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> |
174cd4b1 | 27 | #include <linux/sched/signal.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", | |
d61e4038 | 150 | .mode = 0644, |
4c22400a EB |
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; | |
5b3df177 | 163 | char *buffer_clone; |
dc3e5d18 NA |
164 | int ret; |
165 | ||
166 | opt = bond_opt_get_by_name(attr->attr.name); | |
167 | if (WARN_ON(!opt)) | |
168 | return -ENOENT; | |
5b3df177 NA |
169 | buffer_clone = kstrndup(buffer, count, GFP_KERNEL); |
170 | if (!buffer_clone) | |
171 | return -ENOMEM; | |
172 | ret = bond_opt_tryset_rtnl(bond, opt->id, buffer_clone); | |
dc3e5d18 NA |
173 | if (!ret) |
174 | ret = count; | |
5b3df177 | 175 | kfree(buffer_clone); |
dc3e5d18 NA |
176 | |
177 | return ret; | |
178 | } | |
179 | ||
180 | /* Show the slaves in the current bond. */ | |
43cb76d9 GKH |
181 | static ssize_t bonding_show_slaves(struct device *d, |
182 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 183 | { |
43cb76d9 | 184 | struct bonding *bond = to_bond(d); |
9caff1e7 | 185 | struct list_head *iter; |
dec1e90e | 186 | struct slave *slave; |
187 | int res = 0; | |
b76cdba9 | 188 | |
4d1ae5fb | 189 | if (!rtnl_trylock()) |
190 | return restart_syscall(); | |
191 | ||
9caff1e7 | 192 | bond_for_each_slave(bond, slave, iter) { |
b76cdba9 MW |
193 | if (res > (PAGE_SIZE - IFNAMSIZ)) { |
194 | /* not enough space for another interface name */ | |
195 | if ((PAGE_SIZE - res) > 10) | |
196 | res = PAGE_SIZE - 10; | |
7bd46508 | 197 | res += sprintf(buf + res, "++more++ "); |
b76cdba9 MW |
198 | break; |
199 | } | |
200 | res += sprintf(buf + res, "%s ", slave->dev->name); | |
201 | } | |
4d1ae5fb | 202 | |
203 | rtnl_unlock(); | |
204 | ||
1dcdcd69 WF |
205 | if (res) |
206 | buf[res-1] = '\n'; /* eat the leftover space */ | |
dec1e90e | 207 | |
b76cdba9 MW |
208 | return res; |
209 | } | |
d61e4038 | 210 | static DEVICE_ATTR(slaves, 0644, bonding_show_slaves, |
dc3e5d18 | 211 | bonding_sysfs_store_option); |
b76cdba9 | 212 | |
dc3e5d18 | 213 | /* Show the bonding mode. */ |
43cb76d9 GKH |
214 | static ssize_t bonding_show_mode(struct device *d, |
215 | struct device_attribute *attr, char *buf) | |
b76cdba9 | 216 | { |
43cb76d9 | 217 | struct bonding *bond = to_bond(d); |
f3253339 | 218 | const struct bond_opt_value *val; |
b76cdba9 | 219 | |
01844098 | 220 | val = bond_opt_get_val(BOND_OPT_MODE, BOND_MODE(bond)); |
2b3798d5 | 221 | |
01844098 | 222 | return sprintf(buf, "%s %d\n", val->string, BOND_MODE(bond)); |
b76cdba9 | 223 | } |
d61e4038 | 224 | static DEVICE_ATTR(mode, 0644, bonding_show_mode, bonding_sysfs_store_option); |
b76cdba9 | 225 | |
dc3e5d18 | 226 | /* Show the bonding transmit hash method. */ |
43cb76d9 GKH |
227 | static ssize_t bonding_show_xmit_hash(struct device *d, |
228 | struct device_attribute *attr, | |
229 | char *buf) | |
b76cdba9 | 230 | { |
43cb76d9 | 231 | struct bonding *bond = to_bond(d); |
f3253339 | 232 | const struct bond_opt_value *val; |
a4b32ce7 NA |
233 | |
234 | val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy); | |
b76cdba9 | 235 | |
a4b32ce7 | 236 | return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy); |
b76cdba9 | 237 | } |
d61e4038 | 238 | static DEVICE_ATTR(xmit_hash_policy, 0644, |
dc3e5d18 | 239 | bonding_show_xmit_hash, bonding_sysfs_store_option); |
b76cdba9 | 240 | |
dc3e5d18 | 241 | /* Show arp_validate. */ |
43cb76d9 GKH |
