Commit | Line | Data |
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b76cdba9 MW |
1 | /* |
2 | * Copyright(c) 2004-2005 Intel Corporation. All rights reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify it | |
5 | * under the terms of the GNU General Public License as published by the | |
6 | * Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but | |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
11 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 | * for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along | |
adf8d3ff | 15 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
b76cdba9 MW |
16 | * |
17 | * The full GNU General Public License is included in this distribution in the | |
18 | * file called LICENSE. | |
19 | * | |
b76cdba9 | 20 | */ |
a4aee5c8 JP |
21 | |
22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
23 | ||
b76cdba9 MW |
24 | #include <linux/kernel.h> |
25 | #include <linux/module.h> | |
b76cdba9 | 26 | #include <linux/device.h> |
d43c36dc | 27 | #include <linux/sched.h> |
b76cdba9 MW |
28 | #include <linux/fs.h> |
29 | #include <linux/types.h> | |
30 | #include <linux/string.h> | |
31 | #include <linux/netdevice.h> | |
32 | #include <linux/inetdevice.h> | |
33 | #include <linux/in.h> | |
34 | #include <linux/sysfs.h> | |
b76cdba9 MW |
35 | #include <linux/ctype.h> |
36 | #include <linux/inet.h> | |
37 | #include <linux/rtnetlink.h> | |
5c5129b5 | 38 | #include <linux/etherdevice.h> |
881d966b | 39 | #include <net/net_namespace.h> |
ec87fd3b EB |
40 | #include <net/netns/generic.h> |
41 | #include <linux/nsproxy.h> | |
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); |
16228881 NA |
328 | struct bond_opt_value *val; |
329 | ||
330 | val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE, | |
331 | bond->params.arp_validate); | |
f5b2b966 | 332 | |
16228881 | 333 | return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate); |
f5b2b966 JV |
334 | } |
335 | ||
43cb76d9 GKH |
336 | static ssize_t bonding_store_arp_validate(struct device *d, |
337 | struct device_attribute *attr, | |
338 | const char *buf, size_t count) | |
f5b2b966 | 339 | { |
43cb76d9 | 340 | struct bonding *bond = to_bond(d); |
16228881 | 341 | int ret; |
29c49482 | 342 | |
16228881 | 343 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_VALIDATE, (char *)buf); |
29c49482 | 344 | if (!ret) |
345 | ret = count; | |
346 | ||
5c5038dc | 347 | return ret; |
f5b2b966 JV |
348 | } |
349 | ||
3d632c3f SH |
350 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
351 | bonding_store_arp_validate); | |
8599b52e VF |
352 | /* |
353 | * Show and set arp_all_targets. | |
354 | */ | |
355 | static ssize_t bonding_show_arp_all_targets(struct device *d, | |
356 | struct device_attribute *attr, | |
357 | char *buf) | |
358 | { | |
359 | struct bonding *bond = to_bond(d); | |
edf36b24 | 360 | struct bond_opt_value *val; |
8599b52e | 361 | |
edf36b24 NA |
362 | val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS, |
363 | bond->params.arp_all_targets); | |
364 | return sprintf(buf, "%s %d\n", | |
365 | val->string, bond->params.arp_all_targets); | |
8599b52e VF |
366 | } |
367 | ||
368 | static ssize_t bonding_store_arp_all_targets(struct device *d, | |
369 | struct device_attribute *attr, | |
370 | const char *buf, size_t count) | |
371 | { | |
372 | struct bonding *bond = to_bond(d); | |
edf36b24 | 373 | int ret; |
8599b52e | 374 | |
edf36b24 | 375 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_ALL_TARGETS, (char *)buf); |
d5c84254 | 376 | if (!ret) |
377 | ret = count; | |
378 | ||
d5c84254 | 379 | return ret; |
8599b52e VF |
380 | } |
381 | ||
382 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, | |
383 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); | |
f5b2b966 | 384 | |
dd957c57 JV |
385 | /* |
386 | * Show and store fail_over_mac. User only allowed to change the | |
387 | * value when there are no slaves. | |
388 | */ | |
3d632c3f SH |
389 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
390 | struct device_attribute *attr, | |
391 | char *buf) | |
dd957c57 JV |
392 | { |
393 | struct bonding *bond = to_bond(d); | |
1df6b6aa | 394 | struct bond_opt_value *val; |
dd957c57 | 395 | |
1df6b6aa NA |
396 | val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, |
397 | bond->params.fail_over_mac); | |
398 | ||
399 | return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac); | |
dd957c57 JV |
400 | } |
401 | ||
3d632c3f SH |
402 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
403 | struct device_attribute *attr, | |
404 | const char *buf, size_t count) | |
dd957c57 | 405 | { |
dd957c57 | 406 | struct bonding *bond = to_bond(d); |
1df6b6aa | 407 | int ret; |
dd957c57 | 408 | |
1df6b6aa | 409 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_FAIL_OVER_MAC, (char *)buf); |
89901972 | 410 | if (!ret) |
411 | ret = count; | |
3915c1e8 | 412 | |
9402b746 | 413 | return ret; |
dd957c57 JV |
414 | } |
415 | ||
3d632c3f SH |
416 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
417 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); | |
dd957c57 | 418 | |
b76cdba9 MW |
419 | /* |
420 | * Show and set the arp timer interval. There are two tricky bits | |
