Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
---
include/net/netfilter/nf_conntrack_ecache.h | 27 +++++++++++++++++--------
include/net/netns/conntrack.h | 5 ++++
net/ipv4/netfilter/nf_conntrack_proto_icmp.c | 4 ++-
net/ipv4/netfilter/nf_nat_helper.c | 2 -
net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c | 4 ++-
net/netfilter/nf_conntrack_core.c | 23 +++++++++++++--------
net/netfilter/nf_conntrack_ecache.c | 26 +++++++++++++++++-------
net/netfilter/nf_conntrack_ftp.c | 9 ++++----
net/netfilter/nf_conntrack_proto_gre.c | 4 ++-
net/netfilter/nf_conntrack_proto_sctp.c | 5 ++--
net/netfilter/nf_conntrack_proto_tcp.c | 7 +++---
net/netfilter/nf_conntrack_proto_udp.c | 4 ++-
net/netfilter/nf_conntrack_proto_udplite.c | 4 ++-
net/netfilter/xt_CONNMARK.c | 12 +++++++----
net/netfilter/xt_CONNSECMARK.c | 3 --
15 files changed, 95 insertions(+), 44 deletions(-)
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -8,6 +8,7 @@
#include <linux/notifier.h>
#include <linux/interrupt.h>
+#include <net/net_namespace.h>
#include <net/netfilter/nf_conntrack_expect.h>
#ifdef CONFIG_NF_CONNTRACK_EVENTS
@@ -15,9 +16,6 @@ struct nf_conntrack_ecache {
struct nf_conn *ct;
unsigned int events;
};
-DECLARE_PER_CPU(struct nf_conntrack_ecache, nf_conntrack_ecache);
-
-#define CONNTRACK_ECACHE(x) (__get_cpu_var(nf_conntrack_ecache).x)
extern struct atomic_notifier_head nf_conntrack_chain;
extern int nf_conntrack_register_notifier(struct notifier_block *nb);
@@ -25,17 +23,17 @@ extern int nf_conntrack_unregister_notifier(struct notifier_block *nb);
extern void nf_ct_deliver_cached_events(const struct nf_conn *ct);
extern void __nf_ct_event_cache_init(struct nf_conn *ct);
-extern void nf_ct_event_cache_flush(void);
+extern void nf_ct_event_cache_flush(struct net *net);
static inline void
-nf_conntrack_event_cache(enum ip_conntrack_events event,
+nf_conntrack_event_cache(struct net *net, enum ip_conntrack_events event,
const struct sk_buff *skb)
{
struct nf_conn *ct = (struct nf_conn *)skb->nfct;
struct nf_conntrack_ecache *ecache;
local_bh_disable();
- ecache = &__get_cpu_var(nf_conntrack_ecache);
+ ecache = per_cpu_ptr(net->ct.ecache, raw_smp_processor_id());
if (ct != ecache->ct)
__nf_ct_event_cache_init(ct);
ecache->events |= event;
@@ -60,16 +58,29 @@ nf_ct_expect_event(enum ip_conntrack_expect_events event,
atomic_notifier_call_chain(&nf_ct_expect_chain, event, exp);
}
+int nf_conntrack_ecache_init(struct net *net);
+void nf_conntrack_ecache_fini(struct net *net);
+
#else /* CONFIG_NF_CONNTRACK_EVENTS */
-static inline void nf_conntrack_event_cache(enum ip_conntrack_events event,
+static inline void nf_conntrack_event_cache(struct net *net,
+ enum ip_conntrack_events event,
const struct sk_buff *skb) {}
static inline void nf_conntrack_event(enum ip_conntrack_events event,
struct nf_conn *ct) {}
static inline void nf_ct_deliver_cached_events(const struct nf_conn *ct) {}
static inline void nf_ct_expect_event(enum ip_conntrack_expect_events event,
struct nf_conntrack_expect *exp) {}
-static inline void nf_ct_event_cache_flush(void) {}
