Commit | Line | Data |
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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> | |
73958329 | 42 | #include <linux/reciprocal_div.h> |
b76cdba9 | 43 | |
b76cdba9 | 44 | #include "bonding.h" |
5a03cdb7 | 45 | |
3d632c3f | 46 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 47 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 48 | |
b76cdba9 MW |
49 | /* |
50 | * "show" function for the bond_masters attribute. | |
51 | * The class parameter is ignored. | |
52 | */ | |
28812fe1 AK |
53 | static ssize_t bonding_show_bonds(struct class *cls, |
54 | struct class_attribute *attr, | |
55 | char *buf) | |
b76cdba9 | 56 | { |
4c22400a EB |
57 | struct bond_net *bn = |
58 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
59 | int res = 0; |
60 | struct bonding *bond; | |
61 | ||
7e083840 | 62 | rtnl_lock(); |
b76cdba9 | 63 | |
ec87fd3b | 64 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
65 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
66 | /* not enough space for another interface name */ | |
67 | if ((PAGE_SIZE - res) > 10) | |
68 | res = PAGE_SIZE - 10; | |
b8843665 | 69 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
70 | break; |
71 | } | |
b8843665 | 72 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 73 | } |
1dcdcd69 WF |
74 | if (res) |
75 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
76 | |
77 | rtnl_unlock(); | |
b76cdba9 MW |
78 | return res; |
79 | } | |
80 | ||
4c22400a | 81 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
82 | { |
83 | struct bonding *bond; | |
84 | ||
ec87fd3b | 85 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
86 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
87 | return bond->dev; | |
88 | } | |
89 | return NULL; | |
90 | } | |
91 | ||
b76cdba9 MW |
92 | /* |
93 | * "store" function for the bond_masters attribute. This is what | |
94 | * creates and deletes entire bonds. | |
95 | * | |
96 | * The class parameter is ignored. | |
97 | * | |
98 | */ | |
99 | ||
3d632c3f | 100 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 101 | struct class_attribute *attr, |
3d632c3f | 102 | const char *buffer, size_t count) |
b76cdba9 | 103 | { |
4c22400a EB |
104 | struct bond_net *bn = |
105 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
106 | char command[IFNAMSIZ + 1] = {0, }; |
107 | char *ifname; | |
027ea041 | 108 | int rv, res = count; |
b76cdba9 | 109 | |
b76cdba9 MW |
110 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
111 | ifname = command + 1; | |
112 | if ((strlen(command) <= 1) || | |
113 | !dev_valid_name(ifname)) | |
114 | goto err_no_cmd; | |
115 | ||
116 | if (command[0] == '+') { | |
a4aee5c8 | 117 | pr_info("%s is being created...\n", ifname); |
4c22400a | 118 | rv = bond_create(bn->net, ifname); |
027ea041 | 119 | if (rv) { |
5f86cad1 PO |
120 | if (rv == -EEXIST) |
121 | pr_info("%s already exists.\n", ifname); | |
122 | else | |
123 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 124 | res = rv; |
b76cdba9 | 125 | } |
373500db SH |
126 | } else if (command[0] == '-') { |
127 | struct net_device *bond_dev; | |
b76cdba9 | 128 | |
027ea041 | 129 | rtnl_lock(); |
4c22400a | 130 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 131 | if (bond_dev) { |
a4aee5c8 | 132 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
133 | unregister_netdevice(bond_dev); |
134 | } else { | |
a4aee5c8 | 135 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
136 | res = -ENODEV; |
137 | } | |
138 | rtnl_unlock(); | |
139 | } else | |
140 | goto err_no_cmd; | |
027ea041 | 141 | |
373500db SH |
142 | /* Always return either count or an error. If you return 0, you'll |
143 | * get called forever, which is bad. | |
144 | */ | |
145 | return res; | |
b76cdba9 MW |
146 | |
147 | err_no_cmd: | |
a4aee5c8 | 148 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 149 | return -EPERM; |
b76cdba9 | 150 | } |
373500db | 151 | |
b76cdba9 | 152 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
153 | static const struct class_attribute class_attr_bonding_masters = { |
154 | .attr = { | |
155 | .name = "bonding_masters", | |
156 | .mode = S_IWUSR | S_IRUGO, | |
157 | }, | |
158 | .show = bonding_show_bonds, | |
159 | .store = bonding_store_bonds, | |
4c22400a | 160 | }; |
b76cdba9 | 161 | |
b76cdba9 MW |
162 | /* |
163 | * Show the slaves in the current bond. | |
164 | */ | |
43cb76d9 GKH |
165 | static ssize_t bonding_show_slaves(struct device *d, |
166 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 167 | { |
43cb76d9 | 168 | struct bonding *bond = to_bond(d); |
9caff1e7 | 169 | struct list_head *iter; |
dec1e90e | 170 | struct slave *slave; |
171 | int res = 0; | |
b76cdba9 | 172 | |
4d1ae5fb | 173 | if (!rtnl_trylock()) |
174 | return restart_syscall(); | |
175 | ||
9caff1e7 | 176 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
177 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
178 | /* not enough space for another interface name */ | |
179 | if ((PAGE_SIZE - res) > 10) | |
180 | res = PAGE_SIZE - 10; | |
7bd46508 | 181 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
182 | break; |
183 | } | |
184 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
185 | } | |
4d1ae5fb | 186 | |
187 | rtnl_unlock(); | |
188 | ||
1dcdcd69 WF |
189 | if (res) |
190 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 191 | |
b76cdba9 MW |
192 | return res; |
193 | } | |
194 | ||
195 | /* | |
d6641ccf | 196 | * Set the slaves in the current bond. |
f9f3545e JP |
197 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
198 | * All hard work should be done there. | |
b76cdba9 | 199 | */ |
43cb76d9 GKH |
200 | static ssize_t bonding_store_slaves(struct device *d, |
201 | struct device_attribute *attr, | |
202 | const char *buffer, size_t count) | |
b76cdba9 MW |
203 | { |
204 | char command[IFNAMSIZ + 1] = { 0, }; | |
205 | char *ifname; | |
f9f3545e JP |
206 | int res, ret = count; |
207 | struct net_device *dev; | |
43cb76d9 | 208 | struct bonding *bond = to_bond(d); |
b76cdba9 | 209 | |
496a60cd EB |
210 | if (!rtnl_trylock()) |
211 | return restart_syscall(); | |
027ea041 | 212 | |
b76cdba9 MW |
213 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
214 | ifname = command + 1; | |
215 | if ((strlen(command) <= 1) || | |
216 | !dev_valid_name(ifname)) | |
217 | goto err_no_cmd; | |
218 | ||
f9f3545e JP |
219 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
220 | if (!dev) { | |
