109 #include <netlink-private/netlink.h> 110 #include <netlink/netlink.h> 111 #include <netlink/route/rtnl.h> 112 #include <netlink/route/addr.h> 113 #include <netlink/route/route.h> 114 #include <netlink/route/link.h> 115 #include <netlink/utils.h> 118 #define ADDR_ATTR_FAMILY 0x0001 119 #define ADDR_ATTR_PREFIXLEN 0x0002 120 #define ADDR_ATTR_FLAGS 0x0004 121 #define ADDR_ATTR_SCOPE 0x0008 122 #define ADDR_ATTR_IFINDEX 0x0010 123 #define ADDR_ATTR_LABEL 0x0020 124 #define ADDR_ATTR_CACHEINFO 0x0040 125 #define ADDR_ATTR_PEER 0x0080 126 #define ADDR_ATTR_LOCAL 0x0100 127 #define ADDR_ATTR_BROADCAST 0x0200 128 #define ADDR_ATTR_MULTICAST 0x0400 129 #define ADDR_ATTR_ANYCAST 0x0800 131 static struct nl_cache_ops rtnl_addr_ops;
132 static struct nl_object_ops addr_obj_ops;
135 static void addr_constructor(
struct nl_object *obj)
137 struct rtnl_addr *addr = nl_object_priv(obj);
139 addr->a_scope = RT_SCOPE_NOWHERE;
142 static void addr_free_data(
struct nl_object *obj)
144 struct rtnl_addr *addr = nl_object_priv(obj);
157 static int addr_clone(
struct nl_object *_dst,
struct nl_object *_src)
159 struct rtnl_addr *dst = nl_object_priv(_dst);
160 struct rtnl_addr *src = nl_object_priv(_src);
164 dst->a_link = src->a_link;
179 if (src->a_multicast)
190 static struct nla_policy addr_policy[IFA_MAX+1] = {
192 .maxlen = IFNAMSIZ },
193 [IFA_CACHEINFO] = { .minlen =
sizeof(
struct ifa_cacheinfo) },
196 static int addr_msg_parser(
struct nl_cache_ops *ops,
struct sockaddr_nl *who,
197 struct nlmsghdr *nlh,
struct nl_parser_param *pp)
199 struct rtnl_addr *addr;
200 struct ifaddrmsg *ifa;
201 struct nlattr *tb[IFA_MAX+1];
203 struct nl_cache *link_cache;
204 struct nl_addr *plen_addr = NULL;
206 addr = rtnl_addr_alloc();
210 addr->ce_msgtype = nlh->nlmsg_type;
212 err =
nlmsg_parse(nlh,
sizeof(*ifa), tb, IFA_MAX, addr_policy);
217 addr->a_family = family = ifa->ifa_family;
218 addr->a_prefixlen = ifa->ifa_prefixlen;
219 addr->a_scope = ifa->ifa_scope;
220 addr->a_flags = tb[IFA_FLAGS] ?
nla_get_u32(tb[IFA_FLAGS]) :
222 addr->a_ifindex = ifa->ifa_index;
224 addr->ce_mask = (ADDR_ATTR_FAMILY | ADDR_ATTR_PREFIXLEN |
225 ADDR_ATTR_FLAGS | ADDR_ATTR_SCOPE | ADDR_ATTR_IFINDEX);
228 nla_strlcpy(addr->a_label, tb[IFA_LABEL], IFNAMSIZ);
229 addr->ce_mask |= ADDR_ATTR_LABEL;
233 if (tb[IFA_CACHEINFO]) {
234 struct ifa_cacheinfo *ca;
237 addr->a_cacheinfo.aci_prefered = ca->ifa_prefered;
238 addr->a_cacheinfo.aci_valid = ca->ifa_valid;
239 addr->a_cacheinfo.aci_cstamp = ca->cstamp;
240 addr->a_cacheinfo.aci_tstamp = ca->tstamp;
241 addr->ce_mask |= ADDR_ATTR_CACHEINFO;
244 if (family == AF_INET) {
255 addr->ce_mask |= ADDR_ATTR_LOCAL;
274 addr->ce_mask |= ADDR_ATTR_PEER;
276 plen_addr = addr->a_local;
282 addr->ce_mask |= ADDR_ATTR_LOCAL;
283 plen_addr = addr->a_local;
286 if (tb[IFA_ADDRESS]) {
296 if (!tb[IFA_LOCAL] || !
