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[NETFILTER]: nf_conntrack: move conntrack protocol sysctls to individual modules 

Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Patrick McHardy 2006-11-29 02:35:18 +01:00 committed by David S. Miller
parent d62f9ed4a4
commit 933a41e7e1
11 changed files with 296 additions and 330 deletions
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53
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
View File

@ -266,44 +266,6 @@ static struct nf_hook_ops ipv4_conntrack_ops[] = {
},
};
#ifdef CONFIG_SYSCTL
/* From nf_conntrack_proto_icmp.c */
extern unsigned int nf_ct_icmp_timeout;
static struct ctl_table_header *nf_ct_ipv4_sysctl_header;
static ctl_table nf_ct_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_ICMP_TIMEOUT,
.procname = "nf_conntrack_icmp_timeout",
.data = &nf_ct_icmp_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{ .ctl_name = 0 }
};
static ctl_table nf_ct_netfilter_table[] = {
{
.ctl_name = NET_NETFILTER,
.procname = "netfilter",
.mode = 0555,
.child = nf_ct_sysctl_table,
},
{ .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 }
};
#endif
/* 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
@ -472,20 +434,8 @@ static int __init nf_conntrack_l3proto_ipv4_init(void)
printk("nf_conntrack_ipv4: can't register hooks.\n");
goto cleanup_ipv4;
}
#ifdef CONFIG_SYSCTL
nf_ct_ipv4_sysctl_header = register_sysctl_table(nf_ct_net_table, 0);
if (nf_ct_ipv4_sysctl_header == NULL) {
printk("nf_conntrack: can't register to sysctl.\n");
ret = -ENOMEM;
goto cleanup_hooks;
}
#endif
return ret;
#ifdef CONFIG_SYSCTL
cleanup_hooks:
nf_unregister_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops));
#endif
cleanup_ipv4:
nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4);
cleanup_icmp:
@ -502,9 +452,6 @@ static int __init nf_conntrack_l3proto_ipv4_init(void)
static void __exit nf_conntrack_l3proto_ipv4_fini(void)
{
synchronize_net();
#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nf_ct_ipv4_sysctl_header);
#endif
nf_unregister_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops));
nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4);
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmp);

23
net/ipv4/netfilter/nf_conntrack_proto_icmp.c
View File

@ -25,7 +25,7 @@
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_core.h>
unsigned long nf_ct_icmp_timeout __read_mostly = 30*HZ;
static unsigned long nf_ct_icmp_timeout __read_mostly = 30*HZ;
#if 0
#define DEBUGP printk
@ -321,6 +321,23 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
}
#endif
#ifdef CONFIG_SYSCTL
static struct ctl_table_header *icmp_sysctl_header;
static struct ctl_table icmp_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_ICMP_TIMEOUT,
.procname = "nf_conntrack_icmp_timeout",
.data = &nf_ct_icmp_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = 0
}
};
#endif /* CONFIG_SYSCTL */
struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp =
{
.l3proto = PF_INET,
@ -340,6 +357,10 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp =
.tuple_to_nfattr = icmp_tuple_to_nfattr,
.nfattr_to_tuple = icmp_nfattr_to_tuple,
#endif
#ifdef CONFIG_SYSCTL
.ctl_table_header = &icmp_sysctl_header,
.ctl_table = icmp_sysctl_table,
#endif
};
EXPORT_SYMBOL(nf_conntrack_l4proto_icmp);

