1/* 2 * drivers/net/bond/bond_netlink.c - Netlink interface for bonding 3 * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us> 4 * Copyright (c) 2013 Scott Feldman <sfeldma@cumulusnetworks.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 12#include <linux/module.h> 13#include <linux/errno.h> 14#include <linux/netdevice.h> 15#include <linux/etherdevice.h> 16#include <linux/if_link.h> 17#include <linux/if_ether.h> 18#include <net/netlink.h> 19#include <net/rtnetlink.h> 20#include <net/bonding.h> 21 22static size_t bond_get_slave_size(const struct net_device *bond_dev, 23 const struct net_device *slave_dev) 24{ 25 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_STATE */ 26 nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_MII_STATUS */ 27 nla_total_size(sizeof(u32)) + /* IFLA_BOND_SLAVE_LINK_FAILURE_COUNT */ 28 nla_total_size(MAX_ADDR_LEN) + /* IFLA_BOND_SLAVE_PERM_HWADDR */ 29 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_QUEUE_ID */ 30 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_AGGREGATOR_ID */ 31 nla_total_size(sizeof(u8)) + /* IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE */ 32 nla_total_size(sizeof(u16)) + /* IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE */ 33 0; 34} 35 36static int bond_fill_slave_info(struct sk_buff *skb, 37 const struct net_device *bond_dev, 38 const struct net_device *slave_dev) 39{ 40 struct slave *slave = bond_slave_get_rtnl(slave_dev); 41 42 if (nla_put_u8(skb, IFLA_BOND_SLAVE_STATE, bond_slave_state(slave))) 43 goto nla_put_failure; 44 45 if (nla_put_u8(skb, IFLA_BOND_SLAVE_MII_STATUS, slave->link)) 46 goto nla_put_failure; 47 48 if (nla_put_u32(skb, IFLA_BOND_SLAVE_LINK_FAILURE_COUNT, 49 slave->link_failure_count)) 50 goto nla_put_failure; 51 52 if (nla_put(skb, IFLA_BOND_SLAVE_PERM_HWADDR, 53 slave_dev->addr_len, slave->perm_hwaddr)) 54 goto nla_put_failure; 55 56 if (nla_put_u16(skb, IFLA_BOND_SLAVE_QUEUE_ID, slave->queue_id)) 57 goto nla_put_failure; 58 59 if (BOND_MODE(slave->bond) == BOND_MODE_8023AD) { 60 const struct aggregator *agg; 61 const struct port *ad_port; 62 63 ad_port = &SLAVE_AD_INFO(slave)->port; 64 agg = SLAVE_AD_INFO(slave)->port.aggregator; 65 if (agg) { 66 if (nla_put_u16(skb, IFLA_BOND_SLAVE_AD_AGGREGATOR_ID, 67 agg->aggregator_identifier)) 68 goto nla_put_failure; 69 if (nla_put_u8(skb, 70 IFLA_BOND_SLAVE_AD_ACTOR_OPER_PORT_STATE, 71 ad_port->actor_oper_port_state)) 72 goto nla_put_failure; 73 if (nla_put_u16(skb, 74 IFLA_BOND_SLAVE_AD_PARTNER_OPER_PORT_STATE, 75 ad_port->partner_oper.port_state)) 76 goto nla_put_failure; 77 } 78 } 79 80 return 0; 81 82nla_put_failure: 83 return -EMSGSIZE; 84} 85 86static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = { 87 [IFLA_BOND_MODE] = { .type = NLA_U8 }, 88 [IFLA_BOND_ACTIVE_SLAVE] = { .type = NLA_U32 }, 89 [IFLA_BOND_MIIMON] = { .type = NLA_U32 }, 90 [IFLA_BOND_UPDELAY] = { .type = NLA_U32 }, 91 [IFLA_BOND_DOWNDELAY] = { .type = NLA_U32 }, 92 [IFLA_BOND_USE_CARRIER] = { .type = NLA_U8 }, 93 [IFLA_BOND_ARP_INTERVAL] = { .type = NLA_U32 }, 94 [IFLA_BOND_ARP_IP_TARGET] = { .type = NLA_NESTED }, 95 [IFLA_BOND_ARP_VALIDATE] = { .type = NLA_U32 }, 96 [IFLA_BOND_ARP_ALL_TARGETS] = { .type = NLA_U32 }, 97 [IFLA_BOND_PRIMARY] = { .type = NLA_U32 }, 98 [IFLA_BOND_PRIMARY_RESELECT] = { .type = NLA_U8 }, 99 [IFLA_BOND_FAIL_OVER_MAC] = { .type = NLA_U8 }, 100 [IFLA_BOND_XMIT_HASH_POLICY] = { .type = NLA_U8 }, 101 [IFLA_BOND_RESEND_IGMP] = { .type = NLA_U32 }, 102 [IFLA_BOND_NUM_PEER_NOTIF] = { .type = NLA_U8 }, 103 [IFLA_BOND_ALL_SLAVES_ACTIVE] = { .type = NLA_U8 }, 104 [IFLA_BOND_MIN_LINKS] = { .type = NLA_U32 }, 105 [IFLA_BOND_LP_INTERVAL] = { .type = NLA_U32 }, 106 [IFLA_BOND_PACKETS_PER_SLAVE] = { .type = NLA_U32 }, 107 [IFLA_BOND_AD_LACP_RATE] = { .type = NLA_U8 }, 108 [IFLA_BOND_AD_SELECT] = { .type = NLA_U8 }, 109 [IFLA_BOND_AD_INFO] = { .type = NLA_NESTED }, 110 [IFLA_BOND_AD_ACTOR_SYS_PRIO] = { .type = NLA_U16 }, 111 [IFLA_BOND_AD_USER_PORT_KEY] = { .type = NLA_U16 }, 112 [IFLA_BOND_AD_ACTOR_SYSTEM] = { .type = NLA_BINARY, 113 .len = ETH_ALEN }, 114 [IFLA_BOND_TLB_DYNAMIC_LB] = { .type = NLA_U8 }, 115}; 116 117static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = { 118 [IFLA_BOND_SLAVE_QUEUE_ID] = { .type = NLA_U16 }, 119}; 120 121static int bond_validate(struct nlattr *tb[], struct nlattr *data[]) 122{ 123 if (tb[IFLA_ADDRESS]) { 124 