[PATCH v5 net-next 08/14] netfilter: nf_flow_table_inet: Add nf_flowtable_type flowtable_bridge

Eric Woudstra
2025-02-04T21:31:13Z

This will allow a flowtable to be added to the nft bridge family.

Signed-off-by: Eric Woudstra <ericwouds@gmail.com>
---
net/netfilter/nf_flow_table_inet.c | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/net/netfilter/nf_flow_table_inet.c b/net/netfilter/nf_flow_table_inet.c
index b0f199171932..80b238196f29 100644
--- a/net/netfilter/nf_flow_table_inet.c
+++ b/net/netfilter/nf_flow_table_inet.c
@@ -65,6 +65,16 @@ static int nf_flow_rule_route_inet(struct net *net,
return err;
}

+static struct nf_flowtable_type flowtable_bridge = {
+ .family = NFPROTO_BRIDGE,
+ .init = nf_flow_table_init,
+ .setup = nf_flow_table_offload_setup,
+ .action = nf_flow_rule_bridge,
+ .free = nf_flow_table_free,
+ .hook = nf_flow_offload_inet_hook,
+ .owner = THIS_MODULE,
+};
+
static struct nf_flowtable_type flowtable_inet = {
.family = NFPROTO_INET,
.init = nf_flow_table_init,
@@ -97,6 +107,7 @@ static struct nf_flowtable_type flowtable_ipv6 = {

static int __init nf_flow_inet_module_init(void)
{
+ nft_register_flowtable_type(&flowtable_bridge);
nft_register_flowtable_type(&flowtable_ipv4);
nft_register_flowtable_type(&flowtable_ipv6);
nft_register_flowtable_type(&flowtable_inet);
@@ -109,6 +120,7 @@ static void __exit nf_flow_inet_module_exit(void)
nft_unregister_flowtable_type(&flowtable_inet);
nft_unregister_flowtable_type(&flowtable_ipv6);
nft_unregister_flowtable_type(&flowtable_ipv4);
+ nft_unregister_flowtable_type(&flowtable_bridge);
}

module_init(nf_flow_inet_module_init);
@@ -118,5 +130,6 @@ MODULE_LICENSE("GPL");
MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
MODULE_ALIAS_NF_FLOWTABLE(AF_INET);
MODULE_ALIAS_NF_FLOWTABLE(AF_INET6);
+MODULE_ALIAS_NF_FLOWTABLE(AF_BRIDGE);
MODULE_ALIAS_NF_FLOWTABLE(1); /* NFPROTO_INET */
MODULE_DESCRIPTION("Netfilter flow table mixed IPv4/IPv6 module");
--
2.47.1