1
2
3
4
5
6
7
8
9
10
11
12#include <linux/errno.h>
13#include <linux/if.h>
14#include <linux/netdevice.h>
15#include <linux/spinlock.h>
16#include <linux/rcupdate.h>
17#include <linux/ctype.h>
18#include <linux/inet.h>
19#include <net/bonding.h>
20
21static int bond_option_active_slave_set(struct bonding *bond,
22 const struct bond_opt_value *newval);
23static int bond_option_miimon_set(struct bonding *bond,
24 const struct bond_opt_value *newval);
25static int bond_option_updelay_set(struct bonding *bond,
26 const struct bond_opt_value *newval);
27static int bond_option_downdelay_set(struct bonding *bond,
28 const struct bond_opt_value *newval);
29static int bond_option_use_carrier_set(struct bonding *bond,
30 const struct bond_opt_value *newval);
31static int bond_option_arp_interval_set(struct bonding *bond,
32 const struct bond_opt_value *newval);
33static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target);
34static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target);
35static int bond_option_arp_ip_targets_set(struct bonding *bond,
36 const struct bond_opt_value *newval);
37static int bond_option_arp_validate_set(struct bonding *bond,
38 const struct bond_opt_value *newval);
39static int bond_option_arp_all_targets_set(struct bonding *bond,
40 const struct bond_opt_value *newval);
41static int bond_option_primary_set(struct bonding *bond,
42 const struct bond_opt_value *newval);
43static int bond_option_primary_reselect_set(struct bonding *bond,
44 const struct bond_opt_value *newval);
45static int bond_option_fail_over_mac_set(struct bonding *bond,
46 const struct bond_opt_value *newval);
47static int bond_option_xmit_hash_policy_set(struct bonding *bond,
48 const struct bond_opt_value *newval);
49static int bond_option_resend_igmp_set(struct bonding *bond,
50 const struct bond_opt_value *newval);
51static int bond_option_num_peer_notif_set(struct bonding *bond,
52 const struct bond_opt_value *newval);
53static int bond_option_all_slaves_active_set(struct bonding *bond,
54 const struct bond_opt_value *newval);
55static int bond_option_min_links_set(struct bonding *bond,
56 const struct bond_opt_value *newval);
57static int bond_option_lp_interval_set(struct bonding *bond,
58 const struct bond_opt_value *newval);
59static int bond_option_pps_set(struct bonding *bond,
60 const struct bond_opt_value *newval);
61static int bond_option_lacp_rate_set(struct bonding *bond,
62 const struct bond_opt_value *newval);
63static int bond_option_ad_select_set(struct bonding *bond,
64 const struct bond_opt_value *newval);
65static int bond_option_queue_id_set(struct bonding *bond,
66 const struct bond_opt_value *newval);
67static int bond_option_mode_set(struct bonding *bond,
68 const struct bond_opt_value *newval);
69static int bond_option_slaves_set(struct bonding *bond,
70 const struct bond_opt_value *newval);
71static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
72 const struct bond_opt_value *newval);
73static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
74 const struct bond_opt_value *newval);
75static int bond_option_ad_actor_system_set(struct bonding *bond,
76 const struct bond_opt_value *newval);
77static int bond_option_ad_user_port_key_set(struct bonding *bond,
78 const struct bond_opt_value *newval);
79
80
81static const struct bond_opt_value bond_mode_tbl[] = {
82 { "balance-rr", BOND_MODE_ROUNDROBIN, BOND_VALFLAG_DEFAULT},
83 { "active-backup", BOND_MODE_ACTIVEBACKUP, 0},
84 { "balance-xor", BOND_MODE_XOR, 0},
85 { "broadcast", BOND_MODE_BROADCAST, 0},
86 { "802.3ad", BOND_MODE_8023AD, 0},
87 { "balance-tlb", BOND_MODE_TLB, 0},
88 { "balance-alb", BOND_MODE_ALB, 0},
89 { NULL, -1, 0},
90};
91
92static const struct bond_opt_value bond_pps_tbl[] = {
93 { "default", 1, BOND_VALFLAG_DEFAULT},
94 { "maxval", USHRT_MAX, BOND_VALFLAG_MAX},
95 { NULL, -1, 0},
96};
97
98static const struct bond_opt_value bond_xmit_hashtype_tbl[] = {
99 { "layer2", BOND_XMIT_POLICY_LAYER2, BOND_VALFLAG_DEFAULT},
100 { "layer3+4", BOND_XMIT_POLICY_LAYER34, 0},
101 { "layer2+3", BOND_XMIT_POLICY_LAYER23, 0},
102 { "encap2+3", BOND_XMIT_POLICY_ENCAP23, 0},
103 { "encap3+4", BOND_XMIT_POLICY_ENCAP34, 0},
104 { NULL, -1, 0},
105};
106
107static const struct bond_opt_value bond_arp_validate_tbl[] = {
108 { "none", BOND_ARP_VALIDATE_NONE, BOND_VALFLAG_DEFAULT},
109 { "active", BOND_ARP_VALIDATE_ACTIVE, 0},
110 { "backup", BOND_ARP_VALIDATE_BACKUP, 0},
111 { "all", BOND_ARP_VALIDATE_ALL, 0},
112 { "filter", BOND_ARP_FILTER, 0},
113 { "filter_active", BOND_ARP_FILTER_ACTIVE, 0},
114 { "filter_backup", BOND_ARP_FILTER_BACKUP, 0},
115 { NULL, -1, 0},
116};
117
118static const struct bond_opt_value bond_arp_all_targets_tbl[] = {
119 { "any", BOND_ARP_TARGETS_ANY, BOND_VALFLAG_DEFAULT},
120 { "all", BOND_ARP_TARGETS_ALL, 0},
121 { NULL, -1, 0},
122};
123
124static const struct bond_opt_value bond_fail_over_mac_tbl[] = {
125 { "none", BOND_FOM_NONE, BOND_VALFLAG_DEFAULT},
126 { "active", BOND_FOM_ACTIVE, 0},
127 { "follow", BOND_FOM_FOLLOW, 0},
128 { NULL, -1, 0},
129};
130
131static const struct bond_opt_value bond_intmax_tbl[] = {
132 { "off", 0, BOND_VALFLAG_DEFAULT},