nl_addr_cmp(a, addr->a_local)) {
299 addr->ce_mask |= ADDR_ATTR_LOCAL;
302 addr->ce_mask |= ADDR_ATTR_PEER;
313 if (tb[IFA_BROADCAST]) {
318 addr->ce_mask |= ADDR_ATTR_BROADCAST;
322 if (tb[IFA_MULTICAST]) {
325 if (!addr->a_multicast)
328 addr->ce_mask |= ADDR_ATTR_MULTICAST;
332 if (tb[IFA_ANYCAST]) {
335 if (!addr->a_anycast)
338 addr->ce_mask |= ADDR_ATTR_ANYCAST;
341 if ((link_cache = __nl_cache_mngt_require(
"route/link"))) {
345 rtnl_addr_set_link(addr, link);
352 err = pp->pp_cb((
struct nl_object *) addr, pp);
363 static int addr_request_update(
struct nl_cache *cache,
struct nl_sock *sk)
368 static void addr_dump_line(
struct nl_object *obj,
struct nl_dump_params *p)
370 struct rtnl_addr *addr = (
struct rtnl_addr *) obj;
371 struct nl_cache *link_cache;
376 if (addr->ce_mask & ADDR_ATTR_LOCAL)
377 nl_dump_line(p,
"%s",
380 nl_dump_line(p,
"none");
382 if (addr->ce_mask & ADDR_ATTR_PEER)
386 nl_dump(p,
" %s ", nl_af2str(addr->a_family, buf,
sizeof(buf)));
393 nl_dump(p,
"dev %d ", addr->a_ifindex);
396 rtnl_scope2str(addr->a_scope, buf,
sizeof(buf)));
398 rtnl_addr_flags2str(addr->a_flags, buf,
sizeof(buf));
405 nl_cache_put(link_cache);
408 static void addr_dump_details(
struct nl_object *obj,
struct nl_dump_params *p)
410 struct rtnl_addr *addr = (
struct rtnl_addr *) obj;
413 addr_dump_line(obj, p);
415 if (addr->ce_mask & (ADDR_ATTR_LABEL | ADDR_ATTR_BROADCAST |
416 ADDR_ATTR_MULTICAST)) {
417 nl_dump_line(p,
" ");
419 if (addr->ce_mask & ADDR_ATTR_LABEL)
420 nl_dump(p,
" label %s", addr->a_label);
422 if (addr->ce_mask & ADDR_ATTR_BROADCAST)
426 if (addr->ce_mask & ADDR_ATTR_MULTICAST)
431 if (addr->ce_mask & ADDR_ATTR_ANYCAST)
439 if (addr->ce_mask & ADDR_ATTR_CACHEINFO) {
440 struct rtnl_addr_cacheinfo *ci = &addr->a_cacheinfo;
442 nl_dump_line(p,
" valid-lifetime %s",
443 ci->aci_valid == 0xFFFFFFFFU ?
"forever" :
447 nl_dump(p,
" preferred-lifetime %s\n",
448 ci->aci_prefered == 0xFFFFFFFFU ?
