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Installation Instructions
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"host" platform (i.e., that on which the generated programs will
eventually be run) with `--host=TYPE'.
Sharing Defaults
================
If you want to set default values for `configure' scripts to share, you
can create a site shell script called `config.site' that gives default
values for variables like `CC', `cache_file', and `prefix'.
`configure' looks for `PREFIX/share/config.site' if it exists, then
`PREFIX/etc/config.site' if it exists. Or, you can set the
`CONFIG_SITE' environment variable to the location of the site script.
A warning: not all `configure' scripts look for a site script.
Defining Variables
==================
Variables not defined in a site shell script can be set in the
environment passed to `configure'. However, some packages may run
configure again during the build, and the customized values of these
variables may be lost. In order to avoid this problem, you should set
them in the `configure' command line, using `VAR=value'. For example:
./configure CC=/usr/local2/bin/gcc
causes the specified `gcc' to be used as the C compiler (unless it is
overridden in the site shell script).
Unfortunately, this technique does not work for `CONFIG_SHELL' due to
an Autoconf bug. Until the bug is fixed you can use this workaround:
CONFIG_SHELL=/bin/bash /bin/bash ./configure CONFIG_SHELL=/bin/bash
`configure' Invocation
======================
`configure' recognizes the following options to control how it operates.
`--help'
`-h'
Print a summary of the options to `configure', and exit.
`--version'
`-V'
Print the version of Autoconf used to generate the `configure'
script, and exit.
`--cache-file=FILE'
Enable the cache: use and save the results of the tests in FILE,
traditionally `config.cache'. FILE defaults to `/dev/null' to
disable caching.
`--config-cache'
`-C'
Alias for `--cache-file=config.cache'.
`--quiet'
`--silent'
`-q'
Do not print messages saying which checks are being made. To
suppress all normal output, redirect it to `/dev/null' (any error
messages will still be shown).
`--srcdir=DIR'
Look for the package's source code in directory DIR. Usually
`configure' can determine that directory automatically.
`configure' also accepts some other, not widely useful, options. Run
`configure --help' for more details.

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Makefile.am Normal file
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# Makefile.am
SUBDIRS = src test etc
DIST_SUBDIRS = config src test etc
EXTRA_DIST = lxc.spec
rpm: dist
rpmbuild --clean -ta ${distdir}.tar.gz

0
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275
README Normal file
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Linux Container - LXC:
----------------------
This document provides a quick help to use the linux container.
Change log:
-----------
version 0.1.0 : initial document, Daniel Lezcano <dlezcano@fr.ibm.com>, Aug 01, 2008
Contents:
---------
0) Quick start
1) Overview
2) Requirements
3) Functional Specification
4) Future work
0) Quick start
--------------
You are in a hurry, and you don't want to read this README. Ok,
without warranty, here are the commands to launch a shell inside a
container with a predefined configuration template, it may work.
lxc-create -n foo -f /etc/lxc/lxc-macvlan.conf
lxc-execute -n foo /bin/bash
When your bash exits, you don't have to create 'foo' again, just call
lxc-execute again.
1) Overview
-----------
The container technology is actively being pushed into the mainstream
linux kernel. It provides the resource management through the control
groups aka process containers and resource isolation through the
namespaces.
The LXC aims to use these new functionnalities to provide an userspace
container object which provides full resource isolation and resource
control for an applications or a system.
The first objective of this project is to make the life easier for the
kernel developpers involved in the containers project and especially
to continue working on the Checkpoint/Restart new features. The LXC is
small enough to easily manage a container with simple command lines
and complete enough to be used for other purposes.
2) Requirements
---------------
The LXC relies on a set of functionnalies provided by the kernel which
needs to be active. Depending of the missing functionnality the LXC
will work with a restricted number of functionnality or will simply
fails.
This is the list of the kernel features which needs to be compiled in:
* General
* Control Group support
-> namespace cgroup subsystem
-> cpuset support
-> Group CPU scheduler
-> control group freeze subsystem
-> Basis for grouping tasks (Control Groups)
-> Simple CPU accounting
-> Resource counters
-> Memory resource controllers for Control Groups
-> Namespace support
-> UTS namespace
-> IPC namespace
-> User namespace
-> Pid namespace
* Network support
-> Networking options
-> Network namespace support
For the moment the easiest way to have all the features in the kernel
is to use the git tree at:
git://git.kernel.org/pub/scm/linux/kernel/git/daveh/linux-2.6-lxc.git
Otherwise the latest version of 2.6.26 kernel is usable with LXC but
without sysfs if the network namespace is activated and without the
freezer subsystem.
Before using LXC, the system should be configured as followed:
* Control group file system must be mounted
mount -t cgroup cgroup /cgroup
* You must have root privileges
3) Functional Specification
---------------------------
A container is an object where the configuration is persistent. The
application will be launched inside this container and it will
use the configuration which was previously created.
3.1 Container life cycle
------------------------
When the container is created, it contains the configuration
information. When a process is launched, the container will be
starting and running. When the last process running inside the
container exits, the container is stopped.
In case of failure when the container is initialized, it will pass
through the aborting state.
---------
| STOPPED |<---------------
--------- |
| |
start |
| |
V |
---------- |
| STARTING |--error- |
---------- | |
| | |
V V |
--------- ---------- |
| RUNNING | | ABORTING | |
--------- ---------- |
| | |
no process | |
| | |
V | |
---------- | |
| STOPPING |<------- |
---------- |
| |
---------------------
3.2 Configuration file
----------------------
The configuration file has the following format:
--------------------------------------------------------------------------------
# the fstab mount file.
lxc.mount = ./fstab
# the hostname to be set into the container
lxc.utsname = virtnode
# the chroot if needed for the running application
lxc.chroot = /mnt/root
# The network has several of kind of configuration:
#
# * veth : the network will use the veth virtual device, the
# specified link must be a bridge
# * macvlan : the network will use the macvlan device, the specified
# link should be an existing interface, usually it is
# eth0
# * phys : the network will use a physical network device, the
# specified link should be an existing interface
lxc.network.type = macvlan
# specify the flags to be used for the network, actually only <up> is
# allowed which mean the network should be set up when created. If the
# network is set up, the loopback is automatically set up too.
lxc.network.flags = up
# specify the physical network device which will communicate with the
# outside world
lxc.network.link = eth0
# NIC ethernet mac address
lxc.network.hwaddr = 4a:49:43:49:79:bd
# specify the ipv4 address of the container. Several lines are allowed
# and will mean several addresses will be assigned to the interface
lxc.network.ipv4 = 1.2.3.5/24
# specify the ipv6 address of the container. Several lines are allowed
# and will mean several addresses will be assigned to the interface
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3596
--------------------------------------------------------------------------------
* lxc.mount is optional
* lxc.utsname is optional
* lxc.network.xxx are optional, if not specified, the network
namespace will not be created
* lxc.chroot is optional
3.3 Container creation
----------------------
The container is created via the 'lxc-create' command. The command
specifies the container name and the container configuration file.
lxc-create -n foo -f <config>
3.4 Starting a container
------------------------
As the container has been create with the lxc-create command, it is
possible now to start an application inside.
lxc-execute -n foo /bin/bash
When the application has exited, it is possible to continue using the
container configuration to launch another application.
3.5 Stopping a container
------------------------
Usually, a container stops when the last process exits but in some
cases, it is usefully to wipe out such application. The following
command will kill the processes.
lxc-stop -n foo
3.6 Freezing/Unfreezing a container
-----------------------------------
All the processes belonging to a container can be stopped and resumed.
lxc-freeze -n foo
lxc-unfreeze -n foo
3.7 Sending a signal to a container
-----------------------------------
A signal can be sent to all processes running inside the container.
lxc-kill -n foo -s <signal>
3.8 Monitoring container states
-------------------------------
A container has a life cycle and pass though different states as
defined in section 3.1. The following command allows to watch such
states for a specific container.
lxc-monitor -n foo
3.9 Getting the container state
-------------------------------
At any time, the following command will retrieve the state of the
container.
lxc-state -n foo
3.10 Showing processes list for a container
------------------------------------------
The following command will show all the processes for all the running
container.
lxc-ps
4) Future work
--------------
* change the lxc-start command to support system container
* change the lxc-execute to have the first process to exec
* take into account all the resource management
* man pages
* improve monitoring support
* and more :)

0
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11
bootstrap Executable file
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#!/bin/sh
set -x
test -d autom4te.cache && rm -rf autom4te.cache
ACLOCAL_AMFLAGS="-I config $ACLOCAL_AMFLAGS"
aclocal $ACLOCAL_AMFLAGS || exit 1
autoheader || exit 1
autoconf || exit 1
automake --add-missing --copy || exit 1

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config/.cvsignore Normal file
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Makefile
Makefile.in

0
config/Makefile.am Normal file
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1500
config/config.guess vendored Executable file
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1616
config/config.sub vendored Executable file
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584
config/depcomp Executable file
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#! /bin/sh
# depcomp - compile a program generating dependencies as side-effects
scriptversion=2006-10-15.18
# Copyright (C) 1999, 2000, 2003, 2004, 2005, 2006 Free Software
# Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
case $1 in
'')
echo "$0: No command. Try \`$0 --help' for more information." 1>&2
exit 1;
;;
-h | --h*)
cat <<\EOF
Usage: depcomp [--help] [--version] PROGRAM [ARGS]
Run PROGRAMS ARGS to compile a file, generating dependencies
as side-effects.
Environment variables:
depmode Dependency tracking mode.
source Source file read by `PROGRAMS ARGS'.
object Object file output by `PROGRAMS ARGS'.
DEPDIR directory where to store dependencies.
depfile Dependency file to output.
tmpdepfile Temporary file to use when outputing dependencies.
libtool Whether libtool is used (yes/no).
Report bugs to <bug-automake@gnu.org>.
EOF
exit $?
;;
-v | --v*)
echo "depcomp $scriptversion"
exit $?
;;
esac
if test -z "$depmode" || test -z "$source" || test -z "$object"; then
echo "depcomp: Variables source, object and depmode must be set" 1>&2
exit 1
fi
# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
depfile=${depfile-`echo "$object" |
sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
rm -f "$tmpdepfile"
# Some modes work just like other modes, but use different flags. We
# parameterize here, but still list the modes in the big case below,
# to make depend.m4 easier to write. Note that we *cannot* use a case
# here, because this file can only contain one case statement.
if test "$depmode" = hp; then
# HP compiler uses -M and no extra arg.
gccflag=-M
depmode=gcc
fi
if test "$depmode" = dashXmstdout; then
# This is just like dashmstdout with a different argument.
dashmflag=-xM
depmode=dashmstdout
fi
case "$depmode" in
gcc3)
## gcc 3 implements dependency tracking that does exactly what
## we want. Yay! Note: for some reason libtool 1.4 doesn't like
## it if -MD -MP comes after the -MF stuff. Hmm.
## Unfortunately, FreeBSD c89 acceptance of flags depends upon
## the command line argument order; so add the flags where they
## appear in depend2.am. Note that the slowdown incurred here
## affects only configure: in makefiles, %FASTDEP% shortcuts this.
for arg
do
case $arg in
-c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
*) set fnord "$@" "$arg" ;;
esac
shift # fnord
shift # $arg
done
"$@"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
mv "$tmpdepfile" "$depfile"
;;
gcc)
## There are various ways to get dependency output from gcc. Here's
## why we pick this rather obscure method:
## - Don't want to use -MD because we'd like the dependencies to end
## up in a subdir. Having to rename by hand is ugly.
## (We might end up doing this anyway to support other compilers.)
## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
## -MM, not -M (despite what the docs say).
## - Using -M directly means running the compiler twice (even worse
## than renaming).
if test -z "$gccflag"; then
gccflag=-MD,
fi
"$@" -Wp,"$gccflag$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
echo "$object : \\" > "$depfile"
alpha=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
## The second -e expression handles DOS-style file names with drive letters.
sed -e 's/^[^:]*: / /' \
-e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
## This next piece of magic avoids the `deleted header file' problem.
## The problem is that when a header file which appears in a .P file
## is deleted, the dependency causes make to die (because there is
## typically no way to rebuild the header). We avoid this by adding
## dummy dependencies for each header file. Too bad gcc doesn't do
## this for us directly.
tr ' ' '
' < "$tmpdepfile" |
## Some versions of gcc put a space before the `:'. On the theory
## that the space means something, we add a space to the output as
## well.
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp)
# This case exists only to let depend.m4 do its work. It works by
# looking at the text of this script. This case will never be run,
# since it is checked for above.
exit 1
;;
sgi)
if test "$libtool" = yes; then
"$@" "-Wp,-MDupdate,$tmpdepfile"
else
"$@" -MDupdate "$tmpdepfile"
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
echo "$object : \\" > "$depfile"
# Clip off the initial element (the dependent). Don't try to be
# clever and replace this with sed code, as IRIX sed won't handle
# lines with more than a fixed number of characters (4096 in
# IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
# the IRIX cc adds comments like `#:fec' to the end of the
# dependency line.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' | \
tr '
' ' ' >> $depfile
echo >> $depfile
# The second pass generates a dummy entry for each header file.
tr ' ' '
' < "$tmpdepfile" \
| sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
>> $depfile
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
aix)
# The C for AIX Compiler uses -M and outputs the dependencies
# in a .u file. In older versions, this file always lives in the
# current directory. Also, the AIX compiler puts `$object:' at the
# start of each line; $object doesn't have directory information.
# Version 6 uses the directory in both cases.
stripped=`echo "$object" | sed 's/\(.*\)\..*$/\1/'`
tmpdepfile="$stripped.u"
if test "$libtool" = yes; then
"$@" -Wc,-M
else
"$@" -M
fi
stat=$?
if test -f "$tmpdepfile"; then :
else
stripped=`echo "$stripped" | sed 's,^.*/,,'`
tmpdepfile="$stripped.u"
fi
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
if test -f "$tmpdepfile"; then
outname="$stripped.o"
# Each line is of the form `foo.o: dependent.h'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed -e "s,^$outname:,$object :," < "$tmpdepfile" > "$depfile"
sed -e "s,^$outname: \(.*\)$,\1:," < "$tmpdepfile" >> "$depfile"
else
# The sourcefile does not contain any dependencies, so just
# store a dummy comment line, to avoid errors with the Makefile
# "include basename.Plo" scheme.
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
icc)
# Intel's C compiler understands `-MD -MF file'. However on
# icc -MD -MF foo.d -c -o sub/foo.o sub/foo.c
# ICC 7.0 will fill foo.d with something like
# foo.o: sub/foo.c
# foo.o: sub/foo.h
# which is wrong. We want:
# sub/foo.o: sub/foo.c
# sub/foo.o: sub/foo.h
# sub/foo.c:
# sub/foo.h:
# ICC 7.1 will output
# foo.o: sub/foo.c sub/foo.h
# and will wrap long lines using \ :
# foo.o: sub/foo.c ... \
# sub/foo.h ... \
# ...
"$@" -MD -MF "$tmpdepfile"
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile"
exit $stat
fi
rm -f "$depfile"
# Each line is of the form `foo.o: dependent.h',
# or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
# Do two passes, one to just change these to
# `$object: dependent.h' and one to simply `dependent.h:'.
sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
# Some versions of the HPUX 10.20 sed can't process this invocation
# correctly. Breaking it into two sed invocations is a workaround.
sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" |
sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
hp2)
# The "hp" stanza above does not work with aCC (C++) and HP's ia64
# compilers, which have integrated preprocessors. The correct option
# to use with these is +Maked; it writes dependencies to a file named
# 'foo.d', which lands next to the object file, wherever that
# happens to be.
# Much of this is similar to the tru64 case; see comments there.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir.libs/$base.d
"$@" -Wc,+Maked
else
tmpdepfile1=$dir$base.d
tmpdepfile2=$dir$base.d
"$@" +Maked
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," "$tmpdepfile" > "$depfile"
# Add `dependent.h:' lines.
sed -ne '2,${; s/^ *//; s/ \\*$//; s/$/:/; p;}' "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile" "$tmpdepfile2"
;;
tru64)
# The Tru64 compiler uses -MD to generate dependencies as a side
# effect. `cc -MD -o foo.o ...' puts the dependencies into `foo.o.d'.
# At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
# dependencies in `foo.d' instead, so we check for that too.
# Subdirectories are respected.
dir=`echo "$object" | sed -e 's|/[^/]*$|/|'`
test "x$dir" = "x$object" && dir=
base=`echo "$object" | sed -e 's|^.*/||' -e 's/\.o$//' -e 's/\.lo$//'`
if test "$libtool" = yes; then
# With Tru64 cc, shared objects can also be used to make a
# static library. This mechanism is used in libtool 1.4 series to
# handle both shared and static libraries in a single compilation.
# With libtool 1.4, dependencies were output in $dir.libs/$base.lo.d.
#
# With libtool 1.5 this exception was removed, and libtool now
# generates 2 separate objects for the 2 libraries. These two
# compilations output dependencies in $dir.libs/$base.o.d and
# in $dir$base.o.d. We have to check for both files, because
# one of the two compilations can be disabled. We should prefer
# $dir$base.o.d over $dir.libs/$base.o.d because the latter is
# automatically cleaned when .libs/ is deleted, while ignoring
# the former would cause a distcleancheck panic.
tmpdepfile1=$dir.libs/$base.lo.d # libtool 1.4
tmpdepfile2=$dir$base.o.d # libtool 1.5
tmpdepfile3=$dir.libs/$base.o.d # libtool 1.5
tmpdepfile4=$dir.libs/$base.d # Compaq CCC V6.2-504
"$@" -Wc,-MD
else
tmpdepfile1=$dir$base.o.d
tmpdepfile2=$dir$base.d
tmpdepfile3=$dir$base.d
tmpdepfile4=$dir$base.d
"$@" -MD
fi
stat=$?
if test $stat -eq 0; then :
else
rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
exit $stat
fi
for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3" "$tmpdepfile4"
do
test -f "$tmpdepfile" && break
done
if test -f "$tmpdepfile"; then
sed -e "s,^.*\.[a-z]*:,$object:," < "$tmpdepfile" > "$depfile"
# That's a tab and a space in the [].
sed -e 's,^.*\.[a-z]*:[ ]*,,' -e 's,$,:,' < "$tmpdepfile" >> "$depfile"
else
echo "#dummy" > "$depfile"
fi
rm -f "$tmpdepfile"
;;
#nosideeffect)
# This comment above is used by automake to tell side-effect
# dependency tracking mechanisms from slower ones.
dashmstdout)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
test -z "$dashmflag" && dashmflag=-M
# Require at least two characters before searching for `:'
# in the target name. This is to cope with DOS-style filenames:
# a dependency such as `c:/foo/bar' could be seen as target `c' otherwise.
"$@" $dashmflag |
sed 's:^[ ]*[^: ][^:][^:]*\:[ ]*:'"$object"'\: :' > "$tmpdepfile"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
tr ' ' '
' < "$tmpdepfile" | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
dashXmstdout)
# This case only exists to satisfy depend.m4. It is never actually
# run, as this mode is specially recognized in the preamble.
exit 1
;;
makedepend)
"$@" || exit $?
# Remove any Libtool call
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# X makedepend
shift
cleared=no
for arg in "$@"; do
case $cleared in
no)
set ""; shift
cleared=yes ;;
esac
case "$arg" in
-D*|-I*)
set fnord "$@" "$arg"; shift ;;
# Strip any option that makedepend may not understand. Remove
# the object too, otherwise makedepend will parse it as a source file.
-*|$object)
;;
*)
set fnord "$@" "$arg"; shift ;;
esac
done
obj_suffix="`echo $object | sed 's/^.*\././'`"
touch "$tmpdepfile"
${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
rm -f "$depfile"
cat < "$tmpdepfile" > "$depfile"
sed '1,2d' "$tmpdepfile" | tr ' ' '
' | \
## Some versions of the HPUX 10.20 sed can't process this invocation
## correctly. Breaking it into two sed invocations is a workaround.
sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' | sed -e 's/$/ :/' >> "$depfile"
rm -f "$tmpdepfile" "$tmpdepfile".bak
;;
cpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout.
"$@" || exit $?
# Remove the call to Libtool.
if test "$libtool" = yes; then
while test $1 != '--mode=compile'; do
shift
done
shift
fi
# Remove `-o $object'.
IFS=" "
for arg
do
case $arg in
-o)
shift
;;
$object)
shift
;;
*)
set fnord "$@" "$arg"
shift # fnord
shift # $arg
;;
esac
done
"$@" -E |
sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
-e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' |
sed '$ s: \\$::' > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
cat < "$tmpdepfile" >> "$depfile"
sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
rm -f "$tmpdepfile"
;;
msvisualcpp)
# Important note: in order to support this mode, a compiler *must*
# always write the preprocessed file to stdout, regardless of -o,
# because we must use -o when running libtool.
"$@" || exit $?
IFS=" "
for arg
do
case "$arg" in
"-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
set fnord "$@"
shift
shift
;;
*)
set fnord "$@" "$arg"
shift
shift
;;
esac
done
"$@" -E |
sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::echo "`cygpath -u \\"\1\\"`":p' | sort | uniq > "$tmpdepfile"
rm -f "$depfile"
echo "$object : \\" > "$depfile"
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s:: \1 \\:p' >> "$depfile"
echo " " >> "$depfile"
. "$tmpdepfile" | sed 's% %\\ %g' | sed -n '/^\(.*\)$/ s::\1\::p' >> "$depfile"
rm -f "$tmpdepfile"
;;
none)
exec "$@"
;;
*)
echo "Unknown depmode $depmode" 1>&2
exit 1
;;
esac
exit 0
# Local Variables:
# mode: shell-script
# sh-indentation: 2
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

