2 * iplink_bond.c Bonding device support
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.
9 * Authors: Jiri Pirko <jiri@resnulli.us>
10 * Scott Feldman <sfeldma@cumulusnetworks.com>
16 #include <linux/if_link.h>
17 #include <linux/if_ether.h>
22 #include "ip_common.h"
24 #define BOND_MAX_ARP_TARGETS 16
26 static const char *mode_tbl
[] = {
37 static const char *arp_validate_tbl
[] = {
45 static const char *arp_all_targets_tbl
[] = {
51 static const char *primary_reselect_tbl
[] = {
58 static const char *fail_over_mac_tbl
[] = {
65 static const char *xmit_hash_policy_tbl
[] = {
74 static const char *lacp_rate_tbl
[] = {
80 static const char *ad_select_tbl
[] = {
87 static const char *get_name(const char **tbl
, int index
)
91 for (i
= 0; tbl
[i
]; i
++)
98 static int get_index(const char **tbl
, char *name
)
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
++)
108 for (i
= 0; tbl
[i
]; i
++)
109 if (strcmp(tbl
[i
], name
) == 0)
115 static void print_explain(FILE *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 " [ lacp_rate LACP_RATE ]\n"
137 " [ ad_select AD_SELECT ]\n"
139 "BONDMODE := balance-rr|active-backup|balance-xor|broadcast|802.3ad|balance-tlb|balance-alb\n"
140 "ARP_VALIDATE := none|active|backup|all\n"
141 "ARP_ALL_TARGETS := any|all\n"
142 "PRIMARY_RESELECT := always|better|failure\n"
143 "FAIL_OVER_MAC := none|active|follow\n"
144 "XMIT_HASH_POLICY := layer2|layer2+3|layer3+4\n"
145 "LACP_RATE := slow|fast\n"
146 "AD_SELECT := stable|bandwidth|count\n"
150 static void explain(void)
152 print_explain(stderr
);
155 static int bond_parse_opt(struct link_util
*lu
, int argc
, char **argv
,
158 __u8 mode
, use_carrier
, primary_reselect
, fail_over_mac
;
159 __u8 xmit_hash_policy
, num_peer_notif
, all_slaves_active
;
160 __u8 lacp_rate
, ad_select
;
161 __u32 miimon
, updelay
, downdelay
, arp_interval
, arp_validate
;
162 __u32 arp_all_targets
, resend_igmp
, min_links
, lp_interval
;
163 __u32 packets_per_slave
;
167 if (matches(*argv
, "mode") == 0) {
169 if (get_index(mode_tbl
, *argv
) < 0) {
170 invarg("invalid mode", *argv
);
173 mode
= get_index(mode_tbl
, *argv
);
174 addattr8(n
, 1024, IFLA_BOND_MODE
, mode
);
175 } else if (matches(*argv
, "active_slave") == 0) {
177 ifindex
= if_nametoindex(*argv
);
180 addattr32(n
, 1024, IFLA_BOND_ACTIVE_SLAVE
, ifindex
);
181 } else if (matches(*argv
, "clear_active_slave") == 0) {
182 addattr32(n
, 1024, IFLA_BOND_ACTIVE_SLAVE
, 0);
183 } else if (matches(*argv
, "miimon") == 0) {
185 if (get_u32(&miimon
, *argv
, 0)) {
186 invarg("invalid miimon", *argv
);
189 addattr32(n
, 1024, IFLA_BOND_MIIMON
, miimon
);
190 } else if (matches(*argv
, "updelay") == 0) {
192 if (get_u32(&updelay
, *argv
, 0)) {
193 invarg("invalid updelay", *argv
);
196 addattr32(n
, 1024, IFLA_BOND_UPDELAY
, updelay
);
197 } else if (matches(*argv
, "downdelay") == 0) {
199 if (get_u32(&downdelay
, *argv
, 0)) {
200 invarg("invalid downdelay", *argv
);
203 addattr32(n
, 1024, IFLA_BOND_DOWNDELAY
, downdelay
);
204 } else if (matches(*argv
, "use_carrier") == 0) {
206 if (get_u8(&use_carrier
