linux/net/netlink/Kconfig

#
# Netlink Sockets
#

config NETLINK_MMAP
	bool "NETLINK: mmaped IO"
	---help---
	  This option enables support for memory mapped netlink IO. This
	  reduces overhead by avoiding copying data between kernel- and
	  userspace.

	  If unsure, say N.

config NETLINK_DIAG
	tristate "NETLINK: socket monitoring interface"
	default n
	---help---
	  Support for NETLINK socket monitoring interface used by the ss tool.
	  If unsure, say Y.
netlink: Diag core and basic socket info dumping (v2) The netlink_diag can be built as a module, just like it's done in unix sockets. The core dumping message carries the basic info about netlink sockets: family, type and protocol, portis, dst_group, dst_portid, state. Groups can be received as an optional parameter NETLINK_DIAG_GROUPS. Netlink sockets cab be filtered by protocols. The socket inode number and cookie is reserved for future per-socket info retrieving. The per-protocol filtering is also reserved for future by requiring the sdiag_protocol to be zero. The file /proc/net/netlink doesn't provide enough information for dumping netlink sockets. It doesn't provide dst_group, dst_portid, groups above 32. v2: fix NETLINK_DIAG_MAX. Now it's equal to the last constant. Acked-by: Pavel Emelyanov <xemul@parallels.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Gao feng <gaofeng@cn.fujitsu.com> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net> 2013-03-21 16:33:48 +00:00			`#`
			`# Netlink Sockets`
			`#`

netlink: kconfig: move mmap i/o into netlink kconfig Currently, in menuconfig, Netlink's new mmaped IO is the very first entry under the ``Networking support'' item and comes even before ``Networking options'': [ ] Netlink: mmaped IO Networking options ---> ... Lets move this into ``Networking options'' under netlink's Kconfig, since this might be more appropriate. Introduced by commit ccdfcc398 (``netlink: mmaped netlink: ring setup''). Signed-off-by: Daniel Borkmann <dborkman@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> 2013-05-01 01:37:20 +00:00			`config NETLINK_MMAP`
			`bool "NETLINK: mmaped IO"`
			`---help---`
			`This option enables support for memory mapped netlink IO. This`
			`reduces overhead by avoiding copying data between kernel- and`
			`userspace.`

			`If unsure, say N.`

netlink: Diag core and basic socket info dumping (v2) The netlink_diag can be built as a module, just like it's done in unix sockets. The core dumping message carries the basic info about netlink sockets: family, type and protocol, portis, dst_group, dst_portid, state. Groups can be received as an optional parameter NETLINK_DIAG_GROUPS. Netlink sockets cab be filtered by protocols. The socket inode number and cookie is reserved for future per-socket info retrieving. The per-protocol filtering is also reserved for future by requiring the sdiag_protocol to be zero. The file /proc/net/netlink doesn't provide enough information for dumping netlink sockets. It doesn't provide dst_group, dst_portid, groups above 32. v2: fix NETLINK_DIAG_MAX. Now it's equal to the last constant. Acked-by: Pavel Emelyanov <xemul@parallels.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Eric Dumazet <edumazet@google.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Gao feng <gaofeng@cn.fujitsu.com> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net> 2013-03-21 16:33:48 +00:00			`config NETLINK_DIAG`
			`tristate "NETLINK: socket monitoring interface"`
			`default n`
			`---help---`
			`Support for NETLINK socket monitoring interface used by the ss tool.`
			`If unsure, say Y.`