From: David Woodhouse <[email protected]> Add 'depends on LEGACY_IP' to Kconfig options that are purely IPv4-specific, so they are automatically disabled when LEGACY_IP=n.
IPv4-only options gated: - IP_MULTICAST, IP_ADVANCED_ROUTER, IP_FIB_TRIE_STATS, IP_MULTIPLE_TABLES, IP_ROUTE_MULTIPATH, IP_ROUTE_VERBOSE, IP_ROUTE_CLASSID — IPv4 routing features - IP_PNP (and children DHCP/BOOTP/RARP) — IPv4 autoconfiguration - NET_IPIP, NET_IPGRE_DEMUX, NET_IPGRE, NET_IPGRE_BROADCAST — IPv4 tunnels - IP_MROUTE_COMMON, IP_MROUTE, IP_MROUTE_MULTIPLE_TABLES, IP_PIMSM_V1, IP_PIMSM_V2 — IPv4 multicast routing - NET_IPVTI, NET_FOU_IP_TUNNELS — IPv4 VTI and FOU tunnels - INET_AH, INET_ESP, INET_ESP_OFFLOAD, INET_ESPINTCP, INET_IPCOMP — IPv4 IPsec (IPv6 has separate INET6_* options) - INET_XFRM_TUNNEL, INET_TUNNEL — IPv4 tunnel infrastructure Options intentionally left ungated (shared with IPv6): - SYN_COOKIES, NET_IP_TUNNEL, NET_UDP_TUNNEL, NET_FOU - INET_TABLE_PERTURB_ORDER, INET_DIAG and children - TCP_CONG_*, DEFAULT_TCP_CONG, TCP_SIGPOOL, TCP_AO, TCP_MD5SIG Signed-off-by: David Woodhouse <[email protected]> --- net/ipv4/Kconfig | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig index aef2c5349e62..03b5ba75c3cf 100644 --- a/net/ipv4/Kconfig +++ b/net/ipv4/Kconfig @@ -15,6 +15,7 @@ config LEGACY_IP config IP_MULTICAST bool "IP: multicasting" + depends on LEGACY_IP help This is code for addressing several networked computers at once, enlarging your kernel by about 2 KB. You need multicasting if you @@ -25,6 +26,7 @@ config IP_MULTICAST config IP_ADVANCED_ROUTER bool "IP: advanced router" + depends on LEGACY_IP help If you intend to run your Linux box mostly as a router, i.e. as a computer that forwards and redistributes network packets, say Y; you @@ -66,6 +68,7 @@ config IP_ADVANCED_ROUTER config IP_FIB_TRIE_STATS bool "FIB TRIE statistics" + depends on LEGACY_IP depends on IP_ADVANCED_ROUTER help Keep track of statistics on structure of FIB TRIE table. @@ -73,6 +76,7 @@ config IP_FIB_TRIE_STATS config IP_MULTIPLE_TABLES bool "IP: policy routing" + depends on LEGACY_IP depends on IP_ADVANCED_ROUTER select FIB_RULES help @@ -90,6 +94,7 @@ config IP_MULTIPLE_TABLES config IP_ROUTE_MULTIPATH bool "IP: equal cost multipath" + depends on LEGACY_IP depends on IP_ADVANCED_ROUTER help Normally, the routing tables specify a single action to be taken in @@ -102,6 +107,7 @@ config IP_ROUTE_MULTIPATH config IP_ROUTE_VERBOSE bool "IP: verbose route monitoring" + depends on LEGACY_IP depends on IP_ADVANCED_ROUTER help If you say Y here, which is recommended, then the kernel will print @@ -113,9 +119,11 @@ config IP_ROUTE_VERBOSE config IP_ROUTE_CLASSID bool + depends on LEGACY_IP config IP_PNP bool "IP: kernel level autoconfiguration" + depends on LEGACY_IP help This enables automatic configuration of IP addresses of devices and of the routing table during kernel boot, based on either information @@ -172,6 +180,7 @@ config IP_PNP_RARP config NET_IPIP tristate "IP: tunneling" + depends on LEGACY_IP select INET_TUNNEL select NET_IP_TUNNEL