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-rw-r--r--net/ipv4/devinet.c7
-rw-r--r--net/ipv4/igmp.c2
-rw-r--r--net/ipv4/ipcomp.c6
-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
-rw-r--r--net/ipv4/tcp_input.c6
9 files changed, 26 insertions, 31 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 040c4f05b653..26dec2be9615 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1317,14 +1317,19 @@ static int devinet_sysctl_forward(ctl_table *ctl, int write,
{
int *valp = ctl->data;
int val = *valp;
+ loff_t pos = *ppos;
int ret = proc_dointvec(ctl, write, buffer, lenp, ppos);
if (write && *valp != val) {
struct net *net = ctl->extra2;
if (valp != &IPV4_DEVCONF_DFLT(net, FORWARDING)) {
- if (!rtnl_trylock())
+ if (!rtnl_trylock()) {
+ /* Restore the original values before restarting */
+ *valp = val;
+ *ppos = pos;
return restart_syscall();
+ }
if (valp == &IPV4_DEVCONF_ALL(net, FORWARDING)) {
inet_forward_change(net);
} else if (*valp) {
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 76c08402c933..a42f658e756a 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -946,7 +946,6 @@ int igmp_rcv(struct sk_buff *skb)
break;
case IGMP_HOST_MEMBERSHIP_REPORT:
case IGMPV2_HOST_MEMBERSHIP_REPORT:
- case IGMPV3_HOST_MEMBERSHIP_REPORT:
/* Is it our report looped back? */
if (skb_rtable(skb)->fl.iif == 0)
break;
@@ -960,6 +959,7 @@ int igmp_rcv(struct sk_buff *skb)
in_dev_put(in_dev);
return pim_rcv_v1(skb);
#endif
+ case IGMPV3_HOST_MEMBERSHIP_REPORT:
case IGMP_DVMRP:
case IGMP_TRACE:
case IGMP_HOST_LEAVE_MESSAGE:
diff --git a/net/ipv4/ipcomp.c b/net/ipv4/ipcomp.c
index 38fbf04150ae..544ce0876f12 100644
--- a/net/ipv4/ipcomp.c
+++ b/net/ipv4/ipcomp.c
@@ -124,16 +124,12 @@ static int ipcomp4_init_state(struct xfrm_state *x)
if (x->props.mode == XFRM_MODE_TUNNEL) {
err = ipcomp_tunnel_attach(x);
if (err)
- goto error_tunnel;
+ goto out;
}
err = 0;
out:
return err;
-
-error_tunnel:
- ipcomp_destroy(x);
- goto out;
}
static const struct xfrm_type ipcomp_type = {
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 06632762ba5f..90203e1b9187 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)
if (t && !IS_ERR(t)) {
struct arpt_getinfo info;
const struct xt_table_info *private = t->private;
-
#ifdef CONFIG_COMPAT
+ struct xt_table_info tmp;
+
if (compat) {
- struct xt_table_info tmp;
ret = compat_table_info(private, &tmp);
xt_compat_flush_offsets(NFPROTO_ARP);
private = &tmp;
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 572330a552ef..3ce53cf13d5a 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)
if (t && !IS_ERR(t)) {
struct ipt_getinfo info;
const struct xt_table_info *private = t->private;
-
#ifdef CONFIG_COMPAT
+ struct xt_table_info tmp;
+
if (compat) {
- struct xt_table_info tmp;
ret = compat_table_info(private, &tmp);
xt_compat_flush_offsets(AF_INET);
private = &tmp;
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index d171b123a656..d1ea38a7c490 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[] = {
},
{
.procname = "ip_conntrack_buckets",
- .data = &nf_conntrack_htable_size,
+ .data = &init_net.ct.htable_size,
.maxlen = sizeof(unsigned int),
.mode = 0444,
.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 8668a3defda6..2fb7b76da94f 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)
struct hlist_nulls_node *n;
for (st->bucket = 0;
- st->bucket < nf_conntrack_htable_size;
+ st->bucket < net->ct.htable_size;
st->bucket++) {
n = rcu_dereference(net->ct.hash[st->bucket].first);
if (!is_a_nulls(n))
@@ -50,7 +50,7 @@ static struct hlist_nulls_node *ct_get_next(struct seq_file *seq,
