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 22 static 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 36 static 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 82 nla_put_failure: 83 return -EMSGSIZE; 84 } 85 86 static 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 }; 115 116 static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = { 117 [IFLA_BOND_SLAVE_QUEUE_ID] = { .type = NLA_U16 }, 118 }; 119 120 static int bond_validate(struct nlattr *tb[], struct nlattr *data[]) 121 { 122 if (tb[IFLA_ADDRESS]) { 123 if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN) 124 return -EINVAL; 125 if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS]))) 126 return -EADDRNOTAVAIL; 127 } 128 return 0; 129 } 130 131 static int bond_slave_changelink(struct net_device *bond_dev, 132 struct net_device *slave_dev, 133 struct nlattr *tb[], struct nlattr *data[]) 134 { 135 struct bonding *bond = netdev_priv(bond_dev); 136 struct bond_opt_value newval; 137 int err; 138 139 if (!data) 140 return 0; 141 142 if (data[IFLA_BOND_SLAVE_QUEUE_ID]) { 143 u16 queue_id = nla_get_u16(data[IFLA_BOND_SLAVE_QUEUE_ID]); 144 char queue_id_str[IFNAMSIZ + 7]; 145 146 /* queue_id option setting expects slave_name:queue_id */ 147 snprintf(queue_id_str, sizeof(queue_id_str), "%s:%u\n", 148 slave_dev->name, queue_id); 149 bond_opt_initstr(&newval, queue_id_str); 150 err = __bond_opt_set(bond, BOND_OPT_QUEUE_ID, &newval); 151 if (err) 152 return err; 153 } 154 155 return 0; 156 } 157 158 static int bond_changelink(struct net_device *bond_dev, 159 struct nlattr *tb[], struct nlattr *data[]) 160 { 161 struct bonding *bond = netdev_priv(bond_dev); 162 struct bond_opt_value newval; 163 int miimon = 0; 164 int err; 165 166 if (!data) 167 return 0; 168 169 if (data[IFLA_BOND_MODE]) { 170 int mode = nla_get_u8(data[IFLA_BOND_MODE]); 171 172 bond_opt_initval(&newval, mode); 173 err = __bond_opt_set(bond, BOND_OPT_MODE, &newval); 174 if (err) 175 return err; 176 } 177 if (data[IFLA_BOND_ACTIVE_SLAVE]) { 178 int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]); 179 struct net_device *slave_dev; 180 char *active_slave = ""; 181 182 if (ifindex != 0) { 183 slave_dev = __dev_get_by_index(dev_net(bond_dev), 184 ifindex); 185 if (!slave_dev) 186 return -ENODEV; 187 active_slave = slave_dev->name; 188 } 189 bond_opt_initstr(&newval, active_slave); 190 err = __bond_opt_set(bond, BOND_OPT_ACTIVE_SLAVE, &newval); 191 if (err) 192 return err; 193 } 194 if (data[IFLA_BOND_MIIMON]) { 195 miimon = nla_get_u32(data[IFLA_BOND_MIIMON]); 196 197 bond_opt_initval(&newval, miimon); 198 err = __bond_opt_set(bond, BOND_OPT_MIIMON, &newval); 199 if (err) 200 return err; 201 } 202 if (data[IFLA_BOND_UPDELAY]) { 203 int updelay = nla_get_u32(data[IFLA_BOND_UPDELAY]); 204 205 bond_opt_initval(&newval, updelay); 206 err = __bond_opt_set(bond, BOND_OPT_UPDELAY, &newval); 207 if (err) 208 return err; 209 } 210 if (data[IFLA_BOND_DOWNDELAY]) { 211 int downdelay = nla_get_u32(data[IFLA_BOND_DOWNDELAY]); 212 213 bond_opt_initval(&newval, downdelay); 214 err = __bond_opt_set(bond, BOND_OPT_DOWNDELAY, &newval); 215 if (err) 216 return err; 217 } 218 if (data[IFLA_BOND_USE_CARRIER]) { 219 int use_carrier = nla_get_u8(data[IFLA_BOND_USE_CARRIER]); 220 221 bond_opt_initval(&newval, use_carrier); 222 err = __bond_opt_set(bond, BOND_OPT_USE_CARRIER, &newval); 223 if (err) 224 return err; 225 } 226 if (data[IFLA_BOND_ARP_INTERVAL]) { 227 int arp_interval = nla_get_u32(data[IFLA_BOND_ARP_INTERVAL]); 228 229 if (arp_interval && miimon) { 230 netdev_err(bond->dev, "ARP monitoring cannot be used with MII monitoring\n"); 231 return -EINVAL; 232 } 233 234 bond_opt_initval(&newval, arp_interval); 235 err = __bond_opt_set(bond, BOND_OPT_ARP_INTERVAL, &newval); 236 if (err) 237 return err; 238 } 239 if (data[IFLA_BOND_ARP_IP_TARGET]) { 240 struct nlattr *attr; 241 int i = 0, rem; 242 243 bond_option_arp_ip_targets_clear(bond); 244 nla_for_each_nested(attr, data[IFLA_BOND_ARP_IP_TARGET], rem) { 245 __be32 target; 246 247 if (nla_len(attr) < sizeof(target)) 248 return -EINVAL; 249 250 target = nla_get_be32(attr); 251 252 bond_opt_initval(&newval, (__force u64)target); 253 err = __bond_opt_set(bond, BOND_OPT_ARP_TARGETS, 254 &newval); 255 if (err) 256 break; 257 i++; 258 } 259 if (i == 0 && bond->params.arp_interval) 