Revision 23de4a7af7bc3d687f783a612b8e824865b7e6ce authored by Linus Torvalds on 21 May 2014, 08:57:31 UTC, committed by Linus Torvalds on 21 May 2014, 08:57:31 UTC
Pull device mapper fixes from Mike Snitzer: "A dm-crypt fix for a cpu hotplug crash that switches from using per-cpu data to a mempool allocation (which offers allocation with cpu locality, and there is no inter-cpu communication on slab allocation). A couple dm-thinp stable fixes to address "out-of-data-space" issues. A dm-multipath fix for a LOCKDEP warning introduced in 3.15-rc1" * tag 'dm-3.15-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm mpath: fix lock order inconsistency in multipath_ioctl dm thin: add timeout to stop out-of-data-space mode holding IO forever dm thin: allow metadata commit if pool is in PM_OUT_OF_DATA_SPACE mode dm crypt: fix cpu hotplug crash by removing per-cpu structure
nf_tables_ipv6.c
/*
* Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
* Copyright (c) 2012-2013 Pablo Neira Ayuso <pablo@netfilter.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Development of this code funded by Astaro AG (http://www.astaro.com/)
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/ipv6.h>
#include <linux/netfilter_ipv6.h>
#include <net/netfilter/nf_tables.h>
#include <net/netfilter/nf_tables_ipv6.h>
static unsigned int nft_do_chain_ipv6(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
struct nft_pktinfo pkt;
/* malformed packet, drop it */
if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
return NF_DROP;
return nft_do_chain(&pkt, ops);
}
static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
if (unlikely(skb->len < sizeof(struct ipv6hdr))) {
if (net_ratelimit())
pr_info("nf_tables_ipv6: ignoring short SOCK_RAW "
"packet\n");
return NF_ACCEPT;
}
return nft_do_chain_ipv6(ops, skb, in, out, okfn);
}
struct nft_af_info nft_af_ipv6 __read_mostly = {
.family = NFPROTO_IPV6,
.nhooks = NF_INET_NUMHOOKS,
.owner = THIS_MODULE,
.nops = 1,
.hooks = {
[NF_INET_LOCAL_IN] = nft_do_chain_ipv6,
[NF_INET_LOCAL_OUT] = nft_ipv6_output,
[NF_INET_FORWARD] = nft_do_chain_ipv6,
[NF_INET_PRE_ROUTING] = nft_do_chain_ipv6,
[NF_INET_POST_ROUTING] = nft_do_chain_ipv6,
},
};
EXPORT_SYMBOL_GPL(nft_af_ipv6);
static int nf_tables_ipv6_init_net(struct net *net)
{
net->nft.ipv6 = kmalloc(sizeof(struct nft_af_info), GFP_KERNEL);
if (net->nft.ipv6 == NULL)
return -ENOMEM;
memcpy(net->nft.ipv6, &nft_af_ipv6, sizeof(nft_af_ipv6));
if (nft_register_afinfo(net, net->nft.ipv6) < 0)
goto err;
return 0;
err:
kfree(net->nft.ipv6);
return -ENOMEM;
}
static void nf_tables_ipv6_exit_net(struct net *net)
{
nft_unregister_afinfo(net->nft.ipv6);
kfree(net->nft.ipv6);
}
static struct pernet_operations nf_tables_ipv6_net_ops = {
.init = nf_tables_ipv6_init_net,
.exit = nf_tables_ipv6_exit_net,
};
static const struct nf_chain_type filter_ipv6 = {
.name = "filter",
.type = NFT_CHAIN_T_DEFAULT,
.family = NFPROTO_IPV6,
.owner = THIS_MODULE,
.hook_mask = (1 << NF_INET_LOCAL_IN) |
(1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_FORWARD) |
(1 << NF_INET_PRE_ROUTING) |
(1 << NF_INET_POST_ROUTING),
};
static int __init nf_tables_ipv6_init(void)
{
int ret;
nft_register_chain_type(&filter_ipv6);
ret = register_pernet_subsys(&nf_tables_ipv6_net_ops);
if (ret < 0)
nft_unregister_chain_type(&filter_ipv6);
return ret;
}
static void __exit nf_tables_ipv6_exit(void)
{
unregister_pernet_subsys(&nf_tables_ipv6_net_ops);
nft_unregister_chain_type(&filter_ipv6);
}
module_init(nf_tables_ipv6_init);
module_exit(nf_tables_ipv6_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
MODULE_ALIAS_NFT_FAMILY(AF_INET6);
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