421 | * here. First, if ARP monitoring is activated, then we must disable | |
422 | * MII monitoring. Second, if the ARP timer isn't running, we must | |
423 | * start it. | |
424 | */ | |
43cb76d9 GKH |
425 | static ssize_t bonding_show_arp_interval(struct device *d, |
426 | struct device_attribute *attr, | |
427 | char *buf) | |
b76cdba9 | 428 | { |
43cb76d9 | 429 | struct bonding *bond = to_bond(d); |
b76cdba9 | 430 | |
7bd46508 | 431 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 MW |
432 | } |
433 | ||
43cb76d9 GKH |
434 | static ssize_t bonding_store_arp_interval(struct device *d, |
435 | struct device_attribute *attr, | |
436 | const char *buf, size_t count) | |
b76cdba9 | 437 | { |
43cb76d9 | 438 | struct bonding *bond = to_bond(d); |
06151dbc | 439 | int new_value, ret; |
b76cdba9 MW |
440 | |
441 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 442 | pr_err("%s: no arp_interval value specified.\n", |
06151dbc | 443 | bond->dev->name); |
444 | return -EINVAL; | |
b76cdba9 | 445 | } |
06151dbc | 446 | |
447 | if (!rtnl_trylock()) | |
448 | return restart_syscall(); | |
449 | ||
450 | ret = bond_option_arp_interval_set(bond, new_value); | |
451 | if (!ret) | |
452 | ret = count; | |
453 | ||
fbb0c41b | 454 | rtnl_unlock(); |
b76cdba9 MW |
455 | return ret; |
456 | } | |
3d632c3f SH |
457 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
458 | bonding_show_arp_interval, bonding_store_arp_interval); | |
b76cdba9 MW |
459 | |
460 | /* | |
461 | * Show and set the arp targets. | |
462 | */ | |
43cb76d9 GKH |
463 | static ssize_t bonding_show_arp_targets(struct device *d, |
464 | struct device_attribute *attr, | |
465 | char *buf) | |
b76cdba9 MW |
466 | { |
467 | int i, res = 0; | |
43cb76d9 | 468 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
469 | |
470 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
471 | if (bond->params.arp_targets[i]) | |
63779436 HH |
472 | res += sprintf(buf + res, "%pI4 ", |
473 | &bond->params.arp_targets[i]); | |
b76cdba9 | 474 | } |
1dcdcd69 WF |
475 | if (res) |
476 | buf[res-1] = '\n'; /* eat the leftover space */ | |
b76cdba9 MW |
477 | return res; |
478 | } | |
479 | ||
43cb76d9 GKH |
480 | static ssize_t bonding_store_arp_targets(struct device *d, |
481 | struct device_attribute *attr, | |
482 | const char *buf, size_t count) | |
b76cdba9 | 483 | { |
43cb76d9 | 484 | struct bonding *bond = to_bond(d); |
7f28fa10 | 485 | __be32 target; |
486 | int ret = -EPERM; | |
4d1ae5fb | 487 | |
7f28fa10 | 488 | if (!in4_pton(buf + 1, -1, (u8 *)&target, -1, NULL)) { |
489 | pr_err("%s: invalid ARP target %pI4 specified\n", | |
490 | bond->dev->name, &target); | |
491 | return -EPERM; | |
f9de11a1 | 492 | } |
8599b52e | 493 | |
7f28fa10 | 494 | if (!rtnl_trylock()) |
495 | return restart_syscall(); | |
8599b52e | 496 | |
7f28fa10 | 497 | if (buf[0] == '+') |
498 | ret = bond_option_arp_ip_target_add(bond, target); | |
499 | else if (buf[0] == '-') | |
500 | ret = bond_option_arp_ip_target_rem(bond, target); | |
501 | else | |
a4aee5c8 JP |
502 | pr_err("no command found in arp_ip_targets file for bond %s. Use +<addr> or -<addr>.\n", |
503 | bond->dev->name); | |
b76cdba9 | 504 | |
7f28fa10 | 505 | if (!ret) |
506 | ret = count; | |
507 | ||
4d1ae5fb | 508 | rtnl_unlock(); |
b76cdba9 MW |
509 | return ret; |
510 | } | |
43cb76d9 | 511 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
b76cdba9 MW |
512 | |
513 | /* | |
514 | * Show and set the up and down delays. These must be multiples of the | |
515 | * MII monitoring value, and are stored internally as the multiplier. | |
516 | * Thus, we must translate to MS for the real world. | |
517 | */ | |
43cb76d9 GKH |
518 | static ssize_t bonding_show_downdelay(struct device *d, |
519 | struct device_attribute *attr, | |
520 | char *buf) | |
b76cdba9 | 521 | { |
43cb76d9 | 522 | struct bonding *bond = to_bond(d); |
b76cdba9 | 523 | |
7bd46508 | 524 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 MW |
525 | } |
526 | ||
43cb76d9 GKH |
527 | static ssize_t bonding_store_downdelay(struct device *d, |
528 | struct device_attribute *attr, | |
529 | const char *buf, size_t count) | |
b76cdba9 | 530 | { |
c7461f9b | 531 | int new_value, ret; |
43cb76d9 | 532 | struct bonding *bond = to_bond(d); |
b76cdba9 | 533 | |
b76cdba9 | 534 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 535 | pr_err("%s: no down delay value specified.\n", bond->dev->name); |
c7461f9b | 536 | return -EINVAL; |
b76cdba9 | 537 | } |
b76cdba9 | 538 | |
c7461f9b | 539 | if (!rtnl_trylock()) |
540 | return restart_syscall(); | |
541 | ||
542 | ret = bond_option_downdelay_set(bond, new_value); | |
543 | if (!ret) | |
544 | ret = count; | |
b76cdba9 | 545 | |
b869ccfa | 546 | rtnl_unlock(); |
b76cdba9 MW |
547 | return ret; |
548 | } | |
3d632c3f SH |
549 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
550 | bonding_show_downdelay, bonding_store_downdelay); | |
b76cdba9 | 551 | |
43cb76d9 GKH |
552 | static ssize_t bonding_show_updelay(struct device *d, |
553 | struct device_attribute *attr, | |
554 | char *buf) | |
b76cdba9 | 555 | { |
43cb76d9 | 556 | struct bonding *bond = to_bond(d); |
b76cdba9 | 557 | |
7bd46508 | 558 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
559 | |
560 | } | |
561 | ||