"forever" :
452 nl_dump_line(p,
" created boot-time+%s ",
456 nl_dump(p,
"last-updated boot-time+%s\n",
462 static void addr_dump_stats(
struct nl_object *obj,
struct nl_dump_params *p)
464 addr_dump_details(obj, p);
467 static uint32_t addr_id_attrs_get(
struct nl_object *obj)
469 struct rtnl_addr *addr = (
struct rtnl_addr *)obj;
471 switch (addr->a_family) {
473 return (ADDR_ATTR_FAMILY | ADDR_ATTR_IFINDEX |
474 ADDR_ATTR_LOCAL | ADDR_ATTR_PREFIXLEN |
477 return (ADDR_ATTR_FAMILY | ADDR_ATTR_IFINDEX |
480 return (ADDR_ATTR_FAMILY | ADDR_ATTR_IFINDEX |
481 ADDR_ATTR_LOCAL | ADDR_ATTR_PREFIXLEN);
485 static uint64_t addr_compare(
struct nl_object *_a,
struct nl_object *_b,
486 uint64_t attrs,
int flags)
488 struct rtnl_addr *a = (
struct rtnl_addr *) _a;
489 struct rtnl_addr *b = (
struct rtnl_addr *) _b;
492 #define ADDR_DIFF(ATTR, EXPR) ATTR_DIFF(attrs, ADDR_ATTR_##ATTR, a, b, EXPR) 494 diff |= ADDR_DIFF(IFINDEX, a->a_ifindex != b->a_ifindex);
495 diff |= ADDR_DIFF(FAMILY, a->a_family != b->a_family);
496 diff |= ADDR_DIFF(SCOPE, a->a_scope != b->a_scope);
497 diff |= ADDR_DIFF(LABEL, strcmp(a->a_label, b->a_label));
498 if (attrs & ADDR_ATTR_PEER) {
499 if ( (flags & ID_COMPARISON)
500 && a->a_family == AF_INET
501 && b->a_family == AF_INET
504 && a->a_prefixlen == b->a_prefixlen) {
510 diff |= ADDR_DIFF(PEER,
nl_addr_cmp(a->a_peer, b->a_peer));
512 diff |= ADDR_DIFF(LOCAL,
nl_addr_cmp(a->a_local, b->a_local));
513 diff |= ADDR_DIFF(MULTICAST,
nl_addr_cmp(a->a_multicast,
515 diff |= ADDR_DIFF(BROADCAST,
nl_addr_cmp(a->a_bcast, b->a_bcast));
516 diff |= ADDR_DIFF(ANYCAST,
nl_addr_cmp(a->a_anycast, b->a_anycast));
517 diff |= ADDR_DIFF(CACHEINFO, memcmp(&a->a_cacheinfo, &b->a_cacheinfo,
518 sizeof (a->a_cacheinfo)));
520 if (flags & LOOSE_COMPARISON)
521 diff |= ADDR_DIFF(FLAGS,
522 (a->a_flags ^ b->a_flags) & b->a_flag_mask);
524 diff |= ADDR_DIFF(FLAGS, a->a_flags != b->a_flags);
531 static const struct trans_tbl addr_attrs[] = {
532 __ADD(ADDR_ATTR_FAMILY, family),
533 __ADD(ADDR_ATTR_PREFIXLEN, prefixlen),
534 __ADD(ADDR_ATTR_FLAGS, flags),
535 __ADD(ADDR_ATTR_SCOPE, scope),
536 __ADD(ADDR_ATTR_IFINDEX, ifindex),
537 __ADD(ADDR_ATTR_LABEL, label),
538 __ADD(ADDR_ATTR_CACHEINFO, cacheinfo),
539 __ADD(ADDR_ATTR_PEER, peer),
540 __ADD(ADDR_ATTR_LOCAL, local),
541 __ADD(ADDR_ATTR_BROADCAST, broadcast),
542 __ADD(ADDR_ATTR_MULTICAST, multicast),
545 static char *addr_attrs2str(
int attrs,
char *buf,
size_t len)
547 return __flags2str(attrs, buf, len, addr_attrs,
548 ARRAY_SIZE(addr_attrs));
556 struct rtnl_addr *rtnl_addr_alloc(
void)
561 void rtnl_addr_put(
struct rtnl_addr *addr)
573 int rtnl_addr_alloc_cache(
struct nl_sock *sk,
struct nl_cache **result)
593 struct nl_addr *addr)
597 if (cache->c_ops != &rtnl_addr_ops)
