| 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 |
| 15 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
| 16 | * |
| 17 | * The full GNU General Public License is included in this distribution in the |
| 18 | * file called LICENSE. |
| 19 | * |
| 20 | */ |
| 21 | |
| 22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 23 | |
| 24 | #include <linux/kernel.h> |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/device.h> |
| 27 | #include <linux/sched.h> |
| 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> |
| 35 | #include <linux/ctype.h> |
| 36 | #include <linux/inet.h> |
| 37 | #include <linux/rtnetlink.h> |
| 38 | #include <linux/etherdevice.h> |
| 39 | #include <net/net_namespace.h> |
| 40 | #include <net/netns/generic.h> |
| 41 | #include <linux/nsproxy.h> |
| 42 | |
| 43 | #include "bonding.h" |
| 44 | |
| 45 | #define to_dev(obj) container_of(obj, struct device, kobj) |
| 46 | #define to_bond(cd) ((struct bonding *)(netdev_priv(to_net_dev(cd)))) |
| 47 | |
| 48 | /* |
| 49 | * "show" function for the bond_masters attribute. |
| 50 | * The class parameter is ignored. |
| 51 | */ |
| 52 | static ssize_t bonding_show_bonds(struct class *cls, |
| 53 | struct class_attribute *attr, |
| 54 | char *buf) |
| 55 | { |
| 56 | struct bond_net *bn = |
| 57 | container_of(attr, struct bond_net, class_attr_bonding_masters); |
| 58 | int res = 0; |
| 59 | struct bonding *bond; |
| 60 | |
| 61 | rtnl_lock(); |
| 62 | |
| 63 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
| 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; |
| 68 | res += sprintf(buf + res, "++more++ "); |
| 69 | break; |
| 70 | } |
| 71 | res += sprintf(buf + res, "%s ", bond->dev->name); |
| 72 | } |
| 73 | if (res) |
| 74 | buf[res-1] = '\n'; /* eat the leftover space */ |
| 75 | |
| 76 | rtnl_unlock(); |
| 77 | return res; |
| 78 | } |
| 79 | |
| 80 | static struct net_device *bond_get_by_name(struct bond_net *bn, const char *ifname) |
| 81 | { |
| 82 | struct bonding *bond; |
| 83 | |
| 84 | list_for_each_entry(bond, &bn->dev_list, bond_list) { |
| 85 | if (strncmp(bond->dev->name, ifname, IFNAMSIZ) == 0) |
| 86 | return bond->dev; |
| 87 | } |
| 88 | return NULL; |
| 89 | } |
| 90 | |
| 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 | |
| 99 | static ssize_t bonding_store_bonds(struct class *cls, |
| 100 | struct class_attribute *attr, |
| 101 | const char *buffer, size_t count) |
| 102 | { |
| 103 | struct bond_net *bn = |
| 104 | container_of(attr, struct bond_net, class_attr_bonding_masters); |
| 105 | char command[IFNAMSIZ + 1] = {0, }; |
| 106 | char *ifname; |
| 107 | int rv, res = count; |
| 108 | |
| 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] == '+') { |
| 116 | pr_info("%s is being created...\n", ifname); |
| 117 | rv = bond_create(bn->net, ifname); |
| 118 | if (rv) { |
| 119 | if (rv == -EEXIST) |
| 120 | pr_info("%s already exists\n", ifname); |
| 121 | else |
| 122 | pr_info("%s creation failed\n", ifname); |
| 123 | res = rv; |
| 124 | } |
| 125 | } else if (command[0] == '-') { |
| 126 | struct net_device *bond_dev; |
| 127 | |
| 128 | rtnl_lock(); |
| 129 | bond_dev = bond_get_by_name(bn, ifname); |
| 130 | if (bond_dev) { |
| 131 | pr_info("%s is being deleted...\n", ifname); |
| 132 | unregister_netdevice(bond_dev); |
| 133 | } else { |
| 134 | pr_err("unable to delete non-existent %s\n", ifname); |
| 135 | res = -ENODEV; |
| 136 | } |
| 137 | rtnl_unlock(); |
| 138 | } else |
| 139 | goto err_no_cmd; |
| 140 | |
| 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; |
| 145 | |
| 146 | err_no_cmd: |
| 147 | pr_err("no command found in bonding_masters - use +ifname or -ifname\n"); |
| 148 | return -EPERM; |
| 149 | } |
| 150 | |
| 151 | /* class attribute for bond_masters file. This ends up in /sys/class/net */ |
| 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, |
| 159 | }; |
| 160 | |
| 161 | /* |
| 162 | * Show the slaves in the current bond. |
| 163 | */ |
| 164 | static ssize_t bonding_show_slaves(struct device *d, |
| 165 | struct device_attribute *attr, char *buf) |
| 166 | { |
| 167 | struct bonding *bond = to_bond(d); |
| 168 | struct list_head *iter; |
| 169 | struct slave *slave; |
| 170 | int res = 0; |
| 171 | |
| 172 | if (!rtnl_trylock()) |
| 173 | return restart_syscall(); |
| 174 | |
| 175 | bond_for_each_slave(bond, slave, iter) { |
| 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; |
| 180 | res += sprintf(buf + res, "++more++ "); |
| 181 | break; |
| 182 | } |
| 183 | res += sprintf(buf + res, "%s ", slave->dev->name); |
| 184 | } |
| 185 | |
| 186 | rtnl_unlock(); |
| 187 | |
| 188 | if (res) |
| 189 | buf[res-1] = '\n'; /* eat the leftover space */ |
