ip/iplink_bond.c

   1 /*
   2  * iplink_bond.c        Bonding device support
   3  *
   4  *              This program is free software; you can redistribute it and/or
   5  *              modify it under the terms of the GNU General Public License
   6  *              as published by the Free Software Foundation; either version
   7  *              2 of the License, or (at your option) any later version.
   8  *
   9  * Authors:     Jiri Pirko <jiri@resnulli.us>
  10  *              Scott Feldman <sfeldma@cumulusnetworks.com>
  11  */
  12
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <string.h>
  16 #include <linux/if_link.h>
  17 #include <linux/if_ether.h>
  18 #include <net/if.h>
  19
  20 #include "rt_names.h"
  21 #include "utils.h"
  22 #include "ip_common.h"
  23
  24 #define BOND_MAX_ARP_TARGETS    16
  25
  26 static const char *mode_tbl[] = {
  27         "balance-rr",
  28         "active-backup",
  29         "balance-xor",
  30         "broadcast",
  31         "802.3ad",
  32         "balance-tlb",
  33         "balance-alb",
  34         NULL,
  35 };
  36
  37 static const char *arp_validate_tbl[] = {
  38         "none",
  39         "active",
  40         "backup",
  41         "all",
  42         NULL,
  43 };
  44
  45 static const char *arp_all_targets_tbl[] = {
  46         "any",
  47         "all",
  48         NULL,
  49 };
  50
  51 static const char *primary_reselect_tbl[] = {
  52         "always",
  53         "better",
  54         "failure",
  55         NULL,
  56 };
  57
  58 static const char *fail_over_mac_tbl[] = {
  59         "none",
  60         "active",
  61         "follow",
  62         NULL,
  63 };
  64
  65 static const char *xmit_hash_policy_tbl[] = {
  66         "layer2",
  67         "layer3+4",
  68         "layer2+3",
  69         "encap2+3",
  70         "encap3+4",
  71         NULL,
  72 };
  73
  74 static const char *lacp_rate_tbl[] = {
  75         "slow",
  76         "fast",
  77         NULL,
  78 };
  79
  80 static const char *ad_select_tbl[] = {
  81         "stable",
  82         "bandwidth",
  83         "count",
  84         NULL,
  85 };
  86
  87 static const char *get_name(const char **tbl, int index)
  88 {
  89         int i;
  90
  91         for (i = 0; tbl[i]; i++)
  92                 if (i == index)
  93                         return tbl[i];
  94
  95         return "UNKNOWN";
  96 }
  97
  98 static int get_index(const char **tbl, char *name)
  99 {
 100         int i, index;
 101
 102         /* check for integer index passed in instead of name */
 103         if (get_integer(&index, name, 10) == 0)
 104                 for (i = 0; tbl[i]; i++)
 105                         if (i == index)
 106                                 return i;
 107
 108         for (i = 0; tbl[i]; i++)
 109                 if (strcmp(tbl[i], name) == 0)
 110                         return i;
 111
 112         return -1;
 113 }
 114
 115 static void print_explain(FILE *f)
 116 {
 117         fprintf(f,
 118                 "Usage: ... bond [ mode BONDMODE ] [ active_slave SLAVE_DEV ]\n"
 119                 "                [ clear_active_slave ] [ miimon MIIMON ]\n"
 120                 "                [ updelay UPDELAY ] [ downdelay DOWNDELAY ]\n"
 121                 "                [ use_carrier USE_CARRIER ]\n"
 122                 "                [ arp_interval ARP_INTERVAL ]\n"
 123                 "                [ arp_validate ARP_VALIDATE ]\n"
 124                 "                [ arp_all_targets ARP_ALL_TARGETS ]\n"
 125                 "                [ arp_ip_target [ ARP_IP_TARGET, ... ] ]\n"
 126                 "                [ primary SLAVE_DEV ]\n"
 127                 "                [ primary_reselect PRIMARY_RESELECT ]\n"
 128                 "                [ fail_over_mac FAIL_OVER_MAC ]\n"