600 nl_list_for_each_entry(a, &cache->c_items, ce_list) {
601 if (ifindex && a->a_ifindex != ifindex)
604 if (a->ce_mask & ADDR_ATTR_LOCAL &&
616 static int build_addr_msg(
struct rtnl_addr *tmpl,
int cmd,
int flags,
617 struct nl_msg **result)
620 struct ifaddrmsg am = {
621 .ifa_family = tmpl->a_family,
622 .ifa_index = tmpl->a_ifindex,
623 .ifa_prefixlen = tmpl->a_prefixlen,
624 .ifa_flags = tmpl->a_flags,
627 if (tmpl->ce_mask & ADDR_ATTR_SCOPE)
628 am.ifa_scope = tmpl->a_scope;
631 if (tmpl->a_family == AF_INET &&
632 tmpl->ce_mask & ADDR_ATTR_LOCAL &&
634 am.ifa_scope = RT_SCOPE_HOST;
636 am.ifa_scope = RT_SCOPE_UNIVERSE;
643 if (
nlmsg_append(msg, &am,
sizeof(am), NLMSG_ALIGNTO) < 0)
644 goto nla_put_failure;
646 if (tmpl->ce_mask & ADDR_ATTR_LOCAL)
649 if (tmpl->ce_mask & ADDR_ATTR_PEER)
651 else if (tmpl->ce_mask & ADDR_ATTR_LOCAL)
654 if (tmpl->ce_mask & ADDR_ATTR_LABEL)
657 if (tmpl->ce_mask & ADDR_ATTR_BROADCAST)
660 if (tmpl->ce_mask & ADDR_ATTR_CACHEINFO) {
661 struct ifa_cacheinfo ca = {
662 .ifa_valid = tmpl->a_cacheinfo.aci_valid,
663 .ifa_prefered = tmpl->a_cacheinfo.aci_prefered,
666 NLA_PUT(msg, IFA_CACHEINFO,
sizeof(ca), &ca);
669 if (tmpl->a_flags & ~0xFF) {
719 struct nl_msg **result)
721 uint32_t required = ADDR_ATTR_IFINDEX | ADDR_ATTR_FAMILY |
722 ADDR_ATTR_PREFIXLEN | ADDR_ATTR_LOCAL;
724 if ((addr->ce_mask & required) != required)
725 return -NLE_MISSING_ATTR;
727 return build_addr_msg(addr, RTM_NEWADDR, NLM_F_CREATE | flags, result);
757 return wait_for_ack(sk);
792 struct nl_msg **result)
794 uint32_t required = ADDR_ATTR_IFINDEX | ADDR_ATTR_FAMILY;
796 if ((addr->ce_mask & required) != required)
797 return -NLE_MISSING_ATTR;
799 return build_addr_msg(addr, RTM_DELADDR, flags, result);
829 return wait_for_ack(sk);
839 int rtnl_addr_set_label(
struct rtnl_addr *addr,
const char *label)
841 if (strlen(label) >
sizeof(addr->a_label) - 1)
844 strcpy(addr->a_label, label);
845 addr->ce_mask |= ADDR_ATTR_LABEL;
850 char *rtnl_addr_get_label(
struct rtnl_addr *addr)
852 if (addr->ce_mask & ADDR_ATTR_LABEL)
853 return addr->a_label;
858 void rtnl_addr_set_ifindex(
struct rtnl_addr *addr,
int ifindex)
860 addr->a_ifindex = ifindex;
861 addr->ce_mask |= ADDR_ATTR_IFINDEX;
864 int rtnl_addr_get_ifindex(
struct rtnl_addr *addr)
866 return addr->a_ifindex;
869 void rtnl_addr_set_link(
struct rtnl_addr *addr,
struct rtnl_link *link)
878 addr->a_ifindex = link->l_index;
879 addr->ce_mask |= ADDR_ATTR_IFINDEX;
882 struct rtnl_link *rtnl_addr_get_link(
struct rtnl_addr *addr)
892 void rtnl_addr_set_family(
struct rtnl_addr *addr,
int family)
894 addr->a_family = family;
895 addr->ce_mask |= ADDR_ATTR_FAMILY;
898 int rtnl_addr_get_family(
struct rtnl_addr *addr)
900 return addr->a_family;
921 addr->a_prefixlen = prefixlen;
924 addr->ce_mask |= ADDR_ATTR_PREFIXLEN;