133 { "maxval", INT_MAX, BOND_VALFLAG_MAX},
134 { NULL, -1, 0}
135};
136
137static const struct bond_opt_value bond_lacp_rate_tbl[] = {
138 { "slow", AD_LACP_SLOW, 0},
139 { "fast", AD_LACP_FAST, 0},
140 { NULL, -1, 0},
141};
142
143static const struct bond_opt_value bond_ad_select_tbl[] = {
144 { "stable", BOND_AD_STABLE, BOND_VALFLAG_DEFAULT},
145 { "bandwidth", BOND_AD_BANDWIDTH, 0},
146 { "count", BOND_AD_COUNT, 0},
147 { NULL, -1, 0},
148};
149
150static const struct bond_opt_value bond_num_peer_notif_tbl[] = {
151 { "off", 0, 0},
152 { "maxval", 255, BOND_VALFLAG_MAX},
153 { "default", 1, BOND_VALFLAG_DEFAULT},
154 { NULL, -1, 0}
155};
156
157static const struct bond_opt_value bond_primary_reselect_tbl[] = {
158 { "always", BOND_PRI_RESELECT_ALWAYS, BOND_VALFLAG_DEFAULT},
159 { "better", BOND_PRI_RESELECT_BETTER, 0},
160 { "failure", BOND_PRI_RESELECT_FAILURE, 0},
161 { NULL, -1},
162};
163
164static const struct bond_opt_value bond_use_carrier_tbl[] = {
165 { "off", 0, 0},
166 { "on", 1, BOND_VALFLAG_DEFAULT},
167 { NULL, -1, 0}
168};
169
170static const struct bond_opt_value bond_all_slaves_active_tbl[] = {
171 { "off", 0, BOND_VALFLAG_DEFAULT},
172 { "on", 1, 0},
173 { NULL, -1, 0}
174};
175
176static const struct bond_opt_value bond_resend_igmp_tbl[] = {
177 { "off", 0, 0},
178 { "maxval", 255, BOND_VALFLAG_MAX},
179 { "default", 1, BOND_VALFLAG_DEFAULT},
180 { NULL, -1, 0}
181};
182
183static const struct bond_opt_value bond_lp_interval_tbl[] = {
184 { "minval", 1, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
185 { "maxval", INT_MAX, BOND_VALFLAG_MAX},
186 { NULL, -1, 0},
187};
188
189static const struct bond_opt_value bond_tlb_dynamic_lb_tbl[] = {
190 { "off", 0, 0},
191 { "on", 1, BOND_VALFLAG_DEFAULT},
192 { NULL, -1, 0}
193};
194
195static const struct bond_opt_value bond_ad_actor_sys_prio_tbl[] = {
196 { "minval", 1, BOND_VALFLAG_MIN},
197 { "maxval", 65535, BOND_VALFLAG_MAX | BOND_VALFLAG_DEFAULT},
198 { NULL, -1, 0},
199};
200
201static const struct bond_opt_value bond_ad_user_port_key_tbl[] = {
202 { "minval", 0, BOND_VALFLAG_MIN | BOND_VALFLAG_DEFAULT},
203 { "maxval", 1023, BOND_VALFLAG_MAX},
204 { NULL, -1, 0},
205};
206
207static const struct bond_option bond_opts[BOND_OPT_LAST] = {
208 [BOND_OPT_MODE] = {
209 .id = BOND_OPT_MODE,
210 .name = "mode",
211 .desc = "bond device mode",
212 .flags = BOND_OPTFLAG_NOSLAVES | BOND_OPTFLAG_IFDOWN,
213 .values = bond_mode_tbl,
214 .set = bond_option_mode_set
215 },
216 [BOND_OPT_PACKETS_PER_SLAVE] = {
217 .id = BOND_OPT_PACKETS_PER_SLAVE,
218 .name = "packets_per_slave",
219 .desc = "Packets to send per slave in RR mode",
220 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ROUNDROBIN)),
221 .values = bond_pps_tbl,
222 .set = bond_option_pps_set
223 },
224 [BOND_OPT_XMIT_HASH] = {
225 .id = BOND_OPT_XMIT_HASH,
226 .name = "xmit_hash_policy",
227 .desc = "balance-xor, 802.3ad, and tlb hashing method",
228 .values = bond_xmit_hashtype_tbl,
229 .set = bond_option_xmit_hash_policy_set
230 },
231 [BOND_OPT_ARP_VALIDATE] = {
232 .id = BOND_OPT_ARP_VALIDATE,
233 .name = "arp_validate",
234 .desc = "validate src/dst of ARP probes",
235 .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
236 BIT(BOND_MODE_ALB),
237 .values = bond_arp_validate_tbl,
238 .set = bond_option_arp_validate_set
239 },
240 [BOND_OPT_ARP_ALL_TARGETS] = {
241 .id = BOND_OPT_ARP_ALL_TARGETS,
242 .name = "arp_all_targets",
243 .desc = "fail on any/all arp targets timeout",
244 .values = bond_arp_all_targets_tbl,
245 .set = bond_option_arp_all_targets_set
246 },
247 [BOND_OPT_FAIL_OVER_MAC] = {
248 .id = BOND_OPT_FAIL_OVER_MAC,
249 .name = "fail_over_mac",
250 .desc = "For active-backup, do not set all slaves to the same MAC",
251 .flags = BOND_OPTFLAG_NOSLAVES,
252 .values = bond_fail_over_mac_tbl,
253 .set = bond_option_fail_over_mac_set
254 },
255 [BOND_OPT_ARP_INTERVAL] = {
256 .id = BOND_OPT_ARP_INTERVAL,
257 .name = "arp_interval",
258 .desc = "arp interval in milliseconds",
259 .unsuppmodes = BIT(BOND_MODE_8023AD) | BIT(BOND_MODE_TLB) |
260 BIT(BOND_MODE_ALB),
261 .values = bond_intmax_tbl,
262 .set = bond_option_arp_interval_set
263 },
264 [BOND_OPT_ARP_TARGETS] = {
265 .id = BOND_OPT_ARP_TARGETS,
266 .name = "arp_ip_target",
267 .desc = "arp targets in n.n.n.n form",
268 .flags = BOND_OPTFLAG_RAWVAL,
269 .set = bond_option_arp_ip_targets_set
270 },
271 [BOND_OPT_DOWNDELAY] = {
272 .id = BOND_OPT_DOWNDELAY,
273 .name = "downdelay",
274 .desc = "Delay before considering link down, in milliseconds",
275 .values = bond_intmax_tbl,
276 .set = bond_option_downdelay_set
277 },
278 [BOND_OPT_UPDELAY] = {
279 .id = BOND_OPT_UPDELAY,
280 .name = "updelay",
281 .desc = "Delay before considering link up, in milliseconds",
282 .values = bond_intmax_tbl,
283 .set = bond_option_updelay_set
284 },
285 [BOND_OPT_LACP_RATE] = {
286 .id = BOND_OPT_LACP_RATE,
287 .name = "lacp_rate",
288 .desc = "LACPDU tx rate to request from 802.3ad partner",
289 .flags = BOND_OPTFLAG_IFDOWN,
290 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
291 .values = bond_lacp_rate_tbl,
292 .set = bond_option_lacp_rate_set
293 },
