21 #include <netlink-private/netlink.h> 22 #include <netlink/netlink.h> 23 #include <netlink/attr.h> 24 #include <netlink/utils.h> 25 #include <netlink/object.h> 26 #include <netlink/hashtable.h> 27 #include <netlink/data.h> 28 #include <netlink/route/rtnl.h> 29 #include <netlink/route/link.h> 30 #include <netlink-private/route/link/api.h> 31 #include <netlink-private/route/link/sriov.h> 32 #include <netlink-private/utils.h> 35 #define LINK_ATTR_MTU (1 << 0) 36 #define LINK_ATTR_LINK (1 << 1) 37 #define LINK_ATTR_TXQLEN (1 << 2) 38 #define LINK_ATTR_WEIGHT (1 << 3) 39 #define LINK_ATTR_MASTER (1 << 4) 40 #define LINK_ATTR_QDISC (1 << 5) 41 #define LINK_ATTR_MAP (1 << 6) 42 #define LINK_ATTR_ADDR (1 << 7) 43 #define LINK_ATTR_BRD (1 << 8) 44 #define LINK_ATTR_FLAGS (1 << 9) 45 #define LINK_ATTR_IFNAME (1 << 10) 46 #define LINK_ATTR_IFINDEX (1 << 11) 47 #define LINK_ATTR_FAMILY (1 << 12) 48 #define LINK_ATTR_ARPTYPE (1 << 13) 49 #define LINK_ATTR_STATS (1 << 14) 50 #define LINK_ATTR_CHANGE (1 << 15) 51 #define LINK_ATTR_OPERSTATE (1 << 16) 52 #define LINK_ATTR_LINKMODE (1 << 17) 53 #define LINK_ATTR_LINKINFO (1 << 18) 54 #define LINK_ATTR_IFALIAS (1 << 19) 55 #define LINK_ATTR_NUM_VF (1 << 20) 56 #define LINK_ATTR_PROMISCUITY (1 << 21) 57 #define LINK_ATTR_NUM_TX_QUEUES (1 << 22) 58 #define LINK_ATTR_NUM_RX_QUEUES (1 << 23) 59 #define LINK_ATTR_GROUP (1 << 24) 60 #define LINK_ATTR_CARRIER (1 << 25) 61 #define LINK_ATTR_PROTINFO (1 << 26) 62 #define LINK_ATTR_AF_SPEC (1 << 27) 63 #define LINK_ATTR_PHYS_PORT_ID (1 << 28) 64 #define LINK_ATTR_NS_FD (1 << 29) 65 #define LINK_ATTR_NS_PID (1 << 30) 67 #define LINK_ATTR_LINK_NETNSID ((uint64_t) 1 << 32) 68 #define LINK_ATTR_VF_LIST ((uint64_t) 1 << 33) 69 #define LINK_ATTR_CARRIER_CHANGES ((uint64_t) 1 << 34) 70 #define LINK_ATTR_PHYS_PORT_NAME ((uint64_t) 1 << 35) 71 #define LINK_ATTR_PHYS_SWITCH_ID ((uint64_t) 1 << 36) 72 #define LINK_ATTR_GSO_MAX_SEGS ((uint64_t) 1 << 37) 73 #define LINK_ATTR_GSO_MAX_SIZE ((uint64_t) 1 << 38) 75 static struct nl_cache_ops rtnl_link_ops;
76 static struct nl_object_ops link_obj_ops;
79 struct rtnl_link *link_lookup(
struct nl_cache *cache,
int ifindex)
82 cache = __nl_cache_mngt_require(
"route/link");
90 static struct rtnl_link_af_ops *af_lookup_and_alloc(
struct rtnl_link *link,
93 struct rtnl_link_af_ops *af_ops;
108 static int af_free(
struct rtnl_link *link,
struct rtnl_link_af_ops *ops,
109 void *data,
void *arg)
112 ops->ao_free(link, data);
119 static int af_request_type(
int af_type)
121 struct rtnl_link_af_ops *ops;
124 if (ops && ops->ao_override_rtm)
130 static int af_clone(
struct rtnl_link *link,
struct rtnl_link_af_ops *ops,
131 void *data,
void *arg)
136 !(dst->l_af_data[ops->ao_family] = ops->ao_clone(dst, data)))
142 static int af_fill(
struct rtnl_link *link,
struct rtnl_link_af_ops *ops,
143 void *data,
void *arg)
145 struct nl_msg *msg = arg;
146 struct nlattr *af_attr = NULL;
149 if (!ops->ao_fill_af)
152 if (!ops->ao_fill_af_no_nest)
156 if ((err = ops->ao_fill_af(link, arg, data)) < 0)
159 if (!ops->ao_fill_af_no_nest)
165 static int af_fill_pi(
struct rtnl_link *link,
struct rtnl_link_af_ops *ops,
166 void *data,
void *arg)
168 struct nl_msg *msg = arg;
169 struct nlattr *pi_attr;
170 int err, pi_type = IFLA_PROTINFO;
172 if (!ops->ao_fill_pi)
175 if (ops->ao_fill_pi_flags > 0)
176 pi_type |= ops->ao_fill_pi_flags;
181 if ((err = ops->ao_fill_pi(link, arg, data)) < 0)
189 static int af_dump_line(
struct rtnl_link *link,
struct rtnl_link_af_ops *ops,
190 void *data,
void *arg)
200 static int af_dump_details(
struct rtnl_link *link,
struct rtnl_link_af_ops *ops,
201 void *data,
void *arg)
211 static int af_dump_stats(
struct rtnl_link *link,
struct rtnl_link_af_ops *ops,
212 void *data,
void *arg)
222 static int do_foreach_af(
struct rtnl_link *link,
224 struct rtnl_link_af_ops *,
void *,
void *),
229 for (i = 0; i < AF_MAX; i++) {
230 if (link->l_af_data[i]) {
231 struct rtnl_link_af_ops *ops;
236 err = cb(link, ops, link->l_af_data[i], arg);
248 static void release_link_info(
struct rtnl_link *link)
250 struct rtnl_link_info_ops *io = link->l_info_ops;
257 BUG_ON(link->l_info);
260 link->l_info_ops = NULL;
264 static void link_free_data(
struct nl_object *c)
266 struct rtnl_link *link = nl_object_priv(c);
269 release_link_info(link);
277 free(link->l_ifalias);
278 free(link->l_info_kind);
280 do_foreach_af(link, af_free, NULL);
285 if (link->ce_mask & LINK_ATTR_VF_LIST)
286 rtnl_link_sriov_free_data(link);
290 static int link_clone(
struct nl_object *_dst,
struct nl_object *_src)
292 struct rtnl_link *dst = nl_object_priv(_dst);
293 struct rtnl_link *src = nl_object_priv(_src);
305 if (!(dst->l_ifalias = strdup(src->l_ifalias)))
308 if (src->l_info_kind)
309 if (!(dst->l_info_kind = strdup(src->l_info_kind)))
312 if (src->l_info_ops && src->l_info_ops->io_clone) {
313 err = src->l_info_ops->io_clone(dst, src);
318 if ((err = do_foreach_af(src, af_clone, dst)) < 0)
321 if (src->l_phys_port_id)
322 if (!(dst->l_phys_port_id =
nl_data_clone(src->l_phys_port_id)))
325 if (src->l_phys_switch_id)
326 if (!(dst->l_phys_switch_id =
nl_data_clone(src->l_phys_switch_id)))
329 if (src->ce_mask & LINK_ATTR_VF_LIST)
330 if ((err = rtnl_link_sriov_clone(dst, src)) < 0)
336 struct nla_policy rtln_link_policy[IFLA_MAX+1] = {
338 .maxlen = IFNAMSIZ },
339 [IFLA_MTU] = { .type =
NLA_U32 },
340 [IFLA_TXQLEN] = { .type =
NLA_U32 },
341 [IFLA_LINK] = { .type =
NLA_U32 },
342 [IFLA_WEIGHT] = { .type =
NLA_U32 },
343 [IFLA_MASTER] = { .type =
