int nf_ct_l4proto_register(struct nf_conntrack_l4proto *proto);
void nf_ct_l4proto_unregister(struct nf_conntrack_l4proto *proto);
-static inline void nf_ct_kfree_compat_sysctl_table(struct nf_proto_net *pn)
-{
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- kfree(pn->ctl_compat_table);
- pn->ctl_compat_table = NULL;
-#endif
-}
-
/* Generic netlink helpers */
int nf_ct_port_tuple_to_nlattr(struct sk_buff *skb,
const struct nf_conntrack_tuple *tuple);
#ifdef CONFIG_SYSCTL
struct ctl_table_header *ctl_table_header;
struct ctl_table *ctl_table;
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- struct ctl_table_header *ctl_compat_header;
- struct ctl_table *ctl_compat_table;
-#endif
#endif
unsigned int users;
};
struct nf_udp_net udp;
struct nf_icmp_net icmp;
struct nf_icmp_net icmpv6;
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- struct ctl_table_header *ctl_table_header;
- struct ctl_table *ctl_table;
-#endif
};
struct ct_pcpu {
To compile it as a module, choose M here. If unsure, say N.
-config NF_CONNTRACK_PROC_COMPAT
- bool "proc/sysctl compatibility with old connection tracking"
- depends on NF_CONNTRACK_PROCFS && NF_CONNTRACK_IPV4
- default y
- help
- This option enables /proc and sysctl compatibility with the old
- layer 3 dependent connection tracking. This is needed to keep
- old programs that have not been adapted to the new names working.
-
- If unsure, say Y.
-
if NF_TABLES
config NF_TABLES_IPV4
# objects for l3 independent conntrack
nf_conntrack_ipv4-y := nf_conntrack_l3proto_ipv4.o nf_conntrack_proto_icmp.o
-ifeq ($(CONFIG_NF_CONNTRACK_PROC_COMPAT),y)
-ifeq ($(CONFIG_PROC_FS),y)
-nf_conntrack_ipv4-objs += nf_conntrack_l3proto_ipv4_compat.o
-endif
-endif
# connection tracking
obj-$(CONFIG_NF_CONNTRACK_IPV4) += nf_conntrack_ipv4.o
},
};
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
-static int log_invalid_proto_min = 0;
-static int log_invalid_proto_max = 255;
-
-static struct ctl_table ip_ct_sysctl_table[] = {
- {
- .procname = "ip_conntrack_max",
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "ip_conntrack_count",
- .maxlen = sizeof(int),
- .mode = 0444,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "ip_conntrack_buckets",
- .maxlen = sizeof(unsigned int),
- .mode = 0444,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "ip_conntrack_checksum",
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "ip_conntrack_log_invalid",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = &log_invalid_proto_min,
- .extra2 = &log_invalid_proto_max,
- },
- { }
-};
-#endif /* CONFIG_SYSCTL && CONFIG_NF_CONNTRACK_PROC_COMPAT */
-
/* Fast function for those who don't want to parse /proc (and I don't
blame them). */
/* Reversing the socket's dst/src point of view gives us the reply
static int ipv4_init_net(struct net *net)
{
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- struct nf_ip_net *in = &net->ct.nf_ct_proto;
- in->ctl_table = kmemdup(ip_ct_sysctl_table,
- sizeof(ip_ct_sysctl_table),
- GFP_KERNEL);
- if (!in->ctl_table)
- return -ENOMEM;
-
- in->ctl_table[0].data = &nf_conntrack_max;
- in->ctl_table[1].data = &net->ct.count;
- in->ctl_table[2].data = &nf_conntrack_htable_size;
- in->ctl_table[3].data = &net->ct.sysctl_checksum;
- in->ctl_table[4].data = &net->ct.sysctl_log_invalid;
-#endif
return 0;
}
.nlattr_tuple_size = ipv4_nlattr_tuple_size,
.nlattr_to_tuple = ipv4_nlattr_to_tuple,
.nla_policy = ipv4_nla_policy,
-#endif
