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b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
adf8d3ff | 15 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
b76cdba9 MW |
16 | * |
17 | * The full GNU General Public License is included in this distribution in the | |
18 | * file called LICENSE. | |
19 | * | |
b76cdba9 | 20 | */ |
a4aee5c8 JP |
21 | |
22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
23 | ||
b76cdba9 MW |
24 | #include <linux/kernel.h> |
25 | #include <linux/module.h> | |
b76cdba9 | 26 | #include <linux/device.h> |
d43c36dc | 27 | #include <linux/sched.h> |
b76cdba9 MW |
28 | #include <linux/fs.h> |
29 | #include <linux/types.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/inetdevice.h> | |
33 | #include <linux/in.h> | |
34 | #include <linux/sysfs.h> | |
b76cdba9 MW |
35 | #include <linux/ctype.h> |
36 | #include <linux/inet.h> | |
37 | #include <linux/rtnetlink.h> | |
5c5129b5 | 38 | #include <linux/etherdevice.h> |
881d966b | 39 | #include <net/net_namespace.h> |
ec87fd3b EB |
40 | #include <net/netns/generic.h> |
41 | #include <linux/nsproxy.h> | |
b76cdba9 | 42 | |
b76cdba9 | 43 | #include "bonding.h" |
5a03cdb7 | 44 | |
3d632c3f | 45 | #define to_dev(obj) container_of(obj, struct device, kobj) |
454d7c9b | 46 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 47 | |
b76cdba9 MW |
48 | /* |
49 | * "show" function for the bond_masters attribute. | |
50 | * The class parameter is ignored. | |
51 | */ | |
28812fe1 AK |
52 | static ssize_t bonding_show_bonds(struct class *cls, |
53 | struct class_attribute *attr, | |
54 | char *buf) | |
b76cdba9 | 55 | { |
4c22400a EB |
56 | struct bond_net *bn = |
57 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
58 | int res = 0; |
59 | struct bonding *bond; | |
60 | ||
7e083840 | 61 | rtnl_lock(); |
b76cdba9 | 62 | |
ec87fd3b | 63 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
64 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
65 | /* not enough space for another interface name */ | |
66 | if ((PAGE_SIZE - res) > 10) | |
67 | res = PAGE_SIZE - 10; | |
b8843665 | 68 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
69 | break; |
70 | } | |
b8843665 | 71 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 72 | } |
1dcdcd69 WF |
73 | if (res) |
74 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
75 | |
76 | rtnl_unlock(); | |
b76cdba9 MW |
77 | return res; |
78 | } | |
79 | ||
4c22400a | 80 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
81 | { |
82 | struct bonding *bond; | |
83 | ||
ec87fd3b | 84 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
85 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
86 | return bond->dev; | |
87 | } | |
88 | return NULL; | |
89 | } | |
90 | ||
b76cdba9 MW |
91 | /* |
92 | * "store" function for the bond_masters attribute. This is what | |
93 | * creates and deletes entire bonds. | |
94 | * | |
95 | * The class parameter is ignored. | |
96 | * | |
97 | */ | |
98 | ||
3d632c3f | 99 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 100 | struct class_attribute *attr, |
3d632c3f | 101 | const char *buffer, size_t count) |
b76cdba9 | 102 | { |
4c22400a EB |
103 | struct bond_net *bn = |
104 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
105 | char command[IFNAMSIZ + 1] = {0, }; |
106 | char *ifname; | |
027ea041 | 107 | int rv, res = count; |
b76cdba9 | 108 | |
b76cdba9 MW |
109 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
110 | ifname = command + 1; | |
111 | if ((strlen(command) <= 1) || | |
112 | !dev_valid_name(ifname)) | |
113 | goto err_no_cmd; | |
114 | ||
115 | if (command[0] == '+') { | |
a4aee5c8 | 116 | pr_info("%s is being created...\n", ifname); |
4c22400a | 117 | rv = bond_create(bn->net, ifname); |
027ea041 | 118 | if (rv) { |
5f86cad1 PO |
119 | if (rv == -EEXIST) |
120 | pr_info("%s already exists.\n", ifname); | |
121 | else | |
122 | pr_info("%s creation failed.\n", ifname); | |
027ea041 | 123 | res = rv; |
b76cdba9 | 124 | } |
373500db SH |
125 | } else if (command[0] == '-') { |
126 | struct net_device *bond_dev; | |
b76cdba9 | 127 | |
027ea041 | 128 | rtnl_lock(); |
4c22400a | 129 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 130 | if (bond_dev) { |
a4aee5c8 | 131 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
132 | unregister_netdevice(bond_dev); |
133 | } else { | |
a4aee5c8 | 134 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
135 | res = -ENODEV; |
136 | } | |
137 | rtnl_unlock(); | |
138 | } else | |
139 | goto err_no_cmd; | |
027ea041 | 140 | |
373500db SH |
141 | /* Always return either count or an error. If you return 0, you'll |
142 | * get called forever, which is bad. | |
143 | */ | |
144 | return res; | |
b76cdba9 MW |
145 | |
146 | err_no_cmd: | |
a4aee5c8 | 147 | pr_err("no command found in bonding_masters. Use +ifname or -ifname.\n"); |
c4ebc66a | 148 | return -EPERM; |
b76cdba9 | 149 | } |
373500db | 150 | |
b76cdba9 | 151 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
152 | static const struct class_attribute class_attr_bonding_masters = { |
153 | .attr = { | |
154 | .name = "bonding_masters", | |
155 | .mode = S_IWUSR | S_IRUGO, | |
156 | }, | |
157 | .show = bonding_show_bonds, | |
158 | .store = bonding_store_bonds, | |
4c22400a | 159 | }; |
b76cdba9 | 160 | |
b76cdba9 MW |
161 | /* |
162 | * Show the slaves in the current bond. | |
163 | */ | |
43cb76d9 GKH |
164 | static ssize_t bonding_show_slaves(struct device *d, |
165 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 166 | { |
43cb76d9 | 167 | struct bonding *bond = to_bond(d); |
9caff1e7 | 168 | struct list_head *iter; |
dec1e90e | 169 | struct slave *slave; |
170 | int res = 0; | |
b76cdba9 | 171 | |
4d1ae5fb | 172 | if (!rtnl_trylock()) |
173 | return restart_syscall(); | |
174 | ||
9caff1e7 | 175 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
176 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
177 | /* not enough space for another interface name */ | |
178 | if ((PAGE_SIZE - res) > 10) | |
179 | res = PAGE_SIZE - 10; | |
7bd46508 | 180 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
181 | break; |
182 | } | |
183 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
184 | } | |
4d1ae5fb | 185 | |
186 | rtnl_unlock(); | |
187 | ||
1dcdcd69 WF |
188 | if (res) |
189 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 190 | |
b76cdba9 MW |
191 | return res; |
192 | } | |
193 | ||
194 | /* | |
d6641ccf | 195 | * Set the slaves in the current bond. |