55
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
View File

@ -324,21 +324,7 @@ static struct nf_hook_ops ipv6_conntrack_ops[] = {
};
#ifdef CONFIG_SYSCTL
/* From nf_conntrack_proto_icmpv6.c */
extern unsigned int nf_ct_icmpv6_timeout;
static struct ctl_table_header *nf_ct_ipv6_sysctl_header;
static ctl_table nf_ct_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_ICMPV6_TIMEOUT,
.procname = "nf_conntrack_icmpv6_timeout",
.data = &nf_ct_icmpv6_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
static ctl_table nf_ct_ipv6_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_FRAG6_TIMEOUT,
.procname = "nf_conntrack_frag6_timeout",
@ -365,26 +351,6 @@ static ctl_table nf_ct_sysctl_table[] = {
},
{ .ctl_name = 0 }
};
static ctl_table nf_ct_netfilter_table[] = {
{
.ctl_name = NET_NETFILTER,
.procname = "netfilter",
.mode = 0555,
.child = nf_ct_sysctl_table,
},
{ .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 }
};
#endif
#if defined(CONFIG_NF_CT_NETLINK) || \
@ -441,6 +407,10 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv6 = {
defined(CONFIG_NF_CT_NETLINK_MODULE)
.tuple_to_nfattr = ipv6_tuple_to_nfattr,
.nfattr_to_tuple = ipv6_nfattr_to_tuple,
#endif
#ifdef CONFIG_SYSCTL
.ctl_table_path = nf_net_netfilter_sysctl_path,
.ctl_table = nf_ct_ipv6_sysctl_table,
#endif
.get_features = ipv6_get_features,
.me = THIS_MODULE,
@ -492,20 +462,8 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
"hook.\n");
goto cleanup_ipv6;
}
#ifdef CONFIG_SYSCTL
nf_ct_ipv6_sysctl_header = register_sysctl_table(nf_ct_net_table, 0);
if (nf_ct_ipv6_sysctl_header == NULL) {
printk("nf_conntrack: can't register to sysctl.\n");
ret = -ENOMEM;
goto cleanup_hooks;
}
#endif
return ret;
#ifdef CONFIG_SYSCTL
cleanup_hooks:
nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops));
#endif
cleanup_ipv6:
nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6);
cleanup_icmpv6:
@ -522,9 +480,6 @@ static int __init nf_conntrack_l3proto_ipv6_init(void)
static void __exit nf_conntrack_l3proto_ipv6_fini(void)
{
synchronize_net();
#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nf_ct_ipv6_sysctl_header);
#endif
nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops));
nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6);
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmpv6);

23
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
View File

@ -33,7 +33,7 @@
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/ipv6/nf_conntrack_icmpv6.h>
unsigned long nf_ct_icmpv6_timeout __read_mostly = 30*HZ;
static unsigned long nf_ct_icmpv6_timeout __read_mostly = 30*HZ;
#if 0
#define DEBUGP printk
@ -298,6 +298,23 @@ static int icmpv6_nfattr_to_tuple(struct nfattr *tb[],
}
#endif
#ifdef CONFIG_SYSCTL
static struct ctl_table_header *icmpv6_sysctl_header;
static struct ctl_table icmpv6_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_ICMPV6_TIMEOUT,
.procname = "nf_conntrack_icmpv6_timeout",
.data = &nf_ct_icmpv6_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = 0
}
};
#endif /* CONFIG_SYSCTL */
struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 =
{
.l3proto = PF_INET6,
@ -315,6 +332,10 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 =
.tuple_to_nfattr = icmpv6_tuple_to_nfattr,
.nfattr_to_tuple = icmpv6_nfattr_to_tuple,
#endif
#ifdef CONFIG_SYSCTL
.ctl_table_header = &icmpv6_sysctl_header,
.ctl_table = icmpv6_sysctl_table,
#endif
};
EXPORT_SYMBOL(nf_conntrack_l4proto_icmpv6);

8
net/netfilter/nf_conntrack_core.c
View File

@ -1070,6 +1070,8 @@ void nf_conntrack_cleanup(void)
free_conntrack_hash(nf_conntrack_hash, nf_conntrack_vmalloc,
nf_conntrack_htable_size);
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_generic);
/* free l3proto protocol tables */
for (i = 0; i < PF_MAX; i++)
if (nf_ct_protos[i]) {
@ -1195,6 +1197,10 @@ int __init nf_conntrack_init(void)
goto err_free_conntrack_slab;
}
ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_generic);
if (ret < 0)
goto out_free_expect_slab;
/* Don't NEED lock here, but good form anyway. */
write_lock_bh(&nf_conntrack_lock);
for (i = 0; i < AF_MAX; i++)
@ -1212,6 +1218,8 @@ int __init nf_conntrack_init(void)
return ret;
out_free_expect_slab:
kmem_cache_destroy(nf_conntrack_expect_cachep);
err_free_conntrack_slab:
nf_conntrack_unregister_cache(NF_CT_F_BASIC);
err_free_hash:

12
net/netfilter/nf_conntrack_proto.c
View File

@ -252,7 +252,7 @@ static int nf_ct_l4proto_register_sysctl(struct nf_conntrack_l4proto *l4proto)
l4proto->ctl_table_users);
}
mutex_unlock(&nf_ct_proto_sysctl_mutex);
#endif
#endif /* CONFIG_SYSCTL */
return err;
}
@ -266,7 +266,7 @@ static void nf_ct_l4proto_unregister_sysctl(struct nf_conntrack_l4proto *l4proto
l4proto->ctl_table,
l4proto->ctl_table_users);
mutex_unlock(&nf_ct_proto_sysctl_mutex);
#endif
#endif /* CONFIG_SYSCTL */
}
/* FIXME: Allow NULL functions and sub in pointers to generic for
@ -280,6 +280,9 @@ int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto)
goto out;
}
if (l4proto == &nf_conntrack_l4proto_generic)
return nf_ct_l4proto_register_sysctl(l4proto);
retry:
write_lock_bh(&nf_conntrack_lock);
if (nf_ct_protos[l4proto->l3proto]) {
@ -346,6 +349,11 @@ int nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto)
goto out;
}
if (l4proto == &nf_conntrack_l4proto_generic) {
nf_ct_l4proto_unregister_sysctl(l4proto);
goto out;
}
write_lock_bh(&nf_conntrack_lock);
if (nf_ct_protos[l4proto->l3proto][l4proto->l4proto]
!= l4proto) {

23
net/netfilter/nf_conntrack_proto_generic.c
View File

@ -17,7 +17,7 @@
#include <linux/netfilter.h>
#include <net/netfilter/nf_conntrack_l4proto.h>
unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ;
static unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ;
static int generic_pkt_to_tuple(const struct sk_buff *skb,
unsigned int dataoff,
@ -71,6 +71,23 @@ static int new(struct nf_conn *conntrack, const struct sk_buff *skb,
return 1;
}
#ifdef CONFIG_SYSCTL
static struct ctl_table_header *generic_sysctl_header;
static struct ctl_table generic_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_GENERIC_TIMEOUT,
.procname = "nf_conntrack_generic_timeout",
.data = &nf_ct_generic_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = 0
}
};
#endif /* CONFIG_SYSCTL */
struct nf_conntrack_l4proto nf_conntrack_l4proto_generic =
{
.l3proto = PF_UNSPEC,
@ -82,4 +99,8 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_generic =
.print_conntrack = generic_print_conntrack,
.packet = packet,
.new = new,
#ifdef CONFIG_SYSCTL
.ctl_table_header = &generic_sysctl_header,
.ctl_table = generic_sysctl_table,
#endif
};

107
net/netfilter/nf_conntrack_proto_sctp.c
View File

@ -509,36 +509,10 @@ static int sctp_new(struct nf_conn *conntrack, const struct sk_buff *skb,
return 1;
}
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 = {
.l3proto = PF_INET,
.l4proto = IPPROTO_SCTP,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
.print_tuple = sctp_print_tuple,
.print_conntrack = sctp_print_conntrack,
.packet = sctp_packet,
.new = sctp_new,
.destroy = NULL,
.me = THIS_MODULE
};
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 = {
.l3proto = PF_INET6,
.l4proto = IPPROTO_SCTP,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
.print_tuple = sctp_print_tuple,
.print_conntrack = sctp_print_conntrack,
.packet = sctp_packet,
.new = sctp_new,
.destroy = NULL,
.me = THIS_MODULE
};
#ifdef CONFIG_SYSCTL
static ctl_table nf_ct_sysctl_table[] = {
static unsigned int sctp_sysctl_table_users;
static struct ctl_table_header *sctp_sysctl_header;
static struct ctl_table sctp_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_SCTP_TIMEOUT_CLOSED,
.procname = "nf_conntrack_sctp_timeout_closed",
@ -595,32 +569,48 @@ static ctl_table nf_ct_sysctl_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{ .ctl_name = 0 }
};
static ctl_table nf_ct_netfilter_table[] = {
{
.ctl_name = NET_NETFILTER,
.procname = "netfilter",
.mode = 0555,
.child = nf_ct_sysctl_table,
},
{ .ctl_name = 0 }
.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_table_header *nf_ct_sysctl_header;
#endif
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 = {
.l3proto = PF_INET,
.l4proto = IPPROTO_SCTP,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
.print_tuple = sctp_print_tuple,
.print_conntrack = sctp_print_conntrack,
.packet = sctp_packet,
.new = sctp_new,
.me = THIS_MODULE,
#ifdef CONFIG_SYSCTL
.ctl_table_users = &sctp_sysctl_table_users,
.ctl_table_header = &sctp_sysctl_header,
.ctl_table = sctp_sysctl_table,
#endif
};
struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 = {
.l3proto = PF_INET6,
.l4proto = IPPROTO_SCTP,
.name = "sctp",
.pkt_to_tuple = sctp_pkt_to_tuple,
.invert_tuple = sctp_invert_tuple,
.print_tuple = sctp_print_tuple,
.print_conntrack = sctp_print_conntrack,
.packet = sctp_packet,
.new = sctp_new,
.me = THIS_MODULE,
#ifdef CONFIG_SYSCTL
.ctl_table_users = &sctp_sysctl_table_users,
.ctl_table_header = &sctp_sysctl_header,
.ctl_table = sctp_sysctl_table,
#endif
};
int __init nf_conntrack_proto_sctp_init(void)
{
int ret;
@ -636,20 +626,8 @@ int __init nf_conntrack_proto_sctp_init(void)
goto cleanup_sctp4;
}
#ifdef CONFIG_SYSCTL
nf_ct_sysctl_header = register_sysctl_table(nf_ct_net_table, 0);
if (nf_ct_sysctl_header == NULL) {
printk("nf_conntrack_proto_sctp: can't register to sysctl.\n");
goto cleanup;
}
#endif
return ret;
#ifdef CONFIG_SYSCTL
cleanup:
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp6);
#endif
cleanup_sctp4:
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp4);
out:
@ -662,9 +640,6 @@ void __exit nf_conntrack_proto_sctp_fini(void)
{
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp6);
nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp4);
#ifdef CONFIG_SYSCTL
unregister_sysctl_table(nf_ct_sysctl_header);
#endif
DEBUGP("SCTP conntrack module unloaded\n");
}

