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b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
adf8d3ff | 15 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
b76cdba9 MW |
16 | * |
17 | * The full GNU General Public License is included in this distribution in the | |
18 | * file called LICENSE. | |
19 | * | |
b76cdba9 | 20 | */ |
a4aee5c8 JP |
21 | |
22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
23 | ||
b76cdba9 MW |
24 | #include <linux/kernel.h> |
25 | #include <linux/module.h> | |
b76cdba9 | 26 | #include <linux/device.h> |
d43c36dc | 27 | #include <linux/sched.h> |
b76cdba9 MW |
28 | #include <linux/fs.h> |
29 | #include <linux/types.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/inetdevice.h> | |
33 | #include <linux/in.h> | |
34 | #include <linux/sysfs.h> | |
b76cdba9 MW |
35 | #include <linux/ctype.h> |
36 | #include <linux/inet.h> | |
37 | #include <linux/rtnetlink.h> | |
5c5129b5 | 38 | #include <linux/etherdevice.h> |
881d966b | 39 | #include <net/net_namespace.h> |
ec87fd3b EB |
40 | #include <net/netns/generic.h> |
41 | #include <linux/nsproxy.h> | |
b76cdba9 | 42 | |
b76cdba9 | 43 | #include "bonding.h" |
5a03cdb7 | 44 | |
3d632c3f | 45 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 46 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 47 | |
b76cdba9 MW |
48 | /* |
49 | * "show" function for the bond_masters attribute. | |
50 | * The class parameter is ignored. | |
51 | */ | |
28812fe1 AK |
52 | static ssize_t bonding_show_bonds(struct class *cls, |
53 | struct class_attribute *attr, | |
54 | char *buf) | |
b76cdba9 | 55 | { |
4c22400a EB |
56 | struct bond_net *bn = |
57 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
58 | int res = 0; |
59 | struct bonding *bond; | |
60 | ||
7e083840 | 61 | rtnl_lock(); |
b76cdba9 | 62 | |
ec87fd3b | 63 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
64 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
65 | /* not enough space for another interface name */ | |
66 | if ((PAGE_SIZE - res) > 10) | |
67 | res = PAGE_SIZE - 10; | |
b8843665 | 68 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
69 | break; |
70 | } | |
b8843665 | 71 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 72 | } |
1dcdcd69 WF |
73 | if (res) |
74 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
75 | |
76 | rtnl_unlock(); | |
b76cdba9 MW |
77 | return res; |
78 | } | |
79 | ||
4c22400a | 80 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
81 | { |
82 | struct bonding *bond; | |
83 | ||
ec87fd3b | 84 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
85 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
86 | return bond->dev; | |
87 | } | |
88 | return NULL; | |
89 | } | |
90 | ||
b76cdba9 MW |
91 | /* |
92 | * "store" function for the bond_masters attribute. This is what | |
93 | * creates and deletes entire bonds. | |
94 | * | |
95 | * The class parameter is ignored. | |
96 | * | |
97 | */ | |
98 | ||
3d632c3f | 99 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 100 | struct class_attribute *attr, |
3d632c3f | 101 | const char *buffer, size_t count) |
b76cdba9 | 102 | { |
4c22400a EB |
103 | struct bond_net *bn = |
104 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
105 | char command[IFNAMSIZ + 1] = {0, }; |
106 | char *ifname; | |
027ea041 | 107 | int rv, res = count; |
b76cdba9 | 108 | |
b76cdba9 MW |
109 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
110 | ifname = command + 1; | |
111 | if ((strlen(command) <= 1) || | |
112 | !dev_valid_name(ifname)) | |
113 | goto err_no_cmd; | |
114 | ||
115 | if (command[0] == '+') { | |
a4aee5c8 | 116 | pr_info("%s is being created...\n", ifname); |
4c22400a | 117 | rv = bond_create(bn->net, ifname); |
027ea041 | 118 | if (rv) { |
5f86cad1 PO |
119 | if (rv == -EEXIST) |
120 | pr_info("%s already exists.\n", ifname); | |
121 | else | |
122 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 123 | res = rv; |
b76cdba9 | 124 | } |
373500db SH |
125 | } else if (command[0] == '-') { |
126 | struct net_device *bond_dev; | |
b76cdba9 | 127 | |
027ea041 | 128 | rtnl_lock(); |
4c22400a | 129 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 130 | if (bond_dev) { |
a4aee5c8 | 131 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
132 | unregister_netdevice(bond_dev); |
133 | } else { | |
a4aee5c8 | 134 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
135 | res = -ENODEV; |
136 | } | |
137 | rtnl_unlock(); | |
138 | } else | |
139 | goto err_no_cmd; | |
027ea041 | 140 | |
373500db SH |
141 | /* Always return either count or an error. If you return 0, you'll |
142 | * get called forever, which is bad. | |
143 | */ | |
144 | return res; | |
b76cdba9 MW |
145 | |
146 | err_no_cmd: | |
a4aee5c8 | 147 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 148 | return -EPERM; |
b76cdba9 | 149 | } |
373500db | 150 | |
b76cdba9 | 151 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
152 | static const struct class_attribute class_attr_bonding_masters = { |
153 | .attr = { | |
154 | .name = "bonding_masters", | |
155 | .mode = S_IWUSR | S_IRUGO, | |
156 | }, | |
157 | .show = bonding_show_bonds, | |
158 | .store = bonding_store_bonds, | |
4c22400a | 159 | }; |
b76cdba9 | 160 | |
b76cdba9 MW |
161 | /* |
162 | * Show the slaves in the current bond. | |
163 | */ | |
43cb76d9 GKH |
164 | static ssize_t bonding_show_slaves(struct device *d, |
165 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 166 | { |
43cb76d9 | 167 | struct bonding *bond = to_bond(d); |
9caff1e7 | 168 | struct list_head *iter; |
dec1e90e | 169 | struct slave *slave; |
170 | int res = 0; | |
b76cdba9 | 171 | |
4d1ae5fb | 172 | if (!rtnl_trylock()) |
173 | return restart_syscall(); | |
174 | ||
9caff1e7 | 175 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
176 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
177 | /* not enough space for another interface name */ | |
178 | if ((PAGE_SIZE - res) > 10) | |
179 | res = PAGE_SIZE - 10; | |
7bd46508 | 180 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
181 | break; |
182 | } | |
183 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
184 | } | |
4d1ae5fb | 185 | |
186 | rtnl_unlock(); | |
187 | ||
1dcdcd69 WF |
188 | if (res) |
189 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 190 | |
b76cdba9 MW |
191 | return res; |
192 | } | |
193 | ||
194 | /* | |
d6641ccf | 195 | * Set the slaves in the current bond. |
f9f3545e JP |
196 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
