Co-authored-by: Sri Ramanujam <sramanujam@datto.com>
Signed-off-by: Matt Coleman <matt@datto.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Now, that ownership transfer of hypervSetEmbeddedProperty() is
clear, we can use automatic freeing of the hash table.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Matt Coleman <matt@datto.com>
Upon successful return hypervAddEmbeddedParam() transfers
ownership of @table argument to @params. But because it takes
only simple pointer (which hides this ownership transfer) it
doesn't clear the @table pointer.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Matt Coleman <matt@datto.com>
Now, that hypervInvokeMethod() clears the passed pointer we don't
need a special cleanup label ('params_cleanup') that handles
non-obvious ownership transfer.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Matt Coleman <matt@datto.com>
Upon invocation, hypervInvokeMethod() consumes passed @params
(the second argument) regardless whether success or failure is
released. However, it takes only simple pointer (which hides this
ownership transfer) and because of that it doesn't clear it.
Switch to double pointer and tweak the documentation.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Matt Coleman <matt@datto.com>
This header's main purpose was to work around bugs in older versions of
openwsman. Most of the files using it only needed wsman-api.h, which
they now include directly.
Signed-off-by: Matt Coleman <matt@datto.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Bug fixes and comments specific to older versions have been removed.
Signed-off-by: Matt Coleman <matt@datto.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Hyper-V version numbers are not compatible with the encoding in
virParseVersionString():
https://gitlab.com/libvirt/libvirt/-/blob/master/src/util/virutil.c#L246
For example, the Windows Server 2016 Hyper-V version is 10.0.14393: its
micro is over 14 times larger than the encoding allows.
This commit repacks the Hyper-V version number in order to preserve all
of the digits. The major and minor are concatenated (with minor zero-
padded to two digits) to form the repacked major value. This works
because Microsoft's major and minor versions numbers are unlikely to
exceed 99. The repacked minor value is derived from the digits in the
thousands, ten-thousands, and hundred-thousands places of Hyper-V's
micro. The repacked micro is derived from the digits in the ones, tens,
and hundreds places of Hyper-V's micro.
Co-authored-by: Sri Ramanujam <sramanujam@datto.com>
Signed-off-by: Matt Coleman <matt@datto.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This eliminates some duplicate code and simplifies the driver functions.
Co-authored-by: Sri Ramanujam <sramanujam@datto.com>
Signed-off-by: Matt Coleman <matt@datto.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Some CPU model names were too long for _virNodeInfo.model.
For example: Intel Xeon CPU E5-2620 v2 @ 2.10GHz
This commit removes the clock frequency suffix.
Signed-off-by: Matt Coleman <matt@datto.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The operands were reversed, producing an incorrect result.
Co-authored-by: Sri Ramanujam <sramanujam@datto.com>
Signed-off-by: Matt Coleman <matt@datto.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Introduce a vastly simpler VIR_INT64_STR_BUFLEN constant
which is large enough for all cases where we currently
use INT_BUFSIZE_BOUND. This eliminates most use of the
gnulib intprops.h header.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This parameter is now unused and can be removed entirely.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Moving their instance parameter to be the first one, and give consistent
ordering of other parameters across all functions. Ensure that the xml
options are passed into both functions in prep for future work.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Glib implementation follows the ISO C99 standard so it's safe to replace
the gnulib implementation.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The function now does not return an error so we can drop it fully.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Replace all occurrences of
if (VIR_STRDUP(a, b) < 0)
/* effectively dead code */
with:
a = g_strdup(b);
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Replace all the occurrences of
ignore_value(VIR_STRDUP(a, b));
with
a = g_strdup(b);
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use G_GNUC_UNUSED from GLib instead of ATTRIBUTE_UNUSED.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The usleep function was missing on older mingw versions, but we can rely
on it existing everywhere these days. It may only support times upto 1
second in duration though, so we'll prefer to use g_usleep instead.
The commandhelper program is not changed since that can't link to glib.
Fortunately it doesn't need to build on Windows platforms either.