| 190 | |
| 191 | return res; |
| 192 | } |
| 193 | |
| 194 | /* |
| 195 | * Set the slaves in the current bond. |
| 196 | * This is supposed to be only thin wrapper for bond_enslave and bond_release. |
| 197 | * All hard work should be done there. |
| 198 | */ |
| 199 | static ssize_t bonding_store_slaves(struct device *d, |
| 200 | struct device_attribute *attr, |
| 201 | const char *buffer, size_t count) |
| 202 | { |
| 203 | struct bonding *bond = to_bond(d); |
| 204 | int ret; |
| 205 | |
| 206 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_SLAVES, (char *)buffer); |
| 207 | if (!ret) |
| 208 | ret = count; |
| 209 | |
| 210 | return ret; |
| 211 | } |
| 212 | static DEVICE_ATTR(slaves, S_IRUGO | S_IWUSR, bonding_show_slaves, |
| 213 | bonding_store_slaves); |
| 214 | |
| 215 | /* |
| 216 | * Show and set the bonding mode. The bond interface must be down to |
| 217 | * change the mode. |
| 218 | */ |
| 219 | static ssize_t bonding_show_mode(struct device *d, |
| 220 | struct device_attribute *attr, char *buf) |
| 221 | { |
| 222 | struct bonding *bond = to_bond(d); |
| 223 | const struct bond_opt_value *val; |
| 224 | |
| 225 | val = bond_opt_get_val(BOND_OPT_MODE, bond->params.mode); |
| 226 | |
| 227 | return sprintf(buf, "%s %d\n", val->string, bond->params.mode); |
| 228 | } |
| 229 | |
| 230 | static ssize_t bonding_store_mode(struct device *d, |
| 231 | struct device_attribute *attr, |
| 232 | const char *buf, size_t count) |
| 233 | { |
| 234 | struct bonding *bond = to_bond(d); |
| 235 | int ret; |
| 236 | |
| 237 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MODE, (char *)buf); |
| 238 | if (!ret) |
| 239 | ret = count; |
| 240 | |
| 241 | return ret; |
| 242 | } |
| 243 | static DEVICE_ATTR(mode, S_IRUGO | S_IWUSR, |
| 244 | bonding_show_mode, bonding_store_mode); |
| 245 | |
| 246 | /* |
| 247 | * Show and set the bonding transmit hash method. |
| 248 | */ |
| 249 | static ssize_t bonding_show_xmit_hash(struct device *d, |
| 250 | struct device_attribute *attr, |
| 251 | char *buf) |
| 252 | { |
| 253 | struct bonding *bond = to_bond(d); |
| 254 | const struct bond_opt_value *val; |
| 255 | |
| 256 | val = bond_opt_get_val(BOND_OPT_XMIT_HASH, bond->params.xmit_policy); |
| 257 | |
| 258 | return sprintf(buf, "%s %d\n", val->string, bond->params.xmit_policy); |
| 259 | } |
| 260 | |
| 261 | static ssize_t bonding_store_xmit_hash(struct device *d, |
| 262 | struct device_attribute *attr, |
| 263 | const char *buf, size_t count) |
| 264 | { |
| 265 | struct bonding *bond = to_bond(d); |
| 266 | int ret; |
| 267 | |
| 268 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_XMIT_HASH, (char *)buf); |
| 269 | if (!ret) |
| 270 | ret = count; |
| 271 | |
| 272 | return ret; |
| 273 | } |
| 274 | static DEVICE_ATTR(xmit_hash_policy, S_IRUGO | S_IWUSR, |
| 275 | bonding_show_xmit_hash, bonding_store_xmit_hash); |
| 276 | |
| 277 | /* |
| 278 | * Show and set arp_validate. |
| 279 | */ |
| 280 | static ssize_t bonding_show_arp_validate(struct device *d, |
| 281 | struct device_attribute *attr, |
| 282 | char *buf) |
| 283 | { |
| 284 | struct bonding *bond = to_bond(d); |
| 285 | const struct bond_opt_value *val; |
| 286 | |
| 287 | val = bond_opt_get_val(BOND_OPT_ARP_VALIDATE, |
| 288 | bond->params.arp_validate); |
| 289 | |
| 290 | return sprintf(buf, "%s %d\n", val->string, bond->params.arp_validate); |
| 291 | } |
| 292 | |
| 293 | static ssize_t bonding_store_arp_validate(struct device *d, |
| 294 | struct device_attribute *attr, |
| 295 | const char *buf, size_t count) |
| 296 | { |
| 297 | struct bonding *bond = to_bond(d); |
| 298 | int ret; |
| 299 | |
| 300 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_VALIDATE, (char *)buf); |
| 301 | if (!ret) |
| 302 | ret = count; |
| 303 | |
| 304 | return ret; |
| 305 | } |
| 306 | |
| 307 | static DEVICE_ATTR(arp_validate, S_IRUGO | S_IWUSR, bonding_show_arp_validate, |
| 308 | bonding_store_arp_validate); |
| 309 | /* |
| 310 | * Show and set arp_all_targets. |
| 311 | */ |
| 312 | static ssize_t bonding_show_arp_all_targets(struct device *d, |
| 313 | struct device_attribute *attr, |
| 314 | char *buf) |
| 315 | { |
| 316 | struct bonding *bond = to_bond(d); |
| 317 | const struct bond_opt_value *val; |
| 318 | |
| 319 | val = bond_opt_get_val(BOND_OPT_ARP_ALL_TARGETS, |
| 320 | bond->params.arp_all_targets); |
| 321 | return sprintf(buf, "%s %d\n", |
| 322 | val->string, bond->params.arp_all_targets); |
| 323 | } |
| 324 | |
| 325 | static ssize_t bonding_store_arp_all_targets(struct device *d, |
| 326 | struct device_attribute *attr, |
| 327 | const char *buf, size_t count) |
| 328 | { |