197 | * All hard work should be done there. | |
b76cdba9 | 198 | */ |
43cb76d9 GKH |
199 | static ssize_t bonding_store_slaves(struct device *d, |
200 | struct device_attribute *attr, | |
201 | const char *buffer, size_t count) | |
b76cdba9 MW |
202 | { |
203 | char command[IFNAMSIZ + 1] = { 0, }; | |
204 | char *ifname; | |
f9f3545e JP |
205 | int res, ret = count; |
206 | struct net_device *dev; | |
43cb76d9 | 207 | struct bonding *bond = to_bond(d); |
b76cdba9 | 208 | |
496a60cd EB |
209 | if (!rtnl_trylock()) |
210 | return restart_syscall(); | |
027ea041 | 211 | |
b76cdba9 MW |
212 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
213 | ifname = command + 1; | |
214 | if ((strlen(command) <= 1) || | |
215 | !dev_valid_name(ifname)) | |
216 | goto err_no_cmd; | |
217 | ||
f9f3545e JP |
218 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
219 | if (!dev) { | |
220 | pr_info("%s: Interface %s does not exist!\n", | |
221 | bond->dev->name, ifname); | |
222 | ret = -ENODEV; | |
223 | goto out; | |
224 | } | |
b76cdba9 | 225 | |
f9f3545e JP |
226 | switch (command[0]) { |
227 | case '+': | |
228 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 229 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 230 | break; |
3d632c3f | 231 | |
f9f3545e JP |
232 | case '-': |
233 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
234 | res = bond_release(bond->dev, dev); | |
235 | break; | |
b76cdba9 | 236 | |
f9f3545e JP |
237 | default: |
238 | goto err_no_cmd; | |
b76cdba9 MW |
239 | } |
240 | ||
f9f3545e JP |
241 | if (res) |
242 | ret = res; | |
243 | goto out; | |
244 | ||
b76cdba9 | 245 | err_no_cmd: |
a4aee5c8 JP |
246 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
247 | bond->dev->name); | |
b76cdba9 MW |
248 | ret = -EPERM; |
249 | ||
250 | out: | |
027ea041 | 251 | rtnl_unlock(); |
b76cdba9 MW |
252 | return ret; |
253 | } | |
254 | ||
3d632c3f SH |
255 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
256 | bonding_store_slaves); | |
b76cdba9 MW |
257 | |
258 | /* | |
259 | * Show and set the bonding mode. The bond interface must be down to | |
260 | * change the mode. | |
261 | */ | |
43cb76d9 GKH |
262 | static ssize_t bonding_show_mode(struct device *d, |
263 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 264 | { |
43cb76d9 | 265 | struct bonding *bond = to_bond(d); |
2b3798d5 | 266 | struct bond_opt_value *val; |
b76cdba9 | 267 | |
2b3798d5 NA |
268 | val = bond_opt_get_val(BOND_OPT_MODE, bond->params.mode); |
269 | ||
270 | return sprintf(buf, "%s %d\n", val->string, bond->params.mode); | |
b76cdba9 MW |
271 | } |
272 | ||
43cb76d9 GKH |
273 | static ssize_t bonding_store_mode(struct device *d, |
274 | struct device_attribute *attr, | |
275 | const char *buf, size_t count) | |
b76cdba9 | 276 | { |
43cb76d9 | 277 | struct bonding *bond = to_bond(d); |
2b3798d5 | 278 | int ret; |
b76cdba9 | 279 | |
2b3798d5 NA |
280 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MODE, (char *)buf); |
281 | if (!ret) | |
72be35fe | 282 | ret = count; |
8f903c70 | 283 | |
b76cdba9 MW |
284 | return ret; |
285 | } | |
3d632c3f SH |
286 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
287 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
288 | |
289 | /* | |
3d632c3f | 290 | * Show and set the bonding transmit hash method. |
b76cdba9 | 291 | */ |
43cb76d9 GKH |
292 | static ssize_t bonding_show_xmit_hash(struct device *d, |
293 | struct device_attribute *attr, | |
294 | char *buf) | |
b76cdba9 | 295 | { |
43cb76d9 | 296 | struct bonding *bond = to_bond(d); |
b76cdba9 | 297 | |
8e4b9329 WF |
298 | return sprintf(buf, "%s %d\n", |
299 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
300 | bond->params.xmit_policy); | |
b76cdba9 MW |
301 | } |
302 | ||
43cb76d9 GKH |
303 | static ssize_t bonding_store_xmit_hash(struct device *d, |
304 | struct device_attribute *attr, | |
305 | const char *buf, size_t count) | |
b76cdba9 | 306 | { |
f70161c6 | 307 | int new_value, ret; |
43cb76d9 | 308 | struct bonding *bond = to_bond(d); |
b76cdba9 | 309 | |
ece95f7f | 310 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 311 | if (new_value < 0) { |
a4aee5c8 | 312 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
313 | bond->dev->name, |
314 | (int)strlen(buf) - 1, buf); | |
f70161c6 | 315 | return -EINVAL; |
b76cdba9 | 316 | } |
53edee2c | 317 | |
f70161c6 | 318 | if (!rtnl_trylock()) |
319 | return restart_syscall(); | |
320 | ||
321 | ret = bond_option_xmit_hash_policy_set(bond, new_value); | |
322 | if (!ret) | |
323 | ret = count; | |
324 | ||
325 | rtnl_unlock(); | |
b76cdba9 MW |
326 | return ret; |
327 | } | |
3d632c3f SH |
328 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
329 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 330 | |
f5b2b966 JV |
331 | /* |
332 | * Show and set arp_validate. | |
333 | */ | |
43cb76d9 GKH |
334 | static ssize_t bonding_show_arp_validate(struct device *d, |
335 | struct device_attribute *attr, | |
336 | char *buf) | |
f5b2b966 | 337 | { |
43cb76d9 | 338 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
339 | |
340 | return sprintf(buf, "%s %d\n", | |
341 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 342 | bond->params.arp_validate); |
f5b2b966 JV |
343 | } |
344 | ||
43cb76d9 GKH |
345 | static ssize_t bonding_store_arp_validate(struct device *d, |
346 | struct device_attribute *attr, | |
347 | const char *buf, size_t count) | |
f5b2b966 | 348 | { |
43cb76d9 | 349 | struct bonding *bond = to_bond(d); |
29c49482 | 350 | int new_value, ret; |
f5b2b966 | 351 | |
ece95f7f | 352 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 353 | if (new_value < 0) { |
a4aee5c8 | 354 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 355 | bond->dev->name, buf); |
29c49482 | 356 | return -EINVAL; |
5bb9e0b5 | 357 | } |
29c49482 | 358 | if (!rtnl_trylock()) |
359 | return restart_syscall(); | |
360 | ||
361 | ret = bond_option_arp_validate_set(bond, new_value); | |
362 | if (!ret) | |
363 | ret = count; | |
364 | ||
5c5038dc | 365 | rtnl_unlock(); |
f5b2b966 | 366 | |
5c5038dc | 367 | return ret; |
f5b2b966 JV |
368 | } |
369 | ||
3d632c3f SH |
370 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
371 | bonding_store_arp_validate); | |
8599b52e VF |
372 | /* |
373 | * Show and set arp_all_targets. | |
374 | */ | |
375 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
376 | struct device_attribute *attr, | |
377 | char *buf) | |
378 | { | |