242 | static ssize_t bonding_show_arp_validate(struct device *d, |
243 | struct device_attribute *attr, | |
244 | char *buf) | |
f5b2b966 | 245 | { |
43cb76d9 | 246 | struct bonding *bond = to_bond(d); |
f3253339 | 247 | const struct bond_opt_value *val; |
16228881 NA |
248 | |
249 | val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE, | |
250 | bond->params.arp_validate); | |
f5b2b966 | 251 | |
16228881 | 252 | return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate); |
f5b2b966 | 253 | } |
d61e4038 | 254 | static DEVICE_ATTR(arp_validate, 0644, bonding_show_arp_validate, |
dc3e5d18 NA |
255 | bonding_sysfs_store_option); |
256 | ||
257 | /* Show arp_all_targets. */ | |
8599b52e VF |
258 | static ssize_t bonding_show_arp_all_targets(struct device *d, |
259 | struct device_attribute *attr, | |
260 | char *buf) | |
261 | { | |
262 | struct bonding *bond = to_bond(d); | |
f3253339 | 263 | const struct bond_opt_value *val; |
8599b52e | 264 | |
edf36b24 NA |
265 | val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS, |
266 | bond->params.arp_all_targets); | |
267 | return sprintf(buf, "%s %d\n", | |
268 | val->string, bond->params.arp_all_targets); | |
8599b52e | 269 | } |
d61e4038 | 270 | static DEVICE_ATTR(arp_all_targets, 0644, |
dc3e5d18 | 271 | bonding_show_arp_all_targets, bonding_sysfs_store_option); |
f5b2b966 | 272 | |
dc3e5d18 | 273 | /* Show fail_over_mac. */ |
3d632c3f SH |
274 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
275 | struct device_attribute *attr, | |
276 | char *buf) | |
dd957c57 JV |
277 | { |
278 | struct bonding *bond = to_bond(d); | |
f3253339 | 279 | const struct bond_opt_value *val; |
dd957c57 | 280 | |
1df6b6aa NA |
281 | val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, |
282 | bond->params.fail_over_mac); | |
283 | ||
284 | return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac); | |
dd957c57 | 285 | } |
d61e4038 | 286 | static DEVICE_ATTR(fail_over_mac, 0644, |
dc3e5d18 | 287 | bonding_show_fail_over_mac, bonding_sysfs_store_option); |
dd957c57 | 288 | |
dc3e5d18 | 289 | /* Show the arp timer interval. */ |
43cb76d9 GKH |
290 | static ssize_t bonding_show_arp_interval(struct device *d, |
291 | struct device_attribute *attr, | |
292 | char *buf) | |
b76cdba9 | 293 | { |
43cb76d9 | 294 | struct bonding *bond = to_bond(d); |
b76cdba9 | 295 | |
7bd46508 | 296 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
b76cdba9 | 297 | } |
d61e4038 | 298 | static DEVICE_ATTR(arp_interval, 0644, |
dc3e5d18 | 299 | bonding_show_arp_interval, bonding_sysfs_store_option); |
b76cdba9 | 300 | |
dc3e5d18 | 301 | /* Show the arp targets. */ |
43cb76d9 GKH |
302 | static ssize_t bonding_show_arp_targets(struct device *d, |
303 | struct device_attribute *attr, | |
304 | char *buf) | |
b76cdba9 | 305 | { |
43cb76d9 | 306 | struct bonding *bond = to_bond(d); |
4fb0ef58 | 307 | int i, res = 0; |
b76cdba9 MW |
308 | |
309 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { | |
310 | if (bond->params.arp_targets[i]) | |
63779436 HH |
311 | res += sprintf(buf + res, "%pI4 ", |
312 | &bond->params.arp_targets[i]); | |
b76cdba9 | 313 | } |
1dcdcd69 WF |
314 | if (res) |
315 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4fb0ef58 | 316 | |
b76cdba9 MW |
317 | return res; |
318 | } | |
d61e4038 | 319 | static DEVICE_ATTR(arp_ip_target, 0644, |
dc3e5d18 | 320 | bonding_show_arp_targets, bonding_sysfs_store_option); |
b76cdba9 | 321 | |
dc3e5d18 | 322 | /* Show the up and down delays. */ |