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- .ctl_table_path = "net/ipv4/netfilter",
#endif
.init_net = ipv4_init_net,
.me = THIS_MODULE,
goto cleanup_icmpv4;
}
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- ret = nf_conntrack_ipv4_compat_init();
- if (ret < 0)
- goto cleanup_proto;
-#endif
return ret;
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- cleanup_proto:
- nf_ct_l3proto_unregister(&nf_conntrack_l3proto_ipv4);
-#endif
cleanup_icmpv4:
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_icmp);
cleanup_udp4:
static void __exit nf_conntrack_l3proto_ipv4_fini(void)
{
synchronize_net();
-#if defined(CONFIG_PROC_FS) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- nf_conntrack_ipv4_compat_fini();
-#endif
nf_ct_l3proto_unregister(&nf_conntrack_l3proto_ipv4);
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_icmp);
nf_ct_l4proto_unregister(&nf_conntrack_l4proto_udp4);
+++ /dev/null
-/* ip_conntrack proc compat - based on ip_conntrack_standalone.c
- *
- * (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org>
- * (C) 2006-2010 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/types.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/percpu.h>
-#include <linux/security.h>
-#include <net/net_namespace.h>
-
-#include <linux/netfilter.h>
-#include <net/netfilter/nf_conntrack_core.h>
-#include <net/netfilter/nf_conntrack_l3proto.h>
-#include <net/netfilter/nf_conntrack_l4proto.h>
-#include <net/netfilter/nf_conntrack_expect.h>
-#include <net/netfilter/nf_conntrack_acct.h>
-#include <linux/rculist_nulls.h>
-#include <linux/export.h>
-
-struct ct_iter_state {
- struct seq_net_private p;
- struct hlist_nulls_head *hash;
- unsigned int htable_size;
- unsigned int bucket;
-};
-
-static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
-{
- struct ct_iter_state *st = seq->private;
- struct hlist_nulls_node *n;
-
- for (st->bucket = 0;
- st->bucket < st->htable_size;
- st->bucket++) {
- n = rcu_dereference(
- hlist_nulls_first_rcu(&st->hash[st->bucket]));
- if (!is_a_nulls(n))
- return n;
- }
- return NULL;
-}
-
-static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
- struct hlist_nulls_node *head)
-{
- struct ct_iter_state *st = seq->private;
-
- head = rcu_dereference(hlist_nulls_next_rcu(head));
- while (is_a_nulls(head)) {
- if (likely(get_nulls_value(head) == st->bucket)) {
- if (++st->bucket >= st->htable_size)
- return NULL;
- }
- head = rcu_dereference(
- hlist_nulls_first_rcu(&st->hash[st->bucket]));
- }
- return head;
-}
-
-static struct hlist_nulls_node *ct_get_idx(struct seq_file *seq, loff_t pos)
-{
- struct hlist_nulls_node *head = ct_get_first(seq);
-
- if (head)
- while (pos && (head = ct_get_next(seq, head)))
- pos--;
- return pos ? NULL : head;
-}
-
-static void *ct_seq_start(struct seq_file *seq, loff_t *pos)
- __acquires(RCU)
-{
- struct ct_iter_state *st = seq->private;
-
- rcu_read_lock();
-
- nf_conntrack_get_ht(&st->hash, &st->htable_size);
- return ct_get_idx(seq, *pos);
-}
-
-static void *ct_seq_next(struct seq_file *s, void *v, loff_t *pos)
-{
- (*pos)++;
- return ct_get_next(s, v);
-}
-
-static void ct_seq_stop(struct seq_file *s, void *v)
- __releases(RCU)
-{
- rcu_read_unlock();
-}
-
-#ifdef CONFIG_NF_CONNTRACK_SECMARK
-static void ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
-{
- int ret;
- u32 len;
- char *secctx;
-
- ret = security_secid_to_secctx(ct->secmark, &secctx, &len);
- if (ret)
- return;
