Release 4.7 net/core/neighbour.c
/*
* Generic address resolution entity
*
* Authors:
* Pedro Roque <roque@di.fc.ul.pt>
* Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
* Fixes:
* Vitaly E. Lavrov releasing NULL neighbor in neigh_add.
* 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>
#include <linux/module.h>
#include <linux/socket.h>
#include <linux/netdevice.h>
#include <linux/proc_fs.h>
#ifdef CONFIG_SYSCTL
#include <linux/sysctl.h>
#endif
#include <linux/times.h>
#include <net/net_namespace.h>
#include <net/neighbour.h>
#include <net/dst.h>
#include <net/sock.h>
#include <net/netevent.h>
#include <net/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/random.h>
#include <linux/string.h>
#include <linux/log2.h>
#include <linux/inetdevice.h>
#include <net/addrconf.h>
#define DEBUG
#define NEIGH_DEBUG 1
#define neigh_dbg(level, fmt, ...) \
do { \
if (level <= NEIGH_DEBUG) \
pr_debug(fmt, ##__VA_ARGS__); \
} while (0)
#define PNEIGH_HASHMASK 0xF
static void neigh_timer_handler(unsigned long arg);
static void __neigh_notify(struct neighbour *n, int type, int flags);
static void neigh_update_notify(struct neighbour *neigh);
static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev);
#ifdef CONFIG_PROC_FS
static const struct file_operations neigh_stat_seq_fops;
#endif
/*
Neighbour hash table buckets are protected with rwlock tbl->lock.
- All the scans/updates to hash buckets MUST be made under this lock.
- NOTHING clever should be made under this lock: no callbacks
to protocol backends, no attempts to send something to network.
It will result in deadlocks, if backend/driver wants to use neighbour
cache.
- If the entry requires some non-trivial actions, increase
its reference count and release table lock.
Neighbour entries are protected:
- with reference count.
- with rwlock neigh->lock
Reference count prevents destruction.
neigh->lock mainly serializes ll address data and its validity state.
However, the same lock is used to protect another entry fields:
- timer
- resolution queue
Again, nothing clever shall be made under neigh->lock,
the most complicated procedure, which we allow is dev->hard_header.
It is supposed, that dev->hard_header is simplistic and does
not make callbacks to neighbour tables.
*/
static int neigh_blackhole(struct neighbour *neigh, struct sk_buff *skb)
{
kfree_skb(skb);
return -ENETDOWN;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 20 | 80.00% | 2 | 66.67% |
david s. miller | david s. miller | 5 | 20.00% | 1 | 33.33% |
| Total | 25 | 100.00% | 3 | 100.00% |
static void neigh_cleanup_and_release(struct neighbour *neigh)
{
if (neigh->parms->neigh_cleanup)
neigh->parms->neigh_cleanup(neigh);
__neigh_notify(neigh, RTM_DELNEIGH, 0);
neigh_release(neigh);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 42 | 100.00% | 2 | 100.00% |
| Total | 42 | 100.00% | 2 | 100.00% |
/*
* It is random distribution in the interval (1/2)*base...(3/2)*base.
* It corresponds to default IPv6 settings and is not overridable,
* because it is really reasonable choice.
*/
unsigned long neigh_rand_reach_time(unsigned long base)
{
return base ? (prandom_u32() % base) + (base >> 1) : 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 22 | 78.57% | 1 | 33.33% |
hideaki yoshifuji | hideaki yoshifuji | 5 | 17.86% | 1 | 33.33% |
aruna-hewapathirane | aruna-hewapathirane | 1 | 3.57% | 1 | 33.33% |
| Total | 28 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(neigh_rand_reach_time);
static int neigh_forced_gc(struct neigh_table *tbl)
{
int shrunk = 0;
int i;
struct neigh_hash_table *nht;
NEIGH_CACHE_STAT_INC(tbl, forced_gc_runs);
write_lock_bh(&tbl->lock);
nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
for (i = 0; i < (1 << nht->hash_shift); i++) {
struct neighbour *n;
struct neighbour __rcu **np;
np = &nht->hash_buckets[i];
while ((n = rcu_dereference_protected(*np,
lockdep_is_held(&tbl->lock))) != NULL) {
/* Neighbour record may be discarded if:
* - nobody refers to it.
* - it is not permanent
*/
write_lock(&n->lock);
if (atomic_read(&n->refcnt) == 1 &&
!(n->nud_state & NUD_PERMANENT)) {
rcu_assign_pointer(*np,
rcu_dereference_protected(n->next,
lockdep_is_held(&tbl->lock)));
n->dead = 1;
shrunk = 1;
write_unlock(&n->lock);
neigh_cleanup_and_release(n);
continue;
}
write_unlock(&n->lock);
np = &n->next;
}
}
tbl->last_flush = jiffies;
write_unlock_bh(&tbl->lock);
return shrunk;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 147 | 63.36% | 4 | 33.33% |
eric dumazet | eric dumazet | 54 | 23.28% | 2 | 16.67% |
david s. miller | david s. miller | 30 | 12.93% | 5 | 41.67% |
thomas graf | thomas graf | 1 | 0.43% | 1 | 8.33% |
| Total | 232 | 100.00% | 12 | 100.00% |
static void neigh_add_timer(struct neighbour *n, unsigned long when)
{
neigh_hold(n);
if (unlikely(mod_timer(&n->timer, when))) {
printk("NEIGH: BUG, double timer add, state is %x\n",
n->nud_state);
dump_stack();
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pavel emelianov | pavel emelianov | 49 | 100.00% | 1 | 100.00% |
| Total | 49 | 100.00% | 1 | 100.00% |
static int neigh_del_timer(struct neighbour *n)
{
if ((n->nud_state & NUD_IN_TIMER) &&
del_timer(&n->timer)) {
neigh_release(n);
return 1;
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 39 | 92.86% | 1 | 50.00% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 3 | 7.14% | 1 | 50.00% |
| Total | 42 | 100.00% | 2 | 100.00% |
static void pneigh_queue_purge(struct sk_buff_head *list)
{
struct sk_buff *skb;
while ((skb = skb_dequeue(list)) != NULL) {
dev_put(skb->dev);
kfree_skb(skb);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 43 | 100.00% | 1 | 100.00% |
| Total | 43 | 100.00% | 1 | 100.00% |
static void neigh_flush_dev(struct neigh_table *tbl, struct net_device *dev)
{
int i;
struct neigh_hash_table *nht;
nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
for (i = 0; i < (1 << nht->hash_shift); i++) {
struct neighbour *n;
struct neighbour __rcu **np = &nht->hash_buckets[i];
while ((n = rcu_dereference_protected(*np,
lockdep_is_held(&tbl->lock))) != NULL) {
if (dev && n->dev != dev) {
np = &n->next;
continue;
}
rcu_assign_pointer(*np,
rcu_dereference_protected(n->next,
lockdep_is_held(&tbl->lock)));
write_lock(&n->lock);
neigh_del_timer(n);
n->dead = 1;
if (atomic_read(&n->refcnt) != 1) {
/* The most unpleasant situation.
We must destroy neighbour entry,
but someone still uses it.
The destroy will be delayed until
the last user releases us, but
we must kill timers etc. and move
it to safe state.
*/
__skb_queue_purge(&n->arp_queue);
n->arp_queue_len_bytes = 0;
n->output = neigh_blackhole;
if (n->nud_state & NUD_VALID)
n->nud_state = NUD_NOARP;
else
n->nud_state = NUD_NONE;
neigh_dbg(2, "neigh %p is stray\n", n);
}
write_unlock(&n->lock);
neigh_cleanup_and_release(n);
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 165 | 67.62% | 6 | 35.29% |
eric dumazet | eric dumazet | 61 | 25.00% | 4 | 23.53% |
david s. miller | david s. miller | 7 | 2.87% | 2 | 11.76% |
joe perches | joe perches | 4 | 1.64% | 1 | 5.88% |
herbert xu | herbert xu | 3 | 1.23% | 1 | 5.88% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 2 | 0.82% | 1 | 5.88% |
tommi virtanen | tommi virtanen | 1 | 0.41% | 1 | 5.88% |
thomas graf | thomas graf | 1 | 0.41% | 1 | 5.88% |
| Total | 244 | 100.00% | 17 | 100.00% |
void neigh_changeaddr(struct neigh_table *tbl, struct net_device *dev)
{
write_lock_bh(&tbl->lock);
neigh_flush_dev(tbl, dev);
write_unlock_bh(&tbl->lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
herbert xu | herbert xu | 38 | 100.00% | 1 | 100.00% |
| Total | 38 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(neigh_changeaddr);
int neigh_ifdown(struct neigh_table *tbl, struct net_device *dev)
{
write_lock_bh(&tbl->lock);
neigh_flush_dev(tbl, dev);
pneigh_ifdown(tbl, dev);
write_unlock_bh(&tbl->lock);
del_timer_sync(&tbl->proxy_timer);
pneigh_queue_purge(&tbl->proxy_queue);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 35 | 54.69% | 6 | 85.71% |
herbert xu | herbert xu | 29 | 45.31% | 1 | 14.29% |
| Total | 64 | 100.00% | 7 | 100.00% |
EXPORT_SYMBOL(neigh_ifdown);
static struct neighbour *neigh_alloc(struct neigh_table *tbl, struct net_device *dev)
{
struct neighbour *n = NULL;
unsigned long now = jiffies;
int entries;
entries = atomic_inc_return(&tbl->entries) - 1;
if (entries >= tbl->gc_thresh3 ||
(entries >= tbl->gc_thresh2 &&
time_after(now, tbl->last_flush + 5 * HZ))) {
if (!neigh_forced_gc(tbl) &&
entries >= tbl->gc_thresh3) {
net_info_ratelimited("%s: neighbor table overflow!\n",
tbl->id);
NEIGH_CACHE_STAT_INC(tbl, table_fulls);
goto out_entries;
}
}
n = kzalloc(tbl->entry_size + dev->neigh_priv_len, GFP_ATOMIC);
if (!n)
goto out_entries;
__skb_queue_head_init(&n->arp_queue);
rwlock_init(&n->lock);
seqlock_init(&n->ha_lock);
n->updated = n->used = now;
n->nud_state = NUD_NONE;
n->output = neigh_blackhole;
seqlock_init(&n->hh.hh_lock);
n->parms = neigh_parms_clone(&tbl->parms);
setup_timer(&n->timer, neigh_timer_handler, (unsigned long)n);
NEIGH_CACHE_STAT_INC(tbl, allocs);
n->tbl = tbl;
atomic_set(&n->refcnt, 1);
n->dead = 1;
out:
return n;
out_entries:
atomic_dec(&tbl->entries);
goto out;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 151 | 56.77% | 5 | 27.78% |
herbert xu | herbert xu | 36 | 13.53% | 2 | 11.11% |
david s. miller | david s. miller | 29 | 10.90% | 4 | 22.22% |
rick jones | rick jones | 18 | 6.77% | 1 | 5.56% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 10 | 3.76% | 1 | 5.56% |
eric dumazet | eric dumazet | 9 | 3.38% | 2 | 11.11% |
hideaki yoshifuji | hideaki yoshifuji | 5 | 1.88% | 1 | 5.56% |
andrew morton | andrew morton | 4 | 1.50% | 1 | 5.56% |
pavel emelianov | pavel emelianov | 4 | 1.50% | 1 | 5.56% |
| Total | 266 | 100.00% | 18 | 100.00% |
static void neigh_get_hash_rnd(u32 *x)
{
get_random_bytes(x, sizeof(*x));
*x |= 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 26 | 100.00% | 1 | 100.00% |
| Total | 26 | 100.00% | 1 | 100.00% |
static struct neigh_hash_table *neigh_hash_alloc(unsigned int shift)
{
size_t size = (1 << shift) * sizeof(struct neighbour *);
struct neigh_hash_table *ret;
struct neighbour __rcu **buckets;
int i;
ret = kmalloc(sizeof(*ret), GFP_ATOMIC);
if (!ret)
return NULL;
if (size <= PAGE_SIZE)
buckets = kzalloc(size, GFP_ATOMIC);
else
buckets = (struct neighbour __rcu **)
__get_free_pages(GFP_ATOMIC | __GFP_ZERO,
get_order(size));
if (!buckets) {
kfree(ret);
return NULL;
}
ret->hash_buckets = buckets;
ret->hash_shift = shift;
for (i = 0; i < NEIGH_NUM_HASH_RND; i++)
neigh_get_hash_rnd(&ret->hash_rnd[i]);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 88 | 56.77% | 4 | 57.14% |
eric dumazet | eric dumazet | 64 | 41.29% | 2 | 28.57% |
andrew morton | andrew morton | 3 | 1.94% | 1 | 14.29% |
| Total | 155 | 100.00% | 7 | 100.00% |
static void neigh_hash_free_rcu(struct rcu_head *head)
{
struct neigh_hash_table *nht = container_of(head,
struct neigh_hash_table,
rcu);
size_t size = (1 << nht->hash_shift) * sizeof(struct neighbour *);
struct neighbour __rcu **buckets = nht->hash_buckets;
if (size <= PAGE_SIZE)
kfree(buckets);
else
free_pages((unsigned long)buckets, get_order(size));
kfree(nht);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 45 | 52.33% | 2 | 50.00% |
eric dumazet | eric dumazet | 41 | 47.67% | 2 | 50.00% |
| Total | 86 | 100.00% | 4 | 100.00% |
static struct neigh_hash_table *neigh_hash_grow(struct neigh_table *tbl,
unsigned long new_shift)
{
unsigned int i, hash;
struct neigh_hash_table *new_nht, *old_nht;
NEIGH_CACHE_STAT_INC(tbl, hash_grows);
old_nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
new_nht = neigh_hash_alloc(new_shift);
if (!new_nht)
return old_nht;
for (i = 0; i < (1 << old_nht->hash_shift); i++) {
struct neighbour *n, *next;
for (n = rcu_dereference_protected(old_nht->hash_buckets[i],
lockdep_is_held(&tbl->lock));
n != NULL;
n = next) {
hash = tbl->hash(n->primary_key, n->dev,
new_nht->hash_rnd);
hash >>= (32 - new_nht->hash_shift);
next = rcu_dereference_protected(n->next,
lockdep_is_held(&tbl->lock));
rcu_assign_pointer(n->next,
rcu_dereference_protected(
new_nht->hash_buckets[hash],
lockdep_is_held(&tbl->lock)));
rcu_assign_pointer(new_nht->hash_buckets[hash], n);
}
}
rcu_assign_pointer(tbl->nht, new_nht);
call_rcu(&old_nht->rcu, neigh_hash_free_rcu);
return new_nht;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 124 | 52.54% | 4 | 66.67% |
eric dumazet | eric dumazet | 112 | 47.46% | 2 | 33.33% |
| Total | 236 | 100.00% | 6 | 100.00% |
struct neighbour *neigh_lookup(struct neigh_table *tbl, const void *pkey,
struct net_device *dev)
{
struct neighbour *n;
NEIGH_CACHE_STAT_INC(tbl, lookups);
rcu_read_lock_bh();
n = __neigh_lookup_noref(tbl, pkey, dev);
if (n) {
if (!atomic_inc_not_zero(&n->refcnt))
n = NULL;
NEIGH_CACHE_STAT_INC(tbl, hits);
}
rcu_read_unlock_bh();
return n;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 42 | 51.22% | 4 | 44.44% |
eric dumazet | eric dumazet | 20 | 24.39% | 2 | 22.22% |
david s. miller | david s. miller | 14 | 17.07% | 1 | 11.11% |
eric w. biederman | eric w. biederman | 3 | 3.66% | 1 | 11.11% |
pavel emelianov | pavel emelianov | 3 | 3.66% | 1 | 11.11% |
| Total | 82 | 100.00% | 9 | 100.00% |
EXPORT_SYMBOL(neigh_lookup);
struct neighbour *neigh_lookup_nodev(struct neigh_table *tbl, struct net *net,
const void *pkey)
{
struct neighbour *n;
int key_len = tbl->key_len;
u32 hash_val;
struct neigh_hash_table *nht;
NEIGH_CACHE_STAT_INC(tbl, lookups);
