From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Fri, 24 Apr 2020 21:55:35 +0200
Subject: netfilter: nft_nat: set flags from initialization path
Patch-mainline: v5.8-rc1
Git-commit: 4566aa440008103c9bd364f38c03ca5309acc8f4
References: bsc#1176447

This patch sets the NAT flags from the control plane path.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 net/netfilter/nft_nat.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/net/netfilter/nft_nat.c
+++ b/net/netfilter/nft_nat.c
@@ -55,7 +55,6 @@ static void nft_nat_eval(const struct nf
 			       &regs->data[priv->sreg_addr_max],
 			       sizeof(range.max_addr.ip6));
 		}
-		range.flags |= NF_NAT_RANGE_MAP_IPS;
 	}
 
 	if (priv->sreg_proto_min) {
@@ -63,10 +62,9 @@ static void nft_nat_eval(const struct nf
 			&regs->data[priv->sreg_proto_min]);
 		range.max_proto.all = (__force __be16)nft_reg_load16(
 			&regs->data[priv->sreg_proto_max]);
-		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
 	}
 
-	range.flags |= priv->flags;
+	range.flags = priv->flags;
 
 	regs->verdict.code = nf_nat_setup_info(ct, &range, priv->type);
 }
@@ -169,6 +167,8 @@ static int nft_nat_init(const struct nft
 		} else {
 			priv->sreg_addr_max = priv->sreg_addr_min;
 		}
+
+		priv->flags |= NF_NAT_RANGE_MAP_IPS;
 	}
 
 	plen = FIELD_SIZEOF(struct nf_nat_range, min_addr.all);
@@ -191,10 +191,12 @@ static int nft_nat_init(const struct nft
 		} else {
 			priv->sreg_proto_max = priv->sreg_proto_min;
 		}
+
+		priv->flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
 	}
 
 	if (tb[NFTA_NAT_FLAGS]) {
-		priv->flags = ntohl(nla_get_be32(tb[NFTA_NAT_FLAGS]));
+		priv->flags |= ntohl(nla_get_be32(tb[NFTA_NAT_FLAGS]));
 		if (priv->flags & ~NF_NAT_RANGE_MASK)
 			return -EOPNOTSUPP;
 	}