-
- seq_printf(s, "secctx=%s ", secctx);
-
- security_release_secctx(secctx, len);
-}
-#else
-static inline void ct_show_secctx(struct seq_file *s, const struct nf_conn *ct)
-{
-}
-#endif
-
-static bool ct_seq_should_skip(const struct nf_conn *ct,
- const struct net *net,
- const struct nf_conntrack_tuple_hash *hash)
-{
- /* we only want to print DIR_ORIGINAL */
- if (NF_CT_DIRECTION(hash))
- return true;
-
- if (nf_ct_l3num(ct) != AF_INET)
- return true;
-
- if (!net_eq(nf_ct_net(ct), net))
- return true;
-
- return false;
-}
-
-static int ct_seq_show(struct seq_file *s, void *v)
-{
- struct nf_conntrack_tuple_hash *hash = v;
- struct nf_conn *ct = nf_ct_tuplehash_to_ctrack(hash);
- const struct nf_conntrack_l3proto *l3proto;
- const struct nf_conntrack_l4proto *l4proto;
- int ret = 0;
-
- NF_CT_ASSERT(ct);
- if (ct_seq_should_skip(ct, seq_file_net(s), hash))
- return 0;
-
- if (unlikely(!atomic_inc_not_zero(&ct->ct_general.use)))
- return 0;
-
- /* check if we raced w. object reuse */
- if (!nf_ct_is_confirmed(ct) ||
- ct_seq_should_skip(ct, seq_file_net(s), hash))
- goto release;
-
- l3proto = __nf_ct_l3proto_find(nf_ct_l3num(ct));
- NF_CT_ASSERT(l3proto);
- l4proto = __nf_ct_l4proto_find(nf_ct_l3num(ct), nf_ct_protonum(ct));
- NF_CT_ASSERT(l4proto);
-
- ret = -ENOSPC;
- seq_printf(s, "%-8s %u %ld ",
- l4proto->name, nf_ct_protonum(ct),
- nf_ct_expires(ct) / HZ);
-
- if (l4proto->print_conntrack)
- l4proto->print_conntrack(s, ct);
-
- if (seq_has_overflowed(s))
- goto release;
-
- print_tuple(s, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple,
- l3proto, l4proto);
-
- if (seq_has_overflowed(s))
- goto release;
-
- if (seq_print_acct(s, ct, IP_CT_DIR_ORIGINAL))
- goto release;
-
- if (!(test_bit(IPS_SEEN_REPLY_BIT, &ct->status)))
- seq_printf(s, "[UNREPLIED] ");
-
- print_tuple(s, &ct->tuplehash[IP_CT_DIR_REPLY].tuple,
- l3proto, l4proto);
-
- if (seq_has_overflowed(s))
- goto release;
-
- if (seq_print_acct(s, ct, IP_CT_DIR_REPLY))
- goto release;
-
- if (test_bit(IPS_ASSURED_BIT, &ct->status))
- seq_printf(s, "[ASSURED] ");
-
-#ifdef CONFIG_NF_CONNTRACK_MARK
- seq_printf(s, "mark=%u ", ct->mark);
-#endif
-
- ct_show_secctx(s, ct);
-
- seq_printf(s, "use=%u\n", atomic_read(&ct->ct_general.use));
-
- if (seq_has_overflowed(s))
- goto release;
-
- ret = 0;
-release:
- nf_ct_put(ct);
- return ret;
-}
-
-static const struct seq_operations ct_seq_ops = {
- .start = ct_seq_start,
- .next = ct_seq_next,
- .stop = ct_seq_stop,
- .show = ct_seq_show
-};
-
-static int ct_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ct_seq_ops,
- sizeof(struct ct_iter_state));
-}
-
-static const struct file_operations ct_file_ops = {
- .owner = THIS_MODULE,
- .open = ct_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-/* expects */
-struct ct_expect_iter_state {
- struct seq_net_private p;
- unsigned int bucket;
-};
-
-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++) {
- n = rcu_dereference(
- hlist_first_rcu(&nf_ct_expect_hash[st->bucket]));
- if (n)
- return n;
- }
- return NULL;
-}
-
-static struct hlist_node *ct_expect_get_next(struct seq_file *seq,
- struct hlist_node *head)
-{
- struct ct_expect_iter_state *st = seq->private;
-
- head = rcu_dereference(hlist_next_rcu(head));
- while (head == NULL) {
- if (++st->bucket >= nf_ct_expect_hsize)
- return NULL;
- head = rcu_dereference(
- hlist_first_rcu(&nf_ct_expect_hash[st->bucket]));
- }
- return head;
-}
-
