#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_expect.h>
#include <net/netfilter/nf_conntrack_helper.h>
+#include <net/netfilter/nf_conntrack_acct.h>
MODULE_LICENSE("GPL");
#ifdef CONFIG_PROC_FS
int
print_tuple(struct seq_file *s, const struct nf_conntrack_tuple *tuple,
- struct nf_conntrack_l3proto *l3proto,
- struct nf_conntrack_l4proto *l4proto)
+ const struct nf_conntrack_l3proto *l3proto,
+ const struct nf_conntrack_l4proto *l4proto)
{
return l3proto->print_tuple(s, tuple) || l4proto->print_tuple(s, tuple);
}
EXPORT_SYMBOL_GPL(print_tuple);
-#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
-
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(init_net.ct.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(init_net.ct.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();
}
/* return 0 on success, 1 in case of error */
static int ct_seq_show(struct seq_file *s, void *v)
{
const struct nf_conntrack_tuple_hash *hash = v;
- const struct nf_conn *conntrack = nf_ct_tuplehash_to_ctrack(hash);
- struct nf_conntrack_l3proto *l3proto;
- struct nf_conntrack_l4proto *l4proto;
+ const struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
+ const struct nf_conntrack_l3proto *l3proto;
+ const struct nf_conntrack_l4proto *l4proto;
- NF_CT_ASSERT(conntrack);
+ NF_CT_ASSERT(ct);
/* we only want to print DIR_ORIGINAL */
if (NF_CT_DIRECTION(hash))
return 0;
- l3proto = __nf_ct_l3proto_find(conntrack->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(conntrack->tuplehash[IP_CT_DIR_ORIGINAL]
- .tuple.src.l3num,
- conntrack->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 %-8s %u %ld ",
- l3proto->name,
- conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.l3num,
- l4proto->name,
- conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum,
- timer_pending(&conntrack->timeout)
- ? (long)(conntrack->timeout.expires - jiffies)/HZ : 0) != 0)
+ l3proto->name, nf_ct_l3num(ct),
+ l4proto->name, nf_ct_protonum(ct),
+ timer_pending(&ct->timeout)
+ ? (long)(ct->timeout.expires - jiffies)/HZ : 0) != 0)
return -ENOSPC;
- if (l3proto->print_conntrack(s, conntrack))
+ if (l4proto->print_conntrack && l4proto->print_conntrack(s, ct))
return -ENOSPC;
- if (l4proto->print_conntrack(s, conntrack))
- return -ENOSPC;
-
- if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
+ if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
l3proto, l4proto))
return -ENOSPC;
- if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_ORIGINAL]))
+ if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
return -ENOSPC;
- if (!(test_bit(IPS_SEEN_REPLY_BIT, &conntrack->status)))
+ if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
if (seq_printf(s, "[UNREPLIED] "))
return -ENOSPC;
- if (print_tuple(s, &conntrack->tuplehash[IP_CT_DIR_REPLY].tuple,
+ if (print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
l3proto, l4proto))
return -ENOSPC;
- if (seq_print_counters(s, &conntrack->counters[IP_CT_DIR_REPLY]))
+ if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
return -ENOSPC;
- if (test_bit(IPS_ASSURED_BIT, &conntrack->status))
+ if (test_bit(IPS_ASSURED_BIT, &ct->status))
if (seq_printf(s, "[ASSURED] "))
return -ENOSPC;
#if defined(CONFIG_NF_CONNTRACK_MARK)
- if (seq_printf(s, "mark=%u ", conntrack->mark))
+ if (seq_printf(s, "mark=%u ", ct->mark))
return -ENOSPC;
#endif
#ifdef CONFIG_NF_CONNTRACK_SECMARK
- if (seq_printf(s, "secmark=%u ", conntrack->secmark))
+ if (seq_printf(s, "secmark=%u ", ct->secmark))
return -ENOSPC;
#endif
- if (seq_printf(s, "use=%u\n", atomic_read(&conntrack->ct_general.use)))
+ if (seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use)))
return -ENOSPC;
return 0;
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;
+ unsigned int nr_conntracks = atomic_read(&init_net.ct.count);
+ 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,
};
+
+static int nf_conntrack_standalone_init_proc(void)
+{
+ struct proc_dir_entry *pde;
+
+ pde = proc_net_fops_create(&init_net, "nf_conntrack", 0440, &ct_file_ops);
+ if (!pde)
+ goto out_nf_conntrack;
+
+ pde = proc_create("nf_conntrack", S_IRUGO, init_net.proc_net_stat,
+ &ct_cpu_seq_fops);
+ if (!pde)
+ goto out_stat_nf_conntrack;
+ return 0;
+
+out_stat_nf_conntrack:
+ proc_net_remove(&init_net, "nf_conntrack");
+out_nf_conntrack:
+ return -ENOMEM;
+}
+
+static void nf_conntrack_standalone_fini_proc(void)
+{
+ remove_proc_entry("nf_conntrack", init_net.proc_net_stat);
