Commit ed991d43 authored by Jeremy Sowden's avatar Jeremy Sowden Committed by Pablo Neira Ayuso
Browse files

netfilter: bitwise: only offload boolean operations. 



Only boolean operations supports offloading, so check the type of the
operation and return an error for other types.

Signed-off-by: default avatarJeremy Sowden <jeremy@azazel.net>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
parent 4d57ca2b

net/netfilter/nft_bitwise.c

+3 −0
Original line number Diff line number Diff line
@@ -189,6 +189,9 @@ static int nft_bitwise_offload(struct nft_offload_ctx *ctx, 
	const struct nft_bitwise *priv = nft_expr_priv(expr);

	struct nft_offload_reg *reg = &ctx->regs[priv->dreg];



	if (priv->op != NFT_BITWISE_BOOL)

		return -EOPNOTSUPP;



	if (memcmp(&priv->xor, &zero, sizeof(priv->xor)) ||

	    priv->sreg != priv->dreg || priv->len != reg->len)

		return -EOPNOTSUPP;

CRA Git | Maintained and supported by SUSTech CRA and CCSE