-static struct hlist_node *ct_expect_get_idx(struct seq_file *seq, loff_t pos)
-{
- struct hlist_node *head = ct_expect_get_first(seq);
-
- if (head)
- while (pos && (head = ct_expect_get_next(seq, head)))
- pos--;
- return pos ? NULL : head;
-}
-
-static void *exp_seq_start(struct seq_file *seq, loff_t *pos)
- __acquires(RCU)
-{
- rcu_read_lock();
- return ct_expect_get_idx(seq, *pos);
-}
-
-static void *exp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- (*pos)++;
- return ct_expect_get_next(seq, v);
-}
-
-static void exp_seq_stop(struct seq_file *seq, void *v)
- __releases(RCU)
-{
- rcu_read_unlock();
-}
-
-static int exp_seq_show(struct seq_file *s, void *v)
-{
- struct nf_conntrack_expect *exp;
- const struct hlist_node *n = v;
-
- exp = hlist_entry(n, struct nf_conntrack_expect, hnode);
-
- if (!net_eq(nf_ct_net(exp->master), seq_file_net(s)))
- return 0;
-
- if (exp->tuple.src.l3num != AF_INET)
- return 0;
-
- if (exp->timeout.function)
- seq_printf(s, "%ld ", timer_pending(&exp->timeout)
- ? (long)(exp->timeout.expires - jiffies)/HZ : 0);
- else
- seq_printf(s, "- ");
-
- seq_printf(s, "proto=%u ", exp->tuple.dst.protonum);
-
- print_tuple(s, &exp->tuple,
- __nf_ct_l3proto_find(exp->tuple.src.l3num),
- __nf_ct_l4proto_find(exp->tuple.src.l3num,
- exp->tuple.dst.protonum));
- seq_putc(s, '\n');
-
- return 0;
-}
-
-static const struct seq_operations exp_seq_ops = {
- .start = exp_seq_start,
- .next = exp_seq_next,
- .stop = exp_seq_stop,
- .show = exp_seq_show
-};
-
-static int exp_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &exp_seq_ops,
- sizeof(struct ct_expect_iter_state));
-}
-
-static const struct file_operations ip_exp_file_ops = {
- .owner = THIS_MODULE,
- .open = exp_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-static void *ct_cpu_seq_start(struct seq_file *seq, loff_t *pos)
-{
- struct net *net = seq_file_net(seq);
- 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(net->ct.stat, cpu);
- }
-
- return NULL;
-}
-
-static void *ct_cpu_seq_next(struct seq_file *seq, void *v, loff_t *pos)
-{
- struct net *net = seq_file_net(seq);
- int cpu;
-
- for (cpu = *pos; cpu < nr_cpu_ids; ++cpu) {
- if (!cpu_possible(cpu))
- continue;
- *pos = cpu+1;
- return per_cpu_ptr(net->ct.stat, cpu);
- }
-
- return NULL;
-}
-
-static void ct_cpu_seq_stop(struct seq_file *seq, void *v)
-{
-}
-
-static int ct_cpu_seq_show(struct seq_file *seq, void *v)
-{
- struct net *net = seq_file_net(seq);
- unsigned int nr_conntracks = atomic_read(&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 search_restart\n");
- return 0;
- }
-
- seq_printf(seq, "%08x %08x %08x %08x %08x %08x %08x %08x "
- "%08x %08x %08x %08x %08x %08x %08x %08x %08x\n",
- nr_conntracks,
- st->searched,
- st->found,
- st->new,
- st->invalid,
- st->ignore,
- st->delete,
- st->delete_list,
- st->insert,
- st->insert_failed,
- st->drop,
- st->early_drop,
- st->error,
-
- st->expect_new,
- st->expect_create,
- st->expect_delete,
- st->search_restart
- );
- return 0;
-}
-
-static const struct seq_operations ct_cpu_seq_ops = {
- .start = ct_cpu_seq_start,
- .next = ct_cpu_seq_next,
- .stop = ct_cpu_seq_stop,
- .show = ct_cpu_seq_show,
-};
-
-static int ct_cpu_seq_open(struct inode *inode, struct file *file)
-{
- return seq_open_net(inode, file, &ct_cpu_seq_ops,
- sizeof(struct seq_net_private));
-}
-
-static const struct file_operations ct_cpu_seq_fops = {
- .owner = THIS_MODULE,