140
net/netfilter/nf_conntrack_proto_tcp.c
View File

@ -93,22 +93,22 @@ static const char *tcp_conntrack_names[] = {
#define HOURS * 60 MINS
#define DAYS * 24 HOURS
unsigned int nf_ct_tcp_timeout_syn_sent __read_mostly = 2 MINS;
unsigned int nf_ct_tcp_timeout_syn_recv __read_mostly = 60 SECS;
unsigned int nf_ct_tcp_timeout_established __read_mostly = 5 DAYS;
unsigned int nf_ct_tcp_timeout_fin_wait __read_mostly = 2 MINS;
unsigned int nf_ct_tcp_timeout_close_wait __read_mostly = 60 SECS;
unsigned int nf_ct_tcp_timeout_last_ack __read_mostly = 30 SECS;
unsigned int nf_ct_tcp_timeout_time_wait __read_mostly = 2 MINS;
unsigned int nf_ct_tcp_timeout_close __read_mostly = 10 SECS;
static unsigned int nf_ct_tcp_timeout_syn_sent __read_mostly = 2 MINS;
static unsigned int nf_ct_tcp_timeout_syn_recv __read_mostly = 60 SECS;
static unsigned int nf_ct_tcp_timeout_established __read_mostly = 5 DAYS;
static unsigned int nf_ct_tcp_timeout_fin_wait __read_mostly = 2 MINS;
static unsigned int nf_ct_tcp_timeout_close_wait __read_mostly = 60 SECS;
static unsigned int nf_ct_tcp_timeout_last_ack __read_mostly = 30 SECS;
static unsigned int nf_ct_tcp_timeout_time_wait __read_mostly = 2 MINS;
static unsigned int nf_ct_tcp_timeout_close __read_mostly = 10 SECS;
/* RFC1122 says the R2 limit should be at least 100 seconds.
Linux uses 15 packets as limit, which corresponds
to ~13-30min depending on RTO. */
unsigned int nf_ct_tcp_timeout_max_retrans __read_mostly = 5 MINS;
static unsigned int nf_ct_tcp_timeout_max_retrans __read_mostly = 5 MINS;
static unsigned int * tcp_timeouts[]
= { NULL, /* TCP_CONNTRACK_NONE */
static unsigned int * tcp_timeouts[] = {
NULL, /* TCP_CONNTRACK_NONE */
&nf_ct_tcp_timeout_syn_sent, /* TCP_CONNTRACK_SYN_SENT, */
&nf_ct_tcp_timeout_syn_recv, /* TCP_CONNTRACK_SYN_RECV, */
&nf_ct_tcp_timeout_established, /* TCP_CONNTRACK_ESTABLISHED, */
@ -1168,7 +1168,113 @@ static int nfattr_to_tcp(struct nfattr *cda[], struct nf_conn *ct)
return 0;
}
#endif
#ifdef CONFIG_SYSCTL
static unsigned int tcp_sysctl_table_users;
static struct ctl_table_header *tcp_sysctl_header;
static struct ctl_table tcp_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT,
.procname = "nf_conntrack_tcp_timeout_syn_sent",
.data = &nf_ct_tcp_timeout_syn_sent,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV,
.procname = "nf_conntrack_tcp_timeout_syn_recv",
.data = &nf_ct_tcp_timeout_syn_recv,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED,
.procname = "nf_conntrack_tcp_timeout_established",
.data = &nf_ct_tcp_timeout_established,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT,
.procname = "nf_conntrack_tcp_timeout_fin_wait",
.data = &nf_ct_tcp_timeout_fin_wait,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT,
.procname = "nf_conntrack_tcp_timeout_close_wait",
.data = &nf_ct_tcp_timeout_close_wait,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK,
.procname = "nf_conntrack_tcp_timeout_last_ack",
.data = &nf_ct_tcp_timeout_last_ack,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT,
.procname = "nf_conntrack_tcp_timeout_time_wait",
.data = &nf_ct_tcp_timeout_time_wait,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE,
.procname = "nf_conntrack_tcp_timeout_close",
.data = &nf_ct_tcp_timeout_close,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS,
.procname = "nf_conntrack_tcp_timeout_max_retrans",
.data = &nf_ct_tcp_timeout_max_retrans,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_LOOSE,
.procname = "nf_conntrack_tcp_loose",
.data = &nf_ct_tcp_loose,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_BE_LIBERAL,
.procname = "nf_conntrack_tcp_be_liberal",
.data = &nf_ct_tcp_be_liberal,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_MAX_RETRANS,
.procname = "nf_conntrack_tcp_max_retrans",
.data = &nf_ct_tcp_max_retrans,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = 0
}
};
#endif /* CONFIG_SYSCTL */
struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 =
{
.l3proto = PF_INET,
@ -1188,6 +1294,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 =
.tuple_to_nfattr = nf_ct_port_tuple_to_nfattr,
.nfattr_to_tuple = nf_ct_port_nfattr_to_tuple,
#endif
#ifdef CONFIG_SYSCTL
.ctl_table_users = &tcp_sysctl_table_users,
.ctl_table_header = &tcp_sysctl_header,
.ctl_table = tcp_sysctl_table,
#endif
};
struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 =
@ -1209,6 +1320,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 =
.tuple_to_nfattr = nf_ct_port_tuple_to_nfattr,
.nfattr_to_tuple = nf_ct_port_nfattr_to_tuple,
#endif
#ifdef CONFIG_SYSCTL
.ctl_table_users = &tcp_sysctl_table_users,
.ctl_table_header = &tcp_sysctl_header,
.ctl_table = tcp_sysctl_table,
#endif
};
EXPORT_SYMBOL(nf_conntrack_l4proto_tcp4);

