diff options
Diffstat (limited to 'net/netfilter/nft_flow_offload.c')
| -rw-r--r-- | net/netfilter/nft_flow_offload.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c index 0af34ad41479..900d48c810a1 100644 --- a/net/netfilter/nft_flow_offload.c +++ b/net/netfilter/nft_flow_offload.c @@ -298,6 +298,19 @@ static void nft_flow_offload_eval(const struct nft_expr *expr, break; case IPPROTO_UDP: break; +#ifdef CONFIG_NF_CT_PROTO_GRE + case IPPROTO_GRE: { + struct nf_conntrack_tuple *tuple; + + if (ct->status & IPS_NAT_MASK) + goto out; + tuple = &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple; + /* No support for GRE v1 */ + if (tuple->src.u.gre.key || tuple->dst.u.gre.key) + goto out; + break; + } +#endif default: goto out; } @@ -428,6 +441,7 @@ static const struct nft_expr_ops nft_flow_offload_ops = { .destroy = nft_flow_offload_destroy, .validate = nft_flow_offload_validate, .dump = nft_flow_offload_dump, + .reduce = NFT_REDUCE_READONLY, }; static struct nft_expr_type nft_flow_offload_type __read_mostly = { |