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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-03-16 13:19:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:23:40 +0300 |
| commit | 2a85c4cb3b1585adad7917dfa7d1889939bdec3e (patch) | |
| tree | eb67d8f8c38d95c72b828b2d25a2bc0f100be6d4 /include | |
| parent | 7ff346ee019bcf3b008a56a43b7aac45e771479b (diff) | |
| download | linux-2a85c4cb3b1585adad7917dfa7d1889939bdec3e.tar.xz | |
netfilter: flowtable: Fix QinQ and pppoe support for inet table
[ Upstream commit 0492d857636e1c52cd71594a723c4b26a7b31978 ]
nf_flow_offload_inet_hook() does not check for 802.1q and PPPoE.
Fetch inner ethertype from these encapsulation protocols.
Fixes: 72efd585f714 ("netfilter: flowtable: add pppoe support")
Fixes: 4cd91f7c290f ("netfilter: flowtable: add vlan support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/netfilter/nf_flow_table.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h index a3647fadf1cc..9f927c44087d 100644 --- a/include/net/netfilter/nf_flow_table.h +++ b/include/net/netfilter/nf_flow_table.h @@ -10,6 +10,8 @@ #include <linux/netfilter/nf_conntrack_tuple_common.h> #include <net/flow_offload.h> #include <net/dst.h> +#include <linux/if_pppox.h> +#include <linux/ppp_defs.h> struct nf_flowtable; struct nf_flow_rule; @@ -313,4 +315,20 @@ int nf_flow_rule_route_ipv6(struct net *net, const struct flow_offload *flow, int nf_flow_table_offload_init(void); void nf_flow_table_offload_exit(void); +static inline __be16 nf_flow_pppoe_proto(const struct sk_buff *skb) +{ + __be16 proto; + + proto = *((__be16 *)(skb_mac_header(skb) + ETH_HLEN + + sizeof(struct pppoe_hdr))); + switch (proto) { + case htons(PPP_IP): + return htons(ETH_P_IP); + case htons(PPP_IPV6): + return htons(ETH_P_IPV6); + } + + return 0; +} + #endif /* _NF_FLOW_TABLE_H */ |