Introduce an LXC specific public API & library
This patch introduces support for LXC specific public APIs. In
common with what was done for QEMU, this creates a libvirt_lxc.so
library and libvirt/libvirt-lxc.h header file.
The actual APIs are
int virDomainLxcOpenNamespace(virDomainPtr domain,
int **fdlist,
unsigned int flags);
int virDomainLxcEnterNamespace(virDomainPtr domain,
unsigned int nfdlist,
int *fdlist,
unsigned int *noldfdlist,
int **oldfdlist,
unsigned int flags);
which provide a way to use the setns() system call to move the
calling process into the container's namespace. It is not
practical to write in a generically applicable manner. The
nearest that we could get to such an API would be an API which
allows to pass a command + argv to be executed inside a
container. Even if we had such a generic API, this LXC specific
API is still useful, because it allows the caller to maintain
the current process context, in particular any I/O streams they
have open.
NB the virDomainLxcEnterNamespace() API is special in that it
runs client side, so does not involve the internal driver API.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-12-21 13:15:19 +00:00
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#
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# Officially exported symbols, for which header
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# file definitions are installed in /usr/include/libvirt
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# from libvirt-lxc.h
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#
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# Versions here are *fixed* to match the libvirt version
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# at which the symbol was introduced. This ensures that
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# a new client app requiring symbol foo() can't accidentally
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# run with old libvirt-lxc.so not providing foo() - the global
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# soname version info can't enforce this since we never
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# change the soname
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#
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LIBVIRT_LXC_1.0.2 {
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global:
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virDomainLxcEnterNamespace;
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virDomainLxcOpenNamespace;
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};
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2013-03-12 17:24:01 +00:00
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LIBVIRT_LXC_1.0.4 {
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global:
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virDomainLxcEnterSecurityLabel;
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} LIBVIRT_LXC_1.0.2;
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2016-04-14 14:16:22 +00:00
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2016-06-13 17:34:48 +00:00
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LIBVIRT_LXC_2.0.0 {
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2016-04-14 14:16:22 +00:00
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global:
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virDomainLxcEnterCGroup;
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} LIBVIRT_LXC_1.0.4;
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