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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); |
b76cdba9 MW |
266 | |
267 | return sprintf(buf, "%s %d\n", | |
268 | bond_mode_tbl[bond->params.mode].modename, | |
7bd46508 | 269 | bond->params.mode); |
b76cdba9 MW |
270 | } |
271 | ||
43cb76d9 GKH |
272 | static ssize_t bonding_store_mode(struct device *d, |
273 | struct device_attribute *attr, | |
274 | const char *buf, size_t count) | |
b76cdba9 | 275 | { |
72be35fe | 276 | int new_value, ret; |
43cb76d9 | 277 | struct bonding *bond = to_bond(d); |
b76cdba9 | 278 | |
ece95f7f | 279 | new_value = bond_parse_parm(buf, bond_mode_tbl); |
b76cdba9 | 280 | if (new_value < 0) { |
a4aee5c8 JP |
281 | pr_err("%s: Ignoring invalid mode value %.*s.\n", |
282 | bond->dev->name, (int)strlen(buf) - 1, buf); | |
72be35fe | 283 | return -EINVAL; |
c5cb002f | 284 | } |
72be35fe JP |
285 | if (!rtnl_trylock()) |
286 | return restart_syscall(); | |
287 | ||
288 | ret = bond_option_mode_set(bond, new_value); | |
289 | if (!ret) { | |
290 | pr_info("%s: setting mode to %s (%d).\n", | |
291 | bond->dev->name, bond_mode_tbl[new_value].modename, | |
292 | new_value); | |
293 | ret = count; | |
c5cb002f | 294 | } |
8f903c70 | 295 | |
ea6836dd | 296 | rtnl_unlock(); |
b76cdba9 MW |
297 | return ret; |
298 | } | |
3d632c3f SH |
299 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
300 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
301 | |
302 | /* | |
3d632c3f | 303 | * Show and set the bonding transmit hash method. |
b76cdba9 | 304 | */ |
43cb76d9 GKH |
305 | static ssize_t bonding_show_xmit_hash(struct device *d, |
306 | struct device_attribute *attr, | |
307 | char *buf) | |
b76cdba9 | 308 | { |
43cb76d9 | 309 | struct bonding *bond = to_bond(d); |
b76cdba9 | 310 | |
8e4b9329 WF |
311 | return sprintf(buf, "%s %d\n", |
312 | xmit_hashtype_tbl[bond->params.xmit_policy].modename, | |
313 | bond->params.xmit_policy); | |
b76cdba9 MW |
314 | } |
315 | ||
43cb76d9 GKH |
316 | static ssize_t bonding_store_xmit_hash(struct device *d, |
317 | struct device_attribute *attr, | |
318 | const char *buf, size_t count) | |
b76cdba9 | 319 | { |
f70161c6 | 320 | int new_value, ret; |
43cb76d9 | 321 | struct bonding *bond = to_bond(d); |
b76cdba9 | 322 | |
ece95f7f | 323 | new_value = bond_parse_parm(buf, xmit_hashtype_tbl); |
b76cdba9 | 324 | if (new_value < 0) { |
a4aee5c8 | 325 | pr_err("%s: Ignoring invalid xmit hash policy value %.*s.\n", |
b76cdba9 MW |
326 | bond->dev->name, |
327 | (int)strlen(buf) - 1, buf); | |
f70161c6 | 328 | return -EINVAL; |
b76cdba9 | 329 | } |
53edee2c | 330 | |
f70161c6 | 331 | if (!rtnl_trylock()) |
332 | return restart_syscall(); | |
333 | ||
334 | ret = bond_option_xmit_hash_policy_set(bond, new_value); | |
335 | if (!ret) | |
336 | ret = count; | |
337 | ||
338 | rtnl_unlock(); | |
b76cdba9 MW |
339 | return ret; |
340 | } | |
3d632c3f SH |
341 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
342 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 343 | |
f5b2b966 JV |
344 | /* |
345 | * Show and set arp_validate. | |
346 | */ | |
43cb76d9 GKH |
347 | static ssize_t bonding_show_arp_validate(struct device *d, |
348 | struct device_attribute *attr, | |
349 | char *buf) | |
f5b2b966 | 350 | { |
43cb76d9 | 351 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
352 | |
353 | return sprintf(buf, "%s %d\n", | |
354 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 355 | bond->params.arp_validate); |
f5b2b966 JV |
356 | } |
357 | ||
43cb76d9 GKH |
358 | static ssize_t bonding_store_arp_validate(struct device *d, |
359 | struct device_attribute *attr, | |
360 | const char *buf, size_t count) | |
f5b2b966 | 361 | { |
43cb76d9 | 362 | struct bonding *bond = to_bond(d); |
29c49482 | 363 | int new_value, ret; |
f5b2b966 | 364 | |
ece95f7f | 365 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 366 | if (new_value < 0) { |
a4aee5c8 | 367 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 368 | bond->dev->name, buf); |
29c49482 | 369 | return -EINVAL; |
5bb9e0b5 | 370 | } |
29c49482 | 371 | if (!rtnl_trylock()) |
372 | return restart_syscall(); | |
373 | ||
374 | ret = bond_option_arp_validate_set(bond, new_value); | |
375 | if (!ret) | |
376 | ret = count; | |
377 | ||
5c5038dc | 378 | rtnl_unlock(); |
f5b2b966 | 379 | |
5c5038dc | 380 | return ret; |
f5b2b966 JV |
381 | } |
382 | ||
3d632c3f SH |
383 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
384 | bonding_store_arp_validate); | |
8599b52e VF |
385 | /* |
386 | * Show and set arp_all_targets. | |
387 | */ | |
388 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
389 | struct device_attribute *attr, | |
390 | char *buf) | |
391 | { | |
392 | struct bonding *bond = to_bond(d); | |
393 | int value = bond->params.arp_all_targets; | |
394 | ||
395 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
396 | value); | |
397 | } | |
398 | ||
399 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
400 | struct device_attribute *attr, | |
401 | const char *buf, size_t count) | |
402 | { | |
403 | struct bonding *bond = to_bond(d); | |
d5c84254 | 404 | int new_value, ret; |
8599b52e VF |
405 | |
406 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
407 | if (new_value < 0) { | |
408 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
409 | bond->dev->name, buf); | |
410 | return -EINVAL; | |
411 | } | |
8599b52e | 412 | |
d5c84254 | 413 | if (!rtnl_trylock()) |
414 | return restart_syscall(); | |
