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[NETNS][IPV6]: Make multiple instance of sysctl tables.

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Each network namespace wants its own set of sysctl value, eg. we
should not be able from a namespace to set a sysctl value for another
namespace , especially for the initial network namespace.

This patch duplicates the sysctl table when we register a new network
namespace for ipv6. The duplicated table are postfixed with the
"template" word to notify the developper the table is cloned.

Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Lezcano
2008-01-10 02:53:43 -08:00
committed by David S. Miller
parent 89918fc270
commit 760f2d0186
5 changed files with 89 additions and 14 deletions
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11
net/ipv6/route.c
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@@ -2409,7 +2409,7 @@ int ipv6_sysctl_rtcache_flush(ctl_table *ctl, int write, struct file * filp,
return -EINVAL;
}
ctl_table ipv6_route_table[] = {
ctl_table ipv6_route_table_template[] = {
{
.procname = "flush",
.data = &flush_delay,
@@ -2499,6 +2499,15 @@ ctl_table ipv6_route_table[] = {
{ .ctl_name = 0 }
};
struct ctl_table *ipv6_route_sysctl_init(struct net *net)
{
struct ctl_table *table;
table = kmemdup(ipv6_route_table_template,
sizeof(ipv6_route_table_template),
GFP_KERNEL);
return table;
}
#endif
int __init ip6_route_init(void)