43cb76d9 GKH |
562 | static ssize_t bonding_store_updelay(struct device *d, |
563 | struct device_attribute *attr, | |
564 | const char *buf, size_t count) | |
b76cdba9 | 565 | { |
25852e29 | 566 | int new_value, ret; |
43cb76d9 | 567 | struct bonding *bond = to_bond(d); |
b76cdba9 | 568 | |
b76cdba9 | 569 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 570 | pr_err("%s: no up delay value specified.\n", |
25852e29 | 571 | bond->dev->name); |
572 | return -EINVAL; | |
b76cdba9 MW |
573 | } |
574 | ||
25852e29 | 575 | if (!rtnl_trylock()) |
576 | return restart_syscall(); | |
577 | ||
578 | ret = bond_option_updelay_set(bond, new_value); | |
579 | if (!ret) | |
580 | ret = count; | |
581 | ||
b869ccfa | 582 | rtnl_unlock(); |
b76cdba9 MW |
583 | return ret; |
584 | } | |
3d632c3f SH |
585 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
586 | bonding_show_updelay, bonding_store_updelay); | |
b76cdba9 MW |
587 | |
588 | /* | |
589 | * Show and set the LACP interval. Interface must be down, and the mode | |
590 | * must be set to 802.3ad mode. | |
591 | */ | |
43cb76d9 GKH |
592 | static ssize_t bonding_show_lacp(struct device *d, |
593 | struct device_attribute *attr, | |
594 | char *buf) | |
b76cdba9 | 595 | { |
43cb76d9 | 596 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
597 | |
598 | return sprintf(buf, "%s %d\n", | |
599 | bond_lacp_tbl[bond->params.lacp_fast].modename, | |
7bd46508 | 600 | bond->params.lacp_fast); |
b76cdba9 MW |
601 | } |
602 | ||
43cb76d9 GKH |
603 | static ssize_t bonding_store_lacp(struct device *d, |
604 | struct device_attribute *attr, | |
605 | const char *buf, size_t count) | |
b76cdba9 | 606 | { |
43cb76d9 | 607 | struct bonding *bond = to_bond(d); |
998e40bb | 608 | int new_value, ret; |
b76cdba9 | 609 | |
ece95f7f | 610 | new_value = bond_parse_parm(buf, bond_lacp_tbl); |
998e40bb | 611 | if (new_value < 0) { |
a4aee5c8 | 612 | pr_err("%s: Ignoring invalid LACP rate value %.*s.\n", |
3d632c3f | 613 | bond->dev->name, (int)strlen(buf) - 1, buf); |
998e40bb | 614 | return -EINVAL; |
b76cdba9 | 615 | } |
c509316b | 616 | |
998e40bb | 617 | if (!rtnl_trylock()) |
618 | return restart_syscall(); | |
619 | ||
620 | ret = bond_option_lacp_rate_set(bond, new_value); | |
621 | if (!ret) | |
622 | ret = count; | |
623 | ||
624 | rtnl_unlock(); | |
b76cdba9 MW |
625 | return ret; |
626 | } | |
3d632c3f SH |
627 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
628 | bonding_show_lacp, bonding_store_lacp); | |
b76cdba9 | 629 | |
655f8919 | 630 | static ssize_t bonding_show_min_links(struct device *d, |
631 | struct device_attribute *attr, | |
632 | char *buf) | |
633 | { | |
634 | struct bonding *bond = to_bond(d); | |
635 | ||
636 | return sprintf(buf, "%d\n", bond->params.min_links); | |
637 | } | |
638 | ||
639 | static ssize_t bonding_store_min_links(struct device *d, | |
640 | struct device_attribute *attr, | |
641 | const char *buf, size_t count) | |
642 | { | |
643 | struct bonding *bond = to_bond(d); | |
644 | int ret; | |
645 | unsigned int new_value; | |
646 | ||
647 | ret = kstrtouint(buf, 0, &new_value); | |
648 | if (ret < 0) { | |
649 | pr_err("%s: Ignoring invalid min links value %s.\n", | |
650 | bond->dev->name, buf); | |
651 | return ret; | |
652 | } | |
653 | ||
7d101008 | 654 | if (!rtnl_trylock()) |
655 | return restart_syscall(); | |
656 | ||
657 | ret = bond_option_min_links_set(bond, new_value); | |
658 | if (!ret) | |
659 | ret = count; | |
660 | ||
661 | rtnl_unlock(); | |
662 | return ret; | |
655f8919 | 663 | } |
664 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, | |
665 | bonding_show_min_links, bonding_store_min_links); | |
666 | ||
fd989c83 JV |
667 | static ssize_t bonding_show_ad_select(struct device *d, |
668 | struct device_attribute *attr, | |
669 | char *buf) | |
670 | { | |
671 | struct bonding *bond = to_bond(d); | |
672 | ||
673 | return sprintf(buf, "%s %d\n", | |
674 | ad_select_tbl[bond->params.ad_select].modename, | |
675 | bond->params.ad_select); | |
676 | } | |
677 | ||
678 | ||
679 | static ssize_t bonding_store_ad_select(struct device *d, | |
680 | struct device_attribute *attr, | |
681 | const char *buf, size_t count) | |
682 | { | |
ec029fac | 683 | int new_value, ret; |
fd989c83 JV |
684 | struct bonding *bond = to_bond(d); |
685 | ||
fd989c83 | 686 | new_value = bond_parse_parm(buf, ad_select_tbl); |
ec029fac | 687 | if (new_value < 0) { |
a4aee5c8 | 688 | pr_err("%s: Ignoring invalid ad_select value %.*s.\n", |
fd989c83 | 689 | bond->dev->name, (int)strlen(buf) - 1, buf); |
ec029fac | 690 | return -EINVAL; |
fd989c83 | 691 | } |
ec029fac | 692 | |
693 | if (!rtnl_trylock()) | |
694 | return restart_syscall(); | |
695 | ||
696 | ret = bond_option_ad_select_set(bond, new_value); | |
697 | if (!ret) | |
698 | ret = count; | |
699 | ||
700 | rtnl_unlock(); | |
fd989c83 JV |
701 | return ret; |
702 | } | |
3d632c3f SH |
703 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
704 | bonding_show_ad_select, bonding_store_ad_select); | |
fd989c83 | 705 | |
ad246c99 BH |
706 | /* |
707 | * Show and set the number of peer notifications to send after a failover event. | |
708 | */ | |
709 | static ssize_t bonding_show_num_peer_notif(struct device *d, | |
