diff options
| author | wenxu <wenxu@ucloud.cn> | 2020-02-24 13:22:55 +0800 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2020-03-15 15:27:23 +0100 |
| commit | 88bf6e4114d5af685c11c02ce95efa7c7494e940 (patch) | |
| tree | 398c6215a11826ec875a07e76ca61d88ca43c8a0 /net/netfilter/nf_flow_table_offload.c | |
| parent | cfab6dbd0ecf342fc904952d8565c8d80c741a63 (diff) | |
| download | linux-88bf6e4114d5af685c11c02ce95efa7c7494e940.tar.gz | |
netfilter: flowtable: add tunnel encap/decap action offload support
This patch add tunnel encap decap action offload in the flowtable
offload.
Signed-off-by: wenxu <wenxu@ucloud.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_flow_table_offload.c')
| -rw-r--r-- | net/netfilter/nf_flow_table_offload.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c index 3101b35eac80a6..ad549317af30d5 100644 --- a/net/netfilter/nf_flow_table_offload.c +++ b/net/netfilter/nf_flow_table_offload.c @@ -475,10 +475,52 @@ static void flow_offload_redirect(const struct flow_offload *flow, dev_hold(rt->dst.dev); } +static void flow_offload_encap_tunnel(const struct flow_offload *flow, + enum flow_offload_tuple_dir dir, + struct nf_flow_rule *flow_rule) +{ + struct flow_action_entry *entry; + struct dst_entry *dst; + + dst = flow->tuplehash[dir].tuple.dst_cache; + if (dst->lwtstate) { + struct ip_tunnel_info *tun_info; + + tun_info = lwt_tun_info(dst->lwtstate); + if (tun_info && (tun_info->mode & IP_TUNNEL_INFO_TX)) { + entry = flow_action_entry_next(flow_rule); + entry->id = FLOW_ACTION_TUNNEL_ENCAP; + entry->tunnel = tun_info; + } + } +} + +static void flow_offload_decap_tunnel(const struct flow_offload *flow, + enum flow_offload_tuple_dir dir, + struct nf_flow_rule *flow_rule) +{ + struct flow_action_entry *entry; + struct dst_entry *dst; + + dst = flow->tuplehash[!dir].tuple.dst_cache; + if (dst->lwtstate) { + struct ip_tunnel_info *tun_info; + + tun_info = lwt_tun_info(dst->lwtstate); + if (tun_info && (tun_info->mode & IP_TUNNEL_INFO_TX)) { + entry = flow_action_entry_next(flow_rule); + entry->id = FLOW_ACTION_TUNNEL_DECAP; + } + } +} + int nf_flow_rule_route_ipv4(struct net *net, const struct flow_offload *flow, enum flow_offload_tuple_dir dir, struct nf_flow_rule *flow_rule) { + flow_offload_decap_tunnel(flow, dir, flow_rule); + flow_offload_encap_tunnel(flow, dir, flow_rule); + if (flow_offload_eth_src(net, flow, dir, flow_rule) < 0 || flow_offload_eth_dst(net, flow, dir, flow_rule) < 0) return -1; @@ -505,6 +547,9 @@ int nf_flow_rule_route_ipv6(struct net *net, const struct flow_offload *flow, enum flow_offload_tuple_dir dir, struct nf_flow_rule *flow_rule) { + flow_offload_decap_tunnel(flow, dir, flow_rule); + flow_offload_encap_tunnel(flow, dir, flow_rule); + if (flow_offload_eth_src(net, flow, dir, flow_rule) < 0 || flow_offload_eth_dst(net, flow, dir, flow_rule) < 0) return -1; |