40
net/netfilter/nf_conntrack_proto_udp.c
View File

@ -29,8 +29,8 @@
#include <net/netfilter/nf_conntrack_l4proto.h>
#include <net/netfilter/nf_conntrack_ecache.h>
unsigned int nf_ct_udp_timeout __read_mostly = 30*HZ;
unsigned int nf_ct_udp_timeout_stream __read_mostly = 180*HZ;
static unsigned int nf_ct_udp_timeout __read_mostly = 30*HZ;
static unsigned int nf_ct_udp_timeout_stream __read_mostly = 180*HZ;
static int udp_pkt_to_tuple(const struct sk_buff *skb,
unsigned int dataoff,
@ -148,6 +148,32 @@ static int udp_error(struct sk_buff *skb, unsigned int dataoff,
return NF_ACCEPT;
}
#ifdef CONFIG_SYSCTL
static unsigned int udp_sysctl_table_users;
static struct ctl_table_header *udp_sysctl_header;
static struct ctl_table udp_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_UDP_TIMEOUT,
.procname = "nf_conntrack_udp_timeout",
.data = &nf_ct_udp_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM,
.procname = "nf_conntrack_udp_timeout_stream",
.data = &nf_ct_udp_timeout_stream,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = 0
}
};
#endif /* CONFIG_SYSCTL */
struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 =
{
.l3proto = PF_INET,
@ -165,6 +191,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 =
.tuple_to_nfattr = nf_ct_port_tuple_to_nfattr,
.nfattr_to_tuple = nf_ct_port_nfattr_to_tuple,
#endif
#ifdef CONFIG_SYSCTL
.ctl_table_users = &udp_sysctl_table_users,
.ctl_table_header = &udp_sysctl_header,
.ctl_table = udp_sysctl_table,
#endif
};
struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 =
@ -184,6 +215,11 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 =
.tuple_to_nfattr = nf_ct_port_tuple_to_nfattr,
.nfattr_to_tuple = nf_ct_port_nfattr_to_tuple,
#endif
#ifdef CONFIG_SYSCTL
.ctl_table_users = &udp_sysctl_table_users,
.ctl_table_header = &udp_sysctl_header,
.ctl_table = udp_sysctl_table,
#endif
};
EXPORT_SYMBOL(nf_conntrack_l4proto_udp4);

