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When running sanitytest.py we should not rely on libvirt library
installed on the system. And since we generate a nice wrapper called
"run" that sets both PYTHON_PATH and LD_LIBRARY_PATH, we should just use
it rather than trying to duplicate it in the Makefile.
The previous change to the generator, changed too much - only
the functions are in 'virerror.c', the constants remained in
'virerror.h' which could not be renamed for API compat reasons.
Add a test case to sanity check the generated python bindings
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Without these two string changes in generator.py, the
virGetLastError wrapper does not get created in
/usr/share/pyshared/libvirt.py. Noticed when running
tests with virt-install.
Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
https://bugzilla.redhat.com/show_bug.cgi?id=895882
virDomainSnapshot.getDomain() and virDomainSnapshot.getConnect()
wrappers around virDomainSnapshotGet{Domain,Connect} were not supposed
to be ever implemented. The class should contain proper domain() and
connect() accessors that fetch python objects stored internally within
the class. While domain() was already provided, connect() was missing.
This patch adds connect() method to virDomainSnapshot class and
reimplements getDomain() and getConnect() methods as aliases to domain()
and connect() for backward compatibility.
Working with virTypedParameters in clients written in C is ugly and
requires all clients to duplicate the same code. This set of APIs makes
this code for manipulating with virTypedParameters integral part of
libvirt so that all clients may benefit from it.
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>
With our recent renames under src/util/* we forgot to adapt
python wrapper code generator. This results in some methods being
not exposed:
$ python examples/domain-events/events-python/event-test.py
Using uri:qemu:///system
Traceback (most recent call last):
File "examples/domain-events/events-python/event-test.py", line 585, in <module>
main()
File "examples/domain-events/events-python/event-test.py", line 543, in main
virEventLoopPureStart()
File "examples/domain-events/events-python/event-test.py", line 416, in virEventLoopPureStart
virEventLoopPureRegister()
File "examples/domain-events/events-python/event-test.py", line 397, in virEventLoopPureRegister
libvirt.virEventRegisterImpl(virEventAddHandleImpl,
AttributeError: 'module' object has no attribute 'virEventRegisterImpl'
Add code in the python binding to cope with the new APIs
virConnectRegisterCloseCallback and
virConnectUnregisterCloseCallback. Also demonstrate their
use in the python domain events demo
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Modified the places where virNodeGetInfo was used for the purpose
of obtaining the maximum node CPU number. Transparently falling
back to virNodeGetInfo in case of failure.
Wrote a utility function getPyNodeCPUCount for that purpose.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
The libvirt coding standard is to use 'function(...args...)'
instead of 'function (...args...)'. A non-trivial number of
places did not follow this rule and are fixed in this patch.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Added a method getCPUMap to virConnect.
It can be used as follows:
import libvirt
import sys
import os
conn = libvirt.openReadOnly(None)
if conn == None:
print 'Failed to open connection to the hypervisor'
sys.exit(1)
try:
(cpus, cpumap, online) = conn.getCPUMap(0)
except:
print 'Failed to extract the node cpu map information'
sys.exit(1)
print 'CPUs total %d, online %d' % (cpus, online)
print 'CPU map %s' % str(cpumap)
del conn
print "OK"
sys.exit(0)
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Adding a new API to obtain information about the
host node's present, online and offline CPUs.
int virNodeGetCPUMap(virConnectPtr conn,
unsigned char **cpumap,
unsigned int *online,
unsigned int flags);
The function will return the number of CPUs present on the host
or -1 on failure;
If cpumap is non-NULL virNodeGetCPUMap will allocate an array
containing a bit map representation of the online CPUs. It's
the callers responsibility to deallocate cpumap using free().
If online is non-NULL, the variable pointed to will contain
the number of online host node CPUs.
The variable flags has been added to support future extensions
and must be set to 0.
Extend the driver structure by nodeGetCPUMap entry in support of the
new API virNodeGetCPUMap.
Added implementation of virNodeGetCPUMap to libvirt.c
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This patch adds support for SUSPEND_DISK event; both lifecycle and
separated. The support is added for QEMU, machines are changed to
PMSUSPENDED, but as QEMU sends SHUTDOWN afterwards, the state changes
to shut-off. This and much more needs to be done in order for libvirt
to work with transient devices, wake-ups etc. This patch is not
aiming for that functionality.
libvirt_ulonglongUnwrap requires the integer type of python obj.
But libvirt_longlongUnwrap still could handle python obj of
Pyfloat_type which causes the float value to be rounded up
to an integer.
For example
>>> dom.setSchedulerParameters({'vcpu_quota': 0.88})
0
libvirt_longlongUnwrap treats 0.88 as a valid value 0
However
>>> dom.setSchedulerParameters({'cpu_shares': 1000.22})
libvirt_ulonglongUnwrap will throw out an error
"TypeError: an integer is required"
The patch make this consistent.
libvirt_virDomainGetVcpus: add error handling, return -1 instead of None
libvirt_virDomainPinVcpu and libvirt_virDomainPinVcpuFlags:
check the type of argument
make use of libvirt_boolUnwrap
Set bitmap according to these values which are contained in given
argument of vcpu tuple and turn off these bit corresponding to
missing vcpus in argument tuple
The original way ignored the error info from PyTuple_GetItem
if index is out of range.
"IndexError: tuple index out of range"
The error message will only be raised on next command in interactive mode.
The result is indeterminate for NULL argument to python
functions as follows. It's better to return negative value in
these situations.
PyObject_IsTrue will segfault if the argument is NULL
PyFloat_AsDouble(NULL) is -1.000000
PyLong_AsUnsignedLongLong(NULL) is 0.000000
* include/libvirt/libvirt.h.in: (Add macros for the param fields,
declare the APIs).