f9f3545e JP |
196 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
197 | * All hard work should be done there. | |
b76cdba9 | 198 | */ |
43cb76d9 GKH |
199 | static ssize_t bonding_store_slaves(struct device *d, |
200 | struct device_attribute *attr, | |
201 | const char *buffer, size_t count) | |
b76cdba9 MW |
202 | { |
203 | char command[IFNAMSIZ + 1] = { 0, }; | |
204 | char *ifname; | |
f9f3545e JP |
205 | int res, ret = count; |
206 | struct net_device *dev; | |
43cb76d9 | 207 | struct bonding *bond = to_bond(d); |
b76cdba9 | 208 | |
496a60cd EB |
209 | if (!rtnl_trylock()) |
210 | return restart_syscall(); | |
027ea041 | 211 | |
b76cdba9 MW |
212 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
213 | ifname = command + 1; | |
214 | if ((strlen(command) <= 1) || | |
215 | !dev_valid_name(ifname)) | |
216 | goto err_no_cmd; | |
217 | ||
f9f3545e JP |
218 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); |
219 | if (!dev) { | |
220 | pr_info("%s: Interface %s does not exist!\n", | |
221 | bond->dev->name, ifname); | |
222 | ret = -ENODEV; | |
223 | goto out; | |
224 | } | |
b76cdba9 | 225 | |
f9f3545e JP |
226 | switch (command[0]) { |
227 | case '+': | |
228 | pr_info("%s: Adding slave %s.\n", bond->dev->name, dev->name); | |
b76cdba9 | 229 | res = bond_enslave(bond->dev, dev); |
f9f3545e | 230 | break; |
3d632c3f | 231 | |
f9f3545e JP |
232 | case '-': |
233 | pr_info("%s: Removing slave %s.\n", bond->dev->name, dev->name); | |
234 | res = bond_release(bond->dev, dev); | |
235 | break; | |
b76cdba9 | 236 | |
f9f3545e JP |
237 | default: |
238 | goto err_no_cmd; | |
b76cdba9 MW |
239 | } |
240 | ||
f9f3545e JP |
241 | if (res) |
242 | ret = res; | |
243 | goto out; | |
244 | ||
b76cdba9 | 245 | err_no_cmd: |
a4aee5c8 JP |
246 | pr_err("no command found in slaves file for bond %s. Use +ifname or -ifname.\n", |
247 | bond->dev->name); | |
b76cdba9 MW |
248 | ret = -EPERM; |
249 | ||
250 | out: | |
027ea041 | 251 | rtnl_unlock(); |
b76cdba9 MW |
252 | return ret; |
253 | } | |
254 | ||
3d632c3f SH |
255 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
256 | bonding_store_slaves); | |
b76cdba9 MW |
257 | |
258 | /* | |
259 | * Show and set the bonding mode. The bond interface must be down to | |
260 | * change the mode. | |
261 | */ | |
43cb76d9 GKH |
262 | static ssize_t bonding_show_mode(struct device *d, |
263 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 264 | { |
43cb76d9 | 265 | struct bonding *bond = to_bond(d); |
2b3798d5 | 266 | struct bond_opt_value *val; |
b76cdba9 | 267 | |
2b3798d5 NA |
268 | val = bond_opt_get_val(BOND_OPT_MODE, bond->params.mode); |
269 | ||
270 | return sprintf(buf, "%s %d\n", val->string, bond->params.mode); | |
b76cdba9 MW |
271 | } |
272 | ||
43cb76d9 GKH |
273 | static ssize_t bonding_store_mode(struct device *d, |
274 | struct device_attribute *attr, | |
275 | const char *buf, size_t count) | |
b76cdba9 | 276 | { |
43cb76d9 | 277 | struct bonding *bond = to_bond(d); |
2b3798d5 | 278 | int ret; |
b76cdba9 | 279 | |
2b3798d5 NA |
280 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MODE, (char *)buf); |
281 | if (!ret) | |
72be35fe | 282 | ret = count; |
8f903c70 | 283 | |
b76cdba9 MW |
284 | return ret; |
285 | } | |
3d632c3f SH |
286 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
287 | bonding_show_mode, bonding_store_mode); | |
b76cdba9 MW |
288 | |
289 | /* | |
3d632c3f | 290 | * Show and set the bonding transmit hash method. |
b76cdba9 | 291 | */ |
43cb76d9 GKH |
292 | static ssize_t bonding_show_xmit_hash(struct device *d, |
293 | struct device_attribute *attr, | |
294 | char *buf) | |
b76cdba9 | 295 | { |
43cb76d9 | 296 | struct bonding *bond = to_bond(d); |
a4b32ce7 NA |
297 | struct bond_opt_value *val; |
298 | ||
299 | val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy); | |
b76cdba9 | 300 | |
a4b32ce7 | 301 | return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy); |
b76cdba9 MW |
302 | } |
303 | ||
43cb76d9 GKH |
304 | static ssize_t bonding_store_xmit_hash(struct device *d, |
305 | struct device_attribute *attr, | |
306 | const char *buf, size_t count) | |
b76cdba9 | 307 | { |
43cb76d9 | 308 | struct bonding *bond = to_bond(d); |
a4b32ce7 | 309 | int ret; |
b76cdba9 | 310 | |
a4b32ce7 | 311 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_XMIT_HASH, (char *)buf); |
f70161c6 | 312 | if (!ret) |
313 | ret = count; | |
314 | ||
b76cdba9 MW |
315 | return ret; |
316 | } | |
3d632c3f SH |
317 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
318 | bonding_show_xmit_hash, bonding_store_xmit_hash); | |
b76cdba9 | 319 | |
f5b2b966 JV |
320 | /* |
321 | * Show and set arp_validate. | |
322 | */ | |
43cb76d9 GKH |
323 | static ssize_t bonding_show_arp_validate(struct device *d, |
324 | struct device_attribute *attr, | |
325 | char *buf) | |
f5b2b966 | 326 | { |
43cb76d9 | 327 | struct bonding *bond = to_bond(d); |
f5b2b966 JV |
328 | |
329 | return sprintf(buf, "%s %d\n", | |
330 | arp_validate_tbl[bond->params.arp_validate].modename, | |
7bd46508 | 331 | bond->params.arp_validate); |
f5b2b966 JV |
332 | } |
333 | ||
43cb76d9 GKH |
334 | static ssize_t bonding_store_arp_validate(struct device *d, |
335 | struct device_attribute *attr, | |
336 | const char *buf, size_t count) | |
f5b2b966 | 337 | { |
43cb76d9 | 338 | struct bonding *bond = to_bond(d); |
29c49482 | 339 | int new_value, ret; |
f5b2b966 | 340 | |
ece95f7f | 341 | new_value = bond_parse_parm(buf, arp_validate_tbl); |
f5b2b966 | 342 | if (new_value < 0) { |
a4aee5c8 | 343 | pr_err("%s: Ignoring invalid arp_validate value %s\n", |
f5b2b966 | 344 | bond->dev->name, buf); |
29c49482 | 345 | return -EINVAL; |
5bb9e0b5 | 346 | } |
29c49482 | 347 | if (!rtnl_trylock()) |
348 | return restart_syscall(); | |
349 | ||
350 | ret = bond_option_arp_validate_set(bond, new_value); | |
351 | if (!ret) | |
352 | ret = count; | |
353 | ||
5c5038dc | 354 | rtnl_unlock(); |
f5b2b966 | 355 | |
5c5038dc | 356 | return ret; |
f5b2b966 JV |
357 | } |
358 | ||
3d632c3f SH |
359 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
360 | bonding_store_arp_validate); | |
8599b52e VF |
361 | /* |
362 | * Show and set arp_all_targets. | |
363 | */ | |
364 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
365 | struct device_attribute *attr, | |
366 | char *buf) | |
367 | { | |
368 | struct bonding *bond = to_bond(d); | |
369 | int value = bond->params.arp_all_targets; | |
370 | ||