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 125 return -EINVAL; 126 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 127 return -EADDRNOTAVAIL; 128 } 129 return 0; 130} 131 132static int bond_slave_changelink(struct net_device *bond_dev, 133 struct net_device *slave_dev, 134 struct nlattr *tb[], struct nlattr *data[]) 135{ 136 struct bonding *bond = netdev_priv(bond_dev); 137 struct bond_opt_value newval; 138 int err; 139 140 if (!data) 141 return 0; 142 143 if (data[IFLA_BOND_SLAVE_QUEUE_ID]) { 144 u16 queue_id = nla_get_u16(data[IFLA_BOND_SLAVE_QUEUE_ID]); 145 char queue_id_str[IFNAMSIZ + 7]; 146 147 /* queue_id option setting expects slave_name:queue_id */ 148 snprintf(queue_id_str, sizeof(queue_id_str), "%s:%u\n", 149 slave_dev->name, queue_id); 150 bond_opt_initstr(&newval, queue_id_str); 151 err = __bond_opt_set(bond, BOND_OPT_QUEUE_ID, &newval); 152 if (err) 153 return err; 154 } 155 156 return 0; 157} 158 159static int bond_changelink(struct net_device *bond_dev, 160 struct nlattr *tb[], struct nlattr *data[]) 161{ 162 struct bonding *bond = netdev_priv(bond_dev); 163 struct bond_opt_value newval; 164 int miimon = 0; 165 int err; 166 167 if (!data) 168 return 0; 169 170 if (data[IFLA_BOND_MODE]) { 171 int mode = nla_get_u8(data[IFLA_BOND_MODE]); 172 173 bond_opt_initval(&newval, mode); 174 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval); 175 if (err) 176 return err; 177 } 178 if (data[IFLA_BOND_ACTIVE_SLAVE]) { 179 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]); 180 struct net_device *slave_dev; 181 char *active_slave = ""; 182 183 if (ifindex != 0) { 184 slave_dev = __dev_get_by_index(dev_net(bond_dev), 185 ifindex); 186 if (!slave_dev) 187 return -ENODEV; 188 active_slave = slave_dev->name; 189 } 190 bond_opt_initstr(&newval, active_slave); 191 err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval); 192 if (err) 193 return err; 194 } 195 if (data[IFLA_BOND_MIIMON]) { 196 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]); 197 198 bond_opt_initval(&newval, miimon); 199 err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval); 200 if (err) 201 return err; 202 } 203 if (data[IFLA_BOND_UPDELAY]) { 204 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]); 205 206 bond_opt_initval(&newval, updelay); 207 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval); 208 if (err) 209 return err; 210 } 211 if (data[IFLA_BOND_DOWNDELAY]) { 212 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]); 213 214 bond_opt_initval(&newval, downdelay); 215 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval); 216 if (err) 217 return err; 218 } 219 if (data[IFLA_BOND_USE_CARRIER]) { 220 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]); 221 222 bond_opt_initval(&newval, use_carrier); 223 err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval); 224 if (err) 225 return err; 226 } 227 if (data[IFLA_BOND_ARP_INTERVAL]) { 228 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]); 229 230 if (arp_interval && miimon) { 231 netdev_err(bond->dev, "ARP monitoring cannot be used with MII monitoring\n"); 232 return -EINVAL; 233 } 234 235 bond_opt_initval(&newval, arp_interval); 236 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval); 237 if (err) 238 return err; 239 } 240 if (data[IFLA_BOND_ARP_IP_TARGET]) { 241 struct nlattr *attr; 242 int i = 0, rem; 243 244 bond_option_arp_ip_targets_clear(bond); 245 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) { 246 __be32 target; 247 248 if (nla_len(attr) < sizeof(target)) 249 return -EINVAL; 250 251 target = nla_get_be32(attr); 252 253 bond_opt_initval(&newval, (__force u64)target); 254 err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS, 255 &newval); 256 if (err) 257 break; 258 i++; 259 } 260 if (i == 0 && bond->params.arp_interval) 261 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n"); 262 if (err) 263 return err; 264 } 265 if (data[IFLA_BOND_ARP_VALIDATE]) { 266 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]); 267 268 if (arp_validate && miimon) { 269 netdev_err(bond->dev, "ARP validating cannot be used with MII monitoring\n"); 270 return -EINVAL; 271 } 272 273 bond_opt_initval(&newval, arp_validate); 274 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval); 275 if (err) 276 return err; 277 } 278 if (data[IFLA_BOND_ARP_ALL_TARGETS]) { 279 int arp_all_targets = 280 nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]); 281 282 bond_opt_initval(&newval, arp_all_targets); 283 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval); 284 if (err) 285 return err; 286 } 287 if (data[IFLA_BOND_PRIMARY]) { 288 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]); 289 struct net_device *dev; 290 char *primary = ""; 291 292 dev = __dev_get_by_index(dev_net(bond_dev), ifindex); 293 if (dev) 294 primary = dev->name; 295 296 bond_opt_initstr(&newval, primary); 297 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval); 298 if (err) 299 return err; 300 } 301 if (data[IFLA_BOND_PRIMARY_RESELECT]) { 302 int primary_reselect = 303 nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]); 304 305 bond_opt_initval(&newval, primary_reselect); 306 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval); 307 if (err) 308 return err; 309 } 310 if (data[IFLA_BOND_FAIL_OVER_MAC]) { 311 int fail_over_mac = 312 nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]); 313 314 bond_opt_initval(&newval, fail_over_mac); 315 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval); 316 if (err) 317 return err; 318 } 319 if (data[IFLA_BOND_XMIT_HASH_POLICY]) { 320 int xmit_hash_policy = 321 nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]); 322 323 bond_opt_initval(&newval, xmit_hash_policy); 324 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval); 325 if (err) 326 return err; 327 } 328 if (data[IFLA_BOND_RESEND_IGMP]) { 329 int resend_igmp = 330 nla_get_u32(data[IFLA_BOND_RESEND_IGMP]); 331 332 bond_opt_initval(&newval, resend_igmp); 333 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval); 334 if (err) 335 return err; 336 } 337 if (data[IFLA_BOND_NUM_PEER_NOTIF]) { 338 int num_peer_notif = 339 nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]); 340 341 bond_opt_initval(&newval, num_peer_notif); 342 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval); 343 if (err) 344 return err; 345 } 346 if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) { 347 int all_slaves_active = 348 nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]); 349 350 bond_opt_initval(&newval, all_slaves_active); 351 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval); 352 if (err) 353 return err; 354 } 355 if (data[IFLA_BOND_MIN_LINKS]) { 356 int min_links = 357 nla_get_u32(data[IFLA_BOND_MIN_LINKS]); 358 359 bond_opt_initval(&newval, min_links); 360 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval); 361 if (err) 362 return err; 363 } 364 if (data[IFLA_BOND_LP_INTERVAL]) { 365 int lp_interval = 366 nla_get_u32(data[IFLA_BOND_LP_INTERVAL]); 367 368 bond_opt_initval(&newval, lp_interval); 369 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval); 370 if (err) 371 return err; 372 } 373 if (data[IFLA_BOND_PACKETS_PER_SLAVE]) { 374 int packets_per_slave = 375 nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]); 376 377 bond_opt_initval(&newval, packets_per_slave); 378 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval); 379 if (err) 380 return err; 381 } 382 if (data[IFLA_BOND_AD_LACP_RATE]) { 383 int lacp_rate = 384 nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]); 385 386 bond_opt_initval(&newval, lacp_rate); 387 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval); 388 if (err) 389 return err; 390 } 391 if (data[IFLA_BOND_AD_SELECT]) { 392 int ad_select = 393 nla_get_u8(data[IFLA_BOND_AD_SELECT]); 394 395 bond_opt_initval(&newval, ad_select); 396 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval); 397 if (err) 398 return err; 399 } 400 if (data[IFLA_BOND_AD_ACTOR_SYS_PRIO]) { 401 int actor_sys_prio = 402 nla_get_u16(data[IFLA_BOND_AD_ACTOR_SYS_PRIO]); 403 404 bond_opt_initval(&newval, actor_sys_prio); 405 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYS_PRIO, &newval); 406 if (err) 407 return err; 408 } 409 if (data[IFLA_BOND_AD_USER_PORT_KEY]) { 410 int port_key = 411 nla_get_u16(data[IFLA_BOND_AD_USER_PORT_KEY]); 412 413 bond_opt_initval(&newval, port_key); 414 err = __bond_opt_set(bond, BOND_OPT_AD_USER_PORT_KEY, &newval); 415 if (err) 416 return err; 417 } 418 if (data[IFLA_BOND_AD_ACTOR_SYSTEM]) { 419 if (nla_len(data[IFLA_BOND_AD_ACTOR_SYSTEM]) != ETH_ALEN) 420 return -EINVAL; 421 422 bond_opt_initval(&newval, 423 nla_get_be64(data[IFLA_BOND_AD_ACTOR_SYSTEM])); 424 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYSTEM, &newval); 