netfilter: nft_nat: allow to specify layer 4 protocol NAT only
[ Upstream commit a33f387ecd5aafae514095c2c4a8c24f7aea7e8b ]
nft_nat reports a bogus EAFNOSUPPORT if no layer 3 information is specified.
Fixes: d07db9884a
("netfilter: nf_tables: introduce nft_validate_register_load()")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:

committed by
Greg Kroah-Hartman

parent
3dbda8483f
commit
cbc8012902
@@ -201,7 +201,9 @@ static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
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alen = sizeof_field(struct nf_nat_range, min_addr.ip6);
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break;
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default:
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if (tb[NFTA_NAT_REG_ADDR_MIN])
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return -EAFNOSUPPORT;
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break;
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}
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priv->family = family;
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