Some libc implementation (bionic) is lacking some of the syscall functions
that are present in the glibc.

For those, detect at build time the they are missing and implement a minimal
syscall() wrapper that will essentially give the same result as the glibc
function.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Some platforms don't have personality.h in their C library, this change
adds buildtime detection for the header and turns off the personality setting
code in those cases.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

In the effort to make LXC work with non-standard Linux distros, this change
allows for the user to build LXC without capability support through a new
--disable-capabilities option to configure.

This effectively will cause LXC not to link against libcap and will turn all
the _cap_ functions into no-ops.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

bionic is missing an openpty() function, so ship our own and only
build it and use it on bionic.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

The clone() call in bionic is very slightly different.
This updates namespace.h to support both glibc and bionic.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

LO_FLAGS_AUTOCLEAR isn't defined on bionic, so add an extra ifndef
and set it to its usual value if it's not.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

While cross-building with bionic, a number of failures were triggered by some
missing includes and in a few cases by extra unused includes.

This commit updates the various headers based on those observations.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

get_current_dir_name appears to be specific to glibc. Replace that call
by an equivalent getcwd call.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

When building on bionic, -lrt and -lutil only cause a build failure.
Dropping those fixes the build, so it appears that the symbols are defined
in the main library.

This commit moves -lrt and -lutil under a !IS_BIONIC check.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Some libc implementations don't have the getline function but instead
have an equivalent fgetln function.

Add code to detect both and use whatever is available.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

ushort appears to be a glibc specific type which doesn't exist in
bionic, this commit simply replace all occurences by the equivalent
unsigned short type.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

This commit doesn't do any functional change to configure.ac but does a fair
amount of cleaning up.

It re-orders the various blocks by type (options, checks, expands, ...).
It also consistently uses tabs for indents.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

This adds a new IS_BIONIC define that can be used to detect whether we are
building with eglibc or with bionic.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

According to docs, mknod clears each permission bit whose
corresponding bit in the process umask is set, so we should fix it
before creating device nodes.
Signed-off-by: Alexander Vladimirov <alexander.idkfa.vladimirov@gmail.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

The Url for the fedora-release RPM changed in release 17.
Signed-off-by: Maximilian Seesslen <mes@seesslen.net>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

We must output the lines from 'ps' in same order for tree views.

Fix also --lxc option to only show processes from containers.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

The \e did not work as expected on dash. Replace with proper posix \033
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

These states are kept by the kernel in the freezer.state cgroup item, and
are never set in handler->state with lxc_set_state(). If lxc transitions
a container to/from the freezer after an lxc-wait for one of the above
states has already started, the lxc-wait will never see the new state. This
change has lxc send the new state to the lxc-monitor socket.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Also: disable the interactive part of ovmd so ol5,6 containers won't
hang if started for the first time with -d. Don't let containers do rawio,
or have access to /dev/rtc0, they can mess up the hosts system clock among
other things.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

lxc-start -c makes the named file/device the container's console, but using
this with a regular file in order to get a log of the console output does
not work very well if you also want to login on the console. This change
implements an additional option (-L) to simply log the console's output to
a file.

Both options can be used separately or together. For example to get a usable
console and log: lxc-start -n name -c /dev/tty8 -L console.log

The console state is cleaned up more when lxc_delete_console is called, and
some of the clean up paths in lxc_create_console were fixed.

The lxc_priv and lxc_unpriv macros were modified to make use of gcc's local
label feature so they can be expanded more than once in the same function.
Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

The previous lxc-shutdown change replaced 'kill SIG<name>' by
'kill -s SIG<name>'. Although this works with busybox where it was tested,
this doesn't actually work with all kill implementations. Some requiring just
the signal name without the prefix.

This changes "-s SIG<name>" by just "-s <name>". Tested with busybox and
standard kill.
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

Let users append a list of packages they want install in the container
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

This allows us to lxc-create 32 bit guests on x86_64 hosts.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

This allows specifying what repository to use for the container.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Make sure we actually install lxc-alpine
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Use awk to parse the output pf 'ps' and the tasks files for the
containers.

Use awk fields to find PID column rather than assume that the PID field
is exactly 5 chars wide and has a leading space ' PID'. This works as
long as the PID field is before the command or other field that include
spaces. This also makes it work with busybox 'ps'.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

- avoid getopt --longoptions
- use 'which' instead of 'type' to detect existance of tools
- specify -s SIG<signame> with kill
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

We now have the possibility to test for a given state. Use this feature
instead of parsing output with grep or awk
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

We cannot assume that the mount source name always starts with 'cgroup'
so we check the filesystem type instead.

Use 'awk' instead of 'grep -E' and  as it is a better tool for this job.

This fixes the tool on systems using openrc.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

We cannot assume that the mount source name always starts with 'cgroup'
so we check the filesystem type instead.

Use 'awk' instead of 'grep -E' and  as it is a better tool for this job.

This fixes the tool on systems using openrc.
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Use arch-install-scripts for installation.
Signed-off-by: Alexander Vladimirov <alexander.idkfa.vladimirov@gmail.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

- use case .. in instead of comparison with globs
- avoid 'local'
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

- avoid getopt --longoptions
- use 'which' instead of 'type' to detect existance of tools
- use 'grep -q -w' instead of bash substring variable expansion
  ${line:0:18}
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

- use case .. in instead of comparison with globs
- avoid 'local'

While here, also avoid 'find ... -printf' which is not supported on busybox
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>

- avoid use getopt --longoptions
Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>