--- /dev/null
+/*
+ * lib/route/neightbl.c neighbour tables
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation version 2.1
+ * of the License.
+ *
+ * Copyright (c) 2003-2006 Thomas Graf <tgraf@suug.ch>
+ */
+
+/**
+ * @ingroup rtnl
+ * @defgroup neightbl Neighbour Tables
+ * @brief
+ * @{
+ */
+
+#include <netlink-local.h>
+#include <netlink/netlink.h>
+#include <netlink/utils.h>
+#include <netlink/route/rtnl.h>
+#include <netlink/route/neightbl.h>
+#include <netlink/route/link.h>
+
+/** @cond SKIP */
+#define NEIGHTBL_ATTR_FAMILY 0x001
+#define NEIGHTBL_ATTR_STATS 0x002
+#define NEIGHTBL_ATTR_NAME 0x004
+#define NEIGHTBL_ATTR_THRESH1 0x008
+#define NEIGHTBL_ATTR_THRESH2 0x010
+#define NEIGHTBL_ATTR_THRESH3 0x020
+#define NEIGHTBL_ATTR_CONFIG 0x040
+#define NEIGHTBL_ATTR_PARMS 0x080
+#define NEIGHTBL_ATTR_GC_INTERVAL 0x100
+
+#define NEIGHTBLPARM_ATTR_IFINDEX 0x0001
+#define NEIGHTBLPARM_ATTR_REFCNT 0x0002
+#define NEIGHTBLPARM_ATTR_QUEUE_LEN 0x0004
+#define NEIGHTBLPARM_ATTR_APP_PROBES 0x0008
+#define NEIGHTBLPARM_ATTR_UCAST_PROBES 0x0010
+#define NEIGHTBLPARM_ATTR_MCAST_PROBES 0x0020
+#define NEIGHTBLPARM_ATTR_PROXY_QLEN 0x0040
+#define NEIGHTBLPARM_ATTR_REACHABLE_TIME 0x0080
+#define NEIGHTBLPARM_ATTR_BASE_REACHABLE_TIME 0x0100
+#define NEIGHTBLPARM_ATTR_RETRANS_TIME 0x0200
+#define NEIGHTBLPARM_ATTR_GC_STALETIME 0x0400
+#define NEIGHTBLPARM_ATTR_DELAY_PROBE_TIME 0x0800
+#define NEIGHTBLPARM_ATTR_ANYCAST_DELAY 0x1000
+#define NEIGHTBLPARM_ATTR_PROXY_DELAY 0x2000
+#define NEIGHTBLPARM_ATTR_LOCKTIME 0x4000
+
+static struct nl_cache_ops rtnl_neightbl_ops;
+/** @endcond */
+
+static int neightbl_filter(struct nl_object *obj, struct nl_object *filter)
+{
+ struct rtnl_neightbl *o = (struct rtnl_neightbl *) obj;
+ struct rtnl_neightbl *f = (struct rtnl_neightbl *) filter;
+ struct rtnl_neightbl_parms *op = &o->nt_parms;
+ struct rtnl_neightbl_parms *fp = &f->nt_parms;
+
+#define REQ(F) (f->nt_mask & NEIGHTBL_ATTR_##F)
+#define AVAIL(F) (o->nt_mask & NEIGHTBL_ATTR_##F)
+#define _O(F, EXPR) (REQ(F) && (!AVAIL(F) || (EXPR)))
+#define _C(F, N) (REQ(F) && (!AVAIL(F) || (o->N != f->N)))
+
+ if (_C(FAMILY, nt_family) ||
+ _O(NAME, strcmp(o->nt_name, f->nt_name)) ||
+ _C(THRESH1, nt_gc_thresh1) ||
+ _C(THRESH2, nt_gc_thresh2) ||
+ _C(THRESH3, nt_gc_thresh3) ||
+ _C(GC_INTERVAL, nt_gc_interval))
+ return 0;
+#undef REQ
+#undef AVAIL
+#undef _O
+#undef _C
+
+ if (!(f->nt_mask & NEIGHTBL_ATTR_PARMS) &&
+ !(o->nt_mask & NEIGHTBL_ATTR_PARMS))
+ return 1;
+
+#define REQ(F) (fp->ntp_mask & NEIGHTBLPARM_ATTR_##F)
+#define AVAIL(F) (op->ntp_mask & NEIGHTBLPARM_ATTR_##F)
+#define _C(F, N) (REQ(F) && (!AVAIL(F) || (op->N != fp->N)))
+ if (_C(IFINDEX, ntp_ifindex) ||
+ _C(QUEUE_LEN, ntp_queue_len) ||
+ _C(APP_PROBES, ntp_app_probes) ||