710 | struct device_attribute *attr, | |
711 | char *buf) | |
712 | { | |
713 | struct bonding *bond = to_bond(d); | |
714 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
715 | } | |
716 | ||
717 | static ssize_t bonding_store_num_peer_notif(struct device *d, | |
718 | struct device_attribute *attr, | |
719 | const char *buf, size_t count) | |
720 | { | |
721 | struct bonding *bond = to_bond(d); | |
2c9839c1 | 722 | u8 new_value; |
723 | int ret; | |
724 | ||
725 | ret = kstrtou8(buf, 10, &new_value); | |
0b23810d | 726 | if (ret) { |
2c9839c1 | 727 | pr_err("%s: invalid value %s specified.\n", |
728 | bond->dev->name, buf); | |
729 | return ret; | |
730 | } | |
731 | ||
732 | if (!rtnl_trylock()) | |
733 | return restart_syscall(); | |
734 | ||
735 | ret = bond_option_num_peer_notif_set(bond, new_value); | |
736 | if (!ret) | |
737 | ret = count; | |
738 | ||
739 | rtnl_unlock(); | |
740 | return ret; | |
ad246c99 BH |
741 | } |
742 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, | |
743 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
744 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, | |
745 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); | |
746 | ||
b76cdba9 MW |
747 | /* |
748 | * Show and set the MII monitor interval. There are two tricky bits | |
749 | * here. First, if MII monitoring is activated, then we must disable | |
750 | * ARP monitoring. Second, if the timer isn't running, we must | |
751 | * start it. | |
752 | */ | |
43cb76d9 GKH |
753 | static ssize_t bonding_show_miimon(struct device *d, |
754 | struct device_attribute *attr, | |
755 | char *buf) | |
b76cdba9 | 756 | { |
43cb76d9 | 757 | struct bonding *bond = to_bond(d); |
b76cdba9 | 758 | |
7bd46508 | 759 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 MW |
760 | } |
761 | ||
43cb76d9 GKH |
762 | static ssize_t bonding_store_miimon(struct device *d, |
763 | struct device_attribute *attr, | |
764 | const char *buf, size_t count) | |
b76cdba9 | 765 | { |
eecdaa6e | 766 | int new_value, ret; |
43cb76d9 | 767 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
768 | |
769 | if (sscanf(buf, "%d", &new_value) != 1) { | |
a4aee5c8 | 770 | pr_err("%s: no miimon value specified.\n", |
b76cdba9 | 771 | bond->dev->name); |
eecdaa6e | 772 | return -EINVAL; |
b76cdba9 | 773 | } |
eecdaa6e | 774 | |
775 | if (!rtnl_trylock()) | |
776 | return restart_syscall(); | |
777 | ||
778 | ret = bond_option_miimon_set(bond, new_value); | |
779 | if (!ret) | |
780 | ret = count; | |
781 | ||
fbb0c41b | 782 | rtnl_unlock(); |
b76cdba9 MW |
783 | return ret; |
784 | } | |
3d632c3f SH |
785 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
786 | bonding_show_miimon, bonding_store_miimon); | |
b76cdba9 MW |
787 | |
788 | /* | |
789 | * Show and set the primary slave. The store function is much | |
790 | * simpler than bonding_store_slaves function because it only needs to | |
791 | * handle one interface name. | |
792 | * The bond must be a mode that supports a primary for this be | |
793 | * set. | |
794 | */ | |
43cb76d9 GKH |
795 | static ssize_t bonding_show_primary(struct device *d, |
796 | struct device_attribute *attr, | |
797 | char *buf) | |
b76cdba9 MW |
798 | { |
799 | int count = 0; | |
43cb76d9 | 800 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
801 | |
802 | if (bond->primary_slave) | |
7bd46508 | 803 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
b76cdba9 MW |
804 | |
805 | return count; | |
806 | } | |
807 | ||
43cb76d9 GKH |
808 | static ssize_t bonding_store_primary(struct device *d, |
809 | struct device_attribute *attr, | |
810 | const char *buf, size_t count) | |
b76cdba9 | 811 | { |
43cb76d9 | 812 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 813 | char ifname[IFNAMSIZ]; |
0a98a0d1 | 814 | int ret; |
b76cdba9 | 815 | |
eb6e98a1 | 816 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
0a98a0d1 | 817 | if (ifname[0] == '\n') |
818 | ifname[0] = '\0'; | |
b76cdba9 | 819 | |
0a98a0d1 | 820 | if (!rtnl_trylock()) |
821 | return restart_syscall(); | |
f4bb2e9c | 822 | |
0a98a0d1 | 823 | ret = bond_option_primary_set(bond, ifname); |
824 | if (!ret) | |
825 | ret = count; | |
8a93664d | 826 | |
6603a6f2 | 827 | rtnl_unlock(); |
0a98a0d1 | 828 | return ret; |
b76cdba9 | 829 | } |
3d632c3f SH |
830 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
831 | bonding_show_primary, bonding_store_primary); | |
b76cdba9 | 832 | |
a549952a JP |
833 | /* |
834 | * Show and set the primary_reselect flag. | |
835 | */ | |
836 | static ssize_t bonding_show_primary_reselect(struct device *d, | |
837 | struct device_attribute *attr, | |
838 | char *buf) | |
839 | { | |
840 | struct bonding *bond = to_bond(d); | |
841 | ||
842 | return sprintf(buf, "%s %d\n", | |
843 | pri_reselect_tbl[bond->params.primary_reselect].modename, | |
844 | bond->params.primary_reselect); | |
845 | } | |
846 | ||
847 | static ssize_t bonding_store_primary_reselect(struct device *d, | |
848 | struct device_attribute *attr, | |
849 | const char *buf, size_t count) | |
850 | { | |
8a41ae44 | 851 | int new_value, ret; |
a549952a JP |
852 | struct bonding *bond = to_bond(d); |
853 | ||
a549952a JP |
854 | new_value = bond_parse_parm(buf, pri_reselect_tbl); |