221 | pr_info("%s: Interface %s does not exist!\n", | |
222 | bond->dev->name, ifname); | |
223 | ret = -ENODEV; | |
224 | goto out; | |
225 | } | |
b76cdba9 | 226 | |
f9f3545e JP |
227 | switch (command[0]) { |
228 | case '+': | |
229 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 230 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 231 | break; |
3d632c3f | 232 | |
f9f3545e JP |
233 | case '-': |
234 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
235 | res = bond_release(bond->dev, dev); | |
236 | break; | |
b76cdba9 | 237 | |
f9f3545e JP |
238 | default: |
239 | goto err_no_cmd; | |
b76cdba9 MW |
240 | } |
241 | ||
f9f3545e JP |
242 | if (res) |
243 | ret = res; | |
244 | goto out; | |
245 | ||
b76cdba9 | 246 | err_no_cmd: |
a4aee5c8 JP |
247 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
248 | bond->dev->name); | |
b76cdba9 MW |
249 | ret = -EPERM; |
250 | ||
251 | out: | |
027ea041 | 252 | rtnl_unlock(); |
b76cdba9 MW |
253 | return ret; |
254 | } | |
255 | ||
3d632c3f SH |
256 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
257 | bonding_store_slaves); | |
b76cdba9 MW |
258 | |
259 | /* | |
260 | * Show and set the bonding mode. The bond interface must be down to | |
261 | * change the mode. | |
262 | */ | |
43cb76d9 GKH |
263 | static ssize_t bonding_show_mode(struct device *d, |
264 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 265 | { |
43cb76d9 | 266 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
267 | |
268 | return sprintf(buf, "%s %d\n", | |
269 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 270 | 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 | { |
72be35fe | 277 | int new_value, ret; |
43cb76d9 | 278 | struct bonding *bond = to_bond(d); |
b76cdba9 | 279 | |
ece95f7f | 280 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 281 | if (new_value < 0) { |
a4aee5c8 JP |
282 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
283 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
72be35fe | 284 | return -EINVAL; |
c5cb002f | 285 | } |
72be35fe JP |
286 | if (!rtnl_trylock()) |
287 | return restart_syscall(); | |
288 | ||
289 | ret = bond_option_mode_set(bond, new_value); | |
290 | if (!ret) { | |
291 | pr_info("%s: setting mode to %s (%d).\n", | |
292 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
293 | new_value); | |
294 | ret = count; | |
c5cb002f | 295 | } |
8f903c70 | 296 | |
ea6836dd | 297 | rtnl_unlock(); |
b76cdba9 MW |
298 | return ret; |
299 | } | |
3d632c3f SH |
300 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
301 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
302 | |
303 | /* | |
3d632c3f | 304 | * Show and set the bonding transmit hash method. |
b76cdba9 | 305 | */ |
43cb76d9 GKH |
306 | static ssize_t bonding_show_xmit_hash(struct device *d, |
307 | struct device_attribute *attr, | |
308 | char *buf) | |
b76cdba9 | 309 | { |
43cb76d9 | 310 | struct bonding *bond = to_bond(d); |
b76cdba9 | 311 | |
8e4b9329 WF |
312 | return sprintf(buf, "%s %d\n", |
313 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
314 | bond->params.xmit_policy); | |
b76cdba9 MW |
315 | } |
316 | ||
43cb76d9 GKH |
317 | static ssize_t bonding_store_xmit_hash(struct device *d, |
318 | struct device_attribute *attr, | |
319 | const char *buf, size_t count) | |
b76cdba9 | 320 | { |
f70161c6 | 321 | int new_value, ret; |
43cb76d9 | 322 | struct bonding *bond = to_bond(d); |
b76cdba9 | 323 | |
ece95f7f | 324 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 325 | if (new_value < 0) { |
a4aee5c8 | 326 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
327 | bond->dev->name, |
328 | (int)strlen(buf) - 1, buf); | |
f70161c6 | 329 | return -EINVAL; |
b76cdba9 | 330 | } |
53edee2c | 331 | |
f70161c6 | 332 | if (!rtnl_trylock()) |
333 | return restart_syscall(); | |
334 | ||
335 | ret = bond_option_xmit_hash_policy_set(bond, new_value); | |
336 | if (!ret) | |
337 | ret = count; | |
338 | ||
339 | rtnl_unlock(); | |
b76cdba9 MW |
340 | return ret; |
341 | } | |
3d632c3f SH |
342 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
343 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 344 | |
f5b2b966 JV |
345 | /* |
346 | * Show and set arp_validate. | |
347 | */ | |
43cb76d9 GKH |
348 | static ssize_t bonding_show_arp_validate(struct device *d, |
349 | struct device_attribute *attr, | |
350 | char *buf) | |
f5b2b966 | 351 | { |
43cb76d9 | 352 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
353 | |
354 | return sprintf(buf, "%s %d\n", | |
355 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 356 | bond->params.arp_validate); |
f5b2b966 JV |
357 | } |
358 | ||
43cb76d9 GKH |
359 | static ssize_t bonding_store_arp_validate(struct device *d, |
360 | struct device_attribute *attr, | |
361 | const char *buf, size_t count) | |
f5b2b966 | 362 | { |
43cb76d9 | 363 | struct bonding *bond = to_bond(d); |
29c49482 | 364 | int new_value, ret; |
f5b2b966 | 365 | |
ece95f7f | 366 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 367 | if (new_value < 0) { |
a4aee5c8 | 368 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 369 | bond->dev->name, buf); |
29c49482 | 370 | return -EINVAL; |
5bb9e0b5 | 371 | } |
29c49482 | 372 | if (!rtnl_trylock()) |
373 | return restart_syscall(); | |
374 | ||
375 | ret = bond_option_arp_validate_set(bond, new_value); | |
376 | if (!ret) | |
377 | ret = count; | |
378 | ||
5c5038dc | 379 | rtnl_unlock(); |
f5b2b966 | 380 | |
5c5038dc | 381 | return ret; |
f5b2b966 JV |
382 | } |
383 | ||
3d632c3f SH |
384 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
385 | bonding_store_arp_validate); | |
8599b52e VF |
386 | /* |
387 | * Show and set arp_all_targets. | |
388 | */ | |
389 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
390 | struct device_attribute *attr, | |
391 | char *buf) | |
392 | { | |
393 | struct bonding *bond = to_bond(d); | |
394 | int value = bond->params.arp_all_targets; | |
395 | ||
396 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
397 | value); | |
398 | } | |
399 | ||
400 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
401 | struct device_attribute *attr, | |
402 | const char *buf, size_t count) | |
403 | { | |
404 | struct bonding *bond = to_bond(d); | |
d5c84254 | 405 | int new_value, ret; |
8599b52e VF |
406 | |
407 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
408 | if (new_value < 0) { | |
409 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
410 | bond->dev->name, buf); | |