+ _C(UCAST_PROBES, ntp_ucast_probes) ||
+ _C(MCAST_PROBES, ntp_mcast_probes) ||
+ _C(PROXY_QLEN, ntp_proxy_qlen) ||
+ _C(LOCKTIME, ntp_locktime) ||
+ _C(RETRANS_TIME, ntp_retrans_time) ||
+ _C(BASE_REACHABLE_TIME, ntp_base_reachable_time) ||
+ _C(GC_STALETIME, ntp_gc_stale_time) ||
+ _C(DELAY_PROBE_TIME, ntp_probe_delay) ||
+ _C(ANYCAST_DELAY, ntp_anycast_delay) ||
+ _C(PROXY_DELAY, ntp_proxy_delay))
+ return 0;
+#undef REQ
+#undef AVAIL
+#undef _C
+
+ return 1;
+}
+
+static struct nla_policy neightbl_policy[NDTA_MAX+1] = {
+ [NDTA_NAME] = { .type = NLA_STRING,
+ .maxlen = NTBLNAMSIZ },
+ [NDTA_THRESH1] = { .type = NLA_U32 },
+ [NDTA_THRESH2] = { .type = NLA_U32 },
+ [NDTA_THRESH3] = { .type = NLA_U32 },
+ [NDTA_GC_INTERVAL] = { .type = NLA_U32 },
+ [NDTA_CONFIG] = { .minlen = sizeof(struct ndt_config) },
+ [NDTA_STATS] = { .minlen = sizeof(struct ndt_stats) },
+ [NDTA_PARMS] = { .type = NLA_NESTED },
+};
+
+static int neightbl_msg_parser(struct sockaddr_nl *who, struct nlmsghdr *n,
+ void *arg)
+{
+ struct rtnl_neightbl *ntbl;
+ struct nlattr *tb[NDTA_MAX + 1];
+ struct nl_parser_param *pp = arg;
+ struct rtgenmsg *rtmsg;
+ int err;
+
+ ntbl = rtnl_neightbl_alloc();
+ if (!ntbl) {
+ err = nl_errno(ENOMEM);
+ goto errout;
+ }
+
+ ntbl->ce_msgtype = n->nlmsg_type;
+ rtmsg = nlmsg_data(n);
+
+ err = nlmsg_parse(n, sizeof(*rtmsg), tb, NDTA_MAX, neightbl_policy);
+ if (err < 0)
+ goto errout;
+
+ ntbl->nt_family = rtmsg->rtgen_family;
+
+ if (tb[NDTA_NAME] == NULL) {
+ err = nl_error(EINVAL, "NDTA_NAME is missing");
+ goto errout;
+ }
+
+ nla_strlcpy(ntbl->nt_name, tb[NDTA_NAME], NTBLNAMSIZ);
+ ntbl->nt_mask |= NEIGHTBL_ATTR_NAME;
+
+ if (tb[NDTA_THRESH1]) {
+ ntbl->nt_gc_thresh1 = nla_get_u32(tb[NDTA_THRESH1]);
+ ntbl->nt_mask |= NEIGHTBL_ATTR_THRESH1;
+ }
+
+ if (tb[NDTA_THRESH2]) {
+ ntbl->nt_gc_thresh2 = nla_get_u32(tb[NDTA_THRESH2]);
+ ntbl->nt_mask |= NEIGHTBL_ATTR_THRESH2;
+ }
+
+ if (tb[NDTA_THRESH3]) {
+ ntbl->nt_gc_thresh3 = nla_get_u32(tb[NDTA_THRESH3]);
+ ntbl->nt_mask |= NEIGHTBL_ATTR_THRESH3;
+ }
+
+ if (tb[NDTA_GC_INTERVAL]) {
+ ntbl->nt_gc_interval = nla_get_u32(tb[NDTA_GC_INTERVAL]);
+ ntbl->nt_mask |= NEIGHTBL_ATTR_GC_INTERVAL;
+ }
+
+ if (tb[NDTA_CONFIG]) {
+ nla_memcpy(&ntbl->nt_config, tb[NDTA_CONFIG],
+ sizeof(ntbl->nt_config));
+ ntbl->nt_mask |= NEIGHTBL_ATTR_CONFIG;
+ }
+
+ if (tb[NDTA_STATS]) {
+ nla_memcpy(&ntbl->nt_stats, tb[NDTA_STATS],
+ sizeof(ntbl->nt_stats));
+ ntbl->nt_mask |= NEIGHTBL_ATTR_STATS;
+ }
+
+ if (tb[NDTA_PARMS]) {
+ struct nlattr *tbp[NDTPA_MAX + 1];
+ struct rtnl_neightbl_parms *p = &ntbl->nt_parms;
+
+ err = nla_parse_nested(tbp, NDTPA_MAX, tb[NDTA_PARMS], NULL);
+ if (err < 0)
+ goto errout;
+
+#define COPY_ENTRY(name, var) \
+ if (tbp[NDTPA_ ##name]) { \