855 | if (new_value < 0) { | |
a4aee5c8 | 856 | pr_err("%s: Ignoring invalid primary_reselect value %.*s.\n", |
a549952a JP |
857 | bond->dev->name, |
858 | (int) strlen(buf) - 1, buf); | |
8a41ae44 | 859 | return -EINVAL; |
a549952a JP |
860 | } |
861 | ||
8a41ae44 | 862 | if (!rtnl_trylock()) |
863 | return restart_syscall(); | |
864 | ||
865 | ret = bond_option_primary_reselect_set(bond, new_value); | |
866 | if (!ret) | |
867 | ret = count; | |
a549952a | 868 | |
a549952a JP |
869 | rtnl_unlock(); |
870 | return ret; | |
871 | } | |
872 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, | |
873 | bonding_show_primary_reselect, | |
874 | bonding_store_primary_reselect); | |
875 | ||
b76cdba9 MW |
876 | /* |
877 | * Show and set the use_carrier flag. | |
878 | */ | |
43cb76d9 GKH |
879 | static ssize_t bonding_show_carrier(struct device *d, |
880 | struct device_attribute *attr, | |
881 | char *buf) | |
b76cdba9 | 882 | { |
43cb76d9 | 883 | struct bonding *bond = to_bond(d); |
b76cdba9 | 884 | |
7bd46508 | 885 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 MW |
886 | } |
887 | ||
43cb76d9 GKH |
888 | static ssize_t bonding_store_carrier(struct device *d, |
889 | struct device_attribute *attr, | |
890 | const char *buf, size_t count) | |
b76cdba9 | 891 | { |
9f53e14e | 892 | int new_value, ret; |
43cb76d9 | 893 | struct bonding *bond = to_bond(d); |
b76cdba9 | 894 | |
b76cdba9 | 895 | if (sscanf(buf, "%d", &new_value) != 1) { |
a4aee5c8 | 896 | pr_err("%s: no use_carrier value specified.\n", |
b76cdba9 | 897 | bond->dev->name); |
9f53e14e | 898 | return -EINVAL; |
b76cdba9 | 899 | } |
9f53e14e | 900 | |
901 | if (!rtnl_trylock()) | |
902 | return restart_syscall(); | |
903 | ||
904 | ret = bond_option_use_carrier_set(bond, new_value); | |
905 | if (!ret) | |
906 | ret = count; | |
907 | ||
908 | rtnl_unlock(); | |
672bda33 | 909 | return ret; |
b76cdba9 | 910 | } |
3d632c3f SH |
911 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
912 | bonding_show_carrier, bonding_store_carrier); | |
b76cdba9 MW |
913 | |
914 | ||
915 | /* | |
916 | * Show and set currently active_slave. | |
917 | */ | |
43cb76d9 GKH |
918 | static ssize_t bonding_show_active_slave(struct device *d, |
919 | struct device_attribute *attr, | |
920 | char *buf) | |
b76cdba9 | 921 | { |
43cb76d9 | 922 | struct bonding *bond = to_bond(d); |
752d48b5 | 923 | struct net_device *slave_dev; |
16cd0160 | 924 | int count = 0; |
b76cdba9 | 925 | |
278b2083 | 926 | rcu_read_lock(); |
752d48b5 JP |
927 | slave_dev = bond_option_active_slave_get_rcu(bond); |
928 | if (slave_dev) | |
929 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 930 | rcu_read_unlock(); |
931 | ||
b76cdba9 MW |
932 | return count; |
933 | } | |
934 | ||
43cb76d9 GKH |
935 | static ssize_t bonding_store_active_slave(struct device *d, |
936 | struct device_attribute *attr, | |
937 | const char *buf, size_t count) | |
b76cdba9 | 938 | { |
d9e32b21 | 939 | int ret; |
43cb76d9 | 940 | struct bonding *bond = to_bond(d); |
f4bb2e9c | 941 | char ifname[IFNAMSIZ]; |
d9e32b21 | 942 | struct net_device *dev; |
b76cdba9 | 943 | |
496a60cd EB |
944 | if (!rtnl_trylock()) |
945 | return restart_syscall(); | |
e843fa50 | 946 | |
c84e1590 | 947 | sscanf(buf, "%15s", ifname); /* IFNAMSIZ */ |
f4bb2e9c | 948 | if (!strlen(ifname) || buf[0] == '\n') { |
d9e32b21 JP |
949 | dev = NULL; |
950 | } else { | |
951 | dev = __dev_get_by_name(dev_net(bond->dev), ifname); | |
952 | if (!dev) { | |
953 | ret = -ENODEV; | |
954 | goto out; | |
b76cdba9 | 955 | } |
b76cdba9 | 956 | } |
f4bb2e9c | 957 | |
d9e32b21 JP |
958 | ret = bond_option_active_slave_set(bond, dev); |
959 | if (!ret) | |
960 | ret = count; | |
e843fa50 | 961 | |
d9e32b21 | 962 | out: |
6603a6f2 JV |
963 | rtnl_unlock(); |
964 | ||
d9e32b21 | 965 | return ret; |
b76cdba9 MW |
966 | |
967 | } | |
3d632c3f SH |
968 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
969 | bonding_show_active_slave, bonding_store_active_slave); | |
b76cdba9 MW |
970 | |
971 | ||
972 | /* | |
973 | * Show link status of the bond interface. | |
974 | */ | |
43cb76d9 GKH |
975 | static ssize_t bonding_show_mii_status(struct device *d, |
976 | struct device_attribute *attr, | |
977 | char *buf) | |
b76cdba9 | 978 | { |
43cb76d9 | 979 | struct bonding *bond = to_bond(d); |
b76cdba9 | 980 | |
278b2083 | 981 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
b76cdba9 | 982 | } |
43cb76d9 | 983 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 984 | |
b76cdba9 MW |
985 | /* |
986 | * Show current 802.3ad aggregator ID. | |
987 | */ | |
43cb76d9 GKH |
988 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
989 | struct device_attribute *attr, | |
990 | char *buf) | |
b76cdba9 MW |
991 | { |
992 | int count = 0; | |
43cb76d9 | 993 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
994 | |
995 | if (bond->params.mode == BOND_MODE_8023AD) { | |
996 | struct ad_info ad_info; | |
3d632c3f | 997 | count = sprintf(buf, "%d\n", |
318debd8 | 998 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 999 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 1000 | } |
b76cdba9 MW |
1001 | |
1002 | return count; | |
1003 | } | |
43cb76d9 | 1004 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
1005 | |