294 [BOND_OPT_MINLINKS] = {
295 .id = BOND_OPT_MINLINKS,
296 .name = "min_links",
297 .desc = "Minimum number of available links before turning on carrier",
298 .values = bond_intmax_tbl,
299 .set = bond_option_min_links_set
300 },
301 [BOND_OPT_AD_SELECT] = {
302 .id = BOND_OPT_AD_SELECT,
303 .name = "ad_select",
304 .desc = "803.ad aggregation selection logic",
305 .flags = BOND_OPTFLAG_IFDOWN,
306 .values = bond_ad_select_tbl,
307 .set = bond_option_ad_select_set
308 },
309 [BOND_OPT_NUM_PEER_NOTIF] = {
310 .id = BOND_OPT_NUM_PEER_NOTIF,
311 .name = "num_unsol_na",
312 .desc = "Number of peer notifications to send on failover event",
313 .values = bond_num_peer_notif_tbl,
314 .set = bond_option_num_peer_notif_set
315 },
316 [BOND_OPT_MIIMON] = {
317 .id = BOND_OPT_MIIMON,
318 .name = "miimon",
319 .desc = "Link check interval in milliseconds",
320 .values = bond_intmax_tbl,
321 .set = bond_option_miimon_set
322 },
323 [BOND_OPT_PRIMARY] = {
324 .id = BOND_OPT_PRIMARY,
325 .name = "primary",
326 .desc = "Primary network device to use",
327 .flags = BOND_OPTFLAG_RAWVAL,
328 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
329 BIT(BOND_MODE_TLB) |
330 BIT(BOND_MODE_ALB)),
331 .set = bond_option_primary_set
332 },
333 [BOND_OPT_PRIMARY_RESELECT] = {
334 .id = BOND_OPT_PRIMARY_RESELECT,
335 .name = "primary_reselect",
336 .desc = "Reselect primary slave once it comes up",
337 .values = bond_primary_reselect_tbl,
338 .set = bond_option_primary_reselect_set
339 },
340 [BOND_OPT_USE_CARRIER] = {
341 .id = BOND_OPT_USE_CARRIER,
342 .name = "use_carrier",
343 .desc = "Use netif_carrier_ok (vs MII ioctls) in miimon",
344 .values = bond_use_carrier_tbl,
345 .set = bond_option_use_carrier_set
346 },
347 [BOND_OPT_ACTIVE_SLAVE] = {
348 .id = BOND_OPT_ACTIVE_SLAVE,
349 .name = "active_slave",
350 .desc = "Currently active slave",
351 .flags = BOND_OPTFLAG_RAWVAL,
352 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_ACTIVEBACKUP) |
353 BIT(BOND_MODE_TLB) |
354 BIT(BOND_MODE_ALB)),
355 .set = bond_option_active_slave_set
356 },
357 [BOND_OPT_QUEUE_ID] = {
358 .id = BOND_OPT_QUEUE_ID,
359 .name = "queue_id",
360 .desc = "Set queue id of a slave",
361 .flags = BOND_OPTFLAG_RAWVAL,
362 .set = bond_option_queue_id_set
363 },
364 [BOND_OPT_ALL_SLAVES_ACTIVE] = {
365 .id = BOND_OPT_ALL_SLAVES_ACTIVE,
366 .name = "all_slaves_active",
367 .desc = "Keep all frames received on an interface by setting active flag for all slaves",
368 .values = bond_all_slaves_active_tbl,
369 .set = bond_option_all_slaves_active_set
370 },
371 [BOND_OPT_RESEND_IGMP] = {
372 .id = BOND_OPT_RESEND_IGMP,
373 .name = "resend_igmp",
374 .desc = "Number of IGMP membership reports to send on link failure",
375 .values = bond_resend_igmp_tbl,
376 .set = bond_option_resend_igmp_set
377 },
378 [BOND_OPT_LP_INTERVAL] = {
379 .id = BOND_OPT_LP_INTERVAL,
380 .name = "lp_interval",
381 .desc = "The number of seconds between instances where the bonding driver sends learning packets to each slave's peer switch",
382 .values = bond_lp_interval_tbl,
383 .set = bond_option_lp_interval_set
384 },
385 [BOND_OPT_SLAVES] = {
386 .id = BOND_OPT_SLAVES,
387 .name = "slaves",
388 .desc = "Slave membership management",
389 .flags = BOND_OPTFLAG_RAWVAL,
390 .set = bond_option_slaves_set
391 },
392 [BOND_OPT_TLB_DYNAMIC_LB] = {
393 .id = BOND_OPT_TLB_DYNAMIC_LB,
394 .name = "tlb_dynamic_lb",
395 .desc = "Enable dynamic flow shuffling",
396 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_TLB) | BIT(BOND_MODE_ALB)),
397 .values = bond_tlb_dynamic_lb_tbl,
398 .flags = BOND_OPTFLAG_IFDOWN,
399 .set = bond_option_tlb_dynamic_lb_set,
400 },
401 [BOND_OPT_AD_ACTOR_SYS_PRIO] = {
402 .id = BOND_OPT_AD_ACTOR_SYS_PRIO,
403 .name = "ad_actor_sys_prio",
404 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
405 .values = bond_ad_actor_sys_prio_tbl,
406 .set = bond_option_ad_actor_sys_prio_set,
407 },
408 [BOND_OPT_AD_ACTOR_SYSTEM] = {
409 .id = BOND_OPT_AD_ACTOR_SYSTEM,
410 .name = "ad_actor_system",
411 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
412 .flags = BOND_OPTFLAG_RAWVAL,
413 .set = bond_option_ad_actor_system_set,
414 },
415 [BOND_OPT_AD_USER_PORT_KEY] = {
416 .id = BOND_OPT_AD_USER_PORT_KEY,
417 .name = "ad_user_port_key",
418 .unsuppmodes = BOND_MODE_ALL_EX(BIT(BOND_MODE_8023AD)),
419 .flags = BOND_OPTFLAG_IFDOWN,
420 .values = bond_ad_user_port_key_tbl,
421 .set = bond_option_ad_user_port_key_set,
422 },
423 [BOND_OPT_NUM_PEER_NOTIF_ALIAS] = {
424 .id = BOND_OPT_NUM_PEER_NOTIF_ALIAS,
425 .name = "num_grat_arp",
426 .desc = "Number of peer notifications to send on failover event",
427 .values = bond_num_peer_notif_tbl,
428 .set = bond_option_num_peer_notif_set
429 }
430};
431
432
433const struct bond_option *bond_opt_get_by_name(const char *name)
434{
435 const struct bond_option *opt;
436 int option;
437
438 for (option = 0; option < BOND_OPT_LAST; option++) {
439 opt = bond_opt_get(option);
440 if (opt && !strcmp(opt->name, name))
441 return opt;
442 }
443
444 return NULL;
445}
446
447
448const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val)
449{
450 const struct bond_option *opt;
451 int i;
452