411 | return -EINVAL; | |
412 | } | |
8599b52e | 413 | |
d5c84254 | 414 | if (!rtnl_trylock()) |
415 | return restart_syscall(); | |
8599b52e | 416 | |
d5c84254 | 417 | ret = bond_option_arp_all_targets_set(bond, new_value); |
418 | if (!ret) | |
419 | ret = count; | |
420 | ||
421 | rtnl_unlock(); | |
422 | ||
423 | return ret; | |
8599b52e VF |
424 | } |
425 | ||
426 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
427 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 428 | |
dd957c57 JV |
429 | /* |
430 | * Show and store fail_over_mac. User only allowed to change the | |
431 | * value when there are no slaves. | |
432 | */ | |
3d632c3f SH |
433 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
434 | struct device_attribute *attr, | |
435 | char *buf) | |
dd957c57 JV |
436 | { |
437 | struct bonding *bond = to_bond(d); | |
438 | ||
3915c1e8 JV |
439 | return sprintf(buf, "%s %d\n", |
440 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
441 | bond->params.fail_over_mac); | |
dd957c57 JV |
442 | } |
443 | ||
3d632c3f SH |
444 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
445 | struct device_attribute *attr, | |
446 | const char *buf, size_t count) | |
dd957c57 | 447 | { |
89901972 | 448 | int new_value, ret; |
dd957c57 JV |
449 | struct bonding *bond = to_bond(d); |
450 | ||
3915c1e8 JV |
451 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
452 | if (new_value < 0) { | |
a4aee5c8 | 453 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 454 | bond->dev->name, buf); |
89901972 | 455 | return -EINVAL; |
dd957c57 JV |
456 | } |
457 | ||
89901972 | 458 | if (!rtnl_trylock()) |
459 | return restart_syscall(); | |
460 | ||
461 | ret = bond_option_fail_over_mac_set(bond, new_value); | |
462 | if (!ret) | |
463 | ret = count; | |
3915c1e8 | 464 | |
9402b746 | 465 | rtnl_unlock(); |
466 | return ret; | |
dd957c57 JV |
467 | } |
468 | ||
3d632c3f SH |
469 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
470 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 471 | |
b76cdba9 MW |
472 | /* |
473 | * Show and set the arp timer interval. There are two tricky bits | |
474 | * here. First, if ARP monitoring is activated, then we must disable | |
475 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
476 | * start it. | |
477 | */ | |
43cb76d9 GKH |
478 | static ssize_t bonding_show_arp_interval(struct device *d, |
479 | struct device_attribute *attr, | |
480 | char *buf) | |
b76cdba9 | 481 | { |
43cb76d9 | 482 | struct bonding *bond = to_bond(d); |
b76cdba9 | 483 | |
7bd46508 | 484 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
485 | } |
486 | ||
43cb76d9 GKH |
487 | static ssize_t bonding_store_arp_interval(struct device *d, |
488 | struct device_attribute *attr, | |
489 | const char *buf, size_t count) | |
b76cdba9 | 490 | { |
43cb76d9 | 491 | struct bonding *bond = to_bond(d); |
06151dbc | 492 | int new_value, ret; |
b76cdba9 MW |
493 | |
494 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 495 | pr_err("%s: no arp_interval value specified.\n", |
06151dbc | 496 | bond->dev->name); |
497 | return -EINVAL; | |
b76cdba9 | 498 | } |
06151dbc | 499 | |
500 | if (!rtnl_trylock()) | |
501 | return restart_syscall(); | |
502 | ||
503 | ret = bond_option_arp_interval_set(bond, new_value); | |
504 | if (!ret) | |
505 | ret = count; | |
506 | ||
fbb0c41b | 507 | rtnl_unlock(); |
b76cdba9 MW |
508 | return ret; |
509 | } | |
3d632c3f SH |
510 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
511 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
512 | |
513 | /* | |
514 | * Show and set the arp targets. | |
515 | */ | |
43cb76d9 GKH |
516 | static ssize_t bonding_show_arp_targets(struct device *d, |
517 | struct device_attribute *attr, | |
518 | char *buf) | |
b76cdba9 MW |
519 | { |
520 | int i, res = 0; | |
43cb76d9 | 521 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
522 | |
523 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
524 | if (bond->params.arp_targets[i]) | |
63779436 HH |
525 | res += sprintf(buf + res, "%pI4 ", |
526 | &bond->params.arp_targets[i]); | |
b76cdba9 | 527 | } |
1dcdcd69 WF |
528 | if (res) |
529 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
530 | return res; |
531 | } | |
532 | ||
43cb76d9 GKH |
533 | static ssize_t bonding_store_arp_targets(struct device *d, |
534 | struct device_attribute *attr, | |
535 | const char *buf, size_t count) | |
b76cdba9 | 536 | { |
43cb76d9 | 537 | struct bonding *bond = to_bond(d); |
7f28fa10 | 538 | __be32 target; |
539 | int ret = -EPERM; | |
4d1ae5fb | 540 | |
7f28fa10 | 541 | if (!in4_pton(buf + 1, -1, (u8 *)&target, -1, NULL)) { |
542 | pr_err("%s: invalid ARP target %pI4 specified\n", | |
543 | bond->dev->name, &target); | |
544 | return -EPERM; | |
f9de11a1 | 545 | } |
8599b52e | 546 | |
7f28fa10 | 547 | if (!rtnl_trylock()) |
548 | return restart_syscall(); | |
8599b52e | 549 | |
7f28fa10 | 550 | if (buf[0] == '+') |
551 | ret = bond_option_arp_ip_target_add(bond, target); | |
552 | else if (buf[0] == '-') | |
553 | ret = bond_option_arp_ip_target_rem(bond, target); | |
554 | else | |
a4aee5c8 JP |
555 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
556 | bond->dev->name); | |
b76cdba9 | 557 | |
7f28fa10 | 558 | if (!ret) |
559 | ret = count; | |
560 | ||
4d1ae5fb | 561 | rtnl_unlock(); |
b76cdba9 MW |
562 | return ret; |
563 | } | |
43cb76d9 | 564 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
565 | |
566 | /* | |
567 | * Show and set the up and down delays. These must be multiples of the | |
568 | * MII monitoring value, and are stored internally as the multiplier. | |
569 | * Thus, we must translate to MS for the real world. | |
570 | */ | |
43cb76d9 GKH |
571 | static ssize_t bonding_show_downdelay(struct device *d, |
572 | struct device_attribute *attr, | |
573 | char *buf) | |
b76cdba9 | 574 | { |
43cb76d9 | 575 | struct bonding *bond = to_bond(d); |
b76cdba9 | 576 | |
7bd46508 | 577 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
578 | } |
579 | ||
43cb76d9 GKH |
580 | static ssize_t bonding_store_downdelay(struct device *d, |
581 | struct device_attribute *attr, | |
582 | const char *buf, size_t count) | |
b76cdba9 | 583 | { |
c7461f9b | 584 | int new_value, ret; |
43cb76d9 | 585 | struct bonding *bond = to_bond(d); |
b76cdba9 | 586 | |
b76cdba9 | 587 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 588 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
c7461f9b | 589 | return -EINVAL; |
b76cdba9 | 590 | } |