+static inline void nf_ct_event_cache_flush(struct net *net) {}
+
+static inline int nf_conntrack_ecache_init(struct net *net)
+{
+ return 0;
+}
+
+static inline void nf_conntrack_ecache_fini(struct net *net)
+{
+}
#endif /* CONFIG_NF_CONNTRACK_EVENTS */
#endif /*_NF_CONNTRACK_ECACHE_H*/
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -5,6 +5,8 @@
#include <asm/atomic.h>
#include <net/netfilter/nf_conntrack.h>
+struct nf_conntrack_ecache;
+
struct netns_ct {
atomic_t count;
struct hlist_head *hash;
@@ -15,5 +17,8 @@ struct netns_ct {
struct hlist_head unconfirmed;
/* Fake conntrack entry for untracked connections */
struct nf_conn untracked;
+#ifdef CONFIG_NF_CONNTRACK_EVENTS
+ struct nf_conntrack_ecache *ecache;
+#endif
};
#endif
--- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c
@@ -82,6 +82,8 @@ static int icmp_packet(struct nf_conn *ct,
int pf,
unsigned int hooknum)
{
+ struct net *net = nf_ct_net(ct);
+
/* Try to delete connection immediately after all replies:
won't actually vanish as we still have skb, and del_timer
means this will only run once even if count hits zero twice
@@ -91,7 +93,7 @@ static int icmp_packet(struct nf_conn *ct,
nf_ct_kill_acct(ct, ctinfo, skb);
} else {
atomic_inc(&ct->proto.icmp.count);
- nf_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, skb);
+ nf_conntrack_event_cache(net, IPCT_PROTOINFO_VOLATILE, skb);
nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmp_timeout);
}
--- a/net/ipv4/netfilter/nf_nat_helper.c
+++ b/net/ipv4/netfilter/nf_nat_helper.c
@@ -192,7 +192,7 @@ nf_nat_mangle_tcp_packet(struct sk_buff *skb,
nf_conntrack_tcp_update(skb, ip_hdrlen(skb),
ct, CTINFO2DIR(ctinfo));
- nf_conntrack_event_cache(IPCT_NATSEQADJ, skb);
+ nf_conntrack_event_cache(nf_ct_net(ct), IPCT_NATSEQADJ, skb);
}
return 1;
}
--- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c
@@ -84,6 +84,8 @@ static int icmpv6_packet(struct nf_conn *ct,
int pf,
unsigned int hooknum)
{
+ struct net *net = nf_ct_net(ct);
+
/* Try to delete connection immediately after all replies:
won't actually vanish as we still have skb, and del_timer
means this will only run once even if count hits zero twice
@@ -93,7 +95,7 @@ static int icmpv6_packet(struct nf_conn *ct,
nf_ct_kill_acct(ct, ctinfo, skb);
} else {
atomic_inc(&ct->proto.icmp.count);
- nf_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, skb);
+ nf_conntrack_event_cache(net, IPCT_PROTOINFO_VOLATILE, skb);
nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_icmpv6_timeout);
}
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -367,13 +367,13 @@ __nf_conntrack_confirm(struct sk_buff *skb)
spin_unlock_bh(&nf_conntrack_lock);
help = nfct_help(ct);
if (help && help->helper)
- nf_conntrack_event_cache(IPCT_HELPER, skb);
+ nf_conntrack_event_cache(net, IPCT_HELPER, skb);
#ifdef CONFIG_NF_NAT_NEEDED
if (test_bit(IPS_SRC_NAT_DONE_BIT, &ct->status) ||
test_bit(IPS_DST_NAT_DONE_BIT, &ct->status))
- nf_conntrack_event_cache(IPCT_NATINFO, skb);
+ nf_conntrack_event_cache(net, IPCT_NATINFO, skb);
#endif
- nf_conntrack_event_cache(master_ct(ct) ?
+ nf_conntrack_event_cache(net, master_ct(ct) ?