help @@ -190,6 +199,7 @@ config NET_IPIP config NET_IPGRE_DEMUX tristate "IP: GRE demultiplexer" + depends on LEGACY_IP help This is helper module to demultiplex GRE packets on GRE version field criteria. Required by ip_gre and pptp modules. @@ -202,6 +212,7 @@ config NET_IP_TUNNEL config NET_IPGRE tristate "IP: GRE tunnels over IP" + depends on LEGACY_IP depends on (IPV6 || IPV6=n) && NET_IPGRE_DEMUX select NET_IP_TUNNEL help @@ -217,6 +228,7 @@ config NET_IPGRE config NET_IPGRE_BROADCAST bool "IP: broadcast GRE over IP" + depends on LEGACY_IP depends on IP_MULTICAST && NET_IPGRE help One application of GRE/IP is to construct a broadcast WAN (Wide Area @@ -226,10 +238,12 @@ config NET_IPGRE_BROADCAST config IP_MROUTE_COMMON bool + depends on LEGACY_IP depends on IP_MROUTE || IPV6_MROUTE config IP_MROUTE bool "IP: multicast routing" + depends on LEGACY_IP depends on IP_MULTICAST select IP_MROUTE_COMMON help @@ -242,6 +256,7 @@ config IP_MROUTE config IP_MROUTE_MULTIPLE_TABLES bool "IP: multicast policy routing" + depends on LEGACY_IP depends on IP_MROUTE && IP_ADVANCED_ROUTER select FIB_RULES help @@ -256,6 +271,7 @@ config IP_MROUTE_MULTIPLE_TABLES config IP_PIMSM_V1 bool "IP: PIM-SM version 1 support" + depends on LEGACY_IP depends on IP_MROUTE help Kernel side support for Sparse Mode PIM (Protocol Independent @@ -269,6 +285,7 @@ config IP_PIMSM_V1 config IP_PIMSM_V2 bool "IP: PIM-SM version 2 support" + depends on LEGACY_IP depends on IP_MROUTE help Kernel side support for Sparse Mode PIM version 2. In order to use @@ -314,6 +331,7 @@ config SYN_COOKIES config NET_IPVTI tristate "Virtual (secure) IP: tunneling" + depends on LEGACY_IP depends on IPV6 || IPV6=n select INET_TUNNEL select NET_IP_TUNNEL @@ -341,6 +359,7 @@ config NET_FOU config NET_FOU_IP_TUNNELS bool "IP: FOU encapsulation of IP tunnels" + depends on LEGACY_IP depends on NET_IPIP || NET_IPGRE || IPV6_SIT select NET_FOU help @@ -350,6 +369,7 @@ config NET_FOU_IP_TUNNELS config INET_AH tristate "IP: AH transformation" + depends on LEGACY_IP select XFRM_AH help Support for IPsec AH (Authentication Header). @@ -365,6 +385,7 @@ config INET_AH config INET_ESP tristate "IP: ESP transformation" + depends on LEGACY_IP select XFRM_ESP help Support for IPsec ESP (Encapsulating Security Payload). @@ -380,6 +401,7 @@ config INET_ESP config INET_ESP_OFFLOAD tristate "IP: ESP transformation offload" + depends on LEGACY_IP depends on INET_ESP select XFRM_OFFLOAD default n @@ -393,6 +415,7 @@ config INET_ESP_OFFLOAD config INET_ESPINTCP bool "IP: ESP in TCP encapsulation (RFC 8229)" + depends on LEGACY_IP depends on XFRM && INET_ESP select STREAM_PARSER select NET_SOCK_MSG @@ -405,6 +428,7 @@ config INET_ESPINTCP config INET_IPCOMP tristate "IP: IPComp transformation" + depends on LEGACY_IP select INET_XFRM_TUNNEL select XFRM_IPCOMP help @@ -425,11 +449,13 @@ config INET_TABLE_PERTURB_ORDER config INET_XFRM_TUNNEL tristate + depends on LEGACY_IP select INET_TUNNEL default n config INET_TUNNEL tristate + depends on LEGACY_IP default n config INET_DIAG -- 2.51.0