rcu_read_lock_bh();
nht = rcu_dereference_bh(tbl->nht);
hash_val = tbl->hash(pkey, NULL, nht->hash_rnd) >> (32 - nht->hash_shift);
for (n = rcu_dereference_bh(nht->hash_buckets[hash_val]);
n != NULL;
n = rcu_dereference_bh(n->next)) {
if (!memcmp(n->primary_key, pkey, key_len) &&
net_eq(dev_net(n->dev), net)) {
if (!atomic_inc_not_zero(&n->refcnt))
n = NULL;
NEIGH_CACHE_STAT_INC(tbl, hits);
break;
}
}
rcu_read_unlock_bh();
return n;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 101 | 59.41% | 3 | 33.33% |
eric dumazet | eric dumazet | 43 | 25.29% | 2 | 22.22% |
pavel emelianov | pavel emelianov | 9 | 5.29% | 1 | 11.11% |
eric w. biederman | eric w. biederman | 9 | 5.29% | 1 | 11.11% |
hideaki yoshifuji | hideaki yoshifuji | 8 | 4.71% | 2 | 22.22% |
| Total | 170 | 100.00% | 9 | 100.00% |
EXPORT_SYMBOL(neigh_lookup_nodev);
struct neighbour *__neigh_create(struct neigh_table *tbl, const void *pkey,
struct net_device *dev, bool want_ref)
{
u32 hash_val;
int key_len = tbl->key_len;
int error;
struct neighbour *n1, *rc, *n = neigh_alloc(tbl, dev);
struct neigh_hash_table *nht;
if (!n) {
rc = ERR_PTR(-ENOBUFS);
goto out;
}
memcpy(n->primary_key, pkey, key_len);
n->dev = dev;
dev_hold(dev);
/* Protocol specific setup. */
if (tbl->constructor && (error = tbl->constructor(n)) < 0) {
rc = ERR_PTR(error);
goto out_neigh_release;
}
if (dev->netdev_ops->ndo_neigh_construct) {
error = dev->netdev_ops->ndo_neigh_construct(n);
if (error < 0) {
rc = ERR_PTR(error);
goto out_neigh_release;
}
}
/* Device specific setup. */
if (n->parms->neigh_setup &&
(error = n->parms->neigh_setup(n)) < 0) {
rc = ERR_PTR(error);
goto out_neigh_release;
}
n->confirmed = jiffies - (NEIGH_VAR(n->parms, BASE_REACHABLE_TIME) << 1);
write_lock_bh(&tbl->lock);
nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
if (atomic_read(&tbl->entries) > (1 << nht->hash_shift))
nht = neigh_hash_grow(tbl, nht->hash_shift + 1);
hash_val = tbl->hash(pkey, dev, nht->hash_rnd) >> (32 - nht->hash_shift);
if (n->parms->dead) {
rc = ERR_PTR(-EINVAL);
goto out_tbl_unlock;
}
for (n1 = rcu_dereference_protected(nht->hash_buckets[hash_val],
lockdep_is_held(&tbl->lock));
n1 != NULL;
n1 = rcu_dereference_protected(n1->next,
lockdep_is_held(&tbl->lock))) {
if (dev == n1->dev && !memcmp(n1->primary_key, pkey, key_len)) {
if (want_ref)
neigh_hold(n1);
rc = n1;
goto out_tbl_unlock;
}
}
n->dead = 0;
if (want_ref)
neigh_hold(n);
rcu_assign_pointer(n->next,
rcu_dereference_protected(nht->hash_buckets[hash_val],
lockdep_is_held(&tbl->lock)));
rcu_assign_pointer(nht->hash_buckets[hash_val], n);
write_unlock_bh(&tbl->lock);
neigh_dbg(2, "neigh %p is created\n", n);
rc = n;
out:
return rc;
out_tbl_unlock:
write_unlock_bh(&tbl->lock);
out_neigh_release:
neigh_release(n);
goto out;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 200 | 39.37% | 6 | 28.57% |
david s. miller | david s. miller | 108 | 21.26% | 7 | 33.33% |
eric dumazet | eric dumazet | 87 | 17.13% | 2 | 9.52% |
herbert xu | herbert xu | 55 | 10.83% | 3 | 14.29% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 49 | 9.65% | 1 | 4.76% |
jiri pirko | jiri pirko | 5 | 0.98% | 1 | 4.76% |
joe perches | joe perches | 4 | 0.79% | 1 | 4.76% |
| Total | 508 | 100.00% | 21 | 100.00% |
EXPORT_SYMBOL(__neigh_create);
static u32 pneigh_hash(const void *pkey, int key_len)
{
u32 hash_val = *(u32 *)(pkey + key_len - 4);
hash_val ^= (hash_val >> 16);
hash_val ^= hash_val >> 8;
hash_val ^= hash_val >> 4;
hash_val &= PNEIGH_HASHMASK;
return hash_val;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pavel emelianov | pavel emelianov | 49 | 85.96% | 1 | 50.00% |
hideaki yoshifuji | hideaki yoshifuji | 8 | 14.04% | 1 | 50.00% |
| Total | 57 | 100.00% | 2 | 100.00% |
static struct pneigh_entry *__pneigh_lookup_1(struct pneigh_entry *n,
struct net *net,
const void *pkey,
int key_len,
struct net_device *dev)
{
while (n) {
if (!memcmp(n->key, pkey, key_len) &&
net_eq(pneigh_net(n), net) &&
(n->dev == dev || !n->dev))
return n;
n = n->next;
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
hideaki yoshifuji | hideaki yoshifuji | 47 | 54.65% | 1 | 33.33% |
pavel emelianov | pavel emelianov | 36 | 41.86% | 1 | 33.33% |
david s. miller | david s. miller | 3 | 3.49% | 1 | 33.33% |
| Total | 86 | 100.00% | 3 | 100.00% |
struct pneigh_entry *__pneigh_lookup(struct neigh_table *tbl,
struct net *net, const void *pkey, struct net_device *dev)
{
int key_len = tbl->key_len;
u32 hash_val = pneigh_hash(pkey, key_len);
return __pneigh_lookup_1(tbl->phash_buckets[hash_val],
net, pkey, key_len, dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
hideaki yoshifuji | hideaki yoshifuji | 62 | 98.41% | 1 | 50.00% |
pavel emelianov | pavel emelianov | 1 | 1.59% | 1 | 50.00% |
| Total | 63 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL_GPL(__pneigh_lookup);
struct pneigh_entry * pneigh_lookup(struct neigh_table *tbl,
struct net *net, const void *pkey,
struct net_device *dev, int creat)
{
struct pneigh_entry *n;
int key_len = tbl->key_len;
u32 hash_val = pneigh_hash(pkey, key_len);
read_lock_bh(&tbl->lock);
n = __pneigh_lookup_1(tbl->phash_buckets[hash_val],
net, pkey, key_len, dev);
read_unlock_bh(&tbl->lock);
if (n || !creat)
goto out;
ASSERT_RTNL();
n = kmalloc(sizeof(*n) + key_len, GFP_KERNEL);
if (!n)
goto out;
write_pnet(&n->net, net);
memcpy(n->key, pkey, key_len);
n->dev = dev;
if (dev)
dev_hold(dev);
if (tbl->pconstructor && tbl->pconstructor(n)) {
if (dev)
dev_put(dev);
kfree(n);
n = NULL;
goto out;
}
write_lock_bh(&tbl->lock);
n->next = tbl->phash_buckets[hash_val];
tbl->phash_buckets[hash_val] = n;
write_unlock_bh(&tbl->lock);
out:
return n;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 172 | 72.57% | 4 | 36.36% |
hideaki yoshifuji | hideaki yoshifuji | 29 | 12.24% | 3 | 27.27% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 18 | 7.59% | 1 | 9.09% |
eric w. biederman | eric w. biederman | 11 | 4.64% | 1 | 9.09% |
eric dumazet | eric dumazet | 4 | 1.69% | 1 | 9.09% |
pavel emelianov | pavel emelianov | 3 | 1.27% | 1 | 9.09% |
| Total | 237 | 100.00% | 11 | 100.00% |
EXPORT_SYMBOL(pneigh_lookup);
int pneigh_delete(struct neigh_table *tbl, struct net *net, const void *pkey,
struct net_device *dev)
{
struct pneigh_entry *n, **np;
int key_len = tbl->key_len;
u32 hash_val = pneigh_hash(pkey, key_len);
write_lock_bh(&tbl->lock);
for (np = &tbl->phash_buckets[hash_val]; (n = *np) != NULL;
np = &n->next) {
if (!memcmp(n->key, pkey, key_len) && n->dev == dev &&
net_eq(pneigh_net(n), net)) {
*np = n->next;
write_unlock_bh(&tbl->lock);
if (tbl->pdestructor)
tbl->pdestructor(n);
if (n->dev)
dev_put(n->dev);
kfree(n);
return 0;
}
}
write_unlock_bh(&tbl->lock);
return -ENOENT;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 130 | 71.43% | 4 | 36.36% |
hideaki yoshifuji | hideaki yoshifuji | 24 | 13.19% | 4 | 36.36% |
david s. miller | david s. miller | 16 | 8.79% | 1 | 9.09% |
eric w. biederman | eric w. biederman | 8 | 4.40% | 1 | 9.09% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 4 | 2.20% | 1 | 9.09% |
| Total | 182 | 100.00% | 11 | 100.00% |
static int pneigh_ifdown(struct neigh_table *tbl, struct net_device *dev)
{
struct pneigh_entry *n, **np;
u32 h;
for (h = 0; h <= PNEIGH_HASHMASK; h++) {
np = &tbl->phash_buckets[h];
while ((n = *np) != NULL) {
if (!dev || n->dev == dev) {
*np = n->next;
if (tbl->pdestructor)
tbl->pdestructor(n);
if (n->dev)
dev_put(n->dev);
kfree(n);
continue;
}
np = &n->next;
}
}
return -ENOENT;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 113 | 87.60% | 3 | 60.00% |
hideaki yoshifuji | hideaki yoshifuji | 13 | 10.08% | 1 | 20.00% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 3 | 2.33% | 1 | 20.00% |
| Total | 129 | 100.00% | 5 | 100.00% |
static void neigh_parms_destroy(struct neigh_parms *parms);
static inline void neigh_parms_put(struct neigh_parms *parms)
{
if (atomic_dec_and_test(&parms->refcnt))
neigh_parms_destroy(parms);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
denis v. lunev | denis v. lunev | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
/*
* neighbour must already be out of the table;
*
*/
void neigh_destroy(struct neighbour *neigh)
{
struct net_device *dev = neigh->dev;
NEIGH_CACHE_STAT_INC(neigh->tbl, destroys);
if (!neigh->dead) {
pr_warn("Destroying alive neighbour %p\n", neigh);
dump_stack();
return;
}
if (neigh_del_timer(neigh))
pr_warn("Impossible event\n");
write_lock_bh(&neigh->lock);
__skb_queue_purge(&neigh->arp_queue);
write_unlock_bh(&neigh->lock);
neigh->arp_queue_len_bytes = 0;
if (dev->netdev_ops->ndo_neigh_destroy)
dev->netdev_ops->ndo_neigh_destroy(neigh);
dev_put(dev);
neigh_parms_put(neigh->parms);
neigh_dbg(2, "neigh %p is destroyed\n", neigh);
atomic_dec(&neigh->tbl->entries);
kfree_rcu(neigh, rcu);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 61 | 42.07% | 2 | 14.29% |
david s. miller | david s. miller | 43 | 29.66% | 6 | 42.86% |
eric dumazet | eric dumazet | 23 | 15.86% | 2 | 14.29% |
herbert xu | herbert xu | 11 | 7.59% | 2 | 14.29% |
joe perches | joe perches | 7 | 4.83% | 2 | 14.29% |
| Total | 145 | 100.00% | 14 | 100.00% |
EXPORT_SYMBOL(neigh_destroy);
/* Neighbour state is suspicious;
disable fast path.
Called with write_locked neigh.
*/
static void neigh_suspect(struct neighbour *neigh)
{
neigh_dbg(2, "neigh %p is suspected\n", neigh);
neigh->output = neigh->ops->output;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 26 | 86.67% | 1 | 50.00% |
joe perches | joe perches | 4 | 13.33% | 1 | 50.00% |
| Total | 30 | 100.00% | 2 | 100.00% |
/* Neighbour state is OK;
enable fast path.
Called with write_locked neigh.
*/
static void neigh_connect(struct neighbour *neigh)
{
neigh_dbg(2, "neigh %p is connected\n", neigh);
neigh->output = neigh->ops->connected_output;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 26 | 86.67% | 1 | 50.00% |
joe perches | joe perches | 4 | 13.33% | 1 | 50.00% |
| Total | 30 | 100.00% | 2 | 100.00% |
static void neigh_periodic_work(struct work_struct *work)
{
struct neigh_table *tbl = container_of(work, struct neigh_table, gc_work.work);
struct neighbour *n;
struct neighbour __rcu **np;
unsigned int i;
struct neigh_hash_table *nht;
NEIGH_CACHE_STAT_INC(tbl, periodic_gc_runs);
write_lock_bh(&tbl->lock);
nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
/*
* periodically recompute ReachableTime from random function
*/
if (time_after(jiffies, tbl->last_rand + 300 * HZ)) {
struct neigh_parms *p;
tbl->last_rand = jiffies;
list_for_each_entry(p, &tbl->parms_list, list)
p->reachable_time =
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
}
if (atomic_read(&tbl->entries) < tbl->gc_thresh1)
goto out;
for (i = 0 ; i < (1 << nht->hash_shift); i++) {
np = &nht->hash_buckets[i];
while ((n = rcu_dereference_protected(*np,
lockdep_is_held(&tbl->lock))) != NULL) {
unsigned int state;
write_lock(&n->lock);
state = n->nud_state;
if (state & (NUD_PERMANENT | NUD_IN_TIMER)) {
write_unlock(&n->lock);
goto next_elt;
}
if (time_before(n->used, n->confirmed))
n->used = n->confirmed;
if (atomic_read(&n->refcnt) == 1 &&
(state == NUD_FAILED ||
time_after(jiffies, n->used + NEIGH_VAR(n->parms, GC_STALETIME)))) {
*np = n->next;
n->dead = 1;
write_unlock(&n->lock);
neigh_cleanup_and_release(n);
continue;
}
write_unlock(&n->lock);
next_elt:
np = &n->next;
}
/*
* It's fine to release lock here, even if hash table
* grows while we are preempted.
*/
write_unlock_bh(&tbl->lock);
cond_resched();
write_lock_bh(&tbl->lock);
nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
}
out:
/* Cycle through all hash buckets every BASE_REACHABLE_TIME/2 ticks.
* ARP entry timeouts range from 1/2 BASE_REACHABLE_TIME to 3/2
* BASE_REACHABLE_TIME.
*/
queue_delayed_work(system_power_efficient_wq, &tbl->gc_work,
NEIGH_VAR(&tbl->parms, BASE_REACHABLE_TIME) >> 1);
write_unlock_bh(&tbl->lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 217 | 51.91% | 5 | 23.81% |
eric dumazet | eric dumazet | 91 | 21.77% | 3 | 14.29% |
david s. miller | david s. miller | 26 | 6.22% | 3 | 14.29% |
duan jiong | duan jiong | 17 | 4.07% | 1 | 4.76% |
michel machado | michel machado | 17 | 4.07% | 1 | 4.76% |
jiri pirko | jiri pirko | 17 | 4.07% | 1 | 4.76% |
hideaki yoshifuji | hideaki yoshifuji | 14 | 3.35% | 2 | 9.52% |
nicolas dichtel | nicolas dichtel | 8 | 1.91% | 1 | 4.76% |
arjan van de ven | arjan van de ven | 6 | 1.44% | 1 | 4.76% |
viresh kumar | viresh kumar | 3 | 0.72% | 1 | 4.76% |
thomas graf | thomas graf | 1 | 0.24% | 1 | 4.76% |
alan cox | alan cox | 1 | 0.24% | 1 | 4.76% |
| Total | 418 | 100.00% | 21 | 100.00% |
static __inline__ int neigh_max_probes(struct neighbour *n)
{
struct neigh_parms *p = n->parms;
return NEIGH_VAR(p, UCAST_PROBES) + NEIGH_VAR(p, APP_PROBES) +
(n->nud_state & NUD_PROBE ? NEIGH_VAR(p, MCAST_REPROBES) :
NEIGH_VAR(p, MCAST_PROBES));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 26 | 44.83% | 1 | 25.00% |
jiri pirko | jiri pirko | 15 | 25.86% | 1 | 25.00% |
yoshifuji hideaki | yoshifuji hideaki | 11 | 18.97% | 1 | 25.00% |
timo teras | timo teras | 6 | 10.34% | 1 | 25.00% |
| Total | 58 | 100.00% | 4 | 100.00% |
static void neigh_invalidate(struct neighbour *neigh)
__releases(neigh->lock)
__acquires(neigh->lock)
{
struct sk_buff *skb;
NEIGH_CACHE_STAT_INC(neigh->tbl, res_failed);
neigh_dbg(2, "neigh %p is failed\n", neigh);
neigh->updated = jiffies;
/* It is very thin place. report_unreachable is very complicated
routine. Particularly, it can hit the same neighbour entry!
