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authorNikolay Borisov <kernel@kyup.com>2016-02-08 23:29:21 +0200
committerDavid S. Miller <davem@davemloft.net>2016-02-11 09:59:22 -0500
commit815c52700746cdcc0874a33390bac334a4b90107 (patch)
treee86fbed48c0f3aaa29532d979d4013945ae8b4b0 /net
parent1e2a8868e0541b7d8870781b714d74ac7cad9a6a (diff)
igmp: Namespaceify igmp_max_memberships sysctl knob
Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/ipv4/igmp.c4
-rw-r--r--net/ipv4/sysctl_net_ipv4.c14
-rw-r--r--net/ipv4/tcp_ipv4.c2
3 files changed, 10 insertions, 10 deletions
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 05e4cba14162..5b86257c9d6b 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -107,7 +107,6 @@
#include <linux/seq_file.h>
#endif
-#define IP_MAX_MEMBERSHIPS 20
#define IP_MAX_MSF 10
/* IGMP reports for link-local multicast groups are enabled by default */
@@ -1727,7 +1726,6 @@ static struct in_device *ip_mc_find_dev(struct net *net, struct ip_mreqn *imr)
/*
* Join a socket to a group
*/
-int sysctl_igmp_max_memberships __read_mostly = IP_MAX_MEMBERSHIPS;
int sysctl_igmp_max_msf __read_mostly = IP_MAX_MSF;
#ifdef CONFIG_IP_MULTICAST
int sysctl_igmp_qrv __read_mostly = IGMP_QUERY_ROBUSTNESS_VARIABLE;
@@ -2074,7 +2072,7 @@ int ip_mc_join_group(struct sock *sk, struct ip_mreqn *imr)
count++;
}
err = -ENOBUFS;
- if (count >= sysctl_igmp_max_memberships)
+ if (count >= net->ipv4.sysctl_igmp_max_memberships)
goto done;
iml = sock_kmalloc(sk, sizeof(*iml), GFP_KERNEL);
if (!iml)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 44bb59824267..6ea3dbb96db4 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -368,13 +368,6 @@ static struct ctl_table ipv4_table[] = {
.proc_handler = proc_dointvec
},
{
- .procname = "igmp_max_memberships",
- .data = &sysctl_igmp_max_memberships,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec
- },
- {
.procname = "igmp_max_msf",
.data = &sysctl_igmp_max_msf,
.maxlen = sizeof(int),
@@ -872,6 +865,13 @@ static struct ctl_table ipv4_net_table[] = {
.proc_handler = proc_dointvec
},
{
+ .procname = "igmp_max_memberships",
+ .data = &init_net.ipv4.sysctl_igmp_max_memberships,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec
+ },
+ {
.procname = "tcp_keepalive_time",
.data = &init_net.ipv4.sysctl_tcp_keepalive_time,
.maxlen = sizeof(int),
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 3f872a6bc274..4b203789900b 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2399,6 +2399,8 @@ static int __net_init tcp_sk_init(struct net *net)
net->ipv4.sysctl_tcp_fin_timeout = TCP_FIN_TIMEOUT;
net->ipv4.sysctl_tcp_notsent_lowat = UINT_MAX;
+ net->ipv4.sysctl_igmp_max_memberships = 20;
+
return 0;
fail:
tcp_sk_exit(net);