[NETNS][FRAGS]: Make the net.ipv4.ipfrag_timeout work in namespaces.

Move it to the netns_frags, adjust the usage and
make the appropriate ctl table writable.

Now fragment, that live in different namespaces can
live for different times.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 5 insertions, 5 deletions

diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index cb826bea4b1b..92a311ff79c7 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -73,7 +73,6 @@ struct nf_ct_frag6_queue
 static struct inet_frags_ctl nf_frags_ctl __read_mostly = {
         .high_thresh     = 256 * 1024,
         .low_thresh      = 192 * 1024,
-        .timeout         = IPV6_FRAG_TIMEOUT,
         .secret_interval = 10 * 60 * HZ,
 };
 
@@ -84,7 +83,7 @@ static struct netns_frags nf_init_frags;
 struct ctl_table nf_ct_ipv6_sysctl_table[] = {
         {
                 .procname       = "nf_conntrack_frag6_timeout",
-                .data           = &nf_frags_ctl.timeout,
+                .data           = &nf_init_frags.timeout,
                 .maxlen         = sizeof(unsigned int),
                 .mode           = 0644,
                 .proc_handler   = &proc_dointvec_jiffies,
@@ -712,6 +711,7 @@ int nf_ct_frag6_init(void)
         nf_frags.qsize = sizeof(struct nf_ct_frag6_queue);
         nf_frags.match = ip6_frag_match;
         nf_frags.frag_expire = nf_ct_frag6_expire;
+        nf_init_frags.timeout = IPV6_FRAG_TIMEOUT;
         inet_frags_init_net(&nf_init_frags);
         inet_frags_init(&nf_frags);
 
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 0300dcbf1a75..91761365b181 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -650,7 +650,7 @@ static struct ctl_table ip6_frags_ctl_table[] = {
         {
                 .ctl_name       = NET_IPV6_IP6FRAG_TIME,
                 .procname       = "ip6frag_time",
-                .data           = &init_net.ipv6.sysctl.frags.timeout,
+                .data           = &init_net.ipv6.frags.timeout,
                 .maxlen         = sizeof(int),
                 .mode           = 0644,
                 .proc_handler   = &proc_dointvec_jiffies,
@@ -681,7 +681,7 @@ static int ip6_frags_sysctl_register(struct net *net)
 
                 table[0].mode &= ~0222;
                 table[1].mode &= ~0222;
-                table[2].mode &= ~0222;
+                table[2].data = &net->ipv6.frags.timeout;
                 table[3].mode &= ~0222;
         }
 
@@ -724,7 +724,7 @@ static int ipv6_frags_init_net(struct net *net)
 
         net->ipv6.sysctl.frags.high_thresh = 256 * 1024;
         net->ipv6.sysctl.frags.low_thresh = 192 * 1024;
-        net->ipv6.sysctl.frags.timeout = IPV6_FRAG_TIMEOUT;
+        net->ipv6.frags.timeout = IPV6_FRAG_TIMEOUT;
         net->ipv6.sysctl.frags.secret_interval = 10 * 60 * HZ;
 
         inet_frags_init_net(&net->ipv6.frags);