So that, we try to be accurate and avoid dead loop. --ANK
*/
while (neigh->nud_state == NUD_FAILED &&
(skb = __skb_dequeue(&neigh->arp_queue)) != NULL) {
write_unlock(&neigh->lock);
neigh->ops->error_report(neigh, skb);
write_lock(&neigh->lock);
}
__skb_queue_purge(&neigh->arp_queue);
neigh->arp_queue_len_bytes = 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
timo teras | timo teras | 95 | 80.51% | 1 | 20.00% |
eric dumazet | eric dumazet | 19 | 16.10% | 3 | 60.00% |
joe perches | joe perches | 4 | 3.39% | 1 | 20.00% |
| Total | 118 | 100.00% | 5 | 100.00% |
static void neigh_probe(struct neighbour *neigh)
__releases(neigh->lock)
{
struct sk_buff *skb = skb_peek_tail(&neigh->arp_queue);
/* keep skb alive even if arp_queue overflows */
if (skb)
skb = skb_clone(skb, GFP_ATOMIC);
write_unlock(&neigh->lock);
neigh->ops->solicit(neigh, skb);
atomic_inc(&neigh->probes);
kfree_skb(skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
eric dumazet | eric dumazet | 74 | 97.37% | 1 | 33.33% |
hannes frederic sowa | hannes frederic sowa | 1 | 1.32% | 1 | 33.33% |
junwei zhang | junwei zhang | 1 | 1.32% | 1 | 33.33% |
| Total | 76 | 100.00% | 3 | 100.00% |
/* Called when a timer expires for a neighbour entry. */
static void neigh_timer_handler(unsigned long arg)
{
unsigned long now, next;
struct neighbour *neigh = (struct neighbour *)arg;
unsigned int state;
int notify = 0;
write_lock(&neigh->lock);
state = neigh->nud_state;
now = jiffies;
next = now + HZ;
if (!(state & NUD_IN_TIMER))
goto out;
if (state & NUD_REACHABLE) {
if (time_before_eq(now,
neigh->confirmed + neigh->parms->reachable_time)) {
neigh_dbg(2, "neigh %p is still alive\n", neigh);
next = neigh->confirmed + neigh->parms->reachable_time;
} else if (time_before_eq(now,
neigh->used +
NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME))) {
neigh_dbg(2, "neigh %p is delayed\n", neigh);
neigh->nud_state = NUD_DELAY;
neigh->updated = jiffies;
neigh_suspect(neigh);
next = now + NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME);
} else {
neigh_dbg(2, "neigh %p is suspected\n", neigh);
neigh->nud_state = NUD_STALE;
neigh->updated = jiffies;
neigh_suspect(neigh);
notify = 1;
}
} else if (state & NUD_DELAY) {
if (time_before_eq(now,
neigh->confirmed +
NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME))) {
neigh_dbg(2, "neigh %p is now reachable\n", neigh);
neigh->nud_state = NUD_REACHABLE;
neigh->updated = jiffies;
neigh_connect(neigh);
notify = 1;
next = neigh->confirmed + neigh->parms->reachable_time;
} else {
neigh_dbg(2, "neigh %p is probed\n", neigh);
neigh->nud_state = NUD_PROBE;
neigh->updated = jiffies;
atomic_set(&neigh->probes, 0);
notify = 1;
next = now + NEIGH_VAR(neigh->parms, RETRANS_TIME);
}
} else {
/* NUD_PROBE|NUD_INCOMPLETE */
next = now + NEIGH_VAR(neigh->parms, RETRANS_TIME);
}
if ((neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) &&
atomic_read(&neigh->probes) >= neigh_max_probes(neigh)) {
neigh->nud_state = NUD_FAILED;
notify = 1;
neigh_invalidate(neigh);
goto out;
}
if (neigh->nud_state & NUD_IN_TIMER) {
if (time_before(next, jiffies + HZ/2))
next = jiffies + HZ/2;
if (!mod_timer(&neigh->timer, next))
neigh_hold(neigh);
}
if (neigh->nud_state & (NUD_INCOMPLETE | NUD_PROBE)) {
neigh_probe(neigh);
} else {
out:
write_unlock(&neigh->lock);
}
if (notify)
neigh_update_notify(neigh);
neigh_release(neigh);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
hideaki yoshifuji | hideaki yoshifuji | 239 | 47.90% | 3 | 16.67% |
pre-git | pre-git | 173 | 34.67% | 3 | 16.67% |
jiri pirko | jiri pirko | 25 | 5.01% | 1 | 5.56% |
joe perches | joe perches | 20 | 4.01% | 1 | 5.56% |
herbert xu | herbert xu | 12 | 2.40% | 1 | 5.56% |
tom tucker | tom tucker | 12 | 2.40% | 1 | 5.56% |
david s. miller | david s. miller | 7 | 1.40% | 2 | 11.11% |
erik kline | erik kline | 4 | 0.80% | 1 | 5.56% |
duan jiong | duan jiong | 3 | 0.60% | 1 | 5.56% |
eric dumazet | eric dumazet | 2 | 0.40% | 2 | 11.11% |
thomas graf | thomas graf | 1 | 0.20% | 1 | 5.56% |
timo teras | timo teras | 1 | 0.20% | 1 | 5.56% |
| Total | 499 | 100.00% | 18 | 100.00% |
int __neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
{
int rc;
bool immediate_probe = false;
write_lock_bh(&neigh->lock);
rc = 0;
if (neigh->nud_state & (NUD_CONNECTED | NUD_DELAY | NUD_PROBE))
goto out_unlock_bh;
if (neigh->dead)
goto out_dead;
if (!(neigh->nud_state & (NUD_STALE | NUD_INCOMPLETE))) {
if (NEIGH_VAR(neigh->parms, MCAST_PROBES) +
NEIGH_VAR(neigh->parms, APP_PROBES)) {
unsigned long next, now = jiffies;
atomic_set(&neigh->probes,
NEIGH_VAR(neigh->parms, UCAST_PROBES));
neigh->nud_state = NUD_INCOMPLETE;
neigh->updated = now;
next = now + max(NEIGH_VAR(neigh->parms, RETRANS_TIME),
HZ/2);
neigh_add_timer(neigh, next);
immediate_probe = true;
} else {
neigh->nud_state = NUD_FAILED;
neigh->updated = jiffies;
write_unlock_bh(&neigh->lock);
kfree_skb(skb);
return 1;
}
} else if (neigh->nud_state & NUD_STALE) {
neigh_dbg(2, "neigh %p is delayed\n", neigh);
neigh->nud_state = NUD_DELAY;
neigh->updated = jiffies;
neigh_add_timer(neigh, jiffies +
NEIGH_VAR(neigh->parms, DELAY_PROBE_TIME));
}
if (neigh->nud_state == NUD_INCOMPLETE) {
if (skb) {
while (neigh->arp_queue_len_bytes + skb->truesize >
NEIGH_VAR(neigh->parms, QUEUE_LEN_BYTES)) {
struct sk_buff *buff;
buff = __skb_dequeue(&neigh->arp_queue);
if (!buff)
break;
neigh->arp_queue_len_bytes -= buff->truesize;
kfree_skb(buff);
NEIGH_CACHE_STAT_INC(neigh->tbl, unres_discards);
}
skb_dst_force(skb);
__skb_queue_tail(&neigh->arp_queue, skb);
neigh->arp_queue_len_bytes += skb->truesize;
}
rc = 1;
}
out_unlock_bh:
if (immediate_probe)
neigh_probe(neigh);
else
write_unlock(&neigh->lock);
local_bh_enable();
return rc;
out_dead:
if (neigh->nud_state & NUD_STALE)
goto out_unlock_bh;
write_unlock_bh(&neigh->lock);
kfree_skb(skb);
return 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 173 | 42.30% | 3 | 18.75% |
eric dumazet | eric dumazet | 81 | 19.80% | 3 | 18.75% |
hideaki yoshifuji | hideaki yoshifuji | 50 | 12.22% | 2 | 12.50% |
julian anastasov | julian anastasov | 38 | 9.29% | 1 | 6.25% |
jiri pirko | jiri pirko | 30 | 7.33% | 1 | 6.25% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 16 | 3.91% | 1 | 6.25% |
neil horman | neil horman | 9 | 2.20% | 1 | 6.25% |
david s. miller | david s. miller | 7 | 1.71% | 2 | 12.50% |
joe perches | joe perches | 4 | 0.98% | 1 | 6.25% |
linus torvalds | linus torvalds | 1 | 0.24% | 1 | 6.25% |
| Total | 409 | 100.00% | 16 | 100.00% |
EXPORT_SYMBOL(__neigh_event_send);
static void neigh_update_hhs(struct neighbour *neigh)
{
struct hh_cache *hh;
void (*update)(struct hh_cache*, const struct net_device*, const unsigned char *)
= NULL;
if (neigh->dev->header_ops)
update = neigh->dev->header_ops->cache_update;
if (update) {
hh = &neigh->hh;
if (hh->hh_len) {
write_seqlock_bh(&hh->hh_lock);
update(hh, neigh->dev, neigh->ha);
write_sequnlock_bh(&hh->hh_lock);
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 80 | 74.77% | 3 | 37.50% |
doug kehn | doug kehn | 13 | 12.15% | 1 | 12.50% |
david s. miller | david s. miller | 7 | 6.54% | 2 | 25.00% |
stephen hemminger | stephen hemminger | 7 | 6.54% | 2 | 25.00% |
| Total | 107 | 100.00% | 8 | 100.00% |
/* Generic update routine.
-- lladdr is new lladdr or NULL, if it is not supplied.
-- new is new state.
-- flags
NEIGH_UPDATE_F_OVERRIDE allows to override existing lladdr,
if it is different.
NEIGH_UPDATE_F_WEAK_OVERRIDE will suspect existing "connected"
lladdr instead of overriding it
if it is different.
It also allows to retain current state
if lladdr is unchanged.
NEIGH_UPDATE_F_ADMIN means that the change is administrative.
NEIGH_UPDATE_F_OVERRIDE_ISROUTER allows to override existing
NTF_ROUTER flag.
NEIGH_UPDATE_F_ISROUTER indicates if the neighbour is known as
a router.
Caller MUST hold reference count on the entry.
*/
int neigh_update(struct neighbour *neigh, const u8 *lladdr, u8 new,
u32 flags)
{
u8 old;
int err;
int notify = 0;
struct net_device *dev;
int update_isrouter = 0;
write_lock_bh(&neigh->lock);
dev = neigh->dev;
old = neigh->nud_state;
err = -EPERM;
if (!(flags & NEIGH_UPDATE_F_ADMIN) &&
(old & (NUD_NOARP | NUD_PERMANENT)))
goto out;
if (neigh->dead)
goto out;
if (!(new & NUD_VALID)) {
neigh_del_timer(neigh);
if (old & NUD_CONNECTED)
neigh_suspect(neigh);
neigh->nud_state = new;
err = 0;
notify = old & NUD_VALID;
if ((old & (NUD_INCOMPLETE | NUD_PROBE)) &&
(new & NUD_FAILED)) {
neigh_invalidate(neigh);
notify = 1;
}
goto out;
}
/* Compare new lladdr with cached one */
if (!dev->addr_len) {
/* First case: device needs no address. */
lladdr = neigh->ha;
} else if (lladdr) {
/* The second case: if something is already cached
and a new address is proposed:
- compare new & old
- if they are different, check override flag
*/
if ((old & NUD_VALID) &&
!memcmp(lladdr, neigh->ha, dev->addr_len))
lladdr = neigh->ha;
} else {
/* No address is supplied; if we know something,
use it, otherwise discard the request.
*/
err = -EINVAL;
if (!(old & NUD_VALID))
goto out;
lladdr = neigh->ha;
}
if (new & NUD_CONNECTED)
neigh->confirmed = jiffies;
neigh->updated = jiffies;
/* If entry was valid and address is not changed,
do not change entry state, if new one is STALE.
*/
err = 0;
update_isrouter = flags & NEIGH_UPDATE_F_OVERRIDE_ISROUTER;
if (old & NUD_VALID) {
if (lladdr != neigh->ha && !(flags & NEIGH_UPDATE_F_OVERRIDE)) {
update_isrouter = 0;
if ((flags & NEIGH_UPDATE_F_WEAK_OVERRIDE) &&
(old & NUD_CONNECTED)) {
lladdr = neigh->ha;
new = NUD_STALE;
} else
goto out;
} else {
if (lladdr == neigh->ha && new == NUD_STALE &&
((flags & NEIGH_UPDATE_F_WEAK_OVERRIDE) ||
(old & NUD_CONNECTED))
)
new = old;
}
}
if (new != old) {
neigh_del_timer(neigh);
if (new & NUD_PROBE)
atomic_set(&neigh->probes, 0);
if (new & NUD_IN_TIMER)
neigh_add_timer(neigh, (jiffies +
((new & NUD_REACHABLE) ?
neigh->parms->reachable_time :
0)));
neigh->nud_state = new;
notify = 1;
}
if (lladdr != neigh->ha) {
write_seqlock(&neigh->ha_lock);
memcpy(&neigh->ha, lladdr, dev->addr_len);
write_sequnlock(&neigh->ha_lock);
neigh_update_hhs(neigh);
if (!(new & NUD_CONNECTED))
neigh->confirmed = jiffies -
(NEIGH_VAR(neigh->parms, BASE_REACHABLE_TIME) << 1);
notify = 1;
}
if (new == old)
goto out;
if (new & NUD_CONNECTED)
neigh_connect(neigh);
else
neigh_suspect(neigh);
if (!(old & NUD_VALID)) {
struct sk_buff *skb;
/* Again: avoid dead loop if something went wrong */
while (neigh->nud_state & NUD_VALID &&
(skb = __skb_dequeue(&neigh->arp_queue)) != NULL) {
struct dst_entry *dst = skb_dst(skb);
struct neighbour *n2, *n1 = neigh;
write_unlock_bh(&neigh->lock);
rcu_read_lock();
/* Why not just use 'neigh' as-is? The problem is that
* things such as shaper, eql, and sch_teql can end up
* using alternative, different, neigh objects to output
* the packet in the output path. So what we need to do
* here is re-lookup the top-level neigh in the path so
* we can reinject the packet there.
*/
n2 = NULL;
if (dst) {
n2 = dst_neigh_lookup_skb(dst, skb);
if (n2)
n1 = n2;
}
n1->output(n1, skb);
if (n2)
neigh_release(n2);
rcu_read_unlock();
write_lock_bh(&neigh->lock);
}
__skb_queue_purge(&neigh->arp_queue);
neigh->arp_queue_len_bytes = 0;
}
out:
if (update_isrouter) {
neigh->flags = (flags & NEIGH_UPDATE_F_ISROUTER) ?
(neigh->flags | NTF_ROUTER) :
(neigh->flags & ~NTF_ROUTER);
}
write_unlock_bh(&neigh->lock);
if (notify)
neigh_update_notify(neigh);
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 428 | 57.45% | 7 | 23.33% |
hideaki yoshifuji | hideaki yoshifuji | 158 | 21.21% | 6 | 20.00% |
david s. miller | david s. miller | 49 | 6.58% | 4 | 13.33% |
timo teras | timo teras | 29 | 3.89% | 1 | 3.33% |
eric dumazet | eric dumazet | 25 | 3.36% | 4 | 13.33% |
erik kline | erik kline | 16 | 2.15% | 1 | 3.33% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 11 | 1.48% | 1 | 3.33% |
julian anastasov | julian anastasov | 9 | 1.21% | 1 | 3.33% |
li rongqing | li rongqing | 6 | 0.81% | 1 | 3.33% |
jiri pirko | jiri pirko | 5 | 0.67% | 1 | 3.33% |
tom tucker | tom tucker | 4 | 0.54% | 1 | 3.33% |
bob gilligan | bob gilligan | 4 | 0.54% | 1 | 3.33% |
thomas graf | thomas graf | 1 | 0.13% | 1 | 3.33% |
| Total | 745 | 100.00% | 30 | 100.00% |
EXPORT_SYMBOL(neigh_update);
/* Update the neigh to listen temporarily for probe responses, even if it is
* in a NUD_FAILED state. The caller has to hold neigh->lock for writing.
*/
void __neigh_set_probe_once(struct neighbour *neigh)
{
if (neigh->dead)
return;
neigh->updated = jiffies;
if (!(neigh->nud_state & NUD_FAILED))
return;
neigh->nud_state = NUD_INCOMPLETE;
atomic_set(&neigh->probes, neigh_max_probes(neigh));
neigh_add_timer(neigh,
jiffies + NEIGH_VAR(neigh->parms, RETRANS_TIME));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri benc | jiri benc | 61 | 87.14% | 1 | 33.33% |
julian anastasov | julian anastasov | 7 | 10.00% | 1 | 33.33% |
duan jiong | duan jiong | 2 | 2.86% | 1 | 33.33% |
| Total | 70 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(__neigh_set_probe_once);
struct neighbour *neigh_event_ns(struct neigh_table *tbl,
u8 *lladdr, void *saddr,
struct net_device *dev)
{
struct neighbour *neigh = __neigh_lookup(tbl, saddr, dev,
lladdr || !dev->addr_len);
if (neigh)
neigh_update(neigh, lladdr, NUD_STALE,
NEIGH_UPDATE_F_OVERRIDE);
return neigh;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 61 | 95.31% | 2 | 50.00% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 2 | 3.12% | 1 | 25.00% |
hideaki yoshifuji | hideaki yoshifuji | 1 | 1.56% | 1 | 25.00% |
| Total | 64 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(neigh_event_ns);
/* called with read_lock_bh(&n->lock); */
static void neigh_hh_init(struct neighbour *n)
{
struct net_device *dev = n->dev;
__be16 prot = n->tbl->protocol;
struct hh_cache *hh = &n->hh;
write_lock_bh(&n->lock);
/* Only one thread can come in here and initialize the
* hh_cache entry.