453 opt = bond_opt_get(option);
454 if (WARN_ON(!opt))
455 return NULL;
456 for (i = 0; opt->values && opt->values[i].string; i++)
457 if (opt->values[i].value == val)
458 return &opt->values[i];
459
460 return NULL;
461}
462
463
464static const struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt,
465 u32 flagmask)
466{
467 int i;
468
469 for (i = 0; opt->values && opt->values[i].string; i++)
470 if (opt->values[i].flags & flagmask)
471 return &opt->values[i];
472
473 return NULL;
474}
475
476
477
478
479static bool bond_opt_check_range(const struct bond_option *opt, u64 val)
480{
481 const struct bond_opt_value *minval, *maxval;
482
483 minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
484 maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
485 if (!maxval || (minval && val < minval->value) || val > maxval->value)
486 return false;
487
488 return true;
489}
490
491
492
493
494
495
496
497
498
499
500
501const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
502 struct bond_opt_value *val)
503{
504 char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, };
505 const struct bond_opt_value *tbl;
506 const struct bond_opt_value *ret = NULL;
507 bool checkval;
508 int i, rv;
509
510
511 if (opt->flags & BOND_OPTFLAG_RAWVAL)
512 return val;
513
514 tbl = opt->values;
515 if (!tbl)
516 goto out;
517
518
519 checkval = val->value != ULLONG_MAX;
520 if (!checkval) {
521 if (!val->string)
522 goto out;
523 p = strchr(val->string, '\n');
524 if (p)
525 *p = '\0';
526 for (p = val->string; *p; p++)
527 if (!(isdigit(*p) || isspace(*p)))
528 break;
529
530
531
532 if (*p) {
533 rv = sscanf(val->string, "%32s", valstr);
534 } else {
535 rv = sscanf(val->string, "%llu", &val->value);
536 checkval = true;
537 }
538 if (!rv)
539 goto out;
540 }
541
542 for (i = 0; tbl[i].string; i++) {
543
544 if (checkval) {
545 if (val->value == tbl[i].value)
546 ret = &tbl[i];
547 } else {
548 if (!strcmp(valstr, "default") &&
549 (tbl[i].flags & BOND_VALFLAG_DEFAULT))
550 ret = &tbl[i];
551
552 if (!strcmp(valstr, tbl[i].string))
553 ret = &tbl[i];
554 }
555
556 if (ret)
557 goto out;
558 }
559
560 if (checkval && bond_opt_check_range(opt, val->value))
561 ret = val;
562out:
563 return ret;
564}
565
566
567static int bond_opt_check_deps(struct bonding *bond,
568 const struct bond_option *opt)
569{
570 struct bond_params *params = &bond->params;
571
572 if (test_bit(params->mode, &opt->unsuppmodes))
573 return -EACCES;
574 if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond))
575 return -ENOTEMPTY;
576 if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP))
577 return -EBUSY;
578
579 return 0;
580}
581
582static void bond_opt_dep_print(struct bonding *bond,
583 const struct bond_option *opt)
584{
585 const struct bond_opt_value *modeval;
586 struct bond_params *params;
587
588 params = &bond->params;
589 modeval = bond_opt_get_val(BOND_OPT_MODE, params->mode);
590 if (test_bit(params->mode, &opt->unsuppmodes))
591 netdev_err(bond->dev, "option %s: mode dependency failed, not supported in mode %s(%llu)\n",
592 opt->name, modeval->string, modeval->value);
593}
594
595static void bond_opt_error_interpret(struct bonding *bond,
596 const struct bond_option *opt,
597 int error, const struct bond_opt_value *val)
598{
599 const struct bond_opt_value *minval, *maxval;
600 char *p;
601
602 switch (error) {
603 case -EINVAL:
604 if (val) {
605 if (val->string) {
606
607 p = strchr(val->string, '\n');
608 if (p)
609 *p = '\0';
610 netdev_err(bond->dev, "option %s: invalid value (%s)\n",
611 opt->name, val->string);
612 } else {
613 netdev_err(bond->dev, "option %s: invalid value (%llu)\n",
614 opt->name, val->value);
615 }
616 }
617 minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
618 maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
619 if (!maxval)
620 break;
621 netdev_err(bond->dev, "option %s: allowed values %llu - %llu\n",
622 opt->name, minval ? minval->value : 0, maxval->value);
623 break;
624 case -EACCES:
625 bond_opt_dep_print(bond, opt);
626 break;
627 case -ENOTEMPTY:
628 netdev_err(bond->dev, "option %s: unable to set because the bond device has slaves\n",
629 opt->name);
630 break;
631 case -EBUSY:
632 netdev_err(bond->dev, "option %s: unable to set because the bond device is up\n",
633 opt->name);
634 break;
635 default:
636 break;
637 }
638}
639
640
641
642
643
644
645
646
647
648
649
650int __bond_opt_set(struct bonding *bond,
651 unsigned int option, struct bond_opt_value *val)
652{
653 const struct bond_opt_value *retval = NULL;
654 const struct bond_option *opt;
655 int ret = -ENOENT;
656
657 ASSERT_RTNL();
658
659 opt = bond_opt_get(option);
660 if (WARN_ON(!val) || WARN_ON(!opt))
661 goto out;
662 ret = bond_opt_check_deps(bond, opt);
663 if (ret)
664 goto out;
665 retval = bond_opt_parse(opt, val);
666 if (!retval) {
667 ret = -EINVAL;
668 goto out;
669 }
670 ret = opt->set(bond, retval);
671out:
672 if (ret)
673 bond_opt_error_interpret(bond, opt, ret, val);
674
675 return ret;
676}
677
678
679
680
681
682
683
684
685
686
687
688int __bond_opt_set_notify(struct bonding *bond,
689 unsigned int option, struct bond_opt_value *val)