b76cdba9 | 591 | |
c7461f9b | 592 | if (!rtnl_trylock()) |
593 | return restart_syscall(); | |
594 | ||
595 | ret = bond_option_downdelay_set(bond, new_value); | |
596 | if (!ret) | |
597 | ret = count; | |
b76cdba9 | 598 | |
b869ccfa | 599 | rtnl_unlock(); |
b76cdba9 MW |
600 | return ret; |
601 | } | |
3d632c3f SH |
602 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
603 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 604 | |
43cb76d9 GKH |
605 | static ssize_t bonding_show_updelay(struct device *d, |
606 | struct device_attribute *attr, | |
607 | char *buf) | |
b76cdba9 | 608 | { |
43cb76d9 | 609 | struct bonding *bond = to_bond(d); |
b76cdba9 | 610 | |
7bd46508 | 611 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
612 | |
613 | } | |
614 | ||
43cb76d9 GKH |
615 | static ssize_t bonding_store_updelay(struct device *d, |
616 | struct device_attribute *attr, | |
617 | const char *buf, size_t count) | |
b76cdba9 | 618 | { |
25852e29 | 619 | int new_value, ret; |
43cb76d9 | 620 | struct bonding *bond = to_bond(d); |
b76cdba9 | 621 | |
b76cdba9 | 622 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 623 | pr_err("%s: no up delay value specified.\n", |
25852e29 | 624 | bond->dev->name); |
625 | return -EINVAL; | |
b76cdba9 MW |
626 | } |
627 | ||
25852e29 | 628 | if (!rtnl_trylock()) |
629 | return restart_syscall(); | |
630 | ||
631 | ret = bond_option_updelay_set(bond, new_value); | |
632 | if (!ret) | |
633 | ret = count; | |
634 | ||
b869ccfa | 635 | rtnl_unlock(); |
b76cdba9 MW |
636 | return ret; |
637 | } | |
3d632c3f SH |
638 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
639 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
640 | |
641 | /* | |
642 | * Show and set the LACP interval. Interface must be down, and the mode | |
643 | * must be set to 802.3ad mode. | |
644 | */ | |
43cb76d9 GKH |
645 | static ssize_t bonding_show_lacp(struct device *d, |
646 | struct device_attribute *attr, | |
647 | char *buf) | |
b76cdba9 | 648 | { |
43cb76d9 | 649 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
650 | |
651 | return sprintf(buf, "%s %d\n", | |
652 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 653 | bond->params.lacp_fast); |
b76cdba9 MW |
654 | } |
655 | ||
43cb76d9 GKH |
656 | static ssize_t bonding_store_lacp(struct device *d, |
657 | struct device_attribute *attr, | |
658 | const char *buf, size_t count) | |
b76cdba9 | 659 | { |
43cb76d9 | 660 | struct bonding *bond = to_bond(d); |
998e40bb | 661 | int new_value, ret; |
b76cdba9 | 662 | |
ece95f7f | 663 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
998e40bb | 664 | if (new_value < 0) { |
a4aee5c8 | 665 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 666 | bond->dev->name, (int)strlen(buf) - 1, buf); |
998e40bb | 667 | return -EINVAL; |
b76cdba9 | 668 | } |
c509316b | 669 | |
998e40bb | 670 | if (!rtnl_trylock()) |
671 | return restart_syscall(); | |
672 | ||
673 | ret = bond_option_lacp_rate_set(bond, new_value); | |
674 | if (!ret) | |
675 | ret = count; | |
676 | ||
677 | rtnl_unlock(); | |
b76cdba9 MW |
678 | return ret; |
679 | } | |
3d632c3f SH |
680 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
681 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 682 | |
655f8919 | 683 | static ssize_t bonding_show_min_links(struct device *d, |
684 | struct device_attribute *attr, | |
685 | char *buf) | |
686 | { | |
687 | struct bonding *bond = to_bond(d); | |
688 | ||
689 | return sprintf(buf, "%d\n", bond->params.min_links); | |
690 | } | |
691 | ||
692 | static ssize_t bonding_store_min_links(struct device *d, | |
693 | struct device_attribute *attr, | |
694 | const char *buf, size_t count) | |
695 | { | |
696 | struct bonding *bond = to_bond(d); | |
697 | int ret; | |
698 | unsigned int new_value; | |
699 | ||
700 | ret = kstrtouint(buf, 0, &new_value); | |
701 | if (ret < 0) { | |
702 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
703 | bond->dev->name, buf); | |
704 | return ret; | |
705 | } | |
706 | ||
7d101008 | 707 | if (!rtnl_trylock()) |
708 | return restart_syscall(); | |
709 | ||
710 | ret = bond_option_min_links_set(bond, new_value); | |
711 | if (!ret) | |
712 | ret = count; | |
713 | ||
714 | rtnl_unlock(); | |
715 | return ret; | |
655f8919 | 716 | } |
717 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
718 | bonding_show_min_links, bonding_store_min_links); | |
719 | ||
fd989c83 JV |
720 | static ssize_t bonding_show_ad_select(struct device *d, |
721 | struct device_attribute *attr, | |
722 | char *buf) | |
723 | { | |
724 | struct bonding *bond = to_bond(d); | |
725 | ||
726 | return sprintf(buf, "%s %d\n", | |
727 | ad_select_tbl[bond->params.ad_select].modename, | |
728 | bond->params.ad_select); | |
729 | } | |
730 | ||
731 | ||
732 | static ssize_t bonding_store_ad_select(struct device *d, | |
733 | struct device_attribute *attr, | |
734 | const char *buf, size_t count) | |
735 | { | |
736 | int new_value, ret = count; | |
737 | struct bonding *bond = to_bond(d); | |
738 | ||
739 | if (bond->dev->flags & IFF_UP) { | |
a4aee5c8 JP |
740 | pr_err("%s: Unable to update ad_select because interface is up.\n", |
741 | bond->dev->name); | |
fd989c83 JV |
742 | ret = -EPERM; |
743 | goto out; | |
744 | } | |
745 | ||
746 | new_value = bond_parse_parm(buf, ad_select_tbl); | |
747 | ||
748 | if (new_value != -1) { | |
749 | bond->params.ad_select = new_value; | |
a4aee5c8 JP |
750 | pr_info("%s: Setting ad_select to %s (%d).\n", |
751 | bond->dev->name, ad_select_tbl[new_value].modename, | |
752 | new_value); | |
fd989c83 | 753 | } else { |
a4aee5c8 | 754 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 JV |
755 | bond->dev->name, (int)strlen(buf) - 1, buf); |
756 | ret = -EINVAL; | |
757 | } | |
758 | out: | |
759 | return ret; | |
760 | } | |
3d632c3f SH |
761 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
762 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 763 | |
ad246c99 BH |
764 | /* |
765 | * Show and set the number of peer notifications to send after a failover event. | |
766 | */ | |
767 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
768 | struct device_attribute *attr, | |
769 | char *buf) | |
770 | { | |
771 | struct bonding *bond = to_bond(d); | |
772 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
773 | } | |
774 | ||
775 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
776 | struct device_attribute *attr, | |
777 | const char *buf, size_t count) | |
778 | { | |