43cb76d9 GKH |
323 | static ssize_t bonding_show_downdelay(struct device *d, |
324 | struct device_attribute *attr, | |
325 | char *buf) | |
b76cdba9 | 326 | { |
43cb76d9 | 327 | struct bonding *bond = to_bond(d); |
b76cdba9 | 328 | |
7bd46508 | 329 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
b76cdba9 | 330 | } |
d61e4038 | 331 | static DEVICE_ATTR(downdelay, 0644, |
dc3e5d18 | 332 | bonding_show_downdelay, bonding_sysfs_store_option); |
b76cdba9 | 333 | |
43cb76d9 GKH |
334 | static ssize_t bonding_show_updelay(struct device *d, |
335 | struct device_attribute *attr, | |
336 | char *buf) | |
b76cdba9 | 337 | { |
43cb76d9 | 338 | struct bonding *bond = to_bond(d); |
b76cdba9 | 339 | |
7bd46508 | 340 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
b76cdba9 MW |
341 | |
342 | } | |
d61e4038 | 343 | static DEVICE_ATTR(updelay, 0644, |
dc3e5d18 | 344 | bonding_show_updelay, bonding_sysfs_store_option); |
b76cdba9 | 345 | |
dc3e5d18 | 346 | /* Show the LACP interval. */ |
43cb76d9 GKH |
347 | static ssize_t bonding_show_lacp(struct device *d, |
348 | struct device_attribute *attr, | |
349 | char *buf) | |
b76cdba9 | 350 | { |
43cb76d9 | 351 | struct bonding *bond = to_bond(d); |
f3253339 | 352 | const struct bond_opt_value *val; |
b76cdba9 | 353 | |
d3131de7 NA |
354 | val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast); |
355 | ||
356 | return sprintf(buf, "%s %d\n", val->string, bond->params.lacp_fast); | |
b76cdba9 | 357 | } |
d61e4038 | 358 | static DEVICE_ATTR(lacp_rate, 0644, |
dc3e5d18 | 359 | bonding_show_lacp, bonding_sysfs_store_option); |
b76cdba9 | 360 | |
655f8919 | 361 | static ssize_t bonding_show_min_links(struct device *d, |
362 | struct device_attribute *attr, | |
363 | char *buf) | |
364 | { | |
365 | struct bonding *bond = to_bond(d); | |
366 | ||
014f1b20 | 367 | return sprintf(buf, "%u\n", bond->params.min_links); |
655f8919 | 368 | } |
d61e4038 | 369 | static DEVICE_ATTR(min_links, 0644, |
dc3e5d18 | 370 | bonding_show_min_links, bonding_sysfs_store_option); |
655f8919 | 371 | |
fd989c83 JV |
372 | static ssize_t bonding_show_ad_select(struct device *d, |
373 | struct device_attribute *attr, | |
374 | char *buf) | |
375 | { | |
376 | struct bonding *bond = to_bond(d); | |
f3253339 | 377 | const struct bond_opt_value *val; |
fd989c83 | 378 | |
9e5f5eeb NA |
379 | val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select); |
380 | ||
381 | return sprintf(buf, "%s %d\n", val->string, bond->params.ad_select); | |
fd989c83 | 382 | } |
d61e4038 | 383 | static DEVICE_ATTR(ad_select, 0644, |
dc3e5d18 | 384 | bonding_show_ad_select, bonding_sysfs_store_option); |
fd989c83 | 385 | |
205845a3 | 386 | /* Show the number of peer notifications to send after a failover event. */ |
ad246c99 BH |
387 | static ssize_t bonding_show_num_peer_notif(struct device *d, |
388 | struct device_attribute *attr, | |
389 | char *buf) | |
390 | { | |
391 | struct bonding *bond = to_bond(d); | |
392 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); | |
393 | } | |
d61e4038 | 394 | static DEVICE_ATTR(num_grat_arp, 0644, |
205845a3 | 395 | bonding_show_num_peer_notif, bonding_sysfs_store_option); |
d61e4038 | 396 | static DEVICE_ATTR(num_unsol_na, 0644, |
205845a3 | 397 | bonding_show_num_peer_notif, bonding_sysfs_store_option); |
ad246c99 | 398 | |
dc3e5d18 | 399 | /* Show the MII monitor interval. */ |
43cb76d9 GKH |
400 | static ssize_t bonding_show_miimon(struct device *d, |