+ p->ntp_ ##var = nla_get_u32(tbp[NDTPA_ ##name]); \
+ p->ntp_mask |= NEIGHTBLPARM_ATTR_ ##name; \
+ }
+
+ COPY_ENTRY(IFINDEX, ifindex);
+ COPY_ENTRY(REFCNT, refcnt);
+ COPY_ENTRY(QUEUE_LEN, queue_len);
+ COPY_ENTRY(APP_PROBES, app_probes);
+ COPY_ENTRY(UCAST_PROBES, ucast_probes);
+ COPY_ENTRY(MCAST_PROBES, mcast_probes);
+ COPY_ENTRY(PROXY_QLEN, proxy_qlen);
+ COPY_ENTRY(PROXY_DELAY, proxy_delay);
+ COPY_ENTRY(ANYCAST_DELAY, anycast_delay);
+ COPY_ENTRY(LOCKTIME, locktime);
+ COPY_ENTRY(REACHABLE_TIME, reachable_time);
+ COPY_ENTRY(BASE_REACHABLE_TIME, base_reachable_time);
+ COPY_ENTRY(RETRANS_TIME, retrans_time);
+ COPY_ENTRY(GC_STALETIME, gc_stale_time);
+ COPY_ENTRY(DELAY_PROBE_TIME, probe_delay);
+#undef COPY_ENTRY
+
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+ }
+
+ err = pp->pp_cb((struct nl_object *) ntbl, pp);
+ if (err < 0)
+ goto errout;
+
+ return P_ACCEPT;
+errout:
+ rtnl_neightbl_put(ntbl);
+ return err;
+}
+
+static int neightbl_request_update(struct nl_cache *c, struct nl_handle *h)
+{
+ return nl_rtgen_request(h, RTM_GETNEIGHTBL, AF_UNSPEC, NLM_F_DUMP);
+}
+
+
+static int neightbl_dump_brief(struct nl_object *arg, struct nl_dump_params *p)
+{
+ int line = 1;
+ struct rtnl_neightbl *ntbl = (struct rtnl_neightbl *) arg;
+
+ dp_dump(p, "%s", ntbl->nt_name);
+
+ if (ntbl->nt_parms.ntp_mask & NEIGHTBLPARM_ATTR_IFINDEX) {
+ struct nl_cache *link_cache;
+
+ link_cache = nl_cache_mngt_require("route/link");
+
+ if (link_cache) {
+ char buf[32];
+ dp_dump(p, "<%s> ",
+ rtnl_link_i2name(link_cache,
+ ntbl->nt_parms.ntp_ifindex,
+ buf, sizeof(buf)));
+ } else
+ dp_dump(p, "<%u> ", ntbl->nt_parms.ntp_ifindex);
+ } else
+ dp_dump(p, " ");
+
+ if (ntbl->nt_mask & NEIGHTBL_ATTR_CONFIG)
+ dp_dump(p, "entries %u ", ntbl->nt_config.ndtc_entries);
+
+ if (ntbl->nt_mask & NEIGHTBL_ATTR_PARMS) {
+ char rt[32], rt2[32];
+ struct rtnl_neightbl_parms *pa = &ntbl->nt_parms;
+
+ dp_dump(p, "reachable-time %s retransmit-time %s",
+ nl_msec2str(pa->ntp_reachable_time, rt, sizeof(rt)),
+ nl_msec2str(pa->ntp_retrans_time, rt2, sizeof(rt2)));
+ }
+
+ dp_dump(p, "\n");
+
+ return line;
+}
+
+static int neightbl_dump_full(struct nl_object *arg, struct nl_dump_params *p)
+{
+ char x[32], y[32], z[32];
+ struct rtnl_neightbl *ntbl = (struct rtnl_neightbl *) arg;
+
+ int line = neightbl_dump_brief(arg, p);
+
+ if (ntbl->nt_mask & NEIGHTBL_ATTR_CONFIG) {
+ dp_new_line(p, line++);
+ dp_dump(p, " key-len %u entry-size %u last-flush %s\n",
+ ntbl->nt_config.ndtc_key_len,
+ ntbl->nt_config.ndtc_entry_size,
+ nl_msec2str(ntbl->nt_config.ndtc_last_flush,
+ x, sizeof(x)));
+
+ dp_new_line(p, line++);
+ dp_dump(p, " gc threshold %u/%u/%u interval %s " \
+ "chain-position %u\n",
+ ntbl->nt_gc_thresh1, ntbl->nt_gc_thresh2,