690{
691 int ret = -ENOENT;
692
693 ASSERT_RTNL();
694
695 ret = __bond_opt_set(bond, option, val);
696
697 if (!ret && (bond->dev->reg_state == NETREG_REGISTERED))
698 call_netdevice_notifiers(NETDEV_CHANGEINFODATA, bond->dev);
699
700 return ret;
701}
702
703
704
705
706
707
708
709
710
711
712int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf)
713{
714 struct bond_opt_value optval;
715 int ret;
716
717 if (!rtnl_trylock())
718 return restart_syscall();
719 bond_opt_initstr(&optval, buf);
720 ret = __bond_opt_set_notify(bond, option, &optval);
721 rtnl_unlock();
722
723 return ret;
724}
725
726
727
728
729
730
731
732
733const struct bond_option *bond_opt_get(unsigned int option)
734{
735 if (!BOND_OPT_VALID(option))
736 return NULL;
737
738 return &bond_opts[option];
739}
740
741static int bond_option_mode_set(struct bonding *bond,
742 const struct bond_opt_value *newval)
743{
744 if (!bond_mode_uses_arp(newval->value)) {
745 if (bond->params.arp_interval) {
746 netdev_dbg(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n",
747 newval->string);
748
749 bond->params.arp_interval = 0;
750 }
751
752 if (!bond->params.miimon) {
753
754 bond->params.miimon = BOND_DEFAULT_MIIMON;
755 netdev_dbg(bond->dev, "Setting MII monitoring interval to %d\n",
756 bond->params.miimon);
757 }
758 }
759
760 if (newval->value == BOND_MODE_ALB)
761 bond->params.tlb_dynamic_lb = 1;
762
763
764 bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
765 bond->params.mode = newval->value;
766
767 return 0;
768}
769
770static int bond_option_active_slave_set(struct bonding *bond,
771 const struct bond_opt_value *newval)
772{
773 char ifname[IFNAMSIZ] = { 0, };
774 struct net_device *slave_dev;
775 int ret = 0;
776
777 sscanf(newval->string, "%15s", ifname);
778 if (!strlen(ifname) || newval->string[0] == '\n') {
779 slave_dev = NULL;
780 } else {
781 slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname);
782 if (!slave_dev)
783 return -ENODEV;
784 }
785
786 if (slave_dev) {
787 if (!netif_is_bond_slave(slave_dev)) {
788 netdev_err(bond->dev, "Device %s is not bonding slave\n",
789 slave_dev->name);
790 return -EINVAL;
791 }
792
793 if (bond->dev != netdev_master_upper_dev_get(slave_dev)) {
794 netdev_err(bond->dev, "Device %s is not our slave\n",
795 slave_dev->name);
796 return -EINVAL;
797 }
798 }
799
800 block_netpoll_tx();
801
802 if (!slave_dev) {
803 netdev_dbg(bond->dev, "Clearing current active slave\n");
804 RCU_INIT_POINTER(bond->curr_active_slave, NULL);
805 bond_select_active_slave(bond);
806 } else {
807 struct slave *old_active = rtnl_dereference(bond->curr_active_slave);
808 struct slave *new_active = bond_slave_get_rtnl(slave_dev);
809
810 BUG_ON(!new_active);
811
812 if (new_active == old_active) {
813
814 netdev_dbg(bond->dev, "%s is already the current active slave\n",
815 new_active->dev->name);
816 } else {
817 if (old_active && (new_active->link == BOND_LINK_UP) &&
818 bond_slave_is_up(new_active)) {
819 netdev_dbg(bond->dev, "Setting %s as active slave\n",
820 new_active->dev->name);
821 bond_change_active_slave(bond, new_active);
822 } else {
823 netdev_err(bond->dev, "Could not set %s as active slave; either %s is down or the link is down\n",
824 new_active->dev->name,
825 new_active->dev->name);
826 ret = -EINVAL;
827 }
828 }
829 }
830 unblock_netpoll_tx();
831
832 return ret;
833}
834
835
836
837
838
839static int bond_option_miimon_set(struct bonding *bond,
840 const struct bond_opt_value *newval)
841{
842 netdev_dbg(bond->dev, "Setting MII monitoring interval to %llu\n",
843 newval->value);
844 bond->params.miimon = newval->value;
845 if (bond->params.updelay)
846 netdev_dbg(bond->dev, "Note: Updating updelay (to %d) since it is a multiple of the miimon value\n",
847 bond->params.updelay * bond->params.miimon);
848 if (bond->params.downdelay)
849 netdev_dbg(bond->dev, "Note: Updating downdelay (to %d) since it is a multiple of the miimon value\n",
850 bond->params.downdelay * bond->params.miimon);
851 if (newval->value && bond->params.arp_interval) {
852 netdev_dbg(bond->dev, "MII monitoring cannot be used with ARP monitoring - disabling ARP monitoring...\n");
853 bond->params.arp_interval = 0;
854 if (bond->params.arp_validate)
855 bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
856 }
857 if (bond->dev->flags & IFF_UP) {
858
859
860
861
862
863 if (!newval->value) {
864 cancel_delayed_work_sync(&bond->mii_work);
865 } else {
866 cancel_delayed_work_sync(&bond->arp_work);
867 queue_delayed_work(bond->wq, &bond->mii_work, 0);
868 }
869 }
870
871 return 0;
872}
873
874
875
876
877
878static int bond_option_updelay_set(struct bonding *bond,
879 const struct bond_opt_value *newval)
880{
881 int value = newval->value;
882
883 if (!bond->params.miimon) {
884 netdev_err(bond->dev, "Unable to set up delay as MII monitoring is disabled\n");
885 return -EPERM;
886 }
887 if ((value % bond->params.miimon) != 0) {
888 netdev_warn(bond->dev, "up delay (%d) is not a multiple of miimon (%d), updelay rounded to %d ms\n",
889 value, bond->params.miimon,
890 (value / bond->params.miimon) *
891 bond->params.miimon);
892 }