 129                 "                [ xmit_hash_policy XMIT_HASH_POLICY ]\n"
 130                 "                [ resend_igmp RESEND_IGMP ]\n"
 131                 "                [ num_grat_arp|num_unsol_na NUM_GRAT_ARP|NUM_UNSOL_NA ]\n"
 132                 "                [ all_slaves_active ALL_SLAVES_ACTIVE ]\n"
 133                 "                [ min_links MIN_LINKS ]\n"
 134                 "                [ lp_interval LP_INTERVAL ]\n"
 135                 "                [ packets_per_slave PACKETS_PER_SLAVE ]\n"
 136                 "                [ tlb_dynamic_lb TLB_DYNAMIC_LB ]\n"
 137                 "                [ lacp_rate LACP_RATE ]\n"
 138                 "                [ ad_select AD_SELECT ]\n"
 139                 "                [ ad_user_port_key PORTKEY ]\n"
 140                 "                [ ad_actor_sys_prio SYSPRIO ]\n"
 141                 "                [ ad_actor_system LLADDR ]\n"
 142                 "\n"
 143                 "BONDMODE := balance-rr|active-backup|balance-xor|broadcast|802.3ad|balance-tlb|balance-alb\n"
 144                 "ARP_VALIDATE := none|active|backup|all\n"
 145                 "ARP_ALL_TARGETS := any|all\n"
 146                 "PRIMARY_RESELECT := always|better|failure\n"
 147                 "FAIL_OVER_MAC := none|active|follow\n"
 148                 "XMIT_HASH_POLICY := layer2|layer2+3|layer3+4|encap2+3|encap3+4\n"
 149                 "LACP_RATE := slow|fast\n"
 150                 "AD_SELECT := stable|bandwidth|count\n"
 151         );
 152 }
 153
 154 static void explain(void)
 155 {
 156         print_explain(stderr);
 157 }
 158
 159 static int bond_parse_opt(struct link_util *lu, int argc, char **argv,
 160                           struct nlmsghdr *n)
 161 {
 162         __u8 mode, use_carrier, primary_reselect, fail_over_mac;
 163         __u8 xmit_hash_policy, num_peer_notif, all_slaves_active;
 164         __u8 lacp_rate, ad_select, tlb_dynamic_lb;
 165         __u16 ad_user_port_key, ad_actor_sys_prio;
 166         __u32 miimon, updelay, downdelay, arp_interval, arp_validate;
 167         __u32 arp_all_targets, resend_igmp, min_links, lp_interval;
 168         __u32 packets_per_slave;
 169         unsigned int ifindex;
 170
 171         while (argc > 0) {
 172                 if (matches(*argv, "mode") == 0) {
 173                         NEXT_ARG();
 174                         if (get_index(mode_tbl, *argv) < 0)
 175                                 invarg("invalid mode", *argv);
 176                         mode = get_index(mode_tbl, *argv);
 177                         addattr8(n, 1024, IFLA_BOND_MODE, mode);
 178                 } else if (matches(*argv, "active_slave") == 0) {
 179                         NEXT_ARG();
 180                         ifindex = if_nametoindex(*argv);
 181                         if (!ifindex)
 182                                 return -1;
 183                         addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, ifindex);
 184                 } else if (matches(*argv, "clear_active_slave") == 0) {
 185                         addattr32(n, 1024, IFLA_BOND_ACTIVE_SLAVE, 0);
 186                 } else if (matches(*argv, "miimon") == 0) {
 187                         NEXT_ARG();
 188                         if (get_u32(&miimon, *argv, 0))
 189                                 invarg("invalid miimon", *argv);
 190                         addattr32(n, 1024, IFLA_BOND_MIIMON, miimon);
 191                 } else if (matches(*argv, "updelay") == 0) {
 192                         NEXT_ARG();
 193                         if (get_u32(&updelay, *argv, 0))
 194                                 invarg("invalid updelay", *argv);
 195                         addattr32(n, 1024, IFLA_BOND_UPDELAY, updelay);
 196                 } else if (matches(*argv, "downdelay") == 0) {
 197                         NEXT_ARG();
