ERR_MSG_ATTR(extack, data[IFLA_BOND_ARP_INTERVAL], |
345 | "ARP validating cannot be used with MII monitoring" ); |
346 | return -EINVAL; |
347 | } |
348 | |
349 | bond_opt_initval(&newval, arp_validate); |
350 | err = __bond_opt_set(bond, option: BOND_OPT_ARP_VALIDATE, val: &newval, |
351 | bad_attr: data[IFLA_BOND_ARP_VALIDATE], extack); |
352 | if (err) |
353 | return err; |
354 | } |
355 | if (data[IFLA_BOND_ARP_ALL_TARGETS]) { |
356 | int arp_all_targets = |
357 | nla_get_u32(nla: data[IFLA_BOND_ARP_ALL_TARGETS]); |
358 | |
359 | bond_opt_initval(&newval, arp_all_targets); |
360 | err = __bond_opt_set(bond, option: BOND_OPT_ARP_ALL_TARGETS, val: &newval, |
361 | bad_attr: data[IFLA_BOND_ARP_ALL_TARGETS], extack); |
362 | if (err) |
363 | return err; |
364 | } |
365 | if (data[IFLA_BOND_PRIMARY]) { |
366 | int ifindex = nla_get_u32(nla: data[IFLA_BOND_PRIMARY]); |
367 | struct net_device *dev; |
368 | char *primary = "" ; |
369 | |
370 | dev = __dev_get_by_index(net: dev_net(dev: bond_dev), ifindex); |
371 | if (dev) |
372 | primary = dev->name; |
373 | |
374 | bond_opt_initstr(&newval, primary); |
375 | err = __bond_opt_set(bond, option: BOND_OPT_PRIMARY, val: &newval, |
376 | bad_attr: data[IFLA_BOND_PRIMARY], extack); |
377 | if (err) |
378 | return err; |
379 | } |
380 | if (data[IFLA_BOND_PRIMARY_RESELECT]) { |
381 | int primary_reselect = |
382 | nla_get_u8(nla: data[IFLA_BOND_PRIMARY_RESELECT]); |
383 | |
384 | bond_opt_initval(&newval, primary_reselect); |
385 | err = __bond_opt_set(bond, option: BOND_OPT_PRIMARY_RESELECT, val: &newval, |
386 | bad_attr: data[IFLA_BOND_PRIMARY_RESELECT], extack); |
387 | if (err) |
388 | return err; |
389 | } |
390 | if (data[IFLA_BOND_FAIL_OVER_MAC]) { |
391 | int fail_over_mac = |
392 | nla_get_u8(nla: data[IFLA_BOND_FAIL_OVER_MAC]); |
393 | |
394 | bond_opt_initval(&newval, fail_over_mac); |
395 | err = __bond_opt_set(bond, option: BOND_OPT_FAIL_OVER_MAC, val: &newval, |
396 | bad_attr: data[IFLA_BOND_FAIL_OVER_MAC], extack); |
397 | if (err) |
398 | return err; |
399 | } |
400 | if (data[IFLA_BOND_XMIT_HASH_POLICY]) { |
401 | int xmit_hash_policy = |
402 | nla_get_u8(nla: data[IFLA_BOND_XMIT_HASH_POLICY]); |
403 | |
404 | bond_opt_initval(&newval, xmit_hash_policy); |
405 | err = __bond_opt_set(bond, option: BOND_OPT_XMIT_HASH, val: &newval, |
406 | bad_attr: data[IFLA_BOND_XMIT_HASH_POLICY], extack); |
407 | if (err) |
408 | return err; |
409 | } |
410 | if (data[IFLA_BOND_RESEND_IGMP]) { |
411 | int resend_igmp = |
412 | nla_get_u32(nla: data[IFLA_BOND_RESEND_IGMP]); |
413 | |
414 | bond_opt_initval(&newval, resend_igmp); |
415 | err = __bond_opt_set(bond, option: BOND_OPT_RESEND_IGMP, val: &newval, |
416 | bad_attr: data[IFLA_BOND_RESEND_IGMP], extack); |
417 | if (err) |
418 | return err; |
419 | } |
420 | if (data[IFLA_BOND_NUM_PEER_NOTIF]) { |
421 | int num_peer_notif = |
422 | nla_get_u8(nla: data[IFLA_BOND_NUM_PEER_NOTIF]); |
423 | |
424 | bond_opt_initval(&newval, num_peer_notif); |
425 | err = __bond_opt_set(bond, option: BOND_OPT_NUM_PEER_NOTIF, val: &newval, |