+ ntbl->nt_gc_thresh3,
+ nl_msec2str(ntbl->nt_gc_interval, x, sizeof(x)),
+ ntbl->nt_config.ndtc_hash_chain_gc);
+
+ dp_new_line(p, line++);
+ dp_dump(p, " hash-rand 0x%08X/0x%08X last-rand %s\n",
+ ntbl->nt_config.ndtc_hash_rnd,
+ ntbl->nt_config.ndtc_hash_mask,
+ nl_msec2str(ntbl->nt_config.ndtc_last_rand,
+ x, sizeof(x)));
+ }
+
+ if (ntbl->nt_mask & NEIGHTBL_ATTR_PARMS) {
+ struct rtnl_neightbl_parms *pa = &ntbl->nt_parms;
+
+ dp_new_line(p, line++);
+ dp_dump(p, " refcnt %u pending-queue-limit %u " \
+ "proxy-delayed-queue-limit %u\n",
+ pa->ntp_refcnt,
+ pa->ntp_queue_len,
+ pa->ntp_proxy_qlen);
+
+ dp_new_line(p, line++);
+ dp_dump(p, " num-userspace-probes %u num-unicast-probes " \
+ "%u num-multicast-probes %u\n",
+ pa->ntp_app_probes,
+ pa->ntp_ucast_probes,
+ pa->ntp_mcast_probes);
+
+ dp_new_line(p, line++);
+ dp_dump(p, " min-age %s base-reachable-time %s " \
+ "stale-check-interval %s\n",
+ nl_msec2str(pa->ntp_locktime, x, sizeof(x)),
+ nl_msec2str(pa->ntp_base_reachable_time,
+ y, sizeof(y)),
+ nl_msec2str(pa->ntp_gc_stale_time, z, sizeof(z)));
+
+ dp_new_line(p, line++);
+ dp_dump(p, " initial-probe-delay %s answer-delay %s " \
+ "proxy-answer-delay %s\n",
+ nl_msec2str(pa->ntp_probe_delay, x, sizeof(x)),
+ nl_msec2str(pa->ntp_anycast_delay, y, sizeof(y)),
+ nl_msec2str(pa->ntp_proxy_delay, z, sizeof(z)));
+ }
+
+ return line;
+}
+
+static int neightbl_dump_stats(struct nl_object *arg, struct nl_dump_params *p)
+{
+ struct rtnl_neightbl *ntbl = (struct rtnl_neightbl *) arg;
+ int line = neightbl_dump_full(arg, p);
+
+ if (!(ntbl->nt_mask & NEIGHTBL_ATTR_STATS))
+ return line;
+
+ dp_new_line(p, line++);
+ dp_dump(p, " lookups %lld hits %lld failed %lld " \
+ "allocations %lld destroys %lld\n",
+ ntbl->nt_stats.ndts_lookups,
+ ntbl->nt_stats.ndts_hits,
+ ntbl->nt_stats.ndts_res_failed,
+ ntbl->nt_stats.ndts_allocs,
+ ntbl->nt_stats.ndts_destroys);
+
+ dp_new_line(p, line++);
+ dp_dump(p, " hash-grows %lld forced-gc-runs %lld " \
+ "periodic-gc-runs %lld\n",
+ ntbl->nt_stats.ndts_hash_grows,
+ ntbl->nt_stats.ndts_forced_gc_runs,
+ ntbl->nt_stats.ndts_periodic_gc_runs);
+
+ dp_dump(p, " rcv-unicast-probes %lld rcv-multicast-probes %lld\n",
+ ntbl->nt_stats.ndts_rcv_probes_ucast,
+ ntbl->nt_stats.ndts_rcv_probes_mcast);
+
+ return line;
+}
+
+/**
+ * @name Neighbour Table Object Allocation/Freeage
+ * @{
+ */
+
+/**
+ * Allocate a new neighbour table object
+ * @return New neighbour table object
+ */
+struct rtnl_neightbl *rtnl_neightbl_alloc(void)
+{
+ return (struct rtnl_neightbl *)
+ nl_object_alloc_from_ops(&rtnl_neightbl_ops);
+}
+
+/**
+ * Give back reference on neighbour table object.
+ * @arg neightbl Neighbour table object to be given back.
+ *
+ * Decrements the reference counter and frees the object if the