- .open = ct_cpu_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = seq_release_net,
-};
-
-static int __net_init ip_conntrack_net_init(struct net *net)
-{
- struct proc_dir_entry *proc, *proc_exp, *proc_stat;
-
- proc = proc_create("ip_conntrack", 0440, net->proc_net, &ct_file_ops);
- if (!proc)
- goto err1;
-
- proc_exp = proc_create("ip_conntrack_expect", 0440, net->proc_net,
- &ip_exp_file_ops);
- if (!proc_exp)
- goto err2;
-
- proc_stat = proc_create("ip_conntrack", S_IRUGO,
- net->proc_net_stat, &ct_cpu_seq_fops);
- if (!proc_stat)
- goto err3;
- return 0;
-
-err3:
- remove_proc_entry("ip_conntrack_expect", net->proc_net);
-err2:
- remove_proc_entry("ip_conntrack", net->proc_net);
-err1:
- return -ENOMEM;
-}
-
-static void __net_exit ip_conntrack_net_exit(struct net *net)
-{
- remove_proc_entry("ip_conntrack", net->proc_net_stat);
- remove_proc_entry("ip_conntrack_expect", net->proc_net);
- remove_proc_entry("ip_conntrack", net->proc_net);
-}
-
-static struct pernet_operations ip_conntrack_net_ops = {
- .init = ip_conntrack_net_init,
- .exit = ip_conntrack_net_exit,
-};
-
-int __init nf_conntrack_ipv4_compat_init(void)
-{
- return register_pernet_subsys(&ip_conntrack_net_ops);
-}
-
-void __exit nf_conntrack_ipv4_compat_fini(void)
-{
- unregister_pernet_subsys(&ip_conntrack_net_ops);
-}
},
{ }
};
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
-static struct ctl_table icmp_compat_sysctl_table[] = {
- {
- .procname = "ip_conntrack_icmp_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif /* CONFIG_SYSCTL */
static int icmp_kmemdup_sysctl_table(struct nf_proto_net *pn,
return 0;
}
-static int icmp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn,
- struct nf_icmp_net *in)
-{
-#ifdef CONFIG_SYSCTL
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- pn->ctl_compat_table = kmemdup(icmp_compat_sysctl_table,
- sizeof(icmp_compat_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_compat_table)
- return -ENOMEM;
-
- pn->ctl_compat_table[0].data = &in->timeout;
-#endif
-#endif
- return 0;
-}
-
static int icmp_init_net(struct net *net, u_int16_t proto)
{
- int ret;
struct nf_icmp_net *in = icmp_pernet(net);
struct nf_proto_net *pn = &in->pn;
in->timeout = nf_ct_icmp_timeout;
- ret = icmp_kmemdup_compat_sysctl_table(pn, in);
- if (ret < 0)
- return ret;
-
- ret = icmp_kmemdup_sysctl_table(pn, in);
- if (ret < 0)
- nf_ct_kfree_compat_sysctl_table(pn);
-
- return ret;
+ return icmp_kmemdup_sysctl_table(pn, in);
}
static struct nf_proto_net *icmp_get_net_proto(struct net *net)
}
unsigned int nf_conntrack_htable_size __read_mostly;
-EXPORT_SYMBOL_GPL(nf_conntrack_htable_size);
-
unsigned int nf_conntrack_max __read_mostly;
-EXPORT_SYMBOL_GPL(nf_conntrack_max);
DEFINE_PER_CPU(struct nf_conn, nf_conntrack_untracked);
EXPORT_PER_CPU_SYMBOL(nf_conntrack_untracked);
nf_ct_l3num(i) == l4proto->l3proto;
}
-static struct nf_ip_net *nf_ct_l3proto_net(struct net *net,
- struct nf_conntrack_l3proto *l3proto)
-{
- if (l3proto->l3proto == PF_INET)
- return &net->ct.nf_ct_proto;
- else
- return NULL;
-}
-
-static int nf_ct_l3proto_register_sysctl(struct net *net,
- struct nf_conntrack_l3proto *l3proto)
-{
- int err = 0;
- struct nf_ip_net *in = nf_ct_l3proto_net(net, l3proto);
- /* nf_conntrack_l3proto_ipv6 doesn't support sysctl */
- if (in == NULL)
- return 0;
-
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- if (in->ctl_table != NULL) {
- err = nf_ct_register_sysctl(net,
- &in->ctl_table_header,