426 | bad_attr: data[IFLA_BOND_NUM_PEER_NOTIF], extack); |
427 | if (err) |
428 | return err; |
429 | } |
430 | if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) { |
431 | int all_slaves_active = |
432 | nla_get_u8(nla: data[IFLA_BOND_ALL_SLAVES_ACTIVE]); |
433 | |
434 | bond_opt_initval(&newval, all_slaves_active); |
435 | err = __bond_opt_set(bond, option: BOND_OPT_ALL_SLAVES_ACTIVE, val: &newval, |
436 | bad_attr: data[IFLA_BOND_ALL_SLAVES_ACTIVE], extack); |
437 | if (err) |
438 | return err; |
439 | } |
440 | if (data[IFLA_BOND_MIN_LINKS]) { |
441 | int min_links = |
442 | nla_get_u32(nla: data[IFLA_BOND_MIN_LINKS]); |
443 | |
444 | bond_opt_initval(&newval, min_links); |
445 | err = __bond_opt_set(bond, option: BOND_OPT_MINLINKS, val: &newval, |
446 | bad_attr: data[IFLA_BOND_MIN_LINKS], extack); |
447 | if (err) |
448 | return err; |
449 | } |
450 | if (data[IFLA_BOND_LP_INTERVAL]) { |
451 | int lp_interval = |
452 | nla_get_u32(nla: data[IFLA_BOND_LP_INTERVAL]); |
453 | |
454 | bond_opt_initval(&newval, lp_interval); |
455 | err = __bond_opt_set(bond, option: BOND_OPT_LP_INTERVAL, val: &newval, |
456 | bad_attr: data[IFLA_BOND_LP_INTERVAL], extack); |
457 | if (err) |
458 | return err; |
459 | } |
460 | if (data[IFLA_BOND_PACKETS_PER_SLAVE]) { |
461 | int packets_per_slave = |
462 | nla_get_u32(nla: data[IFLA_BOND_PACKETS_PER_SLAVE]); |
463 | |
464 | bond_opt_initval(&newval, packets_per_slave); |
465 | err = __bond_opt_set(bond, option: BOND_OPT_PACKETS_PER_SLAVE, val: &newval, |
466 | bad_attr: data[IFLA_BOND_PACKETS_PER_SLAVE], extack); |
467 | if (err) |
468 | return err; |
469 | } |
470 | |
471 | if (data[IFLA_BOND_AD_LACP_ACTIVE]) { |
472 | int lacp_active = nla_get_u8(nla: data[IFLA_BOND_AD_LACP_ACTIVE]); |
473 | |
474 | bond_opt_initval(&newval, lacp_active); |
475 | err = __bond_opt_set(bond, option: BOND_OPT_LACP_ACTIVE, val: &newval, |
476 | bad_attr: data[IFLA_BOND_AD_LACP_ACTIVE], extack); |
477 | if (err) |
478 | return err; |
479 | } |
480 | |
481 | if (data[IFLA_BOND_AD_LACP_RATE]) { |
482 | int lacp_rate = |
483 | nla_get_u8(nla: data[IFLA_BOND_AD_LACP_RATE]); |
484 | |
485 | bond_opt_initval(&newval, lacp_rate); |
486 | err = __bond_opt_set(bond, option: BOND_OPT_LACP_RATE, val: &newval, |
487 | bad_attr: data[IFLA_BOND_AD_LACP_RATE], extack); |
488 | if (err) |
489 | return err; |
490 | } |
491 | if (data[IFLA_BOND_AD_SELECT]) { |
492 | int ad_select = |
493 | nla_get_u8(nla: data[IFLA_BOND_AD_SELECT]); |
494 | |
495 | bond_opt_initval(&newval, ad_select); |
496 | err = __bond_opt_set(bond, option: BOND_OPT_AD_SELECT, val: &newval, |
497 | bad_attr: data[IFLA_BOND_AD_SELECT], extack); |
498 | if (err) |
499 | return err; |
500 | } |
501 | if (data[IFLA_BOND_AD_ACTOR_SYS_PRIO]) { |
502 | int actor_sys_prio = |
503 | nla_get_u16(nla: data[IFLA_BOND_AD_ACTOR_SYS_PRIO]); |
504 | |
505 | bond_opt_initval(&newval, actor_sys_prio); |
506 | err = __bond_opt_set(bond, option: BOND_OPT_AD_ACTOR_SYS_PRIO, val: &newval, |
507 | bad_attr: data[IFLA_BOND_AD_ACTOR_SYS_PRIO], extack); |
