* Harald Welte Add neighbour cache statistics like rtstat
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/kernel.h>
NEIGH_CACHE_STAT_INC(neigh->tbl, destroys);
if (!neigh->dead) {
- printk(KERN_WARNING
- "Destroying alive neighbour %p\n", neigh);
+ pr_warn("Destroying alive neighbour %p\n", neigh);
dump_stack();
return;
}
if (neigh_del_timer(neigh))
- printk(KERN_WARNING "Impossible event.\n");
+ pr_warn("Impossible event\n");
skb_queue_purge(&neigh->arp_queue);
neigh->arp_queue_len_bytes = 0;
{
unsigned long now, next;
struct neighbour *neigh = (struct neighbour *)arg;
- unsigned state;
+ unsigned int state;
int notify = 0;
write_lock(&neigh->lock);
static struct lock_class_key neigh_table_proxy_queue_class;
-void neigh_table_init_no_netlink(struct neigh_table *tbl)
+static void neigh_table_init_no_netlink(struct neigh_table *tbl)
{
unsigned long now = jiffies;
unsigned long phsize;
tbl->last_flush = now;
tbl->last_rand = now + tbl->parms.reachable_time * 20;
}
-EXPORT_SYMBOL(neigh_table_init_no_netlink);
void neigh_table_init(struct neigh_table *tbl)
{
write_unlock(&neigh_tbl_lock);
if (unlikely(tmp)) {
- printk(KERN_ERR "NEIGH: Registering multiple tables for "
- "family %d\n", tbl->family);
+ pr_err("Registering multiple tables for family %d\n",
+ tbl->family);
dump_stack();
}
}
pneigh_queue_purge(&tbl->proxy_queue);
neigh_ifdown(tbl, NULL);
if (atomic_read(&tbl->entries))
- printk(KERN_CRIT "neighbour leakage\n");
+ pr_crit("neighbour leakage\n");
write_lock(&neigh_tbl_lock);
for (tp = &neigh_tables; *tp; tp = &(*tp)->next) {
if (*tp == tbl) {
if (nest == NULL)
return -ENOBUFS;
- if (parms->dev)
- NLA_PUT_U32(skb, NDTPA_IFINDEX, parms->dev->ifindex);
-
- NLA_PUT_U32(skb, NDTPA_REFCNT, atomic_read(&parms->refcnt));
- NLA_PUT_U32(skb, NDTPA_QUEUE_LENBYTES, parms->queue_len_bytes);
- /* approximative value for deprecated QUEUE_LEN (in packets) */
- NLA_PUT_U32(skb, NDTPA_QUEUE_LEN,
- DIV_ROUND_UP(parms->queue_len_bytes,
- SKB_TRUESIZE(ETH_FRAME_LEN)));
- NLA_PUT_U32(skb, NDTPA_PROXY_QLEN, parms->proxy_qlen);
- NLA_PUT_U32(skb, NDTPA_APP_PROBES, parms->app_probes);
- NLA_PUT_U32(skb, NDTPA_UCAST_PROBES, parms->ucast_probes);
- NLA_PUT_U32(skb, NDTPA_MCAST_PROBES, parms->mcast_probes);
- NLA_PUT_MSECS(skb, NDTPA_REACHABLE_TIME, parms->reachable_time);
- NLA_PUT_MSECS(skb, NDTPA_BASE_REACHABLE_TIME,
- parms->base_reachable_time);
- NLA_PUT_MSECS(skb, NDTPA_GC_STALETIME, parms->gc_staletime);
- NLA_PUT_MSECS(skb, NDTPA_DELAY_PROBE_TIME, parms->delay_probe_time);
- NLA_PUT_MSECS(skb, NDTPA_RETRANS_TIME, parms->retrans_time);
- NLA_PUT_MSECS(skb, NDTPA_ANYCAST_DELAY, parms->anycast_delay);
- NLA_PUT_MSECS(skb, NDTPA_PROXY_DELAY, parms->proxy_delay);