IPCT_RELATED : IPCT_NEW, skb);
return NF_ACCEPT;
@@ -732,7 +732,7 @@ nf_conntrack_in(struct net *net, int pf, unsigned int hooknum, struct sk_buff *s
}
if (set_reply && !test_and_set_bit(IPS_SEEN_REPLY_BIT, &ct->status))
- nf_conntrack_event_cache(IPCT_STATUS, skb);
+ nf_conntrack_event_cache(net, IPCT_STATUS, skb);
return ret;
}
@@ -800,6 +800,7 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
unsigned long extra_jiffies,
int do_acct)
{
+ struct net *net = nf_ct_net(ct);
int event = 0;
NF_CT_ASSERT(ct->timeout.data == (unsigned long)ct);
@@ -845,7 +846,7 @@ acct:
/* must be unlocked when calling event cache */
if (event)
- nf_conntrack_event_cache(event, skb);
+ nf_conntrack_event_cache(net, event, skb);
}
EXPORT_SYMBOL_GPL(__nf_ct_refresh_acct);
@@ -1014,7 +1015,8 @@ void nf_conntrack_cleanup(struct net *net)
delete... */
synchronize_net();
- nf_ct_event_cache_flush();
+ nf_ct_event_cache_flush(net);
+ nf_conntrack_ecache_fini(net);
i_see_dead_people:
nf_conntrack_flush(net);
if (atomic_read(&net->ct.count) != 0) {
@@ -1142,11 +1144,14 @@ int nf_conntrack_init(struct net *net)
max_factor = 4;
}
atomic_set(&net->ct.count, 0);
+ ret = nf_conntrack_ecache_init(net);
+ if (ret < 0)
+ goto err_ecache;
net->ct.hash = nf_ct_alloc_hashtable(&nf_conntrack_htable_size,
&net->ct.hash_vmalloc);
if (!net->ct.hash) {
printk(KERN_ERR "Unable to create nf_conntrack_hash\n");
- goto err_out;
+ goto err_hash;
}
INIT_HLIST_HEAD(&net->ct.unconfirmed);
@@ -1206,6 +1211,8 @@ err_free_conntrack_slab:
err_free_hash:
nf_ct_free_hashtable(net->ct.hash, net->ct.hash_vmalloc,
nf_conntrack_htable_size);
-err_out:
+err_hash:
+ nf_conntrack_ecache_fini(net);
+err_ecache:
return -ENOMEM;
}
--- a/net/netfilter/nf_conntrack_ecache.c
+++ b/net/netfilter/nf_conntrack_ecache.c
@@ -29,9 +29,6 @@ EXPORT_SYMBOL_GPL(nf_conntrack_chain);
ATOMIC_NOTIFIER_HEAD(nf_ct_expect_chain);
EXPORT_SYMBOL_GPL(nf_ct_expect_chain);
-DEFINE_PER_CPU(struct nf_conntrack_ecache, nf_conntrack_ecache);
-EXPORT_PER_CPU_SYMBOL_GPL(nf_conntrack_ecache);
-
/* deliver cached events and clear cache entry - must be called with locally
* disabled softirqs */
static inline void
@@ -51,10 +48,11 @@ __nf_ct_deliver_cached_events(struct nf_conntrack_ecache *ecache)
* by code prior to async packet handling for freeing the skb */
void nf_ct_deliver_cached_events(const struct nf_conn *ct)
{
+ struct net *net = nf_ct_net(ct);
struct nf_conntrack_ecache *ecache;
local_bh_disable();
- ecache = &__get_cpu_var(nf_conntrack_ecache);
+ ecache = per_cpu_ptr(net->ct.ecache, raw_smp_processor_id());
if (ecache->ct == ct)
__nf_ct_deliver_cached_events(ecache);
local_bh_enable();
@@ -64,10 +62,11 @@ EXPORT_SYMBOL_GPL(nf_ct_deliver_cached_events);
/* Deliver cached events for old pending events, if current conntrack != old */
void __nf_ct_event_cache_init(struct nf_conn *ct)