379 | struct bonding *bond = to_bond(d); | |
380 | int value = bond->params.arp_all_targets; | |
381 | ||
382 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
383 | value); | |
384 | } | |
385 | ||
386 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
387 | struct device_attribute *attr, | |
388 | const char *buf, size_t count) | |
389 | { | |
390 | struct bonding *bond = to_bond(d); | |
d5c84254 | 391 | int new_value, ret; |
8599b52e VF |
392 | |
393 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
394 | if (new_value < 0) { | |
395 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
396 | bond->dev->name, buf); | |
397 | return -EINVAL; | |
398 | } | |
8599b52e | 399 | |
d5c84254 | 400 | if (!rtnl_trylock()) |
401 | return restart_syscall(); | |
8599b52e | 402 | |
d5c84254 | 403 | ret = bond_option_arp_all_targets_set(bond, new_value); |
404 | if (!ret) | |
405 | ret = count; | |
406 | ||
407 | rtnl_unlock(); | |
408 | ||
409 | return ret; | |
8599b52e VF |
410 | } |
411 | ||
412 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
413 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 414 | |
dd957c57 JV |
415 | /* |
416 | * Show and store fail_over_mac. User only allowed to change the | |
417 | * value when there are no slaves. | |
418 | */ | |
3d632c3f SH |
419 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
420 | struct device_attribute *attr, | |
421 | char *buf) | |
dd957c57 JV |
422 | { |
423 | struct bonding *bond = to_bond(d); | |
424 | ||
3915c1e8 JV |
425 | return sprintf(buf, "%s %d\n", |
426 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
427 | bond->params.fail_over_mac); | |
dd957c57 JV |
428 | } |
429 | ||
3d632c3f SH |
430 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
431 | struct device_attribute *attr, | |
432 | const char *buf, size_t count) | |
dd957c57 | 433 | { |
89901972 | 434 | int new_value, ret; |
dd957c57 JV |
435 | struct bonding *bond = to_bond(d); |
436 | ||
3915c1e8 JV |
437 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
438 | if (new_value < 0) { | |
a4aee5c8 | 439 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 440 | bond->dev->name, buf); |
89901972 | 441 | return -EINVAL; |
dd957c57 JV |
442 | } |
443 | ||
89901972 | 444 | if (!rtnl_trylock()) |
445 | return restart_syscall(); | |
446 | ||
447 | ret = bond_option_fail_over_mac_set(bond, new_value); | |
448 | if (!ret) | |
449 | ret = count; | |
3915c1e8 | 450 | |
9402b746 | 451 | rtnl_unlock(); |
452 | return ret; | |
dd957c57 JV |
453 | } |
454 | ||
3d632c3f SH |
455 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
456 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 457 | |
b76cdba9 MW |
458 | /* |
459 | * Show and set the arp timer interval. There are two tricky bits | |
460 | * here. First, if ARP monitoring is activated, then we must disable | |
461 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
462 | * start it. | |
463 | */ | |
43cb76d9 GKH |
464 | static ssize_t bonding_show_arp_interval(struct device *d, |
465 | struct device_attribute *attr, | |
466 | char *buf) | |
b76cdba9 | 467 | { |
43cb76d9 | 468 | struct bonding *bond = to_bond(d); |
b76cdba9 | 469 | |
7bd46508 | 470 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
471 | } |
472 | ||
43cb76d9 GKH |
473 | static ssize_t bonding_store_arp_interval(struct device *d, |
474 | struct device_attribute *attr, | |
475 | const char *buf, size_t count) | |
b76cdba9 | 476 | { |
43cb76d9 | 477 | struct bonding *bond = to_bond(d); |
06151dbc | 478 | int new_value, ret; |
b76cdba9 MW |
479 | |
480 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 481 | pr_err("%s: no arp_interval value specified.\n", |
06151dbc | 482 | bond->dev->name); |
483 | return -EINVAL; | |
b76cdba9 | 484 | } |
06151dbc | 485 | |
486 | if (!rtnl_trylock()) | |
487 | return restart_syscall(); | |
488 | ||
489 | ret = bond_option_arp_interval_set(bond, new_value); | |
490 | if (!ret) | |
491 | ret = count; | |
492 | ||
fbb0c41b | 493 | rtnl_unlock(); |
b76cdba9 MW |
494 | return ret; |
495 | } | |
3d632c3f SH |
496 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
497 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
498 | |
499 | /* | |
500 | * Show and set the arp targets. | |
501 | */ | |
43cb76d9 GKH |
502 | static ssize_t bonding_show_arp_targets(struct device *d, |
503 | struct device_attribute *attr, | |
504 | char *buf) | |
b76cdba9 MW |
505 | { |
506 | int i, res = 0; | |
43cb76d9 | 507 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
508 | |
509 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
510 | if (bond->params.arp_targets[i]) | |
63779436 HH |
511 | res += sprintf(buf + res, "%pI4 ", |
512 | &bond->params.arp_targets[i]); | |
b76cdba9 | 513 | } |
1dcdcd69 WF |
514 | if (res) |
515 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
516 | return res; |
517 | } | |
518 | ||
43cb76d9 GKH |
519 | static ssize_t bonding_store_arp_targets(struct device *d, |
520 | struct device_attribute *attr, | |
521 | const char *buf, size_t count) | |
b76cdba9 | 522 | { |
43cb76d9 | 523 | struct bonding *bond = to_bond(d); |
7f28fa10 | 524 | __be32 target; |
525 | int ret = -EPERM; | |
4d1ae5fb | 526 | |
7f28fa10 | 527 | if (!in4_pton(buf + 1, -1, (u8 *)&target, -1, NULL)) { |
528 | pr_err("%s: invalid ARP target %pI4 specified\n", | |
529 | bond->dev->name, &target); | |
530 | return -EPERM; | |
f9de11a1 | 531 | } |
8599b52e | 532 | |
7f28fa10 | 533 | if (!rtnl_trylock()) |
534 | return restart_syscall(); | |
8599b52e | 535 | |
7f28fa10 | 536 | if (buf[0] == '+') |
537 | ret = bond_option_arp_ip_target_add(bond, target); | |
538 | else if (buf[0] == '-') | |
539 | ret = bond_option_arp_ip_target_rem(bond, target); | |
540 | else | |
a4aee5c8 JP |
541 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
542 | bond->dev->name); | |
b76cdba9 | 543 | |
7f28fa10 | 544 | if (!ret) |
545 | ret = count; | |
546 | ||
4d1ae5fb | 547 | rtnl_unlock(); |
b76cdba9 MW |
548 | return ret; |
549 | } | |
43cb76d9 | 550 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
551 | |
552 | /* | |
553 | * Show and set the up and down delays. These must be multiples of the | |
554 | * MII monitoring value, and are stored internally as the multiplier. | |
555 | * Thus, we must translate to MS for the real world. | |
556 | */ | |
43cb76d9 GKH |
557 | static ssize_t bonding_show_downdelay(struct device *d, |
558 | struct device_attribute *attr, | |
559 | char *buf) | |
b76cdba9 | 560 | { |