893 bond->params.updelay = value / bond->params.miimon;
894 netdev_dbg(bond->dev, "Setting up delay to %d\n",
895 bond->params.updelay * bond->params.miimon);
896
897 return 0;
898}
899
900static int bond_option_downdelay_set(struct bonding *bond,
901 const struct bond_opt_value *newval)
902{
903 int value = newval->value;
904
905 if (!bond->params.miimon) {
906 netdev_err(bond->dev, "Unable to set down delay as MII monitoring is disabled\n");
907 return -EPERM;
908 }
909 if ((value % bond->params.miimon) != 0) {
910 netdev_warn(bond->dev, "down delay (%d) is not a multiple of miimon (%d), delay rounded to %d ms\n",
911 value, bond->params.miimon,
912 (value / bond->params.miimon) *
913 bond->params.miimon);
914 }
915 bond->params.downdelay = value / bond->params.miimon;
916 netdev_dbg(bond->dev, "Setting down delay to %d\n",
917 bond->params.downdelay * bond->params.miimon);
918
919 return 0;
920}
921
922static int bond_option_use_carrier_set(struct bonding *bond,
923 const struct bond_opt_value *newval)
924{
925 netdev_dbg(bond->dev, "Setting use_carrier to %llu\n",
926 newval->value);
927 bond->params.use_carrier = newval->value;
928
929 return 0;
930}
931
932
933
934
935
936static int bond_option_arp_interval_set(struct bonding *bond,
937 const struct bond_opt_value *newval)
938{
939 netdev_dbg(bond->dev, "Setting ARP monitoring interval to %llu\n",
940 newval->value);
941 bond->params.arp_interval = newval->value;
942 if (newval->value) {
943 if (bond->params.miimon) {
944 netdev_dbg(bond->dev, "ARP monitoring cannot be used with MII monitoring. Disabling MII monitoring\n");
945 bond->params.miimon = 0;
946 }
947 if (!bond->params.arp_targets[0])
948 netdev_dbg(bond->dev, "ARP monitoring has been set up, but no ARP targets have been specified\n");
949 }
950 if (bond->dev->flags & IFF_UP) {
951
952
953
954
955
956 if (!newval->value) {
957 if (bond->params.arp_validate)
958 bond->recv_probe = NULL;
959 cancel_delayed_work_sync(&bond->arp_work);
960 } else {
961
962 bond->recv_probe = bond_arp_rcv;
963 cancel_delayed_work_sync(&bond->mii_work);
964 queue_delayed_work(bond->wq, &bond->arp_work, 0);
965 }
966 }
967
968 return 0;
969}
970
971static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot,
972 __be32 target,
973 unsigned long last_rx)
974{
975 __be32 *targets = bond->params.arp_targets;
976 struct list_head *iter;
977 struct slave *slave;
978
979 if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) {
980 bond_for_each_slave(bond, slave, iter)
981 slave->target_last_arp_rx[slot] = last_rx;
982 targets[slot] = target;
983 }
984}
985
986static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
987{
988 __be32 *targets = bond->params.arp_targets;
989 int ind;
990
991 if (!bond_is_ip_target_ok(target)) {
992 netdev_err(bond->dev, "invalid ARP target %pI4 specified for addition\n",
993 &target);
994 return -EINVAL;
995 }
996
997 if (bond_get_targets_ip(targets, target) != -1) {
998 netdev_err(bond->dev, "ARP target %pI4 is already present\n",
999 &target);
1000 return -EINVAL;
1001 }
1002
1003 ind = bond_get_targets_ip(targets, 0);
1004 if (ind == -1) {
1005 netdev_err(bond->dev, "ARP target table is full!\n");
1006 return -EINVAL;
1007 }
1008
1009 netdev_dbg(bond->dev, "Adding ARP target %pI4\n", &target);
1010
1011 _bond_options_arp_ip_target_set(bond, ind, target, jiffies);
1012
1013 return 0;
1014}
1015
1016static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
1017{
1018 return _bond_option_arp_ip_target_add(bond, target);
1019}
1020
1021static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target)
1022{
1023 __be32 *targets = bond->params.arp_targets;
1024 struct list_head *iter;
1025 struct slave *slave;
1026 unsigned long *targets_rx;
1027 int ind, i;
1028
1029 if (!bond_is_ip_target_ok(target)) {
1030 netdev_err(bond->dev, "invalid ARP target %pI4 specified for removal\n",
1031 &target);
1032 return -EINVAL;
1033 }
1034
1035 ind = bond_get_targets_ip(targets, target);
1036 if (ind == -1) {
1037 netdev_err(bond->dev, "unable to remove nonexistent ARP target %pI4\n",
1038 &target);
1039 return -EINVAL;
1040 }
1041
1042 if (ind == 0 && !targets[1] && bond->params.arp_interval)
1043 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
1044
1045 netdev_dbg(bond->dev, "Removing ARP target %pI4\n", &target);
1046
1047 bond_for_each_slave(bond, slave, iter) {
1048 targets_rx = slave->target_last_arp_rx;
1049 for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
1050 targets_rx[i] = targets_rx[i+1];
1051 targets_rx[i] = 0;
1052 }
1053 for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
1054 targets[i] = targets[i+1];
1055 targets[i] = 0;
1056
1057 return 0;
1058}
1059
1060void bond_option_arp_ip_targets_clear(struct bonding *bond)
1061{
1062 int i;
1063
1064 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
1065 _bond_options_arp_ip_target_set(bond, i, 0, 0);
1066}
1067
1068static int bond_option_arp_ip_targets_set(struct bonding *bond,
1069 const struct bond_opt_value *newval)
1070{
1071 int ret = -EPERM;
1072 __be32 target;
1073
1074 if (newval->string) {
1075 if (!in4_pton(newval->string+1, -1, (u8 *)&target, -1, NULL)) {
