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Message-ID: <20240827145242.3094777-3-leitao@debian.org>
Date: Tue, 27 Aug 2024 07:52:41 -0700
From: Breno Leitao <leitao@...ian.org>
To: fw@...len.de,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
Pablo Neira Ayuso <pablo@...filter.org>,
Jozsef Kadlecsik <kadlec@...filter.org>,
David Ahern <dsahern@...nel.org>,
Shuah Khan <shuah@...nel.org>
Cc: rbc@...a.com,
netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
netfilter-devel@...r.kernel.org,
coreteam@...filter.org (open list:NETFILTER),
linux-kselftest@...r.kernel.org (open list:KERNEL SELFTEST FRAMEWORK)
Subject: [PATCH nf-next v3 2/2] netfilter: Make IP6_NF_IPTABLES_LEGACY selectable
This option makes IP6_NF_IPTABLES_LEGACY user selectable, giving
users the option to configure iptables without enabling any other
config.
Signed-off-by: Breno Leitao <leitao@...ian.org>
---
net/ipv6/netfilter/Kconfig | 22 ++++++++++++----------
tools/testing/selftests/net/config | 5 +++++
2 files changed, 17 insertions(+), 10 deletions(-)
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index f3c8e2d918e1..dad0a50d3ef4 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -8,7 +8,13 @@ menu "IPv6: Netfilter Configuration"
# old sockopt interface and eval loop
config IP6_NF_IPTABLES_LEGACY
- tristate
+ tristate "Legacy IP6 tables support"
+ depends on INET && IPV6
+ select NETFILTER_XTABLES
+ default n
+ help
+ ip6tables is a general, extensible packet identification legacy framework.
+ This is not needed if you are using iptables over nftables (iptables-nft).
config NF_SOCKET_IPV6
tristate "IPv6 socket lookup support"
@@ -190,7 +196,7 @@ config IP6_NF_TARGET_HL
config IP6_NF_FILTER
tristate "Packet filtering"
default m if NETFILTER_ADVANCED=n
- select IP6_NF_IPTABLES_LEGACY
+ depends on IP6_NF_IPTABLES_LEGACY
tristate
help
Packet filtering defines a table `filter', which has a series of
@@ -227,7 +233,7 @@ config IP6_NF_TARGET_SYNPROXY
config IP6_NF_MANGLE
tristate "Packet mangling"
default m if NETFILTER_ADVANCED=n
- select IP6_NF_IPTABLES_LEGACY
+ depends on IP6_NF_IPTABLES_LEGACY
help
This option adds a `mangle' table to iptables: see the man page for
iptables(8). This table is used for various packet alterations
@@ -237,7 +243,7 @@ config IP6_NF_MANGLE
config IP6_NF_RAW
tristate 'raw table support (required for TRACE)'
- select IP6_NF_IPTABLES_LEGACY
+ depends on IP6_NF_IPTABLES_LEGACY
help
This option adds a `raw' table to ip6tables. This table is the very
first in the netfilter framework and hooks in at the PREROUTING
@@ -249,9 +255,7 @@ config IP6_NF_RAW
# security table for MAC policy
config IP6_NF_SECURITY
tristate "Security table"
- depends on SECURITY
- depends on NETFILTER_ADVANCED
- select IP6_NF_IPTABLES_LEGACY
+ depends on SECURITY && NETFILTER_ADVANCED && IP6_NF_IPTABLES_LEGACY
help
This option adds a `security' table to iptables, for use
with Mandatory Access Control (MAC) policy.
@@ -260,10 +264,8 @@ config IP6_NF_SECURITY
config IP6_NF_NAT
tristate "ip6tables NAT support"
- depends on NF_CONNTRACK
- depends on NETFILTER_ADVANCED
+ depends on NF_CONNTRACK && NETFILTER_ADVANCED && IP6_NF_IPTABLES_LEGACY
select NF_NAT
- select IP6_NF_IPTABLES_LEGACY
select NETFILTER_XT_NAT
help
This enables the `nat' table in ip6tables. This allows masquerading,
diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
index 90e997cfa12e..e534144c75ea 100644
--- a/tools/testing/selftests/net/config
+++ b/tools/testing/selftests/net/config
@@ -35,12 +35,16 @@ CONFIG_IPV6_SIT=y
CONFIG_IP_DCCP=m
CONFIG_NF_NAT=m
CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_IPTABLES_LEGACY=m
CONFIG_IP_NF_IPTABLES=m
CONFIG_IP_NF_IPTABLES_LEGACY=m
CONFIG_IP_NF_FILTER=m
CONFIG_IP_NF_TARGET_REJECT=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_MANGLE=m
+CONFIG_IP6_NF_MANGLE=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_TARGET_REJECT=m
CONFIG_IP6_NF_NAT=m
CONFIG_IP6_NF_RAW=m
CONFIG_IP_NF_NAT=m
@@ -61,6 +65,7 @@ CONFIG_NF_TABLES=m
CONFIG_NF_TABLES_IPV6=y
CONFIG_NF_TABLES_IPV4=y
CONFIG_NF_REJECT_IPV4=y
+CONFIG_NF_REJECT_IPV6=y
CONFIG_NFT_NAT=m
CONFIG_NETFILTER_XT_MATCH_LENGTH=m
CONFIG_NET_ACT_CSUM=m
--
2.43.5
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