371 | return sprintf(buf, "%s %d\n", arp_all_targets_tbl[value].modename, | |
372 | value); | |
373 | } | |
374 | ||
375 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
376 | struct device_attribute *attr, | |
377 | const char *buf, size_t count) | |
378 | { | |
379 | struct bonding *bond = to_bond(d); | |
d5c84254 | 380 | int new_value, ret; |
8599b52e VF |
381 | |
382 | new_value = bond_parse_parm(buf, arp_all_targets_tbl); | |
383 | if (new_value < 0) { | |
384 | pr_err("%s: Ignoring invalid arp_all_targets value %s\n", | |
385 | bond->dev->name, buf); | |
386 | return -EINVAL; | |
387 | } | |
8599b52e | 388 | |
d5c84254 | 389 | if (!rtnl_trylock()) |
390 | return restart_syscall(); | |
8599b52e | 391 | |
d5c84254 | 392 | ret = bond_option_arp_all_targets_set(bond, new_value); |
393 | if (!ret) | |
394 | ret = count; | |
395 | ||
396 | rtnl_unlock(); | |
397 | ||
398 | return ret; | |
8599b52e VF |
399 | } |
400 | ||
401 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
402 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 403 | |
dd957c57 JV |
404 | /* |
405 | * Show and store fail_over_mac. User only allowed to change the | |
406 | * value when there are no slaves. | |
407 | */ | |
3d632c3f SH |
408 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
409 | struct device_attribute *attr, | |
410 | char *buf) | |
dd957c57 JV |
411 | { |
412 | struct bonding *bond = to_bond(d); | |
413 | ||
3915c1e8 JV |
414 | return sprintf(buf, "%s %d\n", |
415 | fail_over_mac_tbl[bond->params.fail_over_mac].modename, | |
416 | bond->params.fail_over_mac); | |
dd957c57 JV |
417 | } |
418 | ||
3d632c3f SH |
419 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
420 | struct device_attribute *attr, | |
421 | const char *buf, size_t count) | |
dd957c57 | 422 | { |
89901972 | 423 | int new_value, ret; |
dd957c57 JV |
424 | struct bonding *bond = to_bond(d); |
425 | ||
3915c1e8 JV |
426 | new_value = bond_parse_parm(buf, fail_over_mac_tbl); |
427 | if (new_value < 0) { | |
a4aee5c8 | 428 | pr_err("%s: Ignoring invalid fail_over_mac value %s.\n", |
3915c1e8 | 429 | bond->dev->name, buf); |
89901972 | 430 | return -EINVAL; |
dd957c57 JV |
431 | } |
432 | ||
89901972 | 433 | if (!rtnl_trylock()) |
434 | return restart_syscall(); | |
435 | ||
436 | ret = bond_option_fail_over_mac_set(bond, new_value); | |
437 | if (!ret) | |
438 | ret = count; | |
3915c1e8 | 439 | |
9402b746 | 440 | rtnl_unlock(); |
441 | return ret; | |
dd957c57 JV |
442 | } |
443 | ||
3d632c3f SH |
444 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
445 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 446 | |
b76cdba9 MW |
447 | /* |
448 | * Show and set the arp timer interval. There are two tricky bits | |
449 | * here. First, if ARP monitoring is activated, then we must disable | |
450 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
451 | * start it. | |
452 | */ | |
43cb76d9 GKH |
453 | static ssize_t bonding_show_arp_interval(struct device *d, |
454 | struct device_attribute *attr, | |
455 | char *buf) | |
b76cdba9 | 456 | { |
43cb76d9 | 457 | struct bonding *bond = to_bond(d); |
b76cdba9 | 458 | |
7bd46508 | 459 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
460 | } |
461 | ||
43cb76d9 GKH |
462 | static ssize_t bonding_store_arp_interval(struct device *d, |
463 | struct device_attribute *attr, | |
464 | const char *buf, size_t count) | |
b76cdba9 | 465 | { |
43cb76d9 | 466 | struct bonding *bond = to_bond(d); |
06151dbc | 467 | int new_value, ret; |
b76cdba9 MW |
468 | |
469 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 470 | pr_err("%s: no arp_interval value specified.\n", |
06151dbc | 471 | bond->dev->name); |
472 | return -EINVAL; | |
b76cdba9 | 473 | } |
06151dbc | 474 | |
475 | if (!rtnl_trylock()) | |
476 | return restart_syscall(); | |
477 | ||
478 | ret = bond_option_arp_interval_set(bond, new_value); | |
479 | if (!ret) | |
480 | ret = count; | |
481 | ||
fbb0c41b | 482 | rtnl_unlock(); |
b76cdba9 MW |
483 | return ret; |
484 | } | |
3d632c3f SH |
485 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
486 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
487 | |
488 | /* | |
489 | * Show and set the arp targets. | |
490 | */ | |
43cb76d9 GKH |
491 | static ssize_t bonding_show_arp_targets(struct device *d, |
492 | struct device_attribute *attr, | |
493 | char *buf) | |
b76cdba9 MW |
494 | { |
495 | int i, res = 0; | |
43cb76d9 | 496 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
497 | |
498 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
499 | if (bond->params.arp_targets[i]) | |
63779436 HH |
500 | res += sprintf(buf + res, "%pI4 ", |
501 | &bond->params.arp_targets[i]); | |
b76cdba9 | 502 | } |
1dcdcd69 WF |
503 | if (res) |
504 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
505 | return res; |
506 | } | |
507 | ||
43cb76d9 GKH |
508 | static ssize_t bonding_store_arp_targets(struct device *d, |
509 | struct device_attribute *attr, | |
510 | const char *buf, size_t count) | |
b76cdba9 | 511 | { |
43cb76d9 | 512 | struct bonding *bond = to_bond(d); |
7f28fa10 | 513 | __be32 target; |
514 | int ret = -EPERM; | |
4d1ae5fb | 515 | |
7f28fa10 | 516 | if (!in4_pton(buf + 1, -1, (u8 *)&target, -1, NULL)) { |
517 | pr_err("%s: invalid ARP target %pI4 specified\n", | |
518 | bond->dev->name, &target); | |
519 | return -EPERM; | |
f9de11a1 | 520 | } |
8599b52e | 521 | |
7f28fa10 | 522 | if (!rtnl_trylock()) |
523 | return restart_syscall(); | |
8599b52e | 524 | |
7f28fa10 | 525 | if (buf[0] == '+') |
526 | ret = bond_option_arp_ip_target_add(bond, target); | |
527 | else if (buf[0] == '-') | |
528 | ret = bond_option_arp_ip_target_rem(bond, target); | |
529 | else | |
a4aee5c8 JP |
530 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
531 | bond->dev->name); | |
b76cdba9 | 532 | |
7f28fa10 | 533 | if (!ret) |
534 | ret = count; | |
535 | ||
4d1ae5fb | 536 | rtnl_unlock(); |
b76cdba9 MW |
537 | return ret; |
538 | } | |
43cb76d9 | 539 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
540 | |
541 | /* | |
542 | * Show and set the up and down delays. These must be multiples of the | |
543 | * MII monitoring value, and are stored internally as the multiplier. | |
544 | * Thus, we must translate to MS for the real world. | |
545 | */ | |
43cb76d9 GKH |
546 | static ssize_t bonding_show_downdelay(struct device *d, |
547 | struct device_attribute *attr, | |
548 | char *buf) | |
b76cdba9 | 549 | { |
43cb76d9 | 550 | struct bonding *bond = to_bond(d); |
