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| author | Pablo Neira Ayuso <pablo@netfilter.org> | 2022-06-06 18:31:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-14 19:32:40 +0300 |
| commit | 86c87d2c0338a5e84e50a312943bca1f33bd8164 (patch) | |
| tree | 029648526bccb25f0315e2d0807c73eaa7c1fb1b /net/core | |
| parent | 330c0c6cd2150a2d7f47af16aa590078b0d2f736 (diff) | |
| download | linux-86c87d2c0338a5e84e50a312943bca1f33bd8164.tar.xz | |
netfilter: nf_tables: bail out early if hardware offload is not supported
[ Upstream commit 3a41c64d9c1185a2f3a184015e2a9b78bfc99c71 ]
If user requests for NFT_CHAIN_HW_OFFLOAD, then check if either device
provides the .ndo_setup_tc interface or there is an indirect flow block
that has been registered. Otherwise, bail out early from the preparation
phase. Moreover, validate that family == NFPROTO_NETDEV and hook is
NF_NETDEV_INGRESS.
Fixes: c9626a2cbdb2 ("netfilter: nf_tables: add hardware offload support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/flow_offload.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c index e3f0d5906811..8d958290b7d2 100644 --- a/net/core/flow_offload.c +++ b/net/core/flow_offload.c @@ -566,3 +566,9 @@ int flow_indr_dev_setup_offload(struct net_device *dev, struct Qdisc *sch, return list_empty(&bo->cb_list) ? -EOPNOTSUPP : 0; } EXPORT_SYMBOL(flow_indr_dev_setup_offload); + +bool flow_indr_dev_exists(void) +{ + return !list_empty(&flow_block_indr_dev_list); +} +EXPORT_SYMBOL(flow_indr_dev_exists); |