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Subject[PATCH 4.18 094/168] netfilter: kconfig: nat related expression depend on nftables core
Date
4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Florian Westphal <fw@strlen.de>

[ Upstream commit e0758412208960be9de11e6d2350c81ffd88410f ]

NF_TABLES_IPV4 is now boolean so it is possible to set

NF_TABLES=m
NF_TABLES_IPV4=y
NFT_CHAIN_NAT_IPV4=y

which causes:
nft_chain_nat_ipv4.c:(.text+0x6d): undefined reference to `nft_do_chain'

Wrap NFT_CHAIN_NAT_IPV4 and related nat expressions with NF_TABLES to
restore the dependency.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: 02c7b25e5f54 ("netfilter: nf_tables: build-in filter chain type")
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/ipv4/netfilter/Kconfig | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -122,6 +122,10 @@ config NF_NAT_IPV4

if NF_NAT_IPV4

+config NF_NAT_MASQUERADE_IPV4
+ bool
+
+if NF_TABLES
config NFT_CHAIN_NAT_IPV4
depends on NF_TABLES_IPV4
tristate "IPv4 nf_tables nat chain support"
@@ -131,9 +135,6 @@ config NFT_CHAIN_NAT_IPV4
packet transformations such as the source, destination address and
source and destination ports.

-config NF_NAT_MASQUERADE_IPV4
- bool
-
config NFT_MASQ_IPV4
tristate "IPv4 masquerading support for nf_tables"
depends on NF_TABLES_IPV4
@@ -151,6 +152,7 @@ config NFT_REDIR_IPV4
help
This is the expression that provides IPv4 redirect support for
nf_tables.
+endif # NF_TABLES

config NF_NAT_SNMP_BASIC
tristate "Basic SNMP-ALG support"

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