+ * last reference has been released.
+ */
+void rtnl_neightbl_put(struct rtnl_neightbl *neightbl)
+{
+ nl_object_put((struct nl_object *) neightbl);
+}
+/**
+ * Free neighbour table object.
+ * @arg neightbl Neighbour table object to be freed.
+ *
+ * @note Always use rtnl_neightbl_put() unless you're absolutely sure
+ * that no other user may have a reference on this object.
+ */
+void rtnl_neightbl_free(struct rtnl_neightbl *neightbl)
+{
+ nl_object_free((struct nl_object *) neightbl);
+}
+
+/** @} */
+
+/**
+ * @name Neighbour Table Cache Management
+ * @{
+ */
+
+/**
+ * Build a neighbour table cache including all neighbour tables currently configured in the kernel.
+ * @arg handle netlink handle
+ *
+ * Allocates a new neighbour table cache, initializes it properly and
+ * updates it to include all neighbour tables currently configured in
+ * the kernel.
+ *
+ * @note The caller is responsible for destroying and freeing the
+ * cache after using it.
+ * @return The new cache or NULL if an error occured.
+ */
+struct nl_cache * rtnl_neightbl_alloc_cache(struct nl_handle *handle)
+{
+ struct nl_cache * cache;
+
+ cache = nl_cache_alloc_from_ops(&rtnl_neightbl_ops);
+ if (cache == NULL)
+ return NULL;
+
+ if (nl_cache_update(handle, cache) < 0) {
+ nl_cache_free(cache);
+ return NULL;
+ }
+
+ return cache;
+}
+
+/**
+ * Lookup neighbour table by name and optional interface index
+ * @arg cache neighbour table cache
+ * @arg name name of table
+ * @arg ifindex optional interface index
+ *
+ * Looks up the neighbour table matching the specified name and
+ * optionally the specified ifindex to retrieve device specific
+ * parameter sets.
+ *
+ * @return ptr to neighbour table inside the cache or NULL if no
+ * match was found.
+ */
+struct rtnl_neightbl *rtnl_neightbl_get(struct nl_cache *cache,
+ const char *name, int ifindex)
+{
+ struct rtnl_neightbl *nt;
+
+ if (cache->c_ops != &rtnl_neightbl_ops)
+ return NULL;
+
+ nl_list_for_each_entry(nt, &cache->c_items, ce_list) {
+ if (!strcasecmp(nt->nt_name, name) &&
+ ((!ifindex && !nt->nt_parms.ntp_ifindex) ||
+ (ifindex && ifindex == nt->nt_parms.ntp_ifindex))) {
+ nl_object_get((struct nl_object *) nt);
+ return nt;
+ }
+ }
+
+ return NULL;
+}
+
+/** @} */
+
+/**
+ * @name Neighbour Table Modifications
+ * @{
+ */
+
+/**
+ * Builds a netlink change request message to change neighbour table attributes
+ * @arg old neighbour table to change
+ * @arg tmpl template with requested changes
+ *
+ * Builds a new netlink message requesting a change of neighbour table
+ * attributes. The netlink message header isn't fully equipped with all
+ * relevant fields and must be sent out via nl_send_auto_complete() or
+ * supplemented as needed.
