When we fork a pidns init there's no need in specifying its pid,
as it will be autogenerated to 1. Clean the code not to mess with
the last_pid sysctl at all in that case, rather than just omitting
the write into it.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

A test will be executed in new set of namespaces if the environment
variable ZDTM_NEWNS is set. A pid of the root task will be written in
$ZDTM_PIDFILE and a root fyle system will be changed on $ZDTM_ROOT.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

When we restore a pid namespace the root task will get some unknown pid
in the original (i.e. -- the ns crtools a launched from) one. To find
this pid out one can use this option -- it will make the pid obtained by
the new init to be written into a pid file.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

It's required for compiling on RHEL6
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

If netns is dumped, crtools fails if it collects unsupported sockets.

If netns isn't dumped, crtools will fail only
if an unsupported socket should be dumped.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Most part of services (ssh, httpd, ...) create two separate sockets
one for ipv4 and one for ipv6. If IPV6_V6ONLY isn't dumped, bind() returns
EADDRINUSE

v2: use do_dump_opt and initialize yes = 1
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Now crtools checks address, but it may be zero. For example,
a listen socket is bound to zero address to accept connections
from any addresses.

v2: add a comment about zero port
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

It doesn't makemuch sense in pulling this further. The generic genid generation seems to
be enough for eny file type.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

There is no need in 6 receive callbacks -- we can find out family and protocol
(and thus -- type) out of the inet_diag_req_v2 passed through transparent arg
of nlk request engine.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

There are more in test/ (and checkpatch.pl crashes in the middle =),
but seem to be all.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

All sockets should be collected in a target net name-space when the -n net
is specified.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

To test futex robust list C/R.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

This patch introduces ThreadCoreEntry protobuf structure which is to carry
thread-specific arch-independent information.

Now put there the c/r futex robust lists.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

The call will then have to handle this end (put into a bridge).
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

The peer device is named veth_host and is supposed to be pushed outside
the netns being restored for proper host-side configuration.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Veth will fill the linkinfo part for peer.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

The name will be valid for new veth, mtu has to be restored for all devices.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

We need to add payload to NEWLINK request and will have to work with it outside the
restore_one_link fn.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

This one is required to say, that we do want a new device is it doesn't exists.
This is so for all the devices except lo.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

These devices can be distinguished by type ETHER and kind "veth".
Some problems with peer detection exists (described in comment), but
we cannot handle them at the moment.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Add more helpers that manage nla blobs (taken from iproute2 tool). Need for veth support.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

This field was lost while switching to protobuf -- the vma images
were used by parasite as plain array and it was easier to reseve
this space in the image. Now it's too late to change this, so make
it be -1 always.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Bug introduced by 27d62237. Sorry about it :(
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Will need them for futex robust list c/r.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

We use repeated u32 field for IPv* address. For ipv4 there's 1 element
in it, for ipv6 -- 4. Validate these sizes in image and check that
sockaddr_in* elements sizes match.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Let's carry only on uint_32 for IPv4 address.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Use # for both and don't use fixed field width for 32bit one (as they are
most likely just some values, while the 64bit is some address which is better
to be printed with full width).
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Wrong pointer was checked against NULL and default value. This resulted
in lost tc part of the core message in show output.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

The devpts fs should be mounted and its content is restored,
when crtools restores terminals.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

Reported-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

When dumping a tmpfs mount we need to take its contents with us.
So, use tar for it and put it into the image dir.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>