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 | |
1ef8019b | 43 | #include <net/bonding.h> |
5a03cdb7 | 44 | |
454d7c9b | 45 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
b76cdba9 | 46 | |
dc3e5d18 | 47 | /* "show" function for the bond_masters attribute. |
b76cdba9 MW |
48 | * The class parameter is ignored. |
49 | */ | |
28812fe1 AK |
50 | static ssize_t bonding_show_bonds(struct class *cls, |
51 | struct class_attribute *attr, | |
52 | char *buf) | |
b76cdba9 | 53 | { |
4c22400a EB |
54 | struct bond_net *bn = |
55 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
56 | int res = 0; |
57 | struct bonding *bond; | |
58 | ||
7e083840 | 59 | rtnl_lock(); |
b76cdba9 | 60 | |
ec87fd3b | 61 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
b76cdba9 MW |
62 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
63 | /* not enough space for another interface name */ | |
64 | if ((PAGE_SIZE - res) > 10) | |
65 | res = PAGE_SIZE - 10; | |
b8843665 | 66 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
67 | break; |
68 | } | |
b8843665 | 69 | res += sprintf(buf + res, "%s ", bond->dev->name); |
b76cdba9 | 70 | } |
1dcdcd69 WF |
71 | if (res) |
72 | buf[res-1] = '\n'; /* eat the leftover space */ | |
7e083840 SH |
73 | |
74 | rtnl_unlock(); | |
b76cdba9 MW |
75 | return res; |
76 | } | |
77 | ||
4c22400a | 78 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
373500db SH |
79 | { |
80 | struct bonding *bond; | |
81 | ||
ec87fd3b | 82 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
373500db SH |
83 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
84 | return bond->dev; | |
85 | } | |
86 | return NULL; | |
87 | } | |
88 | ||
dc3e5d18 | 89 | /* "store" function for the bond_masters attribute. This is what |
b76cdba9 MW |
90 | * creates and deletes entire bonds. |
91 | * | |
92 | * The class parameter is ignored. | |
b76cdba9 | 93 | */ |
3d632c3f | 94 | static ssize_t bonding_store_bonds(struct class *cls, |
28812fe1 | 95 | struct class_attribute *attr, |
3d632c3f | 96 | const char *buffer, size_t count) |
b76cdba9 | 97 | { |
4c22400a EB |
98 | struct bond_net *bn = |
99 | container_of(attr, struct bond_net, class_attr_bonding_masters); | |
b76cdba9 MW |
100 | char command[IFNAMSIZ + 1] = {0, }; |
101 | char *ifname; | |
027ea041 | 102 | int rv, res = count; |
b76cdba9 | 103 | |
b76cdba9 MW |
104 | sscanf(buffer, "%16s", command); /* IFNAMSIZ*/ |
105 | ifname = command + 1; | |
106 | if ((strlen(command) <= 1) || | |
107 | !dev_valid_name(ifname)) | |
108 | goto err_no_cmd; | |
109 | ||
110 | if (command[0] == '+') { | |
a4aee5c8 | 111 | pr_info("%s is being created...\n", ifname); |
4c22400a | 112 | rv = bond_create(bn->net, ifname); |
027ea041 | 113 | if (rv) { |
5f86cad1 | 114 | if (rv == -EEXIST) |
90194264 | 115 | pr_info("%s already exists\n", ifname); |
5f86cad1 | 116 | else |
90194264 | 117 | pr_info("%s creation failed\n", ifname); |
027ea041 | 118 | res = rv; |
b76cdba9 | 119 | } |
373500db SH |
120 | } else if (command[0] == '-') { |
121 | struct net_device *bond_dev; | |
b76cdba9 | 122 | |
027ea041 | 123 | rtnl_lock(); |
4c22400a | 124 | bond_dev = bond_get_by_name(bn, ifname); |
373500db | 125 | if (bond_dev) { |
a4aee5c8 | 126 | pr_info("%s is being deleted...\n", ifname); |
373500db SH |
127 | unregister_netdevice(bond_dev); |
128 | } else { | |
a4aee5c8 | 129 | pr_err("unable to delete non-existent %s\n", ifname); |
373500db SH |
130 | res = -ENODEV; |
131 | } | |
132 | rtnl_unlock(); | |
133 | } else | |
134 | goto err_no_cmd; | |
027ea041 | 135 | |
373500db SH |
136 | /* Always return either count or an error. If you return 0, you'll |
137 | * get called forever, which is bad. | |
138 | */ | |
139 | return res; | |
b76cdba9 MW |
140 | |
141 | err_no_cmd: | |
90194264 | 142 | pr_err("no command found in bonding_masters - use +ifname or -ifname\n"); |
c4ebc66a | 143 | return -EPERM; |
b76cdba9 | 144 | } |
373500db | 145 | |