*/
if (!hh->hh_len)
dev->header_ops->cache(n, hh, prot);
write_unlock_bh(&n->lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 26 | 34.21% | 3 | 30.00% |
eric dumazet | eric dumazet | 25 | 32.89% | 2 | 20.00% |
pre-git | pre-git | 16 | 21.05% | 2 | 20.00% |
eric w. biederman | eric w. biederman | 3 | 3.95% | 1 | 10.00% |
andrew morton | andrew morton | 3 | 3.95% | 1 | 10.00% |
stephen hemminger | stephen hemminger | 3 | 3.95% | 1 | 10.00% |
| Total | 76 | 100.00% | 10 | 100.00% |
/* Slow and careful. */
int neigh_resolve_output(struct neighbour *neigh, struct sk_buff *skb)
{
int rc = 0;
if (!neigh_event_send(neigh, skb)) {
int err;
struct net_device *dev = neigh->dev;
unsigned int seq;
if (dev->header_ops->cache && !neigh->hh.hh_len)
neigh_hh_init(neigh);
do {
__skb_pull(skb, skb_network_offset(skb));
seq = read_seqbegin(&neigh->ha_lock);
err = dev_hard_header(skb, dev, ntohs(skb->protocol),
neigh->ha, NULL, skb->len);
} while (read_seqretry(&neigh->ha_lock, seq));
if (err >= 0)
rc = dev_queue_xmit(skb);
else
goto out_kfree_skb;
}
out:
return rc;
out_kfree_skb:
rc = -EINVAL;
kfree_skb(skb);
goto out;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 94 | 56.29% | 4 | 33.33% |
eric dumazet | eric dumazet | 25 | 14.97% | 1 | 8.33% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 25 | 14.97% | 1 | 8.33% |
ramesh nagappa | ramesh nagappa | 10 | 5.99% | 1 | 8.33% |
david s. miller | david s. miller | 9 | 5.39% | 3 | 25.00% |
stephen hemminger | stephen hemminger | 4 | 2.40% | 2 | 16.67% |
| Total | 167 | 100.00% | 12 | 100.00% |
EXPORT_SYMBOL(neigh_resolve_output);
/* As fast as possible without hh cache */
int neigh_connected_output(struct neighbour *neigh, struct sk_buff *skb)
{
struct net_device *dev = neigh->dev;
unsigned int seq;
int err;
do {
__skb_pull(skb, skb_network_offset(skb));
seq = read_seqbegin(&neigh->ha_lock);
err = dev_hard_header(skb, dev, ntohs(skb->protocol),
neigh->ha, NULL, skb->len);
} while (read_seqretry(&neigh->ha_lock, seq));
if (err >= 0)
err = dev_queue_xmit(skb);
else {
err = -EINVAL;
kfree_skb(skb);
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 78 | 63.93% | 4 | 36.36% |
eric dumazet | eric dumazet | 17 | 13.93% | 1 | 9.09% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 15 | 12.30% | 2 | 18.18% |
david s. miller | david s. miller | 9 | 7.38% | 2 | 18.18% |
ramesh nagappa | ramesh nagappa | 2 | 1.64% | 1 | 9.09% |
stephen hemminger | stephen hemminger | 1 | 0.82% | 1 | 9.09% |
| Total | 122 | 100.00% | 11 | 100.00% |
EXPORT_SYMBOL(neigh_connected_output);
int neigh_direct_output(struct neighbour *neigh, struct sk_buff *skb)
{
return dev_queue_xmit(skb);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 21 | 100.00% | 1 | 100.00% |
| Total | 21 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(neigh_direct_output);
static void neigh_proxy_process(unsigned long arg)
{
struct neigh_table *tbl = (struct neigh_table *)arg;
long sched_next = 0;
unsigned long now = jiffies;
struct sk_buff *skb, *n;
spin_lock(&tbl->proxy_queue.lock);
skb_queue_walk_safe(&tbl->proxy_queue, skb, n) {
long tdif = NEIGH_CB(skb)->sched_next - now;
if (tdif <= 0) {
struct net_device *dev = skb->dev;
__skb_unlink(skb, &tbl->proxy_queue);
if (tbl->proxy_redo && netif_running(dev)) {
rcu_read_lock();
tbl->proxy_redo(skb);
rcu_read_unlock();
} else {
kfree_skb(skb);
}
dev_put(dev);
} else if (!sched_next || tdif < sched_next)
sched_next = tdif;
}
del_timer(&tbl->proxy_timer);
if (sched_next)
mod_timer(&tbl->proxy_timer, jiffies + sched_next);
spin_unlock(&tbl->proxy_queue.lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 157 | 83.96% | 3 | 50.00% |
david s. miller | david s. miller | 16 | 8.56% | 1 | 16.67% |
eric dumazet | eric dumazet | 10 | 5.35% | 1 | 16.67% |
patrick mchardy | patrick mchardy | 4 | 2.14% | 1 | 16.67% |
| Total | 187 | 100.00% | 6 | 100.00% |
void pneigh_enqueue(struct neigh_table *tbl, struct neigh_parms *p,
struct sk_buff *skb)
{
unsigned long now = jiffies;
unsigned long sched_next = now + (prandom_u32() %
NEIGH_VAR(p, PROXY_DELAY));
if (tbl->proxy_queue.qlen > NEIGH_VAR(p, PROXY_QLEN)) {
kfree_skb(skb);
return;
}
NEIGH_CB(skb)->sched_next = sched_next;
NEIGH_CB(skb)->flags |= LOCALLY_ENQUEUED;
spin_lock(&tbl->proxy_queue.lock);
if (del_timer(&tbl->proxy_timer)) {
if (time_before(tbl->proxy_timer.expires, sched_next))
sched_next = tbl->proxy_timer.expires;
}
skb_dst_drop(skb);
dev_hold(skb->dev);
__skb_queue_tail(&tbl->proxy_queue, skb);
mod_timer(&tbl->proxy_timer, sched_next);
spin_unlock(&tbl->proxy_queue.lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 131 | 77.06% | 2 | 28.57% |
hideaki yoshifuji | hideaki yoshifuji | 16 | 9.41% | 1 | 14.29% |
patrick mchardy | patrick mchardy | 11 | 6.47% | 1 | 14.29% |
jiri pirko | jiri pirko | 10 | 5.88% | 1 | 14.29% |
aruna-hewapathirane | aruna-hewapathirane | 1 | 0.59% | 1 | 14.29% |
eric dumazet | eric dumazet | 1 | 0.59% | 1 | 14.29% |
| Total | 170 | 100.00% | 7 | 100.00% |
EXPORT_SYMBOL(pneigh_enqueue);
static inline struct neigh_parms *lookup_neigh_parms(struct neigh_table *tbl,
struct net *net, int ifindex)
{
struct neigh_parms *p;
list_for_each_entry(p, &tbl->parms_list, list) {
if ((p->dev && p->dev->ifindex == ifindex && net_eq(neigh_parms_net(p), net)) ||
(!p->dev && !ifindex && net_eq(net, &init_net)))
return p;
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
eric w. biederman | eric w. biederman | 60 | 68.97% | 1 | 14.29% |
gao feng | gao feng | 8 | 9.20% | 1 | 14.29% |
nicolas dichtel | nicolas dichtel | 8 | 9.20% | 1 | 14.29% |
hideaki yoshifuji | hideaki yoshifuji | 7 | 8.05% | 2 | 28.57% |
denis v. lunev | denis v. lunev | 3 | 3.45% | 1 | 14.29% |
tobias klauser | tobias klauser | 1 | 1.15% | 1 | 14.29% |
| Total | 87 | 100.00% | 7 | 100.00% |
struct neigh_parms *neigh_parms_alloc(struct net_device *dev,
struct neigh_table *tbl)
{
struct neigh_parms *p;
struct net *net = dev_net(dev);
const struct net_device_ops *ops = dev->netdev_ops;
p = kmemdup(&tbl->parms, sizeof(*p), GFP_KERNEL);
if (p) {
p->tbl = tbl;
atomic_set(&p->refcnt, 1);
p->reachable_time =
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
dev_hold(dev);
p->dev = dev;
write_pnet(&p->net, net);
p->sysctl_table = NULL;
if (ops->ndo_neigh_setup && ops->ndo_neigh_setup(dev, p)) {
dev_put(dev);
kfree(p);
return NULL;
}
write_lock_bh(&tbl->lock);
list_add(&p->list, &tbl->parms.list);
write_unlock_bh(&tbl->lock);
neigh_parms_data_state_cleanall(p);
}
return p;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 76 | 39.58% | 4 | 23.53% |
veaceslav falico | veaceslav falico | 30 | 15.62% | 1 | 5.88% |
eric w. biederman | eric w. biederman | 17 | 8.85% | 1 | 5.88% |
stephen hemminger | stephen hemminger | 12 | 6.25% | 1 | 5.88% |
thomas graf | thomas graf | 11 | 5.73% | 1 | 5.88% |
herbert xu | herbert xu | 10 | 5.21% | 1 | 5.88% |
jiri pirko | jiri pirko | 10 | 5.21% | 2 | 11.76% |
nicolas dichtel | nicolas dichtel | 8 | 4.17% | 1 | 5.88% |
krishna kumar | krishna kumar | 6 | 3.12% | 1 | 5.88% |
gao feng | gao feng | 4 | 2.08% | 1 | 5.88% |
eric dumazet | eric dumazet | 4 | 2.08% | 1 | 5.88% |
hideaki yoshifuji | hideaki yoshifuji | 3 | 1.56% | 1 | 5.88% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 1 | 0.52% | 1 | 5.88% |
| Total | 192 | 100.00% | 17 | 100.00% |
EXPORT_SYMBOL(neigh_parms_alloc);
static void neigh_rcu_free_parms(struct rcu_head *head)
{
struct neigh_parms *parms =
container_of(head, struct neigh_parms, rcu_head);
neigh_parms_put(parms);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 30 | 96.77% | 1 | 50.00% |
herbert xu | herbert xu | 1 | 3.23% | 1 | 50.00% |
| Total | 31 | 100.00% | 2 | 100.00% |
void neigh_parms_release(struct neigh_table *tbl, struct neigh_parms *parms)
{
if (!parms || parms == &tbl->parms)
return;
write_lock_bh(&tbl->lock);
list_del(&parms->list);
parms->dead = 1;
write_unlock_bh(&tbl->lock);
if (parms->dev)
dev_put(parms->dev);
call_rcu(&parms->rcu_head, neigh_rcu_free_parms);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 51 | 62.96% | 3 | 37.50% |
david s. miller | david s. miller | 19 | 23.46% | 2 | 25.00% |
herbert xu | herbert xu | 6 | 7.41% | 1 | 12.50% |
nicolas dichtel | nicolas dichtel | 4 | 4.94% | 1 | 12.50% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 1 | 1.23% | 1 | 12.50% |
| Total | 81 | 100.00% | 8 | 100.00% |
EXPORT_SYMBOL(neigh_parms_release);
static void neigh_parms_destroy(struct neigh_parms *parms)
{
kfree(parms);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
herbert xu | herbert xu | 15 | 93.75% | 1 | 50.00% |
denis v. lunev | denis v. lunev | 1 | 6.25% | 1 | 50.00% |
| Total | 16 | 100.00% | 2 | 100.00% |
static struct lock_class_key neigh_table_proxy_queue_class;
static struct neigh_table *neigh_tables[NEIGH_NR_TABLES] __read_mostly;
void neigh_table_init(int index, struct neigh_table *tbl)
{
unsigned long now = jiffies;
unsigned long phsize;
INIT_LIST_HEAD(&tbl->parms_list);
list_add(&tbl->parms.list, &tbl->parms_list);
write_pnet(&tbl->parms.net, &init_net);
atomic_set(&tbl->parms.refcnt, 1);
tbl->parms.reachable_time =
neigh_rand_reach_time(NEIGH_VAR(&tbl->parms, BASE_REACHABLE_TIME));
tbl->stats = alloc_percpu(struct neigh_statistics);
if (!tbl->stats)
panic("cannot create neighbour cache statistics");
#ifdef CONFIG_PROC_FS
if (!proc_create_data(tbl->id, 0, init_net.proc_net_stat,
&neigh_stat_seq_fops, tbl))
panic("cannot create neighbour proc dir entry");
#endif
RCU_INIT_POINTER(tbl->nht, neigh_hash_alloc(3));
phsize = (PNEIGH_HASHMASK + 1) * sizeof(struct pneigh_entry *);
tbl->phash_buckets = kzalloc(phsize, GFP_KERNEL);
if (!tbl->nht || !tbl->phash_buckets)
panic("cannot allocate neighbour cache hashes");
if (!tbl->entry_size)
tbl->entry_size = ALIGN(offsetof(struct neighbour, primary_key) +
tbl->key_len, NEIGH_PRIV_ALIGN);
else
WARN_ON(tbl->entry_size % NEIGH_PRIV_ALIGN);
rwlock_init(&tbl->lock);
INIT_DEFERRABLE_WORK(&tbl->gc_work, neigh_periodic_work);
queue_delayed_work(system_power_efficient_wq, &tbl->gc_work,
tbl->parms.reachable_time);
setup_timer(&tbl->proxy_timer, neigh_proxy_process, (unsigned long)tbl);
skb_queue_head_init_class(&tbl->proxy_queue,
&neigh_table_proxy_queue_class);
tbl->last_flush = now;
tbl->last_rand = now + tbl->parms.reachable_time * 20;
neigh_tables[index] = tbl;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 90 | 27.78% | 4 | 14.81% |
pre-git | pre-git | 81 | 25.00% | 1 | 3.70% |
hideaki yoshifuji | hideaki yoshifuji | 38 | 11.73% | 1 | 3.70% |
nicolas dichtel | nicolas dichtel | 23 | 7.10% | 1 | 3.70% |
eric dumazet | eric dumazet | 20 | 6.17% | 4 | 14.81% |
herbert xu | herbert xu | 12 | 3.70% | 1 | 3.70% |
pavel emelianov | pavel emelianov | 11 | 3.40% | 2 | 7.41% |
eric w. biederman | eric w. biederman | 10 | 3.09% | 2 | 7.41% |
andrew morton | andrew morton | 9 | 2.78% | 3 | 11.11% |
americo wang | americo wang | 7 | 2.16% | 1 | 3.70% |
jiri pirko | jiri pirko | 6 | 1.85% | 1 | 3.70% |
harald welte | harald welte | 4 | 1.23% | 1 | 3.70% |
alexey dobriyan | alexey dobriyan | 3 | 0.93% | 1 | 3.70% |
viresh kumar | viresh kumar | 3 | 0.93% | 1 | 3.70% |
wang chen | wang chen | 3 | 0.93% | 1 | 3.70% |
denis v. lunev | denis v. lunev | 3 | 0.93% | 1 | 3.70% |
tejun heo | tejun heo | 1 | 0.31% | 1 | 3.70% |
| Total | 324 | 100.00% | 27 | 100.00% |
EXPORT_SYMBOL(neigh_table_init);
int neigh_table_clear(int index, struct neigh_table *tbl)
{
neigh_tables[index] = NULL;
/* It is not clean... Fix it to unload IPv6 module safely */
cancel_delayed_work_sync(&tbl->gc_work);
del_timer_sync(&tbl->proxy_timer);
pneigh_queue_purge(&tbl->proxy_queue);
neigh_ifdown(tbl, NULL);
if (atomic_read(&tbl->entries))
pr_crit("neighbour leakage\n");
call_rcu(&rcu_dereference_protected(tbl->nht, 1)->rcu,
neigh_hash_free_rcu);
tbl->nht = NULL;
kfree(tbl->phash_buckets);
tbl->phash_buckets = NULL;
remove_proc_entry(tbl->id, init_net.proc_net_stat);
free_percpu(tbl->stats);
tbl->stats = NULL;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 53 | 40.77% | 3 | 21.43% |