508 | if (err) |
509 | return err; |
510 | } |
511 | if (data[IFLA_BOND_AD_USER_PORT_KEY]) { |
512 | int port_key = |
513 | nla_get_u16(nla: data[IFLA_BOND_AD_USER_PORT_KEY]); |
514 | |
515 | bond_opt_initval(&newval, port_key); |
516 | err = __bond_opt_set(bond, option: BOND_OPT_AD_USER_PORT_KEY, val: &newval, |
517 | bad_attr: data[IFLA_BOND_AD_USER_PORT_KEY], extack); |
518 | if (err) |
519 | return err; |
520 | } |
521 | if (data[IFLA_BOND_AD_ACTOR_SYSTEM]) { |
522 | if (nla_len(nla: data[IFLA_BOND_AD_ACTOR_SYSTEM]) != ETH_ALEN) |
523 | return -EINVAL; |
524 | |
525 | bond_opt_initval(&newval, |
526 | nla_get_u64(data[IFLA_BOND_AD_ACTOR_SYSTEM])); |
527 | err = __bond_opt_set(bond, option: BOND_OPT_AD_ACTOR_SYSTEM, val: &newval, |
528 | bad_attr: data[IFLA_BOND_AD_ACTOR_SYSTEM], extack); |
529 | if (err) |
530 | return err; |
531 | } |
532 | if (data[IFLA_BOND_TLB_DYNAMIC_LB]) { |
533 | int dynamic_lb = nla_get_u8(nla: data[IFLA_BOND_TLB_DYNAMIC_LB]); |
534 | |
535 | bond_opt_initval(&newval, dynamic_lb); |
536 | err = __bond_opt_set(bond, option: BOND_OPT_TLB_DYNAMIC_LB, val: &newval, |
537 | bad_attr: data[IFLA_BOND_TLB_DYNAMIC_LB], extack); |
538 | if (err) |
539 | return err; |
540 | } |
541 | |
542 | if (data[IFLA_BOND_MISSED_MAX]) { |
543 | int missed_max = nla_get_u8(nla: data[IFLA_BOND_MISSED_MAX]); |
544 | |
545 | bond_opt_initval(&newval, missed_max); |
546 | err = __bond_opt_set(bond, option: BOND_OPT_MISSED_MAX, val: &newval, |
547 | bad_attr: data[IFLA_BOND_MISSED_MAX], extack); |
548 | if (err) |
549 | return err; |
550 | } |
551 | |
552 | return 0; |
553 | } |
554 | |
555 | static int bond_newlink(struct net *src_net, struct net_device *bond_dev, |
556 | struct nlattr *tb[], struct nlattr *data[], |
557 | struct netlink_ext_ack *extack) |
558 | { |
559 | int err; |
560 | |
561 | err = bond_changelink(bond_dev, tb, data, extack); |
562 | if (err < 0) |
563 | return err; |
564 | |
565 | err = register_netdevice(dev: bond_dev); |
566 | if (!err) { |
567 | struct bonding *bond = netdev_priv(dev: bond_dev); |
568 | |
569 | netif_carrier_off(dev: bond_dev); |
570 | bond_work_init_all(bond); |
571 | } |
572 | |
573 | return err; |
574 | } |
575 | |
576 | static size_t bond_get_size(const struct net_device *bond_dev) |
577 | { |
578 | return nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_MODE */ |
579 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */ |
580 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_MIIMON */ |
581 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_UPDELAY */ |
582 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */ |
583 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */ |
584 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */ |
585 | /* IFLA_BOND_ARP_IP_TARGET */ |
586 | nla_total_size(payload: sizeof(struct nlattr)) + |
587 | nla_total_size(payload: sizeof(u32)) * BOND_MAX_ARP_TARGETS + |
588 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */ |
589 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */ |
590 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_PRIMARY */ |
591 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */ |
592 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */ |
593 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */ |
594 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */ |
595 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */ |
596 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */ |
597 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */ |
598 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */ |
599 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */ |
600 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_AD_LACP_ACTIVE */ |
601 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */ |
602 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_AD_SELECT */ |
603 | nla_total_size(payload: sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */ |
604 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */ |
605 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */ |
606 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */ |
607 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/ |
608 | nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/ |
609 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */ |
610 | nla_total_size(payload: sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */ |
611 | nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */ |
612 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_TLB_DYNAMIC_LB */ |
613 | nla_total_size(payload: sizeof(u32)) + /* IFLA_BOND_PEER_NOTIF_DELAY */ |
614 | nla_total_size(payload: sizeof(u8)) + /* IFLA_BOND_MISSED_MAX */ |
615 | /* IFLA_BOND_NS_IP6_TARGET */ |
616 | nla_total_size(payload: sizeof(struct nlattr)) + |
617 | nla_total_size(payload: sizeof(struct in6_addr)) * BOND_MAX_NS_TARGETS + |
618 | 0; |
619 | } |
620 | |
621 | static int bond_option_active_slave_get_ifindex(struct bonding *bond) |
622 | { |
623 | const struct net_device *slave; |
624 | int ifindex; |
625 | |
626 | rcu_read_lock(); |
627 | slave = bond_option_active_slave_get_rcu(bond); |
628 | ifindex = slave ? slave->ifindex : 0; |
629 | rcu_read_unlock(); |
630 | return ifindex; |
631 | } |
632 | |
633 | static int bond_fill_info(struct sk_buff *skb, |
634 | const struct net_device *bond_dev) |
635 | { |
636 | struct bonding *bond = netdev_priv(dev: bond_dev); |
637 | unsigned int packets_per_slave; |
638 | int ifindex, i, targets_added; |
639 | struct nlattr *targets; |
640 | struct slave *primary; |
641 | |
642 | if (nla_put_u8(skb, attrtype: IFLA_BOND_MODE, BOND_MODE(bond))) |
643 | goto nla_put_failure; |
644 | |
645 | ifindex = bond_option_active_slave_get_ifindex(bond); |
646 | if (ifindex && nla_put_u32(skb, attrtype: IFLA_BOND_ACTIVE_SLAVE, value: ifindex)) |
647 | goto nla_put_failure; |
648 | |
649 | if (nla_put_u32(skb, attrtype: IFLA_BOND_MIIMON, value: bond->params.miimon)) |
650 | goto nla_put_failure; |
651 | |
652 | if (nla_put_u32(skb, attrtype: IFLA_BOND_UPDELAY, |