| 329 | struct bonding *bond = to_bond(d); |
| 330 | int ret; |
| 331 | |
| 332 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_ALL_TARGETS, (char *)buf); |
| 333 | if (!ret) |
| 334 | ret = count; |
| 335 | |
| 336 | return ret; |
| 337 | } |
| 338 | |
| 339 | static DEVICE_ATTR(arp_all_targets, S_IRUGO | S_IWUSR, |
| 340 | bonding_show_arp_all_targets, bonding_store_arp_all_targets); |
| 341 | |
| 342 | /* |
| 343 | * Show and store fail_over_mac. User only allowed to change the |
| 344 | * value when there are no slaves. |
| 345 | */ |
| 346 | static ssize_t bonding_show_fail_over_mac(struct device *d, |
| 347 | struct device_attribute *attr, |
| 348 | char *buf) |
| 349 | { |
| 350 | struct bonding *bond = to_bond(d); |
| 351 | const struct bond_opt_value *val; |
| 352 | |
| 353 | val = bond_opt_get_val(BOND_OPT_FAIL_OVER_MAC, |
| 354 | bond->params.fail_over_mac); |
| 355 | |
| 356 | return sprintf(buf, "%s %d\n", val->string, bond->params.fail_over_mac); |
| 357 | } |
| 358 | |
| 359 | static ssize_t bonding_store_fail_over_mac(struct device *d, |
| 360 | struct device_attribute *attr, |
| 361 | const char *buf, size_t count) |
| 362 | { |
| 363 | struct bonding *bond = to_bond(d); |
| 364 | int ret; |
| 365 | |
| 366 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_FAIL_OVER_MAC, (char *)buf); |
| 367 | if (!ret) |
| 368 | ret = count; |
| 369 | |
| 370 | return ret; |
| 371 | } |
| 372 | |
| 373 | static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, |
| 374 | bonding_show_fail_over_mac, bonding_store_fail_over_mac); |
| 375 | |
| 376 | /* |
| 377 | * Show and set the arp timer interval. There are two tricky bits |
| 378 | * here. First, if ARP monitoring is activated, then we must disable |
| 379 | * MII monitoring. Second, if the ARP timer isn't running, we must |
| 380 | * start it. |
| 381 | */ |
| 382 | static ssize_t bonding_show_arp_interval(struct device *d, |
| 383 | struct device_attribute *attr, |
| 384 | char *buf) |
| 385 | { |
| 386 | struct bonding *bond = to_bond(d); |
| 387 | |
| 388 | return sprintf(buf, "%d\n", bond->params.arp_interval); |
| 389 | } |
| 390 | |
| 391 | static ssize_t bonding_store_arp_interval(struct device *d, |
| 392 | struct device_attribute *attr, |
| 393 | const char *buf, size_t count) |
| 394 | { |
| 395 | struct bonding *bond = to_bond(d); |
| 396 | int ret; |
| 397 | |
| 398 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_INTERVAL, (char *)buf); |
| 399 | if (!ret) |
| 400 | ret = count; |
| 401 | |
| 402 | return ret; |
| 403 | } |
| 404 | static DEVICE_ATTR(arp_interval, S_IRUGO | S_IWUSR, |
| 405 | bonding_show_arp_interval, bonding_store_arp_interval); |
| 406 | |
| 407 | /* |
| 408 | * Show and set the arp targets. |
| 409 | */ |
| 410 | static ssize_t bonding_show_arp_targets(struct device *d, |
| 411 | struct device_attribute *attr, |
| 412 | char *buf) |
| 413 | { |
| 414 | struct bonding *bond = to_bond(d); |
| 415 | int i, res = 0; |
| 416 | |
| 417 | for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { |
| 418 | if (bond->params.arp_targets[i]) |
| 419 | res += sprintf(buf + res, "%pI4 ", |
| 420 | &bond->params.arp_targets[i]); |
| 421 | } |
| 422 | if (res) |
| 423 | buf[res-1] = '\n'; /* eat the leftover space */ |
| 424 | |
| 425 | return res; |
| 426 | } |
| 427 | |
| 428 | static ssize_t bonding_store_arp_targets(struct device *d, |
| 429 | struct device_attribute *attr, |
| 430 | const char *buf, size_t count) |
| 431 | { |
| 432 | struct bonding *bond = to_bond(d); |
| 433 | int ret; |
| 434 | |
| 435 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ARP_TARGETS, (char *)buf); |
| 436 | if (!ret) |
| 437 | ret = count; |
| 438 | |
| 439 | return ret; |
| 440 | } |
| 441 | static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets); |
| 442 | |
| 443 | /* |
| 444 | * Show and set the up and down delays. These must be multiples of the |
| 445 | * MII monitoring value, and are stored internally as the multiplier. |
| 446 | * Thus, we must translate to MS for the real world. |
| 447 | */ |
| 448 | static ssize_t bonding_show_downdelay(struct device *d, |
| 449 | struct device_attribute *attr, |
| 450 | char *buf) |
| 451 | { |
| 452 | struct bonding *bond = to_bond(d); |
| 453 | |
| 454 | return sprintf(buf, "%d\n", bond->params.downdelay * bond->params.miimon); |
| 455 | } |
| 456 | |
| 457 | static ssize_t bonding_store_downdelay(struct device *d, |
| 458 | struct device_attribute *attr, |
| 459 | const char *buf, size_t count) |
| 460 | { |
| 461 | struct bonding *bond = to_bond(d); |
| 462 | int ret; |
| 463 | |
| 464 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_DOWNDELAY, (char *)buf); |
| 465 | if (!ret) |