NLA_U32 },
344 [IFLA_OPERSTATE] = { .type =
NLA_U8 },
345 [IFLA_LINKMODE] = { .type =
NLA_U8 },
348 .maxlen = IFQDISCSIZ },
349 [IFLA_STATS] = { .minlen = _nl_offsetofend (
struct rtnl_link_stats, tx_compressed) },
350 [IFLA_STATS64] = { .minlen = _nl_offsetofend (
struct rtnl_link_stats64, tx_compressed) },
351 [IFLA_MAP] = { .minlen =
sizeof(
struct rtnl_link_ifmap) },
352 [IFLA_IFALIAS] = { .type =
NLA_STRING, .maxlen = IFALIASZ },
353 [IFLA_NUM_VF] = { .type =
NLA_U32 },
356 [IFLA_PROMISCUITY] = { .type =
NLA_U32 },
357 [IFLA_NUM_TX_QUEUES] = { .type =
NLA_U32 },
358 [IFLA_NUM_RX_QUEUES] = { .type =
NLA_U32 },
359 [IFLA_GSO_MAX_SEGS] = { .type =
NLA_U32 },
360 [IFLA_GSO_MAX_SIZE] = { .type =
NLA_U32 },
361 [IFLA_GROUP] = { .type =
NLA_U32 },
362 [IFLA_CARRIER] = { .type =
NLA_U8 },
363 [IFLA_CARRIER_CHANGES] = { .type =
NLA_U32 },
365 [IFLA_PHYS_PORT_NAME] = { .type =
NLA_STRING, .maxlen = IFNAMSIZ },
366 [IFLA_PHYS_SWITCH_ID] = { .type =
NLA_UNSPEC },
367 [IFLA_NET_NS_PID] = { .type =
NLA_U32 },
368 [IFLA_NET_NS_FD] = { .type =
NLA_U32 },
371 static struct nla_policy link_info_policy[IFLA_INFO_MAX+1] = {
377 int rtnl_link_info_parse(
struct rtnl_link *link,
struct nlattr **tb)
379 if (tb[IFLA_IFNAME] == NULL)
380 return -NLE_MISSING_ATTR;
382 nla_strlcpy(link->l_name, tb[IFLA_IFNAME], IFNAMSIZ);
385 if (tb[IFLA_STATS]) {
386 struct rtnl_link_stats *st =
nla_data(tb[IFLA_STATS]);
418 if (
nla_len(tb[IFLA_STATS]) >= _nl_offsetofend (
struct rtnl_link_stats, rx_nohandler))
423 link->ce_mask |= LINK_ATTR_STATS;
426 if (tb[IFLA_STATS64]) {
434 struct rtnl_link_stats64 st = { 0 };
436 nla_memcpy(&st, tb[IFLA_STATS64],
sizeof (st));
470 link->ce_mask |= LINK_ATTR_STATS;
473 if (tb[IFLA_TXQLEN]) {
475 link->ce_mask |= LINK_ATTR_TXQLEN;
480 link->ce_mask |= LINK_ATTR_MTU;
483 if (tb[IFLA_ADDRESS]) {
485 if (link->l_addr == NULL)
489 link->ce_mask |= LINK_ATTR_ADDR;
492 if (tb[IFLA_BROADCAST]) {
495 if (link->l_bcast == NULL)
499 link->ce_mask |= LINK_ATTR_BRD;
504 link->ce_mask |= LINK_ATTR_LINK;
507 if (tb[IFLA_LINK_NETNSID]) {
508 link->l_link_netnsid =
nla_get_s32(tb[IFLA_LINK_NETNSID]);
509 link->ce_mask |= LINK_ATTR_LINK_NETNSID;
512 if (tb[IFLA_WEIGHT]) {
514 link->ce_mask |= LINK_ATTR_WEIGHT;
517 if (tb[IFLA_QDISC]) {
518 nla_strlcpy(link->l_qdisc, tb[IFLA_QDISC], IFQDISCSIZ);
519 link->ce_mask |= LINK_ATTR_QDISC;
524 sizeof(
struct rtnl_link_ifmap));
525 link->ce_mask |= LINK_ATTR_MAP;
528 if (tb[IFLA_MASTER]) {
530 link->ce_mask |= LINK_ATTR_MASTER;
533 if (tb[IFLA_CARRIER]) {
534 link->l_carrier =
nla_get_u8(tb[IFLA_CARRIER]);
535 link->ce_mask |= LINK_ATTR_CARRIER;
538 if (tb[IFLA_CARRIER_CHANGES]) {
539 link->l_carrier_changes =
nla_get_u32(tb[IFLA_CARRIER_CHANGES]);
540 link->ce_mask |= LINK_ATTR_CARRIER_CHANGES;
543 if (tb[IFLA_OPERSTATE]) {
544 link->l_operstate =
nla_get_u8(tb[IFLA_OPERSTATE]);
545 link->ce_mask |= LINK_ATTR_OPERSTATE;
548 if (tb[IFLA_LINKMODE]) {
549 link->l_linkmode =
nla_get_u8(tb[IFLA_LINKMODE]);
550 link->ce_mask |= LINK_ATTR_LINKMODE;
553 if (tb[IFLA_IFALIAS]) {
554 link->l_ifalias = nla_strdup(tb[IFLA_IFALIAS]);
555 if (link->l_ifalias == NULL)
557 link->ce_mask |= LINK_ATTR_IFALIAS;
560 if (tb[IFLA_NET_NS_FD]) {
562 link->ce_mask |= LINK_ATTR_NS_FD;
565 if (tb[IFLA_NET_NS_PID]) {
567 link->ce_mask |= LINK_ATTR_NS_PID;
573 static int link_msg_parser(
struct nl_cache_ops *ops,
struct sockaddr_nl *who,
574 struct nlmsghdr *n,
struct nl_parser_param *pp)
577 struct ifinfomsg *ifi;
578 struct nlattr *tb[IFLA_MAX+1];
579 struct rtnl_link_af_ops *af_ops = NULL;
580 struct rtnl_link_af_ops *af_ops_family;
582 struct nla_policy real_link_policy[IFLA_MAX+1];
584 memcpy(&real_link_policy, rtln_link_policy,
sizeof(rtln_link_policy));
592 link->ce_msgtype = n->nlmsg_type;
594 if (!nlmsg_valid_hdr(n,
sizeof(*ifi))) {
595 err = -NLE_MSG_TOOSHORT;
600 link->l_family = family = ifi->ifi_family;
601 link->l_arptype = ifi->ifi_type;
602 link->l_index = ifi->ifi_index;
603 link->l_flags = ifi->ifi_flags;
604 link->l_change = ifi->ifi_change;
605 link->ce_mask = (LINK_ATTR_IFNAME | LINK_ATTR_FAMILY |
606 LINK_ATTR_ARPTYPE| LINK_ATTR_IFINDEX |
607 LINK_ATTR_FLAGS | LINK_ATTR_CHANGE);
609 if ((af_ops_family = af_ops = af_lookup_and_alloc(link, family))) {
610 if (af_ops->ao_protinfo_policy) {
611 memcpy(&real_link_policy[IFLA_PROTINFO],
612 af_ops->ao_protinfo_policy,
616 link->l_af_ops = af_ops;
619 err =
nlmsg_parse(n,
sizeof(*ifi), tb, IFLA_MAX, real_link_policy);
623 err = rtnl_link_info_parse(link, tb);
627 if (tb[IFLA_NUM_VF]) {
629 link->ce_mask |= LINK_ATTR_NUM_VF;
630 if (link->l_num_vf && tb[IFLA_VFINFO_LIST]) {
631 if ((err = rtnl_link_sriov_parse_vflist(link, tb)) < 0) {
634 link->ce_mask |= LINK_ATTR_VF_LIST;
638 if (tb[IFLA_LINKINFO]) {
639 struct nlattr *li[IFLA_INFO_MAX+1];
646 if (li[IFLA_INFO_KIND]) {
647 struct rtnl_link_info_ops *ops;
655 if ((af = nl_str2af(kind)) >= 0 &&
656 !af_ops && (af_ops = af_lookup_and_alloc(link, af))) {
658 if (af_ops->ao_protinfo_policy) {
659 tb[IFLA_PROTINFO] = (
struct nlattr *)af_ops->ao_protinfo_policy;
662 link->l_af_ops = af_ops;
666 link->l_info_ops = ops;
670 (li[IFLA_INFO_DATA] || li[IFLA_INFO_XSTATS])) {
671 err = ops->io_parse(link, li[IFLA_INFO_DATA],
672 li[IFLA_INFO_XSTATS]);
680 link->ce_mask |= LINK_ATTR_LINKINFO;
683 if (tb[IFLA_PROTINFO] && af_ops && af_ops->ao_parse_protinfo) {
684 err = af_ops->ao_parse_protinfo(link, tb[IFLA_PROTINFO],
685 link->l_af_data[link->l_family]);
688 link->ce_mask |= LINK_ATTR_PROTINFO;