401 | struct device_attribute *attr, | |
402 | char *buf) | |
b76cdba9 | 403 | { |
43cb76d9 | 404 | struct bonding *bond = to_bond(d); |
b76cdba9 | 405 | |
7bd46508 | 406 | return sprintf(buf, "%d\n", bond->params.miimon); |
b76cdba9 | 407 | } |
d61e4038 | 408 | static DEVICE_ATTR(miimon, 0644, |
dc3e5d18 | 409 | bonding_show_miimon, bonding_sysfs_store_option); |
b76cdba9 | 410 | |
dc3e5d18 | 411 | /* Show the primary slave. */ |
43cb76d9 GKH |
412 | static ssize_t bonding_show_primary(struct device *d, |
413 | struct device_attribute *attr, | |
414 | char *buf) | |
b76cdba9 | 415 | { |
43cb76d9 | 416 | struct bonding *bond = to_bond(d); |
059b47e8 NA |
417 | struct slave *primary; |
418 | int count = 0; | |
b76cdba9 | 419 | |
059b47e8 NA |
420 | rcu_read_lock(); |
421 | primary = rcu_dereference(bond->primary_slave); | |
422 | if (primary) | |
423 | count = sprintf(buf, "%s\n", primary->dev->name); | |
424 | rcu_read_unlock(); | |
b76cdba9 MW |
425 | |
426 | return count; | |
427 | } | |
d61e4038 | 428 | static DEVICE_ATTR(primary, 0644, |
dc3e5d18 | 429 | bonding_show_primary, bonding_sysfs_store_option); |
b76cdba9 | 430 | |
dc3e5d18 | 431 | /* Show the primary_reselect flag. */ |
a549952a JP |
432 | static ssize_t bonding_show_primary_reselect(struct device *d, |
433 | struct device_attribute *attr, | |
434 | char *buf) | |
435 | { | |
436 | struct bonding *bond = to_bond(d); | |
f3253339 | 437 | const struct bond_opt_value *val; |
388d3a6d NA |
438 | |
439 | val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, | |
440 | bond->params.primary_reselect); | |
a549952a JP |
441 | |
442 | return sprintf(buf, "%s %d\n", | |
388d3a6d | 443 | val->string, bond->params.primary_reselect); |
a549952a | 444 | } |
d61e4038 | 445 | static DEVICE_ATTR(primary_reselect, 0644, |
dc3e5d18 | 446 | bonding_show_primary_reselect, bonding_sysfs_store_option); |
a549952a | 447 | |
dc3e5d18 | 448 | /* Show the use_carrier flag. */ |
43cb76d9 GKH |
449 | static ssize_t bonding_show_carrier(struct device *d, |
450 | struct device_attribute *attr, | |
451 | char *buf) | |
b76cdba9 | 452 | { |
43cb76d9 | 453 | struct bonding *bond = to_bond(d); |
b76cdba9 | 454 | |
7bd46508 | 455 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
b76cdba9 | 456 | } |
d61e4038 | 457 | static DEVICE_ATTR(use_carrier, 0644, |
dc3e5d18 | 458 | bonding_show_carrier, bonding_sysfs_store_option); |
b76cdba9 MW |
459 | |
460 | ||
dc3e5d18 | 461 | /* Show currently active_slave. */ |
43cb76d9 GKH |
462 | static ssize_t bonding_show_active_slave(struct device *d, |
463 | struct device_attribute *attr, | |
464 | char *buf) | |
b76cdba9 | 465 | { |
43cb76d9 | 466 | struct bonding *bond = to_bond(d); |
752d48b5 | 467 | struct net_device *slave_dev; |
16cd0160 | 468 | int count = 0; |
b76cdba9 | 469 | |
278b2083 | 470 | rcu_read_lock(); |
752d48b5 JP |
471 | slave_dev = bond_option_active_slave_get_rcu(bond); |
472 | if (slave_dev) | |
473 | count = sprintf(buf, "%s\n", slave_dev->name); | |
278b2083 | 474 | rcu_read_unlock(); |
475 | ||
b76cdba9 MW |
476 | return count; |
477 | } | |
d61e4038 | 478 | static DEVICE_ATTR(active_slave, 0644, |
dc3e5d18 | 479 | bonding_show_active_slave, bonding_sysfs_store_option); |
b76cdba9 | 480 | |
dc3e5d18 | 481 | /* Show link status of the bond interface. */ |
43cb76d9 GKH |
482 | static ssize_t bonding_show_mii_status(struct device *d, |
483 | struct device_attribute *attr, | |