926 addr->ce_mask &= ~ADDR_ATTR_PREFIXLEN;
934 else if (addr->a_local)
938 int rtnl_addr_get_prefixlen(
struct rtnl_addr *addr)
940 return addr->a_prefixlen;
943 void rtnl_addr_set_scope(
struct rtnl_addr *addr,
int scope)
945 addr->a_scope = scope;
946 addr->ce_mask |= ADDR_ATTR_SCOPE;
949 int rtnl_addr_get_scope(
struct rtnl_addr *addr)
951 return addr->a_scope;
954 void rtnl_addr_set_flags(
struct rtnl_addr *addr,
unsigned int flags)
956 addr->a_flag_mask |= flags;
957 addr->a_flags |= flags;
958 addr->ce_mask |= ADDR_ATTR_FLAGS;
961 void rtnl_addr_unset_flags(
struct rtnl_addr *addr,
unsigned int flags)
963 addr->a_flag_mask |= flags;
964 addr->a_flags &= ~flags;
965 addr->ce_mask |= ADDR_ATTR_FLAGS;
968 unsigned int rtnl_addr_get_flags(
struct rtnl_addr *addr)
970 return addr->a_flags;
973 static inline int __assign_addr(
struct rtnl_addr *addr,
struct nl_addr **pos,
974 struct nl_addr *
new,
int flag)
977 if (addr->ce_mask & ADDR_ATTR_FAMILY) {
978 if (new->a_family != addr->a_family)
979 return -NLE_AF_MISMATCH;
981 addr->a_family =
new->a_family;
987 addr->ce_mask |= (flag | ADDR_ATTR_FAMILY);
993 addr->ce_mask &= ~flag;
999 int rtnl_addr_set_local(
struct rtnl_addr *addr,
struct nl_addr *local)
1004 if ((addr->ce_mask & ADDR_ATTR_PEER) && local &&
1008 err = __assign_addr(addr, &addr->a_local, local, ADDR_ATTR_LOCAL);
1013 if (!(addr->ce_mask & ADDR_ATTR_PEER))
1019 struct nl_addr *rtnl_addr_get_local(
struct rtnl_addr *addr)
1021 return addr->a_local;
1024 int rtnl_addr_set_peer(
struct rtnl_addr *addr,
struct nl_addr *peer)
1028 if (peer && peer->a_family != AF_INET)
1029 return -NLE_AF_NOSUPPORT;
1031 err = __assign_addr(addr, &addr->a_peer, peer, ADDR_ATTR_PEER);
1040 struct nl_addr *rtnl_addr_get_peer(
struct rtnl_addr *addr)
1042 return addr->a_peer;
1045 int rtnl_addr_set_broadcast(
struct rtnl_addr *addr,
struct nl_addr *bcast)
1047 if (bcast && bcast->a_family != AF_INET)
1048 return -NLE_AF_NOSUPPORT;
1050 return __assign_addr(addr, &addr->a_bcast, bcast, ADDR_ATTR_BROADCAST);
1053 struct nl_addr *rtnl_addr_get_broadcast(
struct rtnl_addr *addr)
1055 return addr->a_bcast;
1058 int rtnl_addr_set_multicast(
struct rtnl_addr *addr,
struct nl_addr *multicast)
1060 if (multicast && multicast->a_family != AF_INET6)
1061 return -NLE_AF_NOSUPPORT;
1063 return __assign_addr(addr, &addr->a_multicast, multicast,
1064 ADDR_ATTR_MULTICAST);
1067 struct nl_addr *rtnl_addr_get_multicast(
struct rtnl_addr *addr)
1069 return addr->a_multicast;
1072 int rtnl_addr_set_anycast(
struct rtnl_addr *addr,
struct nl_addr *anycast)
1074 if (anycast && anycast->a_family != AF_INET6)
1075 return -NLE_AF_NOSUPPORT;
1077 return __assign_addr(addr, &addr->a_anycast, anycast,
1081 struct nl_addr *rtnl_addr_get_anycast(
struct rtnl_addr *addr)