8599b52e | 415 | |
d5c84254 | 416 | ret = bond_option_arp_all_targets_set(bond, new_value); |
417 | if (!ret) | |
418 | ret = count; | |
419 | ||
420 | rtnl_unlock(); | |
421 | ||
422 | return ret; | |
8599b52e VF |
423 | } |
424 | ||
425 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
426 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 427 | |
dd957c57 JV |
428 | /* |
429 | * Show and store fail_over_mac. User only allowed to change the | |
430 | * value when there are no slaves. | |
431 | */ | |
3d632c3f SH |
432 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
433 | struct device_attribute *attr, | |
434 | char *buf) | |
dd957c57 JV |
435 | { |
436 | struct bonding *bond = to_bond(d); | |
437 | ||
3915c1e8 JV |
438 | return sprintf(buf, "%s %d\n", |
439 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
440 | bond->params.fail_over_mac); | |
dd957c57 JV |
441 | } |
442 | ||
3d632c3f SH |
443 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
444 | struct device_attribute *attr, | |
445 | const char *buf, size_t count) | |
dd957c57 | 446 | { |
89901972 | 447 | int new_value, ret; |
dd957c57 JV |
448 | struct bonding *bond = to_bond(d); |
449 | ||
3915c1e8 JV |
450 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
451 | if (new_value < 0) { | |
a4aee5c8 | 452 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 453 | bond->dev->name, buf); |
89901972 | 454 | return -EINVAL; |
dd957c57 JV |
455 | } |
456 | ||
89901972 | 457 | if (!rtnl_trylock()) |
458 | return restart_syscall(); | |
459 | ||
460 | ret = bond_option_fail_over_mac_set(bond, new_value); | |
461 | if (!ret) | |
462 | ret = count; | |
3915c1e8 | 463 | |
9402b746 | 464 | rtnl_unlock(); |
465 | return ret; | |
dd957c57 JV |
466 | } |
467 | ||
3d632c3f SH |
468 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
469 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 470 | |
b76cdba9 MW |
471 | /* |
472 | * Show and set the arp timer interval. There are two tricky bits | |
473 | * here. First, if ARP monitoring is activated, then we must disable | |
474 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
475 | * start it. | |
476 | */ | |
43cb76d9 GKH |
477 | static ssize_t bonding_show_arp_interval(struct device *d, |
478 | struct device_attribute *attr, | |
479 | char *buf) | |
b76cdba9 | 480 | { |
43cb76d9 | 481 | struct bonding *bond = to_bond(d); |
b76cdba9 | 482 | |
7bd46508 | 483 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
484 | } |
485 | ||
43cb76d9 GKH |
486 | static ssize_t bonding_store_arp_interval(struct device *d, |
487 | struct device_attribute *attr, | |
488 | const char *buf, size_t count) | |
b76cdba9 | 489 | { |
43cb76d9 | 490 | struct bonding *bond = to_bond(d); |
06151dbc | 491 | int new_value, ret; |
b76cdba9 MW |
492 | |
493 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 494 | pr_err("%s: no arp_interval value specified.\n", |
06151dbc | 495 | bond->dev->name); |
496 | return -EINVAL; | |
b76cdba9 | 497 | } |
06151dbc | 498 | |
499 | if (!rtnl_trylock()) | |
500 | return restart_syscall(); | |
501 | ||
502 | ret = bond_option_arp_interval_set(bond, new_value); | |
503 | if (!ret) | |
504 | ret = count; | |
505 | ||
fbb0c41b | 506 | rtnl_unlock(); |
b76cdba9 MW |
507 | return ret; |
508 | } | |
3d632c3f SH |
509 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
510 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
511 | |
512 | /* | |
513 | * Show and set the arp targets. | |
514 | */ | |
43cb76d9 GKH |
515 | static ssize_t bonding_show_arp_targets(struct device *d, |
516 | struct device_attribute *attr, | |
517 | char *buf) | |
b76cdba9 MW |
518 | { |
519 | int i, res = 0; | |
43cb76d9 | 520 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
521 | |
522 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
523 | if (bond->params.arp_targets[i]) | |
63779436 HH |
524 | res += sprintf(buf + res, "%pI4 ", |
525 | &bond->params.arp_targets[i]); | |
b76cdba9 | 526 | } |
1dcdcd69 WF |
527 | if (res) |
528 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
529 | return res; |
530 | } | |
531 | ||
43cb76d9 GKH |
532 | static ssize_t bonding_store_arp_targets(struct device *d, |
533 | struct device_attribute *attr, | |
534 | const char *buf, size_t count) | |
b76cdba9 | 535 | { |
43cb76d9 | 536 | struct bonding *bond = to_bond(d); |
7f28fa10 | 537 | __be32 target; |
538 | int ret = -EPERM; | |
4d1ae5fb | 539 | |
7f28fa10 | 540 | if (!in4_pton(buf + 1, -1, (u8 *)&target, -1, NULL)) { |
541 | pr_err("%s: invalid ARP target %pI4 specified\n", | |
542 | bond->dev->name, &target); | |
543 | return -EPERM; | |
f9de11a1 | 544 | } |
8599b52e | 545 | |
7f28fa10 | 546 | if (!rtnl_trylock()) |
547 | return restart_syscall(); | |
8599b52e | 548 | |
7f28fa10 | 549 | if (buf[0] == '+') |
550 | ret = bond_option_arp_ip_target_add(bond, target); | |
551 | else if (buf[0] == '-') | |
552 | ret = bond_option_arp_ip_target_rem(bond, target); | |
553 | else | |
a4aee5c8 JP |
554 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
555 | bond->dev->name); | |
b76cdba9 | 556 | |
7f28fa10 | 557 | if (!ret) |
558 | ret = count; | |
559 | ||
4d1ae5fb | 560 | rtnl_unlock(); |
b76cdba9 MW |
561 | return ret; |
562 | } | |
43cb76d9 | 563 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
564 | |
565 | /* | |
566 | * Show and set the up and down delays. These must be multiples of the | |
567 | * MII monitoring value, and are stored internally as the multiplier. | |
