This source file includes following definitions.
- bond_opt_get_by_name
- bond_opt_get_val
- bond_opt_get_flags
- bond_opt_check_range
- bond_opt_parse
- bond_opt_check_deps
- bond_opt_dep_print
- bond_opt_error_interpret
- __bond_opt_set
- __bond_opt_set_notify
- bond_opt_tryset_rtnl
- bond_opt_get
- bond_option_mode_set
- bond_option_active_slave_set
- bond_option_miimon_set
- _bond_option_delay_set
- bond_option_updelay_set
- bond_option_downdelay_set
- bond_option_peer_notif_delay_set
- bond_option_use_carrier_set
- bond_option_arp_interval_set
- _bond_options_arp_ip_target_set
- _bond_option_arp_ip_target_add
- bond_option_arp_ip_target_add
- bond_option_arp_ip_target_rem
- bond_option_arp_ip_targets_clear
- bond_option_arp_ip_targets_set
- bond_option_arp_validate_set
- bond_option_arp_all_targets_set
- bond_option_primary_set
- bond_option_primary_reselect_set
- bond_option_fail_over_mac_set
- bond_option_xmit_hash_policy_set
- bond_option_resend_igmp_set
- bond_option_num_peer_notif_set
- bond_option_all_slaves_active_set
- bond_option_min_links_set
- bond_option_lp_interval_set
- bond_option_pps_set
- bond_option_lacp_rate_set
- bond_option_ad_select_set
- bond_option_queue_id_set
- bond_option_slaves_set
- bond_option_tlb_dynamic_lb_set
- bond_option_ad_actor_sys_prio_set
- bond_option_ad_actor_system_set
- bond_option_ad_user_port_key_set
1
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7
8 #include <linux/errno.h>
9 #include <linux/if.h>
10 #include <linux/netdevice.h>
11 #include <linux/spinlock.h>
12 #include <linux/rcupdate.h>
13 #include <linux/ctype.h>
14 #include <linux/inet.h>
15 #include <linux/sched/signal.h>
16
17 #include <net/bonding.h>
18
19 static int bond_option_active_slave_set(struct bonding *bond,
20 const struct bond_opt_value *newval);
21 static int bond_option_miimon_set(struct bonding *bond,
22 const struct bond_opt_value *newval);
23 static int bond_option_updelay_set(struct bonding *bond,
24 const struct bond_opt_value *newval);
25 static int bond_option_downdelay_set(struct bonding *bond,
26 const struct bond_opt_value *newval);
27 static int bond_option_peer_notif_delay_set(struct bonding *bond,
28 const struct bond_opt_value *newval);
29 static int bond_option_use_carrier_set(struct bonding *bond,
30 const struct bond_opt_value *newval);
31 static int bond_option_arp_interval_set(struct bonding *bond,
32 const struct bond_opt_value *newval);
33 static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target);
34 static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target);
35 static int bond_option_arp_ip_targets_set(struct bonding *bond,
36 const struct bond_opt_value *newval);
37 static int bond_option_arp_validate_set(struct bonding *bond,
38 const struct bond_opt_value *newval);
39 static int bond_option_arp_all_targets_set(struct bonding *bond,
40 const struct bond_opt_value *newval);
41 static int bond_option_primary_set(struct bonding *bond,
42 const struct bond_opt_value *newval);
43 static int bond_option_primary_reselect_set(struct bonding *bond,
44 const struct bond_opt_value *newval);
45 static int bond_option_fail_over_mac_set(struct bonding *bond,
46 const struct bond_opt_value *newval);
47 static int bond_option_xmit_hash_policy_set(struct bonding *bond,
48 const struct bond_opt_value *newval);
49 static int bond_option_resend_igmp_set(struct bonding *bond,
50 const struct bond_opt_value *newval);
51 static int bond_option_num_peer_notif_set(struct bonding *bond,
52 const struct bond_opt_value *newval);
53 static int bond_option_all_slaves_active_set(struct bonding *bond,
54 const struct bond_opt_value *newval);
55 static int bond_option_min_links_set(struct bonding *bond,
56 const struct bond_opt_value *newval);
57 static int bond_option_lp_interval_set(struct bonding *bond,
58 const struct bond_opt_value *newval);
59 static int bond_option_pps_set(struct bonding *bond,
60 const struct bond_opt_value *newval);
61 static int bond_option_lacp_rate_set(struct bonding *bond,
62 const struct bond_opt_value *newval);
63 static int bond_option_ad_select_set(struct bonding *bond,