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Many drivers had a comment that they did not validate the incoming
'flags' to virDomainGetXMLDesc() because they were relying on
virDomainDefFormat() to do it instead. This used to be the case
(at least since 461e0f1a and friends in 0.9.4 added unknown flag
checking in general), but regressed in commit 0ecd6851 (1.2.12),
when all of the drivers were changed to pass 'flags' through the
new helper virDomainDefFormatConvertXMLFlags(). Since this helper
silently ignores unknown flags, we need to implement flag checking
in each driver instead.
Annoyingly, this means that any new flag values added will silently
be ignored when targeting an older libvirt, rather than our usual
practice of loudly diagnosing an unsupported flag. Add comments
in domain_conf.[ch] to remind us to be extra vigilant about the
impact when adding flags (a new flag to add data is safe if the
older server omitting the requested data doesn't break things in
the newer client; a new flag to suppress data rather than enhancing
the existing VIR_DOMAIN_XML_SECURE may form a data leak or even a
security hole).
In the qemu driver, there are multiple callers all funnelling to
qemuDomainDefFormatBufInternal(); many of them already validated
flags (and often only a subset of the full set of possible flags),
but for ease of maintenance, we can also check flags at the common
helper function.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Now that the virAuthGet*Path API's generate all the error messages
we can remove them from the callers. This means that we will no
longer overwrite the error from the API.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Currently, the functions return a pointer to the
destination buffer on success or NULL on failure.
Not only does this kind of error handling look quite
alien in the context of libvirt, where most functions
return zero on success and a negative int on failure,
but it's also somewhat pointless because unless there's
been a failure the returned pointer will be the same
one passed in by the user, thus offering no additional
value.
Change the functions so that they return an int
instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
The way virStrncpy() is called here will never result in
buffer overflow, but it won't prevent or detect truncation
either, despite what the error message might suggest. Use
virStrcpyStatic(), which does all of the above, instead.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
HyperV driver can't function without a server being informed, so this flag
makes libvirt to check for a valid server before calling connectOpen.
Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Ensuring that we don't call the virDrvConnectOpen method with a NULL URI
means that the drivers can drop various checks for NULL URIs. These were
not needed anymore since the probe functionality was split
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Declare what URI schemes a driver supports in its virConnectDriver
struct. This allows us to skip trying to open the driver entirely
if the URI scheme doesn't match.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Ensure all enum cases are listed in switch statements. This improves
debug logging integration with openwsman.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Hyper-V uses its own specific memory management so no mapping is going to
be perfect. However, it is more correct to map Limit to max_memory (it
really is the upper limit of what the VM may potentially use) and keep
cur_balloon equal to total_memory.
The typical value returned from Hyper-V in Limit is 1 TiB, which is not
really going to work if interpreted as "startup memory" to be ballooned
away later.
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
The code was vulnerable to SQL injection. Likely not a security issue due to
WMI SQL and other constraints but still lame. For example:
virsh # dominfo \"
error: failed to get domain '"'
error: internal error: SOAP fault during enumeration: code 's:Sender', subcode
'n:CannotProcessFilter', reason 'The data source could not process the filter.
The filter might be missing or it might be invalid. Change the filter and try
the request again. ', detail 'The WS-Management service cannot process the
request. The WQL query is invalid. '
This commit fixes the Hyper-V driver by escaping all WMI SQL string parameters.
The same command with the fix:
virsh # dominfo \"
error: failed to get domain '"'
error: Domain not found: No domain with name "
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
"%s is not a Hyper-V server" is not a correct generalization of all possible
error conditions of hypervEnumAndPull. For example:
$ virsh --connect hyperv://localhost/?transport=http
Enter username for localhost [administrator]:
Enter administrator's password for localhost: <enters incorrect password>
error: failed to connect to the hypervisor
error: internal error: localhost is not a Hyper-V server
This commit removes the general virReportError from hypervInitConnection and
also the "Invalid query" virReportError from hypervSerializeEprParam, which
does not correctly describe the error either (virBufferCheckError has
already set a meaningful error message at that point).