b76cdba9 | 146 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
4c22400a EB |
147 | static const struct class_attribute class_attr_bonding_masters = { |
148 | .attr = { | |
149 | .name = "bonding_masters", | |
150 | .mode = S_IWUSR | S_IRUGO, | |
151 | }, | |
152 | .show = bonding_show_bonds, | |
153 | .store = bonding_store_bonds, | |
4c22400a | 154 | }; |
b76cdba9 | 155 | |
dc3e5d18 NA |
156 | /* Generic "store" method for bonding sysfs option setting */ |
157 | static ssize_t bonding_sysfs_store_option(struct device *d, | |
158 | struct device_attribute *attr, | |
159 | const char *buffer, size_t count) | |
160 | { | |
161 | struct bonding *bond = to_bond(d); | |
162 | const struct bond_option *opt; | |
163 | int ret; | |
164 | ||
165 | opt = bond_opt_get_by_name(attr->attr.name); | |
166 | if (WARN_ON(!opt)) | |
167 | return -ENOENT; | |
168 | ret = bond_opt_tryset_rtnl(bond, opt->id, (char *)buffer); | |
169 | if (!ret) | |
170 | ret = count; | |
171 | ||
172 | return ret; | |
173 | } | |
174 | ||
175 | /* Show the slaves in the current bond. */ | |
43cb76d9 GKH |
176 | static ssize_t bonding_show_slaves(struct device *d, |
177 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 178 | { |
43cb76d9 | 179 | struct bonding *bond = to_bond(d); |
9caff1e7 | 180 | struct list_head *iter; |
dec1e90e | 181 | struct slave *slave; |
182 | int res = 0; | |
b76cdba9 | 183 | |
4d1ae5fb | 184 | if (!rtnl_trylock()) |
185 | return restart_syscall(); | |
186 | ||
9caff1e7 | 187 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
188 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
189 | /* not enough space for another interface name */ | |
190 | if ((PAGE_SIZE - res) > 10) | |
191 | res = PAGE_SIZE - 10; | |
7bd46508 | 192 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
193 | break; |
194 | } | |
195 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
196 | } | |
4d1ae5fb | 197 | |
198 | rtnl_unlock(); | |
199 | ||
1dcdcd69 WF |
200 | if (res) |
201 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 202 | |
b76cdba9 MW |
203 | return res; |
204 | } | |
3d632c3f | 205 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
dc3e5d18 | 206 | bonding_sysfs_store_option); |
b76cdba9 | 207 | |
dc3e5d18 | 208 | /* Show the bonding mode. */ |
43cb76d9 GKH |
209 | static ssize_t bonding_show_mode(struct device *d, |
210 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 211 | { |
43cb76d9 | 212 | struct bonding *bond = to_bond(d); |
f3253339 | 213 | const struct bond_opt_value *val; |
b76cdba9 | 214 | |
01844098 | 215 | val = bond_opt_get_val(BOND_OPT_MODE, BOND_MODE(bond)); |
2b3798d5 | 216 | |
01844098 | 217 | return sprintf(buf, "%s %d\n", val->string, BOND_MODE(bond)); |
b76cdba9 | 218 | } |
3d632c3f | 219 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
dc3e5d18 | 220 | bonding_show_mode, bonding_sysfs_store_option); |
b76cdba9 | 221 | |
dc3e5d18 | 222 | /* Show the bonding transmit hash method. */ |
43cb76d9 GKH |
223 | static ssize_t bonding_show_xmit_hash(struct device *d, |
224 | struct device_attribute *attr, | |
225 | char *buf) | |
b76cdba9 | 226 | { |
43cb76d9 | 227 | struct bonding *bond = to_bond(d); |
f3253339 | 228 | const struct bond_opt_value *val; |
a4b32ce7 NA |
229 | |
230 | val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy); | |
b76cdba9 | 231 | |
a4b32ce7 | 232 | return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy); |
b76cdba9 | 233 | } |
3d632c3f | 234 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
dc3e5d18 | 235 | bonding_show_xmit_hash, bonding_sysfs_store_option); |
b76cdba9 | 236 | |
dc3e5d18 | 237 | /* Show arp_validate. */ |
43cb76d9 GKH |
238 | static ssize_t bonding_show_arp_validate(struct device *d, |
239 | struct device_attribute *attr, | |
240 | char *buf) | |
f5b2b966 | 241 | { |
43cb76d9 | 242 | struct bonding *bond = to_bond(d); |
f3253339 | 243 | const struct bond_opt_value *val; |
16228881 NA |
244 | |