64 const struct bond_opt_value *newval);
65 static int bond_option_queue_id_set(struct bonding *bond,
66 const struct bond_opt_value *newval);
67 static int bond_option_mode_set(struct bonding *bond,
68 const struct bond_opt_value *newval);
69 static int bond_option_slaves_set(struct bonding *bond,
70 const struct bond_opt_value *newval);
71 static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
72 const struct bond_opt_value *newval);
73 static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
74 const struct bond_opt_value *newval);
75 static int bond_option_ad_actor_system_set(struct bonding *bond,
76 const struct bond_opt_value *newval);
77 static int bond_option_ad_user_port_key_set(struct bonding *bond,
78 const struct bond_opt_value *newval);
79
80
81 static 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
92 static 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
98 static 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
107 static 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
118 static 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
124 static 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
131 static 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
137 static 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
143 static 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
150 static 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
157 static 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
164 static 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
170 static 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
176 static 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
183 static 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
189 static 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
195 static 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
201 static 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
207 static 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 [BOND_OPT_PEER_NOTIF_DELAY] = {
431 .id = BOND_OPT_PEER_NOTIF_DELAY,
432 .name = "peer_notif_delay",
433 .desc = "Delay between each peer notification on failover event, in milliseconds",
434 .values = bond_intmax_tbl,
435 .set = bond_option_peer_notif_delay_set
436 }
437 };
438
439
440 const struct bond_option *bond_opt_get_by_name(const char *name)
441 {
442 const struct bond_option *opt;
443 int option;
444
445 for (option = 0; option < BOND_OPT_LAST; option++) {
446 opt = bond_opt_get(option);
447 if (opt && !strcmp(opt->name, name))
448 return opt;
449 }
450
451 return NULL;
452 }
453
454
455 const struct bond_opt_value *bond_opt_get_val(unsigned int option, u64 val)
456 {
457 const struct bond_option *opt;
458 int i;
459
460 opt = bond_opt_get(option);
461 if (WARN_ON(!opt))
462 return NULL;
463 for (i = 0; opt->values && opt->values[i].string; i++)
464 if (opt->values[i].value == val)
465 return &opt->values[i];
466
467 return NULL;
468 }
469
470
471 static const struct bond_opt_value *bond_opt_get_flags(const struct bond_option *opt,
472 u32 flagmask)
473 {
474 int i;
475
476 for (i = 0; opt->values && opt->values[i].string; i++)
477 if (opt->values[i].flags & flagmask)
478 return &opt->values[i];
479
480 return NULL;
481 }
482
483
484
485
486 static bool bond_opt_check_range(const struct bond_option *opt, u64 val)
487 {
488 const struct bond_opt_value *minval, *maxval;
489
490 minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
491 maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
492 if (!maxval || (minval && val < minval->value) || val > maxval->value)
493 return false;
494
495 return true;
496 }
497
498
499
500
501
502
503
504
505
506
507
508 const struct bond_opt_value *bond_opt_parse(const struct bond_option *opt,
509 struct bond_opt_value *val)
510 {
511 char *p, valstr[BOND_OPT_MAX_NAMELEN + 1] = { 0, };
512 const struct bond_opt_value *tbl;
513 const struct bond_opt_value *ret = NULL;
514 bool checkval;
515 int i, rv;
516
517
518 if (opt->flags & BOND_OPTFLAG_RAWVAL)
519 return val;
520
521 tbl = opt->values;
522 if (!tbl)
523 goto out;
524
