Observed on the Linux 3.18:

    # ip netns
    RTNETLINK answers: Operation not supported
    net0

CC: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Fixes: d182ee13 ("ipnetns: allow to get and set netns ids")
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Added funcs to get AF_XXX len in bit/bytes and replace
places where switch(AF_XXX) is used for this.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Socket cookies are 64bit, even if ss happens to be
a 32bit binary, running on a 64 bit host.
Signed-off-by: Eric Dumazet <edumazet@google.com>

Ugly change but it allows to specify sport/dport w/o ':'

    # ss dport = 80 and sport = 44862
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

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

Also added some trivial form of the ID as "major:minor",
just for visualisation of explained words.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

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

Added some clarification why 'ip link set netns' can not
change network namespace for some kind of devices.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Left-overs when copying this over from cls_bpf. ;) Lets remove them.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Jiri Pirko <jiri@resnulli.us>

Add missing GUE/FOU manpages to Makefile
Signed-off-by: Ebben Aries <exa@fb.com>

This patch adds support to specify 'master' keyword,
to target a bridge link command explicitly to the software
bridge driver.

Adds self/master keywords to usage and man page

v2:
	fix usage to say (self and master) and not (self or master)
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>

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

Keep ss output consistent and format DCTCP socket statistics similar to skmen
and timer where a group of logical values are grouped by brackets. This makes
parser scripts *and* humans more happy.

Current output of 'ss -inetm dst :80':
ESTAB       0      0 192.168.11.14:55511 173.194.66.189:443
        timer:(keepalive,14sec,0) uid:1000 ino:428768
        sk:ffff88020ceb5b00 <-> skmem:(r0,rb372480,t0,tb87040,f0,w0,o0,bl0)
        ts sack wscale:7,7 rto:250 rtt:49.225/20.837 ato:40 mss:1408 cwnd:10
        ce_state 23 alpha 23 ab_ecn 23 ab_tot 23 send 2.3Mbps
        lastsnd:121026 lastrcv:121026 lastack:30850 pacing_rate 4.6Mbps
        retrans:0/2 rcv_rtt:40.416 rcv_space:2920

New grouped output:
ESTAB       0      0 192.168.11.14:55511 173.194.66.189:443
        timer:(keepalive,14sec,0) uid:1000 ino:428768
        sk:ffff88020ceb5b00 <-> skmem:(r0,rb372480,t0,tb87040,f0,w0,o0,bl0)
        ts sack wscale:7,7 rto:250 rtt:49.225/20.837 ato:40 mss:1408 cwnd:10
        dctcp(ce_state:23,alpha:23,ab_ecn:23,ab_tot:23) send 2.3Mbps
        lastsnd:121026 lastrcv:121026 lastack:30850 pacing_rate 4.6Mbps
        retrans:0/2 rcv_rtt:40.416 rcv_space:2920

Cc: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>

Now done by default or with 'ip monitor rule'.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

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

Detailed info can be printed if filter should not pass
the socket info.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

The existing behaviour forces one to memorize the integer constants for
STP port states.

    # bridge link set dev dummy0 state 3

This patch makes it possible to use the lowercased port state name.

    # bridge link set dev dummy0 state forwarding

Invalid non-integer inputs now cause exit with status -1.
Signed-off-by: Alex Pilon <alp@alexpilon.ca>

When this attribute is set, it means that the i/o part of the related netdevice
is in another netns.
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

This new attribute is now advertised by the kernel for x-netns interfaces.
It's also possible to set it when an interface is created (and thus creating a
x-netns interface with one single message).

Example:
 $ ip netns add foo
 $ ip netns add bar
 $ ip -n foo netns set bar 15
 $ ip -n foo link add ipip1 link-netnsid 15 type ipip remote 10.16.0.121 local 10.16.0.249
 $ ip -n foo link ls ipip1
 3: ipip1@NONE: <POINTOPOINT,NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default
     link/ipip 10.16.0.249 peer 10.16.0.121 link-netnsid 15
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

The kernel now provides ids for peer netns. This patch implements a new command
'set' to assign an id.
When netns are listed, if an id is assigned, it is now displayed.

Example:
 $ ip netns add foo
 $ ip netns set foo 1
 $ ip netns
 foo (id: 1)
 init_net
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>

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

Just to be aligned with the usage output.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Signed-off-by: Bryton Lee <brytonlee01@gmail.com>

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

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

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

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

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

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

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

Seems expression parser did not work correctly some
long time and such simple things did not work too:

    # ss -a '( sport = :ssh )'
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Add net_namespace.h and update other headers

Added new '-N NSNAME, --net=NSNAME' option to show socket stats
from the specified network namespace name.
Signed-off-by: Vadim Kochan <vadim4j@gmail.com>

Add section for additional arguments to GRE, IPIP, and SIT types
that are related to Foo-over-UDP and Generic UDP Encapsulation.
Also, added an example GUE configuration in the examples section.
Signed-off-by: Tom Herbert <therbert@google.com>

This patch adds support to remote checksum checksum offload
confinguration for IPIP, SIT, and GRE tunnels. This patch
adds a [no]encap-remcsum to ip link command which applicable
when configured tunnels that use GUE.

http://tools.ietf.org/html/draft-herbert-remotecsumoffload-00

Example:

ip link add name tun1 type gre remote 192.168.1.1 local 192.168.1.2 \
   ttl 225 encap fou encap-sport auto encap-dport 7777 encap-csum \
   encap-remcsum

This would create an GRE tunnel in GUE encapsulation where the source
port is automatically selected (based on hash of inner packet),
checksums in the encapsulating UDP header are enabled (needed.for
remote checksum offload), and remote checksum ffload is configured to
be used on the tunnel (affects TX side).
Signed-off-by: Tom Herbert <therbert@google.com>