245 | val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE, | |
246 | bond->params.arp_validate); | |
f5b2b966 | 247 | |
16228881 | 248 | return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate); |
f5b2b966 | 249 | } |
3d632c3f | 250 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
dc3e5d18 NA |
251 | bonding_sysfs_store_option); |
252 | ||
253 | /* Show arp_all_targets. */ | |
8599b52e VF |
254 | static ssize_t bonding_show_arp_all_targets(struct device *d, |
255 | struct device_attribute *attr, | |
256 | char *buf) | |
257 | { | |
258 | struct bonding *bond = to_bond(d); | |
f3253339 | 259 | const struct bond_opt_value *val; |
8599b52e | 260 | |
edf36b24 NA |
261 | val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS, |
262 | bond->params.arp_all_targets); | |
263 | return sprintf(buf, "%s %d\n", | |
264 | val->string, bond->params.arp_all_targets); | |
8599b52e | 265 | } |
8599b52e | 266 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, |
dc3e5d18 | 267 | bonding_show_arp_all_targets, bonding_sysfs_store_option); |
f5b2b966 | 268 | |
dc3e5d18 | 269 | /* Show fail_over_mac. */ |
3d632c3f SH |
270 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
271 | struct device_attribute *attr, | |
272 | char *buf) | |
dd957c57 JV |
273 | { |
274 | struct bonding *bond = to_bond(d); | |
f3253339 | 275 | const struct bond_opt_value *val; |
dd957c57 | 276 | |
1df6b6aa NA |
277 | val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, |
278 | bond->params.fail_over_mac); | |
279 | ||
280 | return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac); | |
dd957c57 | 281 | } |
3d632c3f | 282 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
dc3e5d18 | 283 | bonding_show_fail_over_mac, bonding_sysfs_store_option); |
dd957c57 | 284 | |
dc3e5d18 | 285 | /* Show the arp timer interval. */ |
43cb76d9 GKH |
286 | static ssize_t bonding_show_arp_interval(struct device *d, |
287 | struct device_attribute *attr, | |
288 | char *buf) | |
b76cdba9 | 289 | { |
43cb76d9 | 290 | struct bonding *bond = to_bond(d); |
b76cdba9 | 291 | |
7bd46508 | 292 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 | 293 | } |
3d632c3f | 294 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
dc3e5d18 | 295 | bonding_show_arp_interval, bonding_sysfs_store_option); |
b76cdba9 | 296 | |
dc3e5d18 | 297 | /* Show the arp targets. */ |
43cb76d9 GKH |
298 | static ssize_t bonding_show_arp_targets(struct device *d, |
299 | struct device_attribute *attr, | |
300 | char *buf) | |
b76cdba9 | 301 | { |
43cb76d9 | 302 | struct bonding *bond = to_bond(d); |
4fb0ef58 | 303 | int i, res = 0; |
b76cdba9 MW |
304 | |
305 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
306 | if (bond->params.arp_targets[i]) | |
63779436 HH |
307 | res += sprintf(buf + res, "%pI4 ", |
308 | &bond->params.arp_targets[i]); | |
b76cdba9 | 309 | } |
1dcdcd69 WF |
310 | if (res) |
311 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4fb0ef58 | 312 | |
b76cdba9 MW |
313 | return res; |
314 | } | |
dc3e5d18 NA |
315 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR, |
316 | bonding_show_arp_targets, bonding_sysfs_store_option); | |
b76cdba9 | 317 | |
dc3e5d18 | 318 | /* Show the up and down delays. */ |
43cb76d9 GKH |
319 | static ssize_t bonding_show_downdelay(struct device *d, |
320 | struct device_attribute *attr, | |
321 | char *buf) | |
b76cdba9 | 322 | { |
43cb76d9 | 323 | struct bonding *bond = to_bond(d); |
b76cdba9 | 324 | |
7bd46508 | 325 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 | 326 | } |
3d632c3f | 327 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
dc3e5d18 | 328 | bonding_show_downdelay, bonding_sysfs_store_option); |
b76cdba9 | 329 | |
43cb76d9 GKH |
330 | static ssize_t bonding_show_updelay(struct device *d, |
331 | struct device_attribute *attr, | |
332 | char *buf) | |
b76cdba9 | 333 | { |
43cb76d9 | 334 | struct bonding *bond = to_bond(d); |
b76cdba9 | 335 | |