 198                         if (get_u32(&downdelay, *argv, 0))
 199                                 invarg("invalid downdelay", *argv);
 200                         addattr32(n, 1024, IFLA_BOND_DOWNDELAY, downdelay);
 201                 } else if (matches(*argv, "use_carrier") == 0) {
 202                         NEXT_ARG();
 203                         if (get_u8(&use_carrier, *argv, 0))
 204                                 invarg("invalid use_carrier", *argv);
 205                         addattr8(n, 1024, IFLA_BOND_USE_CARRIER, use_carrier);
 206                 } else if (matches(*argv, "arp_interval") == 0) {
 207                         NEXT_ARG();
 208                         if (get_u32(&arp_interval, *argv, 0))
 209                                 invarg("invalid arp_interval", *argv);
 210                         addattr32(n, 1024, IFLA_BOND_ARP_INTERVAL, arp_interval);
 211                 } else if (matches(*argv, "arp_ip_target") == 0) {
 212                         struct rtattr *nest = addattr_nest(n, 1024,
 213                                 IFLA_BOND_ARP_IP_TARGET);
 214                         if (NEXT_ARG_OK()) {
 215                                 NEXT_ARG();
 216                                 char *targets = strdupa(*argv);
 217                                 char *target = strtok(targets, ",");
 218                                 int i;
 219
 220                                 for (i = 0; target && i < BOND_MAX_ARP_TARGETS; i++) {
 221                                         __u32 addr = get_addr32(target);
 222
 223                                         addattr32(n, 1024, i, addr);
 224                                         target = strtok(NULL, ",");
 225                                 }
 226                                 addattr_nest_end(n, nest);
 227                         }
 228                         addattr_nest_end(n, nest);
 229                 } else if (matches(*argv, "arp_validate") == 0) {
 230                         NEXT_ARG();
 231                         if (get_index(arp_validate_tbl, *argv) < 0)
 232                                 invarg("invalid arp_validate", *argv);
 233                         arp_validate = get_index(arp_validate_tbl, *argv);
 234                         addattr32(n, 1024, IFLA_BOND_ARP_VALIDATE, arp_validate);
 235                 } else if (matches(*argv, "arp_all_targets") == 0) {
 236                         NEXT_ARG();
 237                         if (get_index(arp_all_targets_tbl, *argv) < 0)
 238                                 invarg("invalid arp_all_targets", *argv);
 239                         arp_all_targets = get_index(arp_all_targets_tbl, *argv);
 240                         addattr32(n, 1024, IFLA_BOND_ARP_ALL_TARGETS, arp_all_targets);
 241                 } else if (matches(*argv, "primary") == 0) {
 242                         NEXT_ARG();
 243                         ifindex = if_nametoindex(*argv);
 244                         if (!ifindex)
 245                                 return -1;
 246                         addattr32(n, 1024, IFLA_BOND_PRIMARY, ifindex);
 247                 } else if (matches(*argv, "primary_reselect") == 0) {
 248                         NEXT_ARG();
 249                         if (get_index(primary_reselect_tbl, *argv) < 0)
 250                                 invarg("invalid primary_reselect", *argv);
 251                         primary_reselect = get_index(primary_reselect_tbl, *argv);
 252                         addattr8(n, 1024, IFLA_BOND_PRIMARY_RESELECT,
 253                                  primary_reselect);
 254                 } else if (matches(*argv, "fail_over_mac") == 0) {
 255                         NEXT_ARG();
 256                         if (get_index(fail_over_mac_tbl, *argv) < 0)
 257                                 invarg("invalid fail_over_mac", *argv);