260 netdev_warn(bond->dev, "Removing last arp target with arp_interval on\n"); 261 if (err) 262 return err; 263 } 264 if (data[IFLA_BOND_ARP_VALIDATE]) { 265 int arp_validate = nla_get_u32(data[IFLA_BOND_ARP_VALIDATE]); 266 267 if (arp_validate && miimon) { 268 netdev_err(bond->dev, "ARP validating cannot be used with MII monitoring\n"); 269 return -EINVAL; 270 } 271 272 bond_opt_initval(&newval, arp_validate); 273 err = __bond_opt_set(bond, BOND_OPT_ARP_VALIDATE, &newval); 274 if (err) 275 return err; 276 } 277 if (data[IFLA_BOND_ARP_ALL_TARGETS]) { 278 int arp_all_targets = 279 nla_get_u32(data[IFLA_BOND_ARP_ALL_TARGETS]); 280 281 bond_opt_initval(&newval, arp_all_targets); 282 err = __bond_opt_set(bond, BOND_OPT_ARP_ALL_TARGETS, &newval); 283 if (err) 284 return err; 285 } 286 if (data[IFLA_BOND_PRIMARY]) { 287 int ifindex = nla_get_u32(data[IFLA_BOND_PRIMARY]); 288 struct net_device *dev; 289 char *primary = ""; 290 291 dev = __dev_get_by_index(dev_net(bond_dev), ifindex); 292 if (dev) 293 primary = dev->name; 294 295 bond_opt_initstr(&newval, primary); 296 err = __bond_opt_set(bond, BOND_OPT_PRIMARY, &newval); 297 if (err) 298 return err; 299 } 300 if (data[IFLA_BOND_PRIMARY_RESELECT]) { 301 int primary_reselect = 302 nla_get_u8(data[IFLA_BOND_PRIMARY_RESELECT]); 303 304 bond_opt_initval(&newval, primary_reselect); 305 err = __bond_opt_set(bond, BOND_OPT_PRIMARY_RESELECT, &newval); 306 if (err) 307 return err; 308 } 309 if (data[IFLA_BOND_FAIL_OVER_MAC]) { 310 int fail_over_mac = 311 nla_get_u8(data[IFLA_BOND_FAIL_OVER_MAC]); 312 313 bond_opt_initval(&newval, fail_over_mac); 314 err = __bond_opt_set(bond, BOND_OPT_FAIL_OVER_MAC, &newval); 315 if (err) 316 return err; 317 } 318 if (data[IFLA_BOND_XMIT_HASH_POLICY]) { 319 int xmit_hash_policy = 320 nla_get_u8(data[IFLA_BOND_XMIT_HASH_POLICY]); 321 322 bond_opt_initval(&newval, xmit_hash_policy); 323 err = __bond_opt_set(bond, BOND_OPT_XMIT_HASH, &newval); 324 if (err) 325 return err; 326 } 327 if (data[IFLA_BOND_RESEND_IGMP]) { 328 int resend_igmp = 329 nla_get_u32(data[IFLA_BOND_RESEND_IGMP]); 330 331 bond_opt_initval(&newval, resend_igmp); 332 err = __bond_opt_set(bond, BOND_OPT_RESEND_IGMP, &newval); 333 if (err) 334 return err; 335 } 336 if (data[IFLA_BOND_NUM_PEER_NOTIF]) { 337 int num_peer_notif = 338 nla_get_u8(data[IFLA_BOND_NUM_PEER_NOTIF]); 339 340 bond_opt_initval(&newval, num_peer_notif); 341 err = __bond_opt_set(bond, BOND_OPT_NUM_PEER_NOTIF, &newval); 342 if (err) 343 return err; 344 } 345 if (data[IFLA_BOND_ALL_SLAVES_ACTIVE]) { 346 int all_slaves_active = 347 nla_get_u8(data[IFLA_BOND_ALL_SLAVES_ACTIVE]); 348 349 bond_opt_initval(&newval, all_slaves_active); 350 err = __bond_opt_set(bond, BOND_OPT_ALL_SLAVES_ACTIVE, &newval); 351 if (err) 352 return err; 353 } 354 if (data[IFLA_BOND_MIN_LINKS]) { 355 int min_links = 356 nla_get_u32(data[IFLA_BOND_MIN_LINKS]); 357 358 bond_opt_initval(&newval, min_links); 359 err = __bond_opt_set(bond, BOND_OPT_MINLINKS, &newval); 360 if (err) 361 return err; 362 } 363 if (data[IFLA_BOND_LP_INTERVAL]) { 364 int lp_interval = 365 nla_get_u32(data[IFLA_BOND_LP_INTERVAL]); 366 367 bond_opt_initval(&newval, lp_interval); 368 err = __bond_opt_set(bond, BOND_OPT_LP_INTERVAL, &newval); 369 if (err) 370 return err; 371 } 372 if (data[IFLA_BOND_PACKETS_PER_SLAVE]) { 373 int packets_per_slave = 374 nla_get_u32(data[IFLA_BOND_PACKETS_PER_SLAVE]); 375 376 bond_opt_initval(&newval, packets_per_slave); 377 err = __bond_opt_set(bond, BOND_OPT_PACKETS_PER_SLAVE, &newval); 378 if (err) 379 return err; 380 } 381 if (data[IFLA_BOND_AD_LACP_RATE]) { 382 int lacp_rate = 383 nla_get_u8(data[IFLA_BOND_AD_LACP_RATE]); 384 385 bond_opt_initval(&newval, lacp_rate); 386 err = __bond_opt_set(bond, BOND_OPT_LACP_RATE, &newval); 387 if (err) 388 return err; 389 } 390 if (data[IFLA_BOND_AD_SELECT]) { 391 int ad_select = 392 nla_get_u8(data[IFLA_BOND_AD_SELECT]); 393 394 bond_opt_initval(&newval, ad_select); 395 err = __bond_opt_set(bond, BOND_OPT_AD_SELECT, &newval); 396 if (err) 397 return err; 398 } 399 if (data[IFLA_BOND_AD_ACTOR_SYS_PRIO]) { 400 int actor_sys_prio = 401 nla_get_u16(data[IFLA_BOND_AD_ACTOR_SYS_PRIO]); 402 403 bond_opt_initval(&newval, actor_sys_prio); 404 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYS_PRIO, &newval); 405 if (err) 406 return err; 