7bd46508 | 336 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
337 | |
338 | } | |
3d632c3f | 339 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
dc3e5d18 | 340 | bonding_show_updelay, bonding_sysfs_store_option); |
b76cdba9 | 341 | |
dc3e5d18 | 342 | /* Show the LACP interval. */ |
43cb76d9 GKH |
343 | static ssize_t bonding_show_lacp(struct device *d, |
344 | struct device_attribute *attr, | |
345 | char *buf) | |
b76cdba9 | 346 | { |
43cb76d9 | 347 | struct bonding *bond = to_bond(d); |
f3253339 | 348 | const struct bond_opt_value *val; |
b76cdba9 | 349 | |
d3131de7 NA |
350 | val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast); |
351 | ||
352 | return sprintf(buf, "%s %d\n", val->string, bond->params.lacp_fast); | |
b76cdba9 | 353 | } |
3d632c3f | 354 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
dc3e5d18 | 355 | bonding_show_lacp, bonding_sysfs_store_option); |
b76cdba9 | 356 | |
655f8919 | 357 | static ssize_t bonding_show_min_links(struct device *d, |
358 | struct device_attribute *attr, | |
359 | char *buf) | |
360 | { | |
361 | struct bonding *bond = to_bond(d); | |
362 | ||
014f1b20 | 363 | return sprintf(buf, "%u\n", bond->params.min_links); |
655f8919 | 364 | } |
655f8919 | 365 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, |
dc3e5d18 | 366 | bonding_show_min_links, bonding_sysfs_store_option); |
655f8919 | 367 | |
fd989c83 JV |
368 | static ssize_t bonding_show_ad_select(struct device *d, |
369 | struct device_attribute *attr, | |
370 | char *buf) | |
371 | { | |
372 | struct bonding *bond = to_bond(d); | |
f3253339 | 373 | const struct bond_opt_value *val; |
fd989c83 | 374 | |
9e5f5eeb NA |
375 | val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select); |
376 | ||
377 | return sprintf(buf, "%s %d\n", val->string, bond->params.ad_select); | |
fd989c83 | 378 | } |
3d632c3f | 379 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
dc3e5d18 | 380 | bonding_show_ad_select, bonding_sysfs_store_option); |
fd989c83 | 381 | |
205845a3 | 382 | /* Show the number of peer notifications to send after a failover event. */ |
ad246c99 BH |
383 | static ssize_t bonding_show_num_peer_notif(struct device *d, |
384 | struct device_attribute *attr, | |
385 | char *buf) | |
386 | { | |
387 | struct bonding *bond = to_bond(d); | |
388 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
389 | } | |
ad246c99 | 390 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
205845a3 | 391 | bonding_show_num_peer_notif, bonding_sysfs_store_option); |
ad246c99 | 392 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
205845a3 | 393 | bonding_show_num_peer_notif, bonding_sysfs_store_option); |
ad246c99 | 394 | |
dc3e5d18 | 395 | /* Show the MII monitor interval. */ |
43cb76d9 GKH |
396 | static ssize_t bonding_show_miimon(struct device *d, |
397 | struct device_attribute *attr, | |
398 | char *buf) | |
b76cdba9 | 399 | { |
43cb76d9 | 400 | struct bonding *bond = to_bond(d); |
b76cdba9 | 401 | |
7bd46508 | 402 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 | 403 | } |
3d632c3f | 404 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
dc3e5d18 | 405 | bonding_show_miimon, bonding_sysfs_store_option); |
b76cdba9 | 406 | |
dc3e5d18 | 407 | /* Show the primary slave. */ |
43cb76d9 GKH |
408 | static ssize_t bonding_show_primary(struct device *d, |
409 | struct device_attribute *attr, | |
410 | char *buf) | |
b76cdba9 | 411 | { |
43cb76d9 | 412 | struct bonding *bond = to_bond(d); |
059b47e8 NA |
413 | struct slave *primary; |
414 | int count = 0; | |
b76cdba9 | 415 | |
059b47e8 NA |
416 | rcu_read_lock(); |
417 | primary = rcu_dereference(bond->primary_slave); | |
418 | if (primary) | |
419 | count = sprintf(buf, "%s\n", primary->dev->name); | |
420 | rcu_read_unlock(); | |
b76cdba9 MW |
421 | |
422 | return count; | |
423 | } | |
3d632c3f | 424 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
dc3e5d18 | 425 | bonding_show_primary, bonding_sysfs_store_option); |