142
net/netfilter/nf_conntrack_standalone.c
View File

@ -330,28 +330,6 @@ static struct file_operations ct_cpu_seq_fops = {
int nf_conntrack_checksum __read_mostly = 1;
#ifdef CONFIG_SYSCTL
/* From nf_conntrack_proto_tcp.c */
extern unsigned int nf_ct_tcp_timeout_syn_sent;
extern unsigned int nf_ct_tcp_timeout_syn_recv;
extern unsigned int nf_ct_tcp_timeout_established;
extern unsigned int nf_ct_tcp_timeout_fin_wait;
extern unsigned int nf_ct_tcp_timeout_close_wait;
extern unsigned int nf_ct_tcp_timeout_last_ack;
extern unsigned int nf_ct_tcp_timeout_time_wait;
extern unsigned int nf_ct_tcp_timeout_close;
extern unsigned int nf_ct_tcp_timeout_max_retrans;
extern int nf_ct_tcp_loose;
extern int nf_ct_tcp_be_liberal;
extern int nf_ct_tcp_max_retrans;
/* From nf_conntrack_proto_udp.c */
extern unsigned int nf_ct_udp_timeout;
extern unsigned int nf_ct_udp_timeout_stream;
/* From nf_conntrack_proto_generic.c */
extern unsigned int nf_ct_generic_timeout;
/* Log invalid packets of a given protocol */
static int log_invalid_proto_min = 0;
static int log_invalid_proto_max = 255;
@ -391,94 +369,6 @@ static ctl_table nf_ct_sysctl_table[] = {
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_SENT,
.procname = "nf_conntrack_tcp_timeout_syn_sent",
.data = &nf_ct_tcp_timeout_syn_sent,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_SYN_RECV,
.procname = "nf_conntrack_tcp_timeout_syn_recv",
.data = &nf_ct_tcp_timeout_syn_recv,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_ESTABLISHED,
.procname = "nf_conntrack_tcp_timeout_established",
.data = &nf_ct_tcp_timeout_established,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_FIN_WAIT,
.procname = "nf_conntrack_tcp_timeout_fin_wait",
.data = &nf_ct_tcp_timeout_fin_wait,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE_WAIT,
.procname = "nf_conntrack_tcp_timeout_close_wait",
.data = &nf_ct_tcp_timeout_close_wait,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_LAST_ACK,
.procname = "nf_conntrack_tcp_timeout_last_ack",
.data = &nf_ct_tcp_timeout_last_ack,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_TIME_WAIT,
.procname = "nf_conntrack_tcp_timeout_time_wait",
.data = &nf_ct_tcp_timeout_time_wait,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_CLOSE,
.procname = "nf_conntrack_tcp_timeout_close",
.data = &nf_ct_tcp_timeout_close,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_UDP_TIMEOUT,
.procname = "nf_conntrack_udp_timeout",
.data = &nf_ct_udp_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_UDP_TIMEOUT_STREAM,
.procname = "nf_conntrack_udp_timeout_stream",
.data = &nf_ct_udp_timeout_stream,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_GENERIC_TIMEOUT,
.procname = "nf_conntrack_generic_timeout",
.data = &nf_ct_generic_timeout,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_LOG_INVALID,
.procname = "nf_conntrack_log_invalid",
@ -490,38 +380,6 @@ static ctl_table nf_ct_sysctl_table[] = {
.extra1 = &log_invalid_proto_min,
.extra2 = &log_invalid_proto_max,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_TIMEOUT_MAX_RETRANS,
.procname = "nf_conntrack_tcp_timeout_max_retrans",
.data = &nf_ct_tcp_timeout_max_retrans,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec_jiffies,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_LOOSE,
.procname = "nf_conntrack_tcp_loose",
.data = &nf_ct_tcp_loose,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_BE_LIBERAL,
.procname = "nf_conntrack_tcp_be_liberal",
.data = &nf_ct_tcp_be_liberal,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{
.ctl_name = NET_NF_CONNTRACK_TCP_MAX_RETRANS,
.procname = "nf_conntrack_tcp_max_retrans",
.data = &nf_ct_tcp_max_retrans,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
},
{ .ctl_name = 0 }
};