525
526 checkval = val->value != ULLONG_MAX;
527 if (!checkval) {
528 if (!val->string)
529 goto out;
530 p = strchr(val->string, '\n');
531 if (p)
532 *p = '\0';
533 for (p = val->string; *p; p++)
534 if (!(isdigit(*p) || isspace(*p)))
535 break;
536
537
538
539 if (*p) {
540 rv = sscanf(val->string, "%32s", valstr);
541 } else {
542 rv = sscanf(val->string, "%llu", &val->value);
543 checkval = true;
544 }
545 if (!rv)
546 goto out;
547 }
548
549 for (i = 0; tbl[i].string; i++) {
550
551 if (checkval) {
552 if (val->value == tbl[i].value)
553 ret = &tbl[i];
554 } else {
555 if (!strcmp(valstr, "default") &&
556 (tbl[i].flags & BOND_VALFLAG_DEFAULT))
557 ret = &tbl[i];
558
559 if (!strcmp(valstr, tbl[i].string))
560 ret = &tbl[i];
561 }
562
563 if (ret)
564 goto out;
565 }
566
567 if (checkval && bond_opt_check_range(opt, val->value))
568 ret = val;
569 out:
570 return ret;
571 }
572
573
574 static int bond_opt_check_deps(struct bonding *bond,
575 const struct bond_option *opt)
576 {
577 struct bond_params *params = &bond->params;
578
579 if (test_bit(params->mode, &opt->unsuppmodes))
580 return -EACCES;
581 if ((opt->flags & BOND_OPTFLAG_NOSLAVES) && bond_has_slaves(bond))
582 return -ENOTEMPTY;
583 if ((opt->flags & BOND_OPTFLAG_IFDOWN) && (bond->dev->flags & IFF_UP))
584 return -EBUSY;
585
586 return 0;
587 }
588
589 static void bond_opt_dep_print(struct bonding *bond,
590 const struct bond_option *opt)
591 {
592 const struct bond_opt_value *modeval;
593 struct bond_params *params;
594
595 params = &bond->params;
596 modeval = bond_opt_get_val(BOND_OPT_MODE, params->mode);
597 if (test_bit(params->mode, &opt->unsuppmodes))
598 netdev_err(bond->dev, "option %s: mode dependency failed, not supported in mode %s(%llu)\n",
599 opt->name, modeval->string, modeval->value);
600 }
601
602 static void bond_opt_error_interpret(struct bonding *bond,
603 const struct bond_option *opt,
604 int error, const struct bond_opt_value *val)
605 {
606 const struct bond_opt_value *minval, *maxval;
607 char *p;
608
609 switch (error) {
610 case -EINVAL:
611 if (val) {
612 if (val->string) {
613
614 p = strchr(val->string, '\n');
615 if (p)
616 *p = '\0';
617 netdev_err(bond->dev, "option %s: invalid value (%s)\n",
618 opt->name, val->string);
619 } else {
620 netdev_err(bond->dev, "option %s: invalid value (%llu)\n",
621 opt->name, val->value);
622 }
623 }
624 minval = bond_opt_get_flags(opt, BOND_VALFLAG_MIN);
625 maxval = bond_opt_get_flags(opt, BOND_VALFLAG_MAX);
626 if (!maxval)
627 break;
628 netdev_err(bond->dev, "option %s: allowed values %llu - %llu\n",
629 opt->name, minval ? minval->value : 0, maxval->value);
630 break;
631 case -EACCES:
632 bond_opt_dep_print(bond, opt);
633 break;
634 case -ENOTEMPTY:
635 netdev_err(bond->dev, "option %s: unable to set because the bond device has slaves\n",
636 opt->name);
637 break;
638 case -EBUSY:
639 netdev_err(bond->dev, "option %s: unable to set because the bond device is up\n",
640 opt->name);
641 break;
642 default:
643 break;
644 }
645 }
646
647
648
649
650
651
652
653
654
655
656
657 int __bond_opt_set(struct bonding *bond,
658 unsigned int option, struct bond_opt_value *val)
659 {
660 const struct bond_opt_value *retval = NULL;
661 const struct bond_option *opt;
662 int ret = -ENOENT;
663
664 ASSERT_RTNL();
665
666 opt = bond_opt_get(option);
667 if (WARN_ON(!val) || WARN_ON(!opt))
668 goto out;
669 ret = bond_opt_check_deps(bond, opt);
670 if (ret)
671 goto out;
672 retval = bond_opt_parse(opt, val);
673 if (!retval) {
674 ret = -EINVAL;
675 goto out;
676 }
677 ret = opt->set(bond, retval);
678 out:
679 if (ret)
680 bond_opt_error_interpret(bond, opt, ret, val);
681
682 return ret;
683 }
684
685
686
687
688
689
690
691
692
693
694
695 int __bond_opt_set_notify(struct bonding *bond,
696 unsigned int option, struct bond_opt_value *val)
697 {
698 int ret = -ENOENT;
699
700 ASSERT_RTNL();
701
702 ret = __bond_opt_set(bond, option, val);
703
704 if (!ret && (bond->dev->reg_state == NETREG_REGISTERED))
705 call_netdevice_notifiers(NETDEV_CHANGEINFODATA, bond->dev);
706
707 return ret;
708 }
709
710
711
712