b76cdba9 | 426 | |
dc3e5d18 | 427 | /* Show the primary_reselect flag. */ |
a549952a JP |
428 | static ssize_t bonding_show_primary_reselect(struct device *d, |
429 | struct device_attribute *attr, | |
430 | char *buf) | |
431 | { | |
432 | struct bonding *bond = to_bond(d); | |
f3253339 | 433 | const struct bond_opt_value *val; |
388d3a6d NA |
434 | |
435 | val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, | |
436 | bond->params.primary_reselect); | |
a549952a JP |
437 | |
438 | return sprintf(buf, "%s %d\n", | |
388d3a6d | 439 | val->string, bond->params.primary_reselect); |
a549952a | 440 | } |
a549952a | 441 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, |
dc3e5d18 | 442 | bonding_show_primary_reselect, bonding_sysfs_store_option); |
a549952a | 443 | |
dc3e5d18 | 444 | /* Show the use_carrier flag. */ |
43cb76d9 GKH |
445 | static ssize_t bonding_show_carrier(struct device *d, |
446 | struct device_attribute *attr, | |
447 | char *buf) | |
b76cdba9 | 448 | { |
43cb76d9 | 449 | struct bonding *bond = to_bond(d); |
b76cdba9 | 450 | |
7bd46508 | 451 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 | 452 | } |
3d632c3f | 453 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
dc3e5d18 | 454 | bonding_show_carrier, bonding_sysfs_store_option); |
b76cdba9 MW |
455 | |
456 | ||
dc3e5d18 | 457 | /* Show currently active_slave. */ |
43cb76d9 GKH |
458 | static ssize_t bonding_show_active_slave(struct device *d, |
459 | struct device_attribute *attr, | |
460 | char *buf) | |
b76cdba9 | 461 | { |
43cb76d9 | 462 | struct bonding *bond = to_bond(d); |
752d48b5 | 463 | struct net_device *slave_dev; |
16cd0160 | 464 | int count = 0; |
b76cdba9 | 465 | |
278b2083 | 466 | rcu_read_lock(); |
752d48b5 JP |
467 | slave_dev = bond_option_active_slave_get_rcu(bond); |
468 | if (slave_dev) | |
469 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 470 | rcu_read_unlock(); |
471 | ||
b76cdba9 MW |
472 | return count; |
473 | } | |
3d632c3f | 474 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
dc3e5d18 | 475 | bonding_show_active_slave, bonding_sysfs_store_option); |
b76cdba9 | 476 | |
dc3e5d18 | 477 | /* Show link status of the bond interface. */ |
43cb76d9 GKH |
478 | static ssize_t bonding_show_mii_status(struct device *d, |
479 | struct device_attribute *attr, | |
480 | char *buf) | |
b76cdba9 | 481 | { |
43cb76d9 | 482 | struct bonding *bond = to_bond(d); |
c8086f6d | 483 | bool active = netif_carrier_ok(bond->dev); |
b76cdba9 | 484 | |
c2646b59 | 485 | return sprintf(buf, "%s\n", active ? "up" : "down"); |
b76cdba9 | 486 | } |
43cb76d9 | 487 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
b76cdba9 | 488 | |
dc3e5d18 | 489 | /* Show current 802.3ad aggregator ID. */ |
43cb76d9 GKH |
490 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
491 | struct device_attribute *attr, | |
492 | char *buf) | |
b76cdba9 MW |
493 | { |
494 | int count = 0; | |
43cb76d9 | 495 | struct bonding *bond = to_bond(d); |
b76cdba9 | 496 | |
01844098 | 497 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 498 | struct ad_info ad_info; |
3d632c3f | 499 | count = sprintf(buf, "%d\n", |
318debd8 | 500 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 501 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 502 | } |
b76cdba9 MW |
503 | |
504 | return count; | |
505 | } | |
43cb76d9 | 506 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
507 | |
508 | ||
dc3e5d18 | 509 | /* Show number of active 802.3ad ports. */ |
43cb76d9 GKH |
510 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
511 | struct device_attribute *attr, | |
512 | char *buf) | |
b76cdba9 MW |
513 | { |
514 | int count = 0; | |
43cb76d9 | 515 | struct bonding *bond = to_bond(d); |
b76cdba9 | 516 | |
01844098 | 517 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 518 | struct ad_info ad_info; |
3d632c3f | 519 | count = sprintf(buf, "%d\n", |