* src/driver.h: (New methods for the driver struct)
* src/libvirt.c: (Implement the public APIs)
* src/libvirt_public.syms: (Export the public symbols)
The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.
python/libvirt-override-api.xml: Document
python/libvirt-override-virConnect.py: Implementation for listAllSecrets.
python/libvirt-override.c: Implementation for the wrapper.
This is to list the secret objects. Supports to filter the secrets
by its storage location, and whether it's private or not.
include/libvirt/libvirt.h.in: Declare enum virConnectListAllSecretFlags
and virConnectListAllSecrets.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllSecrets)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.
python/libvirt-override-api.xml: Document
python/libvirt-override-virConnect.py:
* Implementation for listAllNWFilters.
python/libvirt-override.c: Implementation for the wrapper.
This is to list the network filter objects. No flags are supported
include/libvirt/libvirt.h.in: Declare enum virConnectListAllNWFilterFlags
and virConnectListAllNWFilters.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNWFilters)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.
python/libvirt-override-api.xml: Document
python/libvirt-override-virConnect.py:
* Implementation for listAllNodeDevices.
python/libvirt-override.c: Implementation for the wrapper.
This is to list the node device objects, supports to filter the results
by capability types.
include/libvirt/libvirt.h.in: Declare enum virConnectListAllNodeDeviceFlags
and virConnectListAllNodeDevices.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNodeDevices)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.
python/libvirt-override-api.xml: Document
python/libvirt-override-virConnect.py:
* New file, includes implementation of listAllInterfaces.
python/libvirt-override.c: Implementation for the wrapper.
This is to list the interface objects, supported filtering flags
are: active|inactive.
include/libvirt/libvirt.h.in: Declare enum virConnectListAllInterfaceFlags
and virConnectListAllInterfaces.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllInterfaces)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
The new_params variable must be initialized in case the
virDomainGetSchedulerParameters call fails and we hit the cleanup
section before actually allocating the new parameters.
Signed-off-by: Federico Simoncelli <fsimonce@redhat.com>
When deciding whether to provide an auth function callback
in openAuth(), credcb was checked against NULL, when it
really needs to be checked against Py_None
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
If an exception occurs in the python callback for openAuth()
the stack trace isn't seen by the apps, since this code is
called from libvirt context. To aid diagnostics, print the
error to stderr at least
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
If passing a 'credtype' parameter which was an empty list
to the python openAuth() API, the 'credtype' field in
the virConnectAuth struct would not be initialized. This
lead to a crash when later trying to free that field.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.
python/libvirt-override-api.xml: Document
python/libvirt-override-virConnect.py: Implement listAllNetworks.
python/libvirt-override.c: Implementation for the wrapper.
This is to list the network objects, supported filtering flags
are: active|inactive, persistent|transient, autostart|no-autostart.
include/libvirt/libvirt.h.in: Declare enum virConnectListAllNetworkFlags
and virConnectListAllNetworks.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNetworks)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.
python/libvirt-override-api.xml: Document
python/libvirt-override-virStoragePool.py:
* New file, includes implementation of listAllVolumes.
python/libvirt-override.c: Implementation for the wrapper.
Simply returns the storage volume objects. No supported filter
flags.
include/libvirt/libvirt.h.in: Declare the API
python/generator.py: Skip the function for generating. virStoragePool.py
will be added in later patch.
src/driver.h: virDrvStoragePoolListVolumesFlags
src/libvirt.c: Implementation for the API.
src/libvirt_public.syms: Export the symbol to public
The unused reason parameter of PM{Suspend,Wakeup} event callbacks was
completely ignored in lot of places and those events were not actually
working at all.
The implementation is done manually as the generator does not support
wrapping lists of C pointers into Python objects.
python/libvirt-override-api.xml: Document
python/libvirt-override-virConnect.py: Add listAllStoragePools
python/libvirt-override.c: Implementation for the wrapper.
This introduces a new API to list the storage pool objects,
4 groups of flags are provided to filter the returned pools:
* Active or not
* Autostarting or not
* Persistent or not
* And the pool type.
include/libvirt/libvirt.h.in: New enum virConnectListAllStoragePoolFlags;
Declare the API.
python/generator.py: Skip the generating
src/driver.h: (virDrvConnectListAllStoragePools)
src/libvirt.c: Implementation for the API.
src/libvirt_public.syms: Export the symbol.
A user reported this crash when using python bindings:
File "/home/nox/workspace/NOX/src/NOX/hooks.py", line 134, in trigger
hook.trigger(event)
File "/home/nox/workspace/NOX/src/NOX/hooks.py", line 33, in trigger
self.handlers[event]()
File "/home/nox/workspace/NOX/hooks/volatility.py", line 81, in memory_dump
for block in Memory(self.ctx):
File "/home/see/workspace/NOX/src/NOX/lib/libtools.py", line 179, in next
libvirt.VIR_MEMORY_PHYSICAL)
File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1759, in memoryPeek
ret = libvirtmod.virDomainMemoryPeek(self._o, start, size, flags)
SystemError: error return without exception set
In the python bindings, returning NULL makes python think an
exception was thrown, while returning the None object lets the
wrappers know that a libvirt error exists.
Reported by Nox DaFox, fix suggested by Dan Berrange.
* python/libvirt-override.c (libvirt_virDomainBlockPeek)
(libvirt_virDomainMemoryPeek): Return python's None object, so
wrapper knows to check libvirt error.
This patch updates libvirt's API to allow applications to inspect the
full list of security labels of a domain.
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