713
714
715
716
717
718
719 int bond_opt_tryset_rtnl(struct bonding *bond, unsigned int option, char *buf)
720 {
721 struct bond_opt_value optval;
722 int ret;
723
724 if (!rtnl_trylock())
725 return restart_syscall();
726 bond_opt_initstr(&optval, buf);
727 ret = __bond_opt_set_notify(bond, option, &optval);
728 rtnl_unlock();
729
730 return ret;
731 }
732
733
734
735
736
737
738
739
740 const struct bond_option *bond_opt_get(unsigned int option)
741 {
742 if (!BOND_OPT_VALID(option))
743 return NULL;
744
745 return &bond_opts[option];
746 }
747
748 static int bond_option_mode_set(struct bonding *bond,
749 const struct bond_opt_value *newval)
750 {
751 if (!bond_mode_uses_arp(newval->value)) {
752 if (bond->params.arp_interval) {
753 netdev_dbg(bond->dev, "%s mode is incompatible with arp monitoring, start mii monitoring\n",
754 newval->string);
755
756 bond->params.arp_interval = 0;
757 }
758
759 if (!bond->params.miimon) {
760
761 bond->params.miimon = BOND_DEFAULT_MIIMON;
762 netdev_dbg(bond->dev, "Setting MII monitoring interval to %d\n",
763 bond->params.miimon);
764 }
765 }
766
767 if (newval->value == BOND_MODE_ALB)
768 bond->params.tlb_dynamic_lb = 1;
769
770
771 bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
772 bond->params.mode = newval->value;
773
774 return 0;
775 }
776
777 static int bond_option_active_slave_set(struct bonding *bond,
778 const struct bond_opt_value *newval)
779 {
780 char ifname[IFNAMSIZ] = { 0, };
781 struct net_device *slave_dev;
782 int ret = 0;
783
784 sscanf(newval->string, "%15s", ifname);
785 if (!strlen(ifname) || newval->string[0] == '\n') {
786 slave_dev = NULL;
787 } else {
788 slave_dev = __dev_get_by_name(dev_net(bond->dev), ifname);
789 if (!slave_dev)
790 return -ENODEV;
791 }
792
793 if (slave_dev) {
794 if (!netif_is_bond_slave(slave_dev)) {
795 slave_err(bond->dev, slave_dev, "Device is not bonding slave\n");
796 return -EINVAL;
797 }
798
799 if (bond->dev != netdev_master_upper_dev_get(slave_dev)) {
800 slave_err(bond->dev, slave_dev, "Device is not our slave\n");
801 return -EINVAL;
802 }
803 }
804
805 block_netpoll_tx();
806
807 if (!slave_dev) {
808 netdev_dbg(bond->dev, "Clearing current active slave\n");
809 RCU_INIT_POINTER(bond->curr_active_slave, NULL);
810 bond_select_active_slave(bond);
811 } else {
812 struct slave *old_active = rtnl_dereference(bond->curr_active_slave);
813 struct slave *new_active = bond_slave_get_rtnl(slave_dev);
814
815 BUG_ON(!new_active);
816
817 if (new_active == old_active) {
818
819 slave_dbg(bond->dev, new_active->dev, "is already the current active slave\n");
820 } else {
821 if (old_active && (new_active->link == BOND_LINK_UP) &&
822 bond_slave_is_up(new_active)) {
823 slave_dbg(bond->dev, new_active->dev, "Setting as active slave\n");
824 bond_change_active_slave(bond, new_active);
825 } else {
826 slave_err(bond->dev, new_active->dev, "Could not set as active slave; either %s is down or the link is down\n",
827 new_active->dev->name);
828 ret = -EINVAL;
829 }
830 }
831 }
832 unblock_netpoll_tx();
833
834 return ret;
835 }
836
837
838
839
840
841 static int bond_option_miimon_set(struct bonding *bond,
842 const struct bond_opt_value *newval)
843 {
844 netdev_dbg(bond->dev, "Setting MII monitoring interval to %llu\n",
845 newval->value);
846 bond->params.miimon = newval->value;
847 if (bond->params.updelay)
848 netdev_dbg(bond->dev, "Note: Updating updelay (to %d) since it is a multiple of the miimon value\n",
849 bond->params.updelay * bond->params.miimon);
850 if (bond->params.downdelay)
851 netdev_dbg(bond->dev, "Note: Updating downdelay (to %d) since it is a multiple of the miimon value\n",
852 bond->params.downdelay * bond->params.miimon);
853 if (bond->params.peer_notif_delay)
854 netdev_dbg(bond->dev, "Note: Updating peer_notif_delay (to %d) since it is a multiple of the miimon value\n",
855 bond->params.peer_notif_delay * bond->params.miimon);
856 if (newval->value && bond->params.arp_interval) {
857 netdev_dbg(bond->dev, "MII monitoring cannot be used with ARP monitoring - disabling ARP monitoring...\n");
858 bond->params.arp_interval = 0;