407 } 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 } 418 419 if (data[IFLA_BOND_AD_ACTOR_SYSTEM]) { 420 if (nla_len(data[IFLA_BOND_AD_ACTOR_SYSTEM]) != ETH_ALEN) 421 return -EINVAL; 422 423 bond_opt_initval(&newval, 424 nla_get_be64(data[IFLA_BOND_AD_ACTOR_SYSTEM])); 425 err = __bond_opt_set(bond, BOND_OPT_AD_ACTOR_SYSTEM, &newval); 426 if (err) 427 return err; 428 } 429 return 0; 430 } 431 432 static int bond_newlink(struct net *src_net, struct net_device *bond_dev, 433 struct nlattr *tb[], struct nlattr *data[]) 434 { 435 int err; 436 437 err = bond_changelink(bond_dev, tb, data); 438 if (err < 0) 439 return err; 440 441 return register_netdevice(bond_dev); 442 } 443 444 static size_t bond_get_size(const struct net_device *bond_dev) 445 { 446 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */ 447 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */ 448 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */ 449 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */ 450 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */ 451 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */ 452 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */ 453 /* IFLA_BOND_ARP_IP_TARGET */ 454 nla_total_size(sizeof(struct nlattr)) + 455 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS + 456 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */ 457 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */ 458 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */ 459 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */ 460 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */ 461 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */ 462 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */ 463 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */ 464 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */ 465 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */ 466 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */ 467 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */ 468 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */ 469 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */ 470 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */ 471 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */ 472 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */ 473 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */ 474 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/ 475 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/ 476 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */ 477 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */ 478 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */ 479 0; 480 } 481 482 static int bond_option_active_slave_get_ifindex(struct bonding *bond) 483 { 484 const struct net_device *slave; 485 int ifindex; 486 487 rcu_read_lock(); 488 slave = bond_option_active_slave_get_rcu(bond); 489 ifindex = slave ? slave->ifindex : 0; 490 rcu_read_unlock(); 491 return ifindex; 492 } 493 494 static int bond_fill_info(struct sk_buff *skb, 495 const struct net_device *bond_dev) 496 { 497 struct bonding *bond = netdev_priv(bond_dev); 498 unsigned int packets_per_slave; 499 int ifindex, i, targets_added; 500 struct nlattr *targets; 501 struct slave *primary; 502 503 if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond))) 504 goto nla_put_failure; 505 506 ifindex = bond_option_active_slave_get_ifindex(bond); 507 if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex)) 508 goto nla_put_failure; 509 510 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon)) 511 goto nla_put_failure; 512 513 if (nla_put_u32(skb, IFLA_BOND_UPDELAY, 514 bond->params.updelay * bond->params.miimon)) 515 goto nla_put_failure; 516 517 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY, 518 bond->params.downdelay * bond->params.miimon)) 519 goto nla_put_failure; 520 521 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier)) 522 goto nla_put_failure; 523 524 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval)) 525 goto nla_put_failure; 526 527 targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET); 528 if (!targets) 529 goto nla_put_failure; 530 531 targets_added = 0; 532 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { 533 if (bond->params.arp_targets[i]) { 534 