david s. miller | david s. miller | 24 | 18.46% | 2 | 14.29% |
eric dumazet | eric dumazet | 13 | 10.00% | 3 | 21.43% |
kirill korotaev | kirill korotaev | 13 | 10.00% | 1 | 7.14% |
alexey dobriyan | alexey dobriyan | 11 | 8.46% | 1 | 7.14% |
americo wang | americo wang | 10 | 7.69% | 1 | 7.14% |
herbert xu | herbert xu | 4 | 3.08% | 1 | 7.14% |
tejun heo | tejun heo | 1 | 0.77% | 1 | 7.14% |
joe perches | joe perches | 1 | 0.77% | 1 | 7.14% |
| Total | 130 | 100.00% | 14 | 100.00% |
EXPORT_SYMBOL(neigh_table_clear);
static struct neigh_table *neigh_find_table(int family)
{
struct neigh_table *tbl = NULL;
switch (family) {
case AF_INET:
tbl = neigh_tables[NEIGH_ARP_TABLE];
break;
case AF_INET6:
tbl = neigh_tables[NEIGH_ND_TABLE];
break;
case AF_DECnet:
tbl = neigh_tables[NEIGH_DN_TABLE];
break;
}
return tbl;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
americo wang | americo wang | 60 | 100.00% | 1 | 100.00% |
| Total | 60 | 100.00% | 1 | 100.00% |
static int neigh_delete(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct net *net = sock_net(skb->sk);
struct ndmsg *ndm;
struct nlattr *dst_attr;
struct neigh_table *tbl;
struct neighbour *neigh;
struct net_device *dev = NULL;
int err = -EINVAL;
ASSERT_RTNL();
if (nlmsg_len(nlh) < sizeof(*ndm))
goto out;
dst_attr = nlmsg_find_attr(nlh, sizeof(*ndm), NDA_DST);
if (dst_attr == NULL)
goto out;
ndm = nlmsg_data(nlh);
if (ndm->ndm_ifindex) {
dev = __dev_get_by_index(net, ndm->ndm_ifindex);
if (dev == NULL) {
err = -ENODEV;
goto out;
}
}
tbl = neigh_find_table(ndm->ndm_family);
if (tbl == NULL)
return -EAFNOSUPPORT;
if (nla_len(dst_attr) < tbl->key_len)
goto out;
if (ndm->ndm_flags & NTF_PROXY) {
err = pneigh_delete(tbl, net, nla_data(dst_attr), dev);
goto out;
}
if (dev == NULL)
goto out;
neigh = neigh_lookup(tbl, nla_data(dst_attr), dev);
if (neigh == NULL) {
err = -ENOENT;
goto out;
}
err = neigh_update(neigh, NULL, NUD_FAILED,
NEIGH_UPDATE_F_OVERRIDE |
NEIGH_UPDATE_F_ADMIN);
neigh_release(neigh);
out:
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 130 | 47.79% | 4 | 28.57% |
thomas graf | thomas graf | 89 | 32.72% | 3 | 21.43% |
americo wang | americo wang | 17 | 6.25% | 1 | 7.14% |
eric w. biederman | eric w. biederman | 13 | 4.78% | 2 | 14.29% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 9 | 3.31% | 1 | 7.14% |
eric dumazet | eric dumazet | 8 | 2.94% | 1 | 7.14% |
hideaki yoshifuji | hideaki yoshifuji | 6 | 2.21% | 2 | 14.29% |
| Total | 272 | 100.00% | 14 | 100.00% |
static int neigh_add(struct sk_buff *skb, struct nlmsghdr *nlh)
{
int flags = NEIGH_UPDATE_F_ADMIN | NEIGH_UPDATE_F_OVERRIDE;
struct net *net = sock_net(skb->sk);
struct ndmsg *ndm;
struct nlattr *tb[NDA_MAX+1];
struct neigh_table *tbl;
struct net_device *dev = NULL;
struct neighbour *neigh;
void *dst, *lladdr;
int err;
ASSERT_RTNL();
err = nlmsg_parse(nlh, sizeof(*ndm), tb, NDA_MAX, NULL);
if (err < 0)
goto out;
err = -EINVAL;
if (tb[NDA_DST] == NULL)
goto out;
ndm = nlmsg_data(nlh);
if (ndm->ndm_ifindex) {
dev = __dev_get_by_index(net, ndm->ndm_ifindex);
if (dev == NULL) {
err = -ENODEV;
goto out;
}
if (tb[NDA_LLADDR] && nla_len(tb[NDA_LLADDR]) < dev->addr_len)
goto out;
}
tbl = neigh_find_table(ndm->ndm_family);
if (tbl == NULL)
return -EAFNOSUPPORT;
if (nla_len(tb[NDA_DST]) < tbl->key_len)
goto out;
dst = nla_data(tb[NDA_DST]);
lladdr = tb[NDA_LLADDR] ? nla_data(tb[NDA_LLADDR]) : NULL;
if (ndm->ndm_flags & NTF_PROXY) {
struct pneigh_entry *pn;
err = -ENOBUFS;
pn = pneigh_lookup(tbl, net, dst, dev, 1);
if (pn) {
pn->flags = ndm->ndm_flags;
err = 0;
}
goto out;
}
if (dev == NULL)
goto out;
neigh = neigh_lookup(tbl, dst, dev);
if (neigh == NULL) {
if (!(nlh->nlmsg_flags & NLM_F_CREATE)) {
err = -ENOENT;
goto out;
}
neigh = __neigh_lookup_errno(tbl, dst, dev);
if (IS_ERR(neigh)) {
err = PTR_ERR(neigh);
goto out;
}
} else {
if (nlh->nlmsg_flags & NLM_F_EXCL) {
err = -EEXIST;
neigh_release(neigh);
goto out;
}
if (!(nlh->nlmsg_flags & NLM_F_REPLACE))
flags &= ~NEIGH_UPDATE_F_OVERRIDE;
}
if (ndm->ndm_flags & NTF_USE) {
neigh_event_send(neigh, NULL);
err = 0;
} else
err = neigh_update(neigh, lladdr, ndm->ndm_state, flags);
neigh_release(neigh);
out:
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 263 | 55.25% | 4 | 25.00% |
pre-git | pre-git | 101 | 21.22% | 4 | 25.00% |
eric w. biederman | eric w. biederman | 35 | 7.35% | 3 | 18.75% |
americo wang | americo wang | 31 | 6.51% | 1 | 6.25% |
ville nuorvala | ville nuorvala | 24 | 5.04% | 1 | 6.25% |
eric dumazet | eric dumazet | 11 | 2.31% | 1 | 6.25% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 8 | 1.68% | 1 | 6.25% |
hideaki yoshifuji | hideaki yoshifuji | 3 | 0.63% | 1 | 6.25% |
| Total | 476 | 100.00% | 16 | 100.00% |
static int neightbl_fill_parms(struct sk_buff *skb, struct neigh_parms *parms)
{
struct nlattr *nest;
nest = nla_nest_start(skb, NDTA_PARMS);
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,
NEIGH_VAR(parms, QUEUE_LEN_BYTES)) ||
/* approximative value for deprecated QUEUE_LEN (in packets) */
nla_put_u32(skb, NDTPA_QUEUE_LEN,
NEIGH_VAR(parms, QUEUE_LEN_BYTES) / SKB_TRUESIZE(ETH_FRAME_LEN)) ||
nla_put_u32(skb, NDTPA_PROXY_QLEN, NEIGH_VAR(parms, PROXY_QLEN)) ||
nla_put_u32(skb, NDTPA_APP_PROBES, NEIGH_VAR(parms, APP_PROBES)) ||
nla_put_u32(skb, NDTPA_UCAST_PROBES,
NEIGH_VAR(parms, UCAST_PROBES)) ||
nla_put_u32(skb, NDTPA_MCAST_PROBES,
NEIGH_VAR(parms, MCAST_PROBES)) ||
nla_put_u32(skb, NDTPA_MCAST_REPROBES,
NEIGH_VAR(parms, MCAST_REPROBES)) ||
nla_put_msecs(skb, NDTPA_REACHABLE_TIME, parms->reachable_time,
NDTPA_PAD) ||
nla_put_msecs(skb, NDTPA_BASE_REACHABLE_TIME,
NEIGH_VAR(parms, BASE_REACHABLE_TIME), NDTPA_PAD) ||
nla_put_msecs(skb, NDTPA_GC_STALETIME,
NEIGH_VAR(parms, GC_STALETIME), NDTPA_PAD) ||
nla_put_msecs(skb, NDTPA_DELAY_PROBE_TIME,
NEIGH_VAR(parms, DELAY_PROBE_TIME), NDTPA_PAD) ||
nla_put_msecs(skb, NDTPA_RETRANS_TIME,
NEIGH_VAR(parms, RETRANS_TIME), NDTPA_PAD) ||
nla_put_msecs(skb, NDTPA_ANYCAST_DELAY,
NEIGH_VAR(parms, ANYCAST_DELAY), NDTPA_PAD) ||
nla_put_msecs(skb, NDTPA_PROXY_DELAY,
NEIGH_VAR(parms, PROXY_DELAY), NDTPA_PAD) ||
nla_put_msecs(skb, NDTPA_LOCKTIME,
NEIGH_VAR(parms, LOCKTIME), NDTPA_PAD))
goto nla_put_failure;
return nla_nest_end(skb, nest);
nla_put_failure:
nla_nest_cancel(skb, nest);
return -EMSGSIZE;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 182 | 55.32% | 4 | 40.00% |
jiri pirko | jiri pirko | 65 | 19.76% | 1 | 10.00% |
david s. miller | david s. miller | 38 | 11.55% | 1 | 10.00% |
nicolas dichtel | nicolas dichtel | 16 | 4.86% | 1 | 10.00% |
yoshifuji hideaki | yoshifuji hideaki | 14 | 4.26% | 1 | 10.00% |
eric dumazet | eric dumazet | 13 | 3.95% | 1 | 10.00% |
shan wei | shan wei | 1 | 0.30% | 1 | 10.00% |
| Total | 329 | 100.00% | 10 | 100.00% |
static int neightbl_fill_info(struct sk_buff *skb, struct neigh_table *tbl,
u32 pid, u32 seq, int type, int flags)
{
struct nlmsghdr *nlh;
struct ndtmsg *ndtmsg;
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndtmsg), flags);
if (nlh == NULL)
return -EMSGSIZE;
ndtmsg = nlmsg_data(nlh);
read_lock_bh(&tbl->lock);
ndtmsg->ndtm_family = tbl->family;
ndtmsg->ndtm_pad1 = 0;
ndtmsg->ndtm_pad2 = 0;
if (nla_put_string(skb, NDTA_NAME, tbl->id) ||
nla_put_msecs(skb, NDTA_GC_INTERVAL, tbl->gc_interval, NDTA_PAD) ||
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;
unsigned int rand_delta = now - tbl->last_rand;
struct neigh_hash_table *nht;
struct ndt_config ndc = {
.ndtc_key_len = tbl->key_len,
.ndtc_entry_size = tbl->entry_size,
.ndtc_entries = atomic_read(&tbl->entries),
.ndtc_last_flush = jiffies_to_msecs(flush_delta),
.ndtc_last_rand = jiffies_to_msecs(rand_delta),
.ndtc_proxy_qlen = tbl->proxy_queue.qlen,
};
rcu_read_lock_bh();
nht = rcu_dereference_bh(tbl->nht);
ndc.ndtc_hash_rnd = nht->hash_rnd[0];
ndc.ndtc_hash_mask = ((1 << nht->hash_shift) - 1);
rcu_read_unlock_bh();
if (nla_put(skb, NDTA_CONFIG, sizeof(ndc), &ndc))
goto nla_put_failure;
}
{
int cpu;
struct ndt_stats ndst;
memset(&ndst, 0, sizeof(ndst));
for_each_possible_cpu(cpu) {
struct neigh_statistics *st;
st = per_cpu_ptr(tbl->stats, cpu);
ndst.ndts_allocs += st->allocs;
ndst.ndts_destroys += st->destroys;
ndst.ndts_hash_grows += st->hash_grows;
ndst.ndts_res_failed += st->res_failed;
ndst.ndts_lookups += st->lookups;
ndst.ndts_hits += st->hits;
ndst.ndts_rcv_probes_mcast += st->rcv_probes_mcast;
ndst.ndts_rcv_probes_ucast += st->rcv_probes_ucast;
ndst.ndts_periodic_gc_runs += st->periodic_gc_runs;
ndst.ndts_forced_gc_runs += st->forced_gc_runs;
ndst.ndts_table_fulls += st->table_fulls;
}
if (nla_put_64bit(skb, NDTA_STATS, sizeof(ndst), &ndst,
NDTA_PAD))
goto nla_put_failure;
}
BUG_ON(tbl->parms.dev);
if (neightbl_fill_parms(skb, &tbl->parms) < 0)
goto nla_put_failure;
read_unlock_bh(&tbl->lock);
nlmsg_end(skb, nlh);
return 0;
nla_put_failure:
read_unlock_bh(&tbl->lock);
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 426 | 79.48% | 4 | 25.00% |
david s. miller | david s. miller | 40 | 7.46% | 3 | 18.75% |
eric dumazet | eric dumazet | 33 | 6.16% | 1 | 6.25% |
patrick mchardy | patrick mchardy | 17 | 3.17% | 2 | 12.50% |
rick jones | rick jones | 8 | 1.49% | 1 | 6.25% |
nicolas dichtel | nicolas dichtel | 5 | 0.93% | 2 | 12.50% |
johannes berg | johannes berg | 3 | 0.56% | 1 | 6.25% |
john hawkes | john hawkes | 3 | 0.56% | 1 | 6.25% |
kamezawa hiroyuki | kamezawa hiroyuki | 1 | 0.19% | 1 | 6.25% |
| Total | 536 | 100.00% | 16 | 100.00% |
static int neightbl_fill_param_info(struct sk_buff *skb,
struct neigh_table *tbl,
struct neigh_parms *parms,
u32 pid, u32 seq, int type,
unsigned int flags)
{
struct ndtmsg *ndtmsg;
struct nlmsghdr *nlh;
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndtmsg), flags);
if (nlh == NULL)
return -EMSGSIZE;
ndtmsg = nlmsg_data(nlh);
read_lock_bh(&tbl->lock);
ndtmsg->ndtm_family = tbl->family;
ndtmsg->ndtm_pad1 = 0;
ndtmsg->ndtm_pad2 = 0;
if (nla_put_string(skb, NDTA_NAME, tbl->id) < 0 ||
neightbl_fill_parms(skb, parms) < 0)
goto errout;
read_unlock_bh(&tbl->lock);
nlmsg_end(skb, nlh);
return 0;
errout:
read_unlock_bh(&tbl->lock);
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 156 | 88.64% | 4 | 57.14% |
patrick mchardy | patrick mchardy | 17 | 9.66% | 2 | 28.57% |
johannes berg | johannes berg | 3 | 1.70% | 1 | 14.29% |
| Total | 176 | 100.00% | 7 | 100.00% |
static const struct nla_policy nl_neightbl_policy[NDTA_MAX+1] = {
[NDTA_NAME] = { .type = NLA_STRING },
[NDTA_THRESH1] = { .type = NLA_U32 },
[NDTA_THRESH2] = { .type = NLA_U32 },
[NDTA_THRESH3] = { .type = NLA_U32 },
[NDTA_GC_INTERVAL] = { .type = NLA_U64 },
[NDTA_PARMS] = { .type = NLA_NESTED },
};
static const struct nla_policy nl_ntbl_parm_policy[NDTPA_MAX+1] = {
[NDTPA_IFINDEX] = { .type = NLA_U32 },
[NDTPA_QUEUE_LEN] = { .type = NLA_U32 },
[NDTPA_PROXY_QLEN] = { .type = NLA_U32 },
[NDTPA_APP_PROBES] = { .type = NLA_U32 },
[NDTPA_UCAST_PROBES] = { .type = NLA_U32 },
[NDTPA_MCAST_PROBES] = { .type = NLA_U32 },
[NDTPA_MCAST_REPROBES] = { .type = NLA_U32 },
[NDTPA_BASE_REACHABLE_TIME] = { .type = NLA_U64 },
[NDTPA_GC_STALETIME] = { .type = NLA_U64 },
[NDTPA_DELAY_PROBE_TIME] = { .type = NLA_U64 },
[NDTPA_RETRANS_TIME] = { .type = NLA_U64 },
[NDTPA_ANYCAST_DELAY] = { .type = NLA_U64 },
[NDTPA_PROXY_DELAY] = { .type = NLA_U64 },
[NDTPA_LOCKTIME] = { .type = NLA_U64 },
};
static int neightbl_set(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct net *net = sock_net(skb->sk);
struct neigh_table *tbl;
struct ndtmsg *ndtmsg;
struct nlattr *tb[NDTA_MAX+1];
bool found = false;
int err, tidx;
err = nlmsg_parse(nlh, sizeof(*ndtmsg), tb, NDTA_MAX,
nl_neightbl_policy);
if (err < 0)
goto errout;
if (tb[NDTA_NAME] == NULL) {
err = -EINVAL;
goto errout;
}
ndtmsg = nlmsg_data(nlh);
for (tidx = 0; tidx < NEIGH_NR_TABLES; tidx++) {
tbl = neigh_tables[tidx];
if (!tbl)
continue;
if (ndtmsg->ndtm_family && tbl->family != ndtmsg->ndtm_family)
continue;
if (nla_strcmp(tb[NDTA_NAME], tbl->id) == 0) {
found = true;
break;
}
}
if (!found)
return -ENOENT;
/*
* We acquire tbl->lock to be nice to the periodic timers and
* make sure they always see a consistent set of values.