779 | struct bonding *bond = to_bond(d); | |
2c9839c1 | 780 | u8 new_value; |
781 | int ret; | |
782 | ||
783 | ret = kstrtou8(buf, 10, &new_value); | |
784 | if (!ret) { | |
785 | pr_err("%s: invalid value %s specified.\n", | |
786 | bond->dev->name, buf); | |
787 | return ret; | |
788 | } | |
789 | ||
790 | if (!rtnl_trylock()) | |
791 | return restart_syscall(); | |
792 | ||
793 | ret = bond_option_num_peer_notif_set(bond, new_value); | |
794 | if (!ret) | |
795 | ret = count; | |
796 | ||
797 | rtnl_unlock(); | |
798 | return ret; | |
ad246c99 BH |
799 | } |
800 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
801 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
802 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
803 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
804 | ||
b76cdba9 MW |
805 | /* |
806 | * Show and set the MII monitor interval. There are two tricky bits | |
807 | * here. First, if MII monitoring is activated, then we must disable | |
808 | * ARP monitoring. Second, if the timer isn't running, we must | |
809 | * start it. | |
810 | */ | |
43cb76d9 GKH |
811 | static ssize_t bonding_show_miimon(struct device *d, |
812 | struct device_attribute *attr, | |
813 | char *buf) | |
b76cdba9 | 814 | { |
43cb76d9 | 815 | struct bonding *bond = to_bond(d); |
b76cdba9 | 816 | |
7bd46508 | 817 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
818 | } |
819 | ||
43cb76d9 GKH |
820 | static ssize_t bonding_store_miimon(struct device *d, |
821 | struct device_attribute *attr, | |
822 | const char *buf, size_t count) | |
b76cdba9 | 823 | { |
eecdaa6e | 824 | int new_value, ret; |
43cb76d9 | 825 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
826 | |
827 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 828 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 | 829 | bond->dev->name); |
eecdaa6e | 830 | return -EINVAL; |
b76cdba9 | 831 | } |
eecdaa6e | 832 | |
833 | if (!rtnl_trylock()) | |
834 | return restart_syscall(); | |
835 | ||
836 | ret = bond_option_miimon_set(bond, new_value); | |
837 | if (!ret) | |
838 | ret = count; | |
839 | ||
fbb0c41b | 840 | rtnl_unlock(); |
b76cdba9 MW |
841 | return ret; |
842 | } | |
3d632c3f SH |
843 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
844 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
845 | |
846 | /* | |
847 | * Show and set the primary slave. The store function is much | |
848 | * simpler than bonding_store_slaves function because it only needs to | |
849 | * handle one interface name. | |
850 | * The bond must be a mode that supports a primary for this be | |
851 | * set. | |
852 | */ | |
43cb76d9 GKH |
853 | static ssize_t bonding_show_primary(struct device *d, |
854 | struct device_attribute *attr, | |
855 | char *buf) | |
b76cdba9 MW |
856 | { |
857 | int count = 0; | |
43cb76d9 | 858 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
859 | |
860 | if (bond->primary_slave) | |
7bd46508 | 861 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
862 | |
863 | return count; | |
864 | } | |
865 | ||
43cb76d9 GKH |
866 | static ssize_t bonding_store_primary(struct device *d, |
867 | struct device_attribute *attr, | |
868 | const char *buf, size_t count) | |
b76cdba9 | 869 | { |
43cb76d9 | 870 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 871 | char ifname[IFNAMSIZ]; |
0a98a0d1 | 872 | int ret; |
b76cdba9 | 873 | |
eb6e98a1 | 874 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
0a98a0d1 | 875 | if (ifname[0] == '\n') |
876 | ifname[0] = '\0'; | |
b76cdba9 | 877 | |
0a98a0d1 | 878 | if (!rtnl_trylock()) |
879 | return restart_syscall(); | |
f4bb2e9c | 880 | |
0a98a0d1 | 881 | ret = bond_option_primary_set(bond, ifname); |
882 | if (!ret) | |
883 | ret = count; | |
8a93664d | 884 | |
6603a6f2 | 885 | rtnl_unlock(); |
0a98a0d1 | 886 | return ret; |
b76cdba9 | 887 | } |
3d632c3f SH |
888 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
889 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 890 | |
a549952a JP |
891 | /* |
892 | * Show and set the primary_reselect flag. | |
893 | */ | |
894 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
895 | struct device_attribute *attr, | |
896 | char *buf) | |
897 | { | |
898 | struct bonding *bond = to_bond(d); | |
899 | ||
900 | return sprintf(buf, "%s %d\n", | |
901 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
902 | bond->params.primary_reselect); | |
903 | } | |
904 | ||
905 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
906 | struct device_attribute *attr, | |
907 | const char *buf, size_t count) | |
908 | { | |
8a41ae44 | 909 | int new_value, ret; |
a549952a JP |
910 | struct bonding *bond = to_bond(d); |
911 | ||
a549952a JP |
912 | new_value = bond_parse_parm(buf, pri_reselect_tbl); |
913 | if (new_value < 0) { | |
a4aee5c8 | 914 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
915 | bond->dev->name, |
916 | (int) strlen(buf) - 1, buf); | |
8a41ae44 | 917 | return -EINVAL; |
a549952a JP |
918 | } |
919 | ||
8a41ae44 | 920 | if (!rtnl_trylock()) |
921 | return restart_syscall(); | |
922 | ||
923 | ret = bond_option_primary_reselect_set(bond, new_value); | |
924 | if (!ret) | |
925 | ret = count; | |
a549952a | 926 | |
a549952a JP |
927 | rtnl_unlock(); |
928 | return ret; | |
929 | } | |
930 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
931 | bonding_show_primary_reselect, | |
932 | bonding_store_primary_reselect); | |
933 | ||
b76cdba9 MW |
934 | /* |
935 | * Show and set the use_carrier flag. | |
936 | */ | |
43cb76d9 GKH |
937 | static ssize_t bonding_show_carrier(struct device *d, |
938 | struct device_attribute *attr, | |
939 | char *buf) | |
b76cdba9 | 940 | { |
43cb76d9 | 941 | struct bonding *bond = to_bond(d); |
b76cdba9 | 942 | |
7bd46508 | 943 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
944 | } |
945 | ||
43cb76d9 GKH |
946 | static ssize_t bonding_store_carrier(struct device *d, |
947 | struct device_attribute *attr, | |
948 | const char *buf, size_t count) | |
b76cdba9 | 949 | { |
9f53e14e | 950 | int new_value, ret; |
43cb76d9 | 951 | struct bonding *bond = to_bond(d); |
b76cdba9 | 952 | |
b76cdba9 | 953 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 954 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 | 955 | bond->dev->name); |
9f53e14e | 956 | return -EINVAL; |
b76cdba9 | 957 | } |
9f53e14e | 958 | |
959 | if (!rtnl_trylock()) | |
960 | return restart_syscall(); | |
961 | ||
962 | ret = bond_option_use_carrier_set(bond, new_value); | |