1083 return addr->a_anycast;
1086 uint32_t rtnl_addr_get_valid_lifetime(
struct rtnl_addr *addr)
1088 if (addr->ce_mask & ADDR_ATTR_CACHEINFO)
1089 return addr->a_cacheinfo.aci_valid;
1094 void rtnl_addr_set_valid_lifetime(
struct rtnl_addr *addr, uint32_t lifetime)
1096 addr->a_cacheinfo.aci_valid = lifetime;
1097 addr->ce_mask |= ADDR_ATTR_CACHEINFO;
1100 uint32_t rtnl_addr_get_preferred_lifetime(
struct rtnl_addr *addr)
1102 if (addr->ce_mask & ADDR_ATTR_CACHEINFO)
1103 return addr->a_cacheinfo.aci_prefered;
1108 void rtnl_addr_set_preferred_lifetime(
struct rtnl_addr *addr, uint32_t lifetime)
1110 addr->a_cacheinfo.aci_prefered = lifetime;
1111 addr->ce_mask |= ADDR_ATTR_CACHEINFO;
1114 uint32_t rtnl_addr_get_create_time(
struct rtnl_addr *addr)
1116 return addr->a_cacheinfo.aci_cstamp;
1119 uint32_t rtnl_addr_get_last_update_time(
struct rtnl_addr *addr)
1121 return addr->a_cacheinfo.aci_tstamp;
1131 static const struct trans_tbl addr_flags[] = {
1132 __ADD(IFA_F_SECONDARY, secondary),
1133 __ADD(IFA_F_NODAD, nodad),
1134 __ADD(IFA_F_OPTIMISTIC, optimistic),
1135 __ADD(IFA_F_HOMEADDRESS, homeaddress),
1136 __ADD(IFA_F_DEPRECATED, deprecated),
1137 __ADD(IFA_F_TENTATIVE, tentative),
1138 __ADD(IFA_F_PERMANENT, permanent),
1139 __ADD(IFA_F_MANAGETEMPADDR, mngtmpaddr),
1140 __ADD(IFA_F_NOPREFIXROUTE, noprefixroute),
1143 char *rtnl_addr_flags2str(
int flags,
char *buf,
size_t size)
1145 return __flags2str(flags, buf, size, addr_flags,
1146 ARRAY_SIZE(addr_flags));
1149 int rtnl_addr_str2flags(
const char *name)
1151 return __str2flags(name, addr_flags, ARRAY_SIZE(addr_flags));
1156 static struct nl_object_ops addr_obj_ops = {
1157 .oo_name =
"route/addr",
1158 .oo_size =
sizeof(
struct rtnl_addr),
1159 .oo_constructor = addr_constructor,
1160 .oo_free_data = addr_free_data,
1161 .oo_clone = addr_clone,
1167 .oo_compare = addr_compare,
1168 .oo_attrs2str = addr_attrs2str,
1169 .oo_id_attrs_get = addr_id_attrs_get,
1170 .oo_id_attrs = (ADDR_ATTR_FAMILY | ADDR_ATTR_IFINDEX |
1171 ADDR_ATTR_LOCAL | ADDR_ATTR_PREFIXLEN),
1174 static struct nl_af_group addr_groups[] = {
1175 { AF_INET, RTNLGRP_IPV4_IFADDR },
1176 { AF_INET6, RTNLGRP_IPV6_IFADDR },
1177 { END_OF_GROUP_LIST },
1180 static struct nl_cache_ops rtnl_addr_ops = {
1181 .co_name =
"route/addr",
1182 .co_hdrsize =
sizeof(
struct ifaddrmsg),
1184 { RTM_NEWADDR, NL_ACT_NEW,
"new" },
1185 { RTM_DELADDR, NL_ACT_DEL,
"del" },
1186 { RTM_GETADDR, NL_ACT_GET,
"get" },
1187 END_OF_MSGTYPES_LIST,
1189 .co_protocol = NETLINK_ROUTE,
1190 .co_groups = addr_groups,
1191 .co_request_update = addr_request_update,
1192 .co_msg_parser = addr_msg_parser,
1193 .co_obj_ops = &addr_obj_ops,
1196 static void __init addr_init(
void)
1201 static void __exit addr_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.