*/
write_lock_bh(&tbl->lock);
if (tb[NDTA_PARMS]) {
struct nlattr *tbp[NDTPA_MAX+1];
struct neigh_parms *p;
int i, ifindex = 0;
err = nla_parse_nested(tbp, NDTPA_MAX, tb[NDTA_PARMS],
nl_ntbl_parm_policy);
if (err < 0)
goto errout_tbl_lock;
if (tbp[NDTPA_IFINDEX])
ifindex = nla_get_u32(tbp[NDTPA_IFINDEX]);
p = lookup_neigh_parms(tbl, net, ifindex);
if (p == NULL) {
err = -ENOENT;
goto errout_tbl_lock;
}
for (i = 1; i <= NDTPA_MAX; i++) {
if (tbp[i] == NULL)
continue;
switch (i) {
case NDTPA_QUEUE_LEN:
NEIGH_VAR_SET(p, QUEUE_LEN_BYTES,
nla_get_u32(tbp[i]) *
SKB_TRUESIZE(ETH_FRAME_LEN));
break;
case NDTPA_QUEUE_LENBYTES:
NEIGH_VAR_SET(p, QUEUE_LEN_BYTES,
nla_get_u32(tbp[i]));
break;
case NDTPA_PROXY_QLEN:
NEIGH_VAR_SET(p, PROXY_QLEN,
nla_get_u32(tbp[i]));
break;
case NDTPA_APP_PROBES:
NEIGH_VAR_SET(p, APP_PROBES,
nla_get_u32(tbp[i]));
break;
case NDTPA_UCAST_PROBES:
NEIGH_VAR_SET(p, UCAST_PROBES,
nla_get_u32(tbp[i]));
break;
case NDTPA_MCAST_PROBES:
NEIGH_VAR_SET(p, MCAST_PROBES,
nla_get_u32(tbp[i]));
break;
case NDTPA_MCAST_REPROBES:
NEIGH_VAR_SET(p, MCAST_REPROBES,
nla_get_u32(tbp[i]));
break;
case NDTPA_BASE_REACHABLE_TIME:
NEIGH_VAR_SET(p, BASE_REACHABLE_TIME,
nla_get_msecs(tbp[i]));
/* update reachable_time as well, otherwise, the change will
* only be effective after the next time neigh_periodic_work
* decides to recompute it (can be multiple minutes)
*/
p->reachable_time =
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
break;
case NDTPA_GC_STALETIME:
NEIGH_VAR_SET(p, GC_STALETIME,
nla_get_msecs(tbp[i]));
break;
case NDTPA_DELAY_PROBE_TIME:
NEIGH_VAR_SET(p, DELAY_PROBE_TIME,
nla_get_msecs(tbp[i]));
break;
case NDTPA_RETRANS_TIME:
NEIGH_VAR_SET(p, RETRANS_TIME,
nla_get_msecs(tbp[i]));
break;
case NDTPA_ANYCAST_DELAY:
NEIGH_VAR_SET(p, ANYCAST_DELAY,
nla_get_msecs(tbp[i]));
break;
case NDTPA_PROXY_DELAY:
NEIGH_VAR_SET(p, PROXY_DELAY,
nla_get_msecs(tbp[i]));
break;
case NDTPA_LOCKTIME:
NEIGH_VAR_SET(p, LOCKTIME,
nla_get_msecs(tbp[i]));
break;
}
}
}
err = -ENOENT;
if ((tb[NDTA_THRESH1] || tb[NDTA_THRESH2] ||
tb[NDTA_THRESH3] || tb[NDTA_GC_INTERVAL]) &&
!net_eq(net, &init_net))
goto errout_tbl_lock;
if (tb[NDTA_THRESH1])
tbl->gc_thresh1 = nla_get_u32(tb[NDTA_THRESH1]);
if (tb[NDTA_THRESH2])
tbl->gc_thresh2 = nla_get_u32(tb[NDTA_THRESH2]);
if (tb[NDTA_THRESH3])
tbl->gc_thresh3 = nla_get_u32(tb[NDTA_THRESH3]);
if (tb[NDTA_GC_INTERVAL])
tbl->gc_interval = nla_get_msecs(tb[NDTA_GC_INTERVAL]);
err = 0;
errout_tbl_lock:
write_unlock_bh(&tbl->lock);
errout:
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 526 | 70.23% | 3 | 21.43% |
jiri pirko | jiri pirko | 78 | 10.41% | 1 | 7.14% |
gao feng | gao feng | 41 | 5.47% | 1 | 7.14% |
americo wang | americo wang | 36 | 4.81% | 1 | 7.14% |
yoshifuji hideaki | yoshifuji hideaki | 19 | 2.54% | 1 | 7.14% |
eric dumazet | eric dumazet | 18 | 2.40% | 1 | 7.14% |
jean-francois remy | jean-francois remy | 15 | 2.00% | 1 | 7.14% |
denis v. lunev | denis v. lunev | 9 | 1.20% | 1 | 7.14% |
hideaki yoshifuji | hideaki yoshifuji | 4 | 0.53% | 2 | 14.29% |
eric w. biederman | eric w. biederman | 2 | 0.27% | 1 | 7.14% |
tobias klauser | tobias klauser | 1 | 0.13% | 1 | 7.14% |
| Total | 749 | 100.00% | 14 | 100.00% |
static int neightbl_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
{
struct net *net = sock_net(skb->sk);
int family, tidx, nidx = 0;
int tbl_skip = cb->args[0];
int neigh_skip = cb->args[1];
struct neigh_table *tbl;
family = ((struct rtgenmsg *) nlmsg_data(cb->nlh))->rtgen_family;
for (tidx = 0; tidx < NEIGH_NR_TABLES; tidx++) {
struct neigh_parms *p;
tbl = neigh_tables[tidx];
if (!tbl)
continue;
if (tidx < tbl_skip || (family && tbl->family != family))
continue;
if (neightbl_fill_info(skb, tbl, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq, RTM_NEWNEIGHTBL,
NLM_F_MULTI) < 0)
break;
nidx = 0;
p = list_next_entry(&tbl->parms, list);
list_for_each_entry_from(p, &tbl->parms_list, list) {
if (!net_eq(neigh_parms_net(p), net))
continue;
if (nidx < neigh_skip)
goto next;
if (neightbl_fill_param_info(skb, tbl, p,
NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
RTM_NEWNEIGHTBL,
NLM_F_MULTI) < 0)
goto out;
next:
nidx++;
}
neigh_skip = 0;
}
out:
cb->args[0] = tidx;
cb->args[1] = nidx;
return skb->len;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 179 | 64.16% | 3 | 17.65% |
pre-git | pre-git | 27 | 9.68% | 3 | 17.65% |
americo wang | americo wang | 16 | 5.73% | 1 | 5.88% |
nicolas dichtel | nicolas dichtel | 16 | 5.73% | 1 | 5.88% |
hideaki yoshifuji | hideaki yoshifuji | 12 | 4.30% | 3 | 17.65% |
denis v. lunev | denis v. lunev | 9 | 3.23% | 1 | 5.88% |
gautam kachroo | gautam kachroo | 8 | 2.87% | 1 | 5.88% |
eric w. biederman | eric w. biederman | 7 | 2.51% | 2 | 11.76% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 3 | 1.08% | 1 | 5.88% |
david s. miller | david s. miller | 2 | 0.72% | 1 | 5.88% |
| Total | 279 | 100.00% | 17 | 100.00% |
static int neigh_fill_info(struct sk_buff *skb, struct neighbour *neigh,
u32 pid, u32 seq, int type, unsigned int flags)
{
unsigned long now = jiffies;
struct nda_cacheinfo ci;
struct nlmsghdr *nlh;
struct ndmsg *ndm;
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndm), flags);
if (nlh == NULL)
return -EMSGSIZE;
ndm = nlmsg_data(nlh);
ndm->ndm_family = neigh->ops->family;
ndm->ndm_pad1 = 0;
ndm->ndm_pad2 = 0;
ndm->ndm_flags = neigh->flags;
ndm->ndm_type = neigh->type;
ndm->ndm_ifindex = neigh->dev->ifindex;
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;
if (neigh->nud_state & NUD_VALID) {
char haddr[MAX_ADDR_LEN];
neigh_ha_snapshot(haddr, neigh, neigh->dev);
if (nla_put(skb, NDA_LLADDR, neigh->dev->addr_len, haddr) < 0) {
read_unlock_bh(&neigh->lock);
goto nla_put_failure;
}
}
ci.ndm_used = jiffies_to_clock_t(now - neigh->used);
ci.ndm_confirmed = jiffies_to_clock_t(now - neigh->confirmed);
ci.ndm_updated = jiffies_to_clock_t(now - neigh->updated);
ci.ndm_refcnt = atomic_read(&neigh->refcnt) - 1;
read_unlock_bh(&neigh->lock);
if (nla_put_u32(skb, NDA_PROBES, atomic_read(&neigh->probes)) ||
nla_put(skb, NDA_CACHEINFO, sizeof(ci), &ci))
goto nla_put_failure;
nlmsg_end(skb, nlh);
return 0;
nla_put_failure:
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 189 | 53.85% | 4 | 28.57% |
thomas graf | thomas graf | 85 | 24.22% | 2 | 14.29% |
eric dumazet | eric dumazet | 23 | 6.55% | 1 | 7.14% |
patrick mchardy | patrick mchardy | 17 | 4.84% | 2 | 14.29% |
david s. miller | david s. miller | 16 | 4.56% | 1 | 7.14% |
stephen hemminger | stephen hemminger | 9 | 2.56% | 1 | 7.14% |
jamal hadi salim | jamal hadi salim | 6 | 1.71% | 1 | 7.14% |
johannes berg | johannes berg | 3 | 0.85% | 1 | 7.14% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 3 | 0.85% | 1 | 7.14% |
| Total | 351 | 100.00% | 14 | 100.00% |
static int pneigh_fill_info(struct sk_buff *skb, struct pneigh_entry *pn,
u32 pid, u32 seq, int type, unsigned int flags,
struct neigh_table *tbl)
{
struct nlmsghdr *nlh;
struct ndmsg *ndm;
nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndm), flags);
if (nlh == NULL)
return -EMSGSIZE;
ndm = nlmsg_data(nlh);
ndm->ndm_family = tbl->family;
ndm->ndm_pad1 = 0;
ndm->ndm_pad2 = 0;
ndm->ndm_flags = pn->flags | NTF_PROXY;
ndm->ndm_type = RTN_UNICAST;
ndm->ndm_ifindex = pn->dev ? pn->dev->ifindex : 0;
ndm->ndm_state = NUD_NONE;
if (nla_put(skb, NDA_DST, tbl->key_len, pn->key))
goto nla_put_failure;
nlmsg_end(skb, nlh);
return 0;
nla_put_failure:
nlmsg_cancel(skb, nlh);
return -EMSGSIZE;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
tony zelenoff | tony zelenoff | 166 | 90.71% | 1 | 20.00% |
david s. miller | david s. miller | 7 | 3.83% | 1 | 20.00% |
konstantin khlebnikov | konstantin khlebnikov | 6 | 3.28% | 1 | 20.00% |
johannes berg | johannes berg | 3 | 1.64% | 1 | 20.00% |
jun zhao | jun zhao | 1 | 0.55% | 1 | 20.00% |
| Total | 183 | 100.00% | 5 | 100.00% |
static void neigh_update_notify(struct neighbour *neigh)
{
call_netevent_notifiers(NETEVENT_NEIGH_UPDATE, neigh);
__neigh_notify(neigh, RTM_NEWNEIGH, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 27 | 100.00% | 1 | 100.00% |
| Total | 27 | 100.00% | 1 | 100.00% |
static bool neigh_master_filtered(struct net_device *dev, int master_idx)
{
struct net_device *master;
if (!master_idx)
return false;
master = netdev_master_upper_dev_get(dev);
if (!master || master->ifindex != master_idx)
return true;
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david ahern | david ahern | 51 | 100.00% | 1 | 100.00% |
| Total | 51 | 100.00% | 1 | 100.00% |
static bool neigh_ifindex_filtered(struct net_device *dev, int filter_idx)
{
if (filter_idx && dev->ifindex != filter_idx)
return true;
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david ahern | david ahern | 30 | 100.00% | 1 | 100.00% |
| Total | 30 | 100.00% | 1 | 100.00% |
static int neigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
struct netlink_callback *cb)
{
struct net *net = sock_net(skb->sk);
const struct nlmsghdr *nlh = cb->nlh;
struct nlattr *tb[NDA_MAX + 1];
struct neighbour *n;
int rc, h, s_h = cb->args[1];
int idx, s_idx = idx = cb->args[2];
struct neigh_hash_table *nht;
int filter_master_idx = 0, filter_idx = 0;
unsigned int flags = NLM_F_MULTI;
int err;
err = nlmsg_parse(nlh, sizeof(struct ndmsg), tb, NDA_MAX, NULL);
if (!err) {
if (tb[NDA_IFINDEX])
filter_idx = nla_get_u32(tb[NDA_IFINDEX]);
if (tb[NDA_MASTER])
filter_master_idx = nla_get_u32(tb[NDA_MASTER]);
if (filter_idx || filter_master_idx)
flags |= NLM_F_DUMP_FILTERED;
}
rcu_read_lock_bh();
nht = rcu_dereference_bh(tbl->nht);
for (h = s_h; h < (1 << nht->hash_shift); h++) {
if (h > s_h)
s_idx = 0;
for (n = rcu_dereference_bh(nht->hash_buckets[h]), idx = 0;
n != NULL;
n = rcu_dereference_bh(n->next)) {
if (!net_eq(dev_net(n->dev), net))
continue;
if (neigh_ifindex_filtered(n->dev, filter_idx))
continue;
if (neigh_master_filtered(n->dev, filter_master_idx))
continue;
if (idx < s_idx)
goto next;
if (neigh_fill_info(skb, n, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
RTM_NEWNEIGH,
flags) < 0) {
rc = -1;
goto out;
}
next:
idx++;
}
}
rc = skb->len;
out:
rcu_read_unlock_bh();
cb->args[1] = h;
cb->args[2] = idx;
return rc;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 146 | 38.32% | 3 | 15.00% |
david ahern | david ahern | 133 | 34.91% | 2 | 10.00% |
eric dumazet | eric dumazet | 31 | 8.14% | 3 | 15.00% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 23 | 6.04% | 1 | 5.00% |
eric w. biederman | eric w. biederman | 18 | 4.72% | 2 | 10.00% |
gautam kachroo | gautam kachroo | 9 | 2.36% | 1 | 5.00% |
david s. miller | david s. miller | 8 | 2.10% | 3 | 15.00% |
hideaki yoshifuji | hideaki yoshifuji | 6 | 1.57% | 2 | 10.00% |
octavian purdila | octavian purdila | 5 | 1.31% | 1 | 5.00% |
julian anastasov | julian anastasov | 1 | 0.26% | 1 | 5.00% |
jamal hadi salim | jamal hadi salim | 1 | 0.26% | 1 | 5.00% |
| Total | 381 | 100.00% | 20 | 100.00% |
static int pneigh_dump_table(struct neigh_table *tbl, struct sk_buff *skb,
struct netlink_callback *cb)
{
struct pneigh_entry *n;
struct net *net = sock_net(skb->sk);
int rc, h, s_h = cb->args[3];
int idx, s_idx = idx = cb->args[4];
read_lock_bh(&tbl->lock);
for (h = s_h; h <= PNEIGH_HASHMASK; h++) {
if (h > s_h)
s_idx = 0;
for (n = tbl->phash_buckets[h], idx = 0; n; n = n->next) {
if (pneigh_net(n) != net)
continue;
if (idx < s_idx)
goto next;
if (pneigh_fill_info(skb, n, NETLINK_CB(cb->skb).portid,
cb->nlh->nlmsg_seq,
RTM_NEWNEIGH,
NLM_F_MULTI, tbl) < 0) {
read_unlock_bh(&tbl->lock);
rc = -1;
goto out;
}
next:
idx++;
}
}
read_unlock_bh(&tbl->lock);
rc = skb->len;
out:
cb->args[3] = h;
cb->args[4] = idx;
return rc;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
tony zelenoff | tony zelenoff | 231 | 98.30% | 1 | 20.00% |
david s. miller | david s. miller | 1 | 0.43% | 1 | 20.00% |
konstantin khlebnikov | konstantin khlebnikov | 1 | 0.43% | 1 | 20.00% |
eric dumazet | eric dumazet | 1 | 0.43% | 1 | 20.00% |
eric w. biederman | eric w. biederman | 1 | 0.43% | 1 | 20.00% |
| Total | 235 | 100.00% | 5 | 100.00% |
static int neigh_dump_info(struct sk_buff *skb, struct netlink_callback *cb)
{
struct neigh_table *tbl;
int t, family, s_t;
int proxy = 0;
int err;
family = ((struct rtgenmsg *) nlmsg_data(cb->nlh))->rtgen_family;
/* check for full ndmsg structure presence, family member is
* the same for both structures
*/
if (nlmsg_len(cb->nlh) >= sizeof(struct ndmsg) &&
((struct ndmsg *) nlmsg_data(cb->nlh))->ndm_flags == NTF_PROXY)
proxy = 1;
s_t = cb->args[0];
for (t = 0; t < NEIGH_NR_TABLES; t++) {
tbl = neigh_tables[t];
if (!tbl)
continue;
if (t < s_t || (family && tbl->family != family))
continue;
if (t > s_t)
memset(&cb->args[1], 0, sizeof(cb->args) -
sizeof(cb->args[0]));
if (proxy)
err = pneigh_dump_table(tbl, skb, cb);
else
err = neigh_dump_table(tbl, skb, cb);
if (err < 0)
break;
}
cb->args[0] = t;
return skb->len;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 131 | 56.96% | 2 | 25.00% |
tony zelenoff | tony zelenoff | 63 | 27.39% | 1 | 12.50% |
americo wang | americo wang | 16 | 6.96% | 1 | 12.50% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 11 | 4.78% | 1 | 12.50% |
eric dumazet | eric dumazet | 7 | 3.04% | 1 | 12.50% |
thomas graf | thomas graf | 2 | 0.87% | 2 | 25.00% |
| Total | 230 | 100.00% | 8 | 100.00% |
void neigh_for_each(struct neigh_table *tbl, void (*cb)(struct neighbour *, void *), void *cookie)
{
int chain;
struct neigh_hash_table *nht;
rcu_read_lock_bh();
nht = rcu_dereference_bh(tbl->nht);
read_lock(&tbl->lock); /* avoid resizes */
for (chain = 0; chain < (1 << nht->hash_shift); chain++) {
struct neighbour *n;
for (n = rcu_dereference_bh(nht->hash_buckets[chain]);
n != NULL;
n = rcu_dereference_bh(n->next))
cb(n, cookie);
}
read_unlock(&tbl->lock);
rcu_read_unlock_bh();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 95 | 74.22% | 3 | 60.00% |
eric dumazet | eric dumazet | 33 | 25.78% | 2 | 40.00% |
| Total | 128 | 100.00% | 5 | 100.00% |
EXPORT_SYMBOL(neigh_for_each);
/* The tbl->lock must be held as a writer and BH disabled. */
void __neigh_for_each_release(struct neigh_table *tbl,
int (*cb)(struct neighbour *))
{
int chain;
struct neigh_hash_table *nht;
nht = rcu_dereference_protected(tbl->nht,
lockdep_is_held(&tbl->lock));
for (chain = 0; chain < (1 << nht->hash_shift); chain++) {
struct neighbour *n;
struct neighbour __rcu **np;
np = &nht->hash_buckets[chain];
while ((n = rcu_dereference_protected(*np,
lockdep_is_held(&tbl->lock))) != NULL) {
int release;
write_lock(&n->lock);
release = cb(n);
if (release) {
rcu_assign_pointer(*np,
rcu_dereference_protected(n->next,
lockdep_is_held(&tbl->lock)));
n->dead = 1;
} else
np = &n->next;
write_unlock(&n->lock);
if (release)
neigh_cleanup_and_release(n);
}
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 129 | 68.25% | 3 | 42.86% |
eric dumazet | eric dumazet | 54 | 28.57% | 2 | 28.57% |
alexey kuznetsov | alexey kuznetsov | 5 | 2.65% | 1 | 14.29% |
thomas graf | thomas graf | 1 | 0.53% | 1 | 14.29% |
| Total | 189 | 100.00% | 7 | 100.00% |
EXPORT_SYMBOL(__neigh_for_each_release);
int neigh_xmit(int index, struct net_device *dev,
