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authorDavid S. Miller <davem@davemloft.net>2010-02-09 14:44:44 -0500
committerDavid S. Miller <davem@davemloft.net>2010-02-09 14:44:44 -0500
commitb1109bf085c8dd69537b7876ea83f914dd1fe46a (patch)
tree086bd9891a8c92284ea148c93f2242e6c7c02bd2 /net/ipv4
parent889b8f964f2f226b7cd5a0a515109e3d8d9d1613 (diff)
parent44bfce5c3ec91baf8ffcd075c66711740f29a949 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/arp_tables.c4
-rw-r--r--net/ipv4/netfilter/ip_tables.c4
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c2
-rw-r--r--net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c4
-rw-r--r--net/ipv4/netfilter/nf_nat_core.c22
5 files changed, 16 insertions, 20 deletions
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 06632762ba5..90203e1b918 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -925,10 +925,10 @@ static int get_info(struct net *net, void __user *user, int *len, int compat)
925 if (t && !IS_ERR(t)) { 925 if (t && !IS_ERR(t)) {
926 struct arpt_getinfo info; 926 struct arpt_getinfo info;
927 const struct xt_table_info *private = t->private; 927 const struct xt_table_info *private = t->private;
928
929#ifdef CONFIG_COMPAT 928#ifdef CONFIG_COMPAT
929 struct xt_table_info tmp;
930
930 if (compat) { 931 if (compat) {
931 struct xt_table_info tmp;
932 ret = compat_table_info(private, &tmp); 932 ret = compat_table_info(private, &tmp);
933 xt_compat_flush_offsets(NFPROTO_ARP); 933 xt_compat_flush_offsets(NFPROTO_ARP);
934 private = &tmp; 934 private = &tmp;
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 572330a552e..3ce53cf13d5 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1132,10 +1132,10 @@ static int get_info(struct net *net, void __user *user, int *len, int compat)
1132 if (t && !IS_ERR(t)) { 1132 if (t && !IS_ERR(t)) {
1133 struct ipt_getinfo info; 1133 struct ipt_getinfo info;
1134 const struct xt_table_info *private = t->private; 1134 const struct xt_table_info *private = t->private;
1135
1136#ifdef CONFIG_COMPAT 1135#ifdef CONFIG_COMPAT
1136 struct xt_table_info tmp;
1137
1137 if (compat) { 1138 if (compat) {
1138 struct xt_table_info tmp;
1139 ret = compat_table_info(private, &tmp); 1139 ret = compat_table_info(private, &tmp);
1140 xt_compat_flush_offsets(AF_INET); 1140 xt_compat_flush_offsets(AF_INET);
1141 private = &tmp; 1141 private = &tmp;
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index d171b123a65..d1ea38a7c49 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -210,7 +210,7 @@ static ctl_table ip_ct_sysctl_table[] = {
210 }, 210 },
211 { 211 {
212 .procname = "ip_conntrack_buckets", 212 .procname = "ip_conntrack_buckets",
213 .data = &nf_conntrack_htable_size, 213 .data = &init_net.ct.htable_size,
214 .maxlen = sizeof(unsigned int), 214 .maxlen = sizeof(unsigned int),
215 .mode = 0444, 215 .mode = 0444,
216 .proc_handler = proc_dointvec, 216 .proc_handler = proc_dointvec,
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
index 8668a3defda..2fb7b76da94 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4_compat.c
@@ -32,7 +32,7 @@ static struct hlist_nulls_node *ct_get_first(struct seq_file *seq)
32 struct hlist_nulls_node *n; 32 struct hlist_nulls_node *n;
33 33
34 for (st->bucket = 0; 34 for (st->bucket = 0;
35 st->bucket < nf_conntrack_htable_size; 35 st->bucket < net->ct.htable_size;
36 st->bucket++) { 36 st->bucket++) {
37 n = rcu_dereference(net->ct.hash[st->bucket].first); 37 n = rcu_dereference(net->ct.hash[st->bucket].first);
38 if (!is_a_nulls(n)) 38 if (!is_a_nulls(n))
@@ -50,7 +50,7 @@ static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
50 head = rcu_dereference(head->next); 50 head = rcu_dereference(head->next);
51 while (is_a_nulls(head)) { 51 while (is_a_nulls(head)) {
52 if (likely(get_nulls_value(head) == st->bucket)) { 52 if (likely(get_nulls_value(head) == st->bucket)) {
53 if (++st->bucket >= nf_conntrack_htable_size) 53 if (++st->bucket >= net->ct.htable_size)
54 return NULL; 54 return NULL;
55 } 55 }
56 head = rcu_dereference(net->ct.hash[st->bucket].first); 56 head = rcu_dereference(net->ct.hash[st->bucket].first);
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c
index fe1a64479dd..26066a2327a 100644
--- a/net/ipv4/netfilter/nf_nat_core.c