1076 netdev_err(bond->dev, "invalid ARP target %pI4 specified\n",
1077 &target);
1078 return ret;
1079 }
1080 if (newval->string[0] == '+')
1081 ret = bond_option_arp_ip_target_add(bond, target);
1082 else if (newval->string[0] == '-')
1083 ret = bond_option_arp_ip_target_rem(bond, target);
1084 else
1085 netdev_err(bond->dev, "no command found in arp_ip_targets file - use +<addr> or -<addr>\n");
1086 } else {
1087 target = newval->value;
1088 ret = bond_option_arp_ip_target_add(bond, target);
1089 }
1090
1091 return ret;
1092}
1093
1094static int bond_option_arp_validate_set(struct bonding *bond,
1095 const struct bond_opt_value *newval)
1096{
1097 netdev_dbg(bond->dev, "Setting arp_validate to %s (%llu)\n",
1098 newval->string, newval->value);
1099
1100 if (bond->dev->flags & IFF_UP) {
1101 if (!newval->value)
1102 bond->recv_probe = NULL;
1103 else if (bond->params.arp_interval)
1104 bond->recv_probe = bond_arp_rcv;
1105 }
1106 bond->params.arp_validate = newval->value;
1107
1108 return 0;
1109}
1110
1111static int bond_option_arp_all_targets_set(struct bonding *bond,
1112 const struct bond_opt_value *newval)
1113{
1114 netdev_dbg(bond->dev, "Setting arp_all_targets to %s (%llu)\n",
1115 newval->string, newval->value);
1116 bond->params.arp_all_targets = newval->value;
1117
1118 return 0;
1119}
1120
1121static int bond_option_primary_set(struct bonding *bond,
1122 const struct bond_opt_value *newval)
1123{
1124 char *p, *primary = newval->string;
1125 struct list_head *iter;
1126 struct slave *slave;
1127
1128 block_netpoll_tx();
1129
1130 p = strchr(primary, '\n');
1131 if (p)
1132 *p = '\0';
1133
1134 if (!strlen(primary)) {
1135 netdev_dbg(bond->dev, "Setting primary slave to None\n");
1136 RCU_INIT_POINTER(bond->primary_slave, NULL);
1137 memset(bond->params.primary, 0, sizeof(bond->params.primary));
1138 bond_select_active_slave(bond);
1139 goto out;
1140 }
1141
1142 bond_for_each_slave(bond, slave, iter) {
1143 if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) {
1144 netdev_dbg(bond->dev, "Setting %s as primary slave\n",
1145 slave->dev->name);
1146 rcu_assign_pointer(bond->primary_slave, slave);
1147 strcpy(bond->params.primary, slave->dev->name);
1148 bond->force_primary = true;
1149 bond_select_active_slave(bond);
1150 goto out;
1151 }
1152 }
1153
1154 if (rtnl_dereference(bond->primary_slave)) {
1155 netdev_dbg(bond->dev, "Setting primary slave to None\n");
1156 RCU_INIT_POINTER(bond->primary_slave, NULL);
1157 bond_select_active_slave(bond);
1158 }
1159 strncpy(bond->params.primary, primary, IFNAMSIZ);
1160 bond->params.primary[IFNAMSIZ - 1] = 0;
1161
1162 netdev_dbg(bond->dev, "Recording %s as primary, but it has not been enslaved to %s yet\n",
1163 primary, bond->dev->name);
1164
1165out:
1166 unblock_netpoll_tx();
1167
1168 return 0;
1169}
1170
1171static int bond_option_primary_reselect_set(struct bonding *bond,
1172 const struct bond_opt_value *newval)
1173{
1174 netdev_dbg(bond->dev, "Setting primary_reselect to %s (%llu)\n",
1175 newval->string, newval->value);
1176 bond->params.primary_reselect = newval->value;
1177
1178 block_netpoll_tx();
1179 bond_select_active_slave(bond);
1180 unblock_netpoll_tx();
1181
1182 return 0;
1183}
1184
1185static int bond_option_fail_over_mac_set(struct bonding *bond,
1186 const struct bond_opt_value *newval)
1187{
1188 netdev_dbg(bond->dev, "Setting fail_over_mac to %s (%llu)\n",
1189 newval->string, newval->value);
1190 bond->params.fail_over_mac = newval->value;
1191
1192 return 0;
1193}
1194
1195static int bond_option_xmit_hash_policy_set(struct bonding *bond,
1196 const struct bond_opt_value *newval)
1197{
1198 netdev_dbg(bond->dev, "Setting xmit hash policy to %s (%llu)\n",
1199 newval->string, newval->value);
1200 bond->params.xmit_policy = newval->value;
1201
1202 return 0;
1203}
1204
1205static int bond_option_resend_igmp_set(struct bonding *bond,
1206 const struct bond_opt_value *newval)
1207{
1208 netdev_dbg(bond->dev, "Setting resend_igmp to %llu\n",
1209 newval->value);
1210 bond->params.resend_igmp = newval->value;
1211
1212 return 0;
1213}
1214
1215static int bond_option_num_peer_notif_set(struct bonding *bond,
1216 const struct bond_opt_value *newval)
1217{
1218 bond->params.num_peer_notif = newval->value;
1219
1220 return 0;
1221}
1222
1223static int bond_option_all_slaves_active_set(struct bonding *bond,
1224 const struct bond_opt_value *newval)
1225{
1226 struct list_head *iter;
1227 struct slave *slave;
1228
1229 if (newval->value == bond->params.all_slaves_active)
1230 return 0;
1231 bond->params.all_slaves_active = newval->value;
1232 bond_for_each_slave(bond, slave, iter) {
1233 if (!bond_is_active_slave(slave)) {
1234 if (newval->value)
1235 slave->inactive = 0;
1236 else
1237 slave->inactive = 1;
1238 }
1239 }
1240
1241 return 0;
1242}
1243
1244static int bond_option_min_links_set(struct bonding *bond,
1245 const struct bond_opt_value *newval)
1246{
1247 netdev_dbg(bond->dev, "Setting min links value to %llu\n",
1248 newval->value);
1249 bond->params.min_links = newval->value;
1250 bond_set_carrier(bond);
1251
1252 return 0;
1253}
1254
1255static int bond_option_lp_interval_set(struct bonding *bond,