, *argv
, 0)) {
207 invarg("invalid use_carrier", *argv
);
210 addattr8(n
, 1024, IFLA_BOND_USE_CARRIER
, use_carrier
);
211 } else if (matches(*argv
, "arp_interval") == 0) {
213 if (get_u32(&arp_interval
, *argv
, 0)) {
214 invarg("invalid arp_interval", *argv
);
217 addattr32(n
, 1024, IFLA_BOND_ARP_INTERVAL
, arp_interval
);
218 } else if (matches(*argv
, "arp_ip_target") == 0) {
219 struct rtattr
* nest
= addattr_nest(n
, 1024,
220 IFLA_BOND_ARP_IP_TARGET
);
223 char *targets
= strdupa(*argv
);
224 char *target
= strtok(targets
, ",");
227 for(i
= 0; target
&& i
< BOND_MAX_ARP_TARGETS
; i
++) {
228 __u32 addr
= get_addr32(target
);
229 addattr32(n
, 1024, i
, addr
);
230 target
= strtok(NULL
, ",");
232 addattr_nest_end(n
, nest
);
234 addattr_nest_end(n
, nest
);
235 } else if (matches(*argv
, "arp_validate") == 0) {
237 if (get_index(arp_validate_tbl
, *argv
) < 0) {
238 invarg("invalid arp_validate", *argv
);
241 arp_validate
= get_index(arp_validate_tbl
, *argv
);
242 addattr32(n
, 1024, IFLA_BOND_ARP_VALIDATE
, arp_validate
);
243 } else if (matches(*argv
, "arp_all_targets") == 0) {
245 if (get_index(arp_all_targets_tbl
, *argv
) < 0) {
246 invarg("invalid arp_all_targets", *argv
);
249 arp_all_targets
= get_index(arp_all_targets_tbl
, *argv
);
250 addattr32(n
, 1024, IFLA_BOND_ARP_ALL_TARGETS
, arp_all_targets
);
251 } else if (matches(*argv
, "primary") == 0) {
253 ifindex
= if_nametoindex(*argv
);
256 addattr32(n
, 1024, IFLA_BOND_PRIMARY
, ifindex
);
257 } else if (matches(*argv
, "primary_reselect") == 0) {
259 if (get_index(primary_reselect_tbl
, *argv
) < 0) {
260 invarg("invalid primary_reselect", *argv
);
263 primary_reselect
= get_index(primary_reselect_tbl
, *argv
);
264 addattr8(n
, 1024, IFLA_BOND_PRIMARY_RESELECT
,
266 } else if (matches(*argv
, "fail_over_mac") == 0) {
268 if (get_index(fail_over_mac_tbl
, *argv
) < 0) {
269 invarg("invalid fail_over_mac", *argv
);
272 fail_over_mac
= get_index(fail_over_mac_tbl
, *argv
);
273 addattr8(n
, 1024, IFLA_BOND_FAIL_OVER_MAC
,
275 } else if (matches(*argv
, "xmit_hash_policy") == 0) {
277 if (get_index(xmit_hash_policy_tbl
, *argv
) < 0) {
278 invarg("invalid xmit_hash_policy", *argv
);
281 xmit_hash_policy
= get_index(xmit_hash_policy_tbl
, *argv
);
282 addattr8(n
, 1024, IFLA_BOND_XMIT_HASH_POLICY
,
284 } else if (matches(*argv
, "resend_igmp") == 0) {
286 if (get_u32(&resend_igmp
, *argv
, 0)) {
287 invarg("invalid resend_igmp", *argv
);
290 addattr32(n
, 1024, IFLA_BOND_RESEND_IGMP
, resend_igmp
);
291 } else if (matches(*argv
, "num_grat_arp") == 0 ||
292 matches(*argv
, "num_unsol_na") == 0) {
294 if (get_u8(&num_peer_notif
, *argv
, 0)) {
295 invarg("invalid num_grat_arp|num_unsol_na",
299 addattr8(n
, 1024, IFLA_BOND_NUM_PEER_NOTIF
,
301 } else if (matches(*argv
, "all_slaves_active") == 0) {
303 if (get_u8(&all_slaves_active
, *argv
, 0)) {
304 invarg("invalid all_slaves_active", *argv
);
307 addattr8(n
, 1024, IFLA_BOND_ALL_SLAVES_ACTIVE
,
309 } else if (matches(*argv
, "min_links") == 0) {
311 if (get_u32(&min_links
, *argv
, 0)) {
