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Date: Sat, 2 Apr 2011 04:53:22 +0200
From: Lucian Adrian Grijincu <lucian.grijincu@...il.com>
To: "'David S . Miller'" <davem@...emloft.net>,
Alexey Dobriyan <adobriyan@...il.com>,
"Eric W . Biederman" <ebiederm@...ssion.com>,
Octavian Purdila <tavi@...pub.ro>,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Cc: Lucian Adrian Grijincu <lucian.grijincu@...il.com>
Subject: [PATCH 08/24] sysctl: cookie: share ipv4_net_table between nets
Signed-off-by: Lucian Adrian Grijincu <lucian.grijincu@...il.com>
---
net/ipv4/sysctl_net_ipv4.c | 53 +++++++------------------------------------
1 files changed, 9 insertions(+), 44 deletions(-)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 1766d2e..b7b8dbd 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -635,49 +635,49 @@ static struct ctl_table ipv4_net_table[] = {
.data = &init_net.ipv4.sysctl_icmp_echo_ignore_all,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = netns_proc_dointvec,
},
{
.procname = "icmp_echo_ignore_broadcasts",
.data = &init_net.ipv4.sysctl_icmp_echo_ignore_broadcasts,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = netns_proc_dointvec,
},
{
.procname = "icmp_ignore_bogus_error_responses",
.data = &init_net.ipv4.sysctl_icmp_ignore_bogus_error_responses,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = netns_proc_dointvec,
},
{
.procname = "icmp_errors_use_inbound_ifaddr",
.data = &init_net.ipv4.sysctl_icmp_errors_use_inbound_ifaddr,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = netns_proc_dointvec,
},
{
.procname = "icmp_ratelimit",
.data = &init_net.ipv4.sysctl_icmp_ratelimit,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec_ms_jiffies,
+ .proc_handler = netns_proc_dointvec_ms_jiffies,
},
{
.procname = "icmp_ratemask",
.data = &init_net.ipv4.sysctl_icmp_ratemask,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = netns_proc_dointvec,
},
{
.procname = "rt_cache_rebuild_count",
.data = &init_net.ipv4.sysctl_rt_cache_rebuild_count,
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = proc_dointvec
+ .proc_handler = netns_proc_dointvec,
},
{ }
};
@@ -691,53 +691,18 @@ EXPORT_SYMBOL_GPL(net_ipv4_ctl_path);
static __net_init int ipv4_sysctl_init_net(struct net *net)
{
- struct ctl_table *table;
-
- table = ipv4_net_table;
- if (!net_eq(net, &init_net)) {
- table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
- if (table == NULL)
- goto err_alloc;
-
- table[0].data =
- &net->ipv4.sysctl_icmp_echo_ignore_all;
- table[1].data =
- &net->ipv4.sysctl_icmp_echo_ignore_broadcasts;
- table[2].data =
- &net->ipv4.sysctl_icmp_ignore_bogus_error_responses;
- table[3].data =
- &net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr;
- table[4].data =
- &net->ipv4.sysctl_icmp_ratelimit;
- table[5].data =
- &net->ipv4.sysctl_icmp_ratemask;
- table[6].data =
- &net->ipv4.sysctl_rt_cache_rebuild_count;
- }
-
net->ipv4.sysctl_rt_cache_rebuild_count = 4;
net->ipv4.ipv4_hdr = register_net_sysctl_table(net,
- net_ipv4_ctl_path, table);
+ net_ipv4_ctl_path, ipv4_net_table);
if (net->ipv4.ipv4_hdr == NULL)
- goto err_reg;
-
+ return -ENOMEM;
return 0;
-
-err_reg:
- if (!net_eq(net, &init_net))
- kfree(table);
-err_alloc:
- return -ENOMEM;
}
static __net_exit void ipv4_sysctl_exit_net(struct net *net)
{
- struct ctl_table *table;
-
- table = net->ipv4.ipv4_hdr->ctl_table_arg;
unregister_net_sysctl_table(net->ipv4.ipv4_hdr);
- kfree(table);
}
static __net_initdata struct pernet_operations ipv4_sysctl_ops = {
--
1.7.5.rc0
--
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