43cb76d9 | 561 | struct bonding *bond = to_bond(d); |
b76cdba9 | 562 | |
7bd46508 | 563 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
564 | } |
565 | ||
43cb76d9 GKH |
566 | static ssize_t bonding_store_downdelay(struct device *d, |
567 | struct device_attribute *attr, | |
568 | const char *buf, size_t count) | |
b76cdba9 | 569 | { |
c7461f9b | 570 | int new_value, ret; |
43cb76d9 | 571 | struct bonding *bond = to_bond(d); |
b76cdba9 | 572 | |
b76cdba9 | 573 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 574 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
c7461f9b | 575 | return -EINVAL; |
b76cdba9 | 576 | } |
b76cdba9 | 577 | |
c7461f9b | 578 | if (!rtnl_trylock()) |
579 | return restart_syscall(); | |
580 | ||
581 | ret = bond_option_downdelay_set(bond, new_value); | |
582 | if (!ret) | |
583 | ret = count; | |
b76cdba9 | 584 | |
b869ccfa | 585 | rtnl_unlock(); |
b76cdba9 MW |
586 | return ret; |
587 | } | |
3d632c3f SH |
588 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
589 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 590 | |
43cb76d9 GKH |
591 | static ssize_t bonding_show_updelay(struct device *d, |
592 | struct device_attribute *attr, | |
593 | char *buf) | |
b76cdba9 | 594 | { |
43cb76d9 | 595 | struct bonding *bond = to_bond(d); |
b76cdba9 | 596 | |
7bd46508 | 597 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
598 | |
599 | } | |
600 | ||
43cb76d9 GKH |
601 | static ssize_t bonding_store_updelay(struct device *d, |
602 | struct device_attribute *attr, | |
603 | const char *buf, size_t count) | |
b76cdba9 | 604 | { |
25852e29 | 605 | int new_value, ret; |
43cb76d9 | 606 | struct bonding *bond = to_bond(d); |
b76cdba9 | 607 | |
b76cdba9 | 608 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 609 | pr_err("%s: no up delay value specified.\n", |
25852e29 | 610 | bond->dev->name); |
611 | return -EINVAL; | |
b76cdba9 MW |
612 | } |
613 | ||
25852e29 | 614 | if (!rtnl_trylock()) |
615 | return restart_syscall(); | |
616 | ||
617 | ret = bond_option_updelay_set(bond, new_value); | |
618 | if (!ret) | |
619 | ret = count; | |
620 | ||
b869ccfa | 621 | rtnl_unlock(); |
b76cdba9 MW |
622 | return ret; |
623 | } | |
3d632c3f SH |
624 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
625 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
626 | |
627 | /* | |
628 | * Show and set the LACP interval. Interface must be down, and the mode | |
629 | * must be set to 802.3ad mode. | |
630 | */ | |
43cb76d9 GKH |
631 | static ssize_t bonding_show_lacp(struct device *d, |
632 | struct device_attribute *attr, | |
633 | char *buf) | |
b76cdba9 | 634 | { |
43cb76d9 | 635 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
636 | |
637 | return sprintf(buf, "%s %d\n", | |
638 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 639 | bond->params.lacp_fast); |
b76cdba9 MW |
640 | } |
641 | ||
43cb76d9 GKH |
642 | static ssize_t bonding_store_lacp(struct device *d, |
643 | struct device_attribute *attr, | |
644 | const char *buf, size_t count) | |
b76cdba9 | 645 | { |
43cb76d9 | 646 | struct bonding *bond = to_bond(d); |
998e40bb | 647 | int new_value, ret; |
b76cdba9 | 648 | |
ece95f7f | 649 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
998e40bb | 650 | if (new_value < 0) { |
a4aee5c8 | 651 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 652 | bond->dev->name, (int)strlen(buf) - 1, buf); |
998e40bb | 653 | return -EINVAL; |
b76cdba9 | 654 | } |
c509316b | 655 | |
998e40bb | 656 | if (!rtnl_trylock()) |
657 | return restart_syscall(); | |
658 | ||
659 | ret = bond_option_lacp_rate_set(bond, new_value); | |
660 | if (!ret) | |
661 | ret = count; | |
662 | ||
663 | rtnl_unlock(); | |
b76cdba9 MW |
664 | return ret; |
665 | } | |
3d632c3f SH |
666 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
667 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 668 | |
655f8919 | 669 | static ssize_t bonding_show_min_links(struct device *d, |
670 | struct device_attribute *attr, | |
671 | char *buf) | |
672 | { | |
673 | struct bonding *bond = to_bond(d); | |
674 | ||
675 | return sprintf(buf, "%d\n", bond->params.min_links); | |
676 | } | |
677 | ||
678 | static ssize_t bonding_store_min_links(struct device *d, | |
679 | struct device_attribute *attr, | |
680 | const char *buf, size_t count) | |
681 | { | |
682 | struct bonding *bond = to_bond(d); | |
683 | int ret; | |
684 | unsigned int new_value; | |
685 | ||
686 | ret = kstrtouint(buf, 0, &new_value); | |
687 | if (ret < 0) { | |
688 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
689 | bond->dev->name, buf); | |
690 | return ret; | |
691 | } | |
692 | ||
7d101008 | 693 | if (!rtnl_trylock()) |
694 | return restart_syscall(); | |
695 | ||
696 | ret = bond_option_min_links_set(bond, new_value); | |
697 | if (!ret) | |
698 | ret = count; | |
699 | ||
700 | rtnl_unlock(); | |
701 | return ret; | |
655f8919 | 702 | } |
703 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
704 | bonding_show_min_links, bonding_store_min_links); | |
705 | ||
fd989c83 JV |
706 | static ssize_t bonding_show_ad_select(struct device *d, |
707 | struct device_attribute *attr, | |
708 | char *buf) | |
709 | { | |
710 | struct bonding *bond = to_bond(d); | |
711 | ||
712 | return sprintf(buf, "%s %d\n", | |
713 | ad_select_tbl[bond->params.ad_select].modename, | |
714 | bond->params.ad_select); | |
715 | } | |
716 | ||
717 | ||
718 | static ssize_t bonding_store_ad_select(struct device *d, | |
719 | struct device_attribute *attr, | |
720 | const char *buf, size_t count) | |
721 | { | |
ec029fac | 722 | int new_value, ret; |
fd989c83 JV |
723 | struct bonding *bond = to_bond(d); |
724 | ||
fd989c83 | 725 | new_value = bond_parse_parm(buf, ad_select_tbl); |
ec029fac | 726 | if (new_value < 0) { |
a4aee5c8 | 727 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 | 728 | bond->dev->name, (int)strlen(buf) - 1, buf); |
ec029fac | 729 | return -EINVAL; |
fd989c83 | 730 | } |
ec029fac | 731 | |
732 | if (!rtnl_trylock()) | |
733 | return restart_syscall(); | |
734 | ||
735 | ret = bond_option_ad_select_set(bond, new_value); | |
736 | if (!ret) | |
737 | ret = count; | |
738 | ||
739 | rtnl_unlock(); | |
fd989c83 JV |
740 | return ret; |
741 | } | |
3d632c3f SH |
742 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
743 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 744 | |
ad246c99 BH |
745 | /* |
746 | * Show and set the number of peer notifications to send after a failover event. | |