{
+ struct net *net = nf_ct_net(ct);
struct nf_conntrack_ecache *ecache;
/* take care of delivering potentially old events */
- ecache = &__get_cpu_var(nf_conntrack_ecache);
+ ecache = per_cpu_ptr(net->ct.ecache, raw_smp_processor_id());
BUG_ON(ecache->ct == ct);
if (ecache->ct)
__nf_ct_deliver_cached_events(ecache);
@@ -79,18 +78,31 @@ EXPORT_SYMBOL_GPL(__nf_ct_event_cache_init);
/* flush the event cache - touches other CPU's data and must not be called
* while packets are still passing through the code */
-void nf_ct_event_cache_flush(void)
+void nf_ct_event_cache_flush(struct net *net)
{
struct nf_conntrack_ecache *ecache;
int cpu;
for_each_possible_cpu(cpu) {
- ecache = &per_cpu(nf_conntrack_ecache, cpu);
+ ecache = per_cpu_ptr(net->ct.ecache, cpu);
if (ecache->ct)
nf_ct_put(ecache->ct);
}
}
+int nf_conntrack_ecache_init(struct net *net)
+{
+ net->ct.ecache = alloc_percpu(struct nf_conntrack_ecache);
+ if (!net->ct.ecache)
+ return -ENOMEM;
+ return 0;
+}
+
+void nf_conntrack_ecache_fini(struct net *net)
+{
+ free_percpu(net->ct.ecache);
+}
+
int nf_conntrack_register_notifier(struct notifier_block *nb)
{
return atomic_notifier_chain_register(&nf_conntrack_chain, nb);
--- a/net/netfilter/nf_conntrack_ftp.c
+++ b/net/netfilter/nf_conntrack_ftp.c
@@ -318,7 +318,8 @@ static int find_nl_seq(u32 seq, const struct nf_ct_ftp_master *info, int dir)
}
/* We don't update if it's older than what we have. */
-static void update_nl_seq(u32 nl_seq, struct nf_ct_ftp_master *info, int dir,
+static void update_nl_seq(struct net *net, u32 nl_seq,
+ struct nf_ct_ftp_master *info, int dir,
struct sk_buff *skb)
{
unsigned int i, oldest = NUM_SEQ_TO_REMEMBER;
@@ -336,11 +337,11 @@ static void update_nl_seq(u32 nl_seq, struct nf_ct_ftp_master *info, int dir,
if (info->seq_aft_nl_num[dir] < NUM_SEQ_TO_REMEMBER) {
info->seq_aft_nl[dir][info->seq_aft_nl_num[dir]++] = nl_seq;
- nf_conntrack_event_cache(IPCT_HELPINFO_VOLATILE, skb);
+ nf_conntrack_event_cache(net, IPCT_HELPINFO_VOLATILE, skb);
} else if (oldest != NUM_SEQ_TO_REMEMBER &&
after(nl_seq, info->seq_aft_nl[dir][oldest])) {
info->seq_aft_nl[dir][oldest] = nl_seq;
- nf_conntrack_event_cache(IPCT_HELPINFO_VOLATILE, skb);
+ nf_conntrack_event_cache(net, IPCT_HELPINFO_VOLATILE, skb);
}
}
@@ -509,7 +510,7 @@ out_update_nl:
/* Now if this ends in \n, update ftp info. Seq may have been
* adjusted by NAT code. */
if (ends_in_nl)
- update_nl_seq(seq, ct_ftp_info, dir, skb);
+ update_nl_seq(nf_ct_net(ct), seq, ct_ftp_info, dir, skb);
out:
spin_unlock_bh(&nf_ftp_lock);
return ret;
--- a/net/netfilter/nf_conntrack_proto_gre.c
+++ b/net/netfilter/nf_conntrack_proto_gre.c
@@ -222,6 +222,8 @@ static int gre_packet(struct nf_conn *ct,
int pf,
unsigned int hooknum)
{
+ struct net *net = nf_ct_net(ct);
+
/* If we've seen traffic both ways, this is a GRE connection.
