Signed-off-by: Nikolay Borisov <ker...@kyup.com>
---
include/linux/igmp.h | 1 -
include/net/netns/ipv4.h | 2 ++
net/ipv4/igmp.c | 4 +---
net/ipv4/sysctl_net_ipv4.c | 14 +++++++-------
net/ipv4/tcp_ipv4.c | 2 ++
5 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/include/linux/igmp.h b/include/linux/igmp.h
index 9c9de11549a7..57d6d06ce0b3 100644
--- a/include/linux/igmp.h
+++ b/include/linux/igmp.h
@@ -38,7 +38,6 @@ static inline struct igmpv3_query *
}
extern int sysctl_igmp_llm_reports;
-extern int sysctl_igmp_max_memberships;
extern int sysctl_igmp_max_msf;
extern int sysctl_igmp_qrv;
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 4d6ec3f6fafe..759cf624eec2 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -108,6 +108,8 @@ struct netns_ipv4 {
int sysctl_tcp_fin_timeout;
unsigned int sysctl_tcp_notsent_lowat;
+ int sysctl_igmp_max_memberships;
+
struct ping_group_range ping_group_range;
atomic_t dev_addr_genid;
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 0d381fa164f8..3e984d44295d 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2397,6 +2397,8 @@ 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);
--
2.5.0