484 | char *buf) | |
b76cdba9 | 485 | { |
43cb76d9 | 486 | struct bonding *bond = to_bond(d); |
c8086f6d | 487 | bool active = netif_carrier_ok(bond->dev); |
b76cdba9 | 488 | |
c2646b59 | 489 | return sprintf(buf, "%s\n", active ? "up" : "down"); |
b76cdba9 | 490 | } |
d61e4038 | 491 | static DEVICE_ATTR(mii_status, 0444, bonding_show_mii_status, NULL); |
b76cdba9 | 492 | |
dc3e5d18 | 493 | /* Show current 802.3ad aggregator ID. */ |
43cb76d9 GKH |
494 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
495 | struct device_attribute *attr, | |
496 | char *buf) | |
b76cdba9 MW |
497 | { |
498 | int count = 0; | |
43cb76d9 | 499 | struct bonding *bond = to_bond(d); |
b76cdba9 | 500 | |
01844098 | 501 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 502 | struct ad_info ad_info; |
3d632c3f | 503 | count = sprintf(buf, "%d\n", |
318debd8 | 504 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 505 | ? 0 : ad_info.aggregator_id); |
b76cdba9 | 506 | } |
b76cdba9 MW |
507 | |
508 | return count; | |
509 | } | |
d61e4038 | 510 | static DEVICE_ATTR(ad_aggregator, 0444, bonding_show_ad_aggregator, NULL); |
b76cdba9 MW |
511 | |
512 | ||
dc3e5d18 | 513 | /* Show number of active 802.3ad ports. */ |
43cb76d9 GKH |
514 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
515 | struct device_attribute *attr, | |
516 | char *buf) | |
b76cdba9 MW |
517 | { |
518 | int count = 0; | |
43cb76d9 | 519 | struct bonding *bond = to_bond(d); |
b76cdba9 | 520 | |
01844098 | 521 | if (BOND_MODE(bond) == BOND_MODE_8023AD) { |
b76cdba9 | 522 | struct ad_info ad_info; |
3d632c3f | 523 | count = sprintf(buf, "%d\n", |
318debd8 | 524 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 525 | ? 0 : ad_info.ports); |
b76cdba9 | 526 | } |
b76cdba9 MW |
527 | |
528 | return count; | |
529 | } | |
d61e4038 | 530 | static DEVICE_ATTR(ad_num_ports, 0444, bonding_show_ad_num_ports, NULL); |
b76cdba9 MW |
531 | |
532 | ||
dc3e5d18 | 533 | /* Show current 802.3ad actor key. */ |
43cb76d9 GKH |
534 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
535 | struct device_attribute *attr, | |
536 | char *buf) | |
b76cdba9 MW |
537 | { |
538 | int count = 0; | |
43cb76d9 | 539 | struct bonding *bond = to_bond(d); |
b76cdba9 | 540 | |
4cd6b475 | 541 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { |
b76cdba9 | 542 | struct ad_info ad_info; |
3d632c3f | 543 | count = sprintf(buf, "%d\n", |
318debd8 | 544 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 545 | ? 0 : ad_info.actor_key); |
b76cdba9 | 546 | } |
b76cdba9 MW |
547 | |
548 | return count; | |
549 | } | |
d61e4038 | 550 | static DEVICE_ATTR(ad_actor_key, 0444, bonding_show_ad_actor_key, NULL); |
b76cdba9 MW |
551 | |
552 | ||
dc3e5d18 | 553 | /* Show current 802.3ad partner key. */ |
43cb76d9 GKH |
554 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
555 | struct device_attribute *attr, | |
556 | char *buf) | |
b76cdba9 MW |
557 | { |
558 | int count = 0; | |
43cb76d9 | 559 | struct bonding *bond = to_bond(d); |
b76cdba9 | 560 | |
4cd6b475 | 561 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { |
b76cdba9 | 562 | struct ad_info ad_info; |
3d632c3f | 563 | count = sprintf(buf, "%d\n", |
318debd8 | 564 | bond_3ad_get_active_agg_info(bond, &ad_info) |
3d632c3f | 565 | ? 0 : ad_info.partner_key); |
b76cdba9 | 566 | } |
b76cdba9 MW |
567 | |
568 | return count; | |
569 | } | |
d61e4038 | 570 | static DEVICE_ATTR(ad_partner_key, 0444, bonding_show_ad_partner_key, NULL); |