312 invarg("invalid min_links", *argv
);
315 addattr32(n
, 1024, IFLA_BOND_MIN_LINKS
, min_links
);
316 } else if (matches(*argv
, "lp_interval") == 0) {
318 if (get_u32(&lp_interval
, *argv
, 0)) {
319 invarg("invalid lp_interval", *argv
);
322 addattr32(n
, 1024, IFLA_BOND_LP_INTERVAL
, lp_interval
);
323 } else if (matches(*argv
, "packets_per_slave") == 0) {
325 if (get_u32(&packets_per_slave
, *argv
, 0)) {
326 invarg("invalid packets_per_slave", *argv
);
329 addattr32(n
, 1024, IFLA_BOND_PACKETS_PER_SLAVE
,
331 } else if (matches(*argv
, "lacp_rate") == 0) {
333 if (get_index(lacp_rate_tbl
, *argv
) < 0) {
334 invarg("invalid lacp_rate", *argv
);
337 lacp_rate
= get_index(lacp_rate_tbl
, *argv
);
338 addattr8(n
, 1024, IFLA_BOND_AD_LACP_RATE
, lacp_rate
);
339 } else if (matches(*argv
, "ad_select") == 0) {
341 if (get_index(ad_select_tbl
, *argv
) < 0) {
342 invarg("invalid ad_select", *argv
);
345 ad_select
= get_index(ad_select_tbl
, *argv
);
346 addattr8(n
, 1024, IFLA_BOND_AD_SELECT
, ad_select
);
347 } else if (matches(*argv
, "help") == 0) {
351 fprintf(stderr
, "bond: unknown command \"%s\"?\n", *argv
);
361 static void bond_print_opt(struct link_util
*lu
, FILE *f
, struct rtattr
*tb
[])
368 if (tb
[IFLA_BOND_MODE
]) {
369 const char *mode
= get_name(mode_tbl
,
370 rta_getattr_u8(tb
[IFLA_BOND_MODE
]));
371 fprintf(f
, "mode %s ", mode
);
374 if (tb
[IFLA_BOND_ACTIVE_SLAVE
] &&
375 (ifindex
= rta_getattr_u32(tb
[IFLA_BOND_ACTIVE_SLAVE
]))) {
377 const char *n
= if_indextoname(ifindex
, buf
);
380 fprintf(f
, "active_slave %s ", n
);
382 fprintf(f
, "active_slave %u ", ifindex
);
385 if (tb
[IFLA_BOND_MIIMON
])
386 fprintf(f
, "miimon %u ", rta_getattr_u32(tb
[IFLA_BOND_MIIMON
]));
388 if (tb
[IFLA_BOND_UPDELAY
])
389 fprintf(f
, "updelay %u ", rta_getattr_u32(tb
[IFLA_BOND_UPDELAY
]));
391 if (tb
[IFLA_BOND_DOWNDELAY
])
392 fprintf(f
, "downdelay %u ",
393 rta_getattr_u32(tb
[IFLA_BOND_DOWNDELAY
]));
395 if (tb
[IFLA_BOND_USE_CARRIER
])
396 fprintf(f
, "use_carrier %u ",
397 rta_getattr_u8(tb
[IFLA_BOND_USE_CARRIER
]));
399 if (tb
[IFLA_BOND_ARP_INTERVAL
])
400 fprintf(f
, "arp_interval %u ",
401 rta_getattr_u32(tb
[IFLA_BOND_ARP_INTERVAL
]));
403 if (tb
[IFLA_BOND_ARP_IP_TARGET
]) {
404 struct rtattr
*iptb
[BOND_MAX_ARP_TARGETS
+ 1];
405 char buf
[INET_ADDRSTRLEN
];
408 parse_rtattr_nested(iptb
, BOND_MAX_ARP_TARGETS
,
409 tb
[IFLA_BOND_ARP_IP_TARGET
]);
412 fprintf(f
, "arp_ip_target ");
414 for (i
= 0; i
< BOND_MAX_ARP_TARGETS
; i
++) {
421 if (i
< BOND_MAX_ARP_TARGETS
-1 && iptb
[i
+1])
429 if (tb
[IFLA_BOND_ARP_VALIDATE
]) {
430 const char *arp_validate
= get_name(arp_validate_tbl
,
431 rta_getattr_u32(tb
[IFLA_BOND_ARP_VALIDATE
]));
432 fprintf(f
, "arp_validate %s ", arp_validate
);
435 if (tb
[IFLA_BOND_ARP_ALL_TARGETS
]) {
436 const char *arp_all_targets
= get_name(arp_all_targets_tbl
,
437 rta_getattr_u32(tb
[IFLA_BOND_ARP_ALL_TARGETS
]));
438 fprintf(f
, "arp_all_targets %s ", arp_all_targets
);
441 if (tb
[IFLA_BOND_PRIMARY
] &&
442 (ifindex
= rta_getattr_u32(tb
[IFLA_BOND_PRIMARY
]))) {
444 const char *n
= if_indextoname(ifindex