653 | value: bond->params.updelay * bond->params.miimon)) |
654 | goto nla_put_failure; |
655 | |
656 | if (nla_put_u32(skb, attrtype: IFLA_BOND_DOWNDELAY, |
657 | value: bond->params.downdelay * bond->params.miimon)) |
658 | goto nla_put_failure; |
659 | |
660 | if (nla_put_u32(skb, attrtype: IFLA_BOND_PEER_NOTIF_DELAY, |
661 | value: bond->params.peer_notif_delay * bond->params.miimon)) |
662 | goto nla_put_failure; |
663 | |
664 | if (nla_put_u8(skb, attrtype: IFLA_BOND_USE_CARRIER, value: bond->params.use_carrier)) |
665 | goto nla_put_failure; |
666 | |
667 | if (nla_put_u32(skb, attrtype: IFLA_BOND_ARP_INTERVAL, value: bond->params.arp_interval)) |
668 | goto nla_put_failure; |
669 | |
670 | targets = nla_nest_start_noflag(skb, attrtype: IFLA_BOND_ARP_IP_TARGET); |
671 | if (!targets) |
672 | goto nla_put_failure; |
673 | |
674 | targets_added = 0; |
675 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { |
676 | if (bond->params.arp_targets[i]) { |
677 | if (nla_put_be32(skb, attrtype: i, value: bond->params.arp_targets[i])) |
678 | goto nla_put_failure; |
679 | targets_added = 1; |
680 | } |
681 | } |
682 | |
683 | if (targets_added) |
684 | nla_nest_end(skb, start: targets); |
685 | else |
686 | nla_nest_cancel(skb, start: targets); |
687 | |
688 | if (nla_put_u32(skb, attrtype: IFLA_BOND_ARP_VALIDATE, value: bond->params.arp_validate)) |
689 | goto nla_put_failure; |
690 | |
691 | if (nla_put_u32(skb, attrtype: IFLA_BOND_ARP_ALL_TARGETS, |
692 | value: bond->params.arp_all_targets)) |
693 | goto nla_put_failure; |
694 | |
695 | #if IS_ENABLED(CONFIG_IPV6) |
696 | targets = nla_nest_start(skb, attrtype: IFLA_BOND_NS_IP6_TARGET); |
697 | if (!targets) |
698 | goto nla_put_failure; |
699 | |
700 | targets_added = 0; |
701 | for (i = 0; i < BOND_MAX_NS_TARGETS; i++) { |
702 | if (!ipv6_addr_any(a: &bond->params.ns_targets[i])) { |
703 | if (nla_put_in6_addr(skb, attrtype: i, addr: &bond->params.ns_targets[i])) |
704 | goto nla_put_failure; |
705 | targets_added = 1; |
706 | } |
707 | } |
708 | |
709 | if (targets_added) |
710 | nla_nest_end(skb, start: targets); |
711 | else |
712 | nla_nest_cancel(skb, start: targets); |
713 | #endif |
714 | |
715 | primary = rtnl_dereference(bond->primary_slave); |
716 | if (primary && |
717 | nla_put_u32(skb, attrtype: IFLA_BOND_PRIMARY, value: primary->dev->ifindex)) |
718 | goto nla_put_failure; |
719 | |
720 | if (nla_put_u8(skb, attrtype: IFLA_BOND_PRIMARY_RESELECT, |
721 | value: bond->params.primary_reselect)) |
722 | goto nla_put_failure; |
723 | |
724 | if (nla_put_u8(skb, attrtype: IFLA_BOND_FAIL_OVER_MAC, |
725 | value: bond->params.fail_over_mac)) |
726 | goto nla_put_failure; |
727 | |
728 | if (nla_put_u8(skb, attrtype: IFLA_BOND_XMIT_HASH_POLICY, |
729 | value: bond->params.xmit_policy)) |
730 | goto nla_put_failure; |
731 | |
732 | if (nla_put_u32(skb, attrtype: IFLA_BOND_RESEND_IGMP, |
733 | value: bond->params.resend_igmp)) |
734 | goto nla_put_failure; |
735 | |
736 | if (nla_put_u8(skb, attrtype: IFLA_BOND_NUM_PEER_NOTIF, |
737 | value: bond->params.num_peer_notif)) |