568 | * Thus, we must translate to MS for the real world. | |
569 | */ | |
43cb76d9 GKH |
570 | static ssize_t bonding_show_downdelay(struct device *d, |
571 | struct device_attribute *attr, | |
572 | char *buf) | |
b76cdba9 | 573 | { |
43cb76d9 | 574 | struct bonding *bond = to_bond(d); |
b76cdba9 | 575 | |
7bd46508 | 576 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
577 | } |
578 | ||
43cb76d9 GKH |
579 | static ssize_t bonding_store_downdelay(struct device *d, |
580 | struct device_attribute *attr, | |
581 | const char *buf, size_t count) | |
b76cdba9 | 582 | { |
c7461f9b | 583 | int new_value, ret; |
43cb76d9 | 584 | struct bonding *bond = to_bond(d); |
b76cdba9 | 585 | |
b76cdba9 | 586 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 587 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
c7461f9b | 588 | return -EINVAL; |
b76cdba9 | 589 | } |
b76cdba9 | 590 | |
c7461f9b | 591 | if (!rtnl_trylock()) |
592 | return restart_syscall(); | |
593 | ||
594 | ret = bond_option_downdelay_set(bond, new_value); | |
595 | if (!ret) | |
596 | ret = count; | |
b76cdba9 | 597 | |
b869ccfa | 598 | rtnl_unlock(); |
b76cdba9 MW |
599 | return ret; |
600 | } | |
3d632c3f SH |
601 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
602 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 603 | |
43cb76d9 GKH |
604 | static ssize_t bonding_show_updelay(struct device *d, |
605 | struct device_attribute *attr, | |
606 | char *buf) | |
b76cdba9 | 607 | { |
43cb76d9 | 608 | struct bonding *bond = to_bond(d); |
b76cdba9 | 609 | |
7bd46508 | 610 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
611 | |
612 | } | |
613 | ||
43cb76d9 GKH |
614 | static ssize_t bonding_store_updelay(struct device *d, |
615 | struct device_attribute *attr, | |
616 | const char *buf, size_t count) | |
b76cdba9 | 617 | { |
25852e29 | 618 | int new_value, ret; |
43cb76d9 | 619 | struct bonding *bond = to_bond(d); |
b76cdba9 | 620 | |
b76cdba9 | 621 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 622 | pr_err("%s: no up delay value specified.\n", |
25852e29 | 623 | bond->dev->name); |
624 | return -EINVAL; | |
b76cdba9 MW |
625 | } |
626 | ||
25852e29 | 627 | if (!rtnl_trylock()) |
628 | return restart_syscall(); | |
629 | ||
630 | ret = bond_option_updelay_set(bond, new_value); | |
631 | if (!ret) | |
632 | ret = count; | |
633 | ||
b869ccfa | 634 | rtnl_unlock(); |
b76cdba9 MW |
635 | return ret; |
636 | } | |
3d632c3f SH |
637 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
638 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
639 | |
640 | /* | |
641 | * Show and set the LACP interval. Interface must be down, and the mode | |
642 | * must be set to 802.3ad mode. | |
643 | */ | |
43cb76d9 GKH |
644 | static ssize_t bonding_show_lacp(struct device *d, |
645 | struct device_attribute *attr, | |
646 | char *buf) | |
b76cdba9 | 647 | { |
43cb76d9 | 648 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
649 | |
650 | return sprintf(buf, "%s %d\n", | |
651 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 652 | bond->params.lacp_fast); |
b76cdba9 MW |
653 | } |
654 | ||
43cb76d9 GKH |
655 | static ssize_t bonding_store_lacp(struct device *d, |
656 | struct device_attribute *attr, | |
657 | const char *buf, size_t count) | |
b76cdba9 | 658 | { |
43cb76d9 | 659 | struct bonding *bond = to_bond(d); |
998e40bb | 660 | int new_value, ret; |
b76cdba9 | 661 | |
ece95f7f | 662 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
998e40bb | 663 | if (new_value < 0) { |
a4aee5c8 | 664 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 665 | bond->dev->name, (int)strlen(buf) - 1, buf); |
998e40bb | 666 | return -EINVAL; |
b76cdba9 | 667 | } |
c509316b | 668 | |
998e40bb | 669 | if (!rtnl_trylock()) |
670 | return restart_syscall(); | |
671 | ||
672 | ret = bond_option_lacp_rate_set(bond, new_value); | |
673 | if (!ret) | |
674 | ret = count; | |
675 | ||
676 | rtnl_unlock(); | |
b76cdba9 MW |
677 | return ret; |
678 | } | |
3d632c3f SH |
679 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
680 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 681 | |
655f8919 | 682 | static ssize_t bonding_show_min_links(struct device *d, |
683 | struct device_attribute *attr, | |
684 | char *buf) | |
685 | { | |
686 | struct bonding *bond = to_bond(d); | |
687 | ||
688 | return sprintf(buf, "%d\n", bond->params.min_links); | |
689 | } | |
690 | ||
691 | static ssize_t bonding_store_min_links(struct device *d, | |
692 | struct device_attribute *attr, | |
693 | const char *buf, size_t count) | |
694 | { | |
695 | struct bonding *bond = to_bond(d); | |
696 | int ret; | |
697 | unsigned int new_value; | |
698 | ||
699 | ret = kstrtouint(buf, 0, &new_value); | |
700 | if (ret < 0) { | |
701 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
702 | bond->dev->name, buf); | |
703 | return ret; | |
704 | } | |
705 | ||
7d101008 | 706 | if (!rtnl_trylock()) |
707 | return restart_syscall(); | |
708 | ||
709 | ret = bond_option_min_links_set(bond, new_value); | |
710 | if (!ret) | |
711 | ret = count; | |
712 | ||
713 | rtnl_unlock(); | |
714 | return ret; | |
655f8919 | 715 | } |
716 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
717 | bonding_show_min_links, bonding_store_min_links); | |
718 | ||
fd989c83 JV |
719 | static ssize_t bonding_show_ad_select(struct device *d, |
720 | struct device_attribute *attr, | |
721 | char *buf) | |
722 | { | |
723 | struct bonding *bond = to_bond(d); | |
724 | ||