| 466 | ret = count; |
| 467 | |
| 468 | return ret; |
| 469 | } |
| 470 | static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR, |
| 471 | bonding_show_downdelay, bonding_store_downdelay); |
| 472 | |
| 473 | static ssize_t bonding_show_updelay(struct device *d, |
| 474 | struct device_attribute *attr, |
| 475 | char *buf) |
| 476 | { |
| 477 | struct bonding *bond = to_bond(d); |
| 478 | |
| 479 | return sprintf(buf, "%d\n", bond->params.updelay * bond->params.miimon); |
| 480 | |
| 481 | } |
| 482 | |
| 483 | static ssize_t bonding_store_updelay(struct device *d, |
| 484 | struct device_attribute *attr, |
| 485 | const char *buf, size_t count) |
| 486 | { |
| 487 | struct bonding *bond = to_bond(d); |
| 488 | int ret; |
| 489 | |
| 490 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_UPDELAY, (char *)buf); |
| 491 | if (!ret) |
| 492 | ret = count; |
| 493 | |
| 494 | return ret; |
| 495 | } |
| 496 | static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR, |
| 497 | bonding_show_updelay, bonding_store_updelay); |
| 498 | |
| 499 | /* |
| 500 | * Show and set the LACP interval. Interface must be down, and the mode |
| 501 | * must be set to 802.3ad mode. |
| 502 | */ |
| 503 | static ssize_t bonding_show_lacp(struct device *d, |
| 504 | struct device_attribute *attr, |
| 505 | char *buf) |
| 506 | { |
| 507 | struct bonding *bond = to_bond(d); |
| 508 | const struct bond_opt_value *val; |
| 509 | |
| 510 | val = bond_opt_get_val(BOND_OPT_LACP_RATE, bond->params.lacp_fast); |
| 511 | |
| 512 | return sprintf(buf, "%s %d\n", val->string, bond->params.lacp_fast); |
| 513 | } |
| 514 | |
| 515 | static ssize_t bonding_store_lacp(struct device *d, |
| 516 | struct device_attribute *attr, |
| 517 | const char *buf, size_t count) |
| 518 | { |
| 519 | struct bonding *bond = to_bond(d); |
| 520 | int ret; |
| 521 | |
| 522 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_LACP_RATE, (char *)buf); |
| 523 | if (!ret) |
| 524 | ret = count; |
| 525 | |
| 526 | return ret; |
| 527 | } |
| 528 | static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, |
| 529 | bonding_show_lacp, bonding_store_lacp); |
| 530 | |
| 531 | static ssize_t bonding_show_min_links(struct device *d, |
| 532 | struct device_attribute *attr, |
| 533 | char *buf) |
| 534 | { |
| 535 | struct bonding *bond = to_bond(d); |
| 536 | |
| 537 | return sprintf(buf, "%u\n", bond->params.min_links); |
| 538 | } |
| 539 | |
| 540 | static ssize_t bonding_store_min_links(struct device *d, |
| 541 | struct device_attribute *attr, |
| 542 | const char *buf, size_t count) |
| 543 | { |
| 544 | struct bonding *bond = to_bond(d); |
| 545 | int ret; |
| 546 | |
| 547 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MINLINKS, (char *)buf); |
| 548 | if (!ret) |
| 549 | ret = count; |
| 550 | |
| 551 | return ret; |
| 552 | } |
| 553 | static DEVICE_ATTR(min_links, S_IRUGO | S_IWUSR, |
| 554 | bonding_show_min_links, bonding_store_min_links); |
| 555 | |
| 556 | static ssize_t bonding_show_ad_select(struct device *d, |
| 557 | struct device_attribute *attr, |
| 558 | char *buf) |
| 559 | { |
| 560 | struct bonding *bond = to_bond(d); |
| 561 | const struct bond_opt_value *val; |
| 562 | |
| 563 | val = bond_opt_get_val(BOND_OPT_AD_SELECT, bond->params.ad_select); |
| 564 | |
| 565 | return sprintf(buf, "%s %d\n", val->string, bond->params.ad_select); |
| 566 | } |
| 567 | |
| 568 | |
| 569 | static ssize_t bonding_store_ad_select(struct device *d, |
| 570 | struct device_attribute *attr, |
| 571 | const char *buf, size_t count) |
| 572 | { |
| 573 | struct bonding *bond = to_bond(d); |
| 574 | int ret; |
| 575 | |
| 576 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_AD_SELECT, (char *)buf); |
| 577 | if (!ret) |
| 578 | ret = count; |
| 579 | |
| 580 | return ret; |
| 581 | } |
| 582 | static DEVICE_ATTR(ad_select, S_IRUGO | S_IWUSR, |
| 583 | bonding_show_ad_select, bonding_store_ad_select); |
| 584 | |
| 585 | /* |
| 586 | * Show and set the number of peer notifications to send after a failover event. |
| 587 | */ |
| 588 | static ssize_t bonding_show_num_peer_notif(struct device *d, |
| 589 | struct device_attribute *attr, |
| 590 | char *buf) |
| 591 | { |
| 592 | struct bonding *bond = to_bond(d); |
| 593 | return sprintf(buf, "%d\n", bond->params.num_peer_notif); |
| 594 | } |
| 595 | |
| 596 | static ssize_t bonding_store_num_peer_notif(struct device *d, |
| 597 | struct device_attribute *attr, |
| 598 | const char *buf, size_t count) |
| 599 | { |
| 600 | struct bonding *bond = to_bond(d); |
| 601 | int ret; |
| 602 | |
| 603 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_NUM_PEER_NOTIF, (char *)buf); |
