Thread (39 messages) 39 messages, 5 authors, 2024-10-22
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[PATCH RFC v1 net-next 07/12] netfilter :nf_flow_table_offload: Add nf_flow_rule_bridge()

From: Eric Woudstra <hidden>
Date: 2024-10-13 18:55:43
Also in: bridge, linux-arm-kernel, linux-mediatek, lkml, netfilter-devel
Subsystem: netfilter, networking [general], the rest · Maintainers: Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

Add nf_flow_rule_bridge().

It only calls the common rule and adds the redirect.

Signed-off-by: Eric Woudstra <redacted>
---
 include/net/netfilter/nf_flow_table.h |  3 +++
 net/netfilter/nf_flow_table_offload.c | 13 +++++++++++++
 2 files changed, 16 insertions(+)
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h
index b63d53bb9dd6..568019a3898a 100644
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -341,6 +341,9 @@ void nf_flow_table_offload_flush_cleanup(struct nf_flowtable *flowtable);
 int nf_flow_table_offload_setup(struct nf_flowtable *flowtable,
 				struct net_device *dev,
 				enum flow_block_command cmd);
+int nf_flow_rule_bridge(struct net *net, struct flow_offload *flow,
+			enum flow_offload_tuple_dir dir,
+			struct nf_flow_rule *flow_rule);
 int nf_flow_rule_route_ipv4(struct net *net, struct flow_offload *flow,
 			    enum flow_offload_tuple_dir dir,
 			    struct nf_flow_rule *flow_rule);
diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index e06bc36f49fe..5543ce03a196 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -679,6 +679,19 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,
 	return 0;
 }
 
+int nf_flow_rule_bridge(struct net *net, struct flow_offload *flow,
+			enum flow_offload_tuple_dir dir,
+			struct nf_flow_rule *flow_rule)
+{
+	if (nf_flow_rule_route_common(net, flow, dir, flow_rule) < 0)
+		return -1;
+
+	flow_offload_redirect(net, flow, dir, flow_rule);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nf_flow_rule_bridge);
+
 int nf_flow_rule_route_ipv4(struct net *net, struct flow_offload *flow,
 			    enum flow_offload_tuple_dir dir,
 			    struct nf_flow_rule *flow_rule)
-- 
2.45.2
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