725 | return sprintf(buf, "%s %d\n", | |
726 | ad_select_tbl[bond->params.ad_select].modename, | |
727 | bond->params.ad_select); | |
728 | } | |
729 | ||
730 | ||
731 | static ssize_t bonding_store_ad_select(struct device *d, | |
732 | struct device_attribute *attr, | |
733 | const char *buf, size_t count) | |
734 | { | |
ec029fac | 735 | int new_value, ret; |
fd989c83 JV |
736 | struct bonding *bond = to_bond(d); |
737 | ||
fd989c83 | 738 | new_value = bond_parse_parm(buf, ad_select_tbl); |
ec029fac | 739 | if (new_value < 0) { |
a4aee5c8 | 740 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 | 741 | bond->dev->name, (int)strlen(buf) - 1, buf); |
ec029fac | 742 | return -EINVAL; |
fd989c83 | 743 | } |
ec029fac | 744 | |
745 | if (!rtnl_trylock()) | |
746 | return restart_syscall(); | |
747 | ||
748 | ret = bond_option_ad_select_set(bond, new_value); | |
749 | if (!ret) | |
750 | ret = count; | |
751 | ||
752 | rtnl_unlock(); | |
fd989c83 JV |
753 | return ret; |
754 | } | |
3d632c3f SH |
755 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
756 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 757 | |
ad246c99 BH |
758 | /* |
759 | * Show and set the number of peer notifications to send after a failover event. | |
760 | */ | |
761 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
762 | struct device_attribute *attr, | |
763 | char *buf) | |
764 | { | |
765 | struct bonding *bond = to_bond(d); | |
766 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
767 | } | |
768 | ||
769 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
770 | struct device_attribute *attr, | |
771 | const char *buf, size_t count) | |
772 | { | |
773 | struct bonding *bond = to_bond(d); | |
2c9839c1 | 774 | u8 new_value; |
775 | int ret; | |
776 | ||
777 | ret = kstrtou8(buf, 10, &new_value); | |
0b23810d | 778 | if (ret) { |
2c9839c1 | 779 | pr_err("%s: invalid value %s specified.\n", |
780 | bond->dev->name, buf); | |
781 | return ret; | |
782 | } | |
783 | ||
784 | if (!rtnl_trylock()) | |
785 | return restart_syscall(); | |
786 | ||
787 | ret = bond_option_num_peer_notif_set(bond, new_value); | |
788 | if (!ret) | |
789 | ret = count; | |
790 | ||
791 | rtnl_unlock(); | |
792 | return ret; | |
ad246c99 BH |
793 | } |
794 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
795 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
796 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
797 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
798 | ||
b76cdba9 MW |
799 | /* |
800 | * Show and set the MII monitor interval. There are two tricky bits | |
801 | * here. First, if MII monitoring is activated, then we must disable | |
802 | * ARP monitoring. Second, if the timer isn't running, we must | |
803 | * start it. | |
804 | */ | |
43cb76d9 GKH |
805 | static ssize_t bonding_show_miimon(struct device *d, |
806 | struct device_attribute *attr, | |
807 | char *buf) | |
b76cdba9 | 808 | { |
43cb76d9 | 809 | struct bonding *bond = to_bond(d); |
b76cdba9 | 810 | |
7bd46508 | 811 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
812 | } |
813 | ||
43cb76d9 GKH |
814 | static ssize_t bonding_store_miimon(struct device *d, |
815 | struct device_attribute *attr, | |
816 | const char *buf, size_t count) | |
b76cdba9 | 817 | { |
eecdaa6e | 818 | int new_value, ret; |
43cb76d9 | 819 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
820 | |
821 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 822 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 | 823 | bond->dev->name); |
eecdaa6e | 824 | return -EINVAL; |
b76cdba9 | 825 | } |
eecdaa6e | 826 | |
827 | if (!rtnl_trylock()) | |
828 | return restart_syscall(); | |
829 | ||
830 | ret = bond_option_miimon_set(bond, new_value); | |
831 | if (!ret) | |
832 | ret = count; | |
833 | ||
fbb0c41b | 834 | rtnl_unlock(); |
b76cdba9 MW |
835 | return ret; |
836 | } | |
3d632c3f SH |
837 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
838 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
839 | |
840 | /* | |
841 | * Show and set the primary slave. The store function is much | |
842 | * simpler than bonding_store_slaves function because it only needs to | |
843 | * handle one interface name. | |
844 | * The bond must be a mode that supports a primary for this be | |
845 | * set. | |
846 | */ | |
43cb76d9 GKH |
847 | static ssize_t bonding_show_primary(struct device *d, |
848 | struct device_attribute *attr, | |
849 | char *buf) | |
b76cdba9 MW |
850 | { |
851 | int count = 0; | |
43cb76d9 | 852 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
853 | |
854 | if (bond->primary_slave) | |
7bd46508 | 855 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
856 | |
857 | return count; | |
858 | } | |
859 | ||
43cb76d9 GKH |
860 | static ssize_t bonding_store_primary(struct device *d, |
861 | struct device_attribute *attr, | |
862 | const char *buf, size_t count) | |
b76cdba9 | 863 | { |
43cb76d9 | 864 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 865 | char ifname[IFNAMSIZ]; |
0a98a0d1 | 866 | int ret; |
b76cdba9 | 867 | |
eb6e98a1 | 868 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
0a98a0d1 | 869 | if (ifname[0] == '\n') |
870 | ifname[0] = '\0'; | |
b76cdba9 | 871 | |
0a98a0d1 | 872 | if (!rtnl_trylock()) |
873 | return restart_syscall(); | |
f4bb2e9c | 874 | |
0a98a0d1 | 875 | ret = bond_option_primary_set(bond, ifname); |
876 | if (!ret) | |
877 | ret = count; | |
8a93664d | 878 | |
6603a6f2 | 879 | rtnl_unlock(); |