747 | */ | |
748 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
749 | struct device_attribute *attr, | |
750 | char *buf) | |
751 | { | |
752 | struct bonding *bond = to_bond(d); | |
753 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
754 | } | |
755 | ||
756 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
757 | struct device_attribute *attr, | |
758 | const char *buf, size_t count) | |
759 | { | |
760 | struct bonding *bond = to_bond(d); | |
2c9839c1 | 761 | u8 new_value; |
762 | int ret; | |
763 | ||
764 | ret = kstrtou8(buf, 10, &new_value); | |
0b23810d | 765 | if (ret) { |
2c9839c1 | 766 | pr_err("%s: invalid value %s specified.\n", |
767 | bond->dev->name, buf); | |
768 | return ret; | |
769 | } | |
770 | ||
771 | if (!rtnl_trylock()) | |
772 | return restart_syscall(); | |
773 | ||
774 | ret = bond_option_num_peer_notif_set(bond, new_value); | |
775 | if (!ret) | |
776 | ret = count; | |
777 | ||
778 | rtnl_unlock(); | |
779 | return ret; | |
ad246c99 BH |
780 | } |
781 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
782 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
783 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
784 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
785 | ||
b76cdba9 MW |
786 | /* |
787 | * Show and set the MII monitor interval. There are two tricky bits | |
788 | * here. First, if MII monitoring is activated, then we must disable | |
789 | * ARP monitoring. Second, if the timer isn't running, we must | |
790 | * start it. | |
791 | */ | |
43cb76d9 GKH |
792 | static ssize_t bonding_show_miimon(struct device *d, |
793 | struct device_attribute *attr, | |
794 | char *buf) | |
b76cdba9 | 795 | { |
43cb76d9 | 796 | struct bonding *bond = to_bond(d); |
b76cdba9 | 797 | |
7bd46508 | 798 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
799 | } |
800 | ||
43cb76d9 GKH |
801 | static ssize_t bonding_store_miimon(struct device *d, |
802 | struct device_attribute *attr, | |
803 | const char *buf, size_t count) | |
b76cdba9 | 804 | { |
eecdaa6e | 805 | int new_value, ret; |
43cb76d9 | 806 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
807 | |
808 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 809 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 | 810 | bond->dev->name); |
eecdaa6e | 811 | return -EINVAL; |
b76cdba9 | 812 | } |
eecdaa6e | 813 | |
814 | if (!rtnl_trylock()) | |
815 | return restart_syscall(); | |
816 | ||
817 | ret = bond_option_miimon_set(bond, new_value); | |
818 | if (!ret) | |
819 | ret = count; | |
820 | ||
fbb0c41b | 821 | rtnl_unlock(); |
b76cdba9 MW |
822 | return ret; |
823 | } | |
3d632c3f SH |
824 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
825 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
826 | |
827 | /* | |
828 | * Show and set the primary slave. The store function is much | |
829 | * simpler than bonding_store_slaves function because it only needs to | |
830 | * handle one interface name. | |
831 | * The bond must be a mode that supports a primary for this be | |
832 | * set. | |
833 | */ | |
43cb76d9 GKH |
834 | static ssize_t bonding_show_primary(struct device *d, |
835 | struct device_attribute *attr, | |
836 | char *buf) | |
b76cdba9 MW |
837 | { |
838 | int count = 0; | |
43cb76d9 | 839 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
840 | |
841 | if (bond->primary_slave) | |
7bd46508 | 842 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
843 | |
844 | return count; | |
845 | } | |
846 | ||
43cb76d9 GKH |
847 | static ssize_t bonding_store_primary(struct device *d, |
848 | struct device_attribute *attr, | |
849 | const char *buf, size_t count) | |
b76cdba9 | 850 | { |
43cb76d9 | 851 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 852 | char ifname[IFNAMSIZ]; |
0a98a0d1 | 853 | int ret; |
b76cdba9 | 854 | |
eb6e98a1 | 855 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
0a98a0d1 | 856 | if (ifname[0] == '\n') |
857 | ifname[0] = '\0'; | |
b76cdba9 | 858 | |
0a98a0d1 | 859 | if (!rtnl_trylock()) |
860 | return restart_syscall(); | |
f4bb2e9c | 861 | |
0a98a0d1 | 862 | ret = bond_option_primary_set(bond, ifname); |
863 | if (!ret) | |
864 | ret = count; | |
8a93664d | 865 | |
6603a6f2 | 866 | rtnl_unlock(); |
0a98a0d1 | 867 | return ret; |
b76cdba9 | 868 | } |
3d632c3f SH |
869 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
870 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 871 | |
a549952a JP |
872 | /* |
873 | * Show and set the primary_reselect flag. | |
874 | */ | |
875 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
876 | struct device_attribute *attr, | |
877 | char *buf) | |
878 | { | |
879 | struct bonding *bond = to_bond(d); | |
880 | ||
881 | return sprintf(buf, "%s %d\n", | |
882 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
883 | bond->params.primary_reselect); | |
884 | } | |
885 | ||
886 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
887 | struct device_attribute *attr, | |
888 | const char *buf, size_t count) | |
889 | { | |
8a41ae44 | 890 | int new_value, ret; |
a549952a JP |
891 | struct bonding *bond = to_bond(d); |
892 | ||
a549952a JP |
893 | new_value = bond_parse_parm(buf, pri_reselect_tbl); |
894 | if (new_value < 0) { | |
a4aee5c8 | 895 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
896 | bond->dev->name, |
897 | (int) strlen(buf) - 1, buf); | |
8a41ae44 | 898 | return -EINVAL; |
a549952a JP |
899 | } |
900 | ||
8a41ae44 | 901 | if (!rtnl_trylock()) |
902 | return restart_syscall(); | |
903 | ||
904 | ret = bond_option_primary_reselect_set(bond, new_value); | |
905 | if (!ret) | |
906 | ret = count; | |
a549952a | 907 | |
a549952a JP |
908 | rtnl_unlock(); |
909 | return ret; | |
910 | } | |
911 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
912 | bonding_show_primary_reselect, | |
913 | bonding_store_primary_reselect); | |
914 | ||
b76cdba9 MW |
915 | /* |
916 | * Show and set the use_carrier flag. | |
917 | */ | |
43cb76d9 GKH |
918 | static ssize_t bonding_show_carrier(struct device *d, |
919 | struct device_attribute *attr, | |
920 | char *buf) | |
b76cdba9 | 921 | { |
43cb76d9 | 922 | struct bonding *bond = to_bond(d); |
b76cdba9 | 923 | |
7bd46508 | 924 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
925 | } |
926 | ||
43cb76d9 GKH |
927 | static ssize_t bonding_store_carrier(struct device *d, |
928 | struct device_attribute *attr, | |
929 | const char *buf, size_t count) | |
b76cdba9 | 930 | { |