- NLA_PUT_MSECS(skb, NDTPA_LOCKTIME, parms->locktime);
-
+ if ((parms->dev &&
+ nla_put_u32(skb, NDTPA_IFINDEX, parms->dev->ifindex)) ||
+ nla_put_u32(skb, NDTPA_REFCNT, atomic_read(&parms->refcnt)) ||
+ nla_put_u32(skb, NDTPA_QUEUE_LENBYTES, parms->queue_len_bytes) ||
+ /* approximative value for deprecated QUEUE_LEN (in packets) */
+ nla_put_u32(skb, NDTPA_QUEUE_LEN,
+ DIV_ROUND_UP(parms->queue_len_bytes,
+ SKB_TRUESIZE(ETH_FRAME_LEN))) ||
+ nla_put_u32(skb, NDTPA_PROXY_QLEN, parms->proxy_qlen) ||
+ nla_put_u32(skb, NDTPA_APP_PROBES, parms->app_probes) ||
+ nla_put_u32(skb, NDTPA_UCAST_PROBES, parms->ucast_probes) ||
+ nla_put_u32(skb, NDTPA_MCAST_PROBES, parms->mcast_probes) ||
+ nla_put_msecs(skb, NDTPA_REACHABLE_TIME, parms->reachable_time) ||
+ nla_put_msecs(skb, NDTPA_BASE_REACHABLE_TIME,
+ parms->base_reachable_time) ||
+ nla_put_msecs(skb, NDTPA_GC_STALETIME, parms->gc_staletime) ||
+ nla_put_msecs(skb, NDTPA_DELAY_PROBE_TIME,
+ parms->delay_probe_time) ||
+ nla_put_msecs(skb, NDTPA_RETRANS_TIME, parms->retrans_time) ||
+ nla_put_msecs(skb, NDTPA_ANYCAST_DELAY, parms->anycast_delay) ||
+ nla_put_msecs(skb, NDTPA_PROXY_DELAY, parms->proxy_delay) ||
+ nla_put_msecs(skb, NDTPA_LOCKTIME, parms->locktime))
+ goto nla_put_failure;
return nla_nest_end(skb, nest);
nla_put_failure:
ndtmsg->ndtm_pad1 = 0;
ndtmsg->ndtm_pad2 = 0;
- NLA_PUT_STRING(skb, NDTA_NAME, tbl->id);
- NLA_PUT_MSECS(skb, NDTA_GC_INTERVAL, tbl->gc_interval);
- NLA_PUT_U32(skb, NDTA_THRESH1, tbl->gc_thresh1);
- NLA_PUT_U32(skb, NDTA_THRESH2, tbl->gc_thresh2);
- NLA_PUT_U32(skb, NDTA_THRESH3, tbl->gc_thresh3);
-
+ if (nla_put_string(skb, NDTA_NAME, tbl->id) ||
+ nla_put_msecs(skb, NDTA_GC_INTERVAL, tbl->gc_interval) ||
+ nla_put_u32(skb, NDTA_THRESH1, tbl->gc_thresh1) ||
+ nla_put_u32(skb, NDTA_THRESH2, tbl->gc_thresh2) ||
+ nla_put_u32(skb, NDTA_THRESH3, tbl->gc_thresh3))
+ goto nla_put_failure;
{
unsigned long now = jiffies;
unsigned int flush_delta = now - tbl->last_flush;
ndc.ndtc_hash_mask = ((1 << nht->hash_shift) - 1);
rcu_read_unlock_bh();
- NLA_PUT(skb, NDTA_CONFIG, sizeof(ndc), &ndc);
+ if (nla_put(skb, NDTA_CONFIG, sizeof(ndc), &ndc))
+ goto nla_put_failure;
}
{
ndst.ndts_forced_gc_runs += st->forced_gc_runs;
}
- NLA_PUT(skb, NDTA_STATS, sizeof(ndst), &ndst);
+ if (nla_put(skb, NDTA_STATS, sizeof(ndst), &ndst))
+ goto nla_put_failure;
}
BUG_ON(tbl->parms.dev);
ndm->ndm_type = neigh->type;
ndm->ndm_ifindex = neigh->dev->ifindex;
- NLA_PUT(skb, NDA_DST, neigh->tbl->key_len, neigh->primary_key);
+ if (nla_put(skb, NDA_DST, neigh->tbl->key_len, neigh->primary_key))
+ goto nla_put_failure;
read_lock_bh(&neigh->lock);
