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authorPablo Neira Ayuso <pablo@netfilter.org>2019-11-12 00:29:54 +0100
committerDavid S. Miller <davem@davemloft.net>2019-11-12 19:42:26 -0800
commitf1363e058b84e61d39f9796fa806090ad7a28ebd (patch)
tree975cba24c002cdaf74c3c01e76a1c479f39b9edb /include/net/netfilter
parent62248df88a406a443b838a3633a7f60a716f999e (diff)
netfilter: nf_flow_table: detach routing information from flow description
This patch adds the infrastructure to support for flow entry types. The initial type is NF_FLOW_OFFLOAD_ROUTE that stores the routing information into the flow entry to define a fastpath for the classic forwarding path. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/netfilter')
-rw-r--r--include/net/netfilter/nf_flow_table.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h
index 6d33734c8fa1..f000e8917487 100644
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -70,10 +70,16 @@ struct flow_offload_tuple_rhash {
#define FLOW_OFFLOAD_DYING 0x4
#define FLOW_OFFLOAD_TEARDOWN 0x8
+enum flow_offload_type {
+ NF_FLOW_OFFLOAD_UNSPEC = 0,
+ NF_FLOW_OFFLOAD_ROUTE,
+};
+
struct flow_offload {
struct flow_offload_tuple_rhash tuplehash[FLOW_OFFLOAD_DIR_MAX];
struct nf_conn *ct;
- u32 flags;
+ u16 flags;
+ u16 type;
u32 timeout;
struct rcu_head rcu_head;
};
@@ -86,10 +92,12 @@ struct nf_flow_route {
} tuple[FLOW_OFFLOAD_DIR_MAX];
};
-struct flow_offload *flow_offload_alloc(struct nf_conn *ct,
- struct nf_flow_route *route);
+struct flow_offload *flow_offload_alloc(struct nf_conn *ct);
void flow_offload_free(struct flow_offload *flow);
+int flow_offload_route_init(struct flow_offload *flow,
+ const struct nf_flow_route *route);
+
int flow_offload_add(struct nf_flowtable *flow_table, struct flow_offload *flow);
struct flow_offload_tuple_rhash *flow_offload_lookup(struct nf_flowtable *flow_table,
struct flow_offload_tuple *tuple);