0a98a0d1 | 880 | return ret; |
b76cdba9 | 881 | } |
3d632c3f SH |
882 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
883 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 884 | |
a549952a JP |
885 | /* |
886 | * Show and set the primary_reselect flag. | |
887 | */ | |
888 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
889 | struct device_attribute *attr, | |
890 | char *buf) | |
891 | { | |
892 | struct bonding *bond = to_bond(d); | |
893 | ||
894 | return sprintf(buf, "%s %d\n", | |
895 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
896 | bond->params.primary_reselect); | |
897 | } | |
898 | ||
899 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
900 | struct device_attribute *attr, | |
901 | const char *buf, size_t count) | |
902 | { | |
8a41ae44 | 903 | int new_value, ret; |
a549952a JP |
904 | struct bonding *bond = to_bond(d); |
905 | ||
a549952a JP |
906 | new_value = bond_parse_parm(buf, pri_reselect_tbl); |
907 | if (new_value < 0) { | |
a4aee5c8 | 908 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
909 | bond->dev->name, |
910 | (int) strlen(buf) - 1, buf); | |
8a41ae44 | 911 | return -EINVAL; |
a549952a JP |
912 | } |
913 | ||
8a41ae44 | 914 | if (!rtnl_trylock()) |
915 | return restart_syscall(); | |
916 | ||
917 | ret = bond_option_primary_reselect_set(bond, new_value); | |
918 | if (!ret) | |
919 | ret = count; | |
a549952a | 920 | |
a549952a JP |
921 | rtnl_unlock(); |
922 | return ret; | |
923 | } | |
924 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
925 | bonding_show_primary_reselect, | |
926 | bonding_store_primary_reselect); | |
927 | ||
b76cdba9 MW |
928 | /* |
929 | * Show and set the use_carrier flag. | |
930 | */ | |
43cb76d9 GKH |
931 | static ssize_t bonding_show_carrier(struct device *d, |
932 | struct device_attribute *attr, | |
933 | char *buf) | |
b76cdba9 | 934 | { |
43cb76d9 | 935 | struct bonding *bond = to_bond(d); |
b76cdba9 | 936 | |
7bd46508 | 937 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
938 | } |
939 | ||
43cb76d9 GKH |
940 | static ssize_t bonding_store_carrier(struct device *d, |
941 | struct device_attribute *attr, | |
942 | const char *buf, size_t count) | |
b76cdba9 | 943 | { |
9f53e14e | 944 | int new_value, ret; |
43cb76d9 | 945 | struct bonding *bond = to_bond(d); |
b76cdba9 | 946 | |
b76cdba9 | 947 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 948 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 | 949 | bond->dev->name); |
9f53e14e | 950 | return -EINVAL; |
b76cdba9 | 951 | } |
9f53e14e | 952 | |
953 | if (!rtnl_trylock()) | |
954 | return restart_syscall(); | |
955 | ||
956 | ret = bond_option_use_carrier_set(bond, new_value); | |
957 | if (!ret) | |
958 | ret = count; | |
959 | ||
960 | rtnl_unlock(); | |
672bda33 | 961 | return ret; |
b76cdba9 | 962 | } |
3d632c3f SH |
963 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
964 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
965 | |
966 | ||
967 | /* | |
968 | * Show and set currently active_slave. | |
969 | */ | |
43cb76d9 GKH |
970 | static ssize_t bonding_show_active_slave(struct device *d, |
971 | struct device_attribute *attr, | |
972 | char *buf) | |
b76cdba9 | 973 | { |
43cb76d9 | 974 | struct bonding *bond = to_bond(d); |
752d48b5 | 975 | struct net_device *slave_dev; |
16cd0160 | 976 | int count = 0; |
b76cdba9 | 977 | |
278b2083 | 978 | rcu_read_lock(); |
752d48b5 JP |
979 | slave_dev = bond_option_active_slave_get_rcu(bond); |
980 | if (slave_dev) | |
981 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 982 | rcu_read_unlock(); |
983 | ||
b76cdba9 MW |
984 | return count; |
985 | } | |
986 | ||
43cb76d9 GKH |
987 | static ssize_t bonding_store_active_slave(struct device *d, |
988 | struct device_attribute *attr, | |
989 | const char *buf, size_t count) | |
b76cdba9 | 990 | { |
d9e32b21 | 991 | int ret; |
43cb76d9 | 992 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 993 | char ifname[IFNAMSIZ]; |
d9e32b21 | 994 | struct net_device *dev; |
b76cdba9 | 995 | |
496a60cd EB |
996 | if (!rtnl_trylock()) |
997 | return restart_syscall(); | |
e843fa50 | 998 | |
c84e1590 | 999 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 1000 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
1001 | dev = NULL; |
1002 | } else { | |
1003 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
1004 | if (!dev) { | |
1005 | ret = -ENODEV; | |
1006 | goto out; | |
b76cdba9 | 1007 | } |
b76cdba9 | 1008 | } |
f4bb2e9c | 1009 | |
d9e32b21 JP |
1010 | ret = bond_option_active_slave_set(bond, dev); |
1011 | if (!ret) | |
1012 | ret = count; | |
e843fa50 | 1013 | |
d9e32b21 | 1014 | out: |
6603a6f2 JV |
1015 | rtnl_unlock(); |
1016 | ||
d9e32b21 | 1017 | return ret; |
b76cdba9 MW |
1018 | |
1019 | } | |
3d632c3f SH |
1020 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
1021 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
1022 | |
1023 | ||
1024 | /* | |
1025 | * Show link status of the bond interface. | |
1026 | */ | |
43cb76d9 GKH |
1027 | static ssize_t bonding_show_mii_status(struct device *d, |
1028 | struct device_attribute *attr, | |
1029 | char *buf) | |
b76cdba9 | 1030 | { |
43cb76d9 | 1031 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1032 | |
278b2083 | 1033 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1034 | } |
43cb76d9 | 1035 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1036 | |
b76cdba9 MW |
1037 | /* |
1038 | * Show current 802.3ad aggregator ID. | |
1039 | */ | |
43cb76d9 GKH |