The same scenario with the fix:
$ virsh --connect hyperv://localhost/?transport=http
Enter username for localhost [administrator]:
Enter administrator's password for localhost: <enters incorrect password>
error: failed to connect to the hypervisor
error: internal error: Transport error during enumeration: User, password or
similar was not accepted (26)
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Introduces support for virDomainSetMemory. This also serves an an
example for how to use the new method invocation API with a more
complicated method, this time including an EPR and embedded param.
This commit adds support for virDomainSendKey. It also serves as an
example of how to use the new method invocation APIs with a single
"simple" type parameter.
When hyperv code generator for WMI classes identifies common
properties, it needs to take into account array type as a distinct
type, i.e string != string[]. This is the case where v1 of the
Msvm_VirtualSystemSettingData has Notes property as string whereas v2
uses Notes[], therefore they have to be treated as different fields and
cannot be placed in the "common" struct.
This patch reworks the Hyper-V driver structs and the code generator
to provide seamless support for both Hyper-V 2008 and 2012 or newer.
This does not implement any new libvirt APIs, it just adapts existing
2008-only driver to also handle 2012 and newer by sharing as much
driver code as possible (currently it's all of it :-)). This is needed
to set the foundation before we can move forward with implementing the
rest of the driver APIs.
With the 2012 release, Microsoft introduced "v2" version of Msvm_* WMI
classes. Those are largely the same as "v1" (used in 2008) but have some
new properties as well as need different wsman request URIs. To
accomodate those differences, most of work went into the code generator
so that it's "aware" of possibility of multiple versions of the same WMI
class and produce C code accordingly.
To accomplish this the following changes were made:
* the abstract hypervObject struct's data member was changed to a union
that has "common", "v1" and "v2" members. Those are structs that
represent WMI classes that we get back from wsman response. The
"common" struct has members that are present in both "v1" and "v2"
which the driver API callbacks can use to read the data from in
version-independent manner (if version-specific member needs to be
accessed the driver can check priv->wmiVersion and read from "v1" or
"v2" as needed). Those structs are guaranteed to be memory aligned
by the code generator (see the align_property_members implementation
that takes care of that)
* the generator produces *_WmiInfo for each WMI class "family" that
holds an array of hypervWmiClassInfoPtr each providing information
as to which request URI to use for each "version" of given WMI class
as well as XmlSerializerInfo struct needed to unserilize WS-MAN
responsed into the data structs. The driver uses those to make proper
WS-MAN request depending on which version it's connected to.
* the generator no longer produces "helper" functions such as
hypervGetMsvmComputerSystemList as those were originally just simple
wrappers around hypervEnumAndPull, instead those were hand-written
now (to keep driver changes minimal). The reason is that we'll have
more code coming implementing missing libvirt APIs and surely code
patterns will emerge that would warrant more useful "utility" functions
like that.
* a hypervInitConnection was added to the driver which "detects"
Hyper-V version by testing simple wsman request using v2 then falling
back to v1, obviously if both fail, the we're erroring out.
To express how the above translates in code:
void
hypervImplementSomeLibvirtApi(virConnectPtr conn, ...)
{
hypervPrivate *priv = conn->privateData;
virBuffer query = VIR_BUFFER_INITIALIZER;
hypervWqlQuery wqlQuery = HYPERV_WQL_QUERY_INITIALIZER;
Msvm_ComputerSystem *list = NULL; /* typed hypervObject instance */
/* the WmiInfo struct has the data needed for wsman request and
* response handling for both v1 and v2 */
wqlQuery.info = Msvm_ComputerSystem_WmiInfo;
wqlQuery.query = &query;
virBufferAddLit(&query, "select * from Msvm_ComputerSystem");
if (hypervEnumAndPull(priv, &wqlQuery, (hypervObject **) &list) < 0) {
goto cleanup;
}
if (list == NULL) {
/* none found */
goto cleanup;
}
/* works with v1 and v2 */
char *vmName = list->data.common->Name;
/* access property that is in v2 only */
if (priv->wmiVersion == HYPERV_WMI_VERSION_V2)
char *foo = list->data.v2->V2Property;
else
char *foo = list->data.v1->V1Property;
cleanup:
hypervFreeObject(priv, (hypervObject *)list);
}
Allow