738 | goto nla_put_failure; |
739 | |
740 | if (nla_put_u8(skb, attrtype: IFLA_BOND_ALL_SLAVES_ACTIVE, |
741 | value: bond->params.all_slaves_active)) |
742 | goto nla_put_failure; |
743 | |
744 | if (nla_put_u32(skb, attrtype: IFLA_BOND_MIN_LINKS, |
745 | value: bond->params.min_links)) |
746 | goto nla_put_failure; |
747 | |
748 | if (nla_put_u32(skb, attrtype: IFLA_BOND_LP_INTERVAL, |
749 | value: bond->params.lp_interval)) |
750 | goto nla_put_failure; |
751 | |
752 | packets_per_slave = bond->params.packets_per_slave; |
753 | if (nla_put_u32(skb, attrtype: IFLA_BOND_PACKETS_PER_SLAVE, |
754 | value: packets_per_slave)) |
755 | goto nla_put_failure; |
756 | |
757 | if (nla_put_u8(skb, attrtype: IFLA_BOND_AD_LACP_ACTIVE, |
758 | value: bond->params.lacp_active)) |
759 | goto nla_put_failure; |
760 | |
761 | if (nla_put_u8(skb, attrtype: IFLA_BOND_AD_LACP_RATE, |
762 | value: bond->params.lacp_fast)) |
763 | goto nla_put_failure; |
764 | |
765 | if (nla_put_u8(skb, attrtype: IFLA_BOND_AD_SELECT, |
766 | value: bond->params.ad_select)) |
767 | goto nla_put_failure; |
768 | |
769 | if (nla_put_u8(skb, attrtype: IFLA_BOND_TLB_DYNAMIC_LB, |
770 | value: bond->params.tlb_dynamic_lb)) |
771 | goto nla_put_failure; |
772 | |
773 | if (nla_put_u8(skb, attrtype: IFLA_BOND_MISSED_MAX, |
774 | value: bond->params.missed_max)) |
775 | goto nla_put_failure; |
776 | |
777 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
778 | struct ad_info info; |
779 | |
780 | if (capable(CAP_NET_ADMIN)) { |
781 | if (nla_put_u16(skb, attrtype: IFLA_BOND_AD_ACTOR_SYS_PRIO, |
782 | value: bond->params.ad_actor_sys_prio)) |
783 | goto nla_put_failure; |
784 | |
785 | if (nla_put_u16(skb, attrtype: IFLA_BOND_AD_USER_PORT_KEY, |
786 | value: bond->params.ad_user_port_key)) |
787 | goto nla_put_failure; |
788 | |
789 | if (nla_put(skb, attrtype: IFLA_BOND_AD_ACTOR_SYSTEM, |
790 | ETH_ALEN, data: &bond->params.ad_actor_system)) |
791 | goto nla_put_failure; |
792 | } |
793 | if (!bond_3ad_get_active_agg_info(bond, ad_info: &info)) { |
794 | struct nlattr *nest; |
795 | |
796 | nest = nla_nest_start_noflag(skb, attrtype: IFLA_BOND_AD_INFO); |
797 | if (!nest) |
798 | goto nla_put_failure; |
799 | |
800 | if (nla_put_u16(skb, attrtype: IFLA_BOND_AD_INFO_AGGREGATOR, |
801 | value: info.aggregator_id)) |
802 | goto nla_put_failure; |
803 | if (nla_put_u16(skb, attrtype: IFLA_BOND_AD_INFO_NUM_PORTS, |
804 | value: info.ports)) |
805 | goto nla_put_failure; |
806 | if (nla_put_u16(skb, attrtype: IFLA_BOND_AD_INFO_ACTOR_KEY, |
807 | value: info.actor_key)) |
808 | goto nla_put_failure; |
809 | if (nla_put_u16(skb, attrtype: IFLA_BOND_AD_INFO_PARTNER_KEY, |
810 | value: info.partner_key)) |
811 | goto nla_put_failure; |
812 | if (nla_put(skb, attrtype: IFLA_BOND_AD_INFO_PARTNER_MAC, |
813 | attrlen: sizeof(info.partner_system), |
814 | data: &info.partner_system)) |
815 | goto nla_put_failure; |
816 | |
817 | nla_nest_end(skb, start: nest); |
818 | } |
819 | } |
820 | |
821 | return 0; |
822 | |
823 | nla_put_failure: |