- l3proto->ctl_table_path,
- in->ctl_table);
- if (err < 0) {
- kfree(in->ctl_table);
- in->ctl_table = NULL;
- }
- }
-#endif
- return err;
-}
-
-static void nf_ct_l3proto_unregister_sysctl(struct net *net,
- struct nf_conntrack_l3proto *l3proto)
-{
- struct nf_ip_net *in = nf_ct_l3proto_net(net, l3proto);
-
- if (in == NULL)
- return;
-#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
- if (in->ctl_table_header != NULL)
- nf_ct_unregister_sysctl(&in->ctl_table_header,
- &in->ctl_table,
- 0);
-#endif
-}
-
int nf_ct_l3proto_register(struct nf_conntrack_l3proto *proto)
{
int ret = 0;
int nf_ct_l3proto_pernet_register(struct net *net,
struct nf_conntrack_l3proto *proto)
{
- int ret = 0;
+ int ret;
if (proto->init_net) {
ret = proto->init_net(net);
return ret;
}
- return nf_ct_l3proto_register_sysctl(net, proto);
+ return 0;
}
EXPORT_SYMBOL_GPL(nf_ct_l3proto_pernet_register);
void nf_ct_l3proto_pernet_unregister(struct net *net,
struct nf_conntrack_l3proto *proto)
{
- nf_ct_l3proto_unregister_sysctl(net, proto);
-
/* Remove all contrack entries for this protocol */
nf_ct_iterate_cleanup(net, kill_l3proto, proto, 0, 0);
}
}
}
}
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- if (l4proto->l3proto != AF_INET6 && pn->ctl_compat_table != NULL) {
- if (err < 0) {
- nf_ct_kfree_compat_sysctl_table(pn);
- goto out;
- }
- err = nf_ct_register_sysctl(net,
- &pn->ctl_compat_header,
- "net/ipv4/netfilter",
- pn->ctl_compat_table);
- if (err == 0)
- goto out;
-
- nf_ct_kfree_compat_sysctl_table(pn);
- nf_ct_unregister_sysctl(&pn->ctl_table_header,
- &pn->ctl_table,
- pn->users);
- }
-out:
-#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif /* CONFIG_SYSCTL */
return err;
}
nf_ct_unregister_sysctl(&pn->ctl_table_header,
&pn->ctl_table,
pn->users);
-
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- if (l4proto->l3proto != AF_INET6 && pn->ctl_compat_header != NULL)
- nf_ct_unregister_sysctl(&pn->ctl_compat_header,
- &pn->ctl_compat_table,
- 0);
-#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif /* CONFIG_SYSCTL */
}
},
{ }
};
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
-static struct ctl_table generic_compat_sysctl_table[] = {
- {
- .procname = "ip_conntrack_generic_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif /* CONFIG_SYSCTL */
static int generic_kmemdup_sysctl_table(struct nf_proto_net *pn,
return 0;
}
-static int generic_kmemdup_compat_sysctl_table(struct nf_proto_net *pn,
- struct nf_generic_net *gn)
-{
-#ifdef CONFIG_SYSCTL
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- pn->ctl_compat_table = kmemdup(generic_compat_sysctl_table,
- sizeof(generic_compat_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_compat_table)
- return -ENOMEM;
-
- pn->ctl_compat_table[0].data = &gn->timeout;
-#endif
-#endif
- return 0;
-}
-
static int generic_init_net(struct net *net, u_int16_t proto)
{
- int ret;
struct nf_generic_net *gn = generic_pernet(net);
struct nf_proto_net *pn = &gn->pn;
gn->timeout = nf_ct_generic_timeout;
- ret = generic_kmemdup_compat_sysctl_table(pn, gn);
- if (ret < 0)
- return ret;
-
- ret = generic_kmemdup_sysctl_table(pn, gn);
- if (ret < 0)
- nf_ct_kfree_compat_sysctl_table(pn);
-
- return ret;
+ return generic_kmemdup_sysctl_table(pn, gn);
}
static struct nf_proto_net *generic_get_net_proto(struct net *net)
},
{ }
};
-
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
-static struct ctl_table sctp_compat_sysctl_table[] = {