1256 const struct bond_opt_value *newval)
1257{
1258 bond->params.lp_interval = newval->value;
1259
1260 return 0;
1261}
1262
1263static int bond_option_pps_set(struct bonding *bond,
1264 const struct bond_opt_value *newval)
1265{
1266 netdev_dbg(bond->dev, "Setting packets per slave to %llu\n",
1267 newval->value);
1268 bond->params.packets_per_slave = newval->value;
1269 if (newval->value > 0) {
1270 bond->params.reciprocal_packets_per_slave =
1271 reciprocal_value(newval->value);
1272 } else {
1273
1274
1275
1276 bond->params.reciprocal_packets_per_slave =
1277 (struct reciprocal_value) { 0 };
1278 }
1279
1280 return 0;
1281}
1282
1283static int bond_option_lacp_rate_set(struct bonding *bond,
1284 const struct bond_opt_value *newval)
1285{
1286 netdev_dbg(bond->dev, "Setting LACP rate to %s (%llu)\n",
1287 newval->string, newval->value);
1288 bond->params.lacp_fast = newval->value;
1289 bond_3ad_update_lacp_rate(bond);
1290
1291 return 0;
1292}
1293
1294static int bond_option_ad_select_set(struct bonding *bond,
1295 const struct bond_opt_value *newval)
1296{
1297 netdev_dbg(bond->dev, "Setting ad_select to %s (%llu)\n",
1298 newval->string, newval->value);
1299 bond->params.ad_select = newval->value;
1300
1301 return 0;
1302}
1303
1304static int bond_option_queue_id_set(struct bonding *bond,
1305 const struct bond_opt_value *newval)
1306{
1307 struct slave *slave, *update_slave;
1308 struct net_device *sdev;
1309 struct list_head *iter;
1310 char *delim;
1311 int ret = 0;
1312 u16 qid;
1313
1314
1315 delim = strchr(newval->string, ':');
1316 if (!delim)
1317 goto err_no_cmd;
1318
1319
1320
1321
1322 *delim = '\0';
1323 if (sscanf(++delim, "%hd\n", &qid) != 1)
1324 goto err_no_cmd;
1325
1326
1327 if (!dev_valid_name(newval->string) ||
1328 qid > bond->dev->real_num_tx_queues)
1329 goto err_no_cmd;
1330
1331
1332 sdev = __dev_get_by_name(dev_net(bond->dev), newval->string);
1333 if (!sdev)
1334 goto err_no_cmd;
1335
1336
1337 update_slave = NULL;
1338 bond_for_each_slave(bond, slave, iter) {
1339 if (sdev == slave->dev)
1340
1341
1342
1343 update_slave = slave;
1344 else if (qid && qid == slave->queue_id) {
1345 goto err_no_cmd;
1346 }
1347 }
1348
1349 if (!update_slave)
1350 goto err_no_cmd;
1351
1352
1353 update_slave->queue_id = qid;
1354
1355out:
1356 return ret;
1357
1358err_no_cmd:
1359 netdev_dbg(bond->dev, "invalid input for queue_id set\n");
1360 ret = -EPERM;
1361 goto out;
1362
1363}
1364
1365static int bond_option_slaves_set(struct bonding *bond,
1366 const struct bond_opt_value *newval)
1367{
1368 char command[IFNAMSIZ + 1] = { 0, };
1369 struct net_device *dev;
1370 char *ifname;
1371 int ret;
1372
1373 sscanf(newval->string, "%16s", command);
1374 ifname = command + 1;
1375 if ((strlen(command) <= 1) ||
1376 !dev_valid_name(ifname))
1377 goto err_no_cmd;
1378
1379 dev = __dev_get_by_name(dev_net(bond->dev), ifname);
1380 if (!dev) {
1381 netdev_dbg(bond->dev, "interface %s does not exist!\n",
1382 ifname);
1383 ret = -ENODEV;
1384 goto out;
1385 }
1386
1387 switch (command[0]) {
1388 case '+':
1389 netdev_dbg(bond->dev, "Adding slave %s\n", dev->name);
1390 ret = bond_enslave(bond->dev, dev);
1391 break;
1392
1393 case '-':
1394 netdev_dbg(bond->dev, "Removing slave %s\n", dev->name);
1395 ret = bond_release(bond->dev, dev);
1396 break;
1397
1398 default:
1399 goto err_no_cmd;
1400 }
1401
1402out:
1403 return ret;
1404
1405err_no_cmd:
1406 netdev_err(bond->dev, "no command found in slaves file - use +ifname or -ifname\n");
1407 ret = -EPERM;
1408 goto out;
1409}
1410
1411static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
1412 const struct bond_opt_value *newval)
1413{
1414 netdev_dbg(bond->dev, "Setting dynamic-lb to %s (%llu)\n",
1415 newval->string, newval->value);
1416 bond->params.tlb_dynamic_lb = newval->value;
1417
1418 return 0;
1419}
1420
1421static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
1422 const struct bond_opt_value *newval)
1423{
1424 netdev_dbg(bond->dev, "Setting ad_actor_sys_prio to %llu\n",
1425 newval->value);
1426
1427 bond->params.ad_actor_sys_prio = newval->value;
1428 bond_3ad_update_ad_actor_settings(bond);
1429
1430 return 0;
1431}
1432
1433static int bond_option_ad_actor_system_set(struct bonding *bond,
1434 const struct bond_opt_value *newval)
1435{
1436 u8 macaddr[ETH_ALEN];
1437 u8 *mac;
1438
1439 if (newval->string) {
1440 if (!mac_pton(newval->string, macaddr))
1441 goto err;
1442 mac = macaddr;
1443 } else {
1444 mac = (u8 *)&newval->value;
1445 }
1446
1447 if (!is_valid_ether_addr(mac))
1448 goto err;
1449
1450 netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n", mac);
1451 ether_addr_copy(bond->params.ad_actor_system, mac);
1452 bond_3ad_update_ad_actor_settings(bond);
1453
1454 return 0;
1455
1456err:
1457 netdev_err(bond->dev, "Invalid MAC address.\n");
1458 return -EINVAL;
1459}
1460
1461static int bond_option_ad_user_port_key_set(struct bonding *bond,
1462 const struct bond_opt_value *newval)
1463{
1464 netdev_dbg(bond->dev, "Setting ad_user_port_key to %llu\n",
1465 newval->value);
1466
1467 bond->params.ad_user_port_key = newval->value;
1468 return 0;
1469}
1470