| 604 | if (!ret) |
| 605 | ret = count; |
| 606 | |
| 607 | return ret; |
| 608 | } |
| 609 | static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, |
| 610 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); |
| 611 | static DEVICE_ATTR(num_unsol_na, S_IRUGO | S_IWUSR, |
| 612 | bonding_show_num_peer_notif, bonding_store_num_peer_notif); |
| 613 | |
| 614 | /* |
| 615 | * Show and set the MII monitor interval. There are two tricky bits |
| 616 | * here. First, if MII monitoring is activated, then we must disable |
| 617 | * ARP monitoring. Second, if the timer isn't running, we must |
| 618 | * start it. |
| 619 | */ |
| 620 | static ssize_t bonding_show_miimon(struct device *d, |
| 621 | struct device_attribute *attr, |
| 622 | char *buf) |
| 623 | { |
| 624 | struct bonding *bond = to_bond(d); |
| 625 | |
| 626 | return sprintf(buf, "%d\n", bond->params.miimon); |
| 627 | } |
| 628 | |
| 629 | static ssize_t bonding_store_miimon(struct device *d, |
| 630 | struct device_attribute *attr, |
| 631 | const char *buf, size_t count) |
| 632 | { |
| 633 | struct bonding *bond = to_bond(d); |
| 634 | int ret; |
| 635 | |
| 636 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_MIIMON, (char *)buf); |
| 637 | if (!ret) |
| 638 | ret = count; |
| 639 | |
| 640 | return ret; |
| 641 | } |
| 642 | static DEVICE_ATTR(miimon, S_IRUGO | S_IWUSR, |
| 643 | bonding_show_miimon, bonding_store_miimon); |
| 644 | |
| 645 | /* |
| 646 | * Show and set the primary slave. The store function is much |
| 647 | * simpler than bonding_store_slaves function because it only needs to |
| 648 | * handle one interface name. |
| 649 | * The bond must be a mode that supports a primary for this be |
| 650 | * set. |
| 651 | */ |
| 652 | static ssize_t bonding_show_primary(struct device *d, |
| 653 | struct device_attribute *attr, |
| 654 | char *buf) |
| 655 | { |
| 656 | int count = 0; |
| 657 | struct bonding *bond = to_bond(d); |
| 658 | |
| 659 | if (bond->primary_slave) |
| 660 | count = sprintf(buf, "%s\n", bond->primary_slave->dev->name); |
| 661 | |
| 662 | return count; |
| 663 | } |
| 664 | |
| 665 | static ssize_t bonding_store_primary(struct device *d, |
| 666 | struct device_attribute *attr, |
| 667 | const char *buf, size_t count) |
| 668 | { |
| 669 | struct bonding *bond = to_bond(d); |
| 670 | int ret; |
| 671 | |
| 672 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PRIMARY, (char *)buf); |
| 673 | if (!ret) |
| 674 | ret = count; |
| 675 | |
| 676 | return ret; |
| 677 | } |
| 678 | static DEVICE_ATTR(primary, S_IRUGO | S_IWUSR, |
| 679 | bonding_show_primary, bonding_store_primary); |
| 680 | |
| 681 | /* |
| 682 | * Show and set the primary_reselect flag. |
| 683 | */ |
| 684 | static ssize_t bonding_show_primary_reselect(struct device *d, |
| 685 | struct device_attribute *attr, |
| 686 | char *buf) |
| 687 | { |
| 688 | struct bonding *bond = to_bond(d); |
| 689 | const struct bond_opt_value *val; |
| 690 | |
| 691 | val = bond_opt_get_val(BOND_OPT_PRIMARY_RESELECT, |
| 692 | bond->params.primary_reselect); |
| 693 | |
| 694 | return sprintf(buf, "%s %d\n", |
| 695 | val->string, bond->params.primary_reselect); |
| 696 | } |
| 697 | |
| 698 | static ssize_t bonding_store_primary_reselect(struct device *d, |
| 699 | struct device_attribute *attr, |
| 700 | const char *buf, size_t count) |
| 701 | { |
| 702 | struct bonding *bond = to_bond(d); |
| 703 | int ret; |
| 704 | |
| 705 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PRIMARY_RESELECT, |
| 706 | (char *)buf); |
| 707 | if (!ret) |
| 708 | ret = count; |
| 709 | |
| 710 | return ret; |
| 711 | } |
| 712 | static DEVICE_ATTR(primary_reselect, S_IRUGO | S_IWUSR, |
| 713 | bonding_show_primary_reselect, |
| 714 | bonding_store_primary_reselect); |
| 715 | |
| 716 | /* |
| 717 | * Show and set the use_carrier flag. |
| 718 | */ |
| 719 | static ssize_t bonding_show_carrier(struct device *d, |
| 720 | struct device_attribute *attr, |
| 721 | char *buf) |
| 722 | { |
| 723 | struct bonding *bond = to_bond(d); |
| 724 | |
| 725 | return sprintf(buf, "%d\n", bond->params.use_carrier); |
| 726 | } |
| 727 | |
| 728 | static ssize_t bonding_store_carrier(struct device *d, |
| 729 | struct device_attribute *attr, |
| 730 | const char *buf, size_t count) |
| 731 | { |
| 732 | struct bonding *bond = to_bond(d); |
| 733 | int ret; |
| 734 | |
| 735 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_USE_CARRIER, (char *)buf); |
| 736 | if (!ret) |
| 737 | ret = count; |
| 738 | |
| 739 | return ret; |
| 740 | } |
| 741 | static DEVICE_ATTR(use_carrier, S_IRUGO | S_IWUSR, |
| 742 | bonding_show_carrier, bonding_store_carrier); |
| 743 | |
| 744 | |