+ proc_net_remove(&init_net, "nf_conntrack");
+}
+#else
+static int nf_conntrack_standalone_init_proc(void)
+{
+ return 0;
+}
+
+static void nf_conntrack_standalone_fini_proc(void)
+{
+}
#endif /* CONFIG_PROC_FS */
/* Sysctl support */
static int log_invalid_proto_max = 255;
static struct ctl_table_header *nf_ct_sysctl_header;
+static struct ctl_table_header *nf_ct_netfilter_header;
static ctl_table nf_ct_sysctl_table[] = {
{
{
.ctl_name = NET_NF_CONNTRACK_COUNT,
.procname = "nf_conntrack_count",
- .data = &nf_conntrack_count,
+ .data = &init_net.ct.count,
.maxlen = sizeof(int),
.mode = 0444,
.proc_handler = &proc_dointvec,
static ctl_table nf_ct_netfilter_table[] = {
{
- .ctl_name = NET_NETFILTER,
- .procname = "netfilter",
- .mode = 0555,
- .child = nf_ct_sysctl_table,
- },
- {
.ctl_name = NET_NF_CONNTRACK_MAX,
.procname = "nf_conntrack_max",
.data = &nf_conntrack_max,
{ .ctl_name = 0 }
};
-static ctl_table nf_ct_net_table[] = {
- {
- .ctl_name = CTL_NET,
- .procname = "net",
- .mode = 0555,
- .child = nf_ct_netfilter_table,
- },
- { .ctl_name = 0 }
+static struct ctl_path nf_ct_path[] = {
+ { .procname = "net", .ctl_name = CTL_NET, },
+ { }
};
+
EXPORT_SYMBOL_GPL(nf_ct_log_invalid);
+
+static int nf_conntrack_standalone_init_sysctl(void)
+{
+ nf_ct_netfilter_header =
+ register_sysctl_paths(nf_ct_path, nf_ct_netfilter_table);
+ if (!nf_ct_netfilter_header)
+ goto out;
+
+ nf_ct_sysctl_header =
+ register_sysctl_paths(nf_net_netfilter_sysctl_path,
+ nf_ct_sysctl_table);
+ if (!nf_ct_sysctl_header)
+ goto out_unregister_netfilter;
+
+ return 0;
+
+out_unregister_netfilter:
+ unregister_sysctl_table(nf_ct_netfilter_header);
+out:
+ printk("nf_conntrack: can't register to sysctl.\n");
+ return -ENOMEM;
+}
+
+static void nf_conntrack_standalone_fini_sysctl(void)
+{
+ unregister_sysctl_table(nf_ct_netfilter_header);
+ unregister_sysctl_table(nf_ct_sysctl_header);
+}
+#else
+static int nf_conntrack_standalone_init_sysctl(void)
+{
+ return 0;
+}
+
+static void nf_conntrack_standalone_fini_sysctl(void)
+{
+}
#endif /* CONFIG_SYSCTL */
-static int __init nf_conntrack_standalone_init(void)
+static int nf_conntrack_net_init(struct net *net)
{
-#ifdef CONFIG_PROC_FS
- struct proc_dir_entry *proc, *proc_stat;
-#endif
- int ret = 0;
+ return nf_conntrack_init(net);
+}
- ret = nf_conntrack_init();
- if (ret < 0)
- return ret;
+static void nf_conntrack_net_exit(struct net *net)
+{
+ nf_conntrack_cleanup(net);
+}
-#ifdef CONFIG_PROC_FS
- proc = proc_net_fops_create(&init_net, "nf_conntrack", 0440, &ct_file_ops);
- if (!proc) goto cleanup_init;
+static struct pernet_operations nf_conntrack_net_ops = {
+ .init = nf_conntrack_net_init,
+ .exit = nf_conntrack_net_exit,
+};
- proc_stat = create_proc_entry("nf_conntrack", S_IRUGO, init_net.proc_net_stat);
- if (!proc_stat)
- goto cleanup_proc;
+static int __init nf_conntrack_standalone_init(void)
+{
+ int ret;
- proc_stat->proc_fops = &ct_cpu_seq_fops;
- proc_stat->owner = THIS_MODULE;
-#endif
-#ifdef CONFIG_SYSCTL
- nf_ct_sysctl_header = register_sysctl_table(nf_ct_net_table);
- if (nf_ct_sysctl_header == NULL) {
- printk("nf_conntrack: can't register to sysctl.\n");
- ret = -ENOMEM;
- goto cleanup_proc_stat;
- }
-#endif
- return ret;
+ ret = register_pernet_subsys(&nf_conntrack_net_ops);
+ if (ret < 0)
+ goto out;
+ ret = nf_conntrack_standalone_init_proc();
+ if (ret < 0)
+ goto out_proc;
+ ret = nf_conntrack_standalone_init_sysctl();
+ if (ret < 0)
+ goto out_sysctl;
+ return 0;
-#ifdef CONFIG_SYSCTL
- cleanup_proc_stat:
-#endif
-#ifdef CONFIG_PROC_FS
- remove_proc_entry("nf_conntrack", init_net. proc_net_stat);
- cleanup_proc:
- proc_net_remove(&init_net, "nf_conntrack");
- cleanup_init:
-#endif /* CNFIG_PROC_FS */
- nf_conntrack_cleanup();
+out_sysctl:
+ nf_conntrack_standalone_fini_proc();
+out_proc:
+ unregister_pernet_subsys(&nf_conntrack_net_ops);
+out:
return ret;
}
static void __exit nf_conntrack_standalone_fini(void)
{
-#ifdef CONFIG_SYSCTL
- unregister_sysctl_table(nf_ct_sysctl_header);
-#endif
-#ifdef CONFIG_PROC_FS
- remove_proc_entry("nf_conntrack", init_net.proc_net_stat);
- proc_net_remove(&init_net, "nf_conntrack");
-#endif /* CNFIG_PROC_FS */
- nf_conntrack_cleanup();
+ nf_conntrack_standalone_fini_sysctl();
+ nf_conntrack_standalone_fini_proc();
+ unregister_pernet_subsys(&nf_conntrack_net_ops);
}
module_init(nf_conntrack_standalone_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff