From 1d4d156a7ce67988f922c470f622f6dd2a5c161b Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 13 Aug 2018 17:00:14 +0200 Subject: [PATCH] generic: add flow_offload accounting This patch makes the flow offloading layer account for the traffic inside the conntack entries. Signed-off-by: John Crispin --- .../hack-4.14/647-netfilter-flow-acct.patch | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 target/linux/generic/hack-4.14/647-netfilter-flow-acct.patch diff --git a/target/linux/generic/hack-4.14/647-netfilter-flow-acct.patch b/target/linux/generic/hack-4.14/647-netfilter-flow-acct.patch new file mode 100644 index 0000000000..290570fe9f --- /dev/null +++ b/target/linux/generic/hack-4.14/647-netfilter-flow-acct.patch @@ -0,0 +1,70 @@ +--- a/include/net/netfilter/nf_flow_table.h ++++ b/include/net/netfilter/nf_flow_table.h +@@ -164,6 +164,8 @@ struct nf_flow_table_hw { + int nf_flow_table_hw_register(const struct nf_flow_table_hw *offload); + void nf_flow_table_hw_unregister(const struct nf_flow_table_hw *offload); + ++void nf_flow_table_acct(struct flow_offload *flow, struct sk_buff *skb, int dir); ++ + extern struct work_struct nf_flow_offload_hw_work; + + #define MODULE_ALIAS_NF_FLOWTABLE(family) \ +--- a/net/netfilter/nf_flow_table_core.c ++++ b/net/netfilter/nf_flow_table_core.c +@@ -11,6 +11,7 @@ + #include + #include + #include ++#include + + struct flow_offload_entry { + struct flow_offload flow; +@@ -151,6 +152,22 @@ void flow_offload_free(struct flow_offlo + } + EXPORT_SYMBOL_GPL(flow_offload_free); + ++void nf_flow_table_acct(struct flow_offload *flow, struct sk_buff *skb, int dir) ++{ ++ struct flow_offload_entry *entry; ++ struct nf_conn_acct *acct; ++ ++ entry = container_of(flow, struct flow_offload_entry, flow); ++ acct = nf_conn_acct_find(entry->ct); ++ if (acct) { ++ struct nf_conn_counter *counter = acct->counter; ++ ++ atomic64_inc(&counter[dir].packets); ++ atomic64_add(skb->len, &counter[dir].bytes); ++ } ++} ++EXPORT_SYMBOL_GPL(nf_flow_table_acct); ++ + static u32 flow_offload_hash(const void *data, u32 len, u32 seed) + { + const struct flow_offload_tuple *tuple = data; +--- a/net/netfilter/nf_flow_table_ip.c ++++ b/net/netfilter/nf_flow_table_ip.c +@@ -11,6 +11,7 @@ + #include + #include + #include ++ + /* For layer 4 checksum field offset. */ + #include + #include +@@ -265,6 +266,7 @@ nf_flow_offload_ip_hook(void *priv, stru + skb->dev = outdev; + nexthop = rt_nexthop(rt, flow->tuplehash[!dir].tuple.src_v4.s_addr); + skb_dst_set_noref(skb, &rt->dst); ++ nf_flow_table_acct(flow, skb, dir); + neigh_xmit(NEIGH_ARP_TABLE, outdev, &nexthop, skb); + + return NF_STOLEN; +@@ -482,6 +484,7 @@ nf_flow_offload_ipv6_hook(void *priv, st + skb->dev = outdev; + nexthop = rt6_nexthop(rt, &flow->tuplehash[!dir].tuple.src_v6); + skb_dst_set_noref(skb, &rt->dst); ++ nf_flow_table_acct(flow, skb, dir); + neigh_xmit(NEIGH_ND_TABLE, outdev, nexthop, skb); + + return NF_STOLEN; -- 2.30.2