691 if (tb[IFLA_AF_SPEC]) {
695 if (af_ops_family && af_ops_family->ao_parse_af_full) {
696 err = af_ops_family->ao_parse_af_full(link,
698 link->l_af_data[af_ops_family->ao_family]);
701 link->ce_mask |= LINK_ATTR_AF_SPEC;
702 }
else if (family == AF_UNSPEC) {
703 struct nlattr *af_attr;
707 af_ops = af_lookup_and_alloc(link,
nla_type(af_attr));
708 if (af_ops && af_ops->ao_parse_af) {
709 char *af_data = link->l_af_data[
nla_type(af_attr)];
711 err = af_ops->ao_parse_af(link, af_attr, af_data);
716 link->ce_mask |= LINK_ATTR_AF_SPEC;
718 NL_DBG(3,
"IFLA_AF_SPEC parsing not implemented for family %d\n",
723 if (tb[IFLA_PROMISCUITY]) {
724 link->l_promiscuity =
nla_get_u32(tb[IFLA_PROMISCUITY]);
725 link->ce_mask |= LINK_ATTR_PROMISCUITY;
728 if (tb[IFLA_NUM_TX_QUEUES]) {
729 link->l_num_tx_queues =
nla_get_u32(tb[IFLA_NUM_TX_QUEUES]);
730 link->ce_mask |= LINK_ATTR_NUM_TX_QUEUES;
733 if (tb[IFLA_NUM_RX_QUEUES]) {
734 link->l_num_rx_queues =
nla_get_u32(tb[IFLA_NUM_RX_QUEUES]);
735 link->ce_mask |= LINK_ATTR_NUM_RX_QUEUES;
738 if (tb[IFLA_GSO_MAX_SEGS]) {
739 link->l_gso_max_segs =
nla_get_u32(tb[IFLA_GSO_MAX_SEGS]);
740 link->ce_mask |= LINK_ATTR_GSO_MAX_SEGS;
743 if (tb[IFLA_GSO_MAX_SIZE]) {
744 link->l_gso_max_size =
nla_get_u32(tb[IFLA_GSO_MAX_SIZE]);
745 link->ce_mask |= LINK_ATTR_GSO_MAX_SIZE;
748 if (tb[IFLA_GROUP]) {
750 link->ce_mask |= LINK_ATTR_GROUP;
753 if (tb[IFLA_PHYS_PORT_ID]) {
755 if (link->l_phys_port_id == NULL) {
759 link->ce_mask |= LINK_ATTR_PHYS_PORT_ID;
762 if (tb[IFLA_PHYS_PORT_NAME]) {
763 nla_strlcpy(link->l_phys_port_name, tb[IFLA_PHYS_PORT_NAME], IFNAMSIZ);
764 link->ce_mask |= LINK_ATTR_PHYS_PORT_NAME;
767 if (tb[IFLA_PHYS_SWITCH_ID]) {
769 if (link->l_phys_switch_id == NULL) {
773 link->ce_mask |= LINK_ATTR_PHYS_SWITCH_ID;
776 err = pp->pp_cb((
struct nl_object *) link, pp);
783 static int link_request_update(
struct nl_cache *cache,
struct nl_sock *sk)
785 int family = cache->c_iarg1;
786 struct ifinfomsg hdr = { .ifi_family = family };
787 struct rtnl_link_af_ops *ops;
790 __u32 ext_filter_mask = RTEXT_FILTER_VF;
797 if (
nlmsg_append(msg, &hdr,
sizeof(hdr), NLMSG_ALIGNTO) < 0)
798 goto nla_put_failure;
801 if (ops && ops->ao_get_af) {
802 err = ops->ao_get_af(msg, &ext_filter_mask);
804 goto nla_put_failure;
807 if (ext_filter_mask) {
808 err =
nla_put(msg, IFLA_EXT_MASK,
sizeof(ext_filter_mask), &ext_filter_mask);
810 goto nla_put_failure;
822 static void link_dump_line(
struct nl_object *obj,
struct nl_dump_params *p)
825 struct nl_cache *cache = obj->ce_cache;
827 int fetched_cache = 0;
834 nl_dump_line(p,
"%s %s ", link->l_name,
835 nl_llproto2str(link->l_arptype, buf,
sizeof(buf)));
840 if (link->ce_mask & LINK_ATTR_MASTER) {
843 nl_dump(p,
"master %s ", master ? master->l_name :
"inv");
847 nl_dump(p,
"master %d ", link->l_master);
850 rtnl_link_flags2str(link->l_flags, buf,
sizeof(buf));
854 if (link->ce_mask & LINK_ATTR_LINK) {
856 && !(link->ce_mask & LINK_ATTR_LINK_NETNSID)) {
858 nl_dump(p,
"slave-of %s ", ll ? ll->l_name :
"NONE");
862 nl_dump(p,
"slave-of %d ", link->l_link);
864 if (link->ce_mask & LINK_ATTR_LINK_NETNSID)
865 nl_dump(p,
"link-netnsid %d ", link->l_link_netnsid);
867 if (link->ce_mask & LINK_ATTR_GROUP)
868 nl_dump(p,
"group %u ", link->l_group);
870 if (link->l_info_ops && link->l_info_ops->io_dump[
NL_DUMP_LINE])
873 do_foreach_af(link, af_dump_line, p);
881 static void link_dump_details(
struct nl_object *obj,
struct nl_dump_params *p)
886 link_dump_line(obj, p);
888 nl_dump_line(p,
" mtu %u ", link->l_mtu);
889 nl_dump(p,
"txqlen %u weight %u ", link->l_txqlen, link->l_weight);
891 if (link->ce_mask & LINK_ATTR_QDISC)
892 nl_dump(p,
"qdisc %s ", link->l_qdisc);
894 if (link->ce_mask & LINK_ATTR_MAP && link->l_map.lm_irq)
895 nl_dump(p,
"irq %u ", link->l_map.lm_irq);
897 if (link->ce_mask & LINK_ATTR_IFINDEX)
898 nl_dump(p,
"index %u ", link->l_index);
900 if (link->ce_mask & LINK_ATTR_PROMISCUITY && link->l_promiscuity > 0)
901 nl_dump(p,
"promisc-mode (%u users) ", link->l_promiscuity);
905 if (link->ce_mask & LINK_ATTR_IFALIAS)
906 nl_dump_line(p,
" alias %s\n", link->l_ifalias);
908 nl_dump_line(p,
" ");
910 if (link->ce_mask & LINK_ATTR_NUM_TX_QUEUES)
911 nl_dump(p,
"txq %u ", link->l_num_tx_queues);
913 if (link->ce_mask & LINK_ATTR_NUM_RX_QUEUES)
914 nl_dump(p,
"rxq %u ", link->l_num_rx_queues);
916 if (link->ce_mask & LINK_ATTR_BRD)
920 if ((link->ce_mask & LINK_ATTR_OPERSTATE) &&
921 link->l_operstate != IF_OPER_UNKNOWN) {
922 rtnl_link_operstate2str(link->l_operstate, buf,
sizeof(buf));
926 if (link->ce_mask & LINK_ATTR_NUM_VF)
927 nl_dump(p,
"num-vf %u ", link->l_num_vf);
930 rtnl_link_mode2str(link->l_linkmode, buf,
sizeof(buf)));
933 rtnl_link_carrier2str(link->l_carrier, buf,
sizeof(buf)));
935 if (link->ce_mask & LINK_ATTR_CARRIER_CHANGES)
936 nl_dump(p,
" carrier-changes %u", link->l_carrier_changes);
943 do_foreach_af(link, af_dump_details, p);
945 if (link->ce_mask & LINK_ATTR_VF_LIST)
946 rtnl_link_sriov_dump_details(link, p);
949 static void link_dump_stats(
struct nl_object *obj,
struct nl_dump_params *p)
955 link_dump_details(obj, p);
957 nl_dump_line(p,
" Stats: bytes packets errors " 958 " dropped fifo-err compressed\n");
962 strcpy(fmt,
" RX %X.2f %s %10" PRIu64
" %10" PRIu64
" %10" PRIu64
" %10" PRIu64
" %10" PRIu64
"\n");
963 fmt[9] = *unit ==
'B' ?
'9' :
'7';
965 nl_dump_line(p, fmt, res, unit,
974 strcpy(fmt,
" TX %X.2f %s %10" PRIu64
" %10" PRIu64
" %10" PRIu64
" %10" PRIu64
" %10" PRIu64
"\n");
975 fmt[9] = *unit ==
'B' ?