859 if (bond->params.arp_validate)
860 bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
861 }
862 if (bond->dev->flags & IFF_UP) {
863
864
865
866
867
868 if (!newval->value) {
869 cancel_delayed_work_sync(&bond->mii_work);
870 } else {
871 cancel_delayed_work_sync(&bond->arp_work);
872 queue_delayed_work(bond->wq, &bond->mii_work, 0);
873 }
874 }
875
876 return 0;
877 }
878
879
880
881
882
883 static int _bond_option_delay_set(struct bonding *bond,
884 const struct bond_opt_value *newval,
885 const char *name,
886 int *target)
887 {
888 int value = newval->value;
889
890 if (!bond->params.miimon) {
891 netdev_err(bond->dev, "Unable to set %s as MII monitoring is disabled\n",
892 name);
893 return -EPERM;
894 }
895 if ((value % bond->params.miimon) != 0) {
896 netdev_warn(bond->dev,
897 "%s (%d) is not a multiple of miimon (%d), value rounded to %d ms\n",
898 name,
899 value, bond->params.miimon,
900 (value / bond->params.miimon) *
901 bond->params.miimon);
902 }
903 *target = value / bond->params.miimon;
904 netdev_dbg(bond->dev, "Setting %s to %d\n",
905 name,
906 *target * bond->params.miimon);
907
908 return 0;
909 }
910
911 static int bond_option_updelay_set(struct bonding *bond,
912 const struct bond_opt_value *newval)
913 {
914 return _bond_option_delay_set(bond, newval, "up delay",
915 &bond->params.updelay);
916 }
917
918 static int bond_option_downdelay_set(struct bonding *bond,
919 const struct bond_opt_value *newval)
920 {
921 return _bond_option_delay_set(bond, newval, "down delay",
922 &bond->params.downdelay);
923 }
924
925 static int bond_option_peer_notif_delay_set(struct bonding *bond,
926 const struct bond_opt_value *newval)
927 {
928 int ret = _bond_option_delay_set(bond, newval,
929 "peer notification delay",
930 &bond->params.peer_notif_delay);
931 return ret;
932 }
933
934 static int bond_option_use_carrier_set(struct bonding *bond,
935 const struct bond_opt_value *newval)
936 {
937 netdev_dbg(bond->dev, "Setting use_carrier to %llu\n",
938 newval->value);
939 bond->params.use_carrier = newval->value;
940
941 return 0;
942 }
943
944
945
946
947
948 static int bond_option_arp_interval_set(struct bonding *bond,
949 const struct bond_opt_value *newval)
950 {
951 netdev_dbg(bond->dev, "Setting ARP monitoring interval to %llu\n",
952 newval->value);
953 bond->params.arp_interval = newval->value;
954 if (newval->value) {
955 if (bond->params.miimon) {
956 netdev_dbg(bond->dev, "ARP monitoring cannot be used with MII monitoring. Disabling MII monitoring\n");
957 bond->params.miimon = 0;
958 }
959 if (!bond->params.arp_targets[0])
960 netdev_dbg(bond->dev, "ARP monitoring has been set up, but no ARP targets have been specified\n");
961 }
962 if (bond->dev->flags & IFF_UP) {
963
964
965
966
967
968 if (!newval->value) {
969 if (bond->params.arp_validate)
970 bond->recv_probe = NULL;
971 cancel_delayed_work_sync(&bond->arp_work);
972 } else {
973
974 bond->recv_probe = bond_arp_rcv;
975 cancel_delayed_work_sync(&bond->mii_work);
976 queue_delayed_work(bond->wq, &bond->arp_work, 0);
977 }
978 }
979
980 return 0;
981 }
982
983 static void _bond_options_arp_ip_target_set(struct bonding *bond, int slot,
984 __be32 target,
985 unsigned long last_rx)
986 {
987 __be32 *targets = bond->params.arp_targets;
988 struct list_head *iter;
989 struct slave *slave;
990
991 if (slot >= 0 && slot < BOND_MAX_ARP_TARGETS) {
992 bond_for_each_slave(bond, slave, iter)
993 slave->target_last_arp_rx[slot] = last_rx;
994 targets[slot] = target;
995 }
996 }
997
998 static int _bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
999 {
1000 __be32 *targets = bond->params.arp_targets;
1001 int ind;
1002
1003 if (!bond_is_ip_target_ok(target)) {
1004 netdev_err(bond->dev, "invalid ARP target %pI4 specified for addition\n",
1005 &target);
1006 return -EINVAL;
1007 }
1008
1009 if (bond_get_targets_ip(targets, target) != -1) {
1010 netdev_err(bond->dev, "ARP target %pI4 is already present\n",
1011 &target);
1012 return -EINVAL;
1013 }
1014
1015 ind = bond_get_targets_ip(targets, 0);
1016 if (ind == -1) {
1017 netdev_err(bond->dev, "ARP target table is full!\n");