b76cdba9 MW |
571 | |
572 | ||
dc3e5d18 | 573 | /* Show current 802.3ad partner mac. */ |
43cb76d9 GKH |
574 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
575 | struct device_attribute *attr, | |
576 | char *buf) | |
b76cdba9 MW |
577 | { |
578 | int count = 0; | |
43cb76d9 | 579 | struct bonding *bond = to_bond(d); |
b76cdba9 | 580 | |
4cd6b475 | 581 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) { |
b76cdba9 | 582 | struct ad_info ad_info; |
3d632c3f | 583 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
e174961c | 584 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
b76cdba9 | 585 | } |
b76cdba9 MW |
586 | |
587 | return count; | |
588 | } | |
d61e4038 | 589 | static DEVICE_ATTR(ad_partner_mac, 0444, bonding_show_ad_partner_mac, NULL); |
b76cdba9 | 590 | |
dc3e5d18 | 591 | /* Show the queue_ids of the slaves in the current bond. */ |
bb1d9123 AG |
592 | static ssize_t bonding_show_queue_id(struct device *d, |
593 | struct device_attribute *attr, | |
594 | char *buf) | |
595 | { | |
bb1d9123 | 596 | struct bonding *bond = to_bond(d); |
9caff1e7 | 597 | struct list_head *iter; |
dec1e90e | 598 | struct slave *slave; |
599 | int res = 0; | |
bb1d9123 AG |
600 | |
601 | if (!rtnl_trylock()) | |
602 | return restart_syscall(); | |
603 | ||
9caff1e7 | 604 | bond_for_each_slave(bond, slave, iter) { |
79236680 NP |
605 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
606 | /* not enough space for another interface_name:queue_id pair */ | |
bb1d9123 AG |
607 | if ((PAGE_SIZE - res) > 10) |
608 | res = PAGE_SIZE - 10; | |
609 | res += sprintf(buf + res, "++more++ "); | |
610 | break; | |
611 | } | |
612 | res += sprintf(buf + res, "%s:%d ", | |
613 | slave->dev->name, slave->queue_id); | |
614 | } | |
bb1d9123 AG |
615 | if (res) |
616 | buf[res-1] = '\n'; /* eat the leftover space */ | |
4d1ae5fb | 617 | |
bb1d9123 | 618 | rtnl_unlock(); |
dec1e90e | 619 | |
bb1d9123 AG |
620 | return res; |
621 | } | |
d61e4038 | 622 | static DEVICE_ATTR(queue_id, 0644, bonding_show_queue_id, |
dc3e5d18 | 623 | bonding_sysfs_store_option); |
bb1d9123 AG |
624 | |
625 | ||
dc3e5d18 | 626 | /* Show the all_slaves_active flag. */ |
ebd8e497 AG |
627 | static ssize_t bonding_show_slaves_active(struct device *d, |
628 | struct device_attribute *attr, | |
629 | char *buf) | |
630 | { | |
631 | struct bonding *bond = to_bond(d); | |
632 | ||
633 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); | |
634 | } | |
d61e4038 | 635 | static DEVICE_ATTR(all_slaves_active, 0644, |
dc3e5d18 | 636 | bonding_show_slaves_active, bonding_sysfs_store_option); |
b76cdba9 | 637 | |
dc3e5d18 | 638 | /* Show the number of IGMP membership reports to send on link failure */ |
c2952c31 | 639 | static ssize_t bonding_show_resend_igmp(struct device *d, |
94265cf5 FL |
640 | struct device_attribute *attr, |
641 | char *buf) | |
c2952c31 FL |
642 | { |
643 | struct bonding *bond = to_bond(d); | |
644 | ||
645 | return sprintf(buf, "%d\n", bond->params.resend_igmp); | |
646 | } | |
d61e4038 | 647 | static DEVICE_ATTR(resend_igmp, 0644, |
dc3e5d18 | 648 | bonding_show_resend_igmp, bonding_sysfs_store_option); |
c2952c31 | 649 | |
7eacd038 NH |
650 | |
651 | static ssize_t bonding_show_lp_interval(struct device *d, | |
652 | struct device_attribute *attr, | |
653 | char *buf) | |
654 | { | |
655 | struct bonding *bond = to_bond(d); | |
8d836d09 | 656 | |
dc3e5d18 | 657 | return sprintf(buf, "%d\n", bond->params.lp_interval); |