nla_put_be32(skb, i, bond->params.arp_targets[i]); 535 targets_added = 1; 536 } 537 } 538 539 if (targets_added) 540 nla_nest_end(skb, targets); 541 else 542 nla_nest_cancel(skb, targets); 543 544 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate)) 545 goto nla_put_failure; 546 547 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS, 548 bond->params.arp_all_targets)) 549 goto nla_put_failure; 550 551 primary = rtnl_dereference(bond->primary_slave); 552 if (primary && 553 nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex)) 554 goto nla_put_failure; 555 556 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT, 557 bond->params.primary_reselect)) 558 goto nla_put_failure; 559 560 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC, 561 bond->params.fail_over_mac)) 562 goto nla_put_failure; 563 564 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY, 565 bond->params.xmit_policy)) 566 goto nla_put_failure; 567 568 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP, 569 bond->params.resend_igmp)) 570 goto nla_put_failure; 571 572 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF, 573 bond->params.num_peer_notif)) 574 goto nla_put_failure; 575 576 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE, 577 bond->params.all_slaves_active)) 578 goto nla_put_failure; 579 580 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS, 581 bond->params.min_links)) 582 goto nla_put_failure; 583 584 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL, 585 bond->params.lp_interval)) 586 goto nla_put_failure; 587 588 packets_per_slave = bond->params.packets_per_slave; 589 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE, 590 packets_per_slave)) 591 goto nla_put_failure; 592 593 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE, 594 bond->params.lacp_fast)) 595 goto nla_put_failure; 596 597 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT, 598 bond->params.ad_select)) 599 goto nla_put_failure; 600 601 if (BOND_MODE(bond) == BOND_MODE_8023AD) { 602 struct ad_info info; 603 604 if (capable(CAP_NET_ADMIN)) { 605 if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO, 606 bond->params.ad_actor_sys_prio)) 607 goto nla_put_failure; 608 609 if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY, 610 bond->params.ad_user_port_key)) 611 goto nla_put_failure; 612 613 if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM, 614 sizeof(bond->params.ad_actor_system), 615 &bond->params.ad_actor_system)) 616 goto nla_put_failure; 617 } 618 if (!bond_3ad_get_active_agg_info(bond, &info)) { 619 struct nlattr *nest; 620 621 nest = nla_nest_start(skb, IFLA_BOND_AD_INFO); 622 if (!nest) 623 goto nla_put_failure; 624 625 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR, 626 info.aggregator_id)) 627 goto nla_put_failure; 628 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS, 629 info.ports)) 630 goto nla_put_failure; 631 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY, 632 info.actor_key)) 633 goto nla_put_failure; 634 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY, 635 info.partner_key)) 636 goto nla_put_failure; 637 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC, 638 sizeof(info.partner_system), 639 &info.partner_system)) 640 goto nla_put_failure; 641 642 nla_nest_end(skb, nest); 643 } 644 } 645 646 return 0; 647 648 nla_put_failure: 649 return -EMSGSIZE; 650 } 651 652 struct rtnl_link_ops bond_link_ops __read_mostly = { 653 .kind = "bond", 654 .priv_size = sizeof(struct bonding), 655 .setup = bond_setup, 656 .maxtype = IFLA_BOND_MAX, 657 .policy = bond_policy, 658 .validate = bond_validate, 659 .newlink = bond_newlink, 660 .changelink = bond_changelink, 661 .get_size = bond_get_size, 662 .fill_info = bond_fill_info, 663 .get_num_tx_queues = bond_get_num_tx_queues, 664 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number 665 as for TX queues */ 666 .slave_maxtype = IFLA_BOND_SLAVE_MAX, 667 .slave_policy = bond_slave_policy, 668 .slave_changelink = bond_slave_changelink, 669 .get_slave_size = bond_get_slave_size, 670 .fill_slave_info = bond_fill_slave_info, 671 }; 672 673 int __init bond_netlink_init(void) 674 { 675 return rtnl_link_register(&bond_link_ops); 676 } 677 678 void bond_netlink_fini(void) 679 { 680 rtnl_link_unregister(&bond_link_ops); 681 } 682 683 MODULE_ALIAS_RTNL_LINK("bond"); 684