xfrm: add IPv6 support for espintcp
This extends espintcp to support IPv6, building on the existing code
and the new UDPv6 encapsulation support. Most of the code is either
reused directly (stream parser, ULP) or very similar to the IPv4
variant (net/ipv6/esp6.c changes).
The separation of config options for IPv4 and IPv6 espintcp requires a
bit of Kconfig gymnastics to enable the core code.
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
diff --git a/net/xfrm/Kconfig b/net/xfrm/Kconfig
index 6921a18..b7fd9c8 100644
--- a/net/xfrm/Kconfig
+++ b/net/xfrm/Kconfig
@@ -99,4 +99,7 @@
If unsure, say N.
+config XFRM_ESPINTCP
+ bool
+
endif # INET