318debd8 | 520 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 521 | ? 0 : ad_info.ports); |
b76cdba9 | 522 | } |
b76cdba9 MW |
523 | |
524 | return count; | |
525 | } | |
43cb76d9 | 526 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
527 | |
528 | ||
dc3e5d18 | 529 | /* Show current 802.3ad actor key. */ |
43cb76d9 GKH |
530 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
531 | struct device_attribute *attr, | |
532 | char *buf) | |
b76cdba9 MW |
533 | { |
534 | int count = 0; | |
43cb76d9 | 535 | struct bonding *bond = to_bond(d); |
b76cdba9 | 536 | |
4cd6b475 | 537 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { |
b76cdba9 | 538 | struct ad_info ad_info; |
3d632c3f | 539 | count = sprintf(buf, "%d\n", |
318debd8 | 540 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 541 | ? 0 : ad_info.actor_key); |
b76cdba9 | 542 | } |
b76cdba9 MW |
543 | |
544 | return count; | |
545 | } | |
43cb76d9 | 546 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
547 | |
548 | ||
dc3e5d18 | 549 | /* Show current 802.3ad partner key. */ |
43cb76d9 GKH |
550 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
551 | struct device_attribute *attr, | |
552 | char *buf) | |
b76cdba9 MW |
553 | { |
554 | int count = 0; | |
43cb76d9 | 555 | struct bonding *bond = to_bond(d); |
b76cdba9 | 556 | |
4cd6b475 | 557 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { |
b76cdba9 | 558 | struct ad_info ad_info; |
3d632c3f | 559 | count = sprintf(buf, "%d\n", |
318debd8 | 560 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 561 | ? 0 : ad_info.partner_key); |
b76cdba9 | 562 | } |
b76cdba9 MW |
563 | |
564 | return count; | |
565 | } | |
43cb76d9 | 566 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
567 | |
568 | ||
dc3e5d18 | 569 | /* Show current 802.3ad partner mac. */ |
43cb76d9 GKH |
570 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
571 | struct device_attribute *attr, | |
572 | char *buf) | |
b76cdba9 MW |
573 | { |
574 | int count = 0; | |
43cb76d9 | 575 | struct bonding *bond = to_bond(d); |
b76cdba9 | 576 | |
4cd6b475 | 577 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { |
b76cdba9 | 578 | struct ad_info ad_info; |
3d632c3f | 579 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 580 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 581 | } |
b76cdba9 MW |
582 | |
583 | return count; | |
584 | } | |
43cb76d9 | 585 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 586 | |
dc3e5d18 | 587 | /* Show the queue_ids of the slaves in the current bond. */ |
bb1d9123 AG |
588 | static ssize_t bonding_show_queue_id(struct device *d, |
589 | struct device_attribute *attr, | |
590 | char *buf) | |
591 | { | |
bb1d9123 | 592 | struct bonding *bond = to_bond(d); |
9caff1e7 | 593 | struct list_head *iter; |
dec1e90e | 594 | struct slave *slave; |
595 | int res = 0; | |
bb1d9123 AG |
596 | |
597 | if (!rtnl_trylock()) | |
598 | return restart_syscall(); | |
599 | ||
9caff1e7 | 600 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
601 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
602 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
603 | if ((PAGE_SIZE - res) > 10) |
604 | res = PAGE_SIZE - 10; | |
605 | res += sprintf(buf + res, "++more++ "); | |
606 | break; | |
607 | } | |
608 | res += sprintf(buf + res, "%s:%d ", | |
609 | slave->dev->name, slave->queue_id); | |
610 | } | |
bb1d9123 AG |
611 | if (res) |
612 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 613 | |
bb1d9123 | 614 | rtnl_unlock(); |
dec1e90e | 615 | |
bb1d9123 AG |
616 | return res; |
617 | } | |
bb1d9123 | 618 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, |
dc3e5d18 | 619 | bonding_sysfs_store_option); |
bb1d9123 AG |
620 | |
621 | ||
dc3e5d18 | 622 | /* Show the all_slaves_active flag. */ |
ebd8e497 AG |
623 | static ssize_t bonding_show_slaves_active(struct device *d, |
624 | struct device_attribute *attr, | |
625 | char *buf) | |
626 | { | |
627 | struct bonding *bond = to_bond(d); | |