'9' :
'7';
977 nl_dump_line(p, fmt, res, unit,
984 nl_dump_line(p,
" Errors: length over crc " 985 " frame missed multicast\n");
987 nl_dump_line(p,
" RX %10" PRIu64
" %10" PRIu64
" %10" 988 PRIu64
" %10" PRIu64
" %10" PRIu64
" %10" 997 nl_dump_line(p,
" aborted carrier heartbeat " 998 " window collision\n");
1000 nl_dump_line(p,
" TX %10" PRIu64
" %10" PRIu64
" %10" 1001 PRIu64
" %10" PRIu64
" %10" PRIu64
"\n",
1008 if (link->l_info_ops && link->l_info_ops->io_dump[
NL_DUMP_STATS])
1011 do_foreach_af(link, af_dump_stats, p);
1013 if (link->ce_mask & LINK_ATTR_VF_LIST)
1014 rtnl_link_sriov_dump_stats(link, p);
1018 static int link_handle_event(
struct nl_object *a,
struct rtnl_link_event_cb *cb)
1021 struct nl_cache *c = dp_cache(a);
1024 if (l->l_change == ~0U) {
1025 if (l->ce_msgtype == RTM_NEWLINK)
1028 cb->le_unregister(l);
1033 if (l->l_change & IFF_SLAVE) {
1034 if (l->l_flags & IFF_SLAVE) {
1036 cb->le_new_bonding(l, m);
1040 cb->le_cancel_bonding(l);
1044 if (l->l_change & IFF_UP && l->l_change & IFF_RUNNING)
1045 dp_dump_line(p, line++,
"link %s changed state to %s.\n",
1046 l->l_name, l->l_flags & IFF_UP ?
"up" :
"down");
1048 if (l->l_change & IFF_PROMISC) {
1049 dp_new_line(p, line++);
1050 dp_dump(p,
"link %s %s promiscuous mode.\n",
1051 l->l_name, l->l_flags & IFF_PROMISC ?
"entered" :
"left");
1055 dp_dump_line(p, line++,
"link %s sent unknown event.\n",
1064 static void link_keygen(
struct nl_object *obj, uint32_t *hashkey,
1068 unsigned int lkey_sz;
1069 struct link_hash_key {
1072 } __attribute__((packed)) lkey;
1074 lkey_sz =
sizeof(lkey);
1075 lkey.l_index = link->l_index;
1076 lkey.l_family = link->l_family;
1078 *hashkey = nl_hash(&lkey, lkey_sz, 0) % table_sz;
1080 NL_DBG(5,
"link %p key (dev %d fam %d) keysz %d, hash 0x%x\n",
1081 link, lkey.l_index, lkey.l_family, lkey_sz, *hashkey);
1086 static uint64_t link_compare(
struct nl_object *_a,
struct nl_object *_b,
1087 uint64_t attrs,
int flags)
1093 #define LINK_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, LINK_ATTR_##ATTR, a, b, EXPR) 1095 diff |= LINK_DIFF(IFINDEX, a->l_index != b->l_index);
1096 diff |= LINK_DIFF(MTU, a->l_mtu != b->l_mtu);
1097 diff |= LINK_DIFF(LINK, a->l_link != b->l_link);
1098 diff |= LINK_DIFF(LINK_NETNSID, a->l_link_netnsid != b->l_link_netnsid);
1099 diff |= LINK_DIFF(TXQLEN, a->l_txqlen != b->l_txqlen);
1100 diff |= LINK_DIFF(WEIGHT, a->l_weight != b->l_weight);
1101 diff |= LINK_DIFF(MASTER, a->l_master != b->l_master);
1102 diff |= LINK_DIFF(FAMILY, a->l_family != b->l_family);
1103 diff |= LINK_DIFF(OPERSTATE, a->l_operstate != b->l_operstate);
1104 diff |= LINK_DIFF(LINKMODE, a->l_linkmode != b->l_linkmode);
1105 diff |= LINK_DIFF(QDISC, strcmp(a->l_qdisc, b->l_qdisc));
1106 diff |= LINK_DIFF(IFNAME, strcmp(a->l_name, b->l_name));
1107 diff |= LINK_DIFF(ADDR,
nl_addr_cmp(a->l_addr, b->l_addr));
1108 diff |= LINK_DIFF(BRD,
nl_addr_cmp(a->l_bcast, b->l_bcast));
1109 diff |= LINK_DIFF(IFALIAS, strcmp(a->l_ifalias, b->l_ifalias));
1110 diff |= LINK_DIFF(NUM_VF, a->l_num_vf != b->l_num_vf);
1111 diff |= LINK_DIFF(PROMISCUITY, a->l_promiscuity != b->l_promiscuity);
1112 diff |= LINK_DIFF(NUM_TX_QUEUES,a->l_num_tx_queues != b->l_num_tx_queues);
1113 diff |= LINK_DIFF(NUM_RX_QUEUES,a->l_num_rx_queues != b->l_num_rx_queues);
1114 diff |= LINK_DIFF(GROUP, a->l_group != b->l_group);
1116 if (flags & LOOSE_COMPARISON)
1117 diff |= LINK_DIFF(FLAGS,
1118 (a->l_flags ^ b->l_flags) & b->l_flag_mask);
1120 diff |= LINK_DIFF(FLAGS, a->l_flags != b->l_flags);
1125 if (a->l_family == b->l_family) {
1127 goto protinfo_mismatch;
1135 diff |= LINK_DIFF(PROTINFO, 1);
1141 static const struct trans_tbl link_attrs[] = {
1142 __ADD(LINK_ATTR_MTU, mtu),
1143 __ADD(LINK_ATTR_LINK, link),
1144 __ADD(LINK_ATTR_TXQLEN, txqlen),
1145 __ADD(LINK_ATTR_WEIGHT, weight),
1146 __ADD(LINK_ATTR_MASTER, master),
1147 __ADD(LINK_ATTR_QDISC, qdisc),
1148 __ADD(LINK_ATTR_MAP, map),
1149 __ADD(LINK_ATTR_ADDR, address),
1150 __ADD(LINK_ATTR_BRD, broadcast),
1151 __ADD(LINK_ATTR_FLAGS, flags),
1152 __ADD(LINK_ATTR_IFNAME, name),
1153 __ADD(LINK_ATTR_IFINDEX, ifindex),
1154 __ADD(LINK_ATTR_FAMILY, family),
1155 __ADD(LINK_ATTR_ARPTYPE, arptype),
1156 __ADD(LINK_ATTR_STATS, stats),
1157 __ADD(LINK_ATTR_CHANGE, change),
1158 __ADD(LINK_ATTR_OPERSTATE, operstate),
1159 __ADD(LINK_ATTR_LINKMODE, linkmode),
1160 __ADD(LINK_ATTR_IFALIAS, ifalias),
1161 __ADD(LINK_ATTR_NUM_VF, num_vf),
1162 __ADD(LINK_ATTR_PROMISCUITY, promiscuity),
1163 __ADD(LINK_ATTR_NUM_TX_QUEUES, num_tx_queues),
1164 __ADD(LINK_ATTR_NUM_RX_QUEUES, num_rx_queues),
1165 __ADD(LINK_ATTR_GSO_MAX_SEGS, gso_max_segs),
1166 __ADD(LINK_ATTR_GSO_MAX_SIZE, gso_max_size),
1167 __ADD(LINK_ATTR_GROUP, group),
1168 __ADD(LINK_ATTR_CARRIER, carrier),
1169 __ADD(LINK_ATTR_CARRIER_CHANGES, carrier_changes),
1170 __ADD(LINK_ATTR_PHYS_PORT_ID, phys_port_id),
1171 __ADD(LINK_ATTR_PHYS_PORT_NAME, phys_port_name),
1172 __ADD(LINK_ATTR_PHYS_SWITCH_ID, phys_switch_id),
1173 __ADD(LINK_ATTR_NS_FD, ns_fd),
1174 __ADD(LINK_ATTR_NS_PID, ns_pid),
1175 __ADD(LINK_ATTR_LINK_NETNSID, link_netnsid),
1178 static char *link_attrs2str(
int attrs,
char *buf,
size_t len)
1180 return __flags2str(attrs, buf, len, link_attrs,
1181 ARRAY_SIZE(link_attrs));
1216 struct nl_cache **result,
unsigned int flags)
1218 struct nl_cache * cache;
1225 cache->c_iarg1 = family;
1288 if (cache->c_ops != &rtnl_link_ops)
1291 nl_list_for_each_entry(link, &cache->c_items, ce_list) {
1292 if (link->l_index == ifindex) {
1321 if (cache->c_ops != &rtnl_link_ops)
1324 nl_list_for_each_entry(link, &cache->c_items, ce_list) {
1325 if (!strcmp(name, link->l_name)) {
1349 struct nl_msg **result)
1351 struct ifinfomsg ifi;
1353 __u32 vf_mask = RTEXT_FILTER_VF;
1354 int err = -NLE_MSGSIZE;
1356 if (ifindex <= 0 && !name) {
1357 APPBUG(
"ifindex or name must be specified");
1358 return -NLE_MISSING_ATTR;
1361 memset(&ifi, 0,
sizeof(ifi));
1367 ifi.ifi_index = ifindex;
1369 if (
nlmsg_append(msg, &ifi,
sizeof(ifi), NLMSG_ALIGNTO) < 0) {
1371 goto nla_put_failure;
1377 err =
nla_put(msg, IFLA_EXT_MASK,
sizeof(vf_mask), &vf_mask);
1379 goto nla_put_failure;
1413 struct nl_msg *msg = NULL;
1414 struct nl_object *obj;
1427 if (syserr == -EINVAL &&
1434 return -NLE_OPNOTSUPP;
1443 if (err == 0 && obj)
1469 strncpy(dst, link->l_name, len - 1);
1493 ifindex = link->l_index;
1502 int rtnl_link_fill_info(
struct nl_msg *msg,
struct rtnl_link *link)