- {
- .procname = "ip_conntrack_sctp_timeout_closed",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_sctp_timeout_cookie_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_sctp_timeout_cookie_echoed",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_sctp_timeout_established",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_sctp_timeout_shutdown_sent",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_sctp_timeout_shutdown_recd",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_sctp_timeout_shutdown_ack_sent",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif
static int sctp_kmemdup_sysctl_table(struct nf_proto_net *pn,
return 0;
}
-static int sctp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn,
- struct sctp_net *sn)
-{
-#ifdef CONFIG_SYSCTL
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- pn->ctl_compat_table = kmemdup(sctp_compat_sysctl_table,
- sizeof(sctp_compat_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_compat_table)
- return -ENOMEM;
-
- pn->ctl_compat_table[0].data = &sn->timeouts[SCTP_CONNTRACK_CLOSED];
- pn->ctl_compat_table[1].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_WAIT];
- pn->ctl_compat_table[2].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_ECHOED];
- pn->ctl_compat_table[3].data = &sn->timeouts[SCTP_CONNTRACK_ESTABLISHED];
- pn->ctl_compat_table[4].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT];
- pn->ctl_compat_table[5].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD];
- pn->ctl_compat_table[6].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT];
-#endif
-#endif
- return 0;
-}
-
static int sctp_init_net(struct net *net, u_int16_t proto)
{
- int ret;
struct sctp_net *sn = sctp_pernet(net);
struct nf_proto_net *pn = &sn->pn;
sn->timeouts[i] = sctp_timeouts[i];
}
- if (proto == AF_INET) {
- ret = sctp_kmemdup_compat_sysctl_table(pn, sn);
- if (ret < 0)
- return ret;
-
- ret = sctp_kmemdup_sysctl_table(pn, sn);
- if (ret < 0)
- nf_ct_kfree_compat_sysctl_table(pn);
- } else
- ret = sctp_kmemdup_sysctl_table(pn, sn);
-
- return ret;
+ return sctp_kmemdup_sysctl_table(pn, sn);
}
static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = {
},
{ }
};
-
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
-static struct ctl_table tcp_compat_sysctl_table[] = {
- {
- .procname = "ip_conntrack_tcp_timeout_syn_sent",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_syn_sent2",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_syn_recv",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_established",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_fin_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_close_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_last_ack",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_time_wait",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_close",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_timeout_max_retrans",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_tcp_loose",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "ip_conntrack_tcp_be_liberal",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "ip_conntrack_tcp_max_retrans",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- { }
-};
-#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif /* CONFIG_SYSCTL */
static int tcp_kmemdup_sysctl_table(struct nf_proto_net *pn,
return 0;
}
-static int tcp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn,