507
config/install-sh Executable file
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@ -0,0 +1,507 @@
#!/bin/sh
# install - install a program, script, or datafile
scriptversion=2006-10-14.15
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# `make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.
nl='
'
IFS=" "" $nl"
# set DOITPROG to echo to test this script
# Don't use :- since 4.3BSD and earlier shells don't like it.
doit="${DOITPROG-}"
if test -z "$doit"; then
doit_exec=exec
else
doit_exec=$doit
fi
# Put in absolute file names if you don't have them in your path;
# or use environment vars.
mvprog="${MVPROG-mv}"
cpprog="${CPPROG-cp}"
chmodprog="${CHMODPROG-chmod}"
chownprog="${CHOWNPROG-chown}"
chgrpprog="${CHGRPPROG-chgrp}"
stripprog="${STRIPPROG-strip}"
rmprog="${RMPROG-rm}"
mkdirprog="${MKDIRPROG-mkdir}"
posix_glob=
posix_mkdir=
# Desired mode of installed file.
mode=0755
chmodcmd=$chmodprog
chowncmd=
chgrpcmd=
stripcmd=
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=
dst=
dir_arg=
dstarg=
no_target_directory=
usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
or: $0 [OPTION]... SRCFILES... DIRECTORY
or: $0 [OPTION]... -t DIRECTORY SRCFILES...
or: $0 [OPTION]... -d DIRECTORIES...
In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.
Options:
-c (ignored)
-d create directories instead of installing files.
-g GROUP $chgrpprog installed files to GROUP.
-m MODE $chmodprog installed files to MODE.
-o USER $chownprog installed files to USER.
-s $stripprog installed files.
-t DIRECTORY install into DIRECTORY.
-T report an error if DSTFILE is a directory.
--help display this help and exit.
--version display version info and exit.
Environment variables override the default commands:
CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
"
while test $# -ne 0; do
case $1 in
-c) shift
continue;;
-d) dir_arg=true
shift
continue;;
-g) chgrpcmd="$chgrpprog $2"
shift
shift
continue;;
--help) echo "$usage"; exit $?;;
-m) mode=$2
shift
shift
case $mode in
*' '* | *' '* | *'
'* | *'*'* | *'?'* | *'['*)
echo "$0: invalid mode: $mode" >&2
exit 1;;
esac
continue;;
-o) chowncmd="$chownprog $2"
shift
shift
continue;;
-s) stripcmd=$stripprog
shift
continue;;
-t) dstarg=$2
shift
shift
continue;;
-T) no_target_directory=true
shift
continue;;
--version) echo "$0 $scriptversion"; exit $?;;
--) shift
break;;
-*) echo "$0: invalid option: $1" >&2
exit 1;;
*) break;;
esac
done
if test $# -ne 0 && test -z "$dir_arg$dstarg"; then
# When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
# Otherwise, the last argument is the destination. Remove it from $@.
for arg
do
if test -n "$dstarg"; then
# $@ is not empty: it contains at least $arg.
set fnord "$@" "$dstarg"
shift # fnord
fi
shift # arg
dstarg=$arg
done
fi
if test $# -eq 0; then
if test -z "$dir_arg"; then
echo "$0: no input file specified." >&2
exit 1
fi
# It's OK to call `install-sh -d' without argument.
# This can happen when creating conditional directories.
exit 0
fi
if test -z "$dir_arg"; then
trap '(exit $?); exit' 1 2 13 15
# Set umask so as not to create temps with too-generous modes.
# However, 'strip' requires both read and write access to temps.
case $mode in
# Optimize common cases.
*644) cp_umask=133;;
*755) cp_umask=22;;
*[0-7])
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw='% 200'
fi
cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
*)
if test -z "$stripcmd"; then
u_plus_rw=
else
u_plus_rw=,u+rw
fi
cp_umask=$mode$u_plus_rw;;
esac
fi
for src
do
# Protect names starting with `-'.
case $src in
-*) src=./$src ;;
esac
if test -n "$dir_arg"; then
dst=$src
dstdir=$dst
test -d "$dstdir"
dstdir_status=$?
else
# Waiting for this to be detected by the "$cpprog $src $dsttmp" command
# might cause directories to be created, which would be especially bad
# if $src (and thus $dsttmp) contains '*'.
if test ! -f "$src" && test ! -d "$src"; then
echo "$0: $src does not exist." >&2
exit 1
fi
if test -z "$dstarg"; then
echo "$0: no destination specified." >&2
exit 1
fi
dst=$dstarg
# Protect names starting with `-'.
case $dst in
-*) dst=./$dst ;;
esac
# If destination is a directory, append the input filename; won't work
# if double slashes aren't ignored.
if test -d "$dst"; then
if test -n "$no_target_directory"; then
echo "$0: $dstarg: Is a directory" >&2
exit 1
fi
dstdir=$dst
dst=$dstdir/`basename "$src"`
dstdir_status=0
else
# Prefer dirname, but fall back on a substitute if dirname fails.
dstdir=`
(dirname "$dst") 2>/dev/null ||
expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
X"$dst" : 'X\(//\)[^/]' \| \
X"$dst" : 'X\(//\)$' \| \
X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
echo X"$dst" |
sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
s//\1/
q
}
/^X\(\/\/\)[^/].*/{
s//\1/
q
}
/^X\(\/\/\)$/{
s//\1/
q
}
/^X\(\/\).*/{
s//\1/
q
}
s/.*/./; q'
`
test -d "$dstdir"
dstdir_status=$?
fi
fi
obsolete_mkdir_used=false
if test $dstdir_status != 0; then
case $posix_mkdir in
'')
# Create intermediate dirs using mode 755 as modified by the umask.
# This is like FreeBSD 'install' as of 1997-10-28.
umask=`umask`
case $stripcmd.$umask in
# Optimize common cases.
*[2367][2367]) mkdir_umask=$umask;;
.*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
*[0-7])
mkdir_umask=`expr $umask + 22 \
- $umask % 100 % 40 + $umask % 20 \
- $umask % 10 % 4 + $umask % 2
`;;
*) mkdir_umask=$umask,go-w;;
esac
# With -d, create the new directory with the user-specified mode.
# Otherwise, rely on $mkdir_umask.
if test -n "$dir_arg"; then
mkdir_mode=-m$mode
else
mkdir_mode=
fi
posix_mkdir=false
case $umask in
*[123567][0-7][0-7])
# POSIX mkdir -p sets u+wx bits regardless of umask, which
# is incompatible with FreeBSD 'install' when (umask & 300) != 0.
;;
*)
tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
if (umask $mkdir_umask &&
exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
then
if test -z "$dir_arg" || {
# Check for POSIX incompatibilities with -m.
# HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
# other-writeable bit of parent directory when it shouldn't.
# FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
ls_ld_tmpdir=`ls -ld "$tmpdir"`
case $ls_ld_tmpdir in
d????-?r-*) different_mode=700;;
d????-?--*) different_mode=755;;
*) false;;
esac &&
$mkdirprog -m$different_mode -p -- "$tmpdir" && {
ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
}
}
then posix_mkdir=:
fi
rmdir "$tmpdir/d" "$tmpdir"
else
# Remove any dirs left behind by ancient mkdir implementations.
rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
fi
trap '' 0;;
esac;;
esac
if
$posix_mkdir && (
umask $mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
)
then :
else
# The umask is ridiculous, or mkdir does not conform to POSIX,
# or it failed possibly due to a race condition. Create the
# directory the slow way, step by step, checking for races as we go.
case $dstdir in
/*) prefix=/ ;;
-*) prefix=./ ;;
*) prefix= ;;
esac
case $posix_glob in
'')
if (set -f) 2>/dev/null; then
posix_glob=true
else
posix_glob=false
fi ;;
esac
oIFS=$IFS
IFS=/
$posix_glob && set -f
set fnord $dstdir
shift
$posix_glob && set +f
IFS=$oIFS
prefixes=
for d
do
test -z "$d" && continue
prefix=$prefix$d
if test -d "$prefix"; then
prefixes=
else
if $posix_mkdir; then
(umask=$mkdir_umask &&
$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
# Don't fail if two instances are running concurrently.
test -d "$prefix" || exit 1
else
case $prefix in
*\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
*) qprefix=$prefix;;
esac
prefixes="$prefixes '$qprefix'"
fi
fi
prefix=$prefix/
done
if test -n "$prefixes"; then
# Don't fail if two instances are running concurrently.
(umask $mkdir_umask &&
eval "\$doit_exec \$mkdirprog $prefixes") ||
test -d "$dstdir" || exit 1
obsolete_mkdir_used=true
fi
fi
fi
if test -n "$dir_arg"; then
{ test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
{ test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
{ test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
else
# Make a couple of temp file names in the proper directory.
dsttmp=$dstdir/_inst.$$_
rmtmp=$dstdir/_rm.$$_
# Trap to clean up those temp files at exit.
trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
# Copy the file name to the temp name.
(umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
# and set any options; do chmod last to preserve setuid bits.
#
# If any of these fail, we abort the whole thing. If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $cpprog $src $dsttmp" command.
#
{ test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
&& { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
&& { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
&& { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
# Now rename the file to the real destination.
{ $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
|| {
# The rename failed, perhaps because mv can't rename something else
# to itself, or perhaps because mv is so ancient that it does not
# support -f.
# Now remove or move aside any old file at destination location.
# We try this two ways since rm can't unlink itself on some
# systems and the destination file might be busy for other
# reasons. In this case, the final cleanup might fail but the new
# file should still install successfully.
{
if test -f "$dst"; then
$doit $rmcmd -f "$dst" 2>/dev/null \
|| { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
&& { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
|| {
echo "$0: cannot unlink or rename $dst" >&2
(exit 1); exit 1
}
else
:
fi
} &&
# Now rename the file to the real destination.
$doit $mvcmd "$dsttmp" "$dst"
}
} || exit 1
trap '' 0
fi
done
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

6909
config/ltmain.sh Normal file
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367
config/missing Executable file
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@ -0,0 +1,367 @@
#! /bin/sh
# Common stub for a few missing GNU programs while installing.
scriptversion=2006-05-10.23
# Copyright (C) 1996, 1997, 1999, 2000, 2002, 2003, 2004, 2005, 2006
# Free Software Foundation, Inc.
# Originally by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
if test $# -eq 0; then
echo 1>&2 "Try \`$0 --help' for more information"
exit 1
fi
run=:
sed_output='s/.* --output[ =]\([^ ]*\).*/\1/p'
sed_minuso='s/.* -o \([^ ]*\).*/\1/p'
# In the cases where this matters, `missing' is being run in the
# srcdir already.
if test -f configure.ac; then
configure_ac=configure.ac
else
configure_ac=configure.in
fi
msg="missing on your system"
case $1 in
--run)
# Try to run requested program, and just exit if it succeeds.
run=
shift
"$@" && exit 0
# Exit code 63 means version mismatch. This often happens
# when the user try to use an ancient version of a tool on
# a file that requires a minimum version. In this case we
# we should proceed has if the program had been absent, or
# if --run hadn't been passed.
if test $? = 63; then
run=:
msg="probably too old"
fi
;;
-h|--h|--he|--hel|--help)
echo "\
$0 [OPTION]... PROGRAM [ARGUMENT]...
Handle \`PROGRAM [ARGUMENT]...' for when PROGRAM is missing, or return an
error status if there is no known handling for PROGRAM.
Options:
-h, --help display this help and exit
-v, --version output version information and exit
--run try to run the given command, and emulate it if it fails
Supported PROGRAM values:
aclocal touch file \`aclocal.m4'
autoconf touch file \`configure'
autoheader touch file \`config.h.in'
autom4te touch the output file, or create a stub one
automake touch all \`Makefile.in' files
bison create \`y.tab.[ch]', if possible, from existing .[ch]
flex create \`lex.yy.c', if possible, from existing .c
help2man touch the output file
lex create \`lex.yy.c', if possible, from existing .c
makeinfo touch the output file
tar try tar, gnutar, gtar, then tar without non-portable flags
yacc create \`y.tab.[ch]', if possible, from existing .[ch]
Send bug reports to <bug-automake@gnu.org>."
exit $?
;;
-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
echo "missing $scriptversion (GNU Automake)"
exit $?
;;
-*)
echo 1>&2 "$0: Unknown \`$1' option"
echo 1>&2 "Try \`$0 --help' for more information"
exit 1
;;
esac
# Now exit if we have it, but it failed. Also exit now if we
# don't have it and --version was passed (most likely to detect
# the program).
case $1 in
lex|yacc)
# Not GNU programs, they don't have --version.
;;
tar)
if test -n "$run"; then
echo 1>&2 "ERROR: \`tar' requires --run"
exit 1
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
exit 1
fi
;;
*)
if test -z "$run" && ($1 --version) > /dev/null 2>&1; then
# We have it, but it failed.
exit 1
elif test "x$2" = "x--version" || test "x$2" = "x--help"; then
# Could not run --version or --help. This is probably someone
# running `$TOOL --version' or `$TOOL --help' to check whether
# $TOOL exists and not knowing $TOOL uses missing.
exit 1
fi
;;
esac
# If it does not exist, or fails to run (possibly an outdated version),
# try to emulate it.
case $1 in
aclocal*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`acinclude.m4' or \`${configure_ac}'. You might want
to install the \`Automake' and \`Perl' packages. Grab them from
any GNU archive site."
touch aclocal.m4
;;
autoconf)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`${configure_ac}'. You might want to install the
\`Autoconf' and \`GNU m4' packages. Grab them from any GNU
archive site."
touch configure
;;
autoheader)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`acconfig.h' or \`${configure_ac}'. You might want
to install the \`Autoconf' and \`GNU m4' packages. Grab them
from any GNU archive site."
files=`sed -n 's/^[ ]*A[CM]_CONFIG_HEADER(\([^)]*\)).*/\1/p' ${configure_ac}`
test -z "$files" && files="config.h"
touch_files=
for f in $files; do
case $f in
*:*) touch_files="$touch_files "`echo "$f" |
sed -e 's/^[^:]*://' -e 's/:.*//'`;;
*) touch_files="$touch_files $f.in";;
esac
done
touch $touch_files
;;
automake*)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified \`Makefile.am', \`acinclude.m4' or \`${configure_ac}'.
You might want to install the \`Automake' and \`Perl' packages.
Grab them from any GNU archive site."
find . -type f -name Makefile.am -print |
sed 's/\.am$/.in/' |
while read f; do touch "$f"; done
;;
autom4te)
echo 1>&2 "\
WARNING: \`$1' is needed, but is $msg.
You might have modified some files without having the
proper tools for further handling them.
You can get \`$1' as part of \`Autoconf' from any GNU
archive site."
file=`echo "$*" | sed -n "$sed_output"`
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
if test -f "$file"; then
touch $file
else
test -z "$file" || exec >$file
echo "#! /bin/sh"
echo "# Created by GNU Automake missing as a replacement of"
echo "# $ $@"
echo "exit 0"
chmod +x $file
exit 1
fi
;;
bison|yacc)
echo 1>&2 "\
WARNING: \`$1' $msg. You should only need it if
you modified a \`.y' file. You may need the \`Bison' package
in order for those modifications to take effect. You can get
\`Bison' from any GNU archive site."
rm -f y.tab.c y.tab.h
if test $# -ne 1; then
eval LASTARG="\${$#}"
case $LASTARG in
*.y)
SRCFILE=`echo "$LASTARG" | sed 's/y$/c/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" y.tab.c
fi
SRCFILE=`echo "$LASTARG" | sed 's/y$/h/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" y.tab.h
fi
;;
esac
fi
if test ! -f y.tab.h; then
echo >y.tab.h
fi
if test ! -f y.tab.c; then
echo 'main() { return 0; }' >y.tab.c
fi
;;
lex|flex)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified a \`.l' file. You may need the \`Flex' package
in order for those modifications to take effect. You can get
\`Flex' from any GNU archive site."
rm -f lex.yy.c
if test $# -ne 1; then
eval LASTARG="\${$#}"
case $LASTARG in
*.l)
SRCFILE=`echo "$LASTARG" | sed 's/l$/c/'`
if test -f "$SRCFILE"; then
cp "$SRCFILE" lex.yy.c
fi
;;
esac
fi
if test ! -f lex.yy.c; then
echo 'main() { return 0; }' >lex.yy.c
fi
;;
help2man)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified a dependency of a manual page. You may need the
\`Help2man' package in order for those modifications to take
effect. You can get \`Help2man' from any GNU archive site."
file=`echo "$*" | sed -n "$sed_output"`
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
if test -f "$file"; then
touch $file
else
test -z "$file" || exec >$file
echo ".ab help2man is required to generate this page"
exit 1
fi
;;
makeinfo)
echo 1>&2 "\
WARNING: \`$1' is $msg. You should only need it if
you modified a \`.texi' or \`.texinfo' file, or any other file
indirectly affecting the aspect of the manual. The spurious
call might also be the consequence of using a buggy \`make' (AIX,
DU, IRIX). You might want to install the \`Texinfo' package or
the \`GNU make' package. Grab either from any GNU archive site."
# The file to touch is that specified with -o ...
file=`echo "$*" | sed -n "$sed_output"`
test -z "$file" && file=`echo "$*" | sed -n "$sed_minuso"`
if test -z "$file"; then
# ... or it is the one specified with @setfilename ...
infile=`echo "$*" | sed 's/.* \([^ ]*\) *$/\1/'`
file=`sed -n '
/^@setfilename/{
s/.* \([^ ]*\) *$/\1/
p
q
}' $infile`
# ... or it is derived from the source name (dir/f.texi becomes f.info)
test -z "$file" && file=`echo "$infile" | sed 's,.*/,,;s,.[^.]*$,,'`.info
fi
# If the file does not exist, the user really needs makeinfo;
# let's fail without touching anything.
test -f $file || exit 1
touch $file
;;
tar)
shift
# We have already tried tar in the generic part.
# Look for gnutar/gtar before invocation to avoid ugly error
# messages.
if (gnutar --version > /dev/null 2>&1); then
gnutar "$@" && exit 0
fi
if (gtar --version > /dev/null 2>&1); then
gtar "$@" && exit 0
fi
firstarg="$1"
if shift; then
case $firstarg in
*o*)
firstarg=`echo "$firstarg" | sed s/o//`
tar "$firstarg" "$@" && exit 0
;;
esac
case $firstarg in
*h*)
firstarg=`echo "$firstarg" | sed s/h//`
tar "$firstarg" "$@" && exit 0
;;
esac
fi
echo 1>&2 "\
WARNING: I can't seem to be able to run \`tar' with the given arguments.
You may want to install GNU tar or Free paxutils, or check the
command line arguments."
exit 1
;;
*)
echo 1>&2 "\
WARNING: \`$1' is needed, and is $msg.
You might have modified some files without having the
proper tools for further handling them. Check the \`README' file,
it often tells you about the needed prerequisites for installing
this package. You may also peek at any GNU archive site, in case
some other package would contain this missing \`$1' program."
exit 1
;;
esac
exit 0
# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End:

38
configure.in Normal file
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@ -0,0 +1,38 @@
# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_INIT([lxc], [0.1.0])
AC_CONFIG_SRCDIR([configure.in])
AC_CONFIG_AUX_DIR([config])
AM_CONFIG_HEADER([src/config.h])
AM_INIT_AUTOMAKE([-Wno-portability])
AC_CANONICAL_HOST
AC_PROG_RANLIB
AM_PROG_CC_C_O
AC_GNU_SOURCE
AC_CHECK_HEADERS([linux/netlink.h linux/genetlink.h],, AC_MSG_ERROR([netlink headers not found]), [[]])
AC_PROG_GCC_TRADITIONAL
if test "x$GCC" = "xyes"; then
CFLAGS="$CFLAGS -Wall -Werror"
fi
AC_CONFIG_FILES([
Makefile
lxc.spec
config/Makefile
src/Makefile
src/liblxc/Makefile
src/lxc/Makefile
src/lxc/lxc-ps
etc/Makefile
etc/lxc-macvlan.conf
etc/lxc-no-netns.conf
etc/lxc-phys.conf
etc/lxc-veth.conf
etc/lxc-complex-config
test/Makefile
])
AC_CONFIG_COMMANDS([default],[[]],[[]])
AC_OUTPUT

2
doc/fstab Normal file
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@ -0,0 +1,2 @@
proc /proc proc defaults 0 0
sysfs /sys sysfs noauto 0 0