| 745 | /* |
| 746 | * Show and set currently active_slave. |
| 747 | */ |
| 748 | static ssize_t bonding_show_active_slave(struct device *d, |
| 749 | struct device_attribute *attr, |
| 750 | char *buf) |
| 751 | { |
| 752 | struct bonding *bond = to_bond(d); |
| 753 | struct net_device *slave_dev; |
| 754 | int count = 0; |
| 755 | |
| 756 | rcu_read_lock(); |
| 757 | slave_dev = bond_option_active_slave_get_rcu(bond); |
| 758 | if (slave_dev) |
| 759 | count = sprintf(buf, "%s\n", slave_dev->name); |
| 760 | rcu_read_unlock(); |
| 761 | |
| 762 | return count; |
| 763 | } |
| 764 | |
| 765 | static ssize_t bonding_store_active_slave(struct device *d, |
| 766 | struct device_attribute *attr, |
| 767 | const char *buf, size_t count) |
| 768 | { |
| 769 | struct bonding *bond = to_bond(d); |
| 770 | int ret; |
| 771 | |
| 772 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ACTIVE_SLAVE, (char *)buf); |
| 773 | if (!ret) |
| 774 | ret = count; |
| 775 | |
| 776 | return ret; |
| 777 | } |
| 778 | static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR, |
| 779 | bonding_show_active_slave, bonding_store_active_slave); |
| 780 | |
| 781 | |
| 782 | /* |
| 783 | * Show link status of the bond interface. |
| 784 | */ |
| 785 | static ssize_t bonding_show_mii_status(struct device *d, |
| 786 | struct device_attribute *attr, |
| 787 | char *buf) |
| 788 | { |
| 789 | struct bonding *bond = to_bond(d); |
| 790 | |
| 791 | return sprintf(buf, "%s\n", bond->curr_active_slave ? "up" : "down"); |
| 792 | } |
| 793 | static DEVICE_ATTR(mii_status, S_IRUGO, bonding_show_mii_status, NULL); |
| 794 | |
| 795 | /* |
| 796 | * Show current 802.3ad aggregator ID. |
| 797 | */ |
| 798 | static ssize_t bonding_show_ad_aggregator(struct device *d, |
| 799 | struct device_attribute *attr, |
| 800 | char *buf) |
| 801 | { |
| 802 | int count = 0; |
| 803 | struct bonding *bond = to_bond(d); |
| 804 | |
| 805 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 806 | struct ad_info ad_info; |
| 807 | count = sprintf(buf, "%d\n", |
| 808 | bond_3ad_get_active_agg_info(bond, &ad_info) |
| 809 | ? 0 : ad_info.aggregator_id); |
| 810 | } |
| 811 | |
| 812 | return count; |
| 813 | } |
| 814 | static DEVICE_ATTR(ad_aggregator, S_IRUGO, bonding_show_ad_aggregator, NULL); |
| 815 | |
| 816 | |
| 817 | /* |
| 818 | * Show number of active 802.3ad ports. |
| 819 | */ |
| 820 | static ssize_t bonding_show_ad_num_ports(struct device *d, |
| 821 | struct device_attribute *attr, |
| 822 | char *buf) |
| 823 | { |
| 824 | int count = 0; |
| 825 | struct bonding *bond = to_bond(d); |
| 826 | |
| 827 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 828 | struct ad_info ad_info; |
| 829 | count = sprintf(buf, "%d\n", |
| 830 | bond_3ad_get_active_agg_info(bond, &ad_info) |
| 831 | ? 0 : ad_info.ports); |
| 832 | } |
| 833 | |
| 834 | return count; |
| 835 | } |
| 836 | static DEVICE_ATTR(ad_num_ports, S_IRUGO, bonding_show_ad_num_ports, NULL); |
| 837 | |
| 838 | |
| 839 | /* |
| 840 | * Show current 802.3ad actor key. |
| 841 | */ |
| 842 | static ssize_t bonding_show_ad_actor_key(struct device *d, |
| 843 | struct device_attribute *attr, |
| 844 | char *buf) |
| 845 | { |
| 846 | int count = 0; |
| 847 | struct bonding *bond = to_bond(d); |
| 848 | |
| 849 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 850 | struct ad_info ad_info; |
| 851 | count = sprintf(buf, "%d\n", |
| 852 | bond_3ad_get_active_agg_info(bond, &ad_info) |
| 853 | ? 0 : ad_info.actor_key); |
| 854 | } |
| 855 | |
| 856 | return count; |
| 857 | } |
| 858 | static DEVICE_ATTR(ad_actor_key, S_IRUGO, bonding_show_ad_actor_key, NULL); |
| 859 | |
| 860 | |
| 861 | /* |
| 862 | * Show current 802.3ad partner key. |
| 863 | */ |
| 864 | static ssize_t bonding_show_ad_partner_key(struct device *d, |
| 865 | struct device_attribute *attr, |
| 866 | char *buf) |
| 867 | { |
| 868 | int count = 0; |
| 869 | struct bonding *bond = to_bond(d); |
| 870 | |
| 871 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 872 | struct ad_info ad_info; |
| 873 | count = sprintf(buf, "%d\n", |
| 874 | bond_3ad_get_active_agg_info(bond, &ad_info) |
| 875 | ? 0 : ad_info.partner_key); |
| 876 | } |
| 877 | |
| 878 | return count; |
| 879 | } |
| 880 | static DEVICE_ATTR(ad_partner_key, S_IRUGO, bonding_show_ad_partner_key, NULL); |
| 881 | |
| 882 | |
| 883 | /* |
| 884 | * Show current 802.3ad partner mac. |
| 885 | */ |
| 886 | static ssize_t bonding_show_ad_partner_mac(struct device *d, |
| 887 | struct device_attribute *attr, |
| 888 | char *buf) |
| 889 | { |
| 890 | int count = 0; |
| 891 | struct bonding *bond = to_bond(d); |
| 892 | |
| 893 | if (bond->params.mode == BOND_MODE_8023AD) { |