- struct nf_tcp_net *tn)
-{
-#ifdef CONFIG_SYSCTL
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- pn->ctl_compat_table = kmemdup(tcp_compat_sysctl_table,
- sizeof(tcp_compat_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_compat_table)
- return -ENOMEM;
-
- pn->ctl_compat_table[0].data = &tn->timeouts[TCP_CONNTRACK_SYN_SENT];
- pn->ctl_compat_table[1].data = &tn->timeouts[TCP_CONNTRACK_SYN_SENT2];
- pn->ctl_compat_table[2].data = &tn->timeouts[TCP_CONNTRACK_SYN_RECV];
- pn->ctl_compat_table[3].data = &tn->timeouts[TCP_CONNTRACK_ESTABLISHED];
- pn->ctl_compat_table[4].data = &tn->timeouts[TCP_CONNTRACK_FIN_WAIT];
- pn->ctl_compat_table[5].data = &tn->timeouts[TCP_CONNTRACK_CLOSE_WAIT];
- pn->ctl_compat_table[6].data = &tn->timeouts[TCP_CONNTRACK_LAST_ACK];
- pn->ctl_compat_table[7].data = &tn->timeouts[TCP_CONNTRACK_TIME_WAIT];
- pn->ctl_compat_table[8].data = &tn->timeouts[TCP_CONNTRACK_CLOSE];
- pn->ctl_compat_table[9].data = &tn->timeouts[TCP_CONNTRACK_RETRANS];
- pn->ctl_compat_table[10].data = &tn->tcp_loose;
- pn->ctl_compat_table[11].data = &tn->tcp_be_liberal;
- pn->ctl_compat_table[12].data = &tn->tcp_max_retrans;
-#endif
-#endif
- return 0;
-}
-
static int tcp_init_net(struct net *net, u_int16_t proto)
{
- int ret;
struct nf_tcp_net *tn = tcp_pernet(net);
struct nf_proto_net *pn = &tn->pn;
tn->tcp_max_retrans = nf_ct_tcp_max_retrans;
}
- if (proto == AF_INET) {
- ret = tcp_kmemdup_compat_sysctl_table(pn, tn);
- if (ret < 0)
- return ret;
-
- ret = tcp_kmemdup_sysctl_table(pn, tn);
- if (ret < 0)
- nf_ct_kfree_compat_sysctl_table(pn);
- } else
- ret = tcp_kmemdup_sysctl_table(pn, tn);
-
- return ret;
+ return tcp_kmemdup_sysctl_table(pn, tn);
}
static struct nf_proto_net *tcp_get_net_proto(struct net *net)
},
{ }
};
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
-static struct ctl_table udp_compat_sysctl_table[] = {
- {
- .procname = "ip_conntrack_udp_timeout",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- {
- .procname = "ip_conntrack_udp_timeout_stream",
- .maxlen = sizeof(unsigned int),
- .mode = 0644,
- .proc_handler = proc_dointvec_jiffies,
- },
- { }
-};
-#endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */
#endif /* CONFIG_SYSCTL */
static int udp_kmemdup_sysctl_table(struct nf_proto_net *pn,
return 0;
}
-static int udp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn,
- struct nf_udp_net *un)
-{
-#ifdef CONFIG_SYSCTL
-#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
- pn->ctl_compat_table = kmemdup(udp_compat_sysctl_table,
- sizeof(udp_compat_sysctl_table),
- GFP_KERNEL);
- if (!pn->ctl_compat_table)
- return -ENOMEM;
-
- pn->ctl_compat_table[0].data = &un->timeouts[UDP_CT_UNREPLIED];
- pn->ctl_compat_table[1].data = &un->timeouts[UDP_CT_REPLIED];
-#endif
-#endif
- return 0;
-}
-
static int udp_init_net(struct net *net, u_int16_t proto)
{
- int ret;
struct nf_udp_net *un = udp_pernet(net);
struct nf_proto_net *pn = &un->pn;
un->timeouts[i] = udp_timeouts[i];
}
- if (proto == AF_INET) {
- ret = udp_kmemdup_compat_sysctl_table(pn, un);
- if (ret < 0)
- return ret;
-
- ret = udp_kmemdup_sysctl_table(pn, un);
- if (ret < 0)
- nf_ct_kfree_compat_sysctl_table(pn);
- } else
- ret = udp_kmemdup_sysctl_table(pn, un);
-
- return ret;
+ return udp_kmemdup_sysctl_table(pn, un);
}
static struct nf_proto_net *udp_get_net_proto(struct net *net)
projects / mirror_ubuntu-focal-kernel.git / commitdiff