Update from 4.6-rc3

devlink binary is built

Follow-up for kernel commit 8eb3b99554b8 ("geneve: support setting
IPv6 flow label") to allow setting the label for the device config.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Follow-up for kernel commit e7f70af111f0 ("vxlan: support setting
IPv6 flow label") to allow setting the label for the device config.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

Add new tool called devlink which is userspace counterpart of devlink
Netlink socket.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>

Rename hlist.h to list.h while adding it to be aligned with kernel
Signed-off-by: Jiri Pirko <jiri@mellanox.com>

Enable support for configuring outer UDP checksums on Geneve tunnels:

ip link add type geneve id 10 remote 10.0.0.2 udpcsum
Signed-off-by: Jesse Gross <jesse@kernel.org>

On recent kernels, UDP checksum computation has become more efficient and
the default behavior was changed, however, the ip command overrides this
by always specifying a particular behavior.

If the user does not specify that UDP checksums should either be computed
or not then we don't need to send an explicit netlink message - the kernel
can just use its default behavior.
Signed-off-by: Jesse Gross <jesse@kernel.org>

Run script that removes trailing whitespace everywhere.

An attempt to add invalid address to interface would print "???" string
instead of the address family name.

For example:
$ ip address add 256.10.166.1/24 dev ens8
Error: ??? prefix is expected rather than "256.10.166.1/24".

$ ip neighbor add proxy 2001:db8::g dev ens8
Error: ??? address is expected rather than "2001:db8::g".

With this patch the output will look like:
$ ip address add 256.10.166.1/24 dev ens8
Error: inet prefix is expected rather than "256.10.166.1/24".

$ ip neighbor add proxy 2001:db8::g dev ens8
Error: inet6 address is expected rather than "2001:db8::g".
Signed-off-by: Przemyslaw Szczerbik <przemyslawx.szczerbik@intel.com>
Signed-off-by: Marco Varlese <marco.varlese@intel.com>

Apart from making the code a bit more compact and efficient, this also
prevents a potential buffer overflow if the passed buffer is really too
small: Although correctly decrementing the size parameter passed to
snprintf, it could become negative which would then wrap since snprintf
uses (unsigned) size_t for the parameter.
Signed-off-by: Phil Sutter <phil@nwl.cc>

This simple macro eases calling rt_addr_n2a() with data from an rt_attr
pointer.
Signed-off-by: Phil Sutter <phil@nwl.cc>

This simple macro eases calling format_host() with data from an rt_attr
pointer.
Signed-off-by: Phil Sutter <phil@nwl.cc>

There is only a single user who needs it to be reentrant (not really,
but it's safer like this), add rt_addr_n2a_r() for it to use.
Signed-off-by: Phil Sutter <phil@nwl.cc>

There are only three users which require it to be reentrant, the rest is
fine without. Instead, provide a reentrant format_host_r() for users
which need it.
Signed-off-by: Phil Sutter <phil@nwl.cc>

Signed-off-by: Phil Sutter <phil@nwl.cc>

This adds two helper functions which map a given data field to a color,
so color_fprintf() statements don't have to be duplicated with only a
different color value depending on that data field's value. In order for
this to work in a generic way, COLOR_CLEAR has been added to serve as a
fallback default of uncolored output.
Signed-off-by: Phil Sutter <phil@nwl.cc>

This should be made generic and part of a common tc-actions man page.
Though leave it here for now to not confuse readers of the example which
uses it.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

As Jamal pointed out, there are two different approaches to bandwidth
measurement. Try to make this clear by separating them in synopsis and
also documenting the way to fine-tune avrate.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

As Jamal suggested, BRANCH is the wrong name, as these keywords go
beyond simple branch control - e.g. loops are possible, too. Therefore
rename the non-terminal to CONTROL instead which should be more
appropriate.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

This is not a full test, since kernel functionality is not actually
tested. It only compares that the kernel returned values when listing
the action are what one expects them to be.

Since this test succeeded on both a little-endian and a big-endian
system, it shows that any endianness issues have been resolved in
tc/p_ip.c at least.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

The retain value was wrong for u16 and u8 types.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

This was tricky to get right:
- The 'stride' value used for 8 and 16 bit values must behave inverse to
  the value's intra word offset to work correctly with big-endian data
  act_pedit is editing.
- The 'm' array's values are in host byte order, so they have to be
  converted as well (and the ordering was just inverse, for some
  reason).
- The only sane way of getting this right is to manipulate value/mask in
  host byte order and convert the output.
- TIPV4 (i.e. 'munge ip src/dst') had it's own pitfall: the address
  parser converts to network byte order automatically. This patch fixes
  this by converting it back before calling pack_key32, which is a hack
  but at least does not require to implement a completely separate code
  flow.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Break overlong function definitions and remove one extraneous
whitespace.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>

Add support for ignore route attribute, and refine the code to use
rta_getattr_* function to get attribute value.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

Update this manual to add attributes proxy_neigh and
ignore_routes_with_linkdown.
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>

The number of casts in macro was excessive.

More checkpatch spring cleaning

Use checkpatch auto fix to cleanup lingering style issues

Run all the ip code through checkpatch and have it fix the obvious stuff.

Use checkpatch to fix whitespace and other style issues.

Signed-off-by: Luca Lemmo <luca@linux.com>

Signed-off-by: Luca Lemmo <luca@linux.com>

Signed-off-by: Luca Lemmo <luca@linux.com>