425 if (err) 426 return err; 427 } 428 if (data[IFLA_BOND_TLB_DYNAMIC_LB]) { 429 int dynamic_lb = nla_get_u8(data[IFLA_BOND_TLB_DYNAMIC_LB]); 430 431 bond_opt_initval(&newval, dynamic_lb); 432 err = __bond_opt_set(bond, BOND_OPT_TLB_DYNAMIC_LB, &newval); 433 if (err) 434 return err; 435 } 436 437 return 0; 438} 439 440static int bond_newlink(struct net *src_net, struct net_device *bond_dev, 441 struct nlattr *tb[], struct nlattr *data[]) 442{ 443 int err; 444 445 err = bond_changelink(bond_dev, tb, data); 446 if (err < 0) 447 return err; 448 449 return register_netdevice(bond_dev); 450} 451 452static size_t bond_get_size(const struct net_device *bond_dev) 453{ 454 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */ 455 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */ 456 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */ 457 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */ 458 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */ 459 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */ 460 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */ 461 /* IFLA_BOND_ARP_IP_TARGET */ 462 nla_total_size(sizeof(struct nlattr)) + 463 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS + 464 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */ 465 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */ 466 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */ 467 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */ 468 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */ 469 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */ 470 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */ 471 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */ 472 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */ 473 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */ 474 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */ 475 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */ 476 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */ 477 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */ 478 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */ 479 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */ 480 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */ 481 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */ 482 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/ 483 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/ 484 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */ 485 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */ 486 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */ 487 nla_total_size(sizeof(u8)) + /* IFLA_BOND_TLB_DYNAMIC_LB */ 488 0; 489} 490 491static int bond_option_active_slave_get_ifindex(struct bonding *bond) 492{ 493 const struct net_device *slave; 494 int ifindex; 495 496 rcu_read_lock(); 497 slave = bond_option_active_slave_get_rcu(bond); 498 ifindex = slave ? slave->ifindex : 0; 499 rcu_read_unlock(); 500 return ifindex; 501} 502 503static int bond_fill_info(struct sk_buff *skb, 504 const struct net_device *bond_dev) 505{ 506 struct bonding *bond = netdev_priv(bond_dev); 507 unsigned int packets_per_slave; 508 int ifindex, i, targets_added; 509 struct nlattr *targets; 510 struct slave *primary; 511 512 if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond))) 513 goto nla_put_failure; 514 515 ifindex = bond_option_active_slave_get_ifindex(bond); 516 if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex)) 517 goto nla_put_failure; 518 519 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon)) 520 goto nla_put_failure; 521 522 if (nla_put_u32(skb, IFLA_BOND_UPDELAY, 523 bond->params.updelay * bond->params.miimon)) 524 goto nla_put_failure; 525 526 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY, 527 bond->params.downdelay * bond->params.miimon)) 528 goto nla_put_failure; 529 530 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier)) 531 goto nla_put_failure; 532 533 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval)) 534 goto nla_put_failure; 535 536 targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET); 537 if (!targets) 538 goto nla_put_failure; 539 540 targets_added = 0; 541 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { 542 if (bond->params.arp_targets[i]) { 543 nla_put_be32(skb, i, bond->params.arp_targets[i]); 544 