1504 if (link->ce_mask & LINK_ATTR_ADDR)
1507 if (link->ce_mask & LINK_ATTR_BRD)
1510 if (link->ce_mask & LINK_ATTR_MTU)
1513 if (link->ce_mask & LINK_ATTR_TXQLEN)
1516 if (link->ce_mask & LINK_ATTR_WEIGHT)
1519 if (link->ce_mask & LINK_ATTR_IFNAME)
1522 if (link->ce_mask & LINK_ATTR_OPERSTATE)
1523 NLA_PUT_U8(msg, IFLA_OPERSTATE, link->l_operstate);
1525 if (link->ce_mask & LINK_ATTR_CARRIER)
1526 NLA_PUT_U8(msg, IFLA_CARRIER, link->l_carrier);
1528 if (link->ce_mask & LINK_ATTR_LINKMODE)
1529 NLA_PUT_U8(msg, IFLA_LINKMODE, link->l_linkmode);
1531 if (link->ce_mask & LINK_ATTR_IFALIAS)
1534 if (link->ce_mask & LINK_ATTR_LINK)
1537 if (link->ce_mask & LINK_ATTR_LINK_NETNSID)
1538 NLA_PUT_S32(msg, IFLA_LINK_NETNSID, link->l_link_netnsid);
1540 if (link->ce_mask & LINK_ATTR_MASTER)
1543 if (link->ce_mask & LINK_ATTR_NUM_TX_QUEUES)
1544 NLA_PUT_U32(msg, IFLA_NUM_TX_QUEUES, link->l_num_tx_queues);
1546 if (link->ce_mask & LINK_ATTR_NUM_RX_QUEUES)
1547 NLA_PUT_U32(msg, IFLA_NUM_RX_QUEUES, link->l_num_rx_queues);
1549 if (link->ce_mask & LINK_ATTR_NS_FD)
1552 if (link->ce_mask & LINK_ATTR_NS_PID)
1553 NLA_PUT_U32(msg, IFLA_NET_NS_PID, link->l_ns_pid);
1558 return -NLE_MSGSIZE;
1561 static int build_link_msg(
int cmd,
struct ifinfomsg *hdr,
1562 struct rtnl_link *link,
int flags,
struct nl_msg **result)
1565 struct nlattr *af_spec;
1571 if (
nlmsg_append(msg, hdr,
sizeof(*hdr), NLMSG_ALIGNTO) < 0)
1572 goto nla_put_failure;
1574 if (rtnl_link_fill_info(msg, link))
1575 goto nla_put_failure;
1577 if (link->ce_mask & LINK_ATTR_GROUP)
1580 if (link->ce_mask & LINK_ATTR_LINKINFO) {
1581 struct nlattr *info;
1584 goto nla_put_failure;
1588 if (link->l_info_ops) {
1589 if (link->l_info_ops->io_put_attrs &&
1590 link->l_info_ops->io_put_attrs(msg, link) < 0)
1591 goto nla_put_failure;
1597 if (link->ce_mask & LINK_ATTR_VF_LIST) {
1598 if (rtnl_link_sriov_fill_vflist(msg, link) < 0)
1599 goto nla_put_failure;
1602 if (do_foreach_af(link, af_fill_pi, msg) < 0)
1603 goto nla_put_failure;
1606 goto nla_put_failure;
1608 if (do_foreach_af(link, af_fill, msg) < 0)
1609 goto nla_put_failure;
1618 return -NLE_MSGSIZE;
1643 struct nl_msg **result)
1645 struct ifinfomsg ifi = {
1646 .ifi_family = link->l_family,
1647 .ifi_index = link->l_index,
1648 .ifi_flags = link->l_flags,
1649 .ifi_change = link->l_flag_mask,
1652 return build_link_msg(RTM_NEWLINK, &ifi, link, flags, result);
1706 struct nl_msg **result)
1708 struct ifinfomsg ifi = {
1709 .ifi_family = orig->l_family,
1710 .ifi_index = orig->l_index,
1714 if (changes->ce_mask & LINK_ATTR_FLAGS) {
1715 ifi.ifi_flags = orig->l_flags & ~changes->l_flag_mask;
1716 ifi.ifi_flags |= changes->l_flags;
1717 ifi.ifi_change = changes->l_flag_mask;
1720 if (changes->l_family && changes->l_family != orig->l_family) {
1721 APPBUG(
"link change: family is immutable");
1722 return -NLE_IMMUTABLE;
1726 if (orig->ce_mask & LINK_ATTR_IFINDEX &&
1727 orig->ce_mask & LINK_ATTR_IFNAME &&
1728 changes->ce_mask & LINK_ATTR_IFNAME &&
1729 !strcmp(orig->l_name, changes->l_name))
1730 changes->ce_mask &= ~LINK_ATTR_IFNAME;
1732 rt = af_request_type(orig->l_family);
1734 if ((err = build_link_msg(rt, &ifi, changes, flags, result)) < 0)
1789 err = wait_for_ack(sk);
1790 if (err == -NLE_OPNOTSUPP && msg->nm_nlh->nlmsg_type == RTM_NEWLINK) {
1791 msg->nm_nlh->nlmsg_type = RTM_SETLINK;
1821 struct nl_msg **result)
1824 struct ifinfomsg ifi = {
1825 .ifi_index = link->l_index,
1828 if (!(link->ce_mask & (LINK_ATTR_IFINDEX | LINK_ATTR_IFNAME))) {
1829 APPBUG(
"ifindex or name must be specified");
1830 return -NLE_MISSING_ATTR;
1836 if (
nlmsg_append(msg, &ifi,
sizeof(ifi), NLMSG_ALIGNTO) < 0)
1837 goto nla_put_failure;
1839 if (link->ce_mask & LINK_ATTR_IFNAME)
1847 return -NLE_MSGSIZE;
1928 strncpy(link->l_name, name,
sizeof(link->l_name) - 1);
1929 link->ce_mask |= LINK_ATTR_IFNAME;
1942 return link->ce_mask & LINK_ATTR_IFNAME ? link->l_name : NULL;
1952 link->l_group = group;
1953 link->ce_mask |= LINK_ATTR_GROUP;
1964 return link->l_group;
1967 static inline void __assign_addr(
struct rtnl_link *link,
struct nl_addr **pos,
1968 struct nl_addr *
new,
int flag)
1976 link->ce_mask |= flag;
1992 __assign_addr(link, &link->l_addr, addr, LINK_ATTR_ADDR);
2006 return link->ce_mask & LINK_ATTR_ADDR ? link->l_addr : NULL;
2023 __assign_addr(link, &link->l_bcast, addr, LINK_ATTR_BRD);
2037 return link->ce_mask & LINK_ATTR_BRD ? link->l_bcast : NULL;
2050 link->l_flag_mask |= flags;
2051 link->l_flags |= flags;
2052 link->ce_mask |= LINK_ATTR_FLAGS;
2065 link->l_flag_mask |= flags;
2066 link->l_flags &= ~flags;
2067 link->ce_mask |= LINK_ATTR_FLAGS;
2081 return link->l_flags;
2091 link->l_family = family;
2092 link->ce_mask |= LINK_ATTR_FAMILY;
2094 if (link->l_af_ops) {
2095 af_free(link, link->l_af_ops,
2096 link->l_af_data[link->l_af_ops->ao_family], NULL);
2097 link->l_af_data[link->l_af_ops->ao_family] = NULL;
2100 link->l_af_ops = af_lookup_and_alloc(link, family);
2112 return link->ce_mask & LINK_ATTR_FAMILY ? link->l_family : AF_UNSPEC;
2126 link->l_arptype = arptype;
2127 link->ce_mask |= LINK_ATTR_ARPTYPE;
2140 if (link->ce_mask & LINK_ATTR_ARPTYPE)
2141 return link->l_arptype;
2156 link->l_index = ifindex;
2157 link->ce_mask |= LINK_ATTR_IFINDEX;
2171 return link->l_index;
2185 link->ce_mask |= LINK_ATTR_MTU;
2213 link->l_txqlen = txqlen;
2214 link->ce_mask |= LINK_ATTR_TXQLEN;
2229 return link->ce_mask & LINK_ATTR_TXQLEN ? link->l_txqlen : 0;
2232 void rtnl_link_set_link(
struct rtnl_link *link,
int ifindex)
2234 link->l_link = ifindex;
2235 link->ce_mask |= LINK_ATTR_LINK;
2238 int rtnl_link_get_link(
struct rtnl_link *link)
2240 return link->l_link;
2253 link->l_link_netnsid = link_netnsid;
2254 link->ce_mask |= LINK_ATTR_LINK_NETNSID;
2270 if (!(link->ce_mask & LINK_ATTR_LINK_NETNSID))
2273 *out_link_netnsid = link->l_link_netnsid;
2286 link->l_master = ifindex;
2287 link->ce_mask |= LINK_ATTR_MASTER;
2299 return link->l_master;
2311 link->l_carrier = status;
2312 link->ce_mask |= LINK_ATTR_CARRIER;
2324 return link->l_carrier;
2336 if (!(link->ce_mask & LINK_ATTR_CARRIER_CHANGES))
2339 if (carrier_changes)
2340 *carrier_changes = link->l_carrier_changes;
2355 link->l_operstate = status;
2356 link->ce_mask |= LINK_ATTR_OPERSTATE;
2369 return link->l_operstate;
2382 link->l_linkmode = mode;
2383 link->ce_mask |= LINK_ATTR_LINKMODE;
2396 return link->l_linkmode;
2409 return link->l_ifalias;
2426 free(link->l_ifalias);