+++ b/net/ipv4/netfilter/nf_nat_core.c
@@ -35,9 +35,6 @@ static DEFINE_SPINLOCK(nf_nat_lock);
35 35
36static struct nf_conntrack_l3proto *l3proto __read_mostly; 36static struct nf_conntrack_l3proto *l3proto __read_mostly;
37 37
38/* Calculated at init based on memory size */
39static unsigned int nf_nat_htable_size __read_mostly;
40
41#define MAX_IP_NAT_PROTO 256 38#define MAX_IP_NAT_PROTO 256
42static const struct nf_nat_protocol *nf_nat_protos[MAX_IP_NAT_PROTO] 39static const struct nf_nat_protocol *nf_nat_protos[MAX_IP_NAT_PROTO]
43 __read_mostly; 40 __read_mostly;
@@ -72,7 +69,7 @@ EXPORT_SYMBOL_GPL(nf_nat_proto_put);
72 69
73/* We keep an extra hash for each conntrack, for fast searching. */ 70/* We keep an extra hash for each conntrack, for fast searching. */
74static inline unsigned int 71static inline unsigned int
75hash_by_src(const struct nf_conntrack_tuple *tuple) 72hash_by_src(const struct net *net, const struct nf_conntrack_tuple *tuple)
76{ 73{
77 unsigned int hash; 74 unsigned int hash;
78 75
@@ -80,7 +77,7 @@ hash_by_src(const struct nf_conntrack_tuple *tuple)
80 hash = jhash_3words((__force u32)tuple->src.u3.ip, 77 hash = jhash_3words((__force u32)tuple->src.u3.ip,
81 (__force u32)tuple->src.u.all, 78 (__force u32)tuple->src.u.all,
82 tuple->dst.protonum, 0); 79 tuple->dst.protonum, 0);
83 return ((u64)hash * nf_nat_htable_size) >> 32; 80 return ((u64)hash * net->ipv4.nat_htable_size) >> 32;
84} 81}
85 82
86/* Is this tuple already taken? (not by us) */ 83/* Is this tuple already taken? (not by us) */
@@ -147,7 +144,7 @@ find_appropriate_src(struct net *net,
147 struct nf_conntrack_tuple *result, 144 struct nf_conntrack_tuple *result,
148 const struct nf_nat_range *range) 145 const struct nf_nat_range *range)
149{ 146{
150 unsigned int h = hash_by_src(tuple); 147 unsigned int h = hash_by_src(net, tuple);
151 const struct nf_conn_nat *nat; 148 const struct nf_conn_nat *nat;
152 const struct nf_conn *ct; 149 const struct nf_conn *ct;
153 const struct hlist_node *n; 150 const struct hlist_node *n;
@@ -330,7 +327,7 @@ nf_nat_setup_info(struct nf_conn *ct,
330 if (have_to_hash) { 327 if (have_to_hash) {
331 unsigned int srchash; 328 unsigned int srchash;
332 329
333 srchash = hash_by_src(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple); 330 srchash = hash_by_src(net, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
334 spin_lock_bh(&nf_nat_lock); 331 spin_lock_bh(&nf_nat_lock);
335 /* nf_conntrack_alter_reply might re-allocate exntension aera */ 332 /* nf_conntrack_alter_reply might re-allocate exntension aera */
336 nat = nfct_nat(ct); 333 nat = nfct_nat(ct);
@@ -679,8 +676,10 @@ nfnetlink_parse_nat_setup(struct nf_conn *ct,
679 676
680static int __net_init nf_nat_net_init(struct net *net) 677static int __net_init nf_nat_net_init(struct net *net)
681{ 678{
682 net->ipv4.nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size, 679 /* Leave them the same for the moment. */
683 &net->ipv4.nat_vmalloced, 0); 680 net->ipv4.nat_htable_size = net->ct.htable_size;
681 net->ipv4.nat_bysource = nf_ct_alloc_hashtable(&net->ipv4.nat_htable_size,
682 &net->ipv4.nat_vmalloced, 0);
684 if (!net->ipv4.nat_bysource) 683 if (!net->ipv4.nat_bysource)
685 return -ENOMEM; 684 return -ENOMEM;
686 return 0; 685 return 0;
@@ -703,7 +702,7 @@ static void __net_exit nf_nat_net_exit(struct net *net)
703 nf_ct_iterate_cleanup(net, &clean_nat, NULL); 702 nf_ct_iterate_cleanup(net, &clean_nat, NULL);
704 synchronize_rcu(); 703 synchronize_rcu();
705 nf_ct_free_hashtable(net->ipv4.nat_bysource, net->ipv4.nat_vmalloced, 704 nf_ct_free_hashtable(net->ipv4.nat_bysource, net->ipv4.nat_vmalloced,
706 nf_nat_htable_size); 705 net->ipv4.nat_htable_size);
707} 706}
708 707
709static struct pernet_operations nf_nat_net_ops = { 708static struct pernet_operations nf_nat_net_ops = {
@@ -724,9 +723,6 @@ static int __init nf_nat_init(void)
724 return ret; 723 return ret;
725 } 724 }
726 725
727 /* Leave them the same for the moment. */
728 nf_nat_htable_size = nf_conntrack_htable_size;
729
730 ret = register_pernet_subsys(&nf_nat_net_ops); 726 ret = register_pernet_subsys(&nf_nat_net_ops);
731 if (ret < 0) 727 if (ret < 0)
732 goto cleanup_extend; 728 goto cleanup_extend;