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 [IFLA_BOND_TLB_DYNAMIC_LB] = { .type = NLA_U8 }, 115 }; 116 117 static const struct nla_policy bond_slave_policy[IFLA_BOND_SLAVE_MAX + 1] = { 118 [IFLA_BOND_SLAVE_QUEUE_ID] = { .type = NLA_U16 }, 119 }; 120 121 static 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 } 131 132 static 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 } 158 159 static 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 } 439 440 static int bond_newlink(struct net *src_net, struct net_device *bond_dev, 441 struct nlattr *tb[], struct nlattr *data[], 442 struct netlink_ext_ack *extack) 443 { 444 int err; 445 446 err = bond_changelink(bond_dev, tb, data); 447 if (err < 0) 448 return err; 449 450 err = register_netdevice(bond_dev); 451 452 netif_carrier_off(bond_dev); 453 if (!err) { 454 struct bonding *bond = netdev_priv(bond_dev); 455 456 bond_work_init_all(bond); 457 } 458 459 return err; 460 } 461 462 static size_t bond_get_size(const struct net_device *bond_dev) 463 { 464 return nla_total_size(sizeof(u8)) + /* IFLA_BOND_MODE */ 465 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ACTIVE_SLAVE */ 466 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIIMON */ 467 nla_total_size(sizeof(u32)) + /* IFLA_BOND_UPDELAY */ 468 nla_total_size(sizeof(u32)) + /* IFLA_BOND_DOWNDELAY */ 469 nla_total_size(sizeof(u8)) + /* IFLA_BOND_USE_CARRIER */ 470 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_INTERVAL */ 471 /* IFLA_BOND_ARP_IP_TARGET */ 472 nla_total_size(sizeof(struct nlattr)) + 473 nla_total_size(sizeof(u32)) * BOND_MAX_ARP_TARGETS + 474 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_VALIDATE */ 475 nla_total_size(sizeof(u32)) + /* IFLA_BOND_ARP_ALL_TARGETS */ 476 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PRIMARY */ 477 nla_total_size(sizeof(u8)) + /* IFLA_BOND_PRIMARY_RESELECT */ 478 nla_total_size(sizeof(u8)) + /* IFLA_BOND_FAIL_OVER_MAC */ 479 nla_total_size(sizeof(u8)) + /* IFLA_BOND_XMIT_HASH_POLICY */ 480 nla_total_size(sizeof(u32)) + /* IFLA_BOND_RESEND_IGMP */ 481 nla_total_size(sizeof(u8)) + /* IFLA_BOND_NUM_PEER_NOTIF */ 482 nla_total_size(sizeof(u8)) + /* IFLA_BOND_ALL_SLAVES_ACTIVE */ 483 nla_total_size(sizeof(u32)) + /* IFLA_BOND_MIN_LINKS */ 484 nla_total_size(sizeof(u32)) + /* IFLA_BOND_LP_INTERVAL */ 485 nla_total_size(sizeof(u32)) + /* IFLA_BOND_PACKETS_PER_SLAVE */ 486 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_LACP_RATE */ 487 nla_total_size(sizeof(u8)) + /* IFLA_BOND_AD_SELECT */ 488 nla_total_size(sizeof(struct nlattr)) + /* IFLA_BOND_AD_INFO */ 489 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_AGGREGATOR */ 490 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_NUM_PORTS */ 491 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_ACTOR_KEY */ 492 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_INFO_PARTNER_KEY*/ 493 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_INFO_PARTNER_MAC*/ 494 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_ACTOR_SYS_PRIO */ 495 nla_total_size(sizeof(u16)) + /* IFLA_BOND_AD_USER_PORT_KEY */ 496 nla_total_size(ETH_ALEN) + /* IFLA_BOND_AD_ACTOR_SYSTEM */ 497 nla_total_size(sizeof(u8)) + /* IFLA_BOND_TLB_DYNAMIC_LB */ 498 0; 499 } 500 501 static int bond_option_active_slave_get_ifindex(struct bonding *bond) 502 { 503 const struct net_device *slave; 504 int ifindex; 505 506 rcu_read_lock(); 507 slave = bond_option_active_slave_get_rcu(bond); 508 ifindex = slave ? slave->ifindex : 0; 509 rcu_read_unlock(); 510 return ifindex; 511 } 512 513 static int bond_fill_info(struct sk_buff *skb, 514 const struct net_device *bond_dev) 515 { 516 struct bonding *bond = netdev_priv(bond_dev); 517 unsigned int packets_per_slave; 518 int ifindex, i, targets_added; 519 struct nlattr *targets; 520 struct slave *primary; 521 522 if (nla_put_u8(skb, IFLA_BOND_MODE, BOND_MODE(bond))) 523 goto nla_put_failure; 524 525 ifindex = bond_option_active_slave_get_ifindex(bond); 526 if (ifindex && nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, ifindex)) 527 goto nla_put_failure; 528 529 if (nla_put_u32(skb, IFLA_BOND_MIIMON, bond->params.miimon)) 530 goto nla_put_failure; 531 532 if (nla_put_u32(skb, IFLA_BOND_UPDELAY, 533 bond->params.updelay * bond->params.miimon)) 534 goto nla_put_failure; 535 536 if (nla_put_u32(skb, IFLA_BOND_DOWNDELAY, 537 bond->params.downdelay * bond->params.miimon)) 538 goto nla_put_failure; 539 540 if (nla_put_u8(skb, IFLA_BOND_USE_CARRIER, bond->params.use_carrier)) 541 goto nla_put_failure; 542 543 if (nla_put_u32(skb, IFLA_BOND_ARP_INTERVAL, bond->params.arp_interval)) 544 goto nla_put_failure; 545 546 targets = nla_nest_start(skb, IFLA_BOND_ARP_IP_TARGET); 547 if (!targets) 548 goto nla_put_failure; 549 550 targets_added = 0; 551 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) { 552 if (bond->params.arp_targets[i]) { 553 if (nla_put_be32(skb, i, bond->params.arp_targets[i])) 554 goto nla_put_failure; 555 targets_added = 1; 556 } 557 } 558 559 if (targets_added) 560 nla_nest_end(skb, targets); 561 else 562 nla_nest_cancel(skb, targets); 563 564 if (nla_put_u32(skb, IFLA_BOND_ARP_VALIDATE, bond->params.arp_validate)) 565 goto nla_put_failure; 566 567 if (nla_put_u32(skb, IFLA_BOND_ARP_ALL_TARGETS, 568 bond->params.arp_all_targets)) 569 goto nla_put_failure; 570 571 primary = rtnl_dereference(bond->primary_slave); 572 if (primary && 573 nla_put_u32(skb, IFLA_BOND_PRIMARY, primary->dev->ifindex)) 574 goto nla_put_failure; 575 576 if (nla_put_u8(skb, IFLA_BOND_PRIMARY_RESELECT, 577 bond->params.primary_reselect)) 578 goto nla_put_failure; 579 580 if (nla_put_u8(skb, IFLA_BOND_FAIL_OVER_MAC, 581 bond->params.fail_over_mac)) 582 goto nla_put_failure; 583 584 if (nla_put_u8(skb, IFLA_BOND_XMIT_HASH_POLICY, 585 bond->params.xmit_policy)) 586 goto nla_put_failure; 587 588 if (nla_put_u32(skb, IFLA_BOND_RESEND_IGMP, 589 bond->params.resend_igmp)) 590 goto nla_put_failure; 591 592 if (nla_put_u8(skb, IFLA_BOND_NUM_PEER_NOTIF, 593 bond->params.num_peer_notif)) 594 goto nla_put_failure; 595 596 if (nla_put_u8(skb, IFLA_BOND_ALL_SLAVES_ACTIVE, 597 bond->params.all_slaves_active)) 598 goto