9f53e14e | 931 | int new_value, ret; |
43cb76d9 | 932 | struct bonding *bond = to_bond(d); |
b76cdba9 | 933 | |
b76cdba9 | 934 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 935 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 | 936 | bond->dev->name); |
9f53e14e | 937 | return -EINVAL; |
b76cdba9 | 938 | } |
9f53e14e | 939 | |
940 | if (!rtnl_trylock()) | |
941 | return restart_syscall(); | |
942 | ||
943 | ret = bond_option_use_carrier_set(bond, new_value); | |
944 | if (!ret) | |
945 | ret = count; | |
946 | ||
947 | rtnl_unlock(); | |
672bda33 | 948 | return ret; |
b76cdba9 | 949 | } |
3d632c3f SH |
950 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
951 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
952 | |
953 | ||
954 | /* | |
955 | * Show and set currently active_slave. | |
956 | */ | |
43cb76d9 GKH |
957 | static ssize_t bonding_show_active_slave(struct device *d, |
958 | struct device_attribute *attr, | |
959 | char *buf) | |
b76cdba9 | 960 | { |
43cb76d9 | 961 | struct bonding *bond = to_bond(d); |
752d48b5 | 962 | struct net_device *slave_dev; |
16cd0160 | 963 | int count = 0; |
b76cdba9 | 964 | |
278b2083 | 965 | rcu_read_lock(); |
752d48b5 JP |
966 | slave_dev = bond_option_active_slave_get_rcu(bond); |
967 | if (slave_dev) | |
968 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 969 | rcu_read_unlock(); |
970 | ||
b76cdba9 MW |
971 | return count; |
972 | } | |
973 | ||
43cb76d9 GKH |
974 | static ssize_t bonding_store_active_slave(struct device *d, |
975 | struct device_attribute *attr, | |
976 | const char *buf, size_t count) | |
b76cdba9 | 977 | { |
d9e32b21 | 978 | int ret; |
43cb76d9 | 979 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 980 | char ifname[IFNAMSIZ]; |
d9e32b21 | 981 | struct net_device *dev; |
b76cdba9 | 982 | |
496a60cd EB |
983 | if (!rtnl_trylock()) |
984 | return restart_syscall(); | |
e843fa50 | 985 | |
c84e1590 | 986 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 987 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
988 | dev = NULL; |
989 | } else { | |
990 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
991 | if (!dev) { | |
992 | ret = -ENODEV; | |
993 | goto out; | |
b76cdba9 | 994 | } |
b76cdba9 | 995 | } |
f4bb2e9c | 996 | |
d9e32b21 JP |
997 | ret = bond_option_active_slave_set(bond, dev); |
998 | if (!ret) | |
999 | ret = count; | |
e843fa50 | 1000 | |
d9e32b21 | 1001 | out: |
6603a6f2 JV |
1002 | rtnl_unlock(); |
1003 | ||
d9e32b21 | 1004 | return ret; |
b76cdba9 MW |
1005 | |
1006 | } | |
3d632c3f SH |
1007 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1008 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1009 | |
1010 | ||
1011 | /* | |
1012 | * Show link status of the bond interface. | |
1013 | */ | |
43cb76d9 GKH |
1014 | static ssize_t bonding_show_mii_status(struct device *d, |
1015 | struct device_attribute *attr, | |
1016 | char *buf) | |
b76cdba9 | 1017 | { |
43cb76d9 | 1018 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1019 | |
278b2083 | 1020 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1021 | } |
43cb76d9 | 1022 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1023 | |
b76cdba9 MW |
1024 | /* |
1025 | * Show current 802.3ad aggregator ID. | |
1026 | */ | |
43cb76d9 GKH |
1027 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1028 | struct device_attribute *attr, | |
1029 | char *buf) | |
b76cdba9 MW |
1030 | { |
1031 | int count = 0; | |
43cb76d9 | 1032 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1033 | |
1034 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1035 | struct ad_info ad_info; | |
3d632c3f | 1036 | count = sprintf(buf, "%d\n", |
318debd8 | 1037 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1038 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1039 | } |
b76cdba9 MW |
1040 | |
1041 | return count; | |
1042 | } | |
43cb76d9 | 1043 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1044 | |
1045 | ||
1046 | /* | |
1047 | * Show number of active 802.3ad ports. | |
1048 | */ | |
43cb76d9 GKH |
1049 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1050 | struct device_attribute *attr, | |
1051 | char *buf) | |
b76cdba9 MW |
1052 | { |
1053 | int count = 0; | |
43cb76d9 | 1054 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1055 | |
1056 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1057 | struct ad_info ad_info; | |
3d632c3f | 1058 | count = sprintf(buf, "%d\n", |
318debd8 | 1059 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1060 | ? 0 : ad_info.ports); |
b76cdba9 | 1061 | } |
b76cdba9 MW |
1062 | |
1063 | return count; | |
1064 | } | |
43cb76d9 | 1065 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1066 | |
1067 | ||
1068 | /* | |
1069 | * Show current 802.3ad actor key. | |
1070 | */ | |
43cb76d9 GKH |
1071 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1072 | struct device_attribute *attr, | |
1073 | char *buf) | |
b76cdba9 MW |
1074 | { |
1075 | int count = 0; | |
43cb76d9 | 1076 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1077 | |
1078 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1079 | struct ad_info ad_info; | |
3d632c3f | 1080 | count = sprintf(buf, "%d\n", |
318debd8 | 1081 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1082 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1083 | } |
b76cdba9 MW |
1084 | |
1085 | return count; | |
1086 | } | |
43cb76d9 | 1087 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1088 | |
1089 | ||
1090 | /* | |
1091 | * Show current 802.3ad partner key. | |
1092 | */ | |
43cb76d9 GKH |
1093 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1094 | struct device_attribute *attr, | |
1095 | char *buf) | |
b76cdba9 MW |
1096 | { |
1097 | int count = 0; | |
43cb76d9 | 1098 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1099 | |
1100 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1101 | struct ad_info ad_info; | |
3d632c3f | 1102 | count = sprintf(buf, "%d\n", |
318debd8 | 1103 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1104 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1105 | } |
b76cdba9 MW |
1106 | |
1107 | return count; | |
1108 | } | |
43cb76d9 | 1109 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1110 | |
1111 | ||
1112 | /* | |
1113 | * Show current 802.3ad partner mac. | |
1114 | */ | |
43cb76d9 GKH |
1115 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1116 | struct device_attribute *attr, | |
1117 | char *buf) | |
b76cdba9 MW |
1118 | { |