2429 link->l_ifalias = strdup(alias);
2430 link->ce_mask |= LINK_ATTR_IFALIAS;
2432 link->l_ifalias = NULL;
2433 link->ce_mask &= ~LINK_ATTR_IFALIAS;
2452 strncpy(link->l_qdisc, name,
sizeof(link->l_qdisc) - 1);
2453 link->ce_mask |= LINK_ATTR_QDISC;
2466 return link->ce_mask & LINK_ATTR_QDISC ? link->l_qdisc : NULL;
2479 if (link->ce_mask & LINK_ATTR_NUM_VF) {
2480 *num_vf = link->l_num_vf;
2483 return -NLE_OPNOTSUPP;
2495 if (
id > RTNL_LINK_STATS_MAX)
2498 return link->l_stats[id];
2513 const uint64_t value)
2515 if (
id > RTNL_LINK_STATS_MAX)
2518 link->l_stats[id] = value;
2537 struct rtnl_link_info_ops *io;
2541 free(link->l_info_kind);
2542 link->ce_mask &= ~LINK_ATTR_LINKINFO;
2543 release_link_info(link);
2548 kind = strdup(type);
2554 if (io->io_alloc && (err = io->io_alloc(link)) < 0)
2557 link->l_info_ops = io;
2560 link->l_info_kind = kind;
2561 link->ce_mask |= LINK_ATTR_LINKINFO;
2579 return link->l_info_kind;
2593 link->l_promiscuity = count;
2594 link->ce_mask |= LINK_ATTR_PROMISCUITY;
2606 return link->l_promiscuity;
2625 link->l_num_tx_queues = nqueues;
2626 link->ce_mask |= LINK_ATTR_NUM_TX_QUEUES;
2637 return link->l_num_tx_queues;
2656 link->l_num_rx_queues = nqueues;
2657 link->ce_mask |= LINK_ATTR_NUM_RX_QUEUES;
2668 return link->l_num_rx_queues;
2680 if (!(link->ce_mask & LINK_ATTR_GSO_MAX_SEGS))
2684 *gso_max_segs = link->l_gso_max_segs;
2698 if (!(link->ce_mask & LINK_ATTR_GSO_MAX_SIZE))
2702 *gso_max_size = link->l_gso_max_size;
2715 return link->l_phys_port_id;
2726 return link->l_phys_port_name;
2735 struct nl_data *rtnl_link_get_phys_switch_id(
struct rtnl_link *link)
2737 return link->l_phys_switch_id;
2740 void rtnl_link_set_ns_fd(
struct rtnl_link *link,
int fd)
2743 link->ce_mask |= LINK_ATTR_NS_FD;
2746 int rtnl_link_get_ns_fd(
struct rtnl_link *link)
2748 return link->l_ns_fd;
2751 void rtnl_link_set_ns_pid(
struct rtnl_link *link, pid_t pid)
2753 link->l_ns_pid = pid;
2754 link->ce_mask |= LINK_ATTR_NS_PID;
2757 pid_t rtnl_link_get_ns_pid(
struct rtnl_link *link)
2759 return link->l_ns_pid;
2809 err = -NLE_OPNOTSUPP;
2892 static const struct trans_tbl link_flags[] = {
2893 __ADD(IFF_LOOPBACK, loopback),
2894 __ADD(IFF_BROADCAST, broadcast),
2895 __ADD(IFF_POINTOPOINT, pointopoint),
2896 __ADD(IFF_MULTICAST, multicast),
2897 __ADD(IFF_NOARP, noarp),
2898 __ADD(IFF_ALLMULTI, allmulti),
2899 __ADD(IFF_PROMISC, promisc),
2900 __ADD(IFF_MASTER, master),
2901 __ADD(IFF_SLAVE, slave),
2902 __ADD(IFF_DEBUG, debug),
2903 __ADD(IFF_DYNAMIC, dynamic),
2904 __ADD(IFF_AUTOMEDIA, automedia),
2905 __ADD(IFF_PORTSEL, portsel),
2906 __ADD(IFF_NOTRAILERS, notrailers),
2908 __ADD(IFF_RUNNING, running),
2909 __ADD(IFF_LOWER_UP, lowerup),
2910 __ADD(IFF_DORMANT, dormant),
2911 __ADD(IFF_ECHO, echo),
2914 char *rtnl_link_flags2str(
int flags,
char *buf,
size_t len)
2916 return __flags2str(flags, buf, len, link_flags,
2917 ARRAY_SIZE(link_flags));
2920 int rtnl_link_str2flags(
const char *name)
2922 return __str2flags(name, link_flags, ARRAY_SIZE(link_flags));
2925 static const struct trans_tbl link_stats[] = {
2992 char *rtnl_link_stat2str(
int st,
char *buf,
size_t len)
2994 return __type2str(st, buf, len, link_stats, ARRAY_SIZE(link_stats));
2997 int rtnl_link_str2stat(
const char *name)
2999 return __str2type(name, link_stats, ARRAY_SIZE(link_stats));
3002 static const struct trans_tbl link_operstates[] = {
3003 __ADD(IF_OPER_UNKNOWN, unknown),
3004 __ADD(IF_OPER_NOTPRESENT, notpresent),
3005 __ADD(IF_OPER_DOWN, down),
3006 __ADD(IF_OPER_LOWERLAYERDOWN, lowerlayerdown),
3007 __ADD(IF_OPER_TESTING, testing),
3008 __ADD(IF_OPER_DORMANT, dormant),
3009 __ADD(IF_OPER_UP, up),
3012 char *rtnl_link_operstate2str(uint8_t st,
char *buf,
size_t len)
3014 return __type2str(st, buf, len, link_operstates,
3015 ARRAY_SIZE(link_operstates));
3018 int rtnl_link_str2operstate(
const char *name)
3020 return __str2type(name, link_operstates,
3021 ARRAY_SIZE(link_operstates));
3024 static const struct trans_tbl link_modes[] = {
3025 __ADD(IF_LINK_MODE_DEFAULT,
default),
3026 __ADD(IF_LINK_MODE_DORMANT, dormant),
3029 static const struct trans_tbl carrier_states[] = {
3030 __ADD(IF_CARRIER_DOWN, down),
3031 __ADD(IF_CARRIER_UP, up),
3034 char *rtnl_link_mode2str(uint8_t st,
char *buf,
size_t len)
3036 return __type2str(st, buf, len, link_modes, ARRAY_SIZE(link_modes));
3039 int rtnl_link_str2mode(
const char *name)
3041 return __str2type(name, link_modes, ARRAY_SIZE(link_modes));
3044 char *rtnl_link_carrier2str(uint8_t st,
char *buf,
size_t len)
3046 return __type2str(st, buf, len, carrier_states,
3047 ARRAY_SIZE(carrier_states));
3050 int rtnl_link_str2carrier(
const char *name)
3052 return __str2type(name, carrier_states, ARRAY_SIZE(carrier_states));
3055 int rtnl_link_has_vf_list(
struct rtnl_link *link) {
3056 if (link->ce_mask & LINK_ATTR_VF_LIST)
3062 void rtnl_link_set_vf_list(
struct rtnl_link *link) {
3065 if (!(err = rtnl_link_has_vf_list(link)))
3066 link->ce_mask |= LINK_ATTR_VF_LIST;
3071 void rtnl_link_unset_vf_list(
struct rtnl_link *link) {
3074 if ((err = rtnl_link_has_vf_list(link)))
3075 link->ce_mask &= ~LINK_ATTR_VF_LIST;
3107 link->l_weight = weight;
3108 link->ce_mask |= LINK_ATTR_WEIGHT;
3116 return link->l_weight;
3121 static struct nl_object_ops link_obj_ops = {
3122 .oo_name =
"route/link",
3124 .oo_free_data = link_free_data,
3125 .oo_clone = link_clone,
3131 .oo_compare = link_compare,
3132 .oo_keygen = link_keygen,
3133 .oo_attrs2str = link_attrs2str,
3134 .oo_id_attrs = LINK_ATTR_IFINDEX | LINK_ATTR_FAMILY,
3137 static struct nl_af_group link_groups[] = {
3138 { AF_UNSPEC, RTNLGRP_LINK },
3139 { AF_BRIDGE, RTNLGRP_LINK },
3140 { END_OF_GROUP_LIST },
3143 static struct nl_cache_ops rtnl_link_ops = {
3144 .co_name =
"route/link",
3145 .co_hdrsize =
sizeof(
struct ifinfomsg),
3147 { RTM_NEWLINK, NL_ACT_NEW,
"new" },
3148 { RTM_DELLINK, NL_ACT_DEL,
"del" },
3149 { RTM_GETLINK, NL_ACT_GET,
"get" },
3150 { RTM_SETLINK, NL_ACT_CHANGE,
"set" },
3151 END_OF_MSGTYPES_LIST,
3153 .co_protocol = NETLINK_ROUTE,
3154 .co_groups = link_groups,
3155 .co_request_update = link_request_update,
3156 .co_msg_parser = link_msg_parser,
3157 .co_obj_ops = &link_obj_ops,
3160 static void __init link_init(
void)
3165 static void __exit link_exit(
void)
int nl_send_auto_complete(struct nl_sock *sk, struct nl_msg *msg)
struct nl_addr * nl_addr_clone(const struct nl_addr *addr)
Clone existing abstract address object.
