mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-19 17:11:03 +00:00
4cacc39516
The user tool modinfo is used to get information on kernel modules, including a description where it is available. This patch adds a brief MODULE_DESCRIPTION to netfilter kernel modules (descriptions taken from Kconfig file or code comments) Signed-off-by: Rob Gill <rrobgill@protonmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/module.h>
|
|
#include <linux/netfilter.h>
|
|
#include <linux/rhashtable.h>
|
|
#include <net/netfilter/nf_flow_table.h>
|
|
#include <net/netfilter/nf_tables.h>
|
|
|
|
static unsigned int
|
|
nf_flow_offload_inet_hook(void *priv, struct sk_buff *skb,
|
|
const struct nf_hook_state *state)
|
|
{
|
|
switch (skb->protocol) {
|
|
case htons(ETH_P_IP):
|
|
return nf_flow_offload_ip_hook(priv, skb, state);
|
|
case htons(ETH_P_IPV6):
|
|
return nf_flow_offload_ipv6_hook(priv, skb, state);
|
|
}
|
|
|
|
return NF_ACCEPT;
|
|
}
|
|
|
|
static int nf_flow_rule_route_inet(struct net *net,
|
|
const struct flow_offload *flow,
|
|
enum flow_offload_tuple_dir dir,
|
|
struct nf_flow_rule *flow_rule)
|
|
{
|
|
const struct flow_offload_tuple *flow_tuple = &flow->tuplehash[dir].tuple;
|
|
int err;
|
|
|
|
switch (flow_tuple->l3proto) {
|
|
case NFPROTO_IPV4:
|
|
err = nf_flow_rule_route_ipv4(net, flow, dir, flow_rule);
|
|
break;
|
|
case NFPROTO_IPV6:
|
|
err = nf_flow_rule_route_ipv6(net, flow, dir, flow_rule);
|
|
break;
|
|
default:
|
|
err = -1;
|
|
break;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static struct nf_flowtable_type flowtable_inet = {
|
|
.family = NFPROTO_INET,
|
|
.init = nf_flow_table_init,
|
|
.setup = nf_flow_table_offload_setup,
|
|
.action = nf_flow_rule_route_inet,
|
|
.free = nf_flow_table_free,
|
|
.hook = nf_flow_offload_inet_hook,
|
|
.owner = THIS_MODULE,
|
|
};
|
|
|
|
static int __init nf_flow_inet_module_init(void)
|
|
{
|
|
nft_register_flowtable_type(&flowtable_inet);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void __exit nf_flow_inet_module_exit(void)
|
|
{
|
|
nft_unregister_flowtable_type(&flowtable_inet);
|
|
}
|
|
|
|
module_init(nf_flow_inet_module_init);
|
|
module_exit(nf_flow_inet_module_exit);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
|
|
MODULE_ALIAS_NF_FLOWTABLE(1); /* NFPROTO_INET */
|
|
MODULE_DESCRIPTION("Netfilter flow table mixed IPv4/IPv6 module");
|