1119 | int count = 0; | |
43cb76d9 | 1120 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1121 | |
1122 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1123 | struct ad_info ad_info; | |
3d632c3f | 1124 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1125 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1126 | } |
b76cdba9 MW |
1127 | |
1128 | return count; | |
1129 | } | |
43cb76d9 | 1130 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1131 | |
bb1d9123 AG |
1132 | /* |
1133 | * Show the queue_ids of the slaves in the current bond. | |
1134 | */ | |
1135 | static ssize_t bonding_show_queue_id(struct device *d, | |
1136 | struct device_attribute *attr, | |
1137 | char *buf) | |
1138 | { | |
bb1d9123 | 1139 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1140 | struct list_head *iter; |
dec1e90e | 1141 | struct slave *slave; |
1142 | int res = 0; | |
bb1d9123 AG |
1143 | |
1144 | if (!rtnl_trylock()) | |
1145 | return restart_syscall(); | |
1146 | ||
9caff1e7 | 1147 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1148 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1149 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1150 | if ((PAGE_SIZE - res) > 10) |
1151 | res = PAGE_SIZE - 10; | |
1152 | res += sprintf(buf + res, "++more++ "); | |
1153 | break; | |
1154 | } | |
1155 | res += sprintf(buf + res, "%s:%d ", | |
1156 | slave->dev->name, slave->queue_id); | |
1157 | } | |
bb1d9123 AG |
1158 | if (res) |
1159 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1160 | |
bb1d9123 | 1161 | rtnl_unlock(); |
dec1e90e | 1162 | |
bb1d9123 AG |
1163 | return res; |
1164 | } | |
1165 | ||
1166 | /* | |
1167 | * Set the queue_ids of the slaves in the current bond. The bond | |
1168 | * interface must be enslaved for this to work. | |
1169 | */ | |
1170 | static ssize_t bonding_store_queue_id(struct device *d, | |
1171 | struct device_attribute *attr, | |
1172 | const char *buffer, size_t count) | |
1173 | { | |
1174 | struct slave *slave, *update_slave; | |
1175 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1176 | struct list_head *iter; |
bb1d9123 | 1177 | u16 qid; |
dec1e90e | 1178 | int ret = count; |
bb1d9123 AG |
1179 | char *delim; |
1180 | struct net_device *sdev = NULL; | |
1181 | ||
1182 | if (!rtnl_trylock()) | |
1183 | return restart_syscall(); | |
1184 | ||
1185 | /* delim will point to queue id if successful */ | |
1186 | delim = strchr(buffer, ':'); | |
1187 | if (!delim) | |
1188 | goto err_no_cmd; | |
1189 | ||
1190 | /* | |
1191 | * Terminate string that points to device name and bump it | |
1192 | * up one, so we can read the queue id there. | |
1193 | */ | |
1194 | *delim = '\0'; | |
1195 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1196 | goto err_no_cmd; | |
1197 | ||
1198 | /* Check buffer length, valid ifname and queue id */ | |
1199 | if (strlen(buffer) > IFNAMSIZ || | |
1200 | !dev_valid_name(buffer) || | |
8a540ff9 | 1201 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1202 | goto err_no_cmd; |
1203 | ||
1204 | /* Get the pointer to that interface if it exists */ | |
1205 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1206 | if (!sdev) | |
1207 | goto err_no_cmd; | |
1208 | ||
bb1d9123 AG |
1209 | /* Search for thes slave and check for duplicate qids */ |
1210 | update_slave = NULL; | |
9caff1e7 | 1211 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1212 | if (sdev == slave->dev) |
1213 | /* | |
1214 | * We don't need to check the matching | |
1215 | * slave for dups, since we're overwriting it | |
1216 | */ | |
1217 | update_slave = slave; | |
1218 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1219 | goto err_no_cmd; |
bb1d9123 AG |
1220 | } |
1221 | } | |
1222 | ||
1223 | if (!update_slave) | |
4d1ae5fb | 1224 | goto err_no_cmd; |
bb1d9123 AG |
1225 | |
1226 | /* Actually set the qids for the slave */ | |
1227 | update_slave->queue_id = qid; | |
1228 | ||
bb1d9123 AG |
1229 | out: |
1230 | rtnl_unlock(); | |
1231 | return ret; | |
1232 | ||
bb1d9123 AG |
1233 | err_no_cmd: |
1234 | pr_info("invalid input for queue_id set for %s.\n", | |
1235 | bond->dev->name); | |
1236 | ret = -EPERM; | |
1237 | goto out; | |
1238 | } | |
1239 | ||
1240 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1241 | bonding_store_queue_id); | |
1242 | ||
1243 | ||
ebd8e497 AG |
1244 | /* |
1245 | * Show and set the all_slaves_active flag. | |
1246 | */ | |
1247 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1248 | struct device_attribute *attr, | |
1249 | char *buf) | |
1250 | { | |
1251 | struct bonding *bond = to_bond(d); | |
1252 | ||
1253 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1254 | } | |
1255 | ||
1256 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1257 | struct device_attribute *attr, | |
1258 | const char *buf, size_t count) | |
1259 | { | |
ebd8e497 | 1260 | struct bonding *bond = to_bond(d); |
1cc0b1e3 | 1261 | int new_value, ret; |
4d1ae5fb | 1262 | |
ebd8e497 AG |
1263 | if (sscanf(buf, "%d", &new_value) != 1) { |
1264 | pr_err("%s: no all_slaves_active value specified.\n", | |
1265 | bond->dev->name); | |
1cc0b1e3 | 1266 | return -EINVAL; |
ebd8e497 AG |
1267 | } |
1268 | ||
1cc0b1e3 | 1269 | if (!rtnl_trylock()) |
1270 | return restart_syscall(); | |
ebd8e497 | 1271 | |
1cc0b1e3 | 1272 | ret = bond_option_all_slaves_active_set(bond, new_value); |
1273 | if (!ret) | |
1274 | ret = count; | |
b76cdba9 | 1275 | |
4d1ae5fb | 1276 | rtnl_unlock(); |
672bda33 | 1277 | return ret; |
ebd8e497 AG |
1278 | } |
1279 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1280 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1281 | |
c2952c31 FL |
1282 | /* |
1283 | * Show and set the number of IGMP membership reports to send on link failure | |
1284 | */ | |
1285 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1286 | struct device_attribute *attr, |
1287 | char *buf) | |
c2952c31 FL |
1288 | { |
1289 | struct bonding *bond = to_bond(d); | |
1290 | ||
1291 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1292 | } | |
1293 | ||
1294 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1295 | struct device_attribute *attr, |
1296 | const char *buf, size_t count) | |
c2952c31 FL |
1297 | { |
1298 | int new_value, ret = count; | |
1299 | struct bonding *bond = to_bond(d); | |
1300 | ||
1301 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1302 | pr_err("%s: no resend_igmp value specified.\n", | |
1303 | bond->dev->name); | |
