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[NETNS][FRAGS]: Make thresholds work in namespaces.

Browse source 
This is the same as with the timeout variable.

Currently, after exceeding the high threshold _all_
the fragments are evicted, but it will be fixed in
later patch.

Signed-off-by: Pavel Emelyanov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Pavel Emelyanov 2008-01-22 06:10:13 -08:00 • committed by David S. Miller
commit e31e0bdc7e
5 changed files with 29 additions and 30 deletions
Download patch file Download diff file Expand all files Collapse all files

12
net/ipv6/netfilter/nf_conntrack_reasm.c
View file

@ -71,8 +71,6 @@ struct nf_ct_frag6_queue
};
static struct inet_frags_ctl nf_frags_ctl __read_mostly = {
.high_thresh = 256 * 1024,
.low_thresh = 192 * 1024,
.secret_interval = 10 * 60 * HZ,
};
@ -91,7 +89,7 @@ struct ctl_table nf_ct_ipv6_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_FRAG6_LOW_THRESH,
.procname = "nf_conntrack_frag6_low_thresh",
.data = &nf_frags_ctl.low_thresh,
.data = &nf_init_frags.low_thresh,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
@ -99,7 +97,7 @@ struct ctl_table nf_ct_ipv6_sysctl_table[] = {
{
.ctl_name = NET_NF_CONNTRACK_FRAG6_HIGH_THRESH,
.procname = "nf_conntrack_frag6_high_thresh",
.data = &nf_frags_ctl.high_thresh,
.data = &nf_init_frags.high_thresh,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = &proc_dointvec,
@ -632,7 +630,7 @@ struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb)
goto ret_orig;
}
if (atomic_read(&nf_init_frags.mem) > nf_frags_ctl.high_thresh)
if (atomic_read(&nf_init_frags.mem) > nf_init_frags.high_thresh)
nf_ct_frag6_evictor();
fq = fq_find(fhdr->identification, &hdr->saddr, &hdr->daddr);
@ -712,6 +710,8 @@ int nf_ct_frag6_init(void)
nf_frags.match = ip6_frag_match;
nf_frags.frag_expire = nf_ct_frag6_expire;
nf_init_frags.timeout = IPV6_FRAG_TIMEOUT;
nf_init_frags.high_thresh = 256 * 1024;
nf_init_frags.low_thresh = 192 * 1024;
inet_frags_init_net(&nf_init_frags);
inet_frags_init(&nf_frags);
@ -722,6 +722,6 @@ void nf_ct_frag6_cleanup(void)
{
inet_frags_fini(&nf_frags);
nf_frags_ctl.low_thresh = 0;
nf_init_frags.low_thresh = 0;
nf_ct_frag6_evictor();
}

15
net/ipv6/reassembly.c
View file

@ -601,8 +601,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
}
net = skb->dev->nd_net;
if (atomic_read(&net->ipv6.frags.mem) >
init_net.ipv6.sysctl.frags.high_thresh)
if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
ip6_evictor(net, ip6_dst_idev(skb->dst));
if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr,
@ -634,7 +633,7 @@ static struct ctl_table ip6_frags_ctl_table[] = {
{
.ctl_name = NET_IPV6_IP6FRAG_HIGH_THRESH,
.procname = "ip6frag_high_thresh",
.data = &init_net.ipv6.sysctl.frags.high_thresh,
.data = &init_net.ipv6.frags.high_thresh,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
@ -642,7 +641,7 @@ static struct ctl_table ip6_frags_ctl_table[] = {
{
.ctl_name = NET_IPV6_IP6FRAG_LOW_THRESH,
.procname = "ip6frag_low_thresh",
.data = &init_net.ipv6.sysctl.frags.low_thresh,
.data = &init_net.ipv6.frags.low_thresh,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
@ -679,8 +678,8 @@ static int ip6_frags_sysctl_register(struct net *net)
if (table == NULL)
goto err_alloc;
table[0].mode &= ~0222;
table[1].mode &= ~0222;
table[0].data = &net->ipv6.frags.high_thresh;
table[1].data = &net->ipv6.frags.low_thresh;
table[2].data = &net->ipv6.frags.timeout;
table[3].mode &= ~0222;
}
@ -722,8 +721,8 @@ static int ipv6_frags_init_net(struct net *net)
{
ip6_frags.ctl = &net->ipv6.sysctl.frags;
net->ipv6.sysctl.frags.high_thresh = 256 * 1024;
net->ipv6.sysctl.frags.low_thresh = 192 * 1024;
net->ipv6.frags.high_thresh = 256 * 1024;
net->ipv6.frags.low_thresh = 192 * 1024;
net->ipv6.frags.timeout = IPV6_FRAG_TIMEOUT;
net->ipv6.sysctl.frags.secret_interval = 10 * 60 * HZ;