+ * \a old must point to a neighbour table currently configured in the
+ * kernel and \a tmpl must contain the attributes to be changed set via
+ * \c rtnl_neightbl_set_* functions.
+ *
+ * @return New netlink message
+ */
+struct nl_msg * rtnl_neightbl_build_change_request(struct rtnl_neightbl *old,
+ struct rtnl_neightbl *tmpl)
+{
+ struct nl_msg *m;
+ struct ndtmsg ndt = {
+ .ndtm_family = old->nt_family,
+ };
+
+ m = nlmsg_build_simple(RTM_SETNEIGHTBL, 0);
+ nlmsg_append(m, &ndt, sizeof(ndt), 1);
+
+ nla_put_string(m, NDTA_NAME, old->nt_name);
+
+ if (tmpl->nt_mask & NEIGHTBL_ATTR_THRESH1)
+ nla_put_u32(m, NDTA_THRESH1, tmpl->nt_gc_thresh1);
+
+ if (tmpl->nt_mask & NEIGHTBL_ATTR_THRESH2)
+ nla_put_u32(m, NDTA_THRESH2, tmpl->nt_gc_thresh2);
+
+ if (tmpl->nt_mask & NEIGHTBL_ATTR_THRESH2)
+ nla_put_u32(m, NDTA_THRESH2, tmpl->nt_gc_thresh2);
+
+ if (tmpl->nt_mask & NEIGHTBL_ATTR_GC_INTERVAL)
+ nla_put_u64(m, NDTA_GC_INTERVAL,
+ tmpl->nt_gc_interval);
+
+ if (tmpl->nt_mask & NEIGHTBL_ATTR_PARMS) {
+ struct rtnl_neightbl_parms *p = &tmpl->nt_parms;
+ struct nl_msg *parms = nlmsg_build(NULL);
+
+ if (old->nt_parms.ntp_mask & NEIGHTBLPARM_ATTR_IFINDEX)
+ nla_put_u32(parms, NDTPA_IFINDEX,
+ old->nt_parms.ntp_ifindex);
+
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_QUEUE_LEN)
+ nla_put_u32(parms, NDTPA_QUEUE_LEN, p->ntp_queue_len);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_APP_PROBES)
+ nla_put_u32(parms, NDTPA_APP_PROBES, p->ntp_app_probes);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_UCAST_PROBES)
+ nla_put_u32(parms, NDTPA_UCAST_PROBES,
+ p->ntp_ucast_probes);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_MCAST_PROBES)
+ nla_put_u32(parms, NDTPA_MCAST_PROBES,
+ p->ntp_mcast_probes);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_PROXY_QLEN)
+ nla_put_u32(parms, NDTPA_PROXY_QLEN,
+ p->ntp_proxy_qlen);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_BASE_REACHABLE_TIME)
+ nla_put_u64(parms, NDTPA_BASE_REACHABLE_TIME,
+ p->ntp_base_reachable_time);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_RETRANS_TIME)
+ nla_put_u64(parms, NDTPA_RETRANS_TIME,
+ p->ntp_retrans_time);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_GC_STALETIME)
+ nla_put_u64(parms, NDTPA_GC_STALETIME,
+ p->ntp_gc_stale_time);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_DELAY_PROBE_TIME)
+ nla_put_u64(parms, NDTPA_DELAY_PROBE_TIME,
+ p->ntp_proxy_delay);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_ANYCAST_DELAY)
+ nla_put_u64(parms, NDTPA_ANYCAST_DELAY,
+ p->ntp_anycast_delay);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_PROXY_DELAY)
+ nla_put_u64(parms, NDTPA_PROXY_DELAY,
+ p->ntp_proxy_delay);
+
+ if (p->ntp_mask & NEIGHTBLPARM_ATTR_LOCKTIME)
+ nla_put_u64(parms, NDTPA_LOCKTIME, p->ntp_locktime);
+
+ nla_put_nested(m, NDTA_PARMS, parms);
+ nlmsg_free(parms);
+ }
+
+ return m;
+}
+
+/**
+ * Change neighbour table attributes
+ * @arg handle netlink handle
+ * @arg old neighbour table to be changed
+ * @arg tmpl template with requested changes
+ *
+ * Builds a new netlink message by calling
+ * rtnl_neightbl_build_change_request(), sends the request to the
+ * kernel and waits for the next ACK to be received, i.e. blocks
+ * until the request has been processed.