b76cdba9 | 551 | |
7bd46508 | 552 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
553 | } |
554 | ||
43cb76d9 GKH |
555 | static ssize_t bonding_store_downdelay(struct device *d, |
556 | struct device_attribute *attr, | |
557 | const char *buf, size_t count) | |
b76cdba9 | 558 | { |
c7461f9b | 559 | int new_value, ret; |
43cb76d9 | 560 | struct bonding *bond = to_bond(d); |
b76cdba9 | 561 | |
b76cdba9 | 562 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 563 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
c7461f9b | 564 | return -EINVAL; |
b76cdba9 | 565 | } |
b76cdba9 | 566 | |
c7461f9b | 567 | if (!rtnl_trylock()) |
568 | return restart_syscall(); | |
569 | ||
570 | ret = bond_option_downdelay_set(bond, new_value); | |
571 | if (!ret) | |
572 | ret = count; | |
b76cdba9 | 573 | |
b869ccfa | 574 | rtnl_unlock(); |
b76cdba9 MW |
575 | return ret; |
576 | } | |
3d632c3f SH |
577 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
578 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 579 | |
43cb76d9 GKH |
580 | static ssize_t bonding_show_updelay(struct device *d, |
581 | struct device_attribute *attr, | |
582 | char *buf) | |
b76cdba9 | 583 | { |
43cb76d9 | 584 | struct bonding *bond = to_bond(d); |
b76cdba9 | 585 | |
7bd46508 | 586 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
587 | |
588 | } | |
589 | ||
43cb76d9 GKH |
590 | static ssize_t bonding_store_updelay(struct device *d, |
591 | struct device_attribute *attr, | |
592 | const char *buf, size_t count) | |
b76cdba9 | 593 | { |
25852e29 | 594 | int new_value, ret; |
43cb76d9 | 595 | struct bonding *bond = to_bond(d); |
b76cdba9 | 596 | |
b76cdba9 | 597 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 598 | pr_err("%s: no up delay value specified.\n", |
25852e29 | 599 | bond->dev->name); |
600 | return -EINVAL; | |
b76cdba9 MW |
601 | } |
602 | ||
25852e29 | 603 | if (!rtnl_trylock()) |
604 | return restart_syscall(); | |
605 | ||
606 | ret = bond_option_updelay_set(bond, new_value); | |
607 | if (!ret) | |
608 | ret = count; | |
609 | ||
b869ccfa | 610 | rtnl_unlock(); |
b76cdba9 MW |
611 | return ret; |
612 | } | |
3d632c3f SH |
613 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
614 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
615 | |
616 | /* | |
617 | * Show and set the LACP interval. Interface must be down, and the mode | |
618 | * must be set to 802.3ad mode. | |
619 | */ | |
43cb76d9 GKH |
620 | static ssize_t bonding_show_lacp(struct device *d, |
621 | struct device_attribute *attr, | |
622 | char *buf) | |
b76cdba9 | 623 | { |
43cb76d9 | 624 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
625 | |
626 | return sprintf(buf, "%s %d\n", | |
627 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 628 | bond->params.lacp_fast); |
b76cdba9 MW |
629 | } |
630 | ||
43cb76d9 GKH |
631 | static ssize_t bonding_store_lacp(struct device *d, |
632 | struct device_attribute *attr, | |
633 | const char *buf, size_t count) | |
b76cdba9 | 634 | { |
43cb76d9 | 635 | struct bonding *bond = to_bond(d); |
998e40bb | 636 | int new_value, ret; |
b76cdba9 | 637 | |
ece95f7f | 638 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
998e40bb | 639 | if (new_value < 0) { |
a4aee5c8 | 640 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 641 | bond->dev->name, (int)strlen(buf) - 1, buf); |
998e40bb | 642 | return -EINVAL; |
b76cdba9 | 643 | } |
c509316b | 644 | |
998e40bb | 645 | if (!rtnl_trylock()) |
646 | return restart_syscall(); | |
647 | ||
648 | ret = bond_option_lacp_rate_set(bond, new_value); | |
649 | if (!ret) | |
650 | ret = count; | |
651 | ||
652 | rtnl_unlock(); | |
b76cdba9 MW |
653 | return ret; |
654 | } | |
3d632c3f SH |
655 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
656 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 657 | |
655f8919 | 658 | static ssize_t bonding_show_min_links(struct device *d, |
659 | struct device_attribute *attr, | |
660 | char *buf) | |
661 | { | |
662 | struct bonding *bond = to_bond(d); | |
663 | ||
664 | return sprintf(buf, "%d\n", bond->params.min_links); | |
665 | } | |
666 | ||
667 | static ssize_t bonding_store_min_links(struct device *d, | |
668 | struct device_attribute *attr, | |
669 | const char *buf, size_t count) | |
670 | { | |
671 | struct bonding *bond = to_bond(d); | |
672 | int ret; | |
673 | unsigned int new_value; | |
674 | ||
675 | ret = kstrtouint(buf, 0, &new_value); | |
676 | if (ret < 0) { | |
677 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
678 | bond->dev->name, buf); | |
679 | return ret; | |
680 | } | |
681 | ||
7d101008 | 682 | if (!rtnl_trylock()) |
683 | return restart_syscall(); | |
684 | ||
685 | ret = bond_option_min_links_set(bond, new_value); | |
686 | if (!ret) | |
687 | ret = count; | |
688 | ||
689 | rtnl_unlock(); | |
690 | return ret; | |
655f8919 | 691 | } |
692 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
693 | bonding_show_min_links, bonding_store_min_links); | |
694 | ||
fd989c83 JV |
695 | static ssize_t bonding_show_ad_select(struct device *d, |
696 | struct device_attribute *attr, | |
697 | char *buf) | |
698 | { | |
699 | struct bonding *bond = to_bond(d); | |
700 | ||
701 | return sprintf(buf, "%s %d\n", | |
702 | ad_select_tbl[bond->params.ad_select].modename, | |
703 | bond->params.ad_select); | |
704 | } | |
705 | ||
706 | ||
707 | static ssize_t bonding_store_ad_select(struct device *d, | |
708 | struct device_attribute *attr, | |
709 | const char *buf, size_t count) | |
710 | { | |
ec029fac | 711 | int new_value, ret; |
fd989c83 JV |
712 | struct bonding *bond = to_bond(d); |
713 | ||
fd989c83 | 714 | new_value = bond_parse_parm(buf, ad_select_tbl); |
ec029fac | 715 | if (new_value < 0) { |
a4aee5c8 | 716 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 | 717 | bond->dev->name, (int)strlen(buf) - 1, buf); |
ec029fac | 718 | return -EINVAL; |
fd989c83 | 719 | } |
ec029fac | 720 | |
721 | if (!rtnl_trylock()) | |
722 | return restart_syscall(); | |
723 | ||
724 | ret = bond_option_ad_select_set(bond, new_value); | |
725 | if (!ret) | |
726 | ret = count; | |
727 | ||
728 | rtnl_unlock(); | |
fd989c83 JV |
729 | return ret; |
730 | } | |
3d632c3f SH |
731 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
732 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 733 | |
ad246c99 BH |
734 | /* |
735 | * Show and set the number of peer notifications to send after a failover event. | |