* Extend timeout. */
if (ct->status & IPS_SEEN_REPLY) {
@@ -229,7 +231,7 @@ static int gre_packet(struct nf_conn *ct,
ct->proto.gre.stream_timeout);
/* Also, more likely to be important, and not a probe. */
set_bit(IPS_ASSURED_BIT, &ct->status);
- nf_conntrack_event_cache(IPCT_STATUS, skb);
+ nf_conntrack_event_cache(net, IPCT_STATUS, skb);
} else
nf_ct_refresh_acct(ct, ctinfo, skb,
ct->proto.gre.timeout);
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -290,6 +290,7 @@ static int sctp_packet(struct nf_conn *ct,
int pf,
unsigned int hooknum)
{
+ struct net *net = nf_ct_net(ct);
enum sctp_conntrack new_state, old_state;
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
const struct sctphdr *sh;
@@ -369,7 +370,7 @@ static int sctp_packet(struct nf_conn *ct,
ct->proto.sctp.state = new_state;
if (old_state != new_state)
- nf_conntrack_event_cache(IPCT_PROTOINFO, skb);
+ nf_conntrack_event_cache(net, IPCT_PROTOINFO, skb);
}
write_unlock_bh(&sctp_lock);
@@ -380,7 +381,7 @@ static int sctp_packet(struct nf_conn *ct,
new_state == SCTP_CONNTRACK_ESTABLISHED) {
pr_debug("Setting assured bit\n");
set_bit(IPS_ASSURED_BIT, &ct->status);
- nf_conntrack_event_cache(IPCT_STATUS, skb);
+ nf_conntrack_event_cache(net, IPCT_STATUS, skb);
}
return NF_ACCEPT;
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -807,6 +807,7 @@ static int tcp_packet(struct nf_conn *ct,
int pf,
unsigned int hooknum)
{
+ struct net *net = nf_ct_net(ct);
struct nf_conntrack_tuple *tuple;
enum tcp_conntrack new_state, old_state;
enum ip_conntrack_dir dir;
@@ -968,9 +969,9 @@ static int tcp_packet(struct nf_conn *ct,
timeout = tcp_timeouts[new_state];
write_unlock_bh(&tcp_lock);
- nf_conntrack_event_cache(IPCT_PROTOINFO_VOLATILE, skb);
+ nf_conntrack_event_cache(net, IPCT_PROTOINFO_VOLATILE, skb);
if (new_state != old_state)
- nf_conntrack_event_cache(IPCT_PROTOINFO, skb);
+ nf_conntrack_event_cache(net, IPCT_PROTOINFO, skb);
if (!test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
/* If only reply is a RST, we can consider ourselves not to
@@ -989,7 +990,7 @@ static int tcp_packet(struct nf_conn *ct,
after SYN_RECV or a valid answer for a picked up
connection. */
set_bit(IPS_ASSURED_BIT, &ct->status);
- nf_conntrack_event_cache(IPCT_STATUS, skb);
+ nf_conntrack_event_cache(net, IPCT_STATUS, skb);
}
nf_ct_refresh_acct(ct, ctinfo, skb, timeout);
--- a/net/netfilter/nf_conntrack_proto_udp.c
+++ b/net/netfilter/nf_conntrack_proto_udp.c
@@ -69,13 +69,15 @@ static int udp_packet(struct nf_conn *ct,
int pf,
unsigned int hooknum)
{
+ struct net *net = nf_ct_net(ct);
+
/* If we've seen traffic both ways, this is some kind of UDP
stream. Extend timeout. */
if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_udp_timeout_stream);
/* Also, more likely to be important, and not a probe */
if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
- nf_conntrack_event_cache(IPCT_STATUS, skb);