+ *
+ * @return 0 on success or a negative error code
+ */
+int rtnl_neightbl_change(struct nl_handle *handle, struct rtnl_neightbl *old,
+ struct rtnl_neightbl *tmpl)
+{
+ int err;
+ struct nl_msg *msg;
+
+ msg = rtnl_neightbl_build_change_request(old, tmpl);
+ err = nl_send_auto_complete(handle, msg);
+ if (err < 0)
+ return err;
+
+ nlmsg_free(msg);
+ return nl_wait_for_ack(handle);
+}
+
+/** @} */
+
+/**
+ * @name Attribute Modification
+ * @{
+ */
+
+/**
+ * Set the address family of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg family new address family
+ */
+void rtnl_neightbl_set_family(struct rtnl_neightbl *ntbl, int family)
+{
+ ntbl->nt_family = family;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_FAMILY;
+}
+
+/**
+ * Set the gc interval of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new interval in milliseconds
+ */
+void rtnl_neightbl_set_gc_interval(struct rtnl_neightbl *ntbl, uint64_t ms)
+{
+ ntbl->nt_gc_interval = ms;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_GC_INTERVAL;
+}
+
+/**
+ * Set the gc threshold 1 of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg thresh new gc threshold
+ */
+void rtnl_neightbl_set_gc_tresh1(struct rtnl_neightbl *ntbl, int thresh)
+{
+ ntbl->nt_gc_thresh1 = thresh;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_THRESH1;
+}
+
+/**
+ * Set the gc threshold 2 of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg thresh new gc threshold
+ */
+void rtnl_neightbl_set_gc_tresh2(struct rtnl_neightbl *ntbl, int thresh)
+{
+ ntbl->nt_gc_thresh2 = thresh;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_THRESH2;
+}
+
+/**
+ * Set the gc threshold 3 of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg thresh new gc threshold
+ */
+void rtnl_neightbl_set_gc_tresh3(struct rtnl_neightbl *ntbl, int thresh)
+{
+ ntbl->nt_gc_thresh3 = thresh;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_THRESH3;
+}
+
+/**
+ * Set the table name of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg name new table name
+ */
+void rtnl_neightbl_set_name(struct rtnl_neightbl *ntbl, const char *name)
+{
+ strncpy(ntbl->nt_name, name, sizeof(ntbl->nt_name) - 1);
+ ntbl->nt_mask |= NEIGHTBL_ATTR_NAME;
+}
+
+/**
+ * Set the device of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ifindex interface index of the device
+ */
+void rtnl_neightbl_set_dev(struct rtnl_neightbl *ntbl, int ifindex)
+{
+ ntbl->nt_parms.ntp_ifindex = ifindex;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_IFINDEX;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the queue length for pending requests of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg len new queue len
+ */
+void rtnl_neightbl_set_queue_len(struct rtnl_neightbl *ntbl, int len)
+{
+ ntbl->nt_parms.ntp_queue_len = len;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_QUEUE_LEN;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the queue length for delay proxy arp requests of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg len new queue len
+ */
+void rtnl_neightbl_set_proxy_queue_len(struct rtnl_neightbl *ntbl, int len)
+{
+ ntbl->nt_parms.ntp_proxy_qlen = len;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_PROXY_QLEN;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the number of application probes of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg probes new probes value
+ */
+void rtnl_neightbl_set_app_probes(struct rtnl_neightbl *ntbl, int probes)
+{
+ ntbl->nt_parms.ntp_app_probes = probes;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_APP_PROBES;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the number of unicast probes of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg probes new probes value
+ */
+void rtnl_neightbl_set_ucast_probes(struct rtnl_neightbl *ntbl, int probes)
+{