targets_added = 1; 545 } 546 } 547 548 if (targets_added) 549 nla_nest_end(skb, targets); 550 else 551 nla_nest_cancel(skb, targets); 552 553 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate)) 554 goto nla_put_failure; 555 556 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS, 557 bond->params.arp_all_targets)) 558 goto nla_put_failure; 559 560 primary = rtnl_dereference(bond->primary_slave); 561 if (primary && 562 nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex)) 563 goto nla_put_failure; 564 565 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT, 566 bond->params.primary_reselect)) 567 goto nla_put_failure; 568 569 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC, 570 bond->params.fail_over_mac)) 571 goto nla_put_failure; 572 573 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY, 574 bond->params.xmit_policy)) 575 goto nla_put_failure; 576 577 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP, 578 bond->params.resend_igmp)) 579 goto nla_put_failure; 580 581 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF, 582 bond->params.num_peer_notif)) 583 goto nla_put_failure; 584 585 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE, 586 bond->params.all_slaves_active)) 587 goto nla_put_failure; 588 589 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS, 590 bond->params.min_links)) 591 goto nla_put_failure; 592 593 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL, 594 bond->params.lp_interval)) 595 goto nla_put_failure; 596 597 packets_per_slave = bond->params.packets_per_slave; 598 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE, 599 packets_per_slave)) 600 goto nla_put_failure; 601 602 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE, 603 bond->params.lacp_fast)) 604 goto nla_put_failure; 605 606 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT, 607 bond->params.ad_select)) 608 goto nla_put_failure; 609 610 if (nla_put_u8(skb, IFLA_BOND_TLB_DYNAMIC_LB, 611 bond->params.tlb_dynamic_lb)) 612 goto nla_put_failure; 613 614 if (BOND_MODE(bond) == BOND_MODE_8023AD) { 615 struct ad_info info; 616 617 if (capable(CAP_NET_ADMIN)) { 618 if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO, 619 bond->params.ad_actor_sys_prio)) 620 goto nla_put_failure; 621 622 if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY, 623 bond->params.ad_user_port_key)) 624 goto nla_put_failure; 625 626 if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM, 627 sizeof(bond->params.ad_actor_system), 628 &bond->params.ad_actor_system)) 629 goto nla_put_failure; 630 } 631 if (!bond_3ad_get_active_agg_info(bond, &info)) { 632 struct nlattr *nest; 633 634 nest = nla_nest_start(skb, IFLA_BOND_AD_INFO); 635 if (!nest) 636 goto nla_put_failure; 637 638 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR, 639 info.aggregator_id)) 640 goto nla_put_failure; 641 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS, 642 info.ports)) 643 goto nla_put_failure; 644 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY, 645 info.actor_key)) 646 goto nla_put_failure; 647 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY, 648 info.partner_key)) 649 goto nla_put_failure; 650 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC, 651 sizeof(info.partner_system), 652 &info.partner_system)) 653 goto nla_put_failure; 654 655 nla_nest_end(skb, nest); 656 } 657 } 658 659 return 0; 660 661nla_put_failure: 662 return -EMSGSIZE; 663} 664 665struct rtnl_link_ops bond_link_ops __read_mostly = { 666 .kind = "bond", 667 .priv_size = sizeof(struct bonding), 668 .setup = bond_setup, 669 .maxtype = IFLA_BOND_MAX, 670 .policy = bond_policy, 671 .validate = bond_validate, 672 .newlink = bond_newlink, 673 .changelink = bond_changelink, 674 .get_size = bond_get_size, 675 .fill_info = bond_fill_info, 676 .get_num_tx_queues = bond_get_num_tx_queues, 677 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number 678 as for TX queues */ 679 .slave_maxtype = IFLA_BOND_SLAVE_MAX, 680 .slave_policy = bond_slave_policy, 681 .slave_changelink = bond_slave_changelink, 682 .get_slave_size = bond_get_slave_size, 683 .fill_slave_info = bond_fill_slave_info, 684}; 685 686int __init bond_netlink_init(void) 687{ 688 return rtnl_link_register(&bond_link_ops); 689} 690 691void bond_netlink_fini(void) 692{ 693 rtnl_link_unregister(&bond_link_ops); 694} 695 696MODULE_ALIAS_RTNL_LINK("bond"); 697