From f24afe75cdfb8fc3409437d0d5ccfa68372690c8 Mon Sep 17 00:00:00 2001
From: Oskar Viljasaar <oskar.viljasaar@iopsys.eu>
Date: Tue, 19 Jan 2021 10:47:08 +0100
Subject: [PATCH] Import openwrt hack patch 647-netfilter-flow-acct.patch
---
include/net/netfilter/nf_flow_table.h | 2 ++
net/netfilter/nf_flow_table_core.c | 17 +++++++++++++++++
net/netfilter/nf_flow_table_ip.c | 3 +++
3 files changed, 22 insertions(+)
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h
index eb36060f58..ca12907951 100644
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -163,6 +163,8 @@ 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) \
diff --git a/net/netfilter/nf_flow_table_core.c b/net/netfilter/nf_flow_table_core.c
index 15ceb7653c..ba050ea030 100644
--- a/net/netfilter/nf_flow_table_core.c
+++ b/net/netfilter/nf_flow_table_core.c
@@ -11,6 +11,7 @@
#include <net/netfilter/nf_conntrack.h>
#include <net/netfilter/nf_conntrack_core.h>
#include <net/netfilter/nf_conntrack_tuple.h>
+#include <net/netfilter/nf_conntrack_acct.h>
struct flow_offload_entry {
struct flow_offload flow;
@@ -149,6 +150,22 @@ void flow_offload_free(struct flow_offload *flow)
}
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;
diff --git a/net/netfilter/nf_flow_table_ip.c b/net/netfilter/nf_flow_table_ip.c
index bd01edfe44..d751631414 100644
--- a/net/netfilter/nf_flow_table_ip.c
+++ b/net/netfilter/nf_flow_table_ip.c
@@ -11,6 +11,7 @@
#include <net/ip6_route.h>
#include <net/neighbour.h>
#include <net/netfilter/nf_flow_table.h>
+
/* For layer 4 checksum field offset. */
#include <linux/tcp.h>
#include <linux/udp.h>
@@ -268,6 +269,7 @@ nf_flow_offload_ip_hook(void *priv, struct sk_buff *skb,
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;
@@ -489,6 +491,7 @@ nf_flow_offload_ipv6_hook(void *priv, struct sk_buff *skb,
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;
--
GitLab