| 894 | struct ad_info ad_info; |
| 895 | if (!bond_3ad_get_active_agg_info(bond, &ad_info)) |
| 896 | count = sprintf(buf, "%pM\n", ad_info.partner_system); |
| 897 | } |
| 898 | |
| 899 | return count; |
| 900 | } |
| 901 | static DEVICE_ATTR(ad_partner_mac, S_IRUGO, bonding_show_ad_partner_mac, NULL); |
| 902 | |
| 903 | /* |
| 904 | * Show the queue_ids of the slaves in the current bond. |
| 905 | */ |
| 906 | static ssize_t bonding_show_queue_id(struct device *d, |
| 907 | struct device_attribute *attr, |
| 908 | char *buf) |
| 909 | { |
| 910 | struct bonding *bond = to_bond(d); |
| 911 | struct list_head *iter; |
| 912 | struct slave *slave; |
| 913 | int res = 0; |
| 914 | |
| 915 | if (!rtnl_trylock()) |
| 916 | return restart_syscall(); |
| 917 | |
| 918 | bond_for_each_slave(bond, slave, iter) { |
| 919 | if (res > (PAGE_SIZE - IFNAMSIZ - 6)) { |
| 920 | /* not enough space for another interface_name:queue_id pair */ |
| 921 | if ((PAGE_SIZE - res) > 10) |
| 922 | res = PAGE_SIZE - 10; |
| 923 | res += sprintf(buf + res, "++more++ "); |
| 924 | break; |
| 925 | } |
| 926 | res += sprintf(buf + res, "%s:%d ", |
| 927 | slave->dev->name, slave->queue_id); |
| 928 | } |
| 929 | if (res) |
| 930 | buf[res-1] = '\n'; /* eat the leftover space */ |
| 931 | |
| 932 | rtnl_unlock(); |
| 933 | |
| 934 | return res; |
| 935 | } |
| 936 | |
| 937 | /* |
| 938 | * Set the queue_ids of the slaves in the current bond. The bond |
| 939 | * interface must be enslaved for this to work. |
| 940 | */ |
| 941 | static ssize_t bonding_store_queue_id(struct device *d, |
| 942 | struct device_attribute *attr, |
| 943 | const char *buffer, size_t count) |
| 944 | { |
| 945 | struct bonding *bond = to_bond(d); |
| 946 | int ret; |
| 947 | |
| 948 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_QUEUE_ID, (char *)buffer); |
| 949 | if (!ret) |
| 950 | ret = count; |
| 951 | |
| 952 | return ret; |
| 953 | } |
| 954 | static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id, |
| 955 | bonding_store_queue_id); |
| 956 | |
| 957 | |
| 958 | /* |
| 959 | * Show and set the all_slaves_active flag. |
| 960 | */ |
| 961 | static ssize_t bonding_show_slaves_active(struct device *d, |
| 962 | struct device_attribute *attr, |
| 963 | char *buf) |
| 964 | { |
| 965 | struct bonding *bond = to_bond(d); |
| 966 | |
| 967 | return sprintf(buf, "%d\n", bond->params.all_slaves_active); |
| 968 | } |
| 969 | |
| 970 | static ssize_t bonding_store_slaves_active(struct device *d, |
| 971 | struct device_attribute *attr, |
| 972 | const char *buf, size_t count) |
| 973 | { |
| 974 | struct bonding *bond = to_bond(d); |
| 975 | int ret; |
| 976 | |
| 977 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_ALL_SLAVES_ACTIVE, |
| 978 | (char *)buf); |
| 979 | if (!ret) |
| 980 | ret = count; |
| 981 | |
| 982 | return ret; |
| 983 | } |
| 984 | static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, |
| 985 | bonding_show_slaves_active, bonding_store_slaves_active); |
| 986 | |
| 987 | /* |
| 988 | * Show and set the number of IGMP membership reports to send on link failure |
| 989 | */ |
| 990 | static ssize_t bonding_show_resend_igmp(struct device *d, |
| 991 | struct device_attribute *attr, |
| 992 | char *buf) |
| 993 | { |
| 994 | struct bonding *bond = to_bond(d); |
| 995 | |
| 996 | return sprintf(buf, "%d\n", bond->params.resend_igmp); |
| 997 | } |
| 998 | |
| 999 | static ssize_t bonding_store_resend_igmp(struct device *d, |
| 1000 | struct device_attribute *attr, |
| 1001 | const char *buf, size_t count) |
| 1002 | { |
| 1003 | struct bonding *bond = to_bond(d); |
| 1004 | int ret; |
| 1005 | |
| 1006 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_RESEND_IGMP, (char *)buf); |
| 1007 | if (!ret) |
| 1008 | ret = count; |
| 1009 | |
| 1010 | return ret; |
| 1011 | } |
| 1012 | |
| 1013 | static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, |
| 1014 | bonding_show_resend_igmp, bonding_store_resend_igmp); |
| 1015 | |
| 1016 | |
| 1017 | static ssize_t bonding_show_lp_interval(struct device *d, |
| 1018 | struct device_attribute *attr, |
| 1019 | char *buf) |
| 1020 | { |
| 1021 | struct bonding *bond = to_bond(d); |
| 1022 | return sprintf(buf, "%d\n", bond->params.lp_interval); |
| 1023 | } |
| 1024 | |
| 1025 | static ssize_t bonding_store_lp_interval(struct device *d, |
| 1026 | struct device_attribute *attr, |
| 1027 | const char *buf, size_t count) |
| 1028 | { |
| 1029 | struct bonding *bond = to_bond(d); |
| 1030 | int ret; |
| 1031 | |
| 1032 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_LP_INTERVAL, (char *)buf); |
| 1033 | if (!ret) |
| 1034 | ret = count; |
| 1035 | |