36
doc/lxc.conf Normal file
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@ -0,0 +1,36 @@
# the fstab mount file
lxc.mount = ./fstab
# the hostname to be set into the container
lxc.utsname = virtnode
# The network has several of kind of configuration:
#
# * veth : the network will use the veth virtual device, the specified
# link must be a bridge
# * macvlan : the network will use the macvlan device, the specified link
# should be an existing interface, usually it is eth0
# * phys : the network will use a physical network device, the specified
# link should be an existing interface
lxc.network.type = macvlan
# specify the flags to be used for the network, actually only <up> is allowed
# which mean the network should be set up when created. If the network is set
# up, the loopback is automatically set up too.
lxc.network.flags = up
# specify the physical network device which will communicate with the
# outside world
lxc.network.link = eth0
# NIC ethernet mac address
lxc.network.hwaddr = 4a:49:43:49:79:bd
# specify the ipv4 address of the container. Several lines are allowed and
# will mean several addresses will be assigned to the interface
lxc.network.ipv4 = 1.2.3.5/24
# specify the ipv6 address of the container. Several lines are allowed and
# will mean several addresses will be assigned to the interface
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3596

7
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@ -0,0 +1,7 @@
Makefile
Makefile.in
lxc-macvlan.conf
lxc-no-netns.conf
lxc-phys.conf
lxc-veth.conf

13
etc/Makefile.am Normal file
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@ -0,0 +1,13 @@
pkgsysconfdir = $(sysconfdir)/$(PACKAGE)
pkgsysconf_DATA = \
lxc-macvlan.conf \
lxc-no-netns.conf \
lxc-phys.conf \
lxc-veth.conf \
lxc-complex-config
noinst_DATA = \
lxc-macvlan.conf.in \
lxc-no-netns.conf.in \
lxc-phys.conf.in \
lxc-veth.conf.in \
lxc-complex-config.in

23
etc/lxc-complex-config.in Normal file
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@ -0,0 +1,23 @@
# Container with network a complex network mixing macvlan, veth and
# physical network devices
lxc.utsname = complex
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = br0
lxc.network.hwaddr = 4a:49:43:49:79:bf
lxc.network.ipv4 = 1.2.3.5/24
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3597
lxc.network.type = macvlan
lxc.network.flags = up
lxc.network.link = eth0
lxc.network.hwaddr = 4a:49:43:49:79:bd
lxc.network.ipv4 = 1.2.3.4/24
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3596
lxc.network.type = phys
lxc.network.flags = up
lxc.network.link = dummy0
lxc.network.hwaddr = 4a:49:43:49:79:ff
lxc.network.ipv4 = 1.2.3.6/24
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3297

8
etc/lxc-macvlan.conf.in Normal file
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@ -0,0 +1,8 @@
# Container with network virtualized using the macvlan device driver
lxc.utsname = alpha
lxc.network.type = macvlan
lxc.network.flags = up
lxc.network.link = eth0
lxc.network.hwaddr = 4a:49:43:49:79:bd
lxc.network.ipv4 = 1.2.3.4/24
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3596

2
etc/lxc-no-netns.conf.in Normal file
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@ -0,0 +1,2 @@
# Container with non-virtualized network
lxc.utsname = delta

9
etc/lxc-phys.conf.in Normal file
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@ -0,0 +1,9 @@
# Container with network virtualized using a physical network device with name
# 'eth0'
lxc.utsname = gamma
lxc.network.type = phys
lxc.network.flags = up
lxc.network.link = eth0
lxc.network.hwaddr = 4a:49:43:49:79:ff
lxc.network.ipv4 = 1.2.3.6/24
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3297

9
etc/lxc-veth.conf.in Normal file
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@ -0,0 +1,9 @@
# Container with network virtualized using a pre-configured bridge named br0 and
# veth pair virtual network devices
lxc.utsname = beta
lxc.network.type = veth
lxc.network.flags = up
lxc.network.link = br0
lxc.network.hwaddr = 4a:49:43:49:79:bf
lxc.network.ipv4 = 1.2.3.5/24
lxc.network.ipv6 = 2003:db8:1:0:214:1234:fe0b:3597

99
lxc.spec.in Normal file
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@ -0,0 +1,99 @@
#
# lxc: linux Container library
#
# (C) Copyright IBM Corp. 2007, 2008
#
# Authors:
# Daniel Lezcano <dlezcano at fr.ibm.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
%define _unpackaged_files_terminate_build 0
%define RELEASE 1
%define rel %{?CUSTOM_RELEASE} %{!?CUSTOM_RELEASE: %RELEASE}
#
# Arguments that can be passed to the rpm builder:
#
# --define 'confargs <extra args to configure args>' (def. '')
#
%{!?confargs: %{expand:%%define confargs ''}}
# What kernel are we building for?
%{!?kernel: %{expand:%%define kernel %(uname -r)}}
%define _prefix /usr
Name: @PACKAGE@
Version: @VERSION@
Release: %{rel}
Packager: <dlezcano@fr.ibm.com>
URL: http://lxc.sourceforge.net
Summary: %name
Group: Applications/System
License: LGPL
Source: %name/%name-%version.tar.gz
BuildRoot: %_tmppath/%name-%version-root
%description
%name is a set of command line to manage containers
%package devel
Release: %{rel}
Summary: development library for %{name}
Group: Application/System
%description devel
The %{name}-devel package contains header files and library needed for development
of containers
%prep
%setup -q
%build
%configure $args
ncpus=`egrep -c "^cpu[0-9]+" /proc/stat || :`
make -j$ncpus
%install
rm -rf %{buildroot}
%makeinstall
%clean
rm -rf %{buildroot}
%post
%files
%defattr(-,root,root)
%{_sysconfdir}/%{name}/*
%{_bindir}/*
%files devel
%defattr(-,root,root)
%{_includedir}/%{name}/*
%{_libdir}/*.a
%changelog
* Sun Aug 3 2008 Daniel Lezcano <dlezcano@fr.ibm.com>
- Initial RPM release.
# Local variables:
# mode: shell-script
# sh-shell: rpm
# end:

5
src/.cvsignore Normal file
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@ -0,0 +1,5 @@
Makefile
Makefile.in
config.h
config.h.in
stamp-h1

1
src/Makefile.am Normal file
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@ -0,0 +1 @@
SUBDIRS = liblxc lxc

4
src/liblxc/.cvsignore Normal file
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@ -0,0 +1,4 @@
Makefile
Makefile.in
liblxc.la
.deps

26
src/liblxc/Makefile.am Normal file
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@ -0,0 +1,26 @@
lib_LIBRARIES = liblxc.a
pkginclude_HEADERS = lxc.h
liblxc_a_SOURCES = \
create.c \
destroy.c \
start.c \
stop.c \
execute.c \
monitor.c \
kill.c \
state.c \
freezer.c \
cgroup.c cgroup.h \
lxc.h \
utils.h \
lock.c lock.h \
namespace.h \
network.c network.h \
conf.c conf.h \
list.h \
state.c state.h \
log.c log.h \
\
nl.c nl.h \
rtnl.c rtnl.h \
genl.c genl.h

188
src/liblxc/cgroup.c Normal file
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@ -0,0 +1,188 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <stdlib.h>
#include <errno.h>
#include <mntent.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/inotify.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <log.h>
#define MAXPRIOLEN 24
#define MTAB "/etc/mtab"
static int get_cgroup_mount(const char *mtab, char *mnt)
{
struct mntent *mntent;
FILE *file = NULL;
int err = -1;
file = setmntent(mtab, "r");
if (!file) {
lxc_log_syserror("failed to open %s", mtab);
goto out;
}
while ((mntent = getmntent(file))) {
if (strcmp(mntent->mnt_fsname, "cgroup"))
continue;
strcpy(mnt, mntent->mnt_dir);
err = 0;
break;
};
fclose(file);
out:
return err;
}
int lxc_link_nsgroup(const char *name, pid_t pid)
{
char *lxc, *nsgroup, cgroup[MAXPATHLEN];
int ret;
if (get_cgroup_mount(MTAB, cgroup)) {
lxc_log_info("cgroup is not mounted");
return -1;
}
asprintf(&lxc, LXCPATH "/%s/nsgroup", name);
asprintf(&nsgroup, "%s/%d", cgroup, pid);
ret = symlink(nsgroup, lxc);
if (ret)
lxc_log_syserror("failed to create symlink %s->%s",
nsgroup, lxc);
free(lxc);
free(nsgroup);
return ret;
}
int lxc_unlink_nsgroup(const char *name)
{
char *nsgroup;
int ret;
asprintf(&nsgroup, LXCPATH "/%s/nsgroup", name);
ret = unlink(nsgroup);
free(nsgroup);
return ret;
}
int lxc_set_priority(const char *name, int priority)
{
int fd;
char *path = NULL, *prio = NULL;
asprintf(&path, LXCPATH "/%s/nsgroup/cpu.shares", name);
fd = open(path, O_WRONLY);
if (fd < 0) {
lxc_log_syserror("failed to open '%s'", path);
goto out;
}
asprintf(&prio, "%d", priority);
if (write(fd, prio, strlen(prio) + 1) < 0) {
lxc_log_syserror("failed to write to '%s'", path);
close(fd);
goto out;
}
close(fd);
out:
free(path);
free(prio);
return 0;
}
int lxc_get_priority(const char *name, int *priority)
{
int fd, ret = -1;
char *path, prio[MAXPRIOLEN];
asprintf(&path, LXCPATH "/%s/nsgroup/cpu.shares", name);
fd = open(path, O_RDONLY);
if (fd < 0) {
lxc_log_syserror("failed to open '%s'", path);
goto out;
}
if (read(fd, prio, MAXPRIOLEN) < 0) {
lxc_log_syserror("failed to read from '%s'", path);
close(fd);
goto out;
}
close(fd);
*priority = atoi(prio);
ret = 0;
out:
free(path);
return 0;
}
int lxc_set_memory(const char *name, size_t memmax)
{
return 0;
}
int lxc_get_memory(const char *name, size_t *memmax)
{
return 0;
}
int lxc_get_memstat(const char *name, struct lxc_mem_stat *memstat)
{
return 0;
}
int lxc_set_cpuset(const char *name, long *cpumask, int len, int shared)
{
return 0;
}
int lxc_get_cpuset(const char *name, long *cpumask, int len, int *shared)
{
return 0;
}
int lxc_get_cpu_usage(const char *name, long long *usage)
{
return 0;
}

30
src/liblxc/cgroup.h Normal file
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@ -0,0 +1,30 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _cgroup_h
#define _cgroup_h
int lxc_get_cgroup_mount(const char *mtab, char *mnt);
int lxc_link_nsgroup(const char *name, pid_t pid);
int lxc_unlink_nsgroup(const char *name);
#endif

1250
src/liblxc/conf.c Normal file
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144
src/liblxc/conf.h Normal file
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@ -0,0 +1,144 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _conf_h
#define _conf_h
enum {
VETH,
MACVLAN,
PHYS,
MAXCONFTYPE,
};
/*
* Defines the structure to configure an ipv4 address
* @address : ipv4 address
* @broadcast : ipv4 broadcast address
* @mask : network mask
*/
struct inetdev {
struct in_addr addr;
struct in_addr bcast;
int prefix;
};
struct route {
struct in_addr addr;
};
/*
* Defines the structure to configure an ipv6 address
* @flags : set the address up
* @address : ipv6 address
* @broadcast : ipv6 broadcast address
* @mask : network mask
*/
struct inet6dev {
struct in6_addr addr;
struct in6_addr bcast;
struct in6_addr acast;
int prefix;
};
struct route6 {
struct in6_addr addr;
};
/*
* Defines a structure to configure a network device
* @ifname : network device name
* @flags : flag of the network device (IFF_UP, ... )
* @ipv4 : a list of ipv4 addresses to be set on the network device
* @ipv6 : a list of ipv6 addresses to be set on the network device
*/
struct netdev {
int flags;
char *ifname;
char *newname;
char *hwaddr;
struct list ipv4;
struct list ipv6;
struct list route4;
struct list route6;
};
/*
* Defines the kind of the network to use
* @type : the type of the network virtualization
* @phys : phys configuration type
* @veth : veth configuration type
* @macvlan : macvlan configuration type
*/
struct network {
int type;
struct list netdev;
};
/*
* Defines a structure to configure the control data and path
*/
struct cgroup {
;
};
/*
* Defines the global container configuration
* @chroot : the root directory to run the container
* @mount : the list of mount points
* @network : the network configuration
* @utsname : the container utsname
*/
struct lxc_conf {
char *chroot;
char *fstab;
struct utsname *utsname;
struct cgroup *cgroup;
struct list networks;
};
/*
* Configure the external resources for the container
*/
extern int lxc_configure(const char *name, struct lxc_conf *conf);
/*
* Remove the resources created by the configuration
*/
extern int lxc_unconfigure(const char *name);
extern int conf_create_network(const char *name, pid_t pid);
extern int conf_destroy_network(const char *name);
/*
* Configure the container from inside
*/
extern int lxc_setup(const char *name);
extern int conf_has(const char *name, const char *info);
#define conf_has_fstab(__name) conf_has(__name, "fstab")
#define conf_has_utsname(__name) conf_has(__name, "utsname")
#define conf_has_network(__name) conf_has(__name, "network")
#endif

153
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <string.h>
#include <dirent.h>
#include <unistd.h>
#include <errno.h>
#include <sys/param.h>
#include <sys/inotify.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <list.h>
#include <conf.h>
#include <lock.h>
#include <log.h>
static int dir_filter(const struct dirent *dirent)
{
if (!strcmp(dirent->d_name, ".") ||
!strcmp(dirent->d_name, ".."))
return 0;
return 1;
}
static int is_empty_directory(const char *dirname)
{
struct dirent **namelist;
int n;
n = scandir(dirname, &namelist, dir_filter, alphasort);
if (n < 0)
lxc_log_syserror("failed to scan %s directory", dirname);
return n == 0;
}
static int create_lxc_directory(const char *dirname)
{
char path[MAXPATHLEN];
if (mkdir(LXCPATH, 0755) && errno != EEXIST) {
lxc_log_syserror("failed to created %s directory", LXCPATH);
return -1;
}
sprintf(path, LXCPATH "/%s", dirname);
if (mkdir(path, 0755)) {
lxc_log_syserror("failed to created %s directory", path);
return -1;
}
return 0;
}
static int remove_lxc_directory(const char *dirname)
{
char path[MAXPATHLEN];
sprintf(path, LXCPATH "/%s", dirname);
if (rmdir(path)) {
lxc_log_syserror("failed to remove %s directory", path);
return -1;
}
if (is_empty_directory(LXCPATH)) {
if (rmdir(LXCPATH)) {
lxc_log_syserror("failed to remove %s directory", LXCPATH);
return -1;
}
}
return 0;
}
int lxc_create(const char *name, struct lxc_conf *conf)
{
int lock, err = -1;
if (create_lxc_directory(name)) {
lxc_log_error("failed to create %s directory", name);
return -1;
}
lock = lxc_get_lock(name);
if (!lock) {
lxc_log_error("'%s' is busy", name);
goto err;
}
if (lock < 0) {
lxc_log_error("failed to acquire lock on '%s':%s",
name, strerror(-lock));
goto err;
}
if (mkstate(name)) {
lxc_log_error("failed to create the state file for %s", name);
goto err;
}
if (lxc_setstate(name, STOPPED)) {
lxc_log_error("failed to set state for %s", name);
goto err_state;
}
if (lxc_configure(name, conf)) {
lxc_log_error("failed to set configuration for %s", name);
goto err_state;
}
err = 0;
out:
lxc_put_lock(lock);
return err;
err_state:
lxc_unconfigure(name);
if (rmstate(name))
lxc_log_error("failed to remove state file for %s", name);
err:
if (remove_lxc_directory(name))
lxc_log_error("failed to cleanup lxc directory for %s", name);
goto out;
}

123
src/liblxc/destroy.c Normal file
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@ -0,0 +1,123 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <dirent.h>
#include <unistd.h>
#include <errno.h>
#include <sys/param.h>
#include <sys/inotify.h>
#include <sys/file.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <list.h>
#include <conf.h>
#include <log.h>
#include <lock.h>
static int dir_filter(const struct dirent *dirent)
{
if (!strcmp(dirent->d_name, ".") ||
!strcmp(dirent->d_name, ".."))
return 0;
return 1;
}
static int is_empty_directory(const char *dirname)
{
struct dirent **namelist;
int n;
n = scandir(dirname, &namelist, dir_filter, alphasort);
if (n < 0)
lxc_log_syserror("failed to scan %s directory", dirname);
return n == 0;
}
static int remove_lxc_directory(const char *dirname)
{
char path[MAXPATHLEN];
sprintf(path, LXCPATH "/%s", dirname);
if (rmdir(path)) {
lxc_log_syserror("failed to remove %s directory", path);
return -1;
}
if (is_empty_directory(LXCPATH)) {
if (rmdir(LXCPATH)) {
lxc_log_syserror("failed to remove %s directory", LXCPATH);
return -1;
}
}
return 0;
}
int lxc_destroy(const char *name)
{
int ret = -1, lock;
lock = lxc_get_lock(name);
if (!lock) {
lxc_log_error("'%s' is busy", name);
goto out;
}
if (lock < 0) {
lxc_log_error("failed to acquire the lock for '%s':%s",
name, strerror(-lock));
goto out;
}
if (rmstate(name)) {
lxc_log_error("failed to remove state file for %s", name);
goto out_lock;
}
if (lxc_unconfigure(name)) {
lxc_log_error("failed to cleanup %s", name);
goto out_lock;
}
if (remove_lxc_directory(name)) {
lxc_log_syserror("failed to remove '%s'", name);
goto out_lock;
}
ret = 0;
out_lock:
lxc_put_lock(lock);
out:
return ret;
}

278
src/liblxc/execute.c Normal file
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@ -0,0 +1,278 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/prctl.h>
#include <sys/wait.h>
#include <sys/file.h>
#include <sys/mount.h>
#include <netinet/in.h>
#include <net/if.h>
#include <list.h>
#include <conf.h>
#include <log.h>
#include <lxc.h>
#include <lock.h>
#include <state.h>
#include <cgroup.h>
#include <namespace.h>
#include <utils.h>
LXC_TTY_HANDLER(SIGINT);
LXC_TTY_HANDLER(SIGQUIT);
int lxc_execute(const char *name, int argc, char *argv[],
lxc_callback_t preexec, void *data)
{
char *init = NULL, *val = NULL, *vinit = "[vinit]";
int fd, lock, sv[2], sync = 0, err = -1;
pid_t pid;
int clone_flags;
lock = lxc_get_lock(name);
if (!lock) {
lxc_log_error("'%s' is busy", name);
return -1;
}
if (lock < 0) {
lxc_log_error("failed to acquire lock on '%s':%s",
name, strerror(-lock));
return -1;
}
fcntl(lock, F_SETFD, FD_CLOEXEC);
if (lxc_setstate(name, STARTING)) {
lxc_log_error("failed to set state %s", state2str(STARTING));
goto out;
}
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sv)) {
lxc_log_syserror("failed to create communication socketpair");
goto err;
}
LXC_TTY_ADD_HANDLER(SIGINT);
LXC_TTY_ADD_HANDLER(SIGQUIT);
clone_flags = CLONE_NEWPID|CLONE_NEWIPC|CLONE_NEWNS;
if (conf_has_utsname(name))
clone_flags |= CLONE_NEWUTS;
if (conf_has_network(name))
clone_flags |= CLONE_NEWNET;
pid = fork_ns(clone_flags);
if (pid < 0) {
lxc_log_syserror("failed to fork into a new namespace");
goto err_fork_ns;
}
if (!pid) {
pid = fork();
if (pid < 0) {
lxc_log_syserror("failed to fork");
return 1;
}
if (!pid) {
close(sv[1]);
fcntl(sv[0], F_SETFD, FD_CLOEXEC);
if (write(sv[0], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to write socket");
return 1;
}
if (read(sv[0], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to read socket");
return 1;
}
if (lxc_setup(name)) {
lxc_log_error("failed to setup the container");
goto error;
}
if (mount("proc", "/proc", "proc", 0, NULL)) {
lxc_log_error("failed to mount '/proc'");
goto error;
}
if (mount("sysfs", "/sys", "sysfs", 0, NULL)) {
lxc_log_syserror("failed to mount '/sys'");
/* continue: non fatal error until sysfs not per
namespace */
}
if (preexec)
if (preexec(name, argc, argv, data)) {
lxc_log_error("preexec callback has failed");
return -1;
}
execvp(argv[0], argv);
error:
lxc_log_syserror("failed to exec %s", argv[0]);
if (write(sv[0], &sync, sizeof(sync)) < 0)
lxc_log_syserror("failed to write the socket");
return 1;
}
setsid();
close(0);
close(1);
close(2);
if (prctl(PR_SET_NAME, vinit, 0, 0, 0))
lxc_log_syserror("failed to set process name");
close(sv[0]);
close(sv[1]);
for (;;) {
int status;
if (wait(&status) < 0) {
if (errno == ECHILD)
return 0;
if (errno == EINTR)
continue;
lxc_log_syserror("failed to wait child");
return 1;
}
}
}
close(sv[0]);
if (read(sv[1], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to read the socket");
goto err_pipe_read;
}
if (clone_flags & CLONE_NEWNET && conf_create_network(name, pid)) {
lxc_log_error("failed to create the configured network");
goto err_create_network;
}
if (write(sv[1], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to write the socket");
goto err_pipe_write;
}
err = read(sv[1], &sync, sizeof(sync));
if (err < 0) {
lxc_log_error("failed to read the socket");
goto err_pipe_read2;
}
if (err > 0) {
lxc_log_error("something went wrong with %d", pid);
/* TODO : check status etc ... */
waitpid(pid, NULL, 0);
goto err_child_failed;
}
asprintf(&init, LXCPATH "/%s/init", name);
fd = open(init, O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR);
if (fd < 0) {
lxc_log_syserror("failed to open %s", init);
goto err_open;
}
asprintf(&val, "%d", pid);
if (write(fd, val, strlen(val)) < 0) {
lxc_log_syserror("failed to write init pid");
goto err_write;
}
if (lxc_link_nsgroup(name, pid))
lxc_log_warning("cgroupfs not found: cgroup disabled");
if (lxc_setstate(name, RUNNING)) {
lxc_log_error("failed to set state to %s", state2str(RUNNING));
goto err_state_failed;
}
wait_again:
if (waitpid(pid, NULL, 0) < 0) {
if (errno == EINTR)
goto wait_again;
lxc_log_syserror("failed to wait the pid %d", pid);
goto err_waitpid_failed;
}
if (lxc_setstate(name, STOPPING))
lxc_log_error("failed to set state %s", state2str(STOPPING));
if (clone_flags & CLONE_NEWNET && conf_destroy_network(name))
lxc_log_error("failed to destroy the network");
err = 0;
out:
if (lxc_setstate(name, STOPPED))
lxc_log_error("failed to set state %s", state2str(STOPPED));
lxc_unlink_nsgroup(name);
unlink(init);
free(init);
free(val);
lxc_put_lock(lock);
return err;
err_write:
close(fd);
err_state_failed:
err_child_failed:
err_pipe_read2:
err_pipe_write:
conf_destroy_network(name);
err_create_network:
err_pipe_read:
err_open:
err_waitpid_failed:
if (lxc_setstate(name, ABORTING))
lxc_log_error("failed to set state %s", state2str(STOPPED));
kill(pid, SIGKILL);
err_fork_ns:
LXC_TTY_DEL_HANDLER(SIGQUIT);
LXC_TTY_DEL_HANDLER(SIGINT);
close(sv[0]);
close(sv[1]);
err:
goto out;
}