const void *addr, struct sk_buff *skb)
{
int err = -EAFNOSUPPORT;
if (likely(index < NEIGH_NR_TABLES)) {
struct neigh_table *tbl;
struct neighbour *neigh;
tbl = neigh_tables[index];
if (!tbl)
goto out;
rcu_read_lock_bh();
neigh = __neigh_lookup_noref(tbl, addr, dev);
if (!neigh)
neigh = __neigh_create(tbl, addr, dev, false);
err = PTR_ERR(neigh);
if (IS_ERR(neigh)) {
rcu_read_unlock_bh();
goto out_kfree_skb;
}
err = neigh->output(neigh, skb);
rcu_read_unlock_bh();
}
else if (index == NEIGH_LINK_TABLE) {
err = dev_hard_header(skb, dev, ntohs(skb->protocol),
addr, NULL, skb->len);
if (err < 0)
goto out_kfree_skb;
err = dev_queue_xmit(skb);
}
out:
return err;
out_kfree_skb:
kfree_skb(skb);
goto out;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
eric w. biederman | eric w. biederman | 186 | 94.42% | 2 | 66.67% |
david barroso | david barroso | 11 | 5.58% | 1 | 33.33% |
| Total | 197 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(neigh_xmit);
#ifdef CONFIG_PROC_FS
static struct neighbour *neigh_get_first(struct seq_file *seq)
{
struct neigh_seq_state *state = seq->private;
struct net *net = seq_file_net(seq);
struct neigh_hash_table *nht = state->nht;
struct neighbour *n = NULL;
int bucket = state->bucket;
state->flags &= ~NEIGH_SEQ_IS_PNEIGH;
for (bucket = 0; bucket < (1 << nht->hash_shift); bucket++) {
n = rcu_dereference_bh(nht->hash_buckets[bucket]);
while (n) {
if (!net_eq(dev_net(n->dev), net))
goto next;
if (state->neigh_sub_iter) {
loff_t fakep = 0;
void *v;
v = state->neigh_sub_iter(state, n, &fakep);
if (!v)
goto next;
}
if (!(state->flags & NEIGH_SEQ_SKIP_NOARP))
break;
if (n->nud_state & ~NUD_NOARP)
break;
next:
n = rcu_dereference_bh(n->next);
}
if (n)
break;
}
state->bucket = bucket;
return n;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 166 | 80.98% | 3 | 33.33% |
eric w. biederman | eric w. biederman | 16 | 7.80% | 1 | 11.11% |
hideaki yoshifuji | hideaki yoshifuji | 12 | 5.85% | 3 | 33.33% |
eric dumazet | eric dumazet | 11 | 5.37% | 2 | 22.22% |
| Total | 205 | 100.00% | 9 | 100.00% |
static struct neighbour *neigh_get_next(struct seq_file *seq,
struct neighbour *n,
loff_t *pos)
{
struct neigh_seq_state *state = seq->private;
struct net *net = seq_file_net(seq);
struct neigh_hash_table *nht = state->nht;
if (state->neigh_sub_iter) {
void *v = state->neigh_sub_iter(state, n, pos);
if (v)
return n;
}
n = rcu_dereference_bh(n->next);
while (1) {
while (n) {
if (!net_eq(dev_net(n->dev), net))
goto next;
if (state->neigh_sub_iter) {
void *v = state->neigh_sub_iter(state, n, pos);
if (v)
return n;
goto next;
}
if (!(state->flags & NEIGH_SEQ_SKIP_NOARP))
break;
if (n->nud_state & ~NUD_NOARP)
break;
next:
n = rcu_dereference_bh(n->next);
}
if (n)
break;
if (++state->bucket >= (1 << nht->hash_shift))
break;
n = rcu_dereference_bh(nht->hash_buckets[state->bucket]);
}
if (n && pos)
--(*pos);
return n;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 193 | 82.13% | 3 | 33.33% |
eric w. biederman | eric w. biederman | 16 | 6.81% | 1 | 11.11% |
eric dumazet | eric dumazet | 14 | 5.96% | 2 | 22.22% |
hideaki yoshifuji | hideaki yoshifuji | 12 | 5.11% | 3 | 33.33% |
| Total | 235 | 100.00% | 9 | 100.00% |
static struct neighbour *neigh_get_idx(struct seq_file *seq, loff_t *pos)
{
struct neighbour *n = neigh_get_first(seq);
if (n) {
--(*pos);
while (*pos) {
n = neigh_get_next(seq, n, pos);
if (!n)
break;
}
}
return *pos ? NULL : n;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 65 | 91.55% | 1 | 50.00% |
chris larson | chris larson | 6 | 8.45% | 1 | 50.00% |
| Total | 71 | 100.00% | 2 | 100.00% |
static struct pneigh_entry *pneigh_get_first(struct seq_file *seq)
{
struct neigh_seq_state *state = seq->private;
struct net *net = seq_file_net(seq);
struct neigh_table *tbl = state->tbl;
struct pneigh_entry *pn = NULL;
int bucket = state->bucket;
state->flags |= NEIGH_SEQ_IS_PNEIGH;
for (bucket = 0; bucket <= PNEIGH_HASHMASK; bucket++) {
pn = tbl->phash_buckets[bucket];
while (pn && !net_eq(pneigh_net(pn), net))
pn = pn->next;
if (pn)
break;
}
state->bucket = bucket;
return pn;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 89 | 74.17% | 1 | 20.00% |
eric w. biederman | eric w. biederman | 19 | 15.83% | 1 | 20.00% |
hideaki yoshifuji | hideaki yoshifuji | 12 | 10.00% | 3 | 60.00% |
| Total | 120 | 100.00% | 5 | 100.00% |
static struct pneigh_entry *pneigh_get_next(struct seq_file *seq,
struct pneigh_entry *pn,
loff_t *pos)
{
struct neigh_seq_state *state = seq->private;
struct net *net = seq_file_net(seq);
struct neigh_table *tbl = state->tbl;
do {
pn = pn->next;
} while (pn && !net_eq(pneigh_net(pn), net));
while (!pn) {
if (++state->bucket > PNEIGH_HASHMASK)
break;
pn = tbl->phash_buckets[state->bucket];
while (pn && !net_eq(pneigh_net(pn), net))
pn = pn->next;
if (pn)
break;
}
if (pn && pos)
--(*pos);
return pn;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 94 | 65.28% | 1 | 16.67% |
eric w. biederman | eric w. biederman | 19 | 13.19% | 1 | 16.67% |
jorge boncompte | jorge boncompte | 19 | 13.19% | 1 | 16.67% |
hideaki yoshifuji | hideaki yoshifuji | 12 | 8.33% | 3 | 50.00% |
| Total | 144 | 100.00% | 6 | 100.00% |
static struct pneigh_entry *pneigh_get_idx(struct seq_file *seq, loff_t *pos)
{
struct pneigh_entry *pn = pneigh_get_first(seq);
if (pn) {
--(*pos);
while (*pos) {
pn = pneigh_get_next(seq, pn, pos);
if (!pn)
break;
}
}
return *pos ? NULL : pn;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 65 | 91.55% | 1 | 50.00% |
chris larson | chris larson | 6 | 8.45% | 1 | 50.00% |
| Total | 71 | 100.00% | 2 | 100.00% |
static void *neigh_get_idx_any(struct seq_file *seq, loff_t *pos)
{
struct neigh_seq_state *state = seq->private;
void *rc;
loff_t idxpos = *pos;
rc = neigh_get_idx(seq, &idxpos);
if (!rc && !(state->flags & NEIGH_SEQ_NEIGH_ONLY))
rc = pneigh_get_idx(seq, &idxpos);
return rc;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 62 | 86.11% | 1 | 50.00% |
chris larson | chris larson | 10 | 13.89% | 1 | 50.00% |
| Total | 72 | 100.00% | 2 | 100.00% |
void *neigh_seq_start(struct seq_file *seq, loff_t *pos, struct neigh_table *tbl, unsigned int neigh_seq_flags)
__acquires
(rcu_bh)
{
struct neigh_seq_state *state = seq->private;
state->tbl = tbl;
state->bucket = 0;
state->flags = (neigh_seq_flags & ~NEIGH_SEQ_IS_PNEIGH);
rcu_read_lock_bh();
state->nht = rcu_dereference_bh(tbl->nht);
return *pos ? neigh_get_idx_any(seq, pos) : SEQ_START_TOKEN;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 68 | 78.16% | 1 | 25.00% |
eric dumazet | eric dumazet | 18 | 20.69% | 2 | 50.00% |
chris larson | chris larson | 1 | 1.15% | 1 | 25.00% |
| Total | 87 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(neigh_seq_start);
void *neigh_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct neigh_seq_state *state;
void *rc;
if (v == SEQ_START_TOKEN) {
rc = neigh_get_first(seq);
goto out;
}
state = seq->private;
if (!(state->flags & NEIGH_SEQ_IS_PNEIGH)) {
rc = neigh_get_next(seq, v, NULL);
if (rc)
goto out;
if (!(state->flags & NEIGH_SEQ_NEIGH_ONLY))
rc = pneigh_get_first(seq);
} else {
BUG_ON(state->flags & NEIGH_SEQ_NEIGH_ONLY);
rc = pneigh_get_next(seq, v, NULL);
}
out:
++(*pos);
return rc;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 134 | 99.26% | 1 | 50.00% |
chris larson | chris larson | 1 | 0.74% | 1 | 50.00% |
| Total | 135 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(neigh_seq_next);
void neigh_seq_stop(struct seq_file *seq, void *v)
__releases
(rcu_bh)
{
rcu_read_unlock_bh();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 14 | 66.67% | 1 | 33.33% |
eric dumazet | eric dumazet | 7 | 33.33% | 2 | 66.67% |
| Total | 21 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(neigh_seq_stop);
/* statistics via seq_file */
static void *neigh_stat_seq_start(struct seq_file *seq, loff_t *pos)
{
struct neigh_table *tbl = seq->private;
int cpu;
if (*pos == 0)
return SEQ_START_TOKEN;
for (cpu = *pos-1; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
return per_cpu_ptr(tbl->stats, cpu);
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 82 | 96.47% | 1 | 33.33% |
alexey dobriyan | alexey dobriyan | 2 | 2.35% | 1 | 33.33% |
rusty russell | rusty russell | 1 | 1.18% | 1 | 33.33% |
| Total | 85 | 100.00% | 3 | 100.00% |
static void *neigh_stat_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
struct neigh_table *tbl = seq->private;
int cpu;
for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
if (!cpu_possible(cpu))
continue;
*pos = cpu+1;
return per_cpu_ptr(tbl->stats, cpu);
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 74 | 96.10% | 1 | 33.33% |
alexey dobriyan | alexey dobriyan | 2 | 2.60% | 1 | 33.33% |
rusty russell | rusty russell | 1 | 1.30% | 1 | 33.33% |
| Total | 77 | 100.00% | 3 | 100.00% |
static void neigh_stat_seq_stop(struct seq_file *seq, void *v)
{
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 14 | 100.00% | 1 | 100.00% |
| Total | 14 | 100.00% | 1 | 100.00% |
static int neigh_stat_seq_show(struct seq_file *seq, void *v)
{
struct neigh_table *tbl = seq->private;
struct neigh_statistics *st = v;
if (v == SEQ_START_TOKEN) {
seq_printf(seq, "entries allocs destroys hash_grows lookups hits res_failed rcv_probes_mcast rcv_probes_ucast periodic_gc_runs forced_gc_runs unresolved_discards table_fulls\n");
return 0;
}
seq_printf(seq, "%08x %08lx %08lx %08lx %08lx %08lx %08lx "
"%08lx %08lx %08lx %08lx %08lx %08lx\n",
atomic_read(&tbl->entries),
st->allocs,
st->destroys,
st->hash_grows,
st->lookups,
st->hits,
st->res_failed,
st->rcv_probes_mcast,
st->rcv_probes_ucast,
st->periodic_gc_runs,
st->forced_gc_runs,
st->unres_discards,
st->table_fulls
);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 100 | 86.21% | 1 | 20.00% |
rick jones | rick jones | 6 | 5.17% | 1 | 20.00% |
herbert xu | herbert xu | 4 | 3.45% | 1 | 20.00% |
neil horman | neil horman | 4 | 3.45% | 1 | 20.00% |
alexey dobriyan | alexey dobriyan | 2 | 1.72% | 1 | 20.00% |
| Total | 116 | 100.00% | 5 | 100.00% |
static const struct seq_operations neigh_stat_seq_ops = {
.start = neigh_stat_seq_start,
.next = neigh_stat_seq_next,
.stop = neigh_stat_seq_stop,
.show = neigh_stat_seq_show,
};
static int neigh_stat_seq_open(struct inode *inode, struct file *file)
{
int ret = seq_open(file, &neigh_stat_seq_ops);
if (!ret) {
struct seq_file *sf = file->private_data;
sf->private = PDE_DATA(inode);
}
return ret;
}Contributors
| Person | Tokens | Prop | Commits | CommitProp |
david s. miller | david s. miller | 54 | 98.18% | 1 | 50.00% |
al viro | al viro | 1 | 1.82% | 1 | 50.00% |
| Total | 55 | 100.00% | 2 | 100.00% |
;
static const struct file_operations neigh_stat_seq_fops = {
.owner = THIS_MODULE,
.open = neigh_stat_seq_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
#endif /* CONFIG_PROC_FS */
static inline size_t neigh_nlmsg_size(void)
{
return NLMSG_ALIGN(sizeof(struct ndmsg))
+ nla_total_size(MAX_ADDR_LEN) /* NDA_DST */
+ nla_total_size(MAX_ADDR_LEN) /* NDA_LLADDR */
+ nla_total_size(sizeof(struct nda_cacheinfo))
+ nla_total_size(4); /* NDA_PROBES */
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 46 | 100.00% | 1 | 100.00% |
| Total | 46 | 100.00% | 1 | 100.00% |
static void __neigh_notify(struct neighbour *n, int type, int flags)
{
struct net *net = dev_net(n->dev);
struct sk_buff *skb;
int err = -ENOBUFS;
skb = nlmsg_new(neigh_nlmsg_size(), GFP_ATOMIC);
if (skb == NULL)
goto errout;
err = neigh_fill_info(skb, n, 0, 0, type, flags);
if (err < 0) {
/* -EMSGSIZE implies BUG in neigh_nlmsg_size() */
WARN_ON(err == -EMSGSIZE);
kfree_skb(skb);
goto errout;
}
rtnl_notify(skb, net, 0, RTNLGRP_NEIGH, NULL, GFP_ATOMIC);
return;
errout:
if (err < 0)
rtnl_set_sk_err(net, RTNLGRP_NEIGH, err);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 52 | 38.81% | 3 | 25.00% |
pre-git | pre-git | 41 | 30.60% | 1 | 8.33% |
patrick mchardy | patrick mchardy | 21 | 15.67% | 2 | 16.67% |
eric w. biederman | eric w. biederman | 11 | 8.21% | 1 | 8.33% |
hideaki yoshifuji | hideaki yoshifuji | 3 | 2.24% | 1 | 8.33% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 2 | 1.49% | 1 | 8.33% |
denis v. lunev | denis v. lunev | 2 | 1.49% | 1 | 8.33% |
pablo neira ayuso | pablo neira ayuso | 1 | 0.75% | 1 | 8.33% |
jamal hadi salim | jamal hadi salim | 1 | 0.75% | 1 | 8.33% |
| Total | 134 | 100.00% | 12 | 100.00% |
void neigh_app_ns(struct neighbour *n)
{
__neigh_notify(n, RTM_GETNEIGH, NLM_F_REQUEST);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 13 | 68.42% | 1 | 33.33% |
thomas graf | thomas graf | 5 | 26.32% | 1 | 33.33% |
jamal hadi salim | jamal hadi salim | 1 | 5.26% | 1 | 33.33% |
| Total | 19 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(neigh_app_ns);
#ifdef CONFIG_SYSCTL
static int zero;
static int int_max = INT_MAX;
static int unres_qlen_max = INT_MAX / SKB_TRUESIZE(ETH_FRAME_LEN);
static int proc_unres_qlen(struct ctl_table *ctl, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int size, ret;
struct ctl_table tmp = *ctl;
tmp.extra1 = &zero;
tmp.extra2 = &unres_qlen_max;
tmp.data = &size;
size = *(int *)ctl->data / SKB_TRUESIZE(ETH_FRAME_LEN);
ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
if (write && !ret)
*(int *)ctl->data = size * SKB_TRUESIZE(ETH_FRAME_LEN);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
eric dumazet | eric dumazet | 100 | 84.75% | 1 | 33.33% |
shan wei | shan wei | 16 | 13.56% | 1 | 33.33% |
joe perches | joe perches | 2 | 1.69% | 1 | 33.33% |
| Total | 118 | 100.00% | 3 | 100.00% |
static struct neigh_parms *neigh_get_dev_parms_rcu(struct net_device *dev,
int family)
{
switch (family) {
case AF_INET:
return __in_dev_arp_parms_get_rcu(dev);
case AF_INET6:
return __in6_dev_nd_parms_get_rcu(dev);
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 43 | 100.00% | 2 | 100.00% |
| Total | 43 | 100.00% | 2 | 100.00% |
static void neigh_copy_dflt_parms(struct net *net, struct neigh_parms *p,
int index)
{
struct net_device *dev;
int family = neigh_parms_family(p);
rcu_read_lock();
for_each_netdev_rcu(net, dev) {
struct neigh_parms *dst_p =
neigh_get_dev_parms_rcu(dev, family);
if (dst_p && !test_bit(index, dst_p->data_state))
dst_p->data[index] = p->data[index];
}
rcu_read_unlock();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 86 | 100.00% | 1 | 100.00% |
| Total | 86 | 100.00% | 1 | 100.00% |
static void neigh_proc_update(struct ctl_table *ctl, int write)
{
struct net_device *dev = ctl->extra1;
struct neigh_parms *p = ctl->extra2;
struct net *net = neigh_parms_net(p);
int index = (int *) ctl->data - p->data;
if (!write)
return;
set_bit(index, p->data_state);
if (!dev) /* NULL dev means this is default value */
neigh_copy_dflt_parms(net, p, index);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 87 | 100.00% | 2 | 100.00% |
| Total | 87 | 100.00% | 2 | 100.00% |
static int neigh_proc_dointvec_zero_intmax(struct ctl_table *ctl, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
struct ctl_table tmp = *ctl;
int ret;
tmp.extra1 = &zero;
tmp.extra2 = &int_max;
ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
