netfilter: add CHECKSUM target

[pandora-kernel.git] / net / netfilter / Kconfig

diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index aa2f106..5fb8efa 100644 (file)
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -326,6 +326,22 @@ config NETFILTER_XT_CONNMARK
 
 comment "Xtables targets"
 
+config NETFILTER_XT_TARGET_CHECKSUM
+       tristate "CHECKSUM target support"
+       depends on IP_NF_MANGLE || IP6_NF_MANGLE
+       depends on NETFILTER_ADVANCED
+       ---help---
+         This option adds a `CHECKSUM' target, which can be used in the iptables mangle
+         table.
+
+         You can use this target to compute and fill in the checksum in
+         a packet that lacks a checksum.  This is particularly useful,
+         if you need to work around old applications such as dhcp clients,
+         that do not work well with checksum offloads, but don't want to disable
+         checksum offload in your device.
+
+         To compile it as a module, choose M here.  If unsure, say N.
+
 config NETFILTER_XT_TARGET_CLASSIFY
        tristate '"CLASSIFY" target support'
        depends on NETFILTER_ADVANCED