1040 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1041 | struct device_attribute *attr, | |
1042 | char *buf) | |
b76cdba9 MW |
1043 | { |
1044 | int count = 0; | |
43cb76d9 | 1045 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1046 | |
1047 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1048 | struct ad_info ad_info; | |
3d632c3f | 1049 | count = sprintf(buf, "%d\n", |
318debd8 | 1050 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1051 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1052 | } |
b76cdba9 MW |
1053 | |
1054 | return count; | |
1055 | } | |
43cb76d9 | 1056 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1057 | |
1058 | ||
1059 | /* | |
1060 | * Show number of active 802.3ad ports. | |
1061 | */ | |
43cb76d9 GKH |
1062 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1063 | struct device_attribute *attr, | |
1064 | char *buf) | |
b76cdba9 MW |
1065 | { |
1066 | int count = 0; | |
43cb76d9 | 1067 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1068 | |
1069 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1070 | struct ad_info ad_info; | |
3d632c3f | 1071 | count = sprintf(buf, "%d\n", |
318debd8 | 1072 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1073 | ? 0 : ad_info.ports); |
b76cdba9 | 1074 | } |
b76cdba9 MW |
1075 | |
1076 | return count; | |
1077 | } | |
43cb76d9 | 1078 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1079 | |
1080 | ||
1081 | /* | |
1082 | * Show current 802.3ad actor key. | |
1083 | */ | |
43cb76d9 GKH |
1084 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1085 | struct device_attribute *attr, | |
1086 | char *buf) | |
b76cdba9 MW |
1087 | { |
1088 | int count = 0; | |
43cb76d9 | 1089 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1090 | |
1091 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1092 | struct ad_info ad_info; | |
3d632c3f | 1093 | count = sprintf(buf, "%d\n", |
318debd8 | 1094 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1095 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1096 | } |
b76cdba9 MW |
1097 | |
1098 | return count; | |
1099 | } | |
43cb76d9 | 1100 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1101 | |
1102 | ||
1103 | /* | |
1104 | * Show current 802.3ad partner key. | |
1105 | */ | |
43cb76d9 GKH |
1106 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1107 | struct device_attribute *attr, | |
1108 | char *buf) | |
b76cdba9 MW |
1109 | { |
1110 | int count = 0; | |
43cb76d9 | 1111 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1112 | |
1113 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1114 | struct ad_info ad_info; | |
3d632c3f | 1115 | count = sprintf(buf, "%d\n", |
318debd8 | 1116 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1117 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1118 | } |
b76cdba9 MW |
1119 | |
1120 | return count; | |
1121 | } | |
43cb76d9 | 1122 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1123 | |
1124 | ||
1125 | /* | |
1126 | * Show current 802.3ad partner mac. | |
1127 | */ | |
43cb76d9 GKH |
1128 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1129 | struct device_attribute *attr, | |
1130 | char *buf) | |
b76cdba9 MW |
1131 | { |
1132 | int count = 0; | |
43cb76d9 | 1133 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1134 | |
1135 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1136 | struct ad_info ad_info; | |
3d632c3f | 1137 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1138 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1139 | } |
b76cdba9 MW |
1140 | |
1141 | return count; | |
1142 | } | |
43cb76d9 | 1143 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1144 | |
bb1d9123 AG |
1145 | /* |
1146 | * Show the queue_ids of the slaves in the current bond. | |
1147 | */ | |
1148 | static ssize_t bonding_show_queue_id(struct device *d, | |
1149 | struct device_attribute *attr, | |
1150 | char *buf) | |
1151 | { | |
bb1d9123 | 1152 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1153 | struct list_head *iter; |
dec1e90e | 1154 | struct slave *slave; |
1155 | int res = 0; | |
bb1d9123 AG |
1156 | |
1157 | if (!rtnl_trylock()) | |
1158 | return restart_syscall(); | |
1159 | ||
9caff1e7 | 1160 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1161 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1162 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1163 | if ((PAGE_SIZE - res) > 10) |
1164 | res = PAGE_SIZE - 10; | |
1165 | res += sprintf(buf + res, "++more++ "); | |
1166 | break; | |
1167 | } | |
1168 | res += sprintf(buf + res, "%s:%d ", | |
1169 | slave->dev->name, slave->queue_id); | |
1170 | } | |
bb1d9123 AG |
1171 | if (res) |
1172 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1173 | |
bb1d9123 | 1174 | rtnl_unlock(); |
dec1e90e | 1175 | |
bb1d9123 AG |
1176 | return res; |
1177 | } | |
1178 | ||
1179 | /* | |
1180 | * Set the queue_ids of the slaves in the current bond. The bond | |
1181 | * interface must be enslaved for this to work. | |
1182 | */ | |
1183 | static ssize_t bonding_store_queue_id(struct device *d, | |
1184 | struct device_attribute *attr, | |
1185 | const char *buffer, size_t count) | |
1186 | { | |
1187 | struct slave *slave, *update_slave; | |
1188 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1189 | struct list_head *iter; |
bb1d9123 | 1190 | u16 qid; |
dec1e90e | 1191 | int ret = count; |
bb1d9123 AG |
1192 | char *delim; |
1193 | struct net_device *sdev = NULL; | |
1194 | ||
