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netfilter: nft_nat: NFTA_NAT_REG_ADDR_MAX depends on NFTA_NAT_REG_ADDR_MIN

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Interpret NFTA_NAT_REG_ADDR_MAX if NFTA_NAT_REG_ADDR_MIN is present,
otherwise, skip it. Same thing with NFTA_NAT_REG_PROTO_MAX.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Pablo Neira Ayuso 2014-10-16 00:19:35 +02:00
parent 5c819a3975
commit 61cfac6b42
1 changed files with 28 additions and 22 deletions
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50
net/netfilter/nft_nat.c
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@ -126,38 +126,44 @@ static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
priv->family = family;
if (tb[NFTA_NAT_REG_ADDR_MIN]) {
priv->sreg_addr_min = ntohl(nla_get_be32(
tb[NFTA_NAT_REG_ADDR_MIN]));
priv->sreg_addr_min =
ntohl(nla_get_be32(tb[NFTA_NAT_REG_ADDR_MIN]));
err = nft_validate_input_register(priv->sreg_addr_min);
if (err < 0)
return err;
if (tb[NFTA_NAT_REG_ADDR_MAX]) {
priv->sreg_addr_max =
ntohl(nla_get_be32(tb[NFTA_NAT_REG_ADDR_MAX]));
err = nft_validate_input_register(priv->sreg_addr_max);
if (err < 0)
return err;
} else {
priv->sreg_addr_max = priv->sreg_addr_min;
}
}
if (tb[NFTA_NAT_REG_ADDR_MAX]) {
priv->sreg_addr_max = ntohl(nla_get_be32(
tb[NFTA_NAT_REG_ADDR_MAX]));
err = nft_validate_input_register(priv->sreg_addr_max);
if (err < 0)
return err;
} else
priv->sreg_addr_max = priv->sreg_addr_min;
if (tb[NFTA_NAT_REG_PROTO_MIN]) {
priv->sreg_proto_min = ntohl(nla_get_be32(
tb[NFTA_NAT_REG_PROTO_MIN]));
priv->sreg_proto_min =
ntohl(nla_get_be32(tb[NFTA_NAT_REG_PROTO_MIN]));
err = nft_validate_input_register(priv->sreg_proto_min);
if (err < 0)
return err;
}
if (tb[NFTA_NAT_REG_PROTO_MAX]) {
priv->sreg_proto_max = ntohl(nla_get_be32(
tb[NFTA_NAT_REG_PROTO_MAX]));
err = nft_validate_input_register(priv->sreg_proto_max);
if (err < 0)
return err;
} else
priv->sreg_proto_max = priv->sreg_proto_min;
if (tb[NFTA_NAT_REG_PROTO_MAX]) {
priv->sreg_proto_max =
ntohl(nla_get_be32(tb[NFTA_NAT_REG_PROTO_MAX]));
err = nft_validate_input_register(priv->sreg_proto_max);
if (err < 0)
return err;
} else {
priv->sreg_proto_max = priv->sreg_proto_min;
}
}
if (tb[NFTA_NAT_FLAGS]) {
priv->flags = ntohl(nla_get_be32(tb[NFTA_NAT_FLAGS]));