736 | */ | |
737 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
738 | struct device_attribute *attr, | |
739 | char *buf) | |
740 | { | |
741 | struct bonding *bond = to_bond(d); | |
742 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
743 | } | |
744 | ||
745 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
746 | struct device_attribute *attr, | |
747 | const char *buf, size_t count) | |
748 | { | |
749 | struct bonding *bond = to_bond(d); | |
2c9839c1 | 750 | u8 new_value; |
751 | int ret; | |
752 | ||
753 | ret = kstrtou8(buf, 10, &new_value); | |
0b23810d | 754 | if (ret) { |
2c9839c1 | 755 | pr_err("%s: invalid value %s specified.\n", |
756 | bond->dev->name, buf); | |
757 | return ret; | |
758 | } | |
759 | ||
760 | if (!rtnl_trylock()) | |
761 | return restart_syscall(); | |
762 | ||
763 | ret = bond_option_num_peer_notif_set(bond, new_value); | |
764 | if (!ret) | |
765 | ret = count; | |
766 | ||
767 | rtnl_unlock(); | |
768 | return ret; | |
ad246c99 BH |
769 | } |
770 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
771 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
772 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
773 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
774 | ||
b76cdba9 MW |
775 | /* |
776 | * Show and set the MII monitor interval. There are two tricky bits | |
777 | * here. First, if MII monitoring is activated, then we must disable | |
778 | * ARP monitoring. Second, if the timer isn't running, we must | |
779 | * start it. | |
780 | */ | |
43cb76d9 GKH |
781 | static ssize_t bonding_show_miimon(struct device *d, |
782 | struct device_attribute *attr, | |
783 | char *buf) | |
b76cdba9 | 784 | { |
43cb76d9 | 785 | struct bonding *bond = to_bond(d); |
b76cdba9 | 786 | |
7bd46508 | 787 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
788 | } |
789 | ||
43cb76d9 GKH |
790 | static ssize_t bonding_store_miimon(struct device *d, |
791 | struct device_attribute *attr, | |
792 | const char *buf, size_t count) | |
b76cdba9 | 793 | { |
eecdaa6e | 794 | int new_value, ret; |
43cb76d9 | 795 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
796 | |
797 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 798 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 | 799 | bond->dev->name); |
eecdaa6e | 800 | return -EINVAL; |
b76cdba9 | 801 | } |
eecdaa6e | 802 | |
803 | if (!rtnl_trylock()) | |
804 | return restart_syscall(); | |
805 | ||
806 | ret = bond_option_miimon_set(bond, new_value); | |
807 | if (!ret) | |
808 | ret = count; | |
809 | ||
fbb0c41b | 810 | rtnl_unlock(); |
b76cdba9 MW |
811 | return ret; |
812 | } | |
3d632c3f SH |
813 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
814 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
815 | |
816 | /* | |
817 | * Show and set the primary slave. The store function is much | |
818 | * simpler than bonding_store_slaves function because it only needs to | |
819 | * handle one interface name. | |
820 | * The bond must be a mode that supports a primary for this be | |
821 | * set. | |
822 | */ | |
43cb76d9 GKH |
823 | static ssize_t bonding_show_primary(struct device *d, |
824 | struct device_attribute *attr, | |
825 | char *buf) | |
b76cdba9 MW |
826 | { |
827 | int count = 0; | |
43cb76d9 | 828 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
829 | |
830 | if (bond->primary_slave) | |
7bd46508 | 831 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
832 | |
833 | return count; | |
834 | } | |
835 | ||
43cb76d9 GKH |
836 | static ssize_t bonding_store_primary(struct device *d, |
837 | struct device_attribute *attr, | |
838 | const char *buf, size_t count) | |
b76cdba9 | 839 | { |
43cb76d9 | 840 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 841 | char ifname[IFNAMSIZ]; |
0a98a0d1 | 842 | int ret; |
b76cdba9 | 843 | |
eb6e98a1 | 844 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
0a98a0d1 | 845 | if (ifname[0] == '\n') |
846 | ifname[0] = '\0'; | |
b76cdba9 | 847 | |
0a98a0d1 | 848 | if (!rtnl_trylock()) |
849 | return restart_syscall(); | |
f4bb2e9c | 850 | |
0a98a0d1 | 851 | ret = bond_option_primary_set(bond, ifname); |
852 | if (!ret) | |
853 | ret = count; | |
8a93664d | 854 | |
6603a6f2 | 855 | rtnl_unlock(); |
0a98a0d1 | 856 | return ret; |
b76cdba9 | 857 | } |
3d632c3f SH |
858 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
859 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 860 | |
a549952a JP |
861 | /* |
862 | * Show and set the primary_reselect flag. | |
863 | */ | |
864 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
865 | struct device_attribute *attr, | |
866 | char *buf) | |
867 | { | |
868 | struct bonding *bond = to_bond(d); | |
869 | ||
870 | return sprintf(buf, "%s %d\n", | |
871 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
872 | bond->params.primary_reselect); | |
873 | } | |
874 | ||
875 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
876 | struct device_attribute *attr, | |
877 | const char *buf, size_t count) | |
878 | { | |
8a41ae44 | 879 | int new_value, ret; |
a549952a JP |
880 | struct bonding *bond = to_bond(d); |
881 | ||
a549952a JP |
882 | new_value = bond_parse_parm(buf, pri_reselect_tbl); |
883 | if (new_value < 0) { | |
a4aee5c8 | 884 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
885 | bond->dev->name, |
886 | (int) strlen(buf) - 1, buf); | |
8a41ae44 | 887 | return -EINVAL; |
a549952a JP |
888 | } |
889 | ||
8a41ae44 | 890 | if (!rtnl_trylock()) |
891 | return restart_syscall(); | |
892 | ||
893 | ret = bond_option_primary_reselect_set(bond, new_value); | |
894 | if (!ret) | |
895 | ret = count; | |
a549952a | 896 | |
a549952a JP |
897 | rtnl_unlock(); |
898 | return ret; | |
899 | } | |
900 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
901 | bonding_show_primary_reselect, | |
902 | bonding_store_primary_reselect); | |
903 | ||
b76cdba9 MW |
904 | /* |
905 | * Show and set the use_carrier flag. | |
906 | */ | |
43cb76d9 GKH |
907 | static ssize_t bonding_show_carrier(struct device *d, |
908 | struct device_attribute *attr, | |
909 | char *buf) | |
b76cdba9 | 910 | { |
43cb76d9 | 911 | struct bonding *bond = to_bond(d); |
b76cdba9 | 912 | |
7bd46508 | 913 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
914 | } |
915 | ||
43cb76d9 GKH |
916 | static ssize_t bonding_store_carrier(struct device *d, |
917 | struct device_attribute *attr, | |
918 | const char *buf, size_t count) | |
b76cdba9 | 919 | { |
9f53e14e | 920 | int new_value, ret; |