963 | if (!ret) | |
964 | ret = count; | |
965 | ||
966 | rtnl_unlock(); | |
672bda33 | 967 | return ret; |
b76cdba9 | 968 | } |
3d632c3f SH |
969 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
970 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
971 | |
972 | ||
973 | /* | |
974 | * Show and set currently active_slave. | |
975 | */ | |
43cb76d9 GKH |
976 | static ssize_t bonding_show_active_slave(struct device *d, |
977 | struct device_attribute *attr, | |
978 | char *buf) | |
b76cdba9 | 979 | { |
43cb76d9 | 980 | struct bonding *bond = to_bond(d); |
752d48b5 | 981 | struct net_device *slave_dev; |
16cd0160 | 982 | int count = 0; |
b76cdba9 | 983 | |
278b2083 | 984 | rcu_read_lock(); |
752d48b5 JP |
985 | slave_dev = bond_option_active_slave_get_rcu(bond); |
986 | if (slave_dev) | |
987 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 988 | rcu_read_unlock(); |
989 | ||
b76cdba9 MW |
990 | return count; |
991 | } | |
992 | ||
43cb76d9 GKH |
993 | static ssize_t bonding_store_active_slave(struct device *d, |
994 | struct device_attribute *attr, | |
995 | const char *buf, size_t count) | |
b76cdba9 | 996 | { |
d9e32b21 | 997 | int ret; |
43cb76d9 | 998 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 999 | char ifname[IFNAMSIZ]; |
d9e32b21 | 1000 | struct net_device *dev; |
b76cdba9 | 1001 | |
496a60cd EB |
1002 | if (!rtnl_trylock()) |
1003 | return restart_syscall(); | |
e843fa50 | 1004 | |
c84e1590 | 1005 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 1006 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
1007 | dev = NULL; |
1008 | } else { | |
1009 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
1010 | if (!dev) { | |
1011 | ret = -ENODEV; | |
1012 | goto out; | |
b76cdba9 | 1013 | } |
b76cdba9 | 1014 | } |
f4bb2e9c | 1015 | |
d9e32b21 JP |
1016 | ret = bond_option_active_slave_set(bond, dev); |
1017 | if (!ret) | |
1018 | ret = count; | |
e843fa50 | 1019 | |
d9e32b21 | 1020 | out: |
6603a6f2 JV |
1021 | rtnl_unlock(); |
1022 | ||
d9e32b21 | 1023 | return ret; |
b76cdba9 MW |
1024 | |
1025 | } | |
3d632c3f SH |
1026 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1027 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1028 | |
1029 | ||
1030 | /* | |
1031 | * Show link status of the bond interface. | |
1032 | */ | |
43cb76d9 GKH |
1033 | static ssize_t bonding_show_mii_status(struct device *d, |
1034 | struct device_attribute *attr, | |
1035 | char *buf) | |
b76cdba9 | 1036 | { |
43cb76d9 | 1037 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1038 | |
278b2083 | 1039 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1040 | } |
43cb76d9 | 1041 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1042 | |
b76cdba9 MW |
1043 | /* |
1044 | * Show current 802.3ad aggregator ID. | |
1045 | */ | |
43cb76d9 GKH |
1046 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1047 | struct device_attribute *attr, | |
1048 | char *buf) | |
b76cdba9 MW |
1049 | { |
1050 | int count = 0; | |
43cb76d9 | 1051 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1052 | |
1053 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1054 | struct ad_info ad_info; | |
3d632c3f | 1055 | count = sprintf(buf, "%d\n", |
318debd8 | 1056 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1057 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1058 | } |
b76cdba9 MW |
1059 | |
1060 | return count; | |
1061 | } | |
43cb76d9 | 1062 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1063 | |
1064 | ||
1065 | /* | |
1066 | * Show number of active 802.3ad ports. | |
1067 | */ | |
43cb76d9 GKH |
1068 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1069 | struct device_attribute *attr, | |
1070 | char *buf) | |
b76cdba9 MW |
1071 | { |
1072 | int count = 0; | |
43cb76d9 | 1073 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1074 | |
1075 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1076 | struct ad_info ad_info; | |
3d632c3f | 1077 | count = sprintf(buf, "%d\n", |
318debd8 | 1078 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1079 | ? 0 : ad_info.ports); |
b76cdba9 | 1080 | } |
b76cdba9 MW |
1081 | |
1082 | return count; | |
1083 | } | |
43cb76d9 | 1084 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1085 | |
1086 | ||
1087 | /* | |
1088 | * Show current 802.3ad actor key. | |
1089 | */ | |
43cb76d9 GKH |
1090 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1091 | struct device_attribute *attr, | |
1092 | char *buf) | |
b76cdba9 MW |
1093 | { |
1094 | int count = 0; | |
43cb76d9 | 1095 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1096 | |
1097 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1098 | struct ad_info ad_info; | |
3d632c3f | 1099 | count = sprintf(buf, "%d\n", |
318debd8 | 1100 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1101 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1102 | } |
b76cdba9 MW |
1103 | |
1104 | return count; | |
1105 | } | |
43cb76d9 | 1106 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1107 | |
1108 | ||
1109 | /* | |
1110 | * Show current 802.3ad partner key. | |
1111 | */ | |
43cb76d9 GKH |
1112 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1113 | struct device_attribute *attr, | |
1114 | char *buf) | |
b76cdba9 MW |
1115 | { |
1116 | int count = 0; | |
43cb76d9 | 1117 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1118 | |
1119 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1120 | struct ad_info ad_info; | |
3d632c3f | 1121 | count = sprintf(buf, "%d\n", |
318debd8 | 1122 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1123 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1124 | } |
b76cdba9 MW |
1125 | |
1126 | return count; | |
1127 | } | |
43cb76d9 | 1128 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1129 | |
1130 | ||
1131 | /* | |
1132 | * Show current 802.3ad partner mac. | |
1133 | */ | |
43cb76d9 GKH |
1134 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1135 | struct device_attribute *attr, | |
1136 | char *buf) | |
b76cdba9 MW |
1137 | { |
1138 | int count = 0; | |
43cb76d9 | 1139 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1140 | |
1141 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1142 | struct ad_info ad_info; | |
3d632c3f | 1143 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1144 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1145 | } |
b76cdba9 MW |
1146 | |
1147 | return count; | |
1148 | } | |
