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[NETNS][IPV6]: Make ip6_frags per namespace.

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The ip6_frags is moved to the network namespace structure.  Because
there can be multiple instances of the network namespaces, and the
ip6_frags is no longer a global static variable, a helper function has
been added to facilitate the initialization of the variables.

Until the ipv6 protocol is not per namespace, the variables are
accessed relatively from the initial network namespace.

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 02:56:03 -08:00
committed by David S. Miller
parent 99bc9c4e45
commit e71e0349eb
5 changed files with 26 additions and 16 deletions
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16
net/ipv6/reassembly.c
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@@ -82,13 +82,6 @@ struct frag_queue
__u16 nhoffset;
};
struct inet_frags_ctl ip6_frags_ctl __read_mostly = {
.high_thresh = 256 * 1024,
.low_thresh = 192 * 1024,
.timeout = IPV6_FRAG_TIMEOUT,
.secret_interval = 10 * 60 * HZ,
};
static struct inet_frags ip6_frags;
int ip6_frag_nqueues(void)
@@ -605,7 +598,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
return 1;
}
if (atomic_read(&ip6_frags.mem) > ip6_frags_ctl.high_thresh)
if (atomic_read(&ip6_frags.mem) > init_net.ipv6.sysctl.frags.high_thresh)
ip6_evictor(ip6_dst_idev(skb->dst));
if ((fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr,
@@ -632,6 +625,11 @@ static struct inet6_protocol frag_protocol =
.flags = INET6_PROTO_NOPOLICY,
};
void ipv6_frag_sysctl_init(struct net *net)
{
ip6_frags.ctl = &net->ipv6.sysctl.frags;
}
int __init ipv6_frag_init(void)
{
int ret;
@@ -639,7 +637,7 @@ int __init ipv6_frag_init(void)
ret = inet6_add_protocol(&frag_protocol, IPPROTO_FRAGMENT);
if (ret)
goto out;
ip6_frags.ctl = &ip6_frags_ctl;
ip6_frags.hashfn = ip6_hashfn;
ip6_frags.constructor = ip6_frag_init;
ip6_frags.destructor = NULL;