void nl_addr_set_prefixlen(struct nl_addr *addr, int prefixlen)
Set the prefix length of an abstract address.
void nlmsg_free(struct nl_msg *msg)
Release a reference from an netlink message.
int nl_addr_cmp(const struct nl_addr *a, const struct nl_addr *b)
Compare abstract addresses.
void * nlmsg_data(const struct nlmsghdr *nlh)
Return pointer to message payload.
#define NLA_PUT_ADDR(msg, attrtype, addr)
Add address attribute to netlink message.
unsigned int nl_addr_get_prefixlen(const struct nl_addr *addr)
Return prefix length of abstract address object.
void rtnl_addr_set_prefixlen(struct rtnl_addr *addr, int prefixlen)
Set the prefix length / netmask.
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.
int rtnl_addr_build_add_request(struct rtnl_addr *addr, int flags, struct nl_msg **result)
Build netlink request message to request addition of new address.
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.
struct nl_addr * nl_addr_build(int family, const void *buf, size_t size)
Allocate abstract address based on a binary address.
char * nl_msec2str(uint64_t msec, char *buf, size_t len)
Convert milliseconds to a character string.
uint32_t nla_get_u32(const struct nlattr *nla)
Return payload of 32 bit integer attribute.
int nlmsg_parse(struct nlmsghdr *nlh, int hdrlen, struct nlattr *tb[], int maxtype, struct nla_policy *policy)
parse attributes of a netlink message
struct rtnl_addr * rtnl_addr_get(struct nl_cache *cache, int ifindex, struct nl_addr *addr)
Search address in cache.
struct nl_addr * nl_addr_get(struct nl_addr *addr)
Increase the reference counter of an abstract address.
struct nl_addr * nl_addr_alloc_attr(const struct nlattr *nla, int family)
Allocate abstract address based on Netlink attribute.
NUL terminated character string.
Dump all attributes but no statistics.
int rtnl_addr_delete(struct nl_sock *sk, struct rtnl_addr *addr, int flags)
Request deletion of an address.
int nl_cache_mngt_register(struct nl_cache_ops *ops)
Register a set of cache operations.
int nl_rtgen_request(struct nl_sock *sk, int type, int family, int flags)
Send routing netlink request message.
#define NLA_PUT(msg, attrtype, attrlen, data)
Add unspecific attribute to netlink message.
void * nla_data(const struct nlattr *nla)
Return pointer to the payload section.
int rtnl_addr_build_delete_request(struct rtnl_addr *addr, int flags, struct nl_msg **result)
Build a netlink request message to request deletion of an address.
#define NLA_PUT_U32(msg, attrtype, value)
Add 32 bit integer attribute to netlink message.
int nlmsg_append(struct nl_msg *n, void *data, size_t len, int pad)
Append data to tail of a netlink message.
int rtnl_addr_add(struct nl_sock *sk, struct rtnl_addr *addr, int flags)
Request addition of new address.
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.
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.
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.
void nl_dump(struct nl_dump_params *params, const char *fmt,...)
Dump a formatted character string.
void rtnl_link_put(struct rtnl_link *link)
Return a link object reference.
int nl_addr_cmp_prefix(const struct nl_addr *a, const struct nl_addr *b)
Compare the prefix of two abstract addresses.
Dump all attributes including statistics.
void * nl_addr_get_binary_addr(const struct nl_addr *addr)
Get binary address of abstract address object.
int nl_cache_alloc_and_fill(struct nl_cache_ops *ops, struct nl_sock *sock, struct nl_cache **result)
Allocate new cache and fill it.
size_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize)
Copy string attribute payload to a buffer.
char * nl_addr2str(const struct nl_addr *addr, char *buf, size_t size)
Convert abstract address object to character string.