73
src/liblxc/freezer.c Normal file
View File

@ -0,0 +1,73 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/inotify.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <log.h>
static int freeze_unfreeze(const char *name, int freeze)
{
char *freezer, *f = freeze?"FROZEN":"RUNNING";
int fd, ret = -1;
asprintf(&freezer, LXCPATH "/%s/nsgroup/freezer.state", name);
fd = open(freezer, O_WRONLY);
if (fd < 0) {
lxc_log_syserror("failed to open freezer for '%s'", name);
goto out;
}
ret = write(fd, f, strlen(f) + 1) < 0;
close(fd);
if (ret)
lxc_log_syserror("failed to write to '%s'", freezer);
out:
free(freezer);
return ret;
}
int lxc_freeze(const char *name)
{
return freeze_unfreeze(name, 1);
}
int lxc_unfreeze(const char *name)
{
return freeze_unfreeze(name, 0);
}

148
src/liblxc/genl.c Normal file
View File

@ -0,0 +1,148 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include <stdio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <linux/genetlink.h>
#include <linux/rtnetlink.h>
#include <nl.h>
#include <genl.h>
static int genetlink_resolve_family(const char *family)
{
struct nl_handler handler;
struct nlattr *attr;
struct genlmsg *request, *reply;
struct genlmsghdr *genlmsghdr;
int len, ret;
request = genlmsg_alloc(GENLMSG_GOOD_SIZE);
if (!request)
return -ENOMEM;
reply = genlmsg_alloc(GENLMSG_GOOD_SIZE);
if (!reply) {
genlmsg_free(request);
return -ENOMEM;
}
request->nlmsghdr.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
request->nlmsghdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
request->nlmsghdr.nlmsg_type = GENL_ID_CTRL;
genlmsghdr = NLMSG_DATA(&request->nlmsghdr);
genlmsghdr->cmd = CTRL_CMD_GETFAMILY;
ret = netlink_open(&handler, NETLINK_GENERIC);
if (ret)
return ret;
ret = nla_put_string((struct nlmsg *)&request->nlmsghdr,
CTRL_ATTR_FAMILY_NAME, family);
if (ret)
goto out;
ret = netlink_transaction(&handler, (struct nlmsg *)&request->nlmsghdr,
(struct nlmsg *)&reply->nlmsghdr);
if (ret < 0)
goto out;
genlmsghdr = NLMSG_DATA(&reply->nlmsghdr);
len = reply->nlmsghdr.nlmsg_len;
ret = -ENOMSG;
if (reply->nlmsghdr.nlmsg_type != GENL_ID_CTRL)
goto out;
if (genlmsghdr->cmd != CTRL_CMD_NEWFAMILY)
goto out;
ret = -EMSGSIZE;
len -= NLMSG_LENGTH(GENL_HDRLEN);
if (len < 0)
goto out;
attr = (struct nlattr *)GENLMSG_DATA(reply);
attr = (struct nlattr *)((char *)attr + NLA_ALIGN(attr->nla_len));
ret = -ENOMSG;
if (attr->nla_type != CTRL_ATTR_FAMILY_ID)
goto out;
ret = *(__u16 *) NLA_DATA(attr);
out:
genlmsg_free(request);
genlmsg_free(reply);
netlink_close(&handler);
return ret;
}
extern int genetlink_open(struct genl_handler *handler, const char *family)
{
int ret;
handler->family = genetlink_resolve_family(family);
if (handler->family < 0)
return handler->family;
ret = netlink_open(&handler->nlh, NETLINK_GENERIC);
return ret;
}
extern int genetlink_close(struct genl_handler *handler)
{
return netlink_close(&handler->nlh);
}
extern int genetlink_rcv(struct genl_handler *handler, struct genlmsg *genlmsg)
{
return netlink_rcv(&handler->nlh, (struct nlmsg *)&genlmsg->nlmsghdr);
}
extern int genetlink_send(struct genl_handler *handler, struct genlmsg *genlmsg)
{
return netlink_send(&handler->nlh, (struct nlmsg *)&genlmsg->nlmsghdr);
}
extern int genetlink_transaction(struct genl_handler *handler,
struct genlmsg *request, struct genlmsg *answer)
{
return netlink_transaction(&handler->nlh, (struct nlmsg *)&request->nlmsghdr,
(struct nlmsg *)&answer->nlmsghdr);
}
extern struct genlmsg *genlmsg_alloc(size_t size)
{
size_t len = NLMSG_LENGTH(GENL_HDRLEN) + size;
return (struct genlmsg *)nlmsg_alloc(len);
}
extern void genlmsg_free(struct genlmsg *genlmsg)
{
free(genlmsg);
}

121
src/liblxc/genl.h Normal file
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@ -0,0 +1,121 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __genl_h
#define __genl_h
/*
* Use this as a good size to allocate generic netlink messages
*/
#define GENLMSG_GOOD_SIZE NLMSG_GOOD_SIZE
#define GENLMSG_DATA(glh) ((void *)(NLMSG_DATA(glh) + GENL_HDRLEN))
/*
* struct genl_handler : the structure which store the netlink handler
* and the family number resulting of the auto-generating id family
* for the generic netlink protocol
*
* @nlh: the netlink socket handler
* @family: the generic netlink family assigned number
*/
struct genl_handler
{
struct nl_handler nlh;
int family;
};
/*
* struct genlmsg : the struct containing the generic netlink message
* format
*
* @nlmsghdr: a netlink message header
* @genlmsghdr: a generic netlink message header pointer
*
*/
/* __attribute__ ((aligned(4))); */
struct genlmsg {
struct nlmsghdr nlmsghdr;
struct genlmsghdr genlmsghdr;
};
static inline int genetlink_len(const struct genlmsg *genlmsg)
{
return ((genlmsg->nlmsghdr.nlmsg_len) - GENL_HDRLEN - NLMSG_HDRLEN);
}
/*
* genetlink_open : resolve family number id and open a generic netlink socket
*
* @handler: a struct genl_handler pointer
* @family: the family name of the generic netlink protocol
*
* Returns 0 on success, < 0 otherwise
*/
int genetlink_open(struct genl_handler *handler, const char *family);
/*
* genetlink_close : close a generic netlink socket
*
* @handler: the handler of the socket to be closed
*
* Returns 0 on success, < 0 otherwise
*/
int genetlink_close(struct genl_handler *handler);
/*
* genetlink_rcv : receive a generic netlink socket, it is up
* to the caller to manage the allocation of the generic netlink message
*
* @handler: the handler of the generic netlink socket
* @genlmsg: the pointer to a generic netlink message pre-allocated
*
* Returns 0 on success, < 0 otherwise
*/
int genetlink_rcv(struct genl_handler *handler, struct genlmsg *genlmsg);
/*
* genetlink_send : send a generic netlink socket, it is up
* to the caller to manage the allocation of the generic netlink message
*
* @handler: the handler of the generic netlink socket
* @genlmsg: the pointer to a generic netlink message pre-allocated
*
* Returns 0 on success, < 0 otherwise
*/
int genetlink_send(struct genl_handler *handler, struct genlmsg *genlmsg);
struct genlmsg *genlmsg_alloc(size_t size);
void genlmsg_free(struct genlmsg *genlmsg);
/*
* genetlink_transaction : send and receive a generic netlink message in one shot
*
* @handler: the handler of the generic netlink socket
* @request: a generic netlink message containing the request to be sent
* @answer: a pre-allocated generic netlink message to receive the response
*
* Returns 0 on success, < 0 otherwise
*/
int genetlink_transaction(struct genl_handler *handler,
struct genlmsg *request, struct genlmsg *answer);
#endif

74
src/liblxc/kill.c Normal file
View File

@ -0,0 +1,74 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <list.h>
#include <conf.h>
#include <log.h>
int lxc_kill(const char *name, int signum)
{
char *freezer = NULL, *signal = NULL;
int fd = -1, ret = -1;
if (signum < SIGHUP || signum > SIGRTMAX) {
lxc_log_error("bad signal value %d", signum);
goto out;
}
asprintf(&freezer, LXCPATH "/%s/nsgroup/freezer.kill", name);
asprintf(&signal, "%d", signum);
fd = open(freezer, O_WRONLY);
if (fd < 0) {
lxc_log_syserror("failed to open %s for %s", freezer, name);
goto out;
}
if (write(fd, &signal, strlen(signal)) < 0) {
lxc_log_syserror("failed to write to %s", freezer);
goto out;
}
ret = 0;
out:
close(fd);
free(freezer);
free(signal);
return ret;
}

23
src/liblxc/list.c Normal file
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@ -0,0 +1,23 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <list.h>

57
src/liblxc/list.h Normal file
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@ -0,0 +1,57 @@
#ifndef _list_h
#define _list_h
struct list {
void *elem;
struct list *next;
struct list *prev;
};
#define init_list(l) { .next = l, .prev = l, }
#define list_for_each(__iterator, __list) \
for (__iterator = (__list)->next; \
__iterator != __list; \
__iterator = __iterator->next)
static inline void list_init(struct list *list)
{
list->elem = NULL;
list->next = list->prev = list;
}
static inline void list_add_elem(struct list *list, void *elem)
{
list->elem = elem;
}
static inline void *list_first_elem(struct list *list)
{
return list->next->elem;
}
static inline int list_empty(struct list *list)
{
return list == list->next;
}
static inline void list_add(struct list *list, struct list *new)
{
struct list *next = list->next;
next->prev = new;
new->next = next;
new->prev = list;
list->next = new;
}
static inline void list_del(struct list *list)
{
struct list *next, *prev;
next = list->next;
prev = list->prev;
next->prev = prev;
prev->next = next;
}
#endif

61
src/liblxc/lock.c Normal file
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@ -0,0 +1,61 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/file.h>
#include <lxc.h>
int lxc_get_lock(const char *name)
{
char *lock;
int fd, ret;
asprintf(&lock, LXCPATH "/%s", name);
fd = open(lock, O_RDONLY|O_DIRECTORY, S_IRUSR|S_IWUSR);
if (fd < 0) {
ret = -errno;
goto out;
}
if (flock(fd, LOCK_EX|LOCK_NB)) {
ret = errno == EWOULDBLOCK ? 0 : -errno;
close(fd);
goto out;
}
ret = fd;
out:
free(lock);
return ret;
}
void lxc_put_lock(int lock)
{
flock(lock, LOCK_UN);
close(lock);
}

30
src/liblxc/lock.h Normal file
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@ -0,0 +1,30 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _lock_h
#define _lock_h
extern int lxc_get_lock(const char *name);
extern int lxc_put_lock(int lock);
#endif

9
src/liblxc/log.c Normal file
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@ -0,0 +1,9 @@
#include <stdio.h>
#include <errno.h>
#include <stdarg.h>
#include <log.h>
#define MAXTIMELEN 47;
#define ERRNO_FORMAT "%d (%s)"

20
src/liblxc/log.h Normal file
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@ -0,0 +1,20 @@
#ifndef _log_h
#define _log_h
#define lxc_log(format, level, ...) do { \
fprintf(stderr, "[%s] \t%s:%d - " format "\n", \
level, __FUNCTION__, __LINE__, ##__VA_ARGS__); \
} while (0)
#define lxc_log_error(format, ...) lxc_log(format, "error", ##__VA_ARGS__);
#define lxc_log_warning(format, ...) lxc_log(format, "warning", ##__VA_ARGS__);
#define lxc_log_info(format, ...) lxc_log(format, "info", ##__VA_ARGS__);
#define lxc_log_debug(format, ...) lxc_log(format, "debug", ##__VA_ARGS__);
#define lxc_log_trace(format, ...) lxc_log(format, "trace", ##__VA_ARGS__);
#define lxc_log_syserror(format, ...) do { \
fprintf(stderr, "[SYSERROR][%s] \t%s:%d - " format "\n", \
strerror(errno),__FUNCTION__, __LINE__, \
##__VA_ARGS__); \
} while (0)
#endif

220
src/liblxc/lxc.h Normal file
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@ -0,0 +1,220 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __lxc_h
#define __lxc_h
/**
Following code is for liblxc.
liblxc/lxc.h will contain exports of liblxc
**/
#define LXCPATH "/var/lxc"
#define MAXPIDLEN 20
struct lxc_mem_stat;
struct lxc_conf;
typedef enum {
STOPPED, STARTING, RUNNING, STOPPING,
ABORTING, FREEZING, FROZEN, MAX_STATE,
} lxc_state_t;
typedef int (*lxc_callback_t)(const char *name, int argc,
char *argv[], void *data);
/*
* Create the container object. Creates the /lxc/<name> directory
* and fills it with the files corresponding to the configuration
* structure passed as parameter.
* The first container will create the /lxc directory.
* @name : the name of the container
* @conf : the configuration data for the container
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_create(const char *name, struct lxc_conf *conf);
/*
* Destroy the container object. Removes the files into the /lxc/<name>
* directory and removes the <name> directory.
* The last container will remove the /lxc directory.
* @name : the name of the container to be detroyed
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_destroy(const char *name);
/*
* Start the container previously created with lxc_create.
* @name : the name of the container
* @argc : the number of arguments of the command line
* @argv : an array of char * corresponding to the commande line
* @prestart : hooks will be called just before the command execs
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_start(const char *name, int argc, char *argv[],
lxc_callback_t prestart, void *data);
/*
* Create the container and start it directly, using the argc, argv
* parameter. This command is for application container.
* At the end of the exec'ed command, the container will
* automatically autodestroy.
* @name : the name of the container
* @conf : the configuration data
* @argc : the number of arguments of the command line
* @argv : an array of char * corresponding to the commande line
* @preexec : hooks will be called just before the command execs
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_execute(const char *name, int argc, char *argv[],
lxc_callback_t preexec, void *data);
/*
* Stop the container previously started with lxc_start or lxc_exec
* @name : the name of the container
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_stop(const char *name);
/*
* Monitor the container, each time the state of the container
* is changed, a state data is send through a file descriptor passed to
* the function with output_fd.
* The function will block until the container is destroyed.
* @name : the name of the contaier
* @output_fd : the file descriptor where to send the states
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_monitor(const char *name, int output_fd);
/*
* Show the console of the container.
* @name : the name of container
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_console(const char *name);
/*
* Freeze all the tasks running inside the container <name>
* @name : the container name
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_freeze(const char *name);
/*
* Unfreeze all previously frozen tasks.
* @name : the name of the container
* Return 0 on sucess, < 0 otherwise
*/
extern int lxc_unfreeze(const char *name);
/*
* Retrieve the container state
* @name : the name of the container
* Returns the state of the container on success, < 0 otherwise
*/
extern lxc_state_t lxc_state(const char *name);
/*
* Send a signal to all processes of the container. This is the same
* behavior of the well-known 'killpg' command except it is related
* to all tasks belonging to a container.
* @name : the name of the container
* @signum : the signal number to be sent
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_kill(const char *name, int signum);
/*
* Change the priority of the container
* @name : the name of the container
* @priority : an integer representing the desired priority
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_cgroup_set_priority(const char *name, int priority);
/*
* Retrieve the priority of the container
* @name : the name of the container
* @priority : a pointer to an int where the priority will be stored
* Returns 0 on success, < 0 otherwise
*/
extern int lxc_cgroup_get_priority(const char *name, int *priority);
/*
* Set the maximum memory usable by the container
* @name : the name of the container
* @memmax : the maximum usable memory in bytes
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_cgroup_set_memory(const char *name, size_t memmax);
/*
* Get the maximum memory usable by the container
* @name : the name of the container
* @memmax : a pointer to a size_t where the value will be stored
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_cgroup_get_memory(const char *name, size_t *memmax);
/*
* Get the memory statistics of the container
* @name : the name of the container
* @memstat : a pointer to a structure defining the memory statistic
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_cgroup_get_memstat(const char *name,
struct lxc_mem_stat *memstat);
/*
* Set the cpuset for the container
* @name : the name of the container
* @cpumask : a bitmask representing the cpu maps
* @len : the len of the bitmask
* @shared : a boolean specifying if the cpu could be shared with
* processes not belonging to the container
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_cgroup_set_cpuset(const char *name, long *cpumask,
int len, int shared);
/*
* Get the actual cpuset for the container
* @cpumask : a bitmask representing the cpu maps
* @len : the len of the bitmask
* @shared : a boolean specifying if the cpu is shared with
* processes not belonging to the container
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_cgroup_get_cpuset(const char *name, long *cpumask,
int len, int *shared);
/*
* Get the cpu usage of the container
* @name : the name of the container
* @usage : a value to be filled with the current container cpu usage
* Returns 0 on sucess, < 0 otherwise
*/
extern int lxc_cgroup_get_cpu_usage(const char *name, long long *usage);
#endif

97
src/liblxc/monitor.c Normal file
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@ -0,0 +1,97 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/inotify.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <log.h>
int lxc_monitor(const char *name, int output_fd)
{
char path[MAXPATHLEN];
int err = -1, nfd, wfd, state;
nfd = inotify_init();
if (nfd < 0) {
lxc_log_syserror("failed to initialize inotify");
return -1;
}
snprintf(path, MAXPATHLEN, LXCPATH "/%s/state", name);
wfd = inotify_add_watch(nfd, path, IN_DELETE_SELF|IN_CLOSE_WRITE);
if (wfd < 0) {
lxc_log_syserror("failed to add a watch on %s", path);
goto out;
}
for(;;) {
struct inotify_event evt;
if (read(nfd, &evt, sizeof(evt)) < 0) {
lxc_log_syserror("failed to read inotify event");
goto out;
}
if (evt.mask & IN_CLOSE_WRITE) {
state = lxc_getstate(name);
if (state < 0) {
lxc_log_error("failed to get the state for %s",
name);
goto out;
}
if (write(output_fd, &state, sizeof(state)) < 0) {
lxc_log_syserror("failed to send state to %d",
output_fd);
goto out;
}
continue;
}
if (evt.mask & IN_DELETE_SELF) {
close(output_fd);
err = 0;
goto out;
}
lxc_log_error("unknown evt for inotity (%d)", evt.mask);
goto out;
}
out:
inotify_rm_watch(nfd, wfd);
close(nfd);
return err;
}

71
src/liblxc/namespace.h Normal file
View File

@ -0,0 +1,71 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __namespace_h
#define __namespace_h
#include <syscall.h>
#ifndef CLONE_FS
# define CLONE_FS 0x00000200
#endif
#ifndef CLONE_NEWNS
# define CLONE_NEWNS 0x00020000
#endif
#ifndef CLONE_NEWUTS
# define CLONE_NEWUTS 0x04000000
#endif
#ifndef CLONE_NEWIPC
# define CLONE_NEWIPC 0x08000000
#endif
#ifndef CLONE_NEWUSER
# define CLONE_NEWUSER 0x10000000
#endif
#ifndef CLONE_NEWPID
# define CLONE_NEWPID 0x20000000
#endif
#ifndef CLONE_NEWNET
# define CLONE_NEWNET 0x40000000
#endif
#ifndef __NR_unshare
# ifdef __i386__
# define __NR_unshare 310
# elif __x86_64__
# define __NR_unshare 272
# elif __ia64__
# define __NR_unshare 1296
# elif __s390__
# define __NR_unshare 303
# elif __powerpc__
# define __NR_unshare 282
#else
# error "unsupported architecture"
# endif
#endif
#if __i386__ || __x86_64__ || __s390__ || __powerpc__
# define fork_ns(flags) syscall(SYS_clone, flags|SIGCHLD, NULL);
#elif __ia64__
# define fork_ns(flags) syscall(SYS_clone2, flags|SIGCHLD, NULL);
#else
# error "unsupported architecture"
#endif
#define unshare_ns(flags) syscall(__NR_unshare, flags, NULL);
#endif