1006 | ||
1007 | /* | |
1008 | * Show number of active 802.3ad ports. | |
1009 | */ | |
43cb76d9 GKH |
1010 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
1011 | struct device_attribute *attr, | |
1012 | char *buf) | |
b76cdba9 MW |
1013 | { |
1014 | int count = 0; | |
43cb76d9 | 1015 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1016 | |
1017 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1018 | struct ad_info ad_info; | |
3d632c3f | 1019 | count = sprintf(buf, "%d\n", |
318debd8 | 1020 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1021 | ? 0 : ad_info.ports); |
b76cdba9 | 1022 | } |
b76cdba9 MW |
1023 | |
1024 | return count; | |
1025 | } | |
43cb76d9 | 1026 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
1027 | |
1028 | ||
1029 | /* | |
1030 | * Show current 802.3ad actor key. | |
1031 | */ | |
43cb76d9 GKH |
1032 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
1033 | struct device_attribute *attr, | |
1034 | char *buf) | |
b76cdba9 MW |
1035 | { |
1036 | int count = 0; | |
43cb76d9 | 1037 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1038 | |
1039 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1040 | struct ad_info ad_info; | |
3d632c3f | 1041 | count = sprintf(buf, "%d\n", |
318debd8 | 1042 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1043 | ? 0 : ad_info.actor_key); |
b76cdba9 | 1044 | } |
b76cdba9 MW |
1045 | |
1046 | return count; | |
1047 | } | |
43cb76d9 | 1048 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
1049 | |
1050 | ||
1051 | /* | |
1052 | * Show current 802.3ad partner key. | |
1053 | */ | |
43cb76d9 GKH |
1054 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
1055 | struct device_attribute *attr, | |
1056 | char *buf) | |
b76cdba9 MW |
1057 | { |
1058 | int count = 0; | |
43cb76d9 | 1059 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1060 | |
1061 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1062 | struct ad_info ad_info; | |
3d632c3f | 1063 | count = sprintf(buf, "%d\n", |
318debd8 | 1064 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 1065 | ? 0 : ad_info.partner_key); |
b76cdba9 | 1066 | } |
b76cdba9 MW |
1067 | |
1068 | return count; | |
1069 | } | |
43cb76d9 | 1070 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
1071 | |
1072 | ||
1073 | /* | |
1074 | * Show current 802.3ad partner mac. | |
1075 | */ | |
43cb76d9 GKH |
1076 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
1077 | struct device_attribute *attr, | |
1078 | char *buf) | |
b76cdba9 MW |
1079 | { |
1080 | int count = 0; | |
43cb76d9 | 1081 | struct bonding *bond = to_bond(d); |
b76cdba9 MW |
1082 | |
1083 | if (bond->params.mode == BOND_MODE_8023AD) { | |
1084 | struct ad_info ad_info; | |
3d632c3f | 1085 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 1086 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 1087 | } |
b76cdba9 MW |
1088 | |
1089 | return count; | |
1090 | } | |
43cb76d9 | 1091 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 1092 | |
bb1d9123 AG |
1093 | /* |
1094 | * Show the queue_ids of the slaves in the current bond. | |
1095 | */ | |
1096 | static ssize_t bonding_show_queue_id(struct device *d, | |
1097 | struct device_attribute *attr, | |
1098 | char *buf) | |
1099 | { | |
bb1d9123 | 1100 | struct bonding *bond = to_bond(d); |
9caff1e7 | 1101 | struct list_head *iter; |
dec1e90e | 1102 | struct slave *slave; |
1103 | int res = 0; | |
bb1d9123 AG |
1104 | |
1105 | if (!rtnl_trylock()) | |
1106 | return restart_syscall(); | |
1107 | ||
9caff1e7 | 1108 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
1109 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
1110 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
1111 | if ((PAGE_SIZE - res) > 10) |
1112 | res = PAGE_SIZE - 10; | |
1113 | res += sprintf(buf + res, "++more++ "); | |
1114 | break; | |
1115 | } | |
1116 | res += sprintf(buf + res, "%s:%d ", | |
1117 | slave->dev->name, slave->queue_id); | |
1118 | } | |
bb1d9123 AG |
1119 | if (res) |
1120 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 1121 | |
bb1d9123 | 1122 | rtnl_unlock(); |
dec1e90e | 1123 | |
bb1d9123 AG |
1124 | return res; |
1125 | } | |
1126 | ||
1127 | /* | |
1128 | * Set the queue_ids of the slaves in the current bond. The bond | |
1129 | * interface must be enslaved for this to work. | |
1130 | */ | |
1131 | static ssize_t bonding_store_queue_id(struct device *d, | |
1132 | struct device_attribute *attr, | |
1133 | const char *buffer, size_t count) | |
1134 | { | |
1135 | struct slave *slave, *update_slave; | |
1136 | struct bonding *bond = to_bond(d); | |
9caff1e7 | 1137 | struct list_head *iter; |
bb1d9123 | 1138 | u16 qid; |
dec1e90e | 1139 | int ret = count; |
bb1d9123 AG |
1140 | char *delim; |
1141 | struct net_device *sdev = NULL; | |
1142 | ||
1143 | if (!rtnl_trylock()) | |
1144 | return restart_syscall(); | |
1145 | ||
1146 | /* delim will point to queue id if successful */ | |
1147 | delim = strchr(buffer, ':'); | |
1148 | if (!delim) | |
1149 | goto err_no_cmd; | |
1150 | ||
1151 | /* | |
1152 | * Terminate string that points to device name and bump it | |
1153 | * up one, so we can read the queue id there. | |
1154 | */ | |
1155 | *delim = '\0'; | |
1156 | if (sscanf(++delim, "%hd\n", &qid) != 1) | |