628 | ||
629 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
630 | } | |
ebd8e497 | 631 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, |
dc3e5d18 | 632 | bonding_show_slaves_active, bonding_sysfs_store_option); |
b76cdba9 | 633 | |
dc3e5d18 | 634 | /* Show the number of IGMP membership reports to send on link failure */ |
c2952c31 | 635 | static ssize_t bonding_show_resend_igmp(struct device *d, |
94265cf5 FL |
636 | struct device_attribute *attr, |
637 | char *buf) | |
c2952c31 FL |
638 | { |
639 | struct bonding *bond = to_bond(d); | |
640 | ||
641 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
642 | } | |
c2952c31 | 643 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, |
dc3e5d18 | 644 | bonding_show_resend_igmp, bonding_sysfs_store_option); |
c2952c31 | 645 | |
7eacd038 NH |
646 | |
647 | static ssize_t bonding_show_lp_interval(struct device *d, | |
648 | struct device_attribute *attr, | |
649 | char *buf) | |
650 | { | |
651 | struct bonding *bond = to_bond(d); | |
8d836d09 | 652 | |
dc3e5d18 | 653 | return sprintf(buf, "%d\n", bond->params.lp_interval); |
7eacd038 | 654 | } |
7eacd038 | 655 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, |
dc3e5d18 | 656 | bonding_show_lp_interval, bonding_sysfs_store_option); |
7eacd038 | 657 | |
e9f0fb88 MB |
658 | static ssize_t bonding_show_tlb_dynamic_lb(struct device *d, |
659 | struct device_attribute *attr, | |
660 | char *buf) | |
661 | { | |
662 | struct bonding *bond = to_bond(d); | |
663 | return sprintf(buf, "%d\n", bond->params.tlb_dynamic_lb); | |
664 | } | |
e9f0fb88 | 665 | static DEVICE_ATTR(tlb_dynamic_lb, S_IRUGO | S_IWUSR, |
dc3e5d18 | 666 | bonding_show_tlb_dynamic_lb, bonding_sysfs_store_option); |
e9f0fb88 | 667 | |
73958329 NA |
668 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
669 | struct device_attribute *attr, | |
670 | char *buf) | |
671 | { | |
672 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 673 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
c13ab3ff | 674 | |
dc3e5d18 | 675 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 | 676 | } |
73958329 | 677 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, |
dc3e5d18 | 678 | bonding_show_packets_per_slave, bonding_sysfs_store_option); |
73958329 | 679 | |
6791e466 MB |
680 | static ssize_t bonding_show_ad_actor_sys_prio(struct device *d, |
681 | struct device_attribute *attr, | |
682 | char *buf) | |
683 | { | |
684 | struct bonding *bond = to_bond(d); | |
685 | ||
4cd6b475 | 686 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) |
6791e466 MB |
687 | return sprintf(buf, "%hu\n", bond->params.ad_actor_sys_prio); |
688 | ||
689 | return 0; | |
690 | } | |
691 | static DEVICE_ATTR(ad_actor_sys_prio, S_IRUGO | S_IWUSR, | |
692 | bonding_show_ad_actor_sys_prio, bonding_sysfs_store_option); | |
693 | ||
74514957 MB |
694 | static ssize_t bonding_show_ad_actor_system(struct device *d, |
695 | struct device_attribute *attr, | |
696 | char *buf) | |
697 | { | |
698 | struct bonding *bond = to_bond(d); | |
699 | ||
4cd6b475 | 700 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) |
74514957 MB |
701 | return sprintf(buf, "%pM\n", bond->params.ad_actor_system); |
702 | ||
703 | return 0; | |
704 | } | |
705 | ||
706 | static DEVICE_ATTR(ad_actor_system, S_IRUGO | S_IWUSR, | |
707 | bonding_show_ad_actor_system, bonding_sysfs_store_option); | |
708 | ||
d22a5fc0 MB |
709 | static ssize_t bonding_show_ad_user_port_key(struct device *d, |
710 | struct device_attribute *attr, | |
711 | char *buf) | |
712 | { | |
713 | struct bonding *bond = to_bond(d); | |
714 | ||
4cd6b475 | 715 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) |
d22a5fc0 MB |
716 | return sprintf(buf, "%hu\n", bond->params.ad_user_port_key); |
717 | ||
718 | return 0; | |
719 | } | |
720 | static DEVICE_ATTR(ad_user_port_key, S_IRUGO | S_IWUSR, | |
721 | bonding_show_ad_user_port_key, bonding_sysfs_store_option); | |
722 | ||