+ nf_conntrack_event_cache(net, IPCT_STATUS, skb);
} else
nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_udp_timeout);
--- a/net/netfilter/nf_conntrack_proto_udplite.c
+++ b/net/netfilter/nf_conntrack_proto_udplite.c
@@ -68,6 +68,8 @@ static int udplite_packet(struct nf_conn *ct,
int pf,
unsigned int hooknum)
{
+ struct net *net = nf_ct_net(ct);
+
/* If we've seen traffic both ways, this is some kind of UDP
stream. Extend timeout. */
if (test_bit(IPS_SEEN_REPLY_BIT, &ct->status)) {
@@ -75,7 +77,7 @@ static int udplite_packet(struct nf_conn *ct,
nf_ct_udplite_timeout_stream);
/* Also, more likely to be important, and not a probe */
if (!test_and_set_bit(IPS_ASSURED_BIT, &ct->status))
- nf_conntrack_event_cache(IPCT_STATUS, skb);
+ nf_conntrack_event_cache(net, IPCT_STATUS, skb);
} else
nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_udplite_timeout);
--- a/net/netfilter/xt_CONNMARK.c
+++ b/net/netfilter/xt_CONNMARK.c
@@ -49,12 +49,14 @@ connmark_tg_v0(struct sk_buff *skb, const struct net_device *in,
ct = nf_ct_get(skb, &ctinfo);
if (ct) {
+ struct net *net = nf_ct_net(ct);
+
switch(markinfo->mode) {
case XT_CONNMARK_SET:
newmark = (ct->mark & ~markinfo->mask) | markinfo->mark;
if (newmark != ct->mark) {
ct->mark = newmark;
- nf_conntrack_event_cache(IPCT_MARK, skb);
+ nf_conntrack_event_cache(net, IPCT_MARK, skb);
}
break;
case XT_CONNMARK_SAVE:
@@ -62,7 +64,7 @@ connmark_tg_v0(struct sk_buff *skb, const struct net_device *in,
(skb->mark & markinfo->mask);
if (ct->mark != newmark) {
ct->mark = newmark;
- nf_conntrack_event_cache(IPCT_MARK, skb);
+ nf_conntrack_event_cache(net, IPCT_MARK, skb);
}
break;
case XT_CONNMARK_RESTORE:
@@ -84,18 +86,20 @@ connmark_tg(struct sk_buff *skb, const struct net_device *in,
const struct xt_connmark_tginfo1 *info = targinfo;
enum ip_conntrack_info ctinfo;
struct nf_conn *ct;
+ struct net *net;
u_int32_t newmark;
ct = nf_ct_get(skb, &ctinfo);
if (ct == NULL)
return XT_CONTINUE;
+ net = nf_ct_net(ct);
switch (info->mode) {
case XT_CONNMARK_SET:
newmark = (ct->mark & ~info->ctmask) ^ info->ctmark;
if (ct->mark != newmark) {
ct->mark = newmark;
- nf_conntrack_event_cache(IPCT_MARK, skb);
+ nf_conntrack_event_cache(net, IPCT_MARK, skb);
}
break;
case XT_CONNMARK_SAVE:
@@ -103,7 +107,7 @@ connmark_tg(struct sk_buff *skb, const struct net_device *in,
(skb->mark & info->nfmask);
if (ct->mark != newmark) {
ct->mark = newmark;
- nf_conntrack_event_cache(IPCT_MARK, skb);
+ nf_conntrack_event_cache(net, IPCT_MARK, skb);
}
break;
case XT_CONNMARK_RESTORE:
--- a/net/netfilter/xt_CONNSECMARK.c
+++ b/net/netfilter/xt_CONNSECMARK.c
@@ -43,7 +43,7 @@ static void secmark_save(const struct sk_buff *skb)
ct = nf_ct_get(skb, &ctinfo);
if (ct && !ct->secmark) {
ct->secmark = skb->secmark;
- nf_conntrack_event_cache(IPCT_SECMARK, skb);
+ nf_conntrack_event_cache(nf_ct_net(ct), IPCT_SECMARK, skb);
}
}
}
--
1.5.6.3
--
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