727
src/liblxc/network.c Normal file
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@ -0,0 +1,727 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCe
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <sys/param.h>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <netinet/in.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/sockios.h>
#include <linux/if_bridge.h>
#include <nl.h>
#include <network.h>
#ifndef IFLA_LINKMODE
# define IFLA_LINKMODE 17
#endif
#ifndef IFLA_LINKINFO
# define IFLA_LINKINFO 18
#endif
#ifndef IFLA_NET_NS_PID
# define IFLA_NET_NS_PID 19
#endif
#ifndef IFLA_INFO_KIND
# define IFLA_INFO_KIND 1
#endif
#ifndef IFLA_INFO_DATA
# define IFLA_INFO_DATA 2
#endif
#ifndef VETH_INFO_PEER
# define VETH_INFO_PEER 1
#endif
struct link_req {
struct nlmsg nlmsg;
struct ifinfomsg ifinfomsg;
};
struct ip_req {
struct nlmsg nlmsg;
struct ifaddrmsg ifa;
};
int device_move(const char *name, pid_t pid)
{
struct nl_handler nlh;
struct nlmsg *nlmsg = NULL;
struct link_req *link_req;
int index, len, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
len = strlen(name);
if (len == 1 || len > IFNAMSIZ)
goto out;
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
index = if_nametoindex(name);
if (!index)
goto out;
link_req = (struct link_req *)nlmsg;
link_req->ifinfomsg.ifi_family = AF_UNSPEC;
link_req->ifinfomsg.ifi_index = index;
nlmsg->nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
nlmsg->nlmsghdr.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK;
nlmsg->nlmsghdr.nlmsg_type = RTM_NEWLINK;
if (nla_put_u32(nlmsg, IFLA_NET_NS_PID, pid))
goto out;
if (nla_put_string(nlmsg, IFLA_IFNAME, name))
goto out;
if (netlink_transaction(&nlh, nlmsg, nlmsg))
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(nlmsg);
return err;
}
extern int device_delete(const char *name)
{
struct nl_handler nlh;
struct nlmsg *nlmsg = NULL, *answer = NULL;
struct link_req *link_req;
int index, len, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
len = strlen(name);
if (len == 1 || len > IFNAMSIZ)
goto out;
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
answer = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!answer)
goto out;
index = if_nametoindex(name);
if (!index)
goto out;
link_req = (struct link_req *)nlmsg;
link_req->ifinfomsg.ifi_family = AF_UNSPEC;
link_req->ifinfomsg.ifi_index = index;
nlmsg->nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
nlmsg->nlmsghdr.nlmsg_flags = NLM_F_ACK|NLM_F_REQUEST;
nlmsg->nlmsghdr.nlmsg_type = RTM_DELLINK;
if (nla_put_string(nlmsg, IFLA_IFNAME, name))
goto out;
if (netlink_transaction(&nlh, nlmsg, answer))
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(answer);
nlmsg_free(nlmsg);
return err;
}
static int device_set_flag(const char *name, int flag)
{
struct nl_handler nlh;
struct nlmsg *nlmsg = NULL, *answer = NULL;
struct link_req *link_req;
int index, len, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
len = strlen(name);
if (len == 1 || len > IFNAMSIZ)
goto out;
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
answer = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!answer)
goto out;
index = if_nametoindex(name);
if (!index)
goto out;
link_req = (struct link_req *)nlmsg;
link_req->ifinfomsg.ifi_family = AF_UNSPEC;
link_req->ifinfomsg.ifi_index = index;
link_req->ifinfomsg.ifi_change |= IFF_UP;
link_req->ifinfomsg.ifi_flags |= flag;
nlmsg->nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
nlmsg->nlmsghdr.nlmsg_flags = NLM_F_REQUEST|NLM_F_ACK;
nlmsg->nlmsghdr.nlmsg_type = RTM_NEWLINK;
err = netlink_transaction(&nlh, nlmsg, answer);
if (err < 0)
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(nlmsg);
nlmsg_free(answer);
return err;
}
int device_up(const char *name)
{
return device_set_flag(name, IFF_UP);
}
int device_down(const char *name)
{
return device_set_flag(name, 0);
}
int device_rename(const char *oldname, const char *newname)
{
struct nl_handler nlh;
struct nlmsg *nlmsg = NULL, *answer = NULL;
struct link_req *link_req;
int index, len, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
len = strlen(oldname);
if (len == 1 || len > IFNAMSIZ)
goto out;
len = strlen(newname);
if (len == 1 || len > IFNAMSIZ)
goto out;
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
answer = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!answer)
goto out;
index = if_nametoindex(oldname);
if (!index)
goto out;
link_req = (struct link_req *)nlmsg;
link_req->ifinfomsg.ifi_family = AF_UNSPEC;
link_req->ifinfomsg.ifi_index = index;
nlmsg->nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
nlmsg->nlmsghdr.nlmsg_flags = NLM_F_ACK|NLM_F_REQUEST;
nlmsg->nlmsghdr.nlmsg_type = RTM_NEWLINK;
if (nla_put_string(nlmsg, IFLA_IFNAME, newname))
goto out;
if (netlink_transaction(&nlh, nlmsg, answer))
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(answer);
nlmsg_free(nlmsg);
return err;
}
int veth_create(const char *name1, const char *name2)
{
struct nl_handler nlh;
struct nlmsg *nlmsg = NULL, *answer = NULL;
struct link_req *link_req;
struct rtattr *nest1, *nest2, *nest3;
int len, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
len = strlen(name1);
if (len == 1 || len > IFNAMSIZ)
goto out;
len = strlen(name2);
if (len == 1 || len > IFNAMSIZ)
goto out;
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
answer = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!answer)
goto out;
link_req = (struct link_req *)nlmsg;
link_req->ifinfomsg.ifi_family = AF_UNSPEC;
nlmsg->nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
nlmsg->nlmsghdr.nlmsg_flags =
NLM_F_REQUEST|NLM_F_CREATE|NLM_F_EXCL|NLM_F_ACK;
nlmsg->nlmsghdr.nlmsg_type = RTM_NEWLINK;
nest1 = nla_begin_nested(nlmsg, IFLA_LINKINFO);
if (!nest1)
goto out;
if (nla_put_string(nlmsg, IFLA_INFO_KIND, "veth"))
goto out;
nest2 = nla_begin_nested(nlmsg, IFLA_INFO_DATA);
if (!nest2)
goto out;
nest3 = nla_begin_nested(nlmsg, VETH_INFO_PEER);
if (!nest3)
goto out;
nlmsg->nlmsghdr.nlmsg_len += sizeof(struct ifinfomsg);
if (nla_put_string(nlmsg, IFLA_IFNAME, name2))
goto out;
nla_end_nested(nlmsg, nest3);
nla_end_nested(nlmsg, nest2);
nla_end_nested(nlmsg, nest1);
if (nla_put_string(nlmsg, IFLA_IFNAME, name1))
goto out;
if (netlink_transaction(&nlh, nlmsg, answer))
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(answer);
nlmsg_free(nlmsg);
return err;
}
int macvlan_create(const char *master, const char *name)
{
struct nl_handler nlh;
struct nlmsg *nlmsg = NULL, *answer = NULL;
struct link_req *link_req;
struct rtattr *nest;
int index, len, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
len = strlen(master);
if (len == 1 || len > IFNAMSIZ)
goto out;
len = strlen(name);
if (len == 1 || len > IFNAMSIZ)
goto out;
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
answer = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!answer)
goto out;
index = if_nametoindex(master);
if (!index)
goto out;
link_req = (struct link_req *)nlmsg;
link_req->ifinfomsg.ifi_family = AF_UNSPEC;
nlmsg->nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
nlmsg->nlmsghdr.nlmsg_flags =
NLM_F_REQUEST|NLM_F_CREATE|NLM_F_EXCL|NLM_F_ACK;
nlmsg->nlmsghdr.nlmsg_type = RTM_NEWLINK;
nest = nla_begin_nested(nlmsg, IFLA_LINKINFO);
if (!nest)
goto out;
if (nla_put_string(nlmsg, IFLA_INFO_KIND, "macvlan"))
goto out;
nla_end_nested(nlmsg, nest);
if (nla_put_u32(nlmsg, IFLA_LINK, index))
goto out;
if (nla_put_string(nlmsg, IFLA_IFNAME, name))
goto out;
if (netlink_transaction(&nlh, nlmsg, answer))
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(answer);
nlmsg_free(nlmsg);
return err;
}
static int proc_sys_net_write(const char *path, const char *value)
{
int fd, err = 0;
fd = open(path, O_WRONLY);
if (fd < 0)
return -errno;
if (write(fd, value, strlen(value)) < 0)
err = -errno;
close(fd);
return err;
}
static int ip_forward_set(const char *ifname, int family, int flag)
{
char *path;
int ret;
if (family != AF_INET && family != AF_INET6)
return -1;
asprintf(&path, "/proc/sys/net/%s/conf/%s/forwarding",
family == AF_INET?"ipv4":"ipv6" , ifname);
ret = proc_sys_net_write(path, flag?"1":"0");
free(path);
return ret;
}
int ip_forward_on(const char *ifname, int family)
{
return ip_forward_set(ifname, family, 1);
}
int ip_forward_off(const char *ifname, int family)
{
return ip_forward_set(ifname, family, 0);
}
static int neigh_proxy_set(const char *ifname, int family, int flag)
{
char path[MAXPATHLEN];
if (family != AF_INET && family != AF_INET6)
return -1;
sprintf(path, "/proc/sys/net/%s/conf/%s/%s",
family == AF_INET?"ipv4":"ipv6" , ifname,
family == AF_INET?"proxy_arp":"proxy_ndp");
return proc_sys_net_write(path, flag?"1":"0");
}
int neigh_proxy_on(const char *name, int family)
{
return neigh_proxy_set(name, family, 1);
}
int neigh_proxy_off(const char *name, int family)
{
return neigh_proxy_set(name, family, 0);
}
int lxc_convert_mac(char *macaddr, struct sockaddr *sockaddr)
{
unsigned char *data;
char c;
int i = 0;
unsigned val;
sockaddr->sa_family = ARPHRD_ETHER;
data = (unsigned char *)sockaddr->sa_data;
while ((*macaddr != '\0') && (i < ETH_ALEN)) {
val = 0;
c = *macaddr++;
if (isdigit(c))
val = c - '0';
else if (c >= 'a' && c <= 'f')
val = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val = c - 'A' + 10;
else {
return -1;
}
val <<= 4;
c = *macaddr;
if (isdigit(c))
val |= c - '0';
else if (c >= 'a' && c <= 'f')
val |= c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
val |= c - 'A' + 10;
else if (c == ':' || c == 0)
val >>= 4;
else {
return -1;
}
if (c != 0)
macaddr++;
*data++ = (unsigned char) (val & 0377);
i++;
if (*macaddr == ':')
macaddr++;
}
return 0;
}
int ip_addr_add(const char *ifname, const char *addr,
int prefix, const char *bcast)
{
struct nl_handler nlh;
struct in_addr in_addr;
/* struct in_addr in_bcast; */
struct nlmsg *nlmsg = NULL, *answer = NULL;
struct ip_req *ip_req;
int ifindex, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
if (inet_pton(AF_INET, addr, (void *)&in_addr) < 0)
goto out;
/* if (inet_pton(AF_INET, bcast, (void *)&in_bcast) < 0) */
/* goto out; */
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
answer = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!answer)
goto out;
ifindex = if_nametoindex(ifname);
if (!ifindex)
goto out;
ip_req = (struct ip_req *)nlmsg;
ip_req->nlmsg.nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
ip_req->nlmsg.nlmsghdr.nlmsg_flags =
NLM_F_ACK|NLM_F_REQUEST|NLM_F_CREATE|NLM_F_EXCL;
ip_req->nlmsg.nlmsghdr.nlmsg_type = RTM_NEWADDR;
ip_req->ifa.ifa_prefixlen = prefix;
ip_req->ifa.ifa_index = ifindex;
ip_req->ifa.ifa_family = AF_INET;
ip_req->ifa.ifa_scope = 0;
if (nla_put_buffer(nlmsg, IFA_LOCAL, &in_addr, sizeof(in_addr)))
goto out;
if (nla_put_buffer(nlmsg, IFA_ADDRESS, &in_addr, sizeof(in_addr)))
goto out;
/* if (in_bcast.s_addr != INADDR_ANY) */
/* if (nla_put_buffer(nlmsg, IFA_BROADCAST, &in_bcast, */
/* sizeof(in_bcast))) */
/* goto out; */
if (netlink_transaction(&nlh, nlmsg, answer))
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(answer);
nlmsg_free(nlmsg);
return err;
}
int ip6_addr_add(const char *ifname, const char *addr,
int prefix, const char *bcast)
{
struct nl_handler nlh;
struct in6_addr in6_addr;
/* struct in6_addr in6_bcast; */
struct nlmsg *nlmsg = NULL, *answer = NULL;
struct ip_req *ip_req;
int ifindex, err = -1;
if (netlink_open(&nlh, NETLINK_ROUTE))
return -1;
if (inet_pton(AF_INET6, addr, (void *)&in6_addr) < 0)
goto out;
/* if (inet_pton(AF_INET6, bcast, (void *)&in6_bcast) < 0) */
/* goto out; */
nlmsg = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!nlmsg)
goto out;
answer = nlmsg_alloc(NLMSG_GOOD_SIZE);
if (!answer)
goto out;
ifindex = if_nametoindex(ifname);
if (!ifindex)
goto out;
ip_req = (struct ip_req *)nlmsg;
ip_req->nlmsg.nlmsghdr.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifaddrmsg));
ip_req->nlmsg.nlmsghdr.nlmsg_flags =
NLM_F_ACK|NLM_F_REQUEST|NLM_F_CREATE|NLM_F_EXCL;
ip_req->nlmsg.nlmsghdr.nlmsg_type = RTM_NEWADDR;
ip_req->ifa.ifa_prefixlen = prefix;
ip_req->ifa.ifa_index = ifindex;
ip_req->ifa.ifa_family = AF_INET6;
ip_req->ifa.ifa_scope = 0;
if (nla_put_buffer(nlmsg, IFA_LOCAL, &in6_addr, sizeof(in6_addr)))
goto out;
if (nla_put_buffer(nlmsg, IFA_ADDRESS, &in6_addr, sizeof(in6_addr)))
goto out;
/* if (in6_bcast.s6_addr != in6addr_any.s6_addr) */
/* if (nla_put_buffer(nlmsg, IFA_BROADCAST, &in6_bcast, */
/* sizeof(in6_bcast))) */
/* goto out; */
if (netlink_transaction(&nlh, nlmsg, answer))
goto out;
err = 0;
out:
netlink_close(&nlh);
nlmsg_free(answer);
nlmsg_free(nlmsg);
return err;
}
static int bridge_add_del_interface(const char *bridge,
const char *ifname, int detach)
{
int fd, index, err;
struct ifreq ifr;
if (strlen(ifname) > IFNAMSIZ)
return -1;
index = if_nametoindex(ifname);
if (!index)
return -1;
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0)
return -1;
strncpy(ifr.ifr_name, bridge, IFNAMSIZ);
ifr.ifr_ifindex = index;
err = ioctl(fd, detach?SIOCBRDELIF:SIOCBRADDIF, &ifr);
close(fd);
return err;
}
int bridge_attach(const char *bridge, const char *ifname)
{
return bridge_add_del_interface(bridge, ifname, 0);
}
int bridge_detach(const char *bridge, const char *ifname)
{
return bridge_add_del_interface(bridge, ifname, 1);
}
int lxc_configure_veth(const char *veth1, const char *veth2, const char *bridge)
{
int err = -1;
if (veth_create(veth1, veth2)) {
fprintf(stderr, "failed to create veth interfaces %s/%s\n",
veth1, veth2);
return -1;
}
if (bridge_attach(bridge, veth1)) {
fprintf(stderr, "failed to attach %s to %s\n",
veth1, bridge);
goto err;
}
err = 0;
out:
return err;
err:
device_delete(veth1);
goto out;
}
int lxc_configure_macvlan(const char *link, const char *peer)
{
if (macvlan_create(link, peer)) {
fprintf(stderr, "failed to create %s", peer);
return -1;
}
return 0;
}

126
src/liblxc/network.h Normal file
View File

@ -0,0 +1,126 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _network_h
#define _network_h
/*
* Create a macvlan network device
*/
extern int lxc_configure_macvlan(const char *link, const char *peer);
/*
* Create a veth pair virtual device
*/
extern int lxc_configure_veth(const char *veth1, const char *veth2,
const char *bridge);
/*
* Convert a string mac address to a socket structure
*/
extern int lxc_convert_mac(char *macaddr, struct sockaddr *sockaddr);
/*
* Move a device between namespaces
*/
extern int device_move(const char *name, pid_t pid);
/*
* Delete a network device
*/
extern int device_delete(const char *name);
/*
* Set the device network up
*/
extern int device_up(const char *name);
/*
* Set the device network down
*/
extern int device_down(const char *name);
/*
* Change the device name
*/
extern int device_rename(const char *oldname, const char *newname);
/*
* Create a veth network device
*/
extern int veth_create(const char *name1, const char *name2);
/*
* Create a macvlan network device
*/
extern int macvlan_create(const char *master, const char *name);
/*
* Activate forwarding
*/
extern int ip_forward_on(const char *name, int family);
/*
* Disable forwarding
*/
extern int ip_forward_off(const char *name, int family);
/*
* Set ip address
*/
extern int ip_addr_add(const char *ifname, const char *addr,
int prefix, const char *bcast);
extern int ip6_addr_add(const char *ifname, const char *addr,
int prefix, const char *bcast);
/*
* Attach an interface to the bridge
*/
extern int bridge_attach(const char *bridge, const char *ifname);
/*
* Detach an interface from the bridge
*/
extern int bridge_detach(const char *bridge, const char *ifname);
/*
* Create default gateway
*/
extern int route_create_default(const char *addr, const char *ifname, int gateway);
/*
* Delete default gateway
*/
extern int route_delete_default(const char *addr, const char *ifname, int gateway);
/*
* Activate neighbor proxying
*/
extern int neigh_proxy_on(const char *name, int family);
/*
* Disable neighbor proxying
*/
extern int neigh_proxy_off(const char *name, int family);
#endif