1018 return -EINVAL;
1019 }
1020
1021 netdev_dbg(bond->dev, "Adding ARP target %pI4\n", &target);
1022
1023 _bond_options_arp_ip_target_set(bond, ind, target, jiffies);
1024
1025 return 0;
1026 }
1027
1028 static int bond_option_arp_ip_target_add(struct bonding *bond, __be32 target)
1029 {
1030 return _bond_option_arp_ip_target_add(bond, target);
1031 }
1032
1033 static int bond_option_arp_ip_target_rem(struct bonding *bond, __be32 target)
1034 {
1035 __be32 *targets = bond->params.arp_targets;
1036 struct list_head *iter;
1037 struct slave *slave;
1038 unsigned long *targets_rx;
1039 int ind, i;
1040
1041 if (!bond_is_ip_target_ok(target)) {
1042 netdev_err(bond->dev, "invalid ARP target %pI4 specified for removal\n",
1043 &target);
1044 return -EINVAL;
1045 }
1046
1047 ind = bond_get_targets_ip(targets, target);
1048 if (ind == -1) {
1049 netdev_err(bond->dev, "unable to remove nonexistent ARP target %pI4\n",
1050 &target);
1051 return -EINVAL;
1052 }
1053
1054 if (ind == 0 && !targets[1] && bond->params.arp_interval)
1055 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n");
1056
1057 netdev_dbg(bond->dev, "Removing ARP target %pI4\n", &target);
1058
1059 bond_for_each_slave(bond, slave, iter) {
1060 targets_rx = slave->target_last_arp_rx;
1061 for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
1062 targets_rx[i] = targets_rx[i+1];
1063 targets_rx[i] = 0;
1064 }
1065 for (i = ind; (i < BOND_MAX_ARP_TARGETS-1) && targets[i+1]; i++)
1066 targets[i] = targets[i+1];
1067 targets[i] = 0;
1068
1069 return 0;
1070 }
1071
1072 void bond_option_arp_ip_targets_clear(struct bonding *bond)
1073 {
1074 int i;
1075
1076 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
1077 _bond_options_arp_ip_target_set(bond, i, 0, 0);
1078 }
1079
1080 static int bond_option_arp_ip_targets_set(struct bonding *bond,
1081 const struct bond_opt_value *newval)
1082 {
1083 int ret = -EPERM;
1084 __be32 target;
1085
1086 if (newval->string) {
1087 if (!in4_pton(newval->string+1, -1, (u8 *)&target, -1, NULL)) {
1088 netdev_err(bond->dev, "invalid ARP target %pI4 specified\n",
1089 &target);
1090 return ret;
1091 }
1092 if (newval->string[0] == '+')
1093 ret = bond_option_arp_ip_target_add(bond, target);
1094 else if (newval->string[0] == '-')
1095 ret = bond_option_arp_ip_target_rem(bond, target);
1096 else
1097 netdev_err(bond->dev, "no command found in arp_ip_targets file - use +<addr> or -<addr>\n");
1098 } else {
1099 target = newval->value;
1100 ret = bond_option_arp_ip_target_add(bond, target);
1101 }
1102
1103 return ret;
1104 }
1105
1106 static int bond_option_arp_validate_set(struct bonding *bond,
1107 const struct bond_opt_value *newval)
1108 {
1109 netdev_dbg(bond->dev, "Setting arp_validate to %s (%llu)\n",
1110 newval->string, newval->value);
1111 bond->params.arp_validate = newval->value;
1112
1113 return 0;
1114 }
1115
1116 static int bond_option_arp_all_targets_set(struct bonding *bond,
1117 const struct bond_opt_value *newval)
1118 {
1119 netdev_dbg(bond->dev, "Setting arp_all_targets to %s (%llu)\n",
1120 newval->string, newval->value);
1121 bond->params.arp_all_targets = newval->value;
1122
1123 return 0;
1124 }
1125
1126 static int bond_option_primary_set(struct bonding *bond,
1127 const struct bond_opt_value *newval)
1128 {
1129 char *p, *primary = newval->string;
1130 struct list_head *iter;
1131 struct slave *slave;
1132
1133 block_netpoll_tx();
1134
1135 p = strchr(primary, '\n');
1136 if (p)
1137 *p = '\0';
1138
1139 if (!strlen(primary)) {
1140 netdev_dbg(bond->dev, "Setting primary slave to None\n");
1141 RCU_INIT_POINTER(bond->primary_slave, NULL);
1142 memset(bond->params.primary, 0, sizeof(bond->params.primary));
1143 bond_select_active_slave(bond);
1144 goto out;
1145 }
1146
1147 bond_for_each_slave(bond, slave, iter) {
1148 if (strncmp(slave->dev->name, primary, IFNAMSIZ) == 0) {
1149 slave_dbg(bond->dev, slave->dev, "Setting as primary slave\n");
1150 rcu_assign_pointer(bond->primary_slave, slave);
1151 strcpy(bond->params.primary, slave->dev->name);
1152 bond->force_primary = true;
1153 bond_select_active_slave(bond);