43cb76d9 | 1149 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1150 | |
bb1d9123 AG |
1151 | /* |
1152 | * Show the queue_ids of the slaves in the current bond. | |
1153 | */ | |
1154 | static ssize_t bonding_show_queue_id(struct device *d, | |
1155 | struct device_attribute *attr, | |
1156 | char *buf) | |
1157 | { | |
bb1d9123 | 1158 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1159 | struct list_head *iter; |
dec1e90e | 1160 | struct slave *slave; |
1161 | int res = 0; | |
bb1d9123 AG |
1162 | |
1163 | if (!rtnl_trylock()) | |
1164 | return restart_syscall(); | |
1165 | ||
9caff1e7 | 1166 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1167 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1168 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1169 | if ((PAGE_SIZE - res) > 10) |
1170 | res = PAGE_SIZE - 10; | |
1171 | res += sprintf(buf + res, "++more++ "); | |
1172 | break; | |
1173 | } | |
1174 | res += sprintf(buf + res, "%s:%d ", | |
1175 | slave->dev->name, slave->queue_id); | |
1176 | } | |
bb1d9123 AG |
1177 | if (res) |
1178 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1179 | |
bb1d9123 | 1180 | rtnl_unlock(); |
dec1e90e | 1181 | |
bb1d9123 AG |
1182 | return res; |
1183 | } | |
1184 | ||
1185 | /* | |
1186 | * Set the queue_ids of the slaves in the current bond. The bond | |
1187 | * interface must be enslaved for this to work. | |
1188 | */ | |
1189 | static ssize_t bonding_store_queue_id(struct device *d, | |
1190 | struct device_attribute *attr, | |
1191 | const char *buffer, size_t count) | |
1192 | { | |
1193 | struct slave *slave, *update_slave; | |
1194 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1195 | struct list_head *iter; |
bb1d9123 | 1196 | u16 qid; |
dec1e90e | 1197 | int ret = count; |
bb1d9123 AG |
1198 | char *delim; |
1199 | struct net_device *sdev = NULL; | |
1200 | ||
1201 | if (!rtnl_trylock()) | |
1202 | return restart_syscall(); | |
1203 | ||
1204 | /* delim will point to queue id if successful */ | |
1205 | delim = strchr(buffer, ':'); | |
1206 | if (!delim) | |
1207 | goto err_no_cmd; | |
1208 | ||
1209 | /* | |
1210 | * Terminate string that points to device name and bump it | |
1211 | * up one, so we can read the queue id there. | |
1212 | */ | |
1213 | *delim = '\0'; | |
1214 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1215 | goto err_no_cmd; | |
1216 | ||
1217 | /* Check buffer length, valid ifname and queue id */ | |
1218 | if (strlen(buffer) > IFNAMSIZ || | |
1219 | !dev_valid_name(buffer) || | |
8a540ff9 | 1220 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1221 | goto err_no_cmd; |
1222 | ||
1223 | /* Get the pointer to that interface if it exists */ | |
1224 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1225 | if (!sdev) | |
1226 | goto err_no_cmd; | |
1227 | ||
bb1d9123 AG |
1228 | /* Search for thes slave and check for duplicate qids */ |
1229 | update_slave = NULL; | |
9caff1e7 | 1230 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1231 | if (sdev == slave->dev) |
1232 | /* | |
1233 | * We don't need to check the matching | |
1234 | * slave for dups, since we're overwriting it | |
1235 | */ | |
1236 | update_slave = slave; | |
1237 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1238 | goto err_no_cmd; |
bb1d9123 AG |
1239 | } |
1240 | } | |
1241 | ||
1242 | if (!update_slave) | |
4d1ae5fb | 1243 | goto err_no_cmd; |
bb1d9123 AG |
1244 | |
1245 | /* Actually set the qids for the slave */ | |
1246 | update_slave->queue_id = qid; | |
1247 | ||
bb1d9123 AG |
1248 | out: |
1249 | rtnl_unlock(); | |
1250 | return ret; | |
1251 | ||
bb1d9123 AG |
1252 | err_no_cmd: |
1253 | pr_info("invalid input for queue_id set for %s.\n", | |
1254 | bond->dev->name); | |
1255 | ret = -EPERM; | |
1256 | goto out; | |
1257 | } | |
1258 | ||
1259 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1260 | bonding_store_queue_id); | |
1261 | ||
1262 | ||
ebd8e497 AG |
1263 | /* |
1264 | * Show and set the all_slaves_active flag. | |
1265 | */ | |
1266 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1267 | struct device_attribute *attr, | |
1268 | char *buf) | |
1269 | { | |
1270 | struct bonding *bond = to_bond(d); | |
1271 | ||
1272 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1273 | } | |
1274 | ||
1275 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1276 | struct device_attribute *attr, | |
1277 | const char *buf, size_t count) | |
1278 | { | |
ebd8e497 | 1279 | struct bonding *bond = to_bond(d); |
1cc0b1e3 | 1280 | int new_value, ret; |
4d1ae5fb | 1281 | |
ebd8e497 AG |
1282 | if (sscanf(buf, "%d", &new_value) != 1) { |
1283 | pr_err("%s: no all_slaves_active value specified.\n", | |
1284 | bond->dev->name); | |
1cc0b1e3 | 1285 | return -EINVAL; |
ebd8e497 AG |
1286 | } |
1287 | ||
1cc0b1e3 | 1288 | if (!rtnl_trylock()) |
1289 | return restart_syscall(); | |
ebd8e497 | 1290 | |
1cc0b1e3 | 1291 | ret = bond_option_all_slaves_active_set(bond, new_value); |
1292 | if (!ret) | |
1293 | ret = count; | |
b76cdba9 | 1294 | |
4d1ae5fb | 1295 | rtnl_unlock(); |
672bda33 | 1296 | return ret; |
ebd8e497 AG |
1297 | } |
1298 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1299 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1300 | |
c2952c31 FL |
1301 | /* |
1302 | * Show and set the number of IGMP membership reports to send on link failure | |
1303 | */ | |
1304 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1305 | struct device_attribute *attr, |
1306 | char *buf) | |
c2952c31 FL |
1307 | { |
1308 | struct bonding *bond = to_bond(d); | |
1309 | ||
1310 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1311 | } | |
1312 | ||
1313 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1314 | struct device_attribute *attr, |
1315 | const char *buf, size_t count) | |
c2952c31 FL |
1316 | { |
1317 | int new_value, ret = count; | |
1318 | struct bonding *bond = to_bond(d); | |
1319 | ||
1320 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1321 | pr_err("%s: no resend_igmp value specified.\n", | |
1322 | bond->dev->name); | |
d8838de7 | 1323 | return -EINVAL; |
c2952c31 FL |
1324 | } |
1325 | ||
d8838de7 | 1326 | if (!rtnl_trylock()) |
1327 | return restart_syscall(); | |
c2952c31 | 1328 | |
d8838de7 | 1329 | ret = bond_option_resend_igmp_set(bond, new_value); |
1330 | if (!ret) | |
1331 | ret = count; | |
1332 | ||
1333 | rtnl_unlock(); | |
c2952c31 FL |
1334 | return ret; |
1335 | } | |
1336 | ||
1337 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1338 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1339 | ||