 258                         fail_over_mac = get_index(fail_over_mac_tbl, *argv);
 259                         addattr8(n, 1024, IFLA_BOND_FAIL_OVER_MAC,
 260                                  fail_over_mac);
 261                 } else if (matches(*argv, "xmit_hash_policy") == 0) {
 262                         NEXT_ARG();
 263                         if (get_index(xmit_hash_policy_tbl, *argv) < 0)
 264                                 invarg("invalid xmit_hash_policy", *argv);
 265
 266                         xmit_hash_policy = get_index(xmit_hash_policy_tbl, *argv);
 267                         addattr8(n, 1024, IFLA_BOND_XMIT_HASH_POLICY,
 268                                  xmit_hash_policy);
 269                 } else if (matches(*argv, "resend_igmp") == 0) {
 270                         NEXT_ARG();
 271                         if (get_u32(&resend_igmp, *argv, 0))
 272                                 invarg("invalid resend_igmp", *argv);
 273
 274                         addattr32(n, 1024, IFLA_BOND_RESEND_IGMP, resend_igmp);
 275                 } else if (matches(*argv, "num_grat_arp") == 0 ||
 276                            matches(*argv, "num_unsol_na") == 0) {
 277                         NEXT_ARG();
 278                         if (get_u8(&num_peer_notif, *argv, 0))
 279                                 invarg("invalid num_grat_arp|num_unsol_na",
 280                                        *argv);
 281
 282                         addattr8(n, 1024, IFLA_BOND_NUM_PEER_NOTIF,
 283                                  num_peer_notif);
 284                 } else if (matches(*argv, "all_slaves_active") == 0) {
 285                         NEXT_ARG();
 286                         if (get_u8(&all_slaves_active, *argv, 0))
 287                                 invarg("invalid all_slaves_active", *argv);
 288
 289                         addattr8(n, 1024, IFLA_BOND_ALL_SLAVES_ACTIVE,
 290                                  all_slaves_active);
 291                 } else if (matches(*argv, "min_links") == 0) {
 292                         NEXT_ARG();
 293                         if (get_u32(&min_links, *argv, 0))
 294                                 invarg("invalid min_links", *argv);
 295
 296                         addattr32(n, 1024, IFLA_BOND_MIN_LINKS, min_links);
 297                 } else if (matches(*argv, "lp_interval") == 0) {
 298                         NEXT_ARG();
 299                         if (get_u32(&lp_interval, *argv, 0))
 300                                 invarg("invalid lp_interval", *argv);
 301
 302                         addattr32(n, 1024, IFLA_BOND_LP_INTERVAL, lp_interval);
 303                 } else if (matches(*argv, "packets_per_slave") == 0) {
 304                         NEXT_ARG();
 305                         if (get_u32(&packets_per_slave, *argv, 0))
 306                                 invarg("invalid packets_per_slave", *argv);
 307
 308                         addattr32(n, 1024, IFLA_BOND_PACKETS_PER_SLAVE,
 309                                   packets_per_slave);
 310                 } else if (matches(*argv, "lacp_rate") == 0) {
 311                         NEXT_ARG();
 312                         if (get_index(lacp_rate_tbl, *argv) < 0)
 313                                 invarg("invalid lacp_rate", *argv);
 314
 315                         lacp_rate = get_index(lacp_rate_tbl, *argv);
 316                         addattr8(n, 1024, IFLA_BOND_AD_LACP_RATE, lacp_rate);
 317                 } else if (matches(*argv, "ad_select") == 0) {
 318                         NEXT_ARG();
 319                         if (get_index(ad_select_tbl, *argv) < 0)
 320                                 invarg("invalid ad_select", *argv);
 321
 322                         ad_select = get_index(ad_select_tbl, *argv);
 323                         addattr8(n, 1024, IFLA_BOND_AD_SELECT, ad_select);