1195 | if (!rtnl_trylock()) | |
1196 | return restart_syscall(); | |
1197 | ||
1198 | /* delim will point to queue id if successful */ | |
1199 | delim = strchr(buffer, ':'); | |
1200 | if (!delim) | |
1201 | goto err_no_cmd; | |
1202 | ||
1203 | /* | |
1204 | * Terminate string that points to device name and bump it | |
1205 | * up one, so we can read the queue id there. | |
1206 | */ | |
1207 | *delim = '\0'; | |
1208 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1209 | goto err_no_cmd; | |
1210 | ||
1211 | /* Check buffer length, valid ifname and queue id */ | |
1212 | if (strlen(buffer) > IFNAMSIZ || | |
1213 | !dev_valid_name(buffer) || | |
8a540ff9 | 1214 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1215 | goto err_no_cmd; |
1216 | ||
1217 | /* Get the pointer to that interface if it exists */ | |
1218 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1219 | if (!sdev) | |
1220 | goto err_no_cmd; | |
1221 | ||
bb1d9123 AG |
1222 | /* Search for thes slave and check for duplicate qids */ |
1223 | update_slave = NULL; | |
9caff1e7 | 1224 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1225 | if (sdev == slave->dev) |
1226 | /* | |
1227 | * We don't need to check the matching | |
1228 | * slave for dups, since we're overwriting it | |
1229 | */ | |
1230 | update_slave = slave; | |
1231 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1232 | goto err_no_cmd; |
bb1d9123 AG |
1233 | } |
1234 | } | |
1235 | ||
1236 | if (!update_slave) | |
4d1ae5fb | 1237 | goto err_no_cmd; |
bb1d9123 AG |
1238 | |
1239 | /* Actually set the qids for the slave */ | |
1240 | update_slave->queue_id = qid; | |
1241 | ||
bb1d9123 AG |
1242 | out: |
1243 | rtnl_unlock(); | |
1244 | return ret; | |
1245 | ||
bb1d9123 AG |
1246 | err_no_cmd: |
1247 | pr_info("invalid input for queue_id set for %s.\n", | |
1248 | bond->dev->name); | |
1249 | ret = -EPERM; | |
1250 | goto out; | |
1251 | } | |
1252 | ||
1253 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1254 | bonding_store_queue_id); | |
1255 | ||
1256 | ||
ebd8e497 AG |
1257 | /* |
1258 | * Show and set the all_slaves_active flag. | |
1259 | */ | |
1260 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1261 | struct device_attribute *attr, | |
1262 | char *buf) | |
1263 | { | |
1264 | struct bonding *bond = to_bond(d); | |
1265 | ||
1266 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1267 | } | |
1268 | ||
1269 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1270 | struct device_attribute *attr, | |
1271 | const char *buf, size_t count) | |
1272 | { | |
ebd8e497 | 1273 | struct bonding *bond = to_bond(d); |
1cc0b1e3 | 1274 | int new_value, ret; |
4d1ae5fb | 1275 | |
ebd8e497 AG |
1276 | if (sscanf(buf, "%d", &new_value) != 1) { |
1277 | pr_err("%s: no all_slaves_active value specified.\n", | |
1278 | bond->dev->name); | |
1cc0b1e3 | 1279 | return -EINVAL; |
ebd8e497 AG |
1280 | } |
1281 | ||
1cc0b1e3 | 1282 | if (!rtnl_trylock()) |
1283 | return restart_syscall(); | |
ebd8e497 | 1284 | |
1cc0b1e3 | 1285 | ret = bond_option_all_slaves_active_set(bond, new_value); |
1286 | if (!ret) | |
1287 | ret = count; | |
b76cdba9 | 1288 | |
4d1ae5fb | 1289 | rtnl_unlock(); |
672bda33 | 1290 | return ret; |
ebd8e497 AG |
1291 | } |
1292 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1293 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1294 | |
c2952c31 FL |
1295 | /* |
1296 | * Show and set the number of IGMP membership reports to send on link failure | |
1297 | */ | |
1298 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1299 | struct device_attribute *attr, |
1300 | char *buf) | |
c2952c31 FL |
1301 | { |
1302 | struct bonding *bond = to_bond(d); | |
1303 | ||
1304 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1305 | } | |
1306 | ||
1307 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1308 | struct device_attribute *attr, |
1309 | const char *buf, size_t count) | |
c2952c31 FL |
1310 | { |
1311 | int new_value, ret = count; | |
1312 | struct bonding *bond = to_bond(d); | |
1313 | ||
1314 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1315 | pr_err("%s: no resend_igmp value specified.\n", | |
1316 | bond->dev->name); | |
d8838de7 | 1317 | return -EINVAL; |
c2952c31 FL |
1318 | } |
1319 | ||
d8838de7 | 1320 | if (!rtnl_trylock()) |
1321 | return restart_syscall(); | |
c2952c31 | 1322 | |
d8838de7 | 1323 | ret = bond_option_resend_igmp_set(bond, new_value); |
1324 | if (!ret) | |
1325 | ret = count; | |
1326 | ||
1327 | rtnl_unlock(); | |
c2952c31 FL |
1328 | return ret; |
1329 | } | |
1330 | ||
1331 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1332 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1333 | ||
7eacd038 NH |
1334 | |
1335 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1336 | struct device_attribute *attr, | |
1337 | char *buf) | |
1338 | { | |
1339 | struct bonding *bond = to_bond(d); | |
1340 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1341 | } | |
1342 | ||
1343 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1344 | struct device_attribute *attr, | |
1345 | const char *buf, size_t count) | |
1346 | { | |
1347 | struct bonding *bond = to_bond(d); | |
8d836d09 | 1348 | int new_value, ret; |
7eacd038 NH |
1349 | |
1350 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1351 | pr_err("%s: no lp interval value specified.\n", | |
1352 | bond->dev->name); | |
8d836d09 | 1353 | return -EINVAL; |
7eacd038 NH |
1354 | } |
1355 | ||
8d836d09 | 1356 | if (!rtnl_trylock()) |
