#include <net/netfilter/nf_conntrack_l3proto.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_expect.h>
-
-#ifdef CONFIG_NF_CT_ACCT
-static unsigned int
-seq_print_counters(struct seq_file *s,
- const struct ip_conntrack_counter *counter)
-{
- return seq_printf(s, "packets=%llu bytes=%llu ",
- (unsigned long long)counter->packets,
- (unsigned long long)counter->bytes);
-}
-#else
-#define seq_print_counters(x, y) 0
-#endif
+#include <net/netfilter/nf_conntrack_acct.h>
struct ct_iter_state {
unsigned int bucket;
static struct hlist_node *ct_get_first(struct seq_file *seq)
{
struct ct_iter_state *st = seq->private;
+ struct hlist_node *n;
for (st->bucket = 0;
st->bucket < nf_conntrack_htable_size;
st->bucket++) {
- if (!hlist_empty(&nf_conntrack_hash[st->bucket]))
- return nf_conntrack_hash[st->bucket].first;
+ n = rcu_dereference(nf_conntrack_hash[st->bucket].first);
+ if (n)
+ return n;
}
return NULL;
}
{
struct ct_iter_state *st = seq->private;
- head = head->next;
+ head = rcu_dereference(head->next);
while (head == NULL) {
if (++st->bucket >= nf_conntrack_htable_size)
return NULL;
- head = nf_conntrack_hash[st->bucket].first;
+ head = rcu_dereference(nf_conntrack_hash[st->bucket].first);
}
return head;
}
}
static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
+ __acquires(RCU)
{
- read_lock_bh(&nf_conntrack_lock);
+ rcu_read_lock();
return ct_get_idx(seq, *pos);
}
}
static void ct_seq_stop(struct seq_file *s, void *v)
+ __releases(RCU)
{
- read_unlock_bh(&nf_conntrack_lock);
+ rcu_read_unlock();
}
static int ct_seq_show(struct seq_file *s, void *v)
{
const struct nf_conntrack_tuple_hash *hash = v;
const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
- struct nf_conntrack_l3proto *l3proto;
- struct nf_conntrack_l4proto *l4proto;
+ const struct nf_conntrack_l3proto *l3proto;
+ const struct nf_conntrack_l4proto *l4proto;
NF_CT_ASSERT(ct);
/* we only want to print DIR_ORIGINAL */
if (NF_CT_DIRECTION(hash))
return 0;
- if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num != AF_INET)
+ if (nf_ct_l3num(ct) != AF_INET)
return 0;
- l3proto = __nf_ct_l3proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
- .tuple.src.l3num);
+ l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
NF_CT_ASSERT(l3proto);
- l4proto = __nf_ct_l4proto_find(ct->tuplehash[IP_CT_DIR_ORIGINAL]
- .tuple.src.l3num,
- ct->tuplehash[IP_CT_DIR_ORIGINAL]
- .tuple.dst.protonum);
+ l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
NF_CT_ASSERT(l4proto);
if (seq_printf(s, "%-8s %u %ld ",
- l4proto->name,
- ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
+ l4proto->name, nf_ct_protonum(ct),
timer_pending(&ct->timeout)
? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
return -ENOSPC;
l3proto, l4proto))
return -ENOSPC;
- if (seq_print_counters(s, &ct->counters[IP_CT_DIR_ORIGINAL]))
+ if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
return -ENOSPC;
if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
l3proto, l4proto))
return -ENOSPC;
- if (seq_print_counters(s, &ct->counters[IP_CT_DIR_REPLY]))
+ if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
return -ENOSPC;
if (test_bit(IPS_ASSURED_BIT, &ct->status))
static struct hlist_node *ct_expect_get_first(struct seq_file *seq)
{
struct ct_expect_iter_state *st = seq->private;
+ struct hlist_node *n;
for (st->bucket = 0; st->bucket < nf_ct_expect_hsize; st->bucket++) {
- if (!hlist_empty(&nf_ct_expect_hash[st->bucket]))
- return nf_ct_expect_hash[st->bucket].first;
+ n = rcu_dereference(nf_ct_expect_hash[st->bucket].first);
+ if (n)
+ return n;
}
return NULL;
}
{
struct ct_expect_iter_state *st = seq->private;
- head = head->next;
+ head = rcu_dereference(head->next);
while (head == NULL) {
if (++st->bucket >= nf_ct_expect_hsize)
return NULL;
- head = nf_ct_expect_hash[st->bucket].first;
+ head = rcu_dereference(nf_ct_expect_hash[st->bucket].first);
}
return head;
}
}
static void *exp_seq_start(struct seq_file *seq, loff_t *pos)
+ __acquires(RCU)
{
- read_lock_bh(&nf_conntrack_lock);
+ rcu_read_lock();
return ct_expect_get_idx(seq, *pos);
}
}
static void exp_seq_stop(struct seq_file *seq, void *v)
+ __releases(RCU)
{
- read_unlock_bh(&nf_conntrack_lock);
+ rcu_read_unlock();
}
static int exp_seq_show(struct seq_file *s, void *v)
{
struct nf_conntrack_expect *exp;
- struct hlist_node *n = v;
+ const struct hlist_node *n = v;
exp = hlist_entry(n, struct nf_conntrack_expect, hnode);
static int ct_cpu_seq_show(struct seq_file *seq, void *v)
{
unsigned int nr_conntracks = atomic_read(&nf_conntrack_count);
- struct ip_conntrack_stat *st = v;
+ const struct ip_conntrack_stat *st = v;
if (v == SEQ_START_TOKEN) {
seq_printf(seq, "entries searched found new invalid ignore delete delete_list insert insert_failed drop early_drop icmp_error expect_new expect_create expect_delete\n");
.open = ct_cpu_seq_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release_private,
+ .release = seq_release,
};
int __init nf_conntrack_ipv4_compat_init(void)
if (!proc_exp)
goto err2;
- proc_stat = create_proc_entry("ip_conntrack", S_IRUGO, init_net.proc_net_stat);
+ proc_stat = proc_create("ip_conntrack", S_IRUGO,
+ init_net.proc_net_stat, &ct_cpu_seq_fops);
if (!proc_stat)
goto err3;
-
- proc_stat->proc_fops = &ct_cpu_seq_fops;
- proc_stat->owner = THIS_MODULE;
-
return 0;
err3:
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