 324                 } else if (matches(*argv, "ad_user_port_key") == 0) {
 325                         NEXT_ARG();
 326                         if (get_u16(&ad_user_port_key, *argv, 0))
 327                                 invarg("invalid ad_user_port_key", *argv);
 328
 329                         addattr16(n, 1024, IFLA_BOND_AD_USER_PORT_KEY,
 330                                   ad_user_port_key);
 331                 } else if (matches(*argv, "ad_actor_sys_prio") == 0) {
 332                         NEXT_ARG();
 333                         if (get_u16(&ad_actor_sys_prio, *argv, 0))
 334                                 invarg("invalid ad_actor_sys_prio", *argv);
 335
 336                         addattr16(n, 1024, IFLA_BOND_AD_ACTOR_SYS_PRIO,
 337                                   ad_actor_sys_prio);
 338                 } else if (matches(*argv, "ad_actor_system") == 0) {
 339                         int len;
 340                         char abuf[32];
 341
 342                         NEXT_ARG();
 343                         len = ll_addr_a2n(abuf, sizeof(abuf), *argv);
 344                         if (len < 0)
 345                                 return -1;
 346                         addattr_l(n, 1024, IFLA_BOND_AD_ACTOR_SYSTEM,
 347                                   abuf, len);
 348                 } else if (matches(*argv, "tlb_dynamic_lb") == 0) {
 349                         NEXT_ARG();
 350                         if (get_u8(&tlb_dynamic_lb, *argv, 0)) {
 351                                 invarg("invalid tlb_dynamic_lb", *argv);
 352                                 return -1;
 353                         }
 354                         addattr8(n, 1024, IFLA_BOND_TLB_DYNAMIC_LB,
 355                                  tlb_dynamic_lb);
 356                 } else if (matches(*argv, "help") == 0) {
 357                         explain();
 358                         return -1;
 359                 } else {
 360                         fprintf(stderr, "bond: unknown command \"%s\"?\n", *argv);
 361                         explain();
 362                         return -1;
 363                 }
 364                 argc--, argv++;
 365         }
 366
 367         return 0;
 368 }
 369
 370 static void bond_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
 371 {
 372         unsigned int ifindex;
 373
 374         if (!tb)
 375                 return;
 376
 377         if (tb[IFLA_BOND_MODE]) {
 378                 const char *mode = get_name(mode_tbl,
 379                         rta_getattr_u8(tb[IFLA_BOND_MODE]));
 380                 fprintf(f, "mode %s ", mode);
 381         }
 382
 383         if (tb[IFLA_BOND_ACTIVE_SLAVE] &&
 384             (ifindex = rta_getattr_u32(tb[IFLA_BOND_ACTIVE_SLAVE]))) {
 385                 char buf[IFNAMSIZ];
 386                 const char *n = if_indextoname(ifindex, buf);
 387
 388                 if (n)
 389                         fprintf(f, "active_slave %s ", n);
 390                 else
 391                         fprintf(f, "active_slave %u ", ifindex);
 392         }
 393
 394         if (tb[IFLA_BOND_MIIMON])
 395                 fprintf(f, "miimon %u ", rta_getattr_u32(tb[IFLA_BOND_MIIMON]));
 396
 397         if (tb[IFLA_BOND_UPDELAY])
 398                 fprintf(f, "updelay %u ", rta_getattr_u32(tb[IFLA_BOND_UPDELAY]));
 399
 400         if (tb[IFLA_BOND_DOWNDELAY])
 401                 fprintf(f, "downdelay %u ",
 402                         rta_getattr_u32(tb[IFLA_BOND_DOWNDELAY]));
 403
 404         if (tb[IFLA_BOND_USE_CARRIER])
 405                 fprintf(f, "use_carrier %u ",
 406                         rta_getattr_u8(tb[IFLA_BOND_USE_CARRIER]));
 407
 408         if (tb[IFLA_BOND_ARP_INTERVAL])
 409                 fprintf(f, "arp_interval %u ",
 410                         rta_getattr_u32(tb[IFLA_BOND_ARP_INTERVAL]));
 411