43cb76d9 | 921 | struct bonding *bond = to_bond(d); |
b76cdba9 | 922 | |
b76cdba9 | 923 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 924 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 | 925 | bond->dev->name); |
9f53e14e | 926 | return -EINVAL; |
b76cdba9 | 927 | } |
9f53e14e | 928 | |
929 | if (!rtnl_trylock()) | |
930 | return restart_syscall(); | |
931 | ||
932 | ret = bond_option_use_carrier_set(bond, new_value); | |
933 | if (!ret) | |
934 | ret = count; | |
935 | ||
936 | rtnl_unlock(); | |
672bda33 | 937 | return ret; |
b76cdba9 | 938 | } |
3d632c3f SH |
939 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
940 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
941 | |
942 | ||
943 | /* | |
944 | * Show and set currently active_slave. | |
945 | */ | |
43cb76d9 GKH |
946 | static ssize_t bonding_show_active_slave(struct device *d, |
947 | struct device_attribute *attr, | |
948 | char *buf) | |
b76cdba9 | 949 | { |
43cb76d9 | 950 | struct bonding *bond = to_bond(d); |
752d48b5 | 951 | struct net_device *slave_dev; |
16cd0160 | 952 | int count = 0; |
b76cdba9 | 953 | |
278b2083 | 954 | rcu_read_lock(); |
752d48b5 JP |
955 | slave_dev = bond_option_active_slave_get_rcu(bond); |
956 | if (slave_dev) | |
957 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 958 | rcu_read_unlock(); |
959 | ||
b76cdba9 MW |
960 | return count; |
961 | } | |
962 | ||
43cb76d9 GKH |
963 | static ssize_t bonding_store_active_slave(struct device *d, |
964 | struct device_attribute *attr, | |
965 | const char *buf, size_t count) | |
b76cdba9 | 966 | { |
d9e32b21 | 967 | int ret; |
43cb76d9 | 968 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 969 | char ifname[IFNAMSIZ]; |
d9e32b21 | 970 | struct net_device *dev; |
b76cdba9 | 971 | |
496a60cd EB |
972 | if (!rtnl_trylock()) |
973 | return restart_syscall(); | |
e843fa50 | 974 | |
c84e1590 | 975 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 976 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
977 | dev = NULL; |
978 | } else { | |
979 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
980 | if (!dev) { | |
981 | ret = -ENODEV; | |
982 | goto out; | |
b76cdba9 | 983 | } |
b76cdba9 | 984 | } |
f4bb2e9c | 985 | |
d9e32b21 JP |
986 | ret = bond_option_active_slave_set(bond, dev); |
987 | if (!ret) | |
988 | ret = count; | |
e843fa50 | 989 | |
d9e32b21 | 990 | out: |
6603a6f2 JV |
991 | rtnl_unlock(); |
992 | ||
d9e32b21 | 993 | return ret; |
b76cdba9 MW |
994 | |
995 | } | |
3d632c3f SH |
996 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
997 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
998 | |
999 | ||
1000 | /* | |
1001 | * Show link status of the bond interface. | |
1002 | */ | |
43cb76d9 GKH |
1003 | static ssize_t bonding_show_mii_status(struct device *d, |
1004 | struct device_attribute *attr, | |
1005 | char *buf) | |
b76cdba9 | 1006 | { |
43cb76d9 | 1007 | struct bonding *bond = to_bond(d); |
b76cdba9 | 1008 | |
278b2083 | 1009 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 1010 | } |
43cb76d9 | 1011 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 1012 | |
b76cdba9 MW |
1013 | /* |
1014 | * Show current 802.3ad aggregator ID. | |
1015 | */ | |
43cb76d9 GKH |
1016 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
1017 | struct device_attribute *attr, | |
1018 | char *buf) | |
b76cdba9 MW |
1019 | { |
1020 | int count = 0; | |
43cb76d9 | 1021 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1022 | |
1023 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1024 | struct ad_info ad_info; | |
3d632c3f | 1025 | count = sprintf(buf, "%d\n", |
318debd8 | 1026 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1027 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1028 | } |
b76cdba9 MW |
1029 | |
1030 | return count; | |
1031 | } | |
43cb76d9 | 1032 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1033 | |
1034 | ||
1035 | /* | |
1036 | * Show number of active 802.3ad ports. | |
1037 | */ | |
43cb76d9 GKH |
1038 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1039 | struct device_attribute *attr, | |
1040 | char *buf) | |
b76cdba9 MW |
1041 | { |
1042 | int count = 0; | |
43cb76d9 | 1043 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1044 | |
1045 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1046 | struct ad_info ad_info; | |
3d632c3f | 1047 | count = sprintf(buf, "%d\n", |
318debd8 | 1048 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1049 | ? 0 : ad_info.ports); |
b76cdba9 | 1050 | } |
b76cdba9 MW |
1051 | |
1052 | return count; | |
1053 | } | |
43cb76d9 | 1054 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1055 | |
1056 | ||
1057 | /* | |
1058 | * Show current 802.3ad actor key. | |
1059 | */ | |
43cb76d9 GKH |
1060 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1061 | struct device_attribute *attr, | |
1062 | char *buf) | |
b76cdba9 MW |
1063 | { |
1064 | int count = 0; | |
43cb76d9 | 1065 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1066 | |
1067 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1068 | struct ad_info ad_info; | |
3d632c3f | 1069 | count = sprintf(buf, "%d\n", |
318debd8 | 1070 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1071 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1072 | } |
b76cdba9 MW |
1073 | |
1074 | return count; | |
1075 | } | |
43cb76d9 | 1076 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1077 | |
1078 | ||
1079 | /* | |
1080 | * Show current 802.3ad partner key. | |
1081 | */ | |
43cb76d9 GKH |
1082 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1083 | struct device_attribute *attr, | |
1084 | char *buf) | |
b76cdba9 MW |
1085 | { |
1086 | int count = 0; | |
43cb76d9 | 1087 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1088 | |
1089 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1090 | struct ad_info ad_info; | |
3d632c3f | 1091 | count = sprintf(buf, "%d\n", |
318debd8 | 1092 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1093 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1094 | } |
b76cdba9 MW |
1095 | |
1096 | return count; | |
1097 | } | |
43cb76d9 | 1098 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1099 | |
1100 | ||
1101 | /* | |
1102 | * Show current 802.3ad partner mac. | |
1103 | */ | |
43cb76d9 GKH |
1104 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1105 | struct device_attribute *attr, | |
1106 | char *buf) | |
b76cdba9 MW |
1107 | { |
1108 | int count = 0; | |
