this enables lxc to perform "disk-less migrations" where memory pages are sent directly to the destination machine instead of being written to the sources filesystem first.
For this, the migrate_opts struct has been added the strings "pageserver_address" and "pageserver_port" so that criu can be told where to look for a pageserver.
Signed-off-by: Niklas Eiling <niklas.eiling@rwth-aachen.de>

fix possible buffer overflow

Signed-off-by: Niklas Eiling <niklas.eiling@rwth-aachen.de>

update Debian release names

Squeeze is EOL now, Stretch is the upcoming stable
Signed-off-by: Evgeni Golov <evgeni@golov.de>

strncat only returns its first argument and not the end of the written string.
Thus "buf-pos" is always 0 and consquently no range check is performed.
Signed-off-by: Niklas Eiling <niklas.eiling@rwth-aachen.de>

use smarter error handling for lxc_strmmap()

Signed-off-by: Christian Brauner <christian.brauner@mailbox.org>

also ingore *.so.*

Additionally, fix the comment for lxc_strmmap() and cleanup #includes in
utils.{c,h}.
Signed-off-by: Christian Brauner <christian.brauner@mailbox.org>

Signed-off-by: Christian Brauner <christian.brauner@mailbox.org>

lxc-ubuntu: Fix building on secondary architectures

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

add funs to mmap() files to \0-terminated strings

Rename lxc_mmap()/lxc_munmap() to lxc_strmmap()/lxc_strmunmap().
Signed-off-by: Christian Brauner <christian.brauner@mailbox.org>

Signed-off-by: Christian Brauner <christian.brauner@mailbox.org>

In order to do this we make use of the MAP_FIXED flag of mmap(). MAP_FIXED
should be safe to use when it replaces an already existing mapping. To this
end, we establish an anonymous mapping that is one byte larger than the
underlying file. The pages handed to us are zero filled.  Now we establish a
fixed-address mapping starting at the address we received from our anonymous
mapping and replace all bytes excluding the additional \0-byte with the file.
This allows us to use normal string-handling function. The idea implemented
here is similar to how shared libraries are mapped.
Signed-off-by: Christian Brauner <christian.brauner@mailbox.org>

start: only use host's /dev/null when absolutely necessary

See comments for details, but basically, only use the host's /dev/null when
absolutely necessary (i.e. there is no reasonable /dev/null in the
container).
Signed-off-by: Tycho Andersen <tycho.andersen@canonical.com>

always provide a default mirror for debootstraping Ubuntu

only enable Debian's main repository by default

This inverts the logic done in c2a85d04 to default to "main only" and allow enabling contrib and non-free on user request.

Closes: #625
Signed-off-by: Evgeni Golov <evgeni@debian.org>

debootstrap sometimes selects the wrong mirror due to [1]

[1] https://bugs.debian.org/819300Signed-off-by: Evgeni Golov <evgeni@debian.org>

use httpredir.debian.org as the default Debian mirror

http.debian.net is an alias anyways and httpredir.debian.org is the official name of the service
Signed-off-by: Evgeni Golov <evgeni@debian.org>

Timezone inside the container is not the same as the host

Fix installation of out-of-tree (VPATH) builds

In OL6, it is missing /etc/sysconfig/clock
Tested-by: Deepak Patel <deepak.patel@oracle.com>
Signed-off-by: Thomas Tanaka <thomas.tanaka@oracle.com>

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>

Fix daemonized containers without autodev and/or /dev mount

Sometimes, a container doesn't have /dev/null.
For example, I have this problem with Android container.

This fixes #910 (github) for me.
Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>

The warning has been present since commit 32b37181 (with no purpose stated).
Support for dynamically linked Busybox has been added since commit bf6cc736.
Haven't encountered any issues with dynamically linked Busybox in my last
2 years' testing.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

lxc.spec.in: fixed hardcoded path to lxc-net config file

This gives more meaningful error message than "invalid sequence".
Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>

Signed-off-by: Aleksandr Mezin <mezin.alexander@gmail.com>

Signed-off-by: Johannes Kastl <git@ojkastl.de>

lxc-busybox: Touch /etc/fstab in the container rootfs

Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com>