nla_put_failure; 599 600 if (nla_put_u32(skb, IFLA_BOND_MIN_LINKS, 601 bond->params.min_links)) 602 goto nla_put_failure; 603 604 if (nla_put_u32(skb, IFLA_BOND_LP_INTERVAL, 605 bond->params.lp_interval)) 606 goto nla_put_failure; 607 608 packets_per_slave = bond->params.packets_per_slave; 609 if (nla_put_u32(skb, IFLA_BOND_PACKETS_PER_SLAVE, 610 packets_per_slave)) 611 goto nla_put_failure; 612 613 if (nla_put_u8(skb, IFLA_BOND_AD_LACP_RATE, 614 bond->params.lacp_fast)) 615 goto nla_put_failure; 616 617 if (nla_put_u8(skb, IFLA_BOND_AD_SELECT, 618 bond->params.ad_select)) 619 goto nla_put_failure; 620 621 if (nla_put_u8(skb, IFLA_BOND_TLB_DYNAMIC_LB, 622 bond->params.tlb_dynamic_lb)) 623 goto nla_put_failure; 624 625 if (BOND_MODE(bond) == BOND_MODE_8023AD) { 626 struct ad_info info; 627 628 if (capable(CAP_NET_ADMIN)) { 629 if (nla_put_u16(skb, IFLA_BOND_AD_ACTOR_SYS_PRIO, 630 bond->params.ad_actor_sys_prio)) 631 goto nla_put_failure; 632 633 if (nla_put_u16(skb, IFLA_BOND_AD_USER_PORT_KEY, 634 bond->params.ad_user_port_key)) 635 goto nla_put_failure; 636 637 if (nla_put(skb, IFLA_BOND_AD_ACTOR_SYSTEM, 638 sizeof(bond->params.ad_actor_system), 639 &bond->params.ad_actor_system)) 640 goto nla_put_failure; 641 } 642 if (!bond_3ad_get_active_agg_info(bond, &info)) { 643 struct nlattr *nest; 644 645 nest = nla_nest_start(skb, IFLA_BOND_AD_INFO); 646 if (!nest) 647 goto nla_put_failure; 648 649 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_AGGREGATOR, 650 info.aggregator_id)) 651 goto nla_put_failure; 652 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_NUM_PORTS, 653 info.ports)) 654 goto nla_put_failure; 655 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_ACTOR_KEY, 656 info.actor_key)) 657 goto nla_put_failure; 658 if (nla_put_u16(skb, IFLA_BOND_AD_INFO_PARTNER_KEY, 659 info.partner_key)) 660 goto nla_put_failure; 661 if (nla_put(skb, IFLA_BOND_AD_INFO_PARTNER_MAC, 662 sizeof(info.partner_system), 663 &info.partner_system)) 664 goto nla_put_failure; 665 666 nla_nest_end(skb, nest); 667 } 668 } 669 670 return 0; 671 672 nla_put_failure: 673 return -EMSGSIZE; 674 } 675 676 struct rtnl_link_ops bond_link_ops __read_mostly = { 677 .kind = "bond", 678 .priv_size = sizeof(struct bonding), 679 .setup = bond_setup, 680 .maxtype = IFLA_BOND_MAX, 681 .policy = bond_policy, 682 .validate = bond_validate, 683 .newlink = bond_newlink, 684 .changelink = bond_changelink, 685 .get_size = bond_get_size, 686 .fill_info = bond_fill_info, 687 .get_num_tx_queues = bond_get_num_tx_queues, 688 .get_num_rx_queues = bond_get_num_tx_queues, /* Use the same number 689 as for TX queues */ 690 .slave_maxtype = IFLA_BOND_SLAVE_MAX, 691 .slave_policy = bond_slave_policy, 692 .slave_changelink = bond_slave_changelink, 693 .get_slave_size = bond_get_slave_size, 694 .fill_slave_info = bond_fill_slave_info, 695 }; 696 697 int __init bond_netlink_init(void) 698 { 699 return rtnl_link_register(&bond_link_ops); 700 } 701 702 void bond_netlink_fini(void) 703 { 704 rtnl_link_unregister(&bond_link_ops); 705 } 706 707 MODULE_ALIAS_RTNL_LINK("bond"); 708