The recently introduced object pinning can be further extended in order
to allow sharing maps beyond tc namespace. F.e. maps that are being pinned
from tracing side, can be accessed through this facility as well.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>

Add support for reading table id/name mappings from rt_tables.d
directory.

Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>

RFC 2598 defines Expedited Forwarding in section 2.3
   Codepoint 101110 is recommended for the EF PHB.
which translates to B8 as encoded in rt_dsfield

There were only few Netlink protocol names
which were printed on the screen:

    rtnl, fw, tcpdiag

So added the ability to identify Netlink proto name
from /etc/iproute/nl_protos or from static table.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Update the rt_dsfield file to contain values defined in current RFC.
The days of TOS precedence are gone, even Cisco doesn't refer
to these in the documents.

The canid ematch has been added in commit:

7b5f30e Ematch used to classify CAN frames according to their identifiers

But the corresponding entry in etc/iproute2/ematch_map was lost. This patch
adds the missing entry in ematch_map, otherweise tc would complain:

Error: Unable to find ematch "canid" in /etc/iproute2/ematch_map
Please assign a unique ID to the ematch kind the suggested entry is:
        7       canid

Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

example usage:
tc filter add dev $dev parent $id: basic match not ipset'(foobar src)' ..

also updates iproute2/ematch_map, else tc complains:
Error: Unable to find ematch "ipset" in /etc/iproute2/ematch_map
Please assign a unique ID to the ematch kind the suggested entry is:
        8       ipset

when trying to use this ematch.

(text ematch (5) only exists in kernel, a vlan ematch (6) exists neither in
 kernel nor userspace, but kernel headers define TCF_EM_VLAN == 6).

User can specify device group to list by using the group keyword:

	ip link show group test

If no group is specified, 0 (default) is implied.

Signed-off-by: Vlad Dogaru <ddvlad@rosedu.org>