Dump object briefly on one line.
int rtnl_link_get_link_netnsid(const struct rtnl_link *link, int32_t *out_link_netnsid)
Get the netnsid of the link.
uint32_t rtnl_link_get_group(struct rtnl_link *link)
Return the group identifier of link object.
int32_t nla_get_s32(const struct nlattr *nla)
Return payload of 32 bit signed integer attribute.
int rtnl_link_info_data_compare(struct rtnl_link *a, struct rtnl_link *b, int flags)
Compare link info data.
void nlmsg_free(struct nl_msg *msg)
Release a reference from an netlink message.
struct rtnl_link * rtnl_link_get_by_name(struct nl_cache *cache, const char *name)
Lookup link in cache by link name.
int nl_addr_cmp(const struct nl_addr *a, const struct nl_addr *b)
Compare abstract addresses.
int nl_addr_guess_family(const struct nl_addr *addr)
Guess address family of abstract address based on address size.
int rtnl_link_alloc_cache_flags(struct nl_sock *sk, int family, struct nl_cache **result, unsigned int flags)
Allocate link cache and fill in all configured links.
void * nlmsg_data(const struct nlmsghdr *nlh)
Return pointer to message payload.
void rtnl_link_set_master(struct rtnl_link *link, int ifindex)
Set master link of link object.
void rtnl_link_set_ifindex(struct rtnl_link *link, int ifindex)
Set interface index of link object.
void rtnl_link_unset_flags(struct rtnl_link *link, unsigned int flags)
Unset flags of link object.
#define NLA_PUT_ADDR(msg, attrtype, addr)
Add address attribute to netlink message.
int rtnl_link_set_info_type(struct rtnl_link *link, const char *type)
void rtnl_link_set_arptype(struct rtnl_link *link, unsigned int arptype)
Set hardware type of link object.
char * rtnl_link_get_qdisc(struct rtnl_link *link)
Return name of queueing discipline of link object.
int rtnl_link_get_gso_max_segs(struct rtnl_link *link, uint32_t *gso_max_segs)
Return maximum number of segments for generic segmentation offload.
struct rtnl_link * rtnl_link_get(struct nl_cache *cache, int ifindex)
Lookup link in cache by interface index.
struct nl_object * nl_object_alloc(struct nl_object_ops *ops)
Allocate a new object of kind specified by the operations handle.
int nl_cache_mngt_unregister(struct nl_cache_ops *ops)
Unregister a set of cache operations.
Attribute validation policy.
uint8_t nla_get_u8(const struct nlattr *nla)
Return value of 8 bit integer attribute.
struct rtnl_link * rtnl_link_alloc(void)
Allocate link object.
Unspecified type, binary data chunk.
struct nl_cache * nl_cache_mngt_require_safe(const char *name)
Return cache previously provided via nl_cache_mngt_provide()
void nl_object_get(struct nl_object *obj)
Acquire a reference on a object.
int nl_send_sync(struct nl_sock *sk, struct nl_msg *msg)
Finalize and transmit Netlink message and wait for ACK or error message.
char * nla_get_string(const struct nlattr *nla)
Return payload of string attribute.
int nl_pickup_keep_syserr(struct nl_sock *sk, int(*parser)(struct nl_cache_ops *, struct sockaddr_nl *, struct nlmsghdr *, struct nl_parser_param *), struct nl_object **result, int *syserror)
Pickup netlink answer, parse is and return object with preserving system error.
uint32_t nla_get_u32(const struct nlattr *nla)
Return payload of 32 bit integer attribute.
int rtnl_link_get_kernel(struct nl_sock *sk, int ifindex, const char *name, struct rtnl_link **result)
Get a link object directly from kernel.
int rtnl_link_build_get_request(int ifindex, const char *name, struct nl_msg **result)
Construct RTM_GETLINK netlink message.
int rtnl_link_build_add_request(struct rtnl_link *link, int flags, struct nl_msg **result)
Build a netlink message requesting the addition of new virtual link.
int rtnl_link_build_delete_request(const struct rtnl_link *link, struct nl_msg **result)
Build a netlink message requesting the deletion of a link.
int nlmsg_parse(struct nlmsghdr *nlh, int hdrlen, struct nlattr *tb[], int maxtype, struct nla_policy *policy)
parse attributes of a netlink message
struct nl_data * nl_data_alloc_attr(const struct nlattr *nla)
Allocate abstract data object based on netlink attribute.
void rtnl_link_set_carrier(struct rtnl_link *link, uint8_t status)
Set carrier of link object.
void rtnl_link_set_broadcast(struct rtnl_link *link, struct nl_addr *addr)
Set link layer broadcast address of link object.
struct nl_addr * nl_addr_get(struct nl_addr *addr)
Increase the reference counter of an abstract address.
void nl_addr_set_family(struct nl_addr *addr, int family)
Set address family.
struct nl_addr * nl_addr_alloc_attr(const struct nlattr *nla, int family)
Allocate abstract address based on Netlink attribute.
int rtnl_link_set_stat(struct rtnl_link *link, rtnl_link_stat_id_t id, const uint64_t value)
Set value of link statistics counter.
struct rtnl_link_af_ops * rtnl_link_af_ops_lookup(const unsigned int family)
Return operations of a specific link address family.
#define NLA_PUT_U8(msg, attrtype, value)
Add 8 bit integer attribute to netlink message.
uint64_t rtnl_link_get_stat(struct rtnl_link *link, rtnl_link_stat_id_t id)
Return value of link statistics counter.
NUL terminated character string.