1157 | goto err_no_cmd; | |
1158 | ||
1159 | /* Check buffer length, valid ifname and queue id */ | |
1160 | if (strlen(buffer) > IFNAMSIZ || | |
1161 | !dev_valid_name(buffer) || | |
8a540ff9 | 1162 | qid > bond->dev->real_num_tx_queues) |
bb1d9123 AG |
1163 | goto err_no_cmd; |
1164 | ||
1165 | /* Get the pointer to that interface if it exists */ | |
1166 | sdev = __dev_get_by_name(dev_net(bond->dev), buffer); | |
1167 | if (!sdev) | |
1168 | goto err_no_cmd; | |
1169 | ||
bb1d9123 AG |
1170 | /* Search for thes slave and check for duplicate qids */ |
1171 | update_slave = NULL; | |
9caff1e7 | 1172 | bond_for_each_slave(bond, slave, iter) { |
bb1d9123 AG |
1173 | if (sdev == slave->dev) |
1174 | /* | |
1175 | * We don't need to check the matching | |
1176 | * slave for dups, since we're overwriting it | |
1177 | */ | |
1178 | update_slave = slave; | |
1179 | else if (qid && qid == slave->queue_id) { | |
4d1ae5fb | 1180 | goto err_no_cmd; |
bb1d9123 AG |
1181 | } |
1182 | } | |
1183 | ||
1184 | if (!update_slave) | |
4d1ae5fb | 1185 | goto err_no_cmd; |
bb1d9123 AG |
1186 | |
1187 | /* Actually set the qids for the slave */ | |
1188 | update_slave->queue_id = qid; | |
1189 | ||
bb1d9123 AG |
1190 | out: |
1191 | rtnl_unlock(); | |
1192 | return ret; | |
1193 | ||
bb1d9123 AG |
1194 | err_no_cmd: |
1195 | pr_info("invalid input for queue_id set for %s.\n", | |
1196 | bond->dev->name); | |
1197 | ret = -EPERM; | |
1198 | goto out; | |
1199 | } | |
1200 | ||
1201 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, | |
1202 | bonding_store_queue_id); | |
1203 | ||
1204 | ||
ebd8e497 AG |
1205 | /* |
1206 | * Show and set the all_slaves_active flag. | |
1207 | */ | |
1208 | static ssize_t bonding_show_slaves_active(struct device *d, | |
1209 | struct device_attribute *attr, | |
1210 | char *buf) | |
1211 | { | |
1212 | struct bonding *bond = to_bond(d); | |
1213 | ||
1214 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
1215 | } | |
1216 | ||
1217 | static ssize_t bonding_store_slaves_active(struct device *d, | |
1218 | struct device_attribute *attr, | |
1219 | const char *buf, size_t count) | |
1220 | { | |
ebd8e497 | 1221 | struct bonding *bond = to_bond(d); |
1cc0b1e3 | 1222 | int new_value, ret; |
4d1ae5fb | 1223 | |
ebd8e497 AG |
1224 | if (sscanf(buf, "%d", &new_value) != 1) { |
1225 | pr_err("%s: no all_slaves_active value specified.\n", | |
1226 | bond->dev->name); | |
1cc0b1e3 | 1227 | return -EINVAL; |
ebd8e497 AG |
1228 | } |
1229 | ||
1cc0b1e3 | 1230 | if (!rtnl_trylock()) |
1231 | return restart_syscall(); | |
ebd8e497 | 1232 | |
1cc0b1e3 | 1233 | ret = bond_option_all_slaves_active_set(bond, new_value); |
1234 | if (!ret) | |
1235 | ret = count; | |
b76cdba9 | 1236 | |
4d1ae5fb | 1237 | rtnl_unlock(); |
672bda33 | 1238 | return ret; |
ebd8e497 AG |
1239 | } |
1240 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, | |
1241 | bonding_show_slaves_active, bonding_store_slaves_active); | |
b76cdba9 | 1242 | |
c2952c31 FL |
1243 | /* |
1244 | * Show and set the number of IGMP membership reports to send on link failure | |
1245 | */ | |
1246 | static ssize_t bonding_show_resend_igmp(struct device *d, | |
94265cf5 FL |
1247 | struct device_attribute *attr, |
1248 | char *buf) | |
c2952c31 FL |
1249 | { |
1250 | struct bonding *bond = to_bond(d); | |
1251 | ||
1252 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
1253 | } | |
1254 | ||
1255 | static ssize_t bonding_store_resend_igmp(struct device *d, | |
94265cf5 FL |
1256 | struct device_attribute *attr, |
1257 | const char *buf, size_t count) | |
c2952c31 FL |
1258 | { |
1259 | int new_value, ret = count; | |
1260 | struct bonding *bond = to_bond(d); | |
1261 | ||
1262 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1263 | pr_err("%s: no resend_igmp value specified.\n", | |
1264 | bond->dev->name); | |
d8838de7 | 1265 | return -EINVAL; |
c2952c31 FL |
1266 | } |
1267 | ||
d8838de7 | 1268 | if (!rtnl_trylock()) |
1269 | return restart_syscall(); | |
c2952c31 | 1270 | |
d8838de7 | 1271 | ret = bond_option_resend_igmp_set(bond, new_value); |
1272 | if (!ret) | |
1273 | ret = count; | |
1274 | ||
1275 | rtnl_unlock(); | |
c2952c31 FL |
1276 | return ret; |
1277 | } | |
1278 | ||
1279 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, | |
1280 | bonding_show_resend_igmp, bonding_store_resend_igmp); | |
1281 | ||
7eacd038 NH |
1282 | |
1283 | static ssize_t bonding_show_lp_interval(struct device *d, | |
1284 | struct device_attribute *attr, | |
1285 | char *buf) | |
1286 | { | |
1287 | struct bonding *bond = to_bond(d); | |
1288 | return sprintf(buf, "%d\n", bond->params.lp_interval); | |
1289 | } | |
1290 | ||
1291 | static ssize_t bonding_store_lp_interval(struct device *d, | |
1292 | struct device_attribute *attr, | |
1293 | const char *buf, size_t count) | |
1294 | { | |
1295 | struct bonding *bond = to_bond(d); | |
8d836d09 | 1296 | int new_value, ret; |
7eacd038 NH |
1297 | |
1298 | if (sscanf(buf, "%d", &new_value) != 1) { | |
1299 | pr_err("%s: no lp interval value specified.\n", | |
1300 | bond->dev->name); | |
8d836d09 | 1301 | return -EINVAL; |
7eacd038 NH |
1302 | } |
1303 | ||
8d836d09 | 1304 | if (!rtnl_trylock()) |
1305 | return restart_syscall(); | |