824 | return -EMSGSIZE; |
825 | } |
826 | |
827 | static size_t bond_get_linkxstats_size(const struct net_device *dev, int attr) |
828 | { |
829 | switch (attr) { |
830 | case IFLA_STATS_LINK_XSTATS: |
831 | case IFLA_STATS_LINK_XSTATS_SLAVE: |
832 | break; |
833 | default: |
834 | return 0; |
835 | } |
836 | |
837 | return bond_3ad_stats_size() + nla_total_size(payload: 0); |
838 | } |
839 | |
840 | static int bond_fill_linkxstats(struct sk_buff *skb, |
841 | const struct net_device *dev, |
842 | int *prividx, int attr) |
843 | { |
844 | struct nlattr *nla __maybe_unused; |
845 | struct slave *slave = NULL; |
846 | struct nlattr *nest, *nest2; |
847 | struct bonding *bond; |
848 | |
849 | switch (attr) { |
850 | case IFLA_STATS_LINK_XSTATS: |
851 | bond = netdev_priv(dev); |
852 | break; |
853 | case IFLA_STATS_LINK_XSTATS_SLAVE: |
854 | slave = bond_slave_get_rtnl(dev); |
855 | if (!slave) |
856 | return 0; |
857 | bond = slave->bond; |
858 | break; |
859 | default: |
860 | return -EINVAL; |
861 | } |
862 | |
863 | nest = nla_nest_start_noflag(skb, attrtype: LINK_XSTATS_TYPE_BOND); |
864 | if (!nest) |
865 | return -EMSGSIZE; |
866 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
867 | struct bond_3ad_stats *stats; |
868 | |
869 | if (slave) |
870 | stats = &SLAVE_AD_INFO(slave)->stats; |
871 | else |
872 | stats = &BOND_AD_INFO(bond).stats; |
873 | |
874 | nest2 = nla_nest_start_noflag(skb, attrtype: BOND_XSTATS_3AD); |
875 | if (!nest2) { |
876 | nla_nest_end(skb, start: nest); |
877 | return -EMSGSIZE; |
878 | } |
879 | |
880 | if (bond_3ad_stats_fill(skb, stats)) { |
881 | nla_nest_cancel(skb, start: nest2); |
882 | nla_nest_end(skb, start: nest); |
883 | return -EMSGSIZE; |
884 | } |
885 | nla_nest_end(skb, start: nest2); |
886 | } |
887 | nla_nest_end(skb, start: nest); |
888 | |
889 | return 0; |
890 | } |
891 | |
892 | struct rtnl_link_ops bond_link_ops __read_mostly = { |
893 | .kind = "bond" , |
894 | .priv_size = sizeof(struct bonding), |
895 | .setup = bond_setup, |
896 | .maxtype = IFLA_BOND_MAX, |
897 | .policy = bond_policy, |
898 | .validate = bond_validate, |
899 | .newlink = bond_newlink, |
900 | .changelink = bond_changelink, |
901 | .get_size = bond_get_size, |
902 | .fill_info = bond_fill_info, |
903 | .get_num_tx_queues = bond_get_num_tx_queues, |
904 | .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number |
905 | as for TX queues */ |
906 | .fill_linkxstats = bond_fill_linkxstats, |
907 | .get_linkxstats_size = bond_get_linkxstats_size, |
908 | .slave_maxtype = IFLA_BOND_SLAVE_MAX, |
909 | .slave_policy = bond_slave_policy, |
910 | .slave_changelink = bond_slave_changelink, |
911 | .get_slave_size = bond_get_slave_size, |
912 | .fill_slave_info = bond_fill_slave_info, |
913 | }; |
914 | |
915 | int __init bond_netlink_init(void) |
916 | { |
917 | return rtnl_link_register(ops: &bond_link_ops); |
918 | } |
919 | |
920 | void bond_netlink_fini(void) |
921 | { |
922 | rtnl_link_unregister(ops: &bond_link_ops); |
923 | } |
924 | |
925 | MODULE_ALIAS_RTNL_LINK("bond" ); |
926 | |