260
src/liblxc/nl.c Normal file
View File

@ -0,0 +1,260 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sys/socket.h>
#include <string.h>
#include <stdio.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <stdlib.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <nl.h>
#define NLMSG_TAIL(nmsg) \
((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
extern size_t nlmsg_len(const struct nlmsg *nlmsg)
{
return nlmsg->nlmsghdr.nlmsg_len - NLMSG_HDRLEN;
}
extern void *nlmsg_data(struct nlmsg *nlmsg)
{
char *data = ((char *)nlmsg) + NLMSG_ALIGN(sizeof(struct nlmsghdr));
if (!nlmsg_len(nlmsg))
return NULL;
return data;
}
static int nla_put(struct nlmsg *nlmsg, int attr,
const void *data, size_t len)
{
struct rtattr *rta;
size_t rtalen = RTA_LENGTH(len);
rta = NLMSG_TAIL(&nlmsg->nlmsghdr);
rta->rta_type = attr;
rta->rta_len = rtalen;
memcpy(RTA_DATA(rta), data, len);
nlmsg->nlmsghdr.nlmsg_len =
NLMSG_ALIGN(nlmsg->nlmsghdr.nlmsg_len) + RTA_ALIGN(rtalen);
return 0;
}
extern int nla_put_buffer(struct nlmsg *nlmsg, int attr,
const void *data, size_t size)
{
return nla_put(nlmsg, attr, data, size);
}
extern int nla_put_string(struct nlmsg *nlmsg, int attr, const char *string)
{
return nla_put(nlmsg, attr, string, strlen(string) + 1);
}
extern int nla_put_u32(struct nlmsg *nlmsg, int attr, int value)
{
return nla_put(nlmsg, attr, &value, sizeof(value));
}
extern int nla_put_attr(struct nlmsg *nlmsg, int attr)
{
return nla_put(nlmsg, attr, NULL, 0);
}
struct rtattr *nla_begin_nested(struct nlmsg *nlmsg, int attr)
{
struct rtattr *rtattr = NLMSG_TAIL(&nlmsg->nlmsghdr);
if (nla_put_attr(nlmsg, attr))
return NULL;
return rtattr;
}
void nla_end_nested(struct nlmsg *nlmsg, struct rtattr *attr)
{
attr->rta_len = (void *)NLMSG_TAIL(&nlmsg->nlmsghdr) - (void *)attr;
}
extern struct nlmsg *nlmsg_alloc(size_t size)
{
struct nlmsg *nlmsg;
size_t len = NLMSG_ALIGN(size) + NLMSG_ALIGN(sizeof(struct nlmsghdr *));
nlmsg = (struct nlmsg *)malloc(len);
if (!nlmsg)
return NULL;
memset(nlmsg, 0, len);
nlmsg->nlmsghdr.nlmsg_len = NLMSG_ALIGN(size);
return nlmsg;
}
extern void nlmsg_free(struct nlmsg *nlmsg)
{
free(nlmsg);
}
extern int netlink_rcv(struct nl_handler *handler, struct nlmsg *answer)
{
int ret;
struct sockaddr_nl nladdr;
struct iovec iov = {
.iov_base = answer,
.iov_len = answer->nlmsghdr.nlmsg_len,
};
struct msghdr msg = {
.msg_name = &nladdr,
.msg_namelen = sizeof(nladdr),
.msg_iov = &iov,
.msg_iovlen = 1,
};
memset(&nladdr, 0, sizeof(nladdr));
nladdr.nl_family = AF_NETLINK;
nladdr.nl_pid = 0;
nladdr.nl_groups = 0;
again:
ret = recvmsg(handler->fd, &msg, 0);
if (ret < 0) {
if (errno == EINTR)
goto again;
return -errno;
}
if (!ret)
return 0;
if (msg.msg_flags & MSG_TRUNC)
return -EMSGSIZE;
return ret;
}
extern int netlink_send(struct nl_handler *handler, struct nlmsg *nlmsg)
{
struct sockaddr_nl nladdr;
struct iovec iov = {
.iov_base = (void*)nlmsg,
.iov_len = nlmsg->nlmsghdr.nlmsg_len,
};
struct msghdr msg = {
.msg_name = &nladdr,
.msg_namelen = sizeof(nladdr),
.msg_iov = &iov,
.msg_iovlen = 1,
};
int ret;
memset(&nladdr, 0, sizeof(nladdr));
nladdr.nl_family = AF_NETLINK;
nladdr.nl_pid = 0;
nladdr.nl_groups = 0;
ret = sendmsg(handler->fd, &msg, 0);
if (ret < 0) {
return -errno;
}
return ret;
}
extern int netlink_transaction(struct nl_handler *handler,
struct nlmsg *request, struct nlmsg *answer)
{
int ret;
ret = netlink_send(handler, request);
if (ret < 0)
return ret;
ret = netlink_rcv(handler, answer);
if (ret < 0)
return ret;
if (answer->nlmsghdr.nlmsg_type == NLMSG_ERROR) {
struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(answer);
errno = -err->error;
return -errno;
}
return 0;
}
extern int netlink_open(struct nl_handler *handler, int protocol)
{
socklen_t socklen;
int sndbuf = 32768;
int rcvbuf = 32768;
memset(handler, 0, sizeof(*handler));
handler->fd = socket(AF_NETLINK, SOCK_RAW, protocol);
if (handler->fd < 0)
return -errno;
if (setsockopt(handler->fd, SOL_SOCKET, SO_SNDBUF,
&sndbuf, sizeof(sndbuf)) < 0)
return -errno;
if (setsockopt(handler->fd, SOL_SOCKET, SO_RCVBUF,
&rcvbuf,sizeof(rcvbuf)) < 0)
return -errno;
memset(&handler->local, 0, sizeof(handler->local));
handler->local.nl_family = AF_NETLINK;
handler->local.nl_groups = 0;
if (bind(handler->fd, (struct sockaddr*)&handler->local,
sizeof(handler->local)) < 0)
return -errno;
socklen = sizeof(handler->local);
if (getsockname(handler->fd, (struct sockaddr*)&handler->local,
&socklen) < 0)
return -errno;
if (socklen != sizeof(handler->local))
return -EINVAL;
if (handler->local.nl_family != AF_NETLINK)
return -EINVAL;
handler->seq = time(NULL);
return 0;
}
extern int netlink_close(struct nl_handler *handler)
{
close(handler->fd);
handler->fd = -1;
return 0;
}

228
src/liblxc/nl.h Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __nl_h
#define __nl_h
/*
* Use this as a good size to allocate generic netlink messages
*/
#ifndef PAGE_SIZE
#define PAGE_SIZE 4096
#endif
#define NLMSG_GOOD_SIZE (2*PAGE_SIZE)
#define NLMSG_TAIL(nmsg) \
((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
#define NLA_DATA(na) ((void *)((char*)(na) + NLA_HDRLEN))
#define NLA_NEXT_ATTR(attr) ((void *)((char *)attr) + NLA_ALIGN(attr->nla_len))
/*
* struct nl_handler : the handler for netlink sockets, this structure
* is used all along the netlink socket life cycle to specify the
* netlink socket to be used.
*
* @fd: the file descriptor of the netlink socket
* @seq: the sequence number of the netlink messages
* @local: the bind address
* @peer: the peer address
*/
struct nl_handler {
int fd;
int seq;
struct sockaddr_nl local;
struct sockaddr_nl peer;
};
/*
* struct nlmsg : the netlink message structure, it consists just
* on a definition for a nlmsghdr. This message is to be used to
* be allocated with netlink_alloc.
* @nlmsghdr : a pointer to a netlink message header, this field
* _must_ be always the first field of this structure
*/
struct nlmsg {
struct nlmsghdr nlmsghdr;
};
/*
* netlink_open : open a netlink socket, the function will
* fill the handler with the right value
*
* @handler: a netlink handler to be used all along the netlink
* socket life cycle
* @protocol: specify the protocol to be used when opening the
* netlink socket
*
* Return 0 on success, < 0 otherwise
*/
int netlink_open(struct nl_handler *handler, int protocol);
/*
* netlink_close : close a netlink socket, after this call,
* the handler is no longer valid
*
* @handler: a handler to the netlink socket
*
* Returns 0 on success, < 0 otherwise
*/
int netlink_close(struct nl_handler *handler);
/*
* netlink_rcv : receive a netlink message from the kernel.
* It is up to the caller to manage the allocation of the
* netlink message
*
* @handler: a handler to the netlink socket
* @nlmsg: a netlink message
*
* Returns 0 on success, < 0 otherwise
*/
int netlink_rcv(struct nl_handler *handler, struct nlmsg *nlmsg);
/*
* netlink_send: send a netlink message to the kernel. It is up
* to the caller to manage the allocate of the netlink message
*
* @handler: a handler to the netlink socket
* @nlmsg: a netlink message
*
* Returns 0 on success, < 0 otherwise
*/
int netlink_send(struct nl_handler *handler, struct nlmsg *nlmsg);
/*
* netlink_transaction: send a request to the kernel and read the response.
* This is useful for transactional protocol. It is up to the caller
* to manage the allocation of the netlink message.
*
* @handler: a handler to a opened netlink socket
* @request: a netlink message pointer containing the request
* @answer: a netlink message pointer to receive the result
*
* Returns 0 on success, < 0 otherwise
*/
int netlink_transaction(struct nl_handler *handler,
struct nlmsg *request, struct nlmsg *anwser);
/*
* nla_put_string: copy a null terminated string to a netlink message
* attribute
*
* @nlmsg: the netlink message to be filled
* @attr: the attribute name of the string
* @string: a null terminated string to be copied to the netlink message
*
* Returns 0 on success, < 0 otherwise
*/
int nla_put_string(struct nlmsg *nlmsg, int attr, const char *string);
/*
* nla_put_buffer: copy a buffer with a specified size to a netlink
* message attribute
*
* @nlmsg: the netlink message to be filled
* @attr: the attribute name of the string
* @data: a pointer to a buffer
* @size: the size of the buffer
*
* Returns 0 on success, < 0 otherwise
*/
int nla_put_buffer(struct nlmsg *nlmsg, int attr,
const void *data, size_t size);
/*
* nla_put_u32: copy an integer to a netlink message attribute
*
* @nlmsg: the netlink message to be filled
* @attr: the attribute name of the integer
* @string: an integer to be copied to the netlink message
*
* Returns 0 on success, < 0 otherwise
*/
int nla_put_u32(struct nlmsg *nlmsg, int attr, int value);
/*
* nla_put_attr: add an attribute name to a netlink
*
* @nlmsg: the netlink message to be filled
* @attr: the attribute name of the integer
*
* Returns 0 on success, < 0 otherwise
*/
int nla_put_attr(struct nlmsg *nlmsg, int attr);
/*
* nla_begin_nested: begin the nesting attribute
*
* @nlmsg: the netlink message to be filled
* @attr: the netsted attribute name
*
* Returns current nested pointer to be reused
* to nla_end_nested.
*/
struct rtattr *nla_begin_nested(struct nlmsg *nlmsg, int attr);
/*
* nla_end_nested: end the nesting attribute
*
* @nlmsg: the netlink message
* @nested: the nested pointer
*
* Returns the current
*/
void nla_end_nested(struct nlmsg *nlmsg, struct rtattr *attr);
/*
* nlmsg_allocate : allocate a netlink message. The netlink format message
* is a header, a padding, a payload and a padding again.
* When a netlink message is allocated, the size specify the
* payload we want. So the real size of the allocated message
* is sizeof(header) + sizeof(padding) + payloadsize + sizeof(padding),
* in other words, the function will allocate more than specified. When
* the buffer is allocated, the content is zeroed.
* The function will also fill the field nlmsg_len with computed size.
* If the allocation must be for the specified size, just use malloc.
*
* @size: the size of the payload to be allocated
*
* Returns a pointer to the newly allocated netlink message, NULL otherwise
*/
struct nlmsg *nlmsg_alloc(size_t size);
/*
* nlmsg_free : free a previously allocate message
*
* @nlmsg: the netlink message to be freed
*/
void nlmsg_free(struct nlmsg *nlmsg);
/*
* nlmsg_data : returns a pointer to the data contained in the netlink message
*
* @nlmsg : the netlink message to get the data
*
* Returns a pointer to the netlink data or NULL if there is no data
*/
void *nlmsg_data(struct nlmsg *nlmsg);
#endif

72
src/liblxc/rtnl.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include <stdio.h>
#include <sys/socket.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <nl.h>
#include <rtnl.h>
extern int rtnetlink_open(struct rtnl_handler *handler)
{
return netlink_open(&handler->nlh, NETLINK_ROUTE);
}
extern int rtnetlink_close(struct rtnl_handler *handler)
{
return netlink_close(&handler->nlh);
}
extern int rtnetlink_rcv(struct rtnl_handler *handler, struct rtnlmsg *rtnlmsg)
{
return netlink_rcv(&handler->nlh, (struct nlmsg *)&rtnlmsg->nlmsghdr);
}
extern int rtnetlink_send(struct rtnl_handler *handler, struct rtnlmsg *rtnlmsg)
{
return netlink_send(&handler->nlh, (struct nlmsg *)&rtnlmsg->nlmsghdr);
}
extern int rtnetlink_transaction(struct rtnl_handler *handler,
struct rtnlmsg *request, struct rtnlmsg *answer)
{
return netlink_transaction(&handler->nlh, (struct nlmsg *)&request->nlmsghdr,
(struct nlmsg *)&answer->nlmsghdr);
}
extern struct rtnlmsg *rtnlmsg_alloc(size_t size)
{
/* size_t len = NLMSG_LENGTH(NLMSG_ALIGN(sizeof(struct rtnlmsghdr))) + size; */
/* return (struct rtnlmsg *)nlmsg_alloc(len); */
return NULL;
}
extern void rtnlmsg_free(struct rtnlmsg *rtnlmsg)
{
free(rtnlmsg);
}

110
src/liblxc/rtnl.h Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __genl_h
#define __genl_h
/*
* Use this as a good size to allocate route netlink messages
*/
#define RTNLMSG_GOOD_SIZE NLMSG_GOOD_SIZE
#define RTNLMSG_DATA(glh) ((void *)(NLMSG_DATA(glh) + RTNL_HDRLEN))
/*
* struct genl_handler : the structure which store the netlink handler
* and the family number
*
* @nlh: the netlink socket handler
*/
struct rtnl_handler
{
struct nl_handler nlh;
};
/*
* struct rtnlmsg : the struct containing the route netlink message
* format
*
* @nlmsghdr: a netlink message header
* @rtnlmsghdr: a route netlink message header pointer
*
*/
struct rtnlmsg {
struct nlmsghdr nlmsghdr;
};
/*
* rtnetlink_open : open a route netlink socket
*
* @handler: a struct rtnl_handler pointer
*
* Returns 0 on success, < 0 otherwise
*/
int rtnetlink_open(struct rtnl_handler *handler);
/*
* genetlink_close : close a route netlink socket
*
* @handler: the handler of the socket to be closed
*
* Returns 0 on success, < 0 otherwise
*/
int rtnetlink_close(struct rtnl_handler *handler);
/*
* rtnetlink_rcv : receive a route netlink socket, it is up
* to the caller to manage the allocation of the route netlink message
*
* @handler: the handler of the route netlink socket
* @rtnlmsg: the pointer to a route netlink message pre-allocated
*
* Returns 0 on success, < 0 otherwise
*/
int rtnetlink_rcv(struct rtnl_handler *handler, struct rtnlmsg *rtnlmsg);
/*
* rtnetlink_send : send a route netlink socket, it is up
* to the caller to manage the allocation of the route netlink message
*
* @handler: the handler of the route netlink socket
* @rtnlmsg: the pointer to a netlink message pre-allocated
*
* Returns 0 on success, < 0 otherwise
*/
int rtnetlink_send(struct rtnl_handler *handler, struct rtnlmsg *rtnlmsg);
struct genlmsg *genlmsg_alloc(size_t size);
void rtnlmsg_free(struct rtnlmsg *rtnlmsg);
/*
* rtnetlink_transaction : send and receive a route netlink message in one shot
*
* @handler: the handler of the route netlink socket
* @request: a route netlink message containing the request to be sent
* @answer: a pre-allocated route netlink message to receive the response
*
* Returns 0 on success, < 0 otherwise
*/
int rtnetlink_transaction(struct rtnl_handler *handler,
struct rtnlmsg *request, struct rtnlmsg *answer);
#endif

261
src/liblxc/start.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <string.h>
#include <stdlib.h>
#include <dirent.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#include <mntent.h>
#include <sys/param.h>
#include <sys/file.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/prctl.h>
#include <sys/wait.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <namespace.h>
#include <network.h>
#include <state.h>
#include <cgroup.h>
#include <utils.h>
#include <list.h>
#include <conf.h>
#include <log.h>
#include <lock.h>
LXC_TTY_HANDLER(SIGINT);
LXC_TTY_HANDLER(SIGQUIT);
int lxc_start(const char *name, int argc, char *argv[],
lxc_callback_t prestart, void *data)
{
char *init = NULL, *val = NULL;
int fd, lock, sv[2], sync = 0, err = -1;
pid_t pid;
int clone_flags;
lock = lxc_get_lock(name);
if (!lock) {
lxc_log_error("'%s' is busy", name);
return -1;
}
if (lock < 0) {
lxc_log_error("failed to acquire lock on '%s':%s",
name, strerror(-lock));
return -1;
}
fcntl(lock, F_SETFD, FD_CLOEXEC);
/* Begin the set the state to STARTING*/
if (lxc_setstate(name, STARTING)) {
lxc_log_error("failed to set state %s", state2str(STARTING));
goto out;
}
/* Synchro socketpair */
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sv)) {
lxc_log_syserror("failed to create communication socketpair");
goto err;
}
/* Avoid signals from terminal */
LXC_TTY_ADD_HANDLER(SIGINT);
LXC_TTY_ADD_HANDLER(SIGQUIT);
clone_flags = CLONE_NEWPID|CLONE_NEWIPC;
if (conf_has_fstab(name))
clone_flags |= CLONE_NEWNS;
if (conf_has_utsname(name))
clone_flags |= CLONE_NEWUTS;
if (conf_has_network(name))
clone_flags |= CLONE_NEWNET;
/* Create a process in a new set of namespaces */
pid = fork_ns(clone_flags);
if (pid < 0) {
lxc_log_syserror("failed to fork into a new namespace");
goto err_fork_ns;
}
if (!pid) {
close(sv[1]);
/* Be sure we don't inherit this after the exec */
fcntl(sv[0], F_SETFD, FD_CLOEXEC);
/* Tell our father he can begin to configure the container */
if (write(sv[0], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to write socket");
return 1;
}
/* Wait for the father to finish the configuration */
if (read(sv[0], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to read socket");
return 1;
}
/* Setup the container, ip, names, utsname, ... */
if (lxc_setup(name)) {
lxc_log_error("failed to setup the container");
if (write(sv[0], &sync, sizeof(sync)) < 0)
lxc_log_syserror("failed to write the socket");
return -1;
}
/* If a callback has been passed, call it before doing exec */
if (prestart)
if (prestart(name, argc, argv, data)) {
lxc_log_error("prestart callback has failed");
return -1;
}
execvp(argv[0], argv);
lxc_log_syserror("failed to exec %s", argv[0]);
/* If the exec fails, tell that to our father */
if (write(sv[0], &sync, sizeof(sync)) < 0)
lxc_log_syserror("failed to write the socket");
return 1;
}
close(sv[0]);
/* Wait for the child to be ready */
if (read(sv[1], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to read the socket");
goto err_pipe_read;
}
/* Create the network configuration */
if (clone_flags & CLONE_NEWNET && conf_create_network(name, pid)) {
lxc_log_error("failed to create the configured network");
goto err_create_network;
}
/* Tell the child to continue its initialization */
if (write(sv[1], &sync, sizeof(sync)) < 0) {
lxc_log_syserror("failed to write the socket");
goto err_pipe_write;
}
/* Wait for the child to exec or returning an error */
err = read(sv[1], &sync, sizeof(sync));
if (err < 0) {
lxc_log_error("failed to read the socket");
goto err_pipe_read2;
}
if (err > 0) {
lxc_log_error("something went wrong with %d", pid);
/* TODO : check status etc ... */
waitpid(pid, NULL, 0);
goto err_child_failed;
}
asprintf(&val, "%d\n", pid);
asprintf(&init, LXCPATH "/%s/init", name);
fd = open(init, O_WRONLY|O_CREAT, S_IRUSR|S_IWUSR);
if (fd < 0) {
lxc_log_syserror("failed to open '%s'", init);
goto err_write;
}
if (write(fd, val, strlen(val)) < 0) {
lxc_log_syserror("failed to write the init pid");
goto err_write;
}
close(fd);
if (lxc_link_nsgroup(name, pid))
lxc_log_warning("cgroupfs not found: cgroup disabled");
if (lxc_setstate(name, RUNNING)) {
lxc_log_error("failed to set state to %s", state2str(RUNNING));
goto err_state_failed;
}
wait_again:
if (waitpid(pid, NULL, 0) < 0) {
if (errno == EINTR)
goto wait_again;
lxc_log_syserror("failed to wait the pid %d", pid);
goto err_waitpid_failed;
}
if (lxc_setstate(name, STOPPING))
lxc_log_error("failed to set state %s", state2str(STOPPING));
if (clone_flags & CLONE_NEWNET && conf_destroy_network(name))
lxc_log_error("failed to destroy the network");
err = 0;
out:
if (lxc_setstate(name, STOPPED))
lxc_log_error("failed to set state %s", state2str(STOPPED));
lxc_unlink_nsgroup(name);
unlink(init);
free(init);
free(val);
lxc_put_lock(lock);
return err;
err_write:
close(fd);
err_state_failed:
err_child_failed:
err_pipe_read2:
err_pipe_write:
if (clone_flags & CLONE_NEWNET)
conf_destroy_network(name);
err_create_network:
err_pipe_read:
err_waitpid_failed:
if (lxc_setstate(name, ABORTING))
lxc_log_error("failed to set state %s", state2str(STOPPED));
kill(pid, SIGKILL);
err_fork_ns:
LXC_TTY_DEL_HANDLER(SIGQUIT);
LXC_TTY_DEL_HANDLER(SIGINT);
close(sv[0]);
close(sv[1]);
err:
goto out;
}