, buf
);
447 fprintf(f
, "primary %s ", n
);
449 fprintf(f
, "primary %u ", ifindex
);
452 if (tb
[IFLA_BOND_PRIMARY_RESELECT
]) {
453 const char *primary_reselect
= get_name(primary_reselect_tbl
,
454 rta_getattr_u8(tb
[IFLA_BOND_PRIMARY_RESELECT
]));
455 fprintf(f
, "primary_reselect %s ", primary_reselect
);
458 if (tb
[IFLA_BOND_FAIL_OVER_MAC
]) {
459 const char *fail_over_mac
= get_name(fail_over_mac_tbl
,
460 rta_getattr_u8(tb
[IFLA_BOND_FAIL_OVER_MAC
]));
461 fprintf(f
, "fail_over_mac %s ", fail_over_mac
);
464 if (tb
[IFLA_BOND_XMIT_HASH_POLICY
]) {
465 const char *xmit_hash_policy
= get_name(xmit_hash_policy_tbl
,
466 rta_getattr_u8(tb
[IFLA_BOND_XMIT_HASH_POLICY
]));
467 fprintf(f
, "xmit_hash_policy %s ", xmit_hash_policy
);
470 if (tb
[IFLA_BOND_RESEND_IGMP
])
471 fprintf(f
, "resend_igmp %u ",
472 rta_getattr_u32(tb
[IFLA_BOND_RESEND_IGMP
]));
474 if (tb
[IFLA_BOND_NUM_PEER_NOTIF
])
475 fprintf(f
, "num_grat_arp %u ",
476 rta_getattr_u8(tb
[IFLA_BOND_NUM_PEER_NOTIF
]));
478 if (tb
[IFLA_BOND_ALL_SLAVES_ACTIVE
])
479 fprintf(f
, "all_slaves_active %u ",
480 rta_getattr_u8(tb
[IFLA_BOND_ALL_SLAVES_ACTIVE
]));
482 if (tb
[IFLA_BOND_MIN_LINKS
])
483 fprintf(f
, "min_links %u ",
484 rta_getattr_u32(tb
[IFLA_BOND_MIN_LINKS
]));
486 if (tb
[IFLA_BOND_LP_INTERVAL
])
487 fprintf(f
, "lp_interval %u ",
488 rta_getattr_u32(tb
[IFLA_BOND_LP_INTERVAL
]));
490 if (tb
[IFLA_BOND_PACKETS_PER_SLAVE
])
491 fprintf(f
, "packets_per_slave %u ",
492 rta_getattr_u32(tb
[IFLA_BOND_PACKETS_PER_SLAVE
]));
494 if (tb
[IFLA_BOND_AD_LACP_RATE
]) {
495 const char *lacp_rate
= get_name(lacp_rate_tbl
,
496 rta_getattr_u8(tb
[IFLA_BOND_AD_LACP_RATE
]));
497 fprintf(f
, "lacp_rate %s ", lacp_rate
);
500 if (tb
[IFLA_BOND_AD_SELECT
]) {
501 const char *ad_select
= get_name(ad_select_tbl
,
502 rta_getattr_u8(tb
[IFLA_BOND_AD_SELECT
]));
503 fprintf(f
, "ad_select %s ", ad_select
);
506 if (tb
[IFLA_BOND_AD_INFO
]) {
507 struct rtattr
*adtb
[IFLA_BOND_AD_INFO_MAX
+ 1];
509 parse_rtattr_nested(adtb
, IFLA_BOND_AD_INFO_MAX
,
510 tb
[IFLA_BOND_AD_INFO
]);
512 if (adtb
[IFLA_BOND_AD_INFO_AGGREGATOR
])
513 fprintf(f
, "ad_aggregator %d ",
514 rta_getattr_u16(adtb
[IFLA_BOND_AD_INFO_AGGREGATOR
]));
516 if (adtb
[IFLA_BOND_AD_INFO_NUM_PORTS
])
517 fprintf(f
, "ad_num_ports %d ",
518 rta_getattr_u16(adtb
[IFLA_BOND_AD_INFO_NUM_PORTS
]));
520 if (adtb
[IFLA_BOND_AD_INFO_ACTOR_KEY
])
521 fprintf(f
, "ad_actor_key %d ",
522 rta_getattr_u16(adtb
[IFLA_BOND_AD_INFO_ACTOR_KEY
]));
524 if (adtb
[IFLA_BOND_AD_INFO_PARTNER_KEY
])
525 fprintf(f
, "ad_partner_key %d ",
526 rta_getattr_u16(adtb
[IFLA_BOND_AD_INFO_PARTNER_KEY
]));
528 if (adtb
[IFLA_BOND_AD_INFO_PARTNER_MAC
]) {
530 RTA_DATA(adtb
[IFLA_BOND_AD_INFO_PARTNER_MAC
]);
532 fprintf(f
, "ad_partner_mac %s ",
533 ll_addr_n2a(p
, ETH_ALEN
, 0, b
, sizeof(b
)));
538 static void bond_print_help(struct link_util
*lu
, int argc
, char **argv
,
544 struct link_util bond_link_util
= {
546 .maxattr
= IFLA_BOND_MAX
,
547 .parse_opt
= bond_parse_opt
,
548 .print_opt
= bond_print_opt
,
549 .print_help
= bond_print_help
,