1154 goto out;
1155 }
1156 }
1157
1158 if (rtnl_dereference(bond->primary_slave)) {
1159 netdev_dbg(bond->dev, "Setting primary slave to None\n");
1160 RCU_INIT_POINTER(bond->primary_slave, NULL);
1161 bond_select_active_slave(bond);
1162 }
1163 strncpy(bond->params.primary, primary, IFNAMSIZ);
1164 bond->params.primary[IFNAMSIZ - 1] = 0;
1165
1166 netdev_dbg(bond->dev, "Recording %s as primary, but it has not been enslaved yet\n",
1167 primary);
1168
1169 out:
1170 unblock_netpoll_tx();
1171
1172 return 0;
1173 }
1174
1175 static int bond_option_primary_reselect_set(struct bonding *bond,
1176 const struct bond_opt_value *newval)
1177 {
1178 netdev_dbg(bond->dev, "Setting primary_reselect to %s (%llu)\n",
1179 newval->string, newval->value);
1180 bond->params.primary_reselect = newval->value;
1181
1182 block_netpoll_tx();
1183 bond_select_active_slave(bond);
1184 unblock_netpoll_tx();
1185
1186 return 0;
1187 }
1188
1189 static int bond_option_fail_over_mac_set(struct bonding *bond,
1190 const struct bond_opt_value *newval)
1191 {
1192 netdev_dbg(bond->dev, "Setting fail_over_mac to %s (%llu)\n",
1193 newval->string, newval->value);
1194 bond->params.fail_over_mac = newval->value;
1195
1196 return 0;
1197 }
1198
1199 static int bond_option_xmit_hash_policy_set(struct bonding *bond,
1200 const struct bond_opt_value *newval)
1201 {
1202 netdev_dbg(bond->dev, "Setting xmit hash policy to %s (%llu)\n",
1203 newval->string, newval->value);
1204 bond->params.xmit_policy = newval->value;
1205
1206 return 0;
1207 }
1208
1209 static int bond_option_resend_igmp_set(struct bonding *bond,
1210 const struct bond_opt_value *newval)
1211 {
1212 netdev_dbg(bond->dev, "Setting resend_igmp to %llu\n",
1213 newval->value);
1214 bond->params.resend_igmp = newval->value;
1215
1216 return 0;
1217 }
1218
1219 static int bond_option_num_peer_notif_set(struct bonding *bond,
1220 const struct bond_opt_value *newval)
1221 {
1222 bond->params.num_peer_notif = newval->value;
1223
1224 return 0;
1225 }
1226
1227 static int bond_option_all_slaves_active_set(struct bonding *bond,
1228 const struct bond_opt_value *newval)
1229 {
1230 struct list_head *iter;
1231 struct slave *slave;
1232
1233 if (newval->value == bond->params.all_slaves_active)
1234 return 0;
1235 bond->params.all_slaves_active = newval->value;
1236 bond_for_each_slave(bond, slave, iter) {
1237 if (!bond_is_active_slave(slave)) {
1238 if (newval->value)
1239 slave->inactive = 0;
1240 else
1241 slave->inactive = 1;
1242 }
1243 }
1244
1245 return 0;
1246 }
1247
1248 static int bond_option_min_links_set(struct bonding *bond,
1249 const struct bond_opt_value *newval)
1250 {
1251 netdev_dbg(bond->dev, "Setting min links value to %llu\n",
1252 newval->value);
1253 bond->params.min_links = newval->value;
1254 bond_set_carrier(bond);
1255
1256 return 0;
1257 }
1258
1259 static int bond_option_lp_interval_set(struct bonding *bond,
1260 const struct bond_opt_value *newval)
1261 {
1262 bond->params.lp_interval = newval->value;
1263
1264 return 0;
1265 }
1266
1267 static int bond_option_pps_set(struct bonding *bond,
1268 const struct bond_opt_value *newval)
1269 {
1270 netdev_dbg(bond->dev, "Setting packets per slave to %llu\n",
1271 newval->value);
1272 bond->params.packets_per_slave = newval->value;
1273 if (newval->value > 0) {
1274 bond->params.reciprocal_packets_per_slave =
1275 reciprocal_value(newval->value);
1276 } else {
1277
1278
1279
1280 bond->params.reciprocal_packets_per_slave =
1281 (struct reciprocal_value) { 0 };
1282 }
1283
1284 return 0;
1285 }
1286
1287 static int bond_option_lacp_rate_set(struct bonding *bond,
1288 const struct bond_opt_value *newval)
1289 {
1290 netdev_dbg(bond->dev, "Setting LACP rate to %s (%llu)\n",
1291 newval->string, newval->value);
1292 bond->params.lacp_fast = newval->value;
1293 bond_3ad_update_lacp_rate(bond);
1294
1295 return 0;
1296 }
1297
1298 static int bond_option_ad_select_set(struct bonding *bond,
1299 const struct bond_opt_value *newval)
1300 {
1301 netdev_dbg(bond->dev, "Setting ad_select to %s (%llu)\n",
1302 newval->string, newval->value);