+ ntbl->nt_parms.ntp_ucast_probes = probes;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_UCAST_PROBES;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the number of multicast probes of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg probes new probes value
+ */
+void rtnl_neightbl_set_mcast_probes(struct rtnl_neightbl *ntbl, int probes)
+{
+ ntbl->nt_parms.ntp_mcast_probes = probes;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_MCAST_PROBES;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the base reachable time of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new base reachable time in milliseconds
+ */
+void rtnl_neightbl_set_base_reachable_time(struct rtnl_neightbl *ntbl,
+ uint64_t ms)
+{
+ ntbl->nt_parms.ntp_base_reachable_time = ms;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_BASE_REACHABLE_TIME;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the retransmit time of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new retransmit time
+ */
+void rtnl_neightbl_set_retrans_time(struct rtnl_neightbl *ntbl, uint64_t ms)
+{
+ ntbl->nt_parms.ntp_retrans_time = ms;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_RETRANS_TIME;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the gc stale time of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new gc stale time in milliseconds
+ */
+void rtnl_neightbl_set_gc_stale_time(struct rtnl_neightbl *ntbl, uint64_t ms)
+{
+ ntbl->nt_parms.ntp_gc_stale_time = ms;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_GC_STALETIME;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the first probe delay time of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new first probe delay time in milliseconds
+ */
+void rtnl_neightbl_set_delay_probe_time(struct rtnl_neightbl *ntbl, uint64_t ms)
+{
+ ntbl->nt_parms.ntp_probe_delay = ms;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_DELAY_PROBE_TIME;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the anycast delay of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new anycast delay in milliseconds
+ */
+void rtnl_neightbl_set_anycast_delay(struct rtnl_neightbl *ntbl, uint64_t ms)
+{
+ ntbl->nt_parms.ntp_anycast_delay = ms;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_ANYCAST_DELAY;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the proxy delay of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new proxy delay in milliseconds
+ */
+void rtnl_neightbl_set_proxy_delay(struct rtnl_neightbl *ntbl, uint64_t ms)
+{
+ ntbl->nt_parms.ntp_proxy_delay = ms;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_PROXY_DELAY;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/**
+ * Set the locktime of a neighbour table to the specified value
+ * @arg ntbl neighbour table to change
+ * @arg ms new locktime in milliseconds
+ */
+void rtnl_neightbl_set_locktime(struct rtnl_neightbl *ntbl, uint64_t ms)
+{
+ ntbl->nt_parms.ntp_locktime = ms;
+ ntbl->nt_parms.ntp_mask |= NEIGHTBLPARM_ATTR_LOCKTIME;
+ ntbl->nt_mask |= NEIGHTBL_ATTR_PARMS;
+}
+
+/** @} */
+
+static struct nl_cache_ops rtnl_neightbl_ops = {
+ .co_name = "route/neightbl",
+ .co_size = sizeof(struct rtnl_neightbl),
+ .co_hdrsize = sizeof(struct rtgenmsg),
+ .co_msgtypes = {
+ { RTM_NEWNEIGHTBL, "new" },
+ { RTM_SETNEIGHTBL, "set" },
+ { RTM_GETNEIGHTBL, "get" },
+ { -1, NULL },
+ },
+ .co_protocol = NETLINK_ROUTE,
+ .co_request_update = &neightbl_request_update,
+ .co_msg_parser = &neightbl_msg_parser,
+ .co_dump[NL_DUMP_BRIEF] = &neightbl_dump_brief,
+ .co_dump[NL_DUMP_FULL] = &neightbl_dump_full,
+ .co_dump[NL_DUMP_STATS] = &neightbl_dump_stats,
+ .co_filter = &neightbl_filter,
+};
+
+static void __init neightbl_init(void)
+{
+ nl_cache_mngt_register(&rtnl_neightbl_ops);
+}
+
+static void __exit neightbl_exit(void)
+{
+ nl_cache_mngt_unregister(&rtnl_neightbl_ops);
+}
+
+/** @} */
git://git.onelab.eu / libnl.git / blobdiff