7eacd038 | 658 | } |
d61e4038 | 659 | static DEVICE_ATTR(lp_interval, 0644, |
dc3e5d18 | 660 | bonding_show_lp_interval, bonding_sysfs_store_option); |
7eacd038 | 661 | |
e9f0fb88 MB |
662 | static ssize_t bonding_show_tlb_dynamic_lb(struct device *d, |
663 | struct device_attribute *attr, | |
664 | char *buf) | |
665 | { | |
666 | struct bonding *bond = to_bond(d); | |
667 | return sprintf(buf, "%d\n", bond->params.tlb_dynamic_lb); | |
668 | } | |
d61e4038 | 669 | static DEVICE_ATTR(tlb_dynamic_lb, 0644, |
dc3e5d18 | 670 | bonding_show_tlb_dynamic_lb, bonding_sysfs_store_option); |
e9f0fb88 | 671 | |
73958329 NA |
672 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
673 | struct device_attribute *attr, | |
674 | char *buf) | |
675 | { | |
676 | struct bonding *bond = to_bond(d); | |
a752a8b9 | 677 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
c13ab3ff | 678 | |
dc3e5d18 | 679 | return sprintf(buf, "%u\n", packets_per_slave); |
73958329 | 680 | } |
d61e4038 | 681 | static DEVICE_ATTR(packets_per_slave, 0644, |
dc3e5d18 | 682 | bonding_show_packets_per_slave, bonding_sysfs_store_option); |
73958329 | 683 | |
6791e466 MB |
684 | static ssize_t bonding_show_ad_actor_sys_prio(struct device *d, |
685 | struct device_attribute *attr, | |
686 | char *buf) | |
687 | { | |
688 | struct bonding *bond = to_bond(d); | |
689 | ||
4cd6b475 | 690 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) |
6791e466 MB |
691 | return sprintf(buf, "%hu\n", bond->params.ad_actor_sys_prio); |
692 | ||
693 | return 0; | |
694 | } | |
d61e4038 | 695 | static DEVICE_ATTR(ad_actor_sys_prio, 0644, |
6791e466 MB |
696 | bonding_show_ad_actor_sys_prio, bonding_sysfs_store_option); |
697 | ||
74514957 MB |
698 | static ssize_t bonding_show_ad_actor_system(struct device *d, |
699 | struct device_attribute *attr, | |
700 | char *buf) | |
701 | { | |
702 | struct bonding *bond = to_bond(d); | |
703 | ||
4cd6b475 | 704 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) |
74514957 MB |
705 | return sprintf(buf, "%pM\n", bond->params.ad_actor_system); |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
d61e4038 | 710 | static DEVICE_ATTR(ad_actor_system, 0644, |
74514957 MB |
711 | bonding_show_ad_actor_system, bonding_sysfs_store_option); |
712 | ||
d22a5fc0 MB |
713 | static ssize_t bonding_show_ad_user_port_key(struct device *d, |
714 | struct device_attribute *attr, | |
715 | char *buf) | |
716 | { | |
717 | struct bonding *bond = to_bond(d); | |
718 | ||
4cd6b475 | 719 | if (BOND_MODE(bond) == BOND_MODE_8023AD && capable(CAP_NET_ADMIN)) |
d22a5fc0 MB |
720 | return sprintf(buf, "%hu\n", bond->params.ad_user_port_key); |
721 | ||
722 | return 0; | |
723 | } | |
d61e4038 | 724 | static DEVICE_ATTR(ad_user_port_key, 0644, |
d22a5fc0 MB |
725 | bonding_show_ad_user_port_key, bonding_sysfs_store_option); |
726 | ||
b76cdba9 | 727 | static struct attribute *per_bond_attrs[] = { |
43cb76d9 GKH |
728 | &dev_attr_slaves.attr, |
729 | &dev_attr_mode.attr, | |
dd957c57 | 730 | &dev_attr_fail_over_mac.attr, |
43cb76d9 | 731 | &dev_attr_arp_validate.attr, |
8599b52e | 732 | &dev_attr_arp_all_targets.attr, |
43cb76d9 GKH |
733 | &dev_attr_arp_interval.attr, |
734 | &dev_attr_arp_ip_target.attr, | |
735 | &dev_attr_downdelay.attr, | |
736 | &dev_attr_updelay.attr, | |
737 | &dev_attr_lacp_rate.attr, | |
fd989c83 | 738 | &dev_attr_ad_select.attr, |
43cb76d9 | 739 | &dev_attr_xmit_hash_policy.attr, |