Dump all attributes but no statistics.
char * rtnl_link_get_name(struct rtnl_link *link)
Return name of link object.
uint8_t rtnl_link_get_linkmode(struct rtnl_link *link)
Return link mode of link object.
uint32_t rtnl_link_get_num_tx_queues(struct rtnl_link *link)
Return number of TX queues.
int nl_addr_iszero(const struct nl_addr *addr)
Returns true if the address consists of all zeros.
void rtnl_link_set_num_tx_queues(struct rtnl_link *link, uint32_t nqueues)
Set number of TX queues.
struct nl_data * rtnl_link_get_phys_port_id(struct rtnl_link *link)
Return physical port id of link object.
struct nl_addr * rtnl_link_get_addr(struct rtnl_link *link)
Return link layer address of link object.
void rtnl_link_set_promiscuity(struct rtnl_link *link, uint32_t count)
Set link promiscuity count.
int rtnl_link_delete(struct nl_sock *sk, const struct rtnl_link *link)
Delete link.
unsigned int rtnl_link_get_flags(struct rtnl_link *link)
Return flags of link object.
uint8_t rtnl_link_get_operstate(struct rtnl_link *link)
Return operational status of link object.
int rtnl_link_get_num_vf(struct rtnl_link *link, uint32_t *num_vf)
Return number of PCI virtual functions of link object.
int rtnl_link_get_carrier_changes(struct rtnl_link *link, uint32_t *carrier_changes)
Return carrier on/off changes of link object.
void nl_cache_free(struct nl_cache *cache)
Free a cache.
int nla_nest_end(struct nl_msg *msg, struct nlattr *start)
Finalize nesting of attributes.
int nl_cache_mngt_register(struct nl_cache_ops *ops)
Register a set of cache operations.
int rtnl_link_enslave(struct nl_sock *sock, struct rtnl_link *master, struct rtnl_link *slave)
Enslave slave link to master link.
unsigned int rtnl_link_get_weight(struct rtnl_link *link)
unsigned int rtnl_link_get_arptype(struct rtnl_link *link)
Get hardware type of link object.
int rtnl_link_get_master(struct rtnl_link *link)
Return master link of link object.
double nl_cancel_down_bytes(unsigned long long l, char **unit)
Cancel down a byte counter.
int nla_memcpy(void *dest, const struct nlattr *src, int count)
Copy attribute payload to another memory area.
uint8_t rtnl_link_get_carrier(struct rtnl_link *link)
Return carrier status of link object.
int nla_parse_nested(struct nlattr *tb[], int maxtype, struct nlattr *nla, struct nla_policy *policy)
Create attribute index based on nested attribute.
int nla_type(const struct nlattr *nla)
Return type of the attribute.
void rtnl_link_set_ifalias(struct rtnl_link *link, const char *alias)
Set alias name of link object (SNMP IfAlias)
void rtnl_link_set_addr(struct rtnl_link *link, struct nl_addr *addr)
Set link layer address of link object.
void rtnl_link_set_family(struct rtnl_link *link, int family)
Set address family of link object.
void rtnl_link_set_name(struct rtnl_link *link, const char *name)
Set name of link object.
void * nla_data(const struct nlattr *nla)
Return pointer to the payload section.
unsigned int rtnl_link_get_mtu(struct rtnl_link *link)
Return maximum transmission unit of link object.
int rtnl_link_set_type(struct rtnl_link *link, const char *type)
Set type of link object.
#define NLA_PUT_U32(msg, attrtype, value)
Add 32 bit integer attribute to netlink message.
int nla_len(const struct nlattr *nla)
Return length of the payload .
void * rtnl_link_af_alloc(struct rtnl_link *link, const struct rtnl_link_af_ops *ops)
Allocate and return data buffer for link address family modules.
struct nl_data * nl_data_clone(const struct nl_data *src)
Clone an abstract data object.
int rtnl_link_get_family(struct rtnl_link *link)
Return address family of link object.
uint32_t rtnl_link_get_num_rx_queues(struct rtnl_link *link)
Return number of RX queues.
int rtnl_link_change(struct nl_sock *sk, struct rtnl_link *orig, struct rtnl_link *changes, int flags)
Change link.
int rtnl_link_af_data_compare(struct rtnl_link *a, struct rtnl_link *b, int family)
Compare af data for a link address family.
#define nla_for_each_nested(pos, nla, rem)
Iterate over a stream of nested attributes.
int rtnl_link_set_link_netnsid(struct rtnl_link *link, int32_t link_netnsid)
Set the netnsid of the link.
void rtnl_link_set_num_rx_queues(struct rtnl_link *link, uint32_t nqueues)
Set number of RX queues.
int rtnl_link_alloc_cache(struct nl_sock *sk, int family, struct nl_cache **result)
Allocate link cache and fill in all configured links.
void rtnl_link_set_linkmode(struct rtnl_link *link, uint8_t mode)
Set link mode of link object.
const char * rtnl_link_get_ifalias(struct rtnl_link *link)
Return alias name of link object (SNMP IfAlias)
int nlmsg_append(struct nl_msg *n, void *data, size_t len, int pad)
Append data to tail of a netlink message.
int nl_cache_refill(struct nl_sock *sk, struct nl_cache *cache)
(Re)fill a cache with the contents in the kernel.
void nl_object_put(struct nl_object *obj)
Release a reference from an object.
#define NLA_PUT_STRING(msg, attrtype, value)
Add string attribute to netlink message.
int rtnl_link_release(struct nl_sock *sock, struct rtnl_link *slave)
Release slave link from its master.
void nl_addr_put(struct nl_addr *addr)
Decrease the reference counter of an abstract address.
uint16_t type
Type of attribute or NLA_UNSPEC.
unsigned int rtnl_link_get_txqlen(struct rtnl_link *link)
Return transmission queue length.
char * rtnl_link_get_phys_port_name(struct rtnl_link *link)
Return physical port name of link object.
struct nl_msg * nlmsg_alloc_simple(int nlmsgtype, int flags)
Allocate a new netlink message.
char * rtnl_link_i2name(struct nl_cache *cache, int ifindex, char *dst, size_t len)
Translate interface index to corresponding link name.
int rtnl_link_get_ifindex(struct rtnl_link *link)
Return interface index of link object.
void nl_cache_set_flags(struct nl_cache *cache, unsigned int flags)
Set cache flags.
uint32_t rtnl_link_get_promiscuity(struct rtnl_link *link)
Return link promiscuity count.
void rtnl_link_set_flags(struct rtnl_link *link, unsigned int flags)
Set flags of link object.
void rtnl_link_set_mtu(struct rtnl_link *link, unsigned int mtu)
Set Maximum Transmission Unit of link object.
void rtnl_link_set_qdisc(struct rtnl_link *link, const char *name)
Set queueing discipline name of link object.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
void rtnl_link_set_weight(struct rtnl_link *link, unsigned int weight)
char * rtnl_link_get_type(struct rtnl_link *link)
Return type of link.
void rtnl_link_put(struct rtnl_link *link)
Return a link object reference.
void rtnl_link_af_ops_put(struct rtnl_link_af_ops *ops)
Give back reference to a set of operations.
int rtnl_link_name2i(struct nl_cache *cache, const char *name)
Translate link name to corresponding interface index.
struct nl_addr * rtnl_link_get_broadcast(struct rtnl_link *link)
Return link layer broadcast address of link object.
void rtnl_link_set_txqlen(struct rtnl_link *link, unsigned int txqlen)
Set transmission queue length.
int rtnl_link_build_change_request(struct rtnl_link *orig, struct rtnl_link *changes, int flags, struct nl_msg **result)
Build a netlink message requesting the modification of link.
int nl_send_auto(struct nl_sock *sk, struct nl_msg *msg)
Finalize and transmit Netlink message.
char * rtnl_link_get_info_type(struct rtnl_link *link)
void rtnl_link_set_operstate(struct rtnl_link *link, uint8_t status)
Set operational status of link object.
int nla_put(struct nl_msg *msg, int attrtype, int datalen, const void *data)
Add a unspecific attribute to netlink message.
int rtnl_link_add(struct nl_sock *sk, struct rtnl_link *link, int flags)
Add virtual link.
void rtnl_link_set_group(struct rtnl_link *link, uint32_t group)
Set the group identifier of a link object.
#define NLA_PUT_S32(msg, attrtype, value)
Add 32 bit signed integer attribute to netlink message.
Dump all attributes including statistics.
int rtnl_link_release_ifindex(struct nl_sock *sock, int slave)
Release slave link from its master.
void rtnl_link_info_ops_put(struct rtnl_link_info_ops *ops)
Give back reference to a set of operations.
int rtnl_link_get_gso_max_size(struct rtnl_link *link, uint32_t *gso_max_size)
Return maximum size for generic segmentation offload.
size_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize)
Copy string attribute payload to a buffer.
struct nl_cache * nl_cache_alloc(struct nl_cache_ops *ops)
Allocate new cache.
int rtnl_link_enslave_ifindex(struct nl_sock *sock, int master, int slave)
Enslave slave link to master link.
struct rtnl_link_info_ops * rtnl_link_info_ops_lookup(const char *name)
Return operations of a specific link info type.
struct nlattr * nla_nest_start(struct nl_msg *msg, int attrtype)
Start a new level of nested attributes.
void nl_data_free(struct nl_data *data)
Free an abstract data object.
char * nl_addr2str(const struct nl_addr *addr, char *buf, size_t size)
Convert abstract address object to character string.