neigh_proc_update(ctl, write);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 75 | 97.40% | 2 | 66.67% |
eric dumazet | eric dumazet | 2 | 2.60% | 1 | 33.33% |
| Total | 77 | 100.00% | 3 | 100.00% |
int neigh_proc_dointvec(struct ctl_table *ctl, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
neigh_proc_update(ctl, write);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 52 | 100.00% | 2 | 100.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(neigh_proc_dointvec);
int neigh_proc_dointvec_jiffies(struct ctl_table *ctl, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
int ret = proc_dointvec_jiffies(ctl, write, buffer, lenp, ppos);
neigh_proc_update(ctl, write);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 52 | 100.00% | 2 | 100.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(neigh_proc_dointvec_jiffies);
static int neigh_proc_dointvec_userhz_jiffies(struct ctl_table *ctl, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
int ret = proc_dointvec_userhz_jiffies(ctl, write, buffer, lenp, ppos);
neigh_proc_update(ctl, write);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 53 | 100.00% | 2 | 100.00% |
| Total | 53 | 100.00% | 2 | 100.00% |
int neigh_proc_dointvec_ms_jiffies(struct ctl_table *ctl, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
int ret = proc_dointvec_ms_jiffies(ctl, write, buffer, lenp, ppos);
neigh_proc_update(ctl, write);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 52 | 100.00% | 2 | 100.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(neigh_proc_dointvec_ms_jiffies);
static int neigh_proc_dointvec_unres_qlen(struct ctl_table *ctl, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
int ret = proc_unres_qlen(ctl, write, buffer, lenp, ppos);
neigh_proc_update(ctl, write);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jiri pirko | jiri pirko | 53 | 100.00% | 2 | 100.00% |
| Total | 53 | 100.00% | 2 | 100.00% |
static int neigh_proc_base_reachable_time(struct ctl_table *ctl, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos)
{
struct neigh_parms *p = ctl->extra2;
int ret;
if (strcmp(ctl->procname, "base_reachable_time") == 0)
ret = neigh_proc_dointvec_jiffies(ctl, write, buffer, lenp, ppos);
else if (strcmp(ctl->procname, "base_reachable_time_ms") == 0)
ret = neigh_proc_dointvec_ms_jiffies(ctl, write, buffer, lenp, ppos);
else
ret = -1;
if (write && ret == 0) {
/* update reachable_time as well, otherwise, the change will
* only be effective after the next time neigh_periodic_work
* decides to recompute it
*/
p->reachable_time =
neigh_rand_reach_time(NEIGH_VAR(p, BASE_REACHABLE_TIME));
}
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
jean-francois remy | jean-francois remy | 130 | 100.00% | 1 | 100.00% |
| Total | 130 | 100.00% | 1 | 100.00% |
#define NEIGH_PARMS_DATA_OFFSET(index) \
(&((struct neigh_parms *) 0)->data[index])
#define NEIGH_SYSCTL_ENTRY(attr, data_attr, name, mval, proc) \
[NEIGH_VAR_ ## attr] = { \
.procname = name, \
.data = NEIGH_PARMS_DATA_OFFSET(NEIGH_VAR_ ## data_attr), \
.maxlen = sizeof(int), \
.mode = mval, \
.proc_handler = proc, \
}
#define NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(attr, name) \
NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, neigh_proc_dointvec_zero_intmax)
#define NEIGH_SYSCTL_JIFFIES_ENTRY(attr, name) \
NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, neigh_proc_dointvec_jiffies)
#define NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(attr, name) \
NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, neigh_proc_dointvec_userhz_jiffies)
#define NEIGH_SYSCTL_MS_JIFFIES_ENTRY(attr, name) \
NEIGH_SYSCTL_ENTRY(attr, attr, name, 0644, neigh_proc_dointvec_ms_jiffies)
#define NEIGH_SYSCTL_MS_JIFFIES_REUSED_ENTRY(attr, data_attr, name) \
NEIGH_SYSCTL_ENTRY(attr, data_attr, name, 0644, neigh_proc_dointvec_ms_jiffies)
#define NEIGH_SYSCTL_UNRES_QLEN_REUSED_ENTRY(attr, data_attr, name) \
NEIGH_SYSCTL_ENTRY(attr, data_attr, name, 0644, neigh_proc_dointvec_unres_qlen)
static struct neigh_sysctl_table {
struct ctl_table_header *sysctl_header;
struct ctl_table neigh_vars[NEIGH_VAR_MAX + 1];
}
neigh_sysctl_template __read_mostly = {
.neigh_vars = {
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(MCAST_PROBES, "mcast_solicit"),
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(UCAST_PROBES, "ucast_solicit"),
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(APP_PROBES, "app_solicit"),
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(MCAST_REPROBES, "mcast_resolicit"),
NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(RETRANS_TIME, "retrans_time"),
NEIGH_SYSCTL_JIFFIES_ENTRY(BASE_REACHABLE_TIME, "base_reachable_time"),
NEIGH_SYSCTL_JIFFIES_ENTRY(DELAY_PROBE_TIME, "delay_first_probe_time"),
NEIGH_SYSCTL_JIFFIES_ENTRY(GC_STALETIME, "gc_stale_time"),
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(QUEUE_LEN_BYTES, "unres_qlen_bytes"),
NEIGH_SYSCTL_ZERO_INTMAX_ENTRY(PROXY_QLEN, "proxy_qlen"),
NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(ANYCAST_DELAY, "anycast_delay"),
NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(PROXY_DELAY, "proxy_delay"),
NEIGH_SYSCTL_USERHZ_JIFFIES_ENTRY(LOCKTIME, "locktime"),
NEIGH_SYSCTL_UNRES_QLEN_REUSED_ENTRY(QUEUE_LEN, QUEUE_LEN_BYTES, "unres_qlen"),
NEIGH_SYSCTL_MS_JIFFIES_REUSED_ENTRY(RETRANS_TIME_MS, RETRANS_TIME, "retrans_time_ms"),
NEIGH_SYSCTL_MS_JIFFIES_REUSED_ENTRY(BASE_REACHABLE_TIME_MS, BASE_REACHABLE_TIME, "base_reachable_time_ms"),
[NEIGH_VAR_GC_INTERVAL] = {
.procname = "gc_interval",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_jiffies,
},
[NEIGH_VAR_GC_THRESH1] = {
.procname = "gc_thresh1",
.maxlen = sizeof(int),
.mode = 0644,
.extra1 = &zero,
.extra2 = &int_max,
.proc_handler = proc_dointvec_minmax,
},
[NEIGH_VAR_GC_THRESH2] = {
.procname = "gc_thresh2",
.maxlen = sizeof(int),
.mode = 0644,
.extra1 = &zero,
.extra2 = &int_max,
.proc_handler = proc_dointvec_minmax,
},
[NEIGH_VAR_GC_THRESH3] = {
.procname = "gc_thresh3",
.maxlen = sizeof(int),
.mode = 0644,
.extra1 = &zero,
.extra2 = &int_max,
.proc_handler = proc_dointvec_minmax,
},
{},
},
};
int neigh_sysctl_register(struct net_device *dev, struct neigh_parms *p,
proc_handler *handler)
{
int i;
struct neigh_sysctl_table *t;
const char *dev_name_source;
char neigh_path[ sizeof("net//neigh/") + IFNAMSIZ + IFNAMSIZ ];
char *p_name;
t = kmemdup(&neigh_sysctl_template, sizeof(*t), GFP_KERNEL);
if (!t)
goto err;
for (i = 0; i < NEIGH_VAR_GC_INTERVAL; i++) {
t->neigh_vars[i].data += (long) p;
t->neigh_vars[i].extra1 = dev;
t->neigh_vars[i].extra2 = p;
}
if (dev) {
dev_name_source = dev->name;
/* Terminate the table early */
memset(&t->neigh_vars[NEIGH_VAR_GC_INTERVAL], 0,
sizeof(t->neigh_vars[NEIGH_VAR_GC_INTERVAL]));
} else {
struct neigh_table *tbl = p->tbl;
dev_name_source = "default";
t->neigh_vars[NEIGH_VAR_GC_INTERVAL].data = &tbl->gc_interval;
t->neigh_vars[NEIGH_VAR_GC_THRESH1].data = &tbl->gc_thresh1;
t->neigh_vars[NEIGH_VAR_GC_THRESH2].data = &tbl->gc_thresh2;
t->neigh_vars[NEIGH_VAR_GC_THRESH3].data = &tbl->gc_thresh3;
}
if (handler) {
/* RetransTime */
t->neigh_vars[NEIGH_VAR_RETRANS_TIME].proc_handler = handler;
/* ReachableTime */
t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME].proc_handler = handler;
/* RetransTime (in milliseconds)*/
t->neigh_vars[NEIGH_VAR_RETRANS_TIME_MS].proc_handler = handler;
/* ReachableTime (in milliseconds) */
t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].proc_handler = handler;
} else {
/* Those handlers will update p->reachable_time after
* base_reachable_time(_ms) is set to ensure the new timer starts being
* applied after the next neighbour update instead of waiting for
* neigh_periodic_work to update its value (can be multiple minutes)
* So any handler that replaces them should do this as well
*/
/* ReachableTime */
t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME].proc_handler =
neigh_proc_base_reachable_time;
/* ReachableTime (in milliseconds) */
t->neigh_vars[NEIGH_VAR_BASE_REACHABLE_TIME_MS].proc_handler =
neigh_proc_base_reachable_time;
}
/* Don't export sysctls to unprivileged users */
if (neigh_parms_net(p)->user_ns != &init_user_ns)
t->neigh_vars[0].procname = NULL;
switch (neigh_parms_family(p)) {
case AF_INET:
p_name = "ipv4";
break;
case AF_INET6:
p_name = "ipv6";
break;
default:
BUG();
}
snprintf(neigh_path, sizeof(neigh_path), "net/%s/neigh/%s",
p_name, dev_name_source);
t->sysctl_header =
register_net_sysctl(neigh_parms_net(p), neigh_path, t->neigh_vars);
if (!t->sysctl_header)
goto free;
p->sysctl_table = t;
return 0;
free:
kfree(t);
err:
return -ENOBUFS;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 97 | 22.40% | 4 | 17.39% |
jiri pirko | jiri pirko | 77 | 17.78% | 5 | 21.74% |
eric w. biederman | eric w. biederman | 69 | 15.94% | 3 | 13.04% |
hideaki yoshifuji | hideaki yoshifuji | 66 | 15.24% | 2 | 8.70% |
pavel emelianov | pavel emelianov | 29 | 6.70% | 2 | 8.70% |
jean-francois remy | jean-francois remy | 28 | 6.47% | 1 | 4.35% |
mathias krause | mathias krause | 25 | 5.77% | 1 | 4.35% |
dan aloni | dan aloni | 24 | 5.54% | 1 | 4.35% |
eric dumazet | eric dumazet | 10 | 2.31% | 1 | 4.35% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 3 | 0.69% | 1 | 4.35% |
shirley ma | shirley ma | 3 | 0.69% | 1 | 4.35% |
denis v. lunev | denis v. lunev | 2 | 0.46% | 1 | 4.35% |
| Total | 433 | 100.00% | 23 | 100.00% |
EXPORT_SYMBOL(neigh_sysctl_register);
void neigh_sysctl_unregister(struct neigh_parms *p)
{
if (p->sysctl_table) {
struct neigh_sysctl_table *t = p->sysctl_table;
p->sysctl_table = NULL;
unregister_net_sysctl_table(t->sysctl_header);
kfree(t);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 44 | 97.78% | 2 | 66.67% |
eric w. biederman | eric w. biederman | 1 | 2.22% | 1 | 33.33% |
| Total | 45 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(neigh_sysctl_unregister);
#endif /* CONFIG_SYSCTL */
static int __init neigh_init(void)
{
rtnl_register(PF_UNSPEC, RTM_NEWNEIGH, neigh_add, NULL, NULL);
rtnl_register(PF_UNSPEC, RTM_DELNEIGH, neigh_delete, NULL, NULL);
rtnl_register(PF_UNSPEC, RTM_GETNEIGH, NULL, neigh_dump_info, NULL);
rtnl_register(PF_UNSPEC, RTM_GETNEIGHTBL, NULL, neightbl_dump_info,
NULL);
rtnl_register(PF_UNSPEC, RTM_SETNEIGHTBL, neightbl_set, NULL, NULL);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
thomas graf | thomas graf | 67 | 87.01% | 1 | 50.00% |
greg rose | greg rose | 10 | 12.99% | 1 | 50.00% |
| Total | 77 | 100.00% | 2 | 100.00% |
subsys_initcall(neigh_init);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
pre-git | pre-git | 4356 | 26.35% | 18 | 7.14% |
david s. miller | david s. miller | 2704 | 16.36% | 35 | 13.89% |
thomas graf | thomas graf | 2422 | 14.65% | 17 | 6.75% |
eric dumazet | eric dumazet | 1339 | 8.10% | 18 | 7.14% |
jiri pirko | jiri pirko | 1088 | 6.58% | 7 | 2.78% |
hideaki yoshifuji | hideaki yoshifuji | 1035 | 6.26% | 23 | 9.13% |
eric w. biederman | eric w. biederman | 550 | 3.33% | 13 | 5.16% |
tony zelenoff | tony zelenoff | 460 | 2.78% | 1 | 0.40% |
arnaldo carvalho de melo | arnaldo carvalho de melo | 238 | 1.44% | 4 | 1.59% |
herbert xu | herbert xu | 236 | 1.43% | 5 | 1.98% |
americo wang | americo wang | 218 | 1.32% | 2 | 0.79% |
david ahern | david ahern | 214 | 1.29% | 2 | 0.79% |
pavel emelianov | pavel emelianov | 200 | 1.21% | 8 | 3.17% |
jean-francois remy | jean-francois remy | 173 | 1.05% | 1 | 0.40% |
timo teras | timo teras | 131 | 0.79% | 2 | 0.79% |
nicolas dichtel | nicolas dichtel | 88 | 0.53% | 3 | 1.19% |
patrick mchardy | patrick mchardy | 88 | 0.53% | 5 | 1.98% |
joe perches | joe perches | 71 | 0.43% | 3 | 1.19% |
jiri benc | jiri benc | 67 | 0.41% | 1 | 0.40% |
denis v. lunev | denis v. lunev | 66 | 0.40% | 6 | 2.38% |
yoshifuji hideaki | yoshifuji hideaki | 62 | 0.38% | 1 | 0.40% |
julian anastasov | julian anastasov | 55 | 0.33% | 2 | 0.79% |
gao feng | gao feng | 53 | 0.32% | 3 | 1.19% |
francesco fusco | francesco fusco | 47 | 0.28% | 1 | 0.40% |
stephen hemminger | stephen hemminger | 38 | 0.23% | 7 | 2.78% |
rick jones | rick jones | 32 | 0.19% | 1 | 0.40% |
veaceslav falico | veaceslav falico | 30 | 0.18% | 1 | 0.40% |
mathias krause | mathias krause | 25 | 0.15% | 1 | 0.40% |
dan aloni | dan aloni | 24 | 0.15% | 1 | 0.40% |
chris larson | chris larson | 24 | 0.15% | 2 | 0.79% |
ville nuorvala | ville nuorvala | 24 | 0.15% | 1 | 0.40% |
duan jiong | duan jiong | 22 | 0.13% | 3 | 1.19% |
alexey dobriyan | alexey dobriyan | 20 | 0.12% | 3 | 1.19% |
erik kline | erik kline | 20 | 0.12% | 1 | 0.40% |
rusty russell | rusty russell | 20 | 0.12% | 2 | 0.79% |
jorge boncompte | jorge boncompte | 19 | 0.11% | 1 | 0.40% |
andrew morton | andrew morton | 19 | 0.11% | 3 | 1.19% |
tom tucker | tom tucker | 19 | 0.11% | 1 | 0.40% |
michel machado | michel machado | 17 | 0.10% | 1 | 0.40% |
shan wei | shan wei | 17 | 0.10% | 1 | 0.40% |
gautam kachroo | gautam kachroo | 17 | 0.10% | 1 | 0.40% |
kirill korotaev | kirill korotaev | 13 | 0.08% | 1 | 0.40% |
doug kehn | doug kehn | 13 | 0.08% | 1 | 0.40% |
neil horman | neil horman | 13 | 0.08% | 1 | 0.40% |
ramesh nagappa | ramesh nagappa | 12 | 0.07% | 1 | 0.40% |
johannes berg | johannes berg | 12 | 0.07% | 1 | 0.40% |
david barroso | david barroso | 11 | 0.07% | 1 | 0.40% |
greg rose | greg rose | 10 | 0.06% | 1 | 0.40% |
jamal hadi salim | jamal hadi salim | 9 | 0.05% | 1 | 0.40% |
arjan van de ven | arjan van de ven | 8 | 0.05% | 2 | 0.79% |
konstantin khlebnikov | konstantin khlebnikov | 7 | 0.04% | 1 | 0.40% |
krishna kumar | krishna kumar | 6 | 0.04% | 1 | 0.40% |
li rongqing | li rongqing | 6 | 0.04% | 1 | 0.40% |
viresh kumar | viresh kumar | 6 | 0.04% | 1 | 0.40% |
octavian purdila | octavian purdila | 5 | 0.03% | 1 | 0.40% |
tejun heo | tejun heo | 5 | 0.03% | 3 | 1.19% |
amos waterland | amos waterland | 5 | 0.03% | 1 | 0.40% |
alexey kuznetsov | alexey kuznetsov | 5 | 0.03% | 1 | 0.40% |
harald welte | harald welte | 4 | 0.02% | 1 | 0.40% |
bob gilligan | bob gilligan | 4 | 0.02% | 1 | 0.40% |
vignesh babu | vignesh babu | 3 | 0.02% | 1 | 0.40% |
john hawkes | john hawkes | 3 | 0.02% | 1 | 0.40% |
paulo marques | paulo marques | 3 | 0.02% | 1 | 0.40% |
shirley ma | shirley ma | 3 | 0.02% | 1 | 0.40% |
wang chen | wang chen | 3 | 0.02% | 1 | 0.40% |
aruna-hewapathirane | aruna-hewapathirane | 2 | 0.01% | 1 | 0.40% |
tobias klauser | tobias klauser | 2 | 0.01% | 1 | 0.40% |
hiroaki shimoda | hiroaki shimoda | 1 | 0.01% | 1 | 0.40% |
kamezawa hiroyuki | kamezawa hiroyuki | 1 | 0.01% | 1 | 0.40% |
junwei zhang | junwei zhang | 1 | 0.01% | 1 | 0.40% |
linus torvalds | linus torvalds | 1 | 0.01% | 1 | 0.40% |
jun zhao | jun zhao | 1 | 0.01% | 1 | 0.40% |
al viro | al viro | 1 | 0.01% | 1 | 0.40% |
brian haley | brian haley | 1 | 0.01% | 1 | 0.40% |
pablo neira ayuso | pablo neira ayuso | 1 | 0.01% | 1 | 0.40% |
hannes frederic sowa | hannes frederic sowa | 1 | 0.01% | 1 | 0.40% |
alan cox | alan cox | 1 | 0.01% | 1 | 0.40% |
tommi virtanen | tommi virtanen | 1 | 0.01% | 1 | 0.40% |
| Total | 16532 | 100.00% | 252 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.