1303 bond->params.ad_select = newval->value;
1304
1305 return 0;
1306 }
1307
1308 static int bond_option_queue_id_set(struct bonding *bond,
1309 const struct bond_opt_value *newval)
1310 {
1311 struct slave *slave, *update_slave;
1312 struct net_device *sdev;
1313 struct list_head *iter;
1314 char *delim;
1315 int ret = 0;
1316 u16 qid;
1317
1318
1319 delim = strchr(newval->string, ':');
1320 if (!delim)
1321 goto err_no_cmd;
1322
1323
1324
1325
1326 *delim = '\0';
1327 if (sscanf(++delim, "%hd\n", &qid) != 1)
1328 goto err_no_cmd;
1329
1330
1331 if (!dev_valid_name(newval->string) ||
1332 qid > bond->dev->real_num_tx_queues)
1333 goto err_no_cmd;
1334
1335
1336 sdev = __dev_get_by_name(dev_net(bond->dev), newval->string);
1337 if (!sdev)
1338 goto err_no_cmd;
1339
1340
1341 update_slave = NULL;
1342 bond_for_each_slave(bond, slave, iter) {
1343 if (sdev == slave->dev)
1344
1345
1346
1347 update_slave = slave;
1348 else if (qid && qid == slave->queue_id) {
1349 goto err_no_cmd;
1350 }
1351 }
1352
1353 if (!update_slave)
1354 goto err_no_cmd;
1355
1356
1357 update_slave->queue_id = qid;
1358
1359 out:
1360 return ret;
1361
1362 err_no_cmd:
1363 netdev_dbg(bond->dev, "invalid input for queue_id set\n");
1364 ret = -EPERM;
1365 goto out;
1366
1367 }
1368
1369 static int bond_option_slaves_set(struct bonding *bond,
1370 const struct bond_opt_value *newval)
1371 {
1372 char command[IFNAMSIZ + 1] = { 0, };
1373 struct net_device *dev;
1374 char *ifname;
1375 int ret;
1376
1377 sscanf(newval->string, "%16s", command);
1378 ifname = command + 1;
1379 if ((strlen(command) <= 1) ||
1380 (command[0] != '+' && command[0] != '-') ||
1381 !dev_valid_name(ifname))
1382 goto err_no_cmd;
1383
1384 dev = __dev_get_by_name(dev_net(bond->dev), ifname);
1385 if (!dev) {
1386 netdev_dbg(bond->dev, "interface %s does not exist!\n",
1387 ifname);
1388 ret = -ENODEV;
1389 goto out;
1390 }
1391
1392 switch (command[0]) {
1393 case '+':
1394 slave_dbg(bond->dev, dev, "Enslaving interface\n");
1395 ret = bond_enslave(bond->dev, dev, NULL);
1396 break;
1397
1398 case '-':
1399 slave_dbg(bond->dev, dev, "Releasing interface\n");
1400 ret = bond_release(bond->dev, dev);
1401 if (!ret)
1402 netdev_update_lockdep_key(dev);
1403 break;
1404
1405 default:
1406
1407 goto err_no_cmd;
1408 }
1409
1410 out:
1411 return ret;
1412
1413 err_no_cmd:
1414 netdev_err(bond->dev, "no command found in slaves file - use +ifname or -ifname\n");
1415 ret = -EPERM;
1416 goto out;
1417 }
1418
1419 static int bond_option_tlb_dynamic_lb_set(struct bonding *bond,
1420 const struct bond_opt_value *newval)
1421 {
1422 netdev_dbg(bond->dev, "Setting dynamic-lb to %s (%llu)\n",
1423 newval->string, newval->value);
1424 bond->params.tlb_dynamic_lb = newval->value;
1425
1426 return 0;
1427 }
1428
1429 static int bond_option_ad_actor_sys_prio_set(struct bonding *bond,
1430 const struct bond_opt_value *newval)
1431 {
1432 netdev_dbg(bond->dev, "Setting ad_actor_sys_prio to %llu\n",
1433 newval->value);
1434
1435 bond->params.ad_actor_sys_prio = newval->value;
1436 bond_3ad_update_ad_actor_settings(bond);
1437
1438 return 0;
1439 }
1440
1441 static int bond_option_ad_actor_system_set(struct bonding *bond,
1442 const struct bond_opt_value *newval)
1443 {
1444 u8 macaddr[ETH_ALEN];
1445 u8 *mac;
1446
1447 if (newval->string) {
1448 if (!mac_pton(newval->string, macaddr))
1449 goto err;
1450 mac = macaddr;
1451 } else {
1452 mac = (u8 *)&newval->value;
1453 }
1454
1455 if (!is_valid_ether_addr(mac))
1456 goto err;
1457
1458 netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n", mac);
1459 ether_addr_copy(bond->params.ad_actor_system, mac);
1460 bond_3ad_update_ad_actor_settings(bond);
1461
1462 return 0;
1463
1464 err:
1465 netdev_err(bond->dev, "Invalid ad_actor_system MAC address.\n");
1466 return -EINVAL;
1467 }
1468
1469 static int bond_option_ad_user_port_key_set(struct bonding *bond,
1470 const struct bond_opt_value *newval)
1471 {
1472 netdev_dbg(bond->dev, "Setting ad_user_port_key to %llu\n",
1473 newval->value);
1474
1475 bond->params.ad_user_port_key = newval->value;
1476 return 0;
1477 }