7eacd038 | 1306 | |
8d836d09 | 1307 | ret = bond_option_lp_interval_set(bond, new_value); |
1308 | if (!ret) | |
1309 | ret = count; | |
1310 | ||
1311 | rtnl_unlock(); | |
7eacd038 NH |
1312 | return ret; |
1313 | } | |
1314 | ||
1315 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, | |
1316 | bonding_show_lp_interval, bonding_store_lp_interval); | |
1317 | ||
73958329 NA |
1318 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
1319 | struct device_attribute *attr, | |
1320 | char *buf) | |
1321 | { | |
1322 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 1323 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
a752a8b9 | 1324 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 NA |
1325 | } |
1326 | ||
1327 | static ssize_t bonding_store_packets_per_slave(struct device *d, | |
1328 | struct device_attribute *attr, | |
1329 | const char *buf, size_t count) | |
1330 | { | |
1331 | struct bonding *bond = to_bond(d); | |
aa59d851 | 1332 | int ret; |
c13ab3ff | 1333 | |
aa59d851 NA |
1334 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PACKETS_PER_SLAVE, |
1335 | (char *)buf); | |
c13ab3ff | 1336 | if (!ret) |
1337 | ret = count; | |
1338 | ||
73958329 NA |
1339 | return ret; |
1340 | } | |
1341 | ||
1342 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, | |
1343 | bonding_show_packets_per_slave, | |
1344 | bonding_store_packets_per_slave); | |
1345 | ||
b76cdba9 | 1346 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
1347 | &dev_attr_slaves.attr, |
1348 | &dev_attr_mode.attr, | |
dd957c57 | 1349 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 1350 | &dev_attr_arp_validate.attr, |
8599b52e | 1351 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
1352 | &dev_attr_arp_interval.attr, |
1353 | &dev_attr_arp_ip_target.attr, | |
1354 | &dev_attr_downdelay.attr, | |
1355 | &dev_attr_updelay.attr, | |
1356 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 1357 | &dev_attr_ad_select.attr, |
43cb76d9 | 1358 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
1359 | &dev_attr_num_grat_arp.attr, |
1360 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
1361 | &dev_attr_miimon.attr, |
1362 | &dev_attr_primary.attr, | |
a549952a | 1363 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
1364 | &dev_attr_use_carrier.attr, |
1365 | &dev_attr_active_slave.attr, | |
1366 | &dev_attr_mii_status.attr, | |
1367 | &dev_attr_ad_aggregator.attr, | |
1368 | &dev_attr_ad_num_ports.attr, | |
1369 | &dev_attr_ad_actor_key.attr, | |
1370 | &dev_attr_ad_partner_key.attr, | |
1371 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 1372 | &dev_attr_queue_id.attr, |
ebd8e497 | 1373 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 1374 | &dev_attr_resend_igmp.attr, |
655f8919 | 1375 | &dev_attr_min_links.attr, |
7eacd038 | 1376 | &dev_attr_lp_interval.attr, |
73958329 | 1377 | &dev_attr_packets_per_slave.attr, |
b76cdba9 MW |
1378 | NULL, |
1379 | }; | |
1380 | ||
1381 | static struct attribute_group bonding_group = { | |
1382 | .name = "bonding", | |
1383 | .attrs = per_bond_attrs, | |
1384 | }; | |
1385 | ||
1386 | /* | |
1387 | * Initialize sysfs. This sets up the bonding_masters file in | |
1388 | * /sys/class/net. | |
1389 | */ | |
4c22400a | 1390 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 1391 | { |
b8a9787e | 1392 | int ret; |
b76cdba9 | 1393 | |
4c22400a | 1394 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 1395 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 1396 | |
58292cbe TH |
1397 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
1398 | bn->net); | |
877cbd36 JV |
1399 | /* |
1400 | * Permit multiple loads of the module by ignoring failures to | |
1401 | * create the bonding_masters sysfs file. Bonding devices | |
1402 | * created by second or subsequent loads of the module will | |
1403 | * not be listed in, or controllable by, bonding_masters, but | |
1404 | * will have the usual "bonding" sysfs directory. | |
1405 | * | |
1406 | * This is done to preserve backwards compatibility for | |
1407 | * initscripts/sysconfig, which load bonding multiple times to | |
1408 | * configure multiple bonding devices. | |
1409 | */ | |
1410 | if (ret == -EEXIST) { | |
38d2f38b | 1411 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 1412 | if (__dev_get_by_name(bn->net, |
38d2f38b | 1413 | class_attr_bonding_masters.attr.name)) |
a4aee5c8 | 1414 | pr_err("network device named %s already exists in sysfs", |
38d2f38b | 1415 | class_attr_bonding_masters.attr.name); |
130aa61a | 1416 | ret = 0; |
877cbd36 | 1417 | } |
b76cdba9 MW |
1418 | |
1419 | return ret; | |
1420 | ||
1421 | } | |
1422 | ||
1423 | /* | |
1424 | * Remove /sys/class/net/bonding_masters. | |
1425 | */ | |
4c22400a | 1426 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 1427 | { |
58292cbe | 1428 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
1429 | } |
1430 | ||
1431 | /* | |
1432 | * Initialize sysfs for each bond. This sets up and registers | |
1433 | * the 'bondctl' directory for each individual bond under /sys/class/net. | |
1434 | */ | |
6151b3d4 | 1435 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 1436 | { |
6151b3d4 | 1437 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
1438 | } |
1439 |