d8838de7 | 1304 | return -EINVAL; |
c2952c31 FL |
1305 | } |
1306 | ||
d8838de7 | 1307 | if (!rtnl_trylock()) |
1308 | return restart_syscall(); | |
c2952c31 | 1309 | |
d8838de7 | 1310 | ret = bond_option_resend_igmp_set(bond, new_value); |
1311 | if (!ret) | |
1312 | ret = count; | |
1313 | ||
1314 | rtnl_unlock(); | |
c2952c31 FL |
1315 | return ret; |
1316 | } | |
1317 | ||
1318 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1319 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1320 | ||
7eacd038 NH |
1321 | |
1322 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1323 | struct device_attribute *attr, | |
1324 | char *buf) | |
1325 | { | |
1326 | struct bonding *bond = to_bond(d); | |
1327 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1328 | } | |
1329 | ||
1330 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1331 | struct device_attribute *attr, | |
1332 | const char *buf, size_t count) | |
1333 | { | |
1334 | struct bonding *bond = to_bond(d); | |
8d836d09 | 1335 | int new_value, ret; |
7eacd038 NH |
1336 | |
1337 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1338 | pr_err("%s: no lp interval value specified.\n", | |
1339 | bond->dev->name); | |
8d836d09 | 1340 | return -EINVAL; |
7eacd038 NH |
1341 | } |
1342 | ||
8d836d09 | 1343 | if (!rtnl_trylock()) |
1344 | return restart_syscall(); | |
7eacd038 | 1345 | |
8d836d09 | 1346 | ret = bond_option_lp_interval_set(bond, new_value); |
1347 | if (!ret) | |
1348 | ret = count; | |
1349 | ||
1350 | rtnl_unlock(); | |
7eacd038 NH |
1351 | return ret; |
1352 | } | |
1353 | ||
1354 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1355 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1356 | ||
73958329 NA |
1357 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1358 | struct device_attribute *attr, | |
1359 | char *buf) | |
1360 | { | |
1361 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 1362 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
a752a8b9 | 1363 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 NA |
1364 | } |
1365 | ||
1366 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1367 | struct device_attribute *attr, | |
1368 | const char *buf, size_t count) | |
1369 | { | |
1370 | struct bonding *bond = to_bond(d); | |
aa59d851 | 1371 | int ret; |
c13ab3ff | 1372 | |
aa59d851 NA |
1373 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PACKETS_PER_SLAVE, |
1374 | (char *)buf); | |
c13ab3ff | 1375 | if (!ret) |
1376 | ret = count; | |
1377 | ||
73958329 NA |
1378 | return ret; |
1379 | } | |
1380 | ||
1381 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1382 | bonding_show_packets_per_slave, | |
1383 | bonding_store_packets_per_slave); | |
1384 | ||
b76cdba9 | 1385 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1386 | &dev_attr_slaves.attr, |
1387 | &dev_attr_mode.attr, | |
dd957c57 | 1388 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1389 | &dev_attr_arp_validate.attr, |
8599b52e | 1390 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1391 | &dev_attr_arp_interval.attr, |
1392 | &dev_attr_arp_ip_target.attr, | |
1393 | &dev_attr_downdelay.attr, | |
1394 | &dev_attr_updelay.attr, | |
1395 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1396 | &dev_attr_ad_select.attr, |
43cb76d9 | 1397 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1398 | &dev_attr_num_grat_arp.attr, |
1399 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1400 | &dev_attr_miimon.attr, |
1401 | &dev_attr_primary.attr, | |
a549952a | 1402 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1403 | &dev_attr_use_carrier.attr, |
1404 | &dev_attr_active_slave.attr, | |
1405 | &dev_attr_mii_status.attr, | |
1406 | &dev_attr_ad_aggregator.attr, | |
1407 | &dev_attr_ad_num_ports.attr, | |
1408 | &dev_attr_ad_actor_key.attr, | |
1409 | &dev_attr_ad_partner_key.attr, | |
1410 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1411 | &dev_attr_queue_id.attr, |
ebd8e497 | 1412 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1413 | &dev_attr_resend_igmp.attr, |
655f8919 | 1414 | &dev_attr_min_links.attr, |
7eacd038 | 1415 | &dev_attr_lp_interval.attr, |
73958329 | 1416 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1417 | NULL, |
1418 | }; | |
1419 | ||
1420 | static struct attribute_group bonding_group = { | |
1421 | .name = "bonding", | |
1422 | .attrs = per_bond_attrs, | |
1423 | }; | |
1424 | ||
1425 | /* | |
1426 | * Initialize sysfs. This sets up the bonding_masters file in | |
1427 | * /sys/class/net. | |
1428 | */ | |
4c22400a | 1429 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1430 | { |
b8a9787e | 1431 | int ret; |
b76cdba9 | 1432 | |
4c22400a | 1433 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1434 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1435 | |
58292cbe TH |
1436 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1437 | bn->net); | |
877cbd36 JV |
1438 | /* |
1439 | * Permit multiple loads of the module by ignoring failures to | |
1440 | * create the bonding_masters sysfs file. Bonding devices | |
1441 | * created by second or subsequent loads of the module will | |
1442 | * not be listed in, or controllable by, bonding_masters, but | |
1443 | * will have the usual "bonding" sysfs directory. | |
1444 | * | |
1445 | * This is done to preserve backwards compatibility for | |
1446 | * initscripts/sysconfig, which load bonding multiple times to | |
1447 | * configure multiple bonding devices. | |
1448 | */ | |
1449 | if (ret == -EEXIST) { | |
38d2f38b | 1450 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1451 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1452 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1453 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1454 | class_attr_bonding_masters.attr.name); |
130aa61a | 1455 | ret = 0; |
877cbd36 | 1456 | } |
b76cdba9 MW |
1457 | |
1458 | return ret; | |
1459 | ||
1460 | } | |
1461 | ||
1462 | /* | |
1463 | * Remove /sys/class/net/bonding_masters. | |
1464 | */ | |
4c22400a | 1465 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1466 | { |
58292cbe | 1467 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1468 | } |
1469 | ||
1470 | /* | |
1471 | * Initialize sysfs for each bond. This sets up and registers | |
1472 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1473 | */ | |
6151b3d4 | 1474 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1475 | { |
6151b3d4 | 1476 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1477 | } |
1478 |