head = rcu_dereference(head->next);
while (is_a_nulls(head)) {
if (likely(get_nulls_value(head) == st->bucket)) {
- if (++st->bucket >= nf_conntrack_htable_size)
+ if (++st->bucket >= net->ct.htable_size)
return NULL;
}
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 fe1a64479dd0..26066a2327ad 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);
static struct nf_conntrack_l3proto *l3proto __read_mostly;
-/* Calculated at init based on memory size */
-static unsigned int nf_nat_htable_size __read_mostly;
-
#define MAX_IP_NAT_PROTO 256
static const struct nf_nat_protocol *nf_nat_protos[MAX_IP_NAT_PROTO]
__read_mostly;
@@ -72,7 +69,7 @@ EXPORT_SYMBOL_GPL(nf_nat_proto_put);
/* We keep an extra hash for each conntrack, for fast searching. */
static inline unsigned int
-hash_by_src(const struct nf_conntrack_tuple *tuple)
+hash_by_src(const struct net *net, const struct nf_conntrack_tuple *tuple)
{
unsigned int hash;
@@ -80,7 +77,7 @@ hash_by_src(const struct nf_conntrack_tuple *tuple)
hash = jhash_3words((__force u32)tuple->src.u3.ip,
(__force u32)tuple->src.u.all,
tuple->dst.protonum, 0);
- return ((u64)hash * nf_nat_htable_size) >> 32;
+ return ((u64)hash * net->ipv4.nat_htable_size) >> 32;
}
/* Is this tuple already taken? (not by us) */
@@ -147,7 +144,7 @@ find_appropriate_src(struct net *net,
struct nf_conntrack_tuple *result,
const struct nf_nat_range *range)
{
- unsigned int h = hash_by_src(tuple);
+ unsigned int h = hash_by_src(net, tuple);
const struct nf_conn_nat *nat;
const struct nf_conn *ct;
const struct hlist_node *n;
@@ -330,7 +327,7 @@ nf_nat_setup_info(struct nf_conn *ct,
if (have_to_hash) {
unsigned int srchash;
- srchash = hash_by_src(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
+ srchash = hash_by_src(net, &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
spin_lock_bh(&nf_nat_lock);
/* nf_conntrack_alter_reply might re-allocate exntension aera */
nat = nfct_nat(ct);
@@ -679,8 +676,10 @@ nfnetlink_parse_nat_setup(struct nf_conn *ct,
static int __net_init nf_nat_net_init(struct net *net)
{
- net->ipv4.nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size,
- &net->ipv4.nat_vmalloced, 0);
+ /* Leave them the same for the moment. */
+ net->ipv4.nat_htable_size = net->ct.htable_size;
+ net->ipv4.nat_bysource = nf_ct_alloc_hashtable(&net->ipv4.nat_htable_size,
+ &net->ipv4.nat_vmalloced, 0);
if (!net->ipv4.nat_bysource)
return -ENOMEM;
return 0;
@@ -703,7 +702,7 @@ static void __net_exit nf_nat_net_exit(struct net *net)
nf_ct_iterate_cleanup(net, &clean_nat, NULL);
synchronize_rcu();
nf_ct_free_hashtable(net->ipv4.nat_bysource, net->ipv4.nat_vmalloced,
- nf_nat_htable_size);
+ net->ipv4.nat_htable_size);
}
static struct pernet_operations nf_nat_net_ops = {
@@ -724,9 +723,6 @@ static int __init nf_nat_init(void)
return ret;
}
- /* Leave them the same for the moment. */
- nf_nat_htable_size = nf_conntrack_htable_size;
-
ret = register_pernet_subsys(&nf_nat_net_ops);
if (ret < 0)
goto cleanup_extend;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 28e029632493..3fddc69ccccc 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5783,11 +5783,9 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
/* tcp_ack considers this ACK as duplicate
* and does not calculate rtt.
- * Fix it at least with timestamps.
+ * Force it here.
*/
- if (tp->rx_opt.saw_tstamp &&
- tp->rx_opt.rcv_tsecr && !tp->srtt)
- tcp_ack_saw_tstamp(sk, 0);
+ tcp_ack_update_rtt(sk, 0, 0);
if (tp->rx_opt.tstamp_ok)
tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;