43cb76d9 | 1109 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1110 | |
1111 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1112 | struct ad_info ad_info; | |
3d632c3f | 1113 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1114 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1115 | } |
b76cdba9 MW |
1116 | |
1117 | return count; | |
1118 | } | |
43cb76d9 | 1119 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1120 | |
bb1d9123 AG |
1121 | /* |
1122 | * Show the queue_ids of the slaves in the current bond. | |
1123 | */ | |
1124 | static ssize_t bonding_show_queue_id(struct device *d, | |
1125 | struct device_attribute *attr, | |
1126 | char *buf) | |
1127 | { | |
bb1d9123 | 1128 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1129 | struct list_head *iter; |
dec1e90e | 1130 | struct slave *slave; |
1131 | int res = 0; | |
bb1d9123 AG |
1132 | |
1133 | if (!rtnl_trylock()) | |
1134 | return restart_syscall(); | |
1135 | ||
9caff1e7 | 1136 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1137 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1138 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1139 | if ((PAGE_SIZE - res) > 10) |
1140 | res = PAGE_SIZE - 10; | |
1141 | res += sprintf(buf + res, "++more++ "); | |
1142 | break; | |
1143 | } | |
1144 | res += sprintf(buf + res, "%s:%d ", | |
1145 | slave->dev->name, slave->queue_id); | |
1146 | } | |
bb1d9123 AG |
1147 | if (res) |
1148 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1149 | |
bb1d9123 | 1150 | rtnl_unlock(); |
dec1e90e | 1151 | |
bb1d9123 AG |
1152 | return res; |
1153 | } | |
1154 | ||
1155 | /* | |
1156 | * Set the queue_ids of the slaves in the current bond. The bond | |
1157 | * interface must be enslaved for this to work. | |
1158 | */ | |
1159 | static ssize_t bonding_store_queue_id(struct device *d, | |
1160 | struct device_attribute *attr, | |
1161 | const char *buffer, size_t count) | |
1162 | { | |
1163 | struct slave *slave, *update_slave; | |
1164 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1165 | struct list_head *iter; |
bb1d9123 | 1166 | u16 qid; |
dec1e90e | 1167 | int ret = count; |
bb1d9123 AG |
1168 | char *delim; |
1169 | struct net_device *sdev = NULL; | |
1170 | ||
1171 | if (!rtnl_trylock()) | |
1172 | return restart_syscall(); | |
1173 | ||
1174 | /* delim will point to queue id if successful */ | |
1175 | delim = strchr(buffer, ':'); | |
1176 | if (!delim) | |
1177 | goto err_no_cmd; | |
1178 | ||
1179 | /* | |
1180 | * Terminate string that points to device name and bump it | |
1181 | * up one, so we can read the queue id there. | |
1182 | */ | |
1183 | *delim = '\0'; | |
1184 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1185 | goto err_no_cmd; | |
1186 | ||
1187 | /* Check buffer length, valid ifname and queue id */ | |
1188 | if (strlen(buffer) > IFNAMSIZ || | |
1189 | !dev_valid_name(buffer) || | |
8a540ff9 | 1190 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1191 | goto err_no_cmd; |
1192 | ||
1193 | /* Get the pointer to that interface if it exists */ | |
1194 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1195 | if (!sdev) | |
1196 | goto err_no_cmd; | |
1197 | ||
bb1d9123 AG |
1198 | /* Search for thes slave and check for duplicate qids */ |
1199 | update_slave = NULL; | |
9caff1e7 | 1200 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1201 | if (sdev == slave->dev) |
1202 | /* | |
1203 | * We don't need to check the matching | |
1204 | * slave for dups, since we're overwriting it | |
1205 | */ | |
1206 | update_slave = slave; | |
1207 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1208 | goto err_no_cmd; |
bb1d9123 AG |
1209 | } |
1210 | } | |
1211 | ||
1212 | if (!update_slave) | |
4d1ae5fb | 1213 | goto err_no_cmd; |
bb1d9123 AG |
1214 | |
1215 | /* Actually set the qids for the slave */ | |
1216 | update_slave->queue_id = qid; | |
1217 | ||
bb1d9123 AG |
1218 | out: |
1219 | rtnl_unlock(); | |
1220 | return ret; | |
1221 | ||
bb1d9123 AG |
1222 | err_no_cmd: |
1223 | pr_info("invalid input for queue_id set for %s.\n", | |
1224 | bond->dev->name); | |
1225 | ret = -EPERM; | |
1226 | goto out; | |
1227 | } | |
1228 | ||
1229 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1230 | bonding_store_queue_id); | |
1231 | ||
1232 | ||
ebd8e497 AG |
1233 | /* |
1234 | * Show and set the all_slaves_active flag. | |
1235 | */ | |
1236 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1237 | struct device_attribute *attr, | |
1238 | char *buf) | |
1239 | { | |
1240 | struct bonding *bond = to_bond(d); | |
1241 | ||
1242 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1243 | } | |
1244 | ||
1245 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1246 | struct device_attribute *attr, | |
1247 | const char *buf, size_t count) | |
1248 | { | |
ebd8e497 | 1249 | struct bonding *bond = to_bond(d); |
1cc0b1e3 | 1250 | int new_value, ret; |
4d1ae5fb | 1251 | |
ebd8e497 AG |
1252 | if (sscanf(buf, "%d", &new_value) != 1) { |
1253 | pr_err("%s: no all_slaves_active value specified.\n", | |
1254 | bond->dev->name); | |
1cc0b1e3 | 1255 | return -EINVAL; |
ebd8e497 AG |
1256 | } |
1257 | ||
1cc0b1e3 | 1258 | if (!rtnl_trylock()) |
1259 | return restart_syscall(); | |
ebd8e497 | 1260 | |
1cc0b1e3 | 1261 | ret = bond_option_all_slaves_active_set(bond, new_value); |
1262 | if (!ret) | |
1263 | ret = count; | |
b76cdba9 | 1264 | |
4d1ae5fb | 1265 | rtnl_unlock(); |
672bda33 | 1266 | return ret; |
ebd8e497 AG |
1267 | } |
1268 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1269 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1270 | |
c2952c31 FL |
1271 | /* |
1272 | * Show and set the number of IGMP membership reports to send on link failure | |
1273 | */ | |
1274 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1275 | struct device_attribute *attr, |
1276 | char *buf) | |
c2952c31 FL |
1277 | { |
1278 | struct bonding *bond = to_bond(d); | |
1279 | ||
1280 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1281 | } | |
1282 | ||
1283 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1284 | struct device_attribute *attr, |
1285 | const char *buf, size_t count) | |
c2952c31 FL |
1286 | { |
1287 | int new_value, ret = count; | |
1288 | struct bonding *bond = to_bond(d); | |
1289 | ||
1290 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1291 | pr_err("%s: no resend_igmp value specified.\n", | |
1292 | bond->dev->name); | |
d8838de7 | 1293 | return -EINVAL; |