193
src/liblxc/state.c Normal file
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@ -0,0 +1,193 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/file.h>
#include <lxc.h>
#include <state.h>
#include <log.h>
static char *strstate[] = {
"STOPPED", "STARTING", "RUNNING", "STOPPING",
"ABORTING", "FREEZING", "FROZEN",
};
const char *state2str(lxc_state_t state)
{
if (state < STOPPED || state > MAX_STATE - 1)
return NULL;
return strstate[state];
}
lxc_state_t str2state(const char *state)
{
int i, len;
len = sizeof(strstate)/sizeof(strstate[0]);
for (i = 0; i < len; i++)
if (!strcmp(strstate[i], state))
return i;
return -1;
}
int lxc_setstate(const char *name, lxc_state_t state)
{
int fd, err;
char file[MAXPATHLEN];
const char *str = state2str(state);
if (!str)
return -1;
snprintf(file, MAXPATHLEN, LXCPATH "/%s/state", name);
fd = open(file, O_WRONLY);
if (fd < 0) {
lxc_log_syserror("failed to open %s file", file);
return -1;
}
if (flock(fd, LOCK_EX)) {
lxc_log_syserror("failed to take the lock to %s", file);
goto out;
}
if (ftruncate(fd, 0)) {
lxc_log_syserror("failed to truncate the file %s", file);
goto out;
}
if (write(fd, str, strlen(str)) < 0) {
lxc_log_syserror("failed to write state to %s", file);
goto out;
}
err = 0;
out:
close(fd);
/* let the event to be propagated, crappy but that works,
* otherwise the events will be folded into only one event,
* and I want to have them to be one by one in order
* to follow the different states of the container.
*/
usleep(200000);
return -err;
}
int mkstate(const char *name)
{
int fd;
char file[MAXPATHLEN];
snprintf(file, MAXPATHLEN, LXCPATH "/%s/state", name);
fd = creat(file, S_IRUSR|S_IWUSR);
if (fd < 0) {
lxc_log_syserror("failed to create file %s", file);
return -1;
}
close(fd);
return 0;
}
int rmstate(const char *name)
{
char file[MAXPATHLEN];
snprintf(file, MAXPATHLEN, LXCPATH "/%s/state", name);
unlink(file);
return 0;
}
lxc_state_t lxc_getstate(const char *name)
{
int fd, err;
char file[MAXPATHLEN];
snprintf(file, MAXPATHLEN, LXCPATH "/%s/state", name);
fd = open(file, O_RDONLY);
if (fd < 0) {
lxc_log_syserror("failed to open %s", file);
return -1;
}
if (flock(fd, LOCK_SH)) {
lxc_log_syserror("failed to take the lock to %s", file);
close(fd);
return -1;
}
err = read(fd, file, strlen(file));
if (err < 0) {
lxc_log_syserror("failed to read file %s", file);
close(fd);
return -1;
}
file[err] = '\0';
close(fd);
return str2state(file);
}
static int freezer_state(const char *name)
{
char freezer[MAXPATHLEN];
char status[MAXPATHLEN];
FILE *file;
int err;
snprintf(freezer, MAXPATHLEN,
LXCPATH "/%s/freezer.freeze", name);
file = fopen(freezer, "r");
if (file < 0) {
lxc_log_syserror("failed to open %s", freezer);
return -1;
}
err = fscanf(file, "%s", status);
fclose(file);
if (err == EOF) {
lxc_log_syserror("failed to read %s", freezer);
return -1;
}
return str2state(status);
}
lxc_state_t lxc_state(const char *name)
{
int state = freezer_state(name);
if (state != FROZEN && state != FREEZING)
state = lxc_getstate(name);
return state;
}

33
src/liblxc/state.h Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _state_h
#define _state_h
extern const char *state2str(lxc_state_t state);
extern lxc_state_t str2state(const char *state);
extern int mkstate(const char *name);
extern int rmstate(const char *name);
extern int lxc_setstate(const char *name, lxc_state_t state);
extern lxc_state_t lxc_getstate(const char *name);
#endif

95
src/liblxc/stop.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE
#include <fcntl.h>
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/file.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <log.h>
#include <lock.h>
int lxc_stop(const char *name)
{
char *init;
char val[MAXPIDLEN];
int fd, lock, ret = -1;
size_t pid;
lock = lxc_get_lock(name);
if (lock > 0) {
lxc_log_error("'%s' is not running", name);
lxc_put_lock(lock);
return -1;
}
if (lock < 0) {
lxc_log_error("failed to acquire the lock on '%s':%s",
name, strerror(-lock));
return -1;
}
asprintf(&init, LXCPATH "/%s/init", name);
fd = open(init, O_RDONLY);
if (fd < 0) {
lxc_log_syserror("failed to open init file for %s", name);
goto out_free;
}
if (read(fd, val, sizeof(val)) < 0) {
lxc_log_syserror("failed to read %s", init);
goto out_close;
}
pid = atoi(val);
if (kill(pid, SIGKILL)) {
lxc_log_syserror("failed to kill %zd", pid);
goto out_close;
}
if (unlink(init)) {
lxc_log_syserror("failed to unlink %s", init);
goto out_close;
}
ret = 0;
out_close:
close(fd);
out_free:
free(init);
return ret;
}

51
src/liblxc/utils.h Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _utils_h
#define _utils_h
#define LXC_TTY_HANDLER(s) \
static struct sigaction lxc_tty_sa_##s; \
static void tty_##s##_handler(int sig, siginfo_t *info, void *ctx) \
{ \
if (lxc_tty_sa_##s.sa_handler == SIG_DFL || \
lxc_tty_sa_##s.sa_handler == SIG_IGN) \
return; \
(*lxc_tty_sa_##s.sa_sigaction)(sig, info, ctx); \
}
#define LXC_TTY_ADD_HANDLER(s) \
do { \
struct sigaction sa; \
sa.sa_sigaction = tty_##s##_handler; \
sa.sa_flags = SA_SIGINFO; \
sigfillset(&sa.sa_mask); \
/* No error expected with sigaction. */ \
sigaction(s, &sa, &lxc_tty_sa_##s); \
} while (0)
#define LXC_TTY_DEL_HANDLER(s) \
do { \
sigaction(s, &lxc_tty_sa_##s, NULL); \
} while (0)
#endif

15
src/lxc/.cvsignore Normal file
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@ -0,0 +1,15 @@
.deps
Makefile
Makefile.in
lxc-console
lxc-create
lxc-destroy
lxc-execute
lxc-freeze
lxc-kill
lxc-monitor
lxc-start
lxc-state
lxc-stop
lxc-unfreeze
lxc-ps

61
src/lxc/Makefile.am Normal file
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INCLUDES= -I$(top_srcdir)/src/liblxc
bin_SCRIPTS = \
lxc-ps
bin_PROGRAMS = \
lxc-create \
lxc-destroy \
lxc-stop \
lxc-start \
lxc-execute \
lxc-monitor \
lxc-console \
lxc-state \
lxc-kill \
lxc-freeze \
lxc-unfreeze
lxc_create_SOURCES = lxc_create.c config.c config.h
lxc_create_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_destroy_SOURCES = lxc_destroy.c
lxc_destroy_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_start_SOURCES = lxc_start.c
lxc_start_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_stop_SOURCES = lxc_stop.c
lxc_stop_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_execute_SOURCES = lxc_execute.c config.c
lxc_execute_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_monitor_SOURCES = lxc_monitor.c
lxc_monitor_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_console_SOURCES = lxc_console.c
lxc_console_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_state_SOURCES = lxc_state.c
lxc_state_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_kill_SOURCES = lxc_kill.c
lxc_kill_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_freeze_SOURCES = lxc_freeze.c
lxc_freeze_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_unfreeze_SOURCES = lxc_unfreeze.c
lxc_unfreeze_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a

550
src/lxc/config.c Normal file
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@ -0,0 +1,550 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <list.h>
#include <conf.h>
#include <log.h>
typedef int (*file_cb)(char* buffer, void *data);
typedef int (*config_cb)(char *value, struct lxc_conf *lxc_conf);
static int config_mount(char *, struct lxc_conf *);
static int config_chroot(char *, struct lxc_conf *);
static int config_utsname(char *, struct lxc_conf *);
static int config_network_type(char *, struct lxc_conf *);
static int config_network_flags(char *, struct lxc_conf *);
static int config_network_link(char *, struct lxc_conf *);
static int config_network_name(char *, struct lxc_conf *);
static int config_network_hwaddr(char *, struct lxc_conf *);
static int config_network_ipv4(char *, struct lxc_conf *);
static int config_network_ipv6(char *, struct lxc_conf *);
struct config {
char *name;
int type;
config_cb cb;
};
enum { MOUNT, CHROOT, UTSNAME, NETTYPE, NETFLAGS, NETLINK,
NETNAME, NETHWADDR, NETIPV4, NETIPV6 };
struct config config[] = {
{ "lxc.mount", MOUNT, config_mount },
{ "lxc.chroot", CHROOT, config_chroot },
{ "lxc.utsname", UTSNAME, config_utsname },
{ "lxc.network.type", NETTYPE, config_network_type },
{ "lxc.network.flags", NETFLAGS, config_network_flags },
{ "lxc.network.link", NETLINK, config_network_link },
{ "lxc.network.name", NETNAME, config_network_name },
{ "lxc.network.hwaddr", NETHWADDR, config_network_hwaddr },
{ "lxc.network.ipv4", NETIPV4, config_network_ipv4 },
{ "lxc.network.ipv6", NETIPV6, config_network_ipv6 },
};
static const size_t config_size = sizeof(config)/sizeof(struct config);
static struct config *getconfig(const char *key)
{
int i;
for (i = 0; i < config_size; i++)
if (!strncmp(config[i].name, key,
strlen(config[i].name)))
return &config[i];
return NULL;
}
static int is_line_empty(char *line)
{
int i;
size_t len = strlen(line);
for (i = 0; i < len; i++)
if (line[i] != ' ' && line[i] != '\t' &&
line[i] != '\n' && line[i] != '\r' &&
line[i] != '\f' && line[i] != '\0')
return 0;
return 1;
}
static int char_left_gc(char *buffer, size_t len)
{
int i;
for (i = 0; i < len; i++) {
if (buffer[i] == ' ' ||
buffer[i] == '\t')
continue;
return i;
}
return 0;
}
static int char_right_gc(char *buffer, size_t len)
{
int i;
for (i = len - 1; i >= 0; i--) {
if (buffer[i] == ' ' ||
buffer[i] == '\t' ||
buffer[i] == '\n' ||
buffer[i] == '\0')
continue;
return i + 1;
}
return 0;
}
static int config_network_type(char *value, struct lxc_conf *lxc_conf)
{
struct list *networks = &lxc_conf->networks;
struct network *network;
struct netdev *netdev;
struct list *list;
struct list *ndlist;
network = malloc(sizeof(*network));
if (!network) {
lxc_log_syserror("failed to allocate memory");
return -1;
}
list_init(&network->netdev);
netdev = malloc(sizeof(*netdev));
if (!netdev) {
lxc_log_syserror("failed to allocate memory");
return -1;
}
list_init(&netdev->ipv4);
list_init(&netdev->ipv6);
list_init(&netdev->route4);
list_init(&netdev->route6);
ndlist = malloc(sizeof(*ndlist));
if (!ndlist) {
lxc_log_syserror("failed to allocate memory");
return -1;
}
ndlist->elem = netdev;
list_add(&network->netdev, ndlist);
list = malloc(sizeof(*list));
if (!list) {
lxc_log_syserror("failed to allocate memory");
return -1;
}
list_init(list);
list->elem = network;
list_add(networks, list);
if (!strcmp(value, "veth"))
network->type = VETH;
else if (!strcmp(value, "macvlan"))
network->type = MACVLAN;
else if (!strcmp(value, "phys"))
network->type = PHYS;
else {
lxc_log_error("invalid network type %s", value);
return -1;
}
return 0;
}
static int config_network_flags(char *value, struct lxc_conf *lxc_conf)
{
struct list *networks = &lxc_conf->networks;
struct network *network;
struct netdev *netdev;
if (list_empty(networks)) {
lxc_log_error("network is not created for '%s' option", value);
return -1;
}
network = list_first_elem(networks);
if (!network) {
lxc_log_error("no network defined for '%s' option", value);
return -1;
}
netdev = list_first_elem(&network->netdev);
netdev->flags |= IFF_UP;
return 0;
}
static int config_network_link(char *value, struct lxc_conf *lxc_conf)
{
struct list *networks = &lxc_conf->networks;
struct network *network;
struct netdev *netdev;
if (list_empty(networks)) {
lxc_log_error("network is not created for %s", value);
return -1;
}
network = list_first_elem(networks);
if (!network) {
lxc_log_error("no network defined for %s", value);
return -1;
}
if (strlen(value) > IFNAMSIZ) {
lxc_log_error("invalid interface name: %s", value);
return -1;
}
netdev = list_first_elem(&network->netdev);
netdev->ifname = strdup(value);
return 0;
}
static int config_network_name(char *value, struct lxc_conf *lxc_conf)
{
struct list *networks = &lxc_conf->networks;
struct network *network;
struct netdev *netdev;
if (list_empty(networks)) {
lxc_log_error("network is not created for %s", value);
return -1;
}
network = list_first_elem(networks);
if (!network) {
lxc_log_error("no network defined for %s", value);
return -1;
}
if (strlen(value) > IFNAMSIZ) {
lxc_log_error("invalid interface name: %s", value);
return -1;
}
netdev = list_first_elem(&network->netdev);
netdev->newname = strdup(value);
return 0;
}
static int config_network_hwaddr(char *value, struct lxc_conf *lxc_conf)
{
struct list *networks = &lxc_conf->networks;
struct network *network;
struct netdev *netdev;
if (list_empty(networks)) {
lxc_log_error("network is not created for %s", value);
return -1;
}
network = list_first_elem(networks);
if (!network) {
lxc_log_error("no network defined for %s", value);
return -1;
}
netdev = list_first_elem(&network->netdev);
netdev->hwaddr = strdup(value);
return 0;
}
static int config_network_ipv4(char *value, struct lxc_conf *lxc_conf)
{
struct list *networks = &lxc_conf->networks;
struct network *network;
struct inetdev *inetdev;
struct netdev *netdev;
struct list *list;
char *cursor, *slash, *addr = NULL, *bcast = NULL, *prefix = NULL;
if (list_empty(networks)) {
lxc_log_error("network is not created for '%s'", value);
return -1;
}
network = list_first_elem(networks);
if (!network) {
lxc_log_error("no network defined for '%s'", value);
return -1;
}
netdev = list_first_elem(&network->netdev);
if (!netdev) {
lxc_log_error("no netdev defined for '%s'", value);
}
inetdev = malloc(sizeof(*inetdev));
if (!inetdev) {
lxc_log_syserror("failed to allocate ipv4 address");
return -1;
}
memset(inetdev, 0, sizeof(*inetdev));
list = malloc(sizeof(*list));
if (!list) {
lxc_log_syserror("failed to allocate memory");
return -1;
}
list_init(list);
list->elem = inetdev;
addr = value;
cursor = strstr(addr, " ");
if (cursor) {
*cursor = '\0';
bcast = cursor + 1;
}
slash = strstr(addr, "/");
if (slash) {
*slash = '\0';
prefix = slash + 1;
}
if (!addr) {
lxc_log_error("no address specified");
return -1;
}
if (!inet_pton(AF_INET, addr, &inetdev->addr)) {
lxc_log_syserror("invalid ipv4 address: %s", value);
return -1;
}
if (bcast)
if (!inet_pton(AF_INET, bcast, &inetdev->bcast)) {
lxc_log_syserror("invalid ipv4 address: %s", value);
return -1;
}
if (prefix)
inetdev->prefix = atoi(prefix);
list_add(&netdev->ipv4, list);
return 0;
}
static int config_network_ipv6(char *value, struct lxc_conf *lxc_conf)
{
struct list *networks = &lxc_conf->networks;
struct network *network;
struct netdev *netdev;
struct inet6dev *inet6dev;
struct list *list;
char *slash;
char *netmask;
if (list_empty(networks)) {
lxc_log_error("network is not created for %s", value);
return -1;
}
network = list_first_elem(networks);
if (!network) {
lxc_log_error("no network defined for %s", value);
return -1;
}
inet6dev = malloc(sizeof(*inet6dev));
if (!inet6dev) {
lxc_log_syserror("failed to allocate ipv6 address");
return -1;
}
memset(inet6dev, 0, sizeof(*inet6dev));
list = malloc(sizeof(*list));
if (!list) {
lxc_log_syserror("failed to allocate memory");
return -1;
}
list_init(list);
list->elem = inet6dev;
slash = strstr(value, "/");
if (slash) {
*slash = '\0';
netmask = slash + 1;
inet6dev->prefix = atoi(netmask);
}
if (!inet_pton(AF_INET6, value, &inet6dev->addr)) {
lxc_log_syserror("invalid ipv6 address: %s", value);
return -1;
}
netdev = list_first_elem(&network->netdev);
list_add(&netdev->ipv6, list);
return 0;
}
static int config_mount(char *value, struct lxc_conf *lxc_conf)
{
if (strlen(value) >= MAXPATHLEN) {
lxc_log_error("%s path is too long", value);
return -1;
}
lxc_conf->fstab = strdup(value);
if (!lxc_conf->fstab) {
lxc_log_syserror("failed to duplicate string %s", value);
return -1;
}
return 0;
}
static int config_chroot(char *value, struct lxc_conf *lxc_conf)
{
if (strlen(value) >= MAXPATHLEN) {
lxc_log_error("%s path is too long", value);
return -1;
}
lxc_conf->chroot = strdup(value);
if (!lxc_conf->chroot) {
lxc_log_syserror("failed to duplicate string %s", value);
return -1;
}
return 0;
}
static int config_utsname(char *value, struct lxc_conf *lxc_conf)
{
struct utsname *utsname;
utsname = malloc(sizeof(*utsname));
if (!utsname) {
lxc_log_syserror("failed to allocate memory");
return -1;
}
if (strlen(value) >= sizeof(utsname->nodename)) {
lxc_log_error("node name '%s' is too long",
utsname->nodename);
return -1;
}
strcpy(utsname->nodename, value);
lxc_conf->utsname = utsname;
return 0;
}
static int parse_line(char *buffer, void *data)
{
struct config *config;
char *dot;
char *key;
char *value;
if (is_line_empty(buffer))
return 0;
buffer += char_left_gc(buffer, strlen(buffer));
if (buffer[0] == '#')
return 0;
dot = strstr(buffer, "=");
if (!dot) {
lxc_log_error("invalid configuration line: %s", buffer);
return -1;
}
*dot = '\0';
value = dot + 1;
key = buffer;
key[char_right_gc(key, strlen(key))] = '\0';
value += char_left_gc(value, strlen(value));
value[char_right_gc(value, strlen(value))] = '\0';
config = getconfig(key);
if (!config) {
lxc_log_error("unknow key %s", key);
return -1;
}
return config->cb(value, data);
}
static int file_for_each_line(const char *file, file_cb callback, void *data)
{
char buffer[MAXPATHLEN];
size_t len = sizeof(buffer);
FILE *f;
int err = -1;
f = fopen(file, "r");
if (!f) {
lxc_log_syserror("failed to open %s", file);
return -1;
}
while (fgets(buffer, len, f))
if (callback(buffer, data))
goto out;
err = 0;
out:
fclose(f);
return err;
}
int config_read(const char *file, struct lxc_conf *conf)
{
return file_for_each_line(file, parse_line, conf);
}
int config_init(struct lxc_conf *conf)
{
conf->chroot = NULL;
conf->fstab = NULL;
conf->utsname = NULL;
conf->cgroup = NULL;
list_init(&conf->networks);
return 0;
}

28
src/lxc/config.h Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
extern int config_init(struct lxc_conf *conf);
extern int config_read(const char *file, struct lxc_conf *conf);

33
src/lxc/lxc-priority.c Normal file
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@ -0,0 +1,33 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <lxc.h>
int main(int argc, char *argv[])
{
return 0;
}

17
src/lxc/lxc-ps.in Executable file
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@ -0,0 +1,17 @@
#!/bin/bash
LXCPATH=/var/lxc
if [ ! -r $LXCPATH ]; then
exit 0
fi
LXCS=$(ls $LXCPATH)
for i in $LXCS; do
if [ -d $LXCPATH/$i/nsgroup ]; then
echo "Container : $(basename $i)"
cat $LXCPATH/$i/nsgroup/tasks
fi
done

33
src/lxc/lxc_console.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <lxc.h>
int main(int argc, char *argv[])
{
return 0;
}

86
src/lxc/lxc_create.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <libgen.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <list.h>
#include <conf.h>
#include "config.h"
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
fprintf(stderr, "\t -f <confile> : path of the configuration file\n");
_exit(1);
}
int main(int argc, char *argv[])
{
const char *name = NULL, *file = NULL;
struct lxc_conf lxc_conf;
int opt;
while ((opt = getopt(argc, argv, "f:n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
case 'f':
file = optarg;
break;
}
}
if (!name || !file)
usage(argv[0]);
if (config_init(&lxc_conf)) {
fprintf(stderr, "failed to initialize the configuration\n");
return 1;
}
if (config_read(file, &lxc_conf)) {
fprintf(stderr, "invalid configuration file\n");
return 1;
}
if (lxc_create(name, &lxc_conf)) {
fprintf(stderr, "failed to create the container %s\n", name);
return 1;
}
return 0;
}

63
src/lxc/lxc_destroy.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/types.h>
#include <lxc.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name)
usage(argv[0]);
if (lxc_destroy(name)) {
fprintf(stderr, "failed to destroy %s\n", name);
return 1;
}
return 0;
}

68
src/lxc/lxc_execute.c Normal file
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@ -0,0 +1,68 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <libgen.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <lxc.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
char **args;
int nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name || !argv[optind] || !strlen(argv[optind]))
usage(argv[0]);
args = &argv[optind];
argc -= nbargs;
if (lxc_execute(name, argc, args, NULL, NULL)) {
fprintf(stderr, "failed to start %s\n", name);
return 1;
}
return 0;
}

64
src/lxc/lxc_freeze.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <libgen.h>
#include <string.h>
#include <lxc.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name)
usage(argv[0]);
if (lxc_freeze(name)) {
fprintf(stderr, "failed to freeze '%s'\n", name);
return 1;
}
return 0;
}

33
src/lxc/lxc_kill.c Normal file
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@ -0,0 +1,33 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <lxc.h>
int main(int argc, char *argv[])
{
return 0;
}