 412         if (tb[IFLA_BOND_ARP_IP_TARGET]) {
 413                 struct rtattr *iptb[BOND_MAX_ARP_TARGETS + 1];
 414                 char buf[INET_ADDRSTRLEN];
 415                 int i;
 416
 417                 parse_rtattr_nested(iptb, BOND_MAX_ARP_TARGETS,
 418                         tb[IFLA_BOND_ARP_IP_TARGET]);
 419
 420                 if (iptb[0])
 421                         fprintf(f, "arp_ip_target ");
 422
 423                 for (i = 0; i < BOND_MAX_ARP_TARGETS; i++) {
 424                         if (iptb[i])
 425                                 fprintf(f, "%s",
 426                                         rt_addr_n2a(AF_INET,
 427                                                     RTA_PAYLOAD(iptb[i]),
 428                                                     RTA_DATA(iptb[i]),
 429                                                     buf,
 430                                                     INET_ADDRSTRLEN));
 431                         if (i < BOND_MAX_ARP_TARGETS-1 && iptb[i+1])
 432                                 fprintf(f, ",");
 433                 }
 434
 435                 if (iptb[0])
 436                         fprintf(f, " ");
 437         }
 438
 439         if (tb[IFLA_BOND_ARP_VALIDATE]) {
 440                 const char *arp_validate = get_name(arp_validate_tbl,
 441                         rta_getattr_u32(tb[IFLA_BOND_ARP_VALIDATE]));
 442                 fprintf(f, "arp_validate %s ", arp_validate);
 443         }
 444
 445         if (tb[IFLA_BOND_ARP_ALL_TARGETS]) {
 446                 const char *arp_all_targets = get_name(arp_all_targets_tbl,
 447                         rta_getattr_u32(tb[IFLA_BOND_ARP_ALL_TARGETS]));
 448                 fprintf(f, "arp_all_targets %s ", arp_all_targets);
 449         }
 450
 451         if (tb[IFLA_BOND_PRIMARY] &&
 452             (ifindex = rta_getattr_u32(tb[IFLA_BOND_PRIMARY]))) {
 453                 char buf[IFNAMSIZ];
 454                 const char *n = if_indextoname(ifindex, buf);
 455
 456                 if (n)
 457                         fprintf(f, "primary %s ", n);
 458                 else
 459                         fprintf(f, "primary %u ", ifindex);
 460         }
 461
 462         if (tb[IFLA_BOND_PRIMARY_RESELECT]) {
 463                 const char *primary_reselect = get_name(primary_reselect_tbl,
 464                         rta_getattr_u8(tb[IFLA_BOND_PRIMARY_RESELECT]));
 465                 fprintf(f, "primary_reselect %s ", primary_reselect);
 466         }
 467
 468         if (tb[IFLA_BOND_FAIL_OVER_MAC]) {
 469                 const char *fail_over_mac = get_name(fail_over_mac_tbl,
 470                         rta_getattr_u8(tb[IFLA_BOND_FAIL_OVER_MAC]));
 471                 fprintf(f, "fail_over_mac %s ", fail_over_mac);
 472         }
 473
 474         if (tb[IFLA_BOND_XMIT_HASH_POLICY]) {
 475                 const char *xmit_hash_policy = get_name(xmit_hash_policy_tbl,
 476                         rta_getattr_u8(tb[IFLA_BOND_XMIT_HASH_POLICY]));
 477                 fprintf(f, "xmit_hash_policy %s ", xmit_hash_policy);
 478         }
 479
 480         if (tb[IFLA_BOND_RESEND_IGMP])
 481                 fprintf(f, "resend_igmp %u ",
 482                         rta_getattr_u32(tb[IFLA_BOND_RESEND_IGMP]));
 483
 484         if (tb[IFLA_BOND_NUM_PEER_NOTIF])
 485                 fprintf(f, "num_grat_arp %u ",
 486                         rta_getattr_u8(tb[IFLA_BOND_NUM_PEER_NOTIF]));
 487
 488         if (tb[IFLA_BOND_ALL_SLAVES_ACTIVE])
 489                 fprintf(f, "all_slaves_active %u ",
 490                         rta_getattr_u8(tb[IFLA_BOND_ALL_SLAVES_ACTIVE]));
 491
 492         if (tb[IFLA_BOND_MIN_LINKS])
 493                 fprintf(f, "min_links %u ",
 494                         rta_getattr_u32(tb[IFLA_BOND_MIN_LINKS]));
 495
 496         if (tb[IFLA_BOND_LP_INTERVAL])