1357 | return restart_syscall(); | |
7eacd038 | 1358 | |
8d836d09 | 1359 | ret = bond_option_lp_interval_set(bond, new_value); |
1360 | if (!ret) | |
1361 | ret = count; | |
1362 | ||
1363 | rtnl_unlock(); | |
7eacd038 NH |
1364 | return ret; |
1365 | } | |
1366 | ||
1367 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1368 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1369 | ||
73958329 NA |
1370 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1371 | struct device_attribute *attr, | |
1372 | char *buf) | |
1373 | { | |
1374 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 1375 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
a752a8b9 | 1376 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 NA |
1377 | } |
1378 | ||
1379 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1380 | struct device_attribute *attr, | |
1381 | const char *buf, size_t count) | |
1382 | { | |
1383 | struct bonding *bond = to_bond(d); | |
c13ab3ff | 1384 | int new_value, ret; |
73958329 NA |
1385 | |
1386 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1387 | pr_err("%s: no packets_per_slave value specified.\n", | |
1388 | bond->dev->name); | |
c13ab3ff | 1389 | return -EINVAL; |
73958329 | 1390 | } |
c13ab3ff | 1391 | |
1392 | if (!rtnl_trylock()) | |
1393 | return restart_syscall(); | |
1394 | ||
1395 | ret = bond_option_packets_per_slave_set(bond, new_value); | |
1396 | if (!ret) | |
1397 | ret = count; | |
1398 | ||
1399 | rtnl_unlock(); | |
73958329 NA |
1400 | return ret; |
1401 | } | |
1402 | ||
1403 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1404 | bonding_show_packets_per_slave, | |
1405 | bonding_store_packets_per_slave); | |
1406 | ||
b76cdba9 | 1407 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1408 | &dev_attr_slaves.attr, |
1409 | &dev_attr_mode.attr, | |
dd957c57 | 1410 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1411 | &dev_attr_arp_validate.attr, |
8599b52e | 1412 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1413 | &dev_attr_arp_interval.attr, |
1414 | &dev_attr_arp_ip_target.attr, | |
1415 | &dev_attr_downdelay.attr, | |
1416 | &dev_attr_updelay.attr, | |
1417 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1418 | &dev_attr_ad_select.attr, |
43cb76d9 | 1419 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1420 | &dev_attr_num_grat_arp.attr, |
1421 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1422 | &dev_attr_miimon.attr, |
1423 | &dev_attr_primary.attr, | |
a549952a | 1424 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1425 | &dev_attr_use_carrier.attr, |
1426 | &dev_attr_active_slave.attr, | |
1427 | &dev_attr_mii_status.attr, | |
1428 | &dev_attr_ad_aggregator.attr, | |
1429 | &dev_attr_ad_num_ports.attr, | |
1430 | &dev_attr_ad_actor_key.attr, | |
1431 | &dev_attr_ad_partner_key.attr, | |
1432 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1433 | &dev_attr_queue_id.attr, |
ebd8e497 | 1434 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1435 | &dev_attr_resend_igmp.attr, |
655f8919 | 1436 | &dev_attr_min_links.attr, |
7eacd038 | 1437 | &dev_attr_lp_interval.attr, |
73958329 | 1438 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1439 | NULL, |
1440 | }; | |
1441 | ||
1442 | static struct attribute_group bonding_group = { | |
1443 | .name = "bonding", | |
1444 | .attrs = per_bond_attrs, | |
1445 | }; | |
1446 | ||
1447 | /* | |
1448 | * Initialize sysfs. This sets up the bonding_masters file in | |
1449 | * /sys/class/net. | |
1450 | */ | |
4c22400a | 1451 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1452 | { |
b8a9787e | 1453 | int ret; |
b76cdba9 | 1454 | |
4c22400a | 1455 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1456 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1457 | |
58292cbe TH |
1458 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1459 | bn->net); | |
877cbd36 JV |
1460 | /* |
1461 | * Permit multiple loads of the module by ignoring failures to | |
1462 | * create the bonding_masters sysfs file. Bonding devices | |
1463 | * created by second or subsequent loads of the module will | |
1464 | * not be listed in, or controllable by, bonding_masters, but | |
1465 | * will have the usual "bonding" sysfs directory. | |
1466 | * | |
1467 | * This is done to preserve backwards compatibility for | |
1468 | * initscripts/sysconfig, which load bonding multiple times to | |
1469 | * configure multiple bonding devices. | |
1470 | */ | |
1471 | if (ret == -EEXIST) { | |
38d2f38b | 1472 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1473 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1474 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1475 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1476 | class_attr_bonding_masters.attr.name); |
130aa61a | 1477 | ret = 0; |
877cbd36 | 1478 | } |
b76cdba9 MW |
1479 | |
1480 | return ret; | |
1481 | ||
1482 | } | |
1483 | ||
1484 | /* | |
1485 | * Remove /sys/class/net/bonding_masters. | |
1486 | */ | |
4c22400a | 1487 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1488 | { |
58292cbe | 1489 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1490 | } |
1491 | ||
1492 | /* | |
1493 | * Initialize sysfs for each bond. This sets up and registers | |
1494 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1495 | */ | |
6151b3d4 | 1496 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1497 | { |
6151b3d4 | 1498 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1499 | } |
1500 |