98
src/lxc/lxc_monitor.c Normal file
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@ -0,0 +1,98 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <libgen.h>
#include <unistd.h>
#include <sys/types.h>
#include <lxc.h>
#include <state.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int fds[2];
pid_t pid;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
}
if (!name)
usage(argv[0]);
if (pipe(fds)) {
perror("pipe");
return 1;
}
pid = fork();
if (pid < 0) {
perror("fork");
return 1;
}
if (!pid) {
close(fds[0]);
if (lxc_monitor(name, fds[1])) {
fprintf(stderr, "failed to monitor %s\n", name);
return 1;
}
return 0;
}
close(fds[1]);
for (;;) {
int err, state;
err = read(fds[0], &state, sizeof(state));
if (err < 0) {
perror("read");
return 1;
}
if (!err) {
printf("container has been destroyed\n");
return 0;
}
printf("container has changed the state to %d - %s\n",
state, state2str(state));
}
return 0;
}

74
src/lxc/lxc_start.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <libgen.h>
#include <unistd.h>
#include <string.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
char **args;
int nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name || !argv[optind] || !strlen(argv[optind]))
usage(argv[0]);
args = &argv[optind];
argc -= nbargs;
if (lxc_start(name, argc, args, NULL, NULL)) {
fprintf(stderr, "failed to start %s\n", name);
return 1;
}
return 0;
}

67
src/lxc/lxc_state.c Normal file
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@ -0,0 +1,67 @@
/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/types.h>
#include <lxc.h>
#include <state.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int state, nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name)
usage(argv[0]);
state = lxc_getstate(name);
if (state < 0) {
fprintf(stderr, "failed to freeze '%s'\n", name);
return 1;
}
printf("'%s' is %s\n", name, state2str(state));
return 0;
}

62
src/lxc/lxc_stop.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <libgen.h>
#include <unistd.h>
#include <sys/types.h>
#include <lxc.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name)
usage(argv[0]);
if (lxc_stop(name)) {
fprintf(stderr, "failed to stop %s\n", name);
return 1;
}
return 0;
}

63
src/lxc/lxc_unfreeze.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <libgen.h>
#include <sys/types.h>
#include <lxc.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name)
usage(argv[0]);
if (lxc_unfreeze(name)) {
fprintf(stderr, "failed to freeze '%s'\n", name);
return 1;
}
return 0;
}

19
test/.cvsignore Normal file
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@ -0,0 +1,19 @@
.deps
Makefile
Makefile.in
conf
dev
forward
ipv4_add
lxc_create
lxc_destroy
lxc_monitor
lxc_start
lxc_stop
lxc_state
macvlan
movedev
proxy
veth
confile
ipv6_add

91
test/Makefile.am Normal file
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@ -0,0 +1,91 @@
INCLUDES= -I$(top_srcdir)/src/liblxc
noinst_PROGRAMS = \
tst_list \
confile \
conf \
movedev \
dev \
forward \
proxy \
veth \
macvlan \
ipv4_add \
ipv6_add \
\
lxc_create \
lxc_destroy \
lxc_start \
lxc_stop \
lxc_monitor \
lxc_state
tst_list_SOURCES = tst_list.c
tst_list_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
confile_SOURCES = confile.c
confile_LDADD = \
$(top_builddir)/src/lxc/config.o \
$(top_builddir)/src/liblxc/liblxc.a
conf_SOURCES = conf.c
conf_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
movedev_SOURCES = movedev.c
movedev_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
dev_SOURCES = dev.c
dev_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
forward_SOURCES = forward.c
forward_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
proxy_SOURCES = proxy.c
proxy_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
veth_SOURCES = veth.c
veth_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
macvlan_SOURCES = macvlan.c
macvlan_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
ipv4_add_SOURCES = ipv4_add.c
ipv4_add_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
ipv6_add_SOURCES = ipv6_add.c
ipv6_add_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_create_SOURCES = lxc_create.c
lxc_create_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_destroy_SOURCES = lxc_destroy.c
lxc_destroy_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_start_SOURCES = lxc_start.c
lxc_start_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_stop_SOURCES = lxc_stop.c
lxc_stop_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_monitor_SOURCES = lxc_monitor.c
lxc_monitor_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a
lxc_state_SOURCES = lxc_state.c
lxc_state_LDADD = \
$(top_builddir)/src/liblxc/liblxc.a

102
test/conf.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <netinet/in.h>
#include <net/if.h>
#include <list.h>
#include <conf.h>
/*
* I want to setup a container with a veth attached on a bridge,
* and have them up
*/
int main(int argc, char *argv[])
{
/* struct network network = { */
/* .net = init_list(&network.net), */
/* .netdev = init_list(&network.netdev), */
/* }; */
/* struct veth veth = { */
/* .link = "veth1", */
/* .peer = "veth2", */
/* .bridge = "br0", */
/* }; */
/* struct net net = { */
/* .type = VETH, */
/* }; */
/* net.veth = veth; */
/* struct netdev lo = { */
/* .ifname = "lo", */
/* .flags = IFF_UP, */
/* .ipv4 = init_list(&lo.ipv4), */
/* .ipv6 = init_list(&lo.ipv6), */
/* }; */
/* struct netdev veth1 = { */
/* .ifname = "veth1", */
/* .flags = IFF_UP, */
/* .ipv4 = init_list(&veth1.ipv4), */
/* .ipv6 = init_list(&veth1.ipv6), */
/* }; */
/* struct netdev veth2 = { */
/* .ifname = "veth2", */
/* .flags = IFF_UP, */
/* .netns = 1, */
/* .ipv4 = init_list(&veth2.ipv4), */
/* .ipv6 = init_list(&veth2.ipv6), */
/* }; */
/* struct netdev br0 = { */
/* .ifname = "br0", */
/* .ipv4 = init_list(&br0.ipv4), */
/* .ipv6 = init_list(&br0.ipv6), */
/* }; */
/* list_add(&network.netdev, &lo.list); */
/* list_add(&network.netdev, &veth1.list); */
/* list_add(&network.netdev, &veth2.list); */
/* list_add(&network.netdev, &br0.list); */
/* list_add(&network.net, &net.list); */
/* struct lxc_conf lxc_conf = { */
/* .network = &network, */
/* .mounts = init_list(&lxc_conf.mounts), */
/* }; */
/* if (lxc_configure("foo", &lxc_conf)) { */
/* fprintf(stderr, "failed to configure\n"); */
/* return 1; */
/* } */
return 0;
}

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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <list.h>
#include <conf.h>
#include "../src/lxc/config.h"
static void usage(const char *cmd)
{
fprintf(stderr, "%s -n <name>\n", cmd);
_exit(1);
}
int main(int argc, char *argv[])
{
char *file = NULL, *name = NULL;
struct lxc_conf lxc_conf;
int opt;
while ((opt = getopt(argc, argv, "n:f:")) != -1) {
switch (opt) {
case 'f':
file = optarg;
break;
case 'n':
name = optarg;
break;
}
}
if (!file || !name)
usage(argv[0]);
if (config_init(&lxc_conf)) {
fprintf(stderr, "failed to initialize configuration structure\n");
return 1;
}
if (config_read(file, &lxc_conf)) {
fprintf(stderr, "failed to read configuration\n");
return 1;
}
if (lxc_create(name, &lxc_conf)) {
fprintf(stderr, "failed to create <%s>\n", name);
return 1;
}
return 0;
}

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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <libgen.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <network.h>
void usage(char *cmd)
{
fprintf(stderr, "%s -i <ifname> -d -f <up|down>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL, *flag = NULL;
int opt, destroy = 0, ret = -EINVAL;
while ((opt = getopt(argc, argv, "i:f:d")) != -1) {
switch (opt) {
case 'i':
ifname = optarg;
break;
case 'f':
flag = optarg;
break;
case 'd':
destroy = 1;
break;
}
}
if (!ifname || (!flag && !destroy)) {
usage(argv[0]);
return 1;
}
if (destroy)
ret = device_delete(ifname);
else if (!strcmp(flag, "up"))
ret = device_up(ifname);
else if (!strcmp(flag, "down"))
ret = device_down(ifname);
if (ret) {
fprintf(stderr, "failed to set %s: %s\n",
ifname, strerror(-ret));
return 1;
}
return 0;
}

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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <network.h>
void usage(const char *cmd)
{
fprintf(stderr, "%s -i <ifname> -f <on|off>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL, *flag = NULL;
int opt, ret, family = AF_INET;
while ((opt = getopt(argc, argv, "6i:f:")) != -1) {
switch (opt) {
case 'i':
ifname = optarg;
break;
case 'f':
flag = optarg;
break;
case '6':
family = AF_INET6;
break;
}
}
if (!ifname || !flag) {
usage(argv[0]);
return 1;
}
if (!strcmp(flag, "on"))
ret = ip_forward_on(ifname, family);
else if (!strcmp(flag, "off"))
ret = ip_forward_off(ifname, family);
else {
usage(argv[0]);
return 1;
}
if (ret) {
fprintf(stderr, "failed for %s: %s\n",
ifname, strerror(-ret));
return 1;
}
return 0;
}

66
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <network.h>
void usage(char *cmd)
{
fprintf(stderr, "%s -i <ifname> -a <ip>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL, *addr = NULL;
int opt, ret = -EINVAL;
while ((opt = getopt(argc, argv, "i:a:")) != -1) {
switch (opt) {
case 'a':
addr = optarg;
break;
case 'i':
ifname = optarg;
break;
}
}
if (!addr || !ifname) {
usage(argv[0]);
return 1;
}
ret = ip_addr_add(ifname, addr, 24, NULL);
if (ret) {
fprintf(stderr, "failed to set %s: %s\n",
ifname, strerror(-ret));
return 1;
}
return 0;
}

66
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <network.h>
void usage(char *cmd)
{
fprintf(stderr, "%s -i <ifname> -a <ip>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL, *addr = NULL;
int opt, ret = -EINVAL;
while ((opt = getopt(argc, argv, "i:a:")) != -1) {
switch (opt) {
case 'a':
addr = optarg;
break;
case 'i':
ifname = optarg;
break;
}
}
if (!addr || !ifname) {
usage(argv[0]);
return 1;
}
ret = ip6_addr_add(ifname, addr, 64, NULL);
if (ret) {
fprintf(stderr, "failed to set %s: %s\n",
ifname, strerror(-ret));
return 1;
}
return 0;
}

176
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <list.h>
#include <conf.h>
static void usage(const char *cmd)
{
fprintf(stderr, "%s -n <name>\n", cmd);
_exit(1);
}
int main(int argc, char *argv[])
{
const char *name = NULL;
int opt;
/* struct list mclist; */
/* struct list mclist2; */
/* struct list vethlist; */
/* struct list vethlist2; */
struct list phylist;
/* struct inetdev idev; */
/* struct list l1 = init_list(&l1); */
/* l1.elem = &idev; */
/* struct inetdev idev_2; */
/* struct list l2 = init_list(&l2); */
/* l2.elem = &idev_2; */
/* struct inet6dev idev6; */
/* struct list l3 = init_list(&l3); */
/* l3.elem = &idev6; */
/* struct inet6dev idev6_2; */
/* struct list l4 = init_list(&l4); */
/* l4.elem = idev6_2; */
/* inet_pton(AF_INET, "1.2.3.4", &idev.addr); */
/* inet_pton(AF_INET, "1.2.3.255", &idev.bcast); */
/* idev.prefix = 24; */
/* inet_pton(AF_INET, "4.3.2.1", &idev_2.addr); */
/* inet_pton(AF_INET, "4.3.2.255", &idev_2.bcast); */
/* inet_pton(AF_INET6, "2003:db8:1:0:214:5eff:fe0b:3596", &idev6.addr); */
/* inet_pton(AF_INET6, "2003:db8:1:0:214:1234:fe0b:3596", &idev6_2.addr); */
/* struct network veth = { */
/* .type = VETH, */
/* .netdev = { */
/* .flags = IFF_UP, */
/* .ifname = "br0", */
/* .newname = "eth0", */
/* .ipv4 = init_list(&veth.netdev.ipv4), */
/* .ipv6 = init_list(&veth.netdev.ipv6), */
/* }, */
/* }; */
/* vethlist.elem = &veth; */
/* list_add(&veth.netdev.ipv4, &l1); */
/* list_add(&veth.netdev.ipv4, &l2); */
/* list_add(&veth.netdev.ipv6, &l4); */
/* struct network veth2 = { */
/* .type = VETH, */
/* .netdev = { */
/* .flags = IFF_UP, */
/* .ifname = "br0", */
/* .newname = "eth1", */
/* .ipv4 = init_list(&veth2.netdev.ipv4), */
/* .ipv6 = init_list(&veth2.netdev.ipv6), */
/* }, */
/* }; */
/* list_add(&veth2.netdev.ipv6, &l3); */
/* vethlist2.elem = &veth2; */
/* struct network macvlan = { */
/* .type = MACVLAN, */
/* .netdev = { */
/* .flags = IFF_UP, */
/* .ifname = "eth0", */
/* .ipv4 = init_list(&macvlan.netdev.ipv4), */
/* .ipv6 = init_list(&macvlan.netdev.ipv6), */
/* }, */
/* }; */
/* mclist.elem = &macvlan; */
/* struct network macvlan2 = { */
/* .type = MACVLAN, */
/* .netdev = { */
/* .ifname = "eth0", */
/* .ipv4 = init_list(&macvlan2.netdev.ipv4), */
/* .ipv6 = init_list(&macvlan2.netdev.ipv6), */
/* }, */
/* }; */
/* mclist2.elem = &macvlan2; */
struct netdev nd = {
.ifname = "dummy0",
.ipv4 = init_list(&nd.ipv4),
.ipv6 = init_list(&nd.ipv6),
};
struct list ndlist = init_list(&ndlist);
ndlist.elem = &nd;
struct network phys = {
.type = PHYS,
.netdev = init_list(&phys.netdev),
};
phylist.elem = &phys;
struct lxc_conf lxc_conf = {
.networks = init_list(&lxc_conf.networks),
.chroot = "/mnt/iso",
};
list_add(&phys.netdev, &ndlist);
/* list_add(&lxc_conf.networks, &vethlist); */
/* list_add(&lxc_conf.networks, &mclist); */
list_add(&lxc_conf.networks, &phylist);
/* list_add(&lxc_conf.networks, &mclist); */
/* list_add(&lxc_conf.networks, &vethlist2); */
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
}
if (!name)
usage(argv[0]);
if (lxc_create(name, &lxc_conf)) {
fprintf(stderr, "failed to create the container %s\n", name);
return 1;
}
return 0;
}

55
test/lxc_destroy.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <lxc.h>
static void usage(const char *cmd)
{
fprintf(stderr, "%s -n <name>\n", cmd);
_exit(1);
}
int main(int argc, char *argv[])
{
const char *name = NULL;
int opt;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
}
if (!name)
usage(argv[0]);
if (lxc_destroy(name)) {
fprintf(stderr, "failed to destroy %s\n", name);
return 1;
}
return 0;
}

100
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <libgen.h>
#include <lxc.h>
#include <state.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int fds[2];
pid_t pid;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
}
if (!name)
usage(argv[0]);
if (pipe(fds)) {
perror("pipe");
return 1;
}
pid = fork();
if (pid < 0) {
perror("fork");
return 1;
}
if (!pid) {
close(fds[0]);
if (lxc_monitor(name, fds[1])) {
fprintf(stderr, "failed to monitor %s\n", name);
return 1;
}
return 0;
}
close(fds[1]);
for (;;) {
int err, state;
err = read(fds[0], &state, sizeof(state));
if (err < 0) {
perror("read");
return 1;
}
if (!err) {
printf("container has been destroyed\n");
return 0;
}
printf("container has changed the state to %d - %s\n",
state, state2str(state));
}
return 0;
}

84
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <libgen.h>
#include <sys/param.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <net/if.h>
#include <lxc.h>
#include <state.h>
#include <list.h>
#include <conf.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
static int prestart(const char *name, int argc, char *argv[], void *data)
{
printf("%s hook has been called with data %s\n",
__FUNCTION__, (char *)data);
return 0;
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
char **args;
int nbargs = 0;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
nbargs++;
}
if (!name || !argv[optind] || !strlen(argv[optind]))
usage(argv[0]);
args = &argv[optind];
argc -= nbargs;
if (lxc_start(name, argc, args, prestart, "hello world")) {
fprintf(stderr, "failed to start %s\n", name);
return 1;
}
return 0;
}

66
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <libgen.h>
#include <lxc.h>
#include <state.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
int state;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
}
if (!name)
usage(argv[0]);
state = lxc_state(name);
if (state < 0) {
fprintf(stderr, "failed to retrieve the state of %s\n", name);
return 1;
}
printf("container has the state to %d - %s\n",
state, state2str(state));
return 0;
}

59
test/lxc_stop.c Normal file
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <libgen.h>
#include <lxc.h>
void usage(char *cmd)
{
fprintf(stderr, "%s <command>\n", basename(cmd));
fprintf(stderr, "\t -n <name> : name of the container\n");
_exit(1);
}
int main(int argc, char *argv[])
{
char opt;
char *name = NULL;
while ((opt = getopt(argc, argv, "n:")) != -1) {
switch (opt) {
case 'n':
name = optarg;
break;
}
}
if (!name)
usage(argv[0]);
if (lxc_stop(name)) {
fprintf(stderr, "failed to stop %s\n", name);
return 1;
}
return 0;
}

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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <network.h>
void usage(const char *cmd)
{
fprintf(stderr, "%s -i <ifname> -p <ifname>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL, *peer = NULL;
int opt, ret = -EINVAL;
while ((opt = getopt(argc, argv, "i:p:")) != -1) {
switch (opt) {
case 'i':
ifname = optarg;
break;
case 'p':
peer = optarg;
break;
}
}
if (!ifname || !peer) {
usage(argv[0]);
return 1;
}
ret = macvlan_create(ifname, peer);
if (ret) {
fprintf(stderr, "failed to set %s/%s: %s\n",
ifname, peer, strerror(-ret));
return 1;
}
return 0;
}

64
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <network.h>
void usage(const char *cmd)
{
fprintf(stderr, "%s -i <ifname> -p <pid>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL;
pid_t pid = -1;
int opt;
while ((opt = getopt(argc, argv, "p:i:")) != -1) {
switch (opt) {
case 'p':
pid = atoi(optarg);
break;
case 'i':
ifname = optarg;
break;
}
}
if (!ifname || pid == -1) {
usage(argv[0]);
return 1;
}
if (device_move(ifname, pid)) {
fprintf(stderr, "failed to move %s\n", ifname);
return 1;
}
return 0;
}

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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <network.h>
void usage(const char *cmd)
{
fprintf(stderr, "%s -i <ifname> -f <on|off>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL, *flag = NULL;
int opt, ret, family = AF_INET;
while ((opt = getopt(argc, argv, "6i:f:")) != -1) {
switch (opt) {
case 'i':
ifname = optarg;
break;
case 'f':
flag = optarg;
break;
case '6':
family = AF_INET6;
break;
}
}
if (!ifname || !flag) {
usage(argv[0]);
return 1;
}
if (!strcmp(flag, "on"))
ret = neigh_proxy_on(ifname, family);
else if (!strcmp(flag, "off"))
ret = neigh_proxy_off(ifname, family);
else {
usage(argv[0]);
return 1;
}
if (ret) {
fprintf(stderr, "failed for %s: %s\n",
ifname, strerror(-ret));
return 1;
}
return 0;
}

66
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#include <stdio.h>
#include <string.h>
#include <list.h>
int main(int argc, char *argv[])
{
struct list *iterator;
struct list head = init_list(&head);
struct list l1 = init_list(&l1);
struct list l2 = init_list(&l2);
struct list l3 = init_list(&l3);
struct list l4 = init_list(&l4);
struct dummy {
int a;
};
struct dummy *elem;
struct dummy d1 = { .a = 1 };
struct dummy d2 = { .a = 2 };
struct dummy d3 = { .a = 3 };
struct dummy d4 = { .a = 4 };
if (!list_empty(&head)) {
fprintf(stderr, "expected empty list\n");
return -1;
}
l1.elem = &d1;
l2.elem = &d2;
l3.elem = &d3;
l4.elem = &d4;
list_add(&head, &l1);
list_add(&head, &l2);
list_add(&head, &l3);
list_add(&head, &l4);
list_for_each(iterator, &head) {
elem = iterator->elem;
printf("elem has %d\n", elem->a);
}
list_del(&l3);
list_for_each(iterator, &head) {
elem = iterator->elem;
printf("elem has %d\n", elem->a);
}
list_del(&l1);
list_del(&l2);
list_del(&l4);
if (!list_empty(&head)) {
fprintf(stderr, "expected empty list\n");
return -1;
}
list_for_each(iterator, &head) {
fprintf(stderr, "should not loop\n");
return -1;
}
return 0;
}

66
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/*
* lxc: linux Container library
*
* (C) Copyright IBM Corp. 2007, 2008
*
* Authors:
* Daniel Lezcano <dlezcano at fr.ibm.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <unistd.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <network.h>
void usage(const char *cmd)
{
fprintf(stderr, "%s -i <ifname> -p <ifname>\n", cmd);
}
int main(int argc, char *argv[])
{
char *ifname = NULL, *peer = NULL;
int opt, ret = -EINVAL;
while ((opt = getopt(argc, argv, "i:p:")) != -1) {
switch (opt) {
case 'i':
ifname = optarg;
break;
case 'p':
peer = optarg;
break;
}
}
if (!ifname || !peer) {
usage(argv[0]);
return 1;
}
ret = veth_create(ifname, peer);
if (ret) {
fprintf(stderr, "failed to set %s/%s: %s\n",
ifname, peer, strerror(-ret));
return 1;
}
return 0;
}