 497                 fprintf(f, "lp_interval %u ",
 498                         rta_getattr_u32(tb[IFLA_BOND_LP_INTERVAL]));
 499
 500         if (tb[IFLA_BOND_PACKETS_PER_SLAVE])
 501                 fprintf(f, "packets_per_slave %u ",
 502                         rta_getattr_u32(tb[IFLA_BOND_PACKETS_PER_SLAVE]));
 503
 504         if (tb[IFLA_BOND_AD_LACP_RATE]) {
 505                 const char *lacp_rate = get_name(lacp_rate_tbl,
 506                         rta_getattr_u8(tb[IFLA_BOND_AD_LACP_RATE]));
 507                 fprintf(f, "lacp_rate %s ", lacp_rate);
 508         }
 509
 510         if (tb[IFLA_BOND_AD_SELECT]) {
 511                 const char *ad_select = get_name(ad_select_tbl,
 512                         rta_getattr_u8(tb[IFLA_BOND_AD_SELECT]));
 513                 fprintf(f, "ad_select %s ", ad_select);
 514         }
 515
 516         if (tb[IFLA_BOND_AD_INFO]) {
 517                 struct rtattr *adtb[IFLA_BOND_AD_INFO_MAX + 1];
 518
 519                 parse_rtattr_nested(adtb, IFLA_BOND_AD_INFO_MAX,
 520                         tb[IFLA_BOND_AD_INFO]);
 521
 522                 if (adtb[IFLA_BOND_AD_INFO_AGGREGATOR])
 523                         fprintf(f, "ad_aggregator %d ",
 524                           rta_getattr_u16(adtb[IFLA_BOND_AD_INFO_AGGREGATOR]));
 525
 526                 if (adtb[IFLA_BOND_AD_INFO_NUM_PORTS])
 527                         fprintf(f, "ad_num_ports %d ",
 528                           rta_getattr_u16(adtb[IFLA_BOND_AD_INFO_NUM_PORTS]));
 529
 530                 if (adtb[IFLA_BOND_AD_INFO_ACTOR_KEY])
 531                         fprintf(f, "ad_actor_key %d ",
 532                           rta_getattr_u16(adtb[IFLA_BOND_AD_INFO_ACTOR_KEY]));
 533
 534                 if (adtb[IFLA_BOND_AD_INFO_PARTNER_KEY])
 535                         fprintf(f, "ad_partner_key %d ",
 536                           rta_getattr_u16(adtb[IFLA_BOND_AD_INFO_PARTNER_KEY]));
 537
 538                 if (adtb[IFLA_BOND_AD_INFO_PARTNER_MAC]) {
 539                         unsigned char *p =
 540                                 RTA_DATA(adtb[IFLA_BOND_AD_INFO_PARTNER_MAC]);
 541                         SPRINT_BUF(b);
 542                         fprintf(f, "ad_partner_mac %s ",
 543                                 ll_addr_n2a(p, ETH_ALEN, 0, b, sizeof(b)));
 544                 }
 545         }
 546
 547         if (tb[IFLA_BOND_AD_ACTOR_SYS_PRIO]) {
 548                 fprintf(f, "ad_actor_sys_prio %u ",
 549                         rta_getattr_u16(tb[IFLA_BOND_AD_ACTOR_SYS_PRIO]));
 550         }
 551
 552         if (tb[IFLA_BOND_AD_USER_PORT_KEY]) {
 553                 fprintf(f, "ad_user_port_key %u ",
 554                         rta_getattr_u16(tb[IFLA_BOND_AD_USER_PORT_KEY]));
 555         }
 556
 557         if (tb[IFLA_BOND_AD_ACTOR_SYSTEM]) {
 558                 /* We assume the l2 address is an Ethernet MAC address */
 559                 SPRINT_BUF(b1);
 560                 fprintf(f, "ad_actor_system %s ",
 561                         ll_addr_n2a(RTA_DATA(tb[IFLA_BOND_AD_ACTOR_SYSTEM]),
 562                                     RTA_PAYLOAD(tb[IFLA_BOND_AD_ACTOR_SYSTEM]),
 563                                     1 /*ARPHDR_ETHER*/, b1, sizeof(b1)));
 564         }
 565
 566         if (tb[IFLA_BOND_TLB_DYNAMIC_LB]) {
 567                 fprintf(f, "tlb_dynamic_lb %u ",
 568                         rta_getattr_u8(tb[IFLA_BOND_TLB_DYNAMIC_LB]));
 569         }
 570 }
 571
 572 static void bond_print_help(struct link_util *lu, int argc, char **argv,
 573         FILE *f)
 574 {
 575         print_explain(f);
 576 }
 577
 578 struct link_util bond_link_util = {
 579         .id             = "bond",
 580         .maxattr        = IFLA_BOND_MAX,
 581         .parse_opt      = bond_parse_opt,
 582         .print_opt      = bond_print_opt,
 583         .print_help     = bond_print_help,
 584 };