ndm->ndm_state = neigh->nud_state;
ci.ndm_refcnt = atomic_read(&neigh->refcnt) - 1;
read_unlock_bh(&neigh->lock);
- NLA_PUT_U32(skb, NDA_PROBES, atomic_read(&neigh->probes));
- NLA_PUT(skb, NDA_CACHEINFO, sizeof(ci), &ci);
+ if (nla_put_u32(skb, NDA_PROBES, atomic_read(&neigh->probes)) ||
+ nla_put(skb, NDA_CACHEINFO, sizeof(ci), &ci))
+ goto nla_put_failure;
return nlmsg_end(skb, nlh);
ndm->ndm_ifindex = pn->dev->ifindex;
ndm->ndm_state = NUD_NONE;
- NLA_PUT(skb, NDA_DST, tbl->key_len, pn->key);
+ if (nla_put(skb, NDA_DST, tbl->key_len, pn->key))
+ goto nla_put_failure;
return nlmsg_end(skb, nlh);
static struct neigh_sysctl_table {
struct ctl_table_header *sysctl_header;
struct ctl_table neigh_vars[NEIGH_VAR_MAX + 1];
- char *dev_name;
} neigh_sysctl_template __read_mostly = {
.neigh_vars = {
[NEIGH_VAR_MCAST_PROBE] = {
{
struct neigh_sysctl_table *t;
const char *dev_name_source = NULL;
-
-#define NEIGH_CTL_PATH_ROOT 0
-#define NEIGH_CTL_PATH_PROTO 1
-#define NEIGH_CTL_PATH_NEIGH 2
-#define NEIGH_CTL_PATH_DEV 3
-
- struct ctl_path neigh_path[] = {
- { .procname = "net", },
- { .procname = "proto", },
- { .procname = "neigh", },
- { .procname = "default", },
- { },
- };
+ char neigh_path[ sizeof("net//neigh/") + IFNAMSIZ + IFNAMSIZ ];
t = kmemdup(&neigh_sysctl_template, sizeof(*t), GFP_KERNEL);
if (!t)
memset(&t->neigh_vars[NEIGH_VAR_GC_INTERVAL], 0,
sizeof(t->neigh_vars[NEIGH_VAR_GC_INTERVAL]));
} else {
- dev_name_source = neigh_path[NEIGH_CTL_PATH_DEV].procname;
+ dev_name_source = "default";
t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = (int *)(p + 1);
t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = (int *)(p + 1) + 1;
t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = (int *)(p + 1) + 2;
t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].extra1 = dev;
}
- t->dev_name = kstrdup(dev_name_source, GFP_KERNEL);
- if (!t->dev_name)
- goto free;
-
- neigh_path[NEIGH_CTL_PATH_DEV].procname = t->dev_name;
- neigh_path[NEIGH_CTL_PATH_PROTO].procname = p_name;
-
+ snprintf(neigh_path, sizeof(neigh_path), "net/%s/neigh/%s",
+ p_name, dev_name_source);
t->sysctl_header =
- register_net_sysctl_table(neigh_parms_net(p), neigh_path, t->neigh_vars);
+ register_net_sysctl(neigh_parms_net(p), neigh_path, t->neigh_vars);
if (!t->sysctl_header)
- goto free_procname;
+ goto free;
p->sysctl_table = t;
return 0;
-free_procname:
- kfree(t->dev_name);
free:
kfree(t);
err:
if (p->sysctl_table) {
struct neigh_sysctl_table *t = p->sysctl_table;
p->sysctl_table = NULL;
- unregister_sysctl_table(t->sysctl_header);
- kfree(t->dev_name);
+ unregister_net_sysctl_table(t->sysctl_header);
kfree(t);
}
}
projects / karo-tx-linux.git / blobdiff