ad246c99 BH |
740 | &dev_attr_num_grat_arp.attr, |
741 | &dev_attr_num_unsol_na.attr, | |
43cb76d9 GKH |
742 | &dev_attr_miimon.attr, |
743 | &dev_attr_primary.attr, | |
a549952a | 744 | &dev_attr_primary_reselect.attr, |
43cb76d9 GKH |
745 | &dev_attr_use_carrier.attr, |
746 | &dev_attr_active_slave.attr, | |
747 | &dev_attr_mii_status.attr, | |
748 | &dev_attr_ad_aggregator.attr, | |
749 | &dev_attr_ad_num_ports.attr, | |
750 | &dev_attr_ad_actor_key.attr, | |
751 | &dev_attr_ad_partner_key.attr, | |
752 | &dev_attr_ad_partner_mac.attr, | |
bb1d9123 | 753 | &dev_attr_queue_id.attr, |
ebd8e497 | 754 | &dev_attr_all_slaves_active.attr, |
c2952c31 | 755 | &dev_attr_resend_igmp.attr, |
655f8919 | 756 | &dev_attr_min_links.attr, |
7eacd038 | 757 | &dev_attr_lp_interval.attr, |
73958329 | 758 | &dev_attr_packets_per_slave.attr, |
e9f0fb88 | 759 | &dev_attr_tlb_dynamic_lb.attr, |
6791e466 | 760 | &dev_attr_ad_actor_sys_prio.attr, |
74514957 | 761 | &dev_attr_ad_actor_system.attr, |
d22a5fc0 | 762 | &dev_attr_ad_user_port_key.attr, |
b76cdba9 MW |
763 | NULL, |
764 | }; | |
765 | ||
02dbbef0 | 766 | static const struct attribute_group bonding_group = { |
b76cdba9 MW |
767 | .name = "bonding", |
768 | .attrs = per_bond_attrs, | |
769 | }; | |
770 | ||
dc3e5d18 | 771 | /* Initialize sysfs. This sets up the bonding_masters file in |
b76cdba9 MW |
772 | * /sys/class/net. |
773 | */ | |
4c22400a | 774 | int bond_create_sysfs(struct bond_net *bn) |
b76cdba9 | 775 | { |
b8a9787e | 776 | int ret; |
b76cdba9 | 777 | |
4c22400a | 778 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
01718e36 | 779 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
4c22400a | 780 | |
58292cbe TH |
781 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
782 | bn->net); | |
dc3e5d18 | 783 | /* Permit multiple loads of the module by ignoring failures to |
877cbd36 JV |
784 | * create the bonding_masters sysfs file. Bonding devices |
785 | * created by second or subsequent loads of the module will | |
786 | * not be listed in, or controllable by, bonding_masters, but | |
787 | * will have the usual "bonding" sysfs directory. | |
788 | * | |
789 | * This is done to preserve backwards compatibility for | |
790 | * initscripts/sysconfig, which load bonding multiple times to | |
791 | * configure multiple bonding devices. | |
792 | */ | |
793 | if (ret == -EEXIST) { | |
38d2f38b | 794 | /* Is someone being kinky and naming a device bonding_master? */ |
4c22400a | 795 | if (__dev_get_by_name(bn->net, |
38d2f38b | 796 | class_attr_bonding_masters.attr.name)) |
90194264 | 797 | pr_err("network device named %s already exists in sysfs\n", |
38d2f38b | 798 | class_attr_bonding_masters.attr.name); |
130aa61a | 799 | ret = 0; |
877cbd36 | 800 | } |
b76cdba9 MW |
801 | |
802 | return ret; | |
803 | ||
804 | } | |
805 | ||
dc3e5d18 | 806 | /* Remove /sys/class/net/bonding_masters. */ |
4c22400a | 807 | void bond_destroy_sysfs(struct bond_net *bn) |
b76cdba9 | 808 | { |
58292cbe | 809 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
b76cdba9 MW |
810 | } |
811 | ||
dc3e5d18 | 812 | /* Initialize sysfs for each bond. This sets up and registers |
b76cdba9 MW |
813 | * the 'bondctl' directory for each individual bond under /sys/class/net. |
814 | */ | |
6151b3d4 | 815 | void bond_prepare_sysfs_group(struct bonding *bond) |
b76cdba9 | 816 | { |
6151b3d4 | 817 | bond->dev->sysfs_groups[0] = &bonding_group; |
b76cdba9 MW |
818 | } |
819 |