packet: nlmon: virtual netlink monitoring device for packet sockets

[~andy/linux] / drivers / net / Kconfig

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 00aba08f01a96790f16a17c7bf3b4ee61bffc1d2..b45b240889f5049db48f0d90e4d7146b57985b8e 100644 (file)
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -240,6 +240,16 @@ config VIRTIO_NET
          This is the virtual network driver for virtio.  It can be used with
          lguest or QEMU based VMMs (like KVM or Xen).  Say Y or M.
 
+config NLMON
+       tristate "Virtual netlink monitoring device"
+       ---help---
+         This option enables a monitoring net device for netlink skbs. The
+         purpose of this is to analyze netlink messages with packet sockets.
+         Thus applications like tcpdump will be able to see local netlink
+         messages if they tap into the netlink device, record pcaps for further
+         diagnostics, etc. This is mostly intended for developers or support
+         to debug netlink issues. If unsure, say N.
+
 endif # NET_CORE
 
 config SUNGEM_PHY