b76cdba9 | 723 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
724 | &dev_attr_slaves.attr, |
725 | &dev_attr_mode.attr, | |
dd957c57 | 726 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 727 | &dev_attr_arp_validate.attr, |
8599b52e | 728 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
729 | &dev_attr_arp_interval.attr, |
730 | &dev_attr_arp_ip_target.attr, | |
731 | &dev_attr_downdelay.attr, | |
732 | &dev_attr_updelay.attr, | |
733 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 734 | &dev_attr_ad_select.attr, |
43cb76d9 | 735 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
736 | &dev_attr_num_grat_arp.attr, |
737 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
738 | &dev_attr_miimon.attr, |
739 | &dev_attr_primary.attr, | |
a549952a | 740 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
741 | &dev_attr_use_carrier.attr, |
742 | &dev_attr_active_slave.attr, | |
743 | &dev_attr_mii_status.attr, | |
744 | &dev_attr_ad_aggregator.attr, | |
745 | &dev_attr_ad_num_ports.attr, | |
746 | &dev_attr_ad_actor_key.attr, | |
747 | &dev_attr_ad_partner_key.attr, | |
748 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 749 | &dev_attr_queue_id.attr, |
ebd8e497 | 750 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 751 | &dev_attr_resend_igmp.attr, |
655f8919 | 752 | &dev_attr_min_links.attr, |
7eacd038 | 753 | &dev_attr_lp_interval.attr, |
73958329 | 754 | &dev_attr_packets_per_slave.attr, |
e9f0fb88 | 755 | &dev_attr_tlb_dynamic_lb.attr, |
6791e466 | 756 | &dev_attr_ad_actor_sys_prio.attr, |
74514957 | 757 | &dev_attr_ad_actor_system.attr, |
d22a5fc0 | 758 | &dev_attr_ad_user_port_key.attr, |
b76cdba9 MW |
759 | NULL, |
760 | }; | |
761 | ||
762 | static struct attribute_group bonding_group = { | |
763 | .name = "bonding", | |
764 | .attrs = per_bond_attrs, | |
765 | }; | |
766 | ||
dc3e5d18 | 767 | /* Initialize sysfs. This sets up the bonding_masters file in |
b76cdba9 MW |
768 | * /sys/class/net. |
769 | */ | |
4c22400a | 770 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 771 | { |
b8a9787e | 772 | int ret; |
b76cdba9 | 773 | |
4c22400a | 774 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 775 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 776 | |
58292cbe TH |
777 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
778 | bn->net); | |
dc3e5d18 | 779 | /* Permit multiple loads of the module by ignoring failures to |
877cbd36 JV |
780 | * create the bonding_masters sysfs file. Bonding devices |
781 | * created by second or subsequent loads of the module will | |
782 | * not be listed in, or controllable by, bonding_masters, but | |
783 | * will have the usual "bonding" sysfs directory. | |
784 | * | |
785 | * This is done to preserve backwards compatibility for | |
786 | * initscripts/sysconfig, which load bonding multiple times to | |
787 | * configure multiple bonding devices. | |
788 | */ | |
789 | if (ret == -EEXIST) { | |
38d2f38b | 790 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 791 | if (__dev_get_by_name(bn->net, |
38d2f38b | 792 | class_attr_bonding_masters.attr.name)) |
90194264 | 793 | pr_err("network device named %s already exists in sysfs\n", |
38d2f38b | 794 | class_attr_bonding_masters.attr.name); |
130aa61a | 795 | ret = 0; |
877cbd36 | 796 | } |
b76cdba9 MW |
797 | |
798 | return ret; | |
799 | ||
800 | } | |
801 | ||
dc3e5d18 | 802 | /* Remove /sys/class/net/bonding_masters. */ |
4c22400a | 803 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 804 | { |
58292cbe | 805 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
806 | } |
807 | ||
dc3e5d18 | 808 | /* Initialize sysfs for each bond. This sets up and registers |
b76cdba9 MW |
809 | * the 'bondctl' directory for each individual bond under /sys/class/net. |
810 | */ | |
6151b3d4 | 811 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 812 | { |
6151b3d4 | 813 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
814 | } |
815 |