7eacd038 NH |
1340 | |
1341 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1342 | struct device_attribute *attr, | |
1343 | char *buf) | |
1344 | { | |
1345 | struct bonding *bond = to_bond(d); | |
1346 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1347 | } | |
1348 | ||
1349 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1350 | struct device_attribute *attr, | |
1351 | const char *buf, size_t count) | |
1352 | { | |
1353 | struct bonding *bond = to_bond(d); | |
8d836d09 | 1354 | int new_value, ret; |
7eacd038 NH |
1355 | |
1356 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1357 | pr_err("%s: no lp interval value specified.\n", | |
1358 | bond->dev->name); | |
8d836d09 | 1359 | return -EINVAL; |
7eacd038 NH |
1360 | } |
1361 | ||
8d836d09 | 1362 | if (!rtnl_trylock()) |
1363 | return restart_syscall(); | |
7eacd038 | 1364 | |
8d836d09 | 1365 | ret = bond_option_lp_interval_set(bond, new_value); |
1366 | if (!ret) | |
1367 | ret = count; | |
1368 | ||
1369 | rtnl_unlock(); | |
7eacd038 NH |
1370 | return ret; |
1371 | } | |
1372 | ||
1373 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1374 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1375 | ||
73958329 NA |
1376 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1377 | struct device_attribute *attr, | |
1378 | char *buf) | |
1379 | { | |
1380 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 1381 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
73958329 NA |
1382 | |
1383 | if (packets_per_slave > 1) | |
1384 | packets_per_slave = reciprocal_value(packets_per_slave); | |
1385 | ||
a752a8b9 | 1386 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 NA |
1387 | } |
1388 | ||
1389 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1390 | struct device_attribute *attr, | |
1391 | const char *buf, size_t count) | |
1392 | { | |
1393 | struct bonding *bond = to_bond(d); | |
c13ab3ff | 1394 | int new_value, ret; |
73958329 NA |
1395 | |
1396 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1397 | pr_err("%s: no packets_per_slave value specified.\n", | |
1398 | bond->dev->name); | |
c13ab3ff | 1399 | return -EINVAL; |
73958329 | 1400 | } |
c13ab3ff | 1401 | |
1402 | if (!rtnl_trylock()) | |
1403 | return restart_syscall(); | |
1404 | ||
1405 | ret = bond_option_packets_per_slave_set(bond, new_value); | |
1406 | if (!ret) | |
1407 | ret = count; | |
1408 | ||
1409 | rtnl_unlock(); | |
73958329 NA |
1410 | return ret; |
1411 | } | |
1412 | ||
1413 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1414 | bonding_show_packets_per_slave, | |
1415 | bonding_store_packets_per_slave); | |
1416 | ||
b76cdba9 | 1417 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1418 | &dev_attr_slaves.attr, |
1419 | &dev_attr_mode.attr, | |
dd957c57 | 1420 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1421 | &dev_attr_arp_validate.attr, |
8599b52e | 1422 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1423 | &dev_attr_arp_interval.attr, |
1424 | &dev_attr_arp_ip_target.attr, | |
1425 | &dev_attr_downdelay.attr, | |
1426 | &dev_attr_updelay.attr, | |
1427 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1428 | &dev_attr_ad_select.attr, |
43cb76d9 | 1429 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1430 | &dev_attr_num_grat_arp.attr, |
1431 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1432 | &dev_attr_miimon.attr, |
1433 | &dev_attr_primary.attr, | |
a549952a | 1434 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1435 | &dev_attr_use_carrier.attr, |
1436 | &dev_attr_active_slave.attr, | |
1437 | &dev_attr_mii_status.attr, | |
1438 | &dev_attr_ad_aggregator.attr, | |
1439 | &dev_attr_ad_num_ports.attr, | |
1440 | &dev_attr_ad_actor_key.attr, | |
1441 | &dev_attr_ad_partner_key.attr, | |
1442 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1443 | &dev_attr_queue_id.attr, |
ebd8e497 | 1444 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1445 | &dev_attr_resend_igmp.attr, |
655f8919 | 1446 | &dev_attr_min_links.attr, |
7eacd038 | 1447 | &dev_attr_lp_interval.attr, |
73958329 | 1448 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1449 | NULL, |
1450 | }; | |
1451 | ||
1452 | static struct attribute_group bonding_group = { | |
1453 | .name = "bonding", | |
1454 | .attrs = per_bond_attrs, | |
1455 | }; | |
1456 | ||
1457 | /* | |
1458 | * Initialize sysfs. This sets up the bonding_masters file in | |
1459 | * /sys/class/net. | |
1460 | */ | |
4c22400a | 1461 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1462 | { |
b8a9787e | 1463 | int ret; |
b76cdba9 | 1464 | |
4c22400a | 1465 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1466 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1467 | |
58292cbe TH |
1468 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1469 | bn->net); | |
877cbd36 JV |
1470 | /* |
1471 | * Permit multiple loads of the module by ignoring failures to | |
1472 | * create the bonding_masters sysfs file. Bonding devices | |
1473 | * created by second or subsequent loads of the module will | |
1474 | * not be listed in, or controllable by, bonding_masters, but | |
1475 | * will have the usual "bonding" sysfs directory. | |
1476 | * | |
1477 | * This is done to preserve backwards compatibility for | |
1478 | * initscripts/sysconfig, which load bonding multiple times to | |
1479 | * configure multiple bonding devices. | |
1480 | */ | |
1481 | if (ret == -EEXIST) { | |
38d2f38b | 1482 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1483 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1484 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1485 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1486 | class_attr_bonding_masters.attr.name); |
130aa61a | 1487 | ret = 0; |
877cbd36 | 1488 | } |
b76cdba9 MW |
1489 | |
1490 | return ret; | |
1491 | ||
1492 | } | |
1493 | ||
1494 | /* | |
1495 | * Remove /sys/class/net/bonding_masters. | |
1496 | */ | |
4c22400a | 1497 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1498 | { |
58292cbe | 1499 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1500 | } |
1501 | ||
1502 | /* | |
1503 | * Initialize sysfs for each bond. This sets up and registers | |
1504 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1505 | */ | |
6151b3d4 | 1506 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1507 | { |
6151b3d4 | 1508 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1509 | } |
1510 |