c2952c31 FL |
1294 | } |
1295 | ||
d8838de7 | 1296 | if (!rtnl_trylock()) |
1297 | return restart_syscall(); | |
c2952c31 | 1298 | |
d8838de7 | 1299 | ret = bond_option_resend_igmp_set(bond, new_value); |
1300 | if (!ret) | |
1301 | ret = count; | |
1302 | ||
1303 | rtnl_unlock(); | |
c2952c31 FL |
1304 | return ret; |
1305 | } | |
1306 | ||
1307 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1308 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1309 | ||
7eacd038 NH |
1310 | |
1311 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1312 | struct device_attribute *attr, | |
1313 | char *buf) | |
1314 | { | |
1315 | struct bonding *bond = to_bond(d); | |
1316 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1317 | } | |
1318 | ||
1319 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1320 | struct device_attribute *attr, | |
1321 | const char *buf, size_t count) | |
1322 | { | |
1323 | struct bonding *bond = to_bond(d); | |
8d836d09 | 1324 | int new_value, ret; |
7eacd038 NH |
1325 | |
1326 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1327 | pr_err("%s: no lp interval value specified.\n", | |
1328 | bond->dev->name); | |
8d836d09 | 1329 | return -EINVAL; |
7eacd038 NH |
1330 | } |
1331 | ||
8d836d09 | 1332 | if (!rtnl_trylock()) |
1333 | return restart_syscall(); | |
7eacd038 | 1334 | |
8d836d09 | 1335 | ret = bond_option_lp_interval_set(bond, new_value); |
1336 | if (!ret) | |
1337 | ret = count; | |
1338 | ||
1339 | rtnl_unlock(); | |
7eacd038 NH |
1340 | return ret; |
1341 | } | |
1342 | ||
1343 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1344 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1345 | ||
73958329 NA |
1346 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1347 | struct device_attribute *attr, | |
1348 | char *buf) | |
1349 | { | |
1350 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 1351 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
a752a8b9 | 1352 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 NA |
1353 | } |
1354 | ||
1355 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1356 | struct device_attribute *attr, | |
1357 | const char *buf, size_t count) | |
1358 | { | |
1359 | struct bonding *bond = to_bond(d); | |
aa59d851 | 1360 | int ret; |
c13ab3ff | 1361 | |
aa59d851 NA |
1362 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PACKETS_PER_SLAVE, |
1363 | (char *)buf); | |
c13ab3ff | 1364 | if (!ret) |
1365 | ret = count; | |
1366 | ||
73958329 NA |
1367 | return ret; |
1368 | } | |
1369 | ||
1370 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1371 | bonding_show_packets_per_slave, | |
1372 | bonding_store_packets_per_slave); | |
1373 | ||
b76cdba9 | 1374 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1375 | &dev_attr_slaves.attr, |
1376 | &dev_attr_mode.attr, | |
dd957c57 | 1377 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1378 | &dev_attr_arp_validate.attr, |
8599b52e | 1379 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1380 | &dev_attr_arp_interval.attr, |
1381 | &dev_attr_arp_ip_target.attr, | |
1382 | &dev_attr_downdelay.attr, | |
1383 | &dev_attr_updelay.attr, | |
1384 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1385 | &dev_attr_ad_select.attr, |
43cb76d9 | 1386 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1387 | &dev_attr_num_grat_arp.attr, |
1388 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1389 | &dev_attr_miimon.attr, |
1390 | &dev_attr_primary.attr, | |
a549952a | 1391 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1392 | &dev_attr_use_carrier.attr, |
1393 | &dev_attr_active_slave.attr, | |
1394 | &dev_attr_mii_status.attr, | |
1395 | &dev_attr_ad_aggregator.attr, | |
1396 | &dev_attr_ad_num_ports.attr, | |
1397 | &dev_attr_ad_actor_key.attr, | |
1398 | &dev_attr_ad_partner_key.attr, | |
1399 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1400 | &dev_attr_queue_id.attr, |
ebd8e497 | 1401 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1402 | &dev_attr_resend_igmp.attr, |
655f8919 | 1403 | &dev_attr_min_links.attr, |
7eacd038 | 1404 | &dev_attr_lp_interval.attr, |
73958329 | 1405 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1406 | NULL, |
1407 | }; | |
1408 | ||
1409 | static struct attribute_group bonding_group = { | |
1410 | .name = "bonding", | |
1411 | .attrs = per_bond_attrs, | |
1412 | }; | |
1413 | ||
1414 | /* | |
1415 | * Initialize sysfs. This sets up the bonding_masters file in | |
1416 | * /sys/class/net. | |
1417 | */ | |
4c22400a | 1418 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1419 | { |
b8a9787e | 1420 | int ret; |
b76cdba9 | 1421 | |
4c22400a | 1422 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1423 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1424 | |
58292cbe TH |
1425 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1426 | bn->net); | |
877cbd36 JV |
1427 | /* |
1428 | * Permit multiple loads of the module by ignoring failures to | |
1429 | * create the bonding_masters sysfs file. Bonding devices | |
1430 | * created by second or subsequent loads of the module will | |
1431 | * not be listed in, or controllable by, bonding_masters, but | |
1432 | * will have the usual "bonding" sysfs directory. | |
1433 | * | |
1434 | * This is done to preserve backwards compatibility for | |
1435 | * initscripts/sysconfig, which load bonding multiple times to | |
1436 | * configure multiple bonding devices. | |
1437 | */ | |
1438 | if (ret == -EEXIST) { | |
38d2f38b | 1439 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1440 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1441 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1442 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1443 | class_attr_bonding_masters.attr.name); |
130aa61a | 1444 | ret = 0; |
877cbd36 | 1445 | } |
b76cdba9 MW |
1446 | |
1447 | return ret; | |
1448 | ||
1449 | } | |
1450 | ||
1451 | /* | |
1452 | * Remove /sys/class/net/bonding_masters. | |
1453 | */ | |
4c22400a | 1454 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1455 | { |
58292cbe | 1456 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1457 | } |
1458 | ||
1459 | /* | |
1460 | * Initialize sysfs for each bond. This sets up and registers | |
1461 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1462 | */ | |
6151b3d4 | 1463 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1464 | { |
6151b3d4 | 1465 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1466 | } |
1467 |