| 1036 | return ret; |
| 1037 | } |
| 1038 | |
| 1039 | static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR, |
| 1040 | bonding_show_lp_interval, bonding_store_lp_interval); |
| 1041 | |
| 1042 | static ssize_t bonding_show_packets_per_slave(struct device *d, |
| 1043 | struct device_attribute *attr, |
| 1044 | char *buf) |
| 1045 | { |
| 1046 | struct bonding *bond = to_bond(d); |
| 1047 | unsigned int packets_per_slave = bond->params.packets_per_slave; |
| 1048 | return sprintf(buf, "%u\n", packets_per_slave); |
| 1049 | } |
| 1050 | |
| 1051 | static ssize_t bonding_store_packets_per_slave(struct device *d, |
| 1052 | struct device_attribute *attr, |
| 1053 | const char *buf, size_t count) |
| 1054 | { |
| 1055 | struct bonding *bond = to_bond(d); |
| 1056 | int ret; |
| 1057 | |
| 1058 | ret = bond_opt_tryset_rtnl(bond, BOND_OPT_PACKETS_PER_SLAVE, |
| 1059 | (char *)buf); |
| 1060 | if (!ret) |
| 1061 | ret = count; |
| 1062 | |
| 1063 | return ret; |
| 1064 | } |
| 1065 | |
| 1066 | static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR, |
| 1067 | bonding_show_packets_per_slave, |
| 1068 | bonding_store_packets_per_slave); |
| 1069 | |
| 1070 | static struct attribute *per_bond_attrs[] = { |
| 1071 | &dev_attr_slaves.attr, |
| 1072 | &dev_attr_mode.attr, |
| 1073 | &dev_attr_fail_over_mac.attr, |
| 1074 | &dev_attr_arp_validate.attr, |
| 1075 | &dev_attr_arp_all_targets.attr, |
| 1076 | &dev_attr_arp_interval.attr, |
| 1077 | &dev_attr_arp_ip_target.attr, |
| 1078 | &dev_attr_downdelay.attr, |
| 1079 | &dev_attr_updelay.attr, |
| 1080 | &dev_attr_lacp_rate.attr, |
| 1081 | &dev_attr_ad_select.attr, |
| 1082 | &dev_attr_xmit_hash_policy.attr, |
| 1083 | &dev_attr_num_grat_arp.attr, |
| 1084 | &dev_attr_num_unsol_na.attr, |
| 1085 | &dev_attr_miimon.attr, |
| 1086 | &dev_attr_primary.attr, |
| 1087 | &dev_attr_primary_reselect.attr, |
| 1088 | &dev_attr_use_carrier.attr, |
| 1089 | &dev_attr_active_slave.attr, |
| 1090 | &dev_attr_mii_status.attr, |
| 1091 | &dev_attr_ad_aggregator.attr, |
| 1092 | &dev_attr_ad_num_ports.attr, |
| 1093 | &dev_attr_ad_actor_key.attr, |
| 1094 | &dev_attr_ad_partner_key.attr, |
| 1095 | &dev_attr_ad_partner_mac.attr, |
| 1096 | &dev_attr_queue_id.attr, |
| 1097 | &dev_attr_all_slaves_active.attr, |
| 1098 | &dev_attr_resend_igmp.attr, |
| 1099 | &dev_attr_min_links.attr, |
| 1100 | &dev_attr_lp_interval.attr, |
| 1101 | &dev_attr_packets_per_slave.attr, |
| 1102 | NULL, |
| 1103 | }; |
| 1104 | |
| 1105 | static struct attribute_group bonding_group = { |
| 1106 | .name = "bonding", |
| 1107 | .attrs = per_bond_attrs, |
| 1108 | }; |
| 1109 | |
| 1110 | /* |
| 1111 | * Initialize sysfs. This sets up the bonding_masters file in |
| 1112 | * /sys/class/net. |
| 1113 | */ |
| 1114 | int bond_create_sysfs(struct bond_net *bn) |
| 1115 | { |
| 1116 | int ret; |
| 1117 | |
| 1118 | bn->class_attr_bonding_masters = class_attr_bonding_masters; |
| 1119 | sysfs_attr_init(&bn->class_attr_bonding_masters.attr); |
| 1120 | |
| 1121 | ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters, |
| 1122 | bn->net); |
| 1123 | /* |
| 1124 | * Permit multiple loads of the module by ignoring failures to |
| 1125 | * create the bonding_masters sysfs file. Bonding devices |
| 1126 | * created by second or subsequent loads of the module will |
| 1127 | * not be listed in, or controllable by, bonding_masters, but |
| 1128 | * will have the usual "bonding" sysfs directory. |
| 1129 | * |
| 1130 | * This is done to preserve backwards compatibility for |
| 1131 | * initscripts/sysconfig, which load bonding multiple times to |
| 1132 | * configure multiple bonding devices. |
| 1133 | */ |
| 1134 | if (ret == -EEXIST) { |
| 1135 | /* Is someone being kinky and naming a device bonding_master? */ |
| 1136 | if (__dev_get_by_name(bn->net, |
| 1137 | class_attr_bonding_masters.attr.name)) |
| 1138 | pr_err("network device named %s already exists in sysfs\n", |
| 1139 | class_attr_bonding_masters.attr.name); |
| 1140 | ret = 0; |
| 1141 | } |
| 1142 | |
| 1143 | return ret; |
| 1144 | |
| 1145 | } |
| 1146 | |
| 1147 | /* |
| 1148 | * Remove /sys/class/net/bonding_masters. |
| 1149 | */ |
| 1150 | void bond_destroy_sysfs(struct bond_net *bn) |
| 1151 | { |
| 1152 | netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net); |
| 1153 | } |
| 1154 | |
| 1155 | /* |
| 1156 | * Initialize sysfs for each bond. This sets up and registers |
| 1157 | * the 'bondctl' directory for each individual bond under /sys/class/net. |
| 1158 | */ |
| 1159 | void bond_prepare_sysfs_group(struct bonding *bond) |
| 1160 | { |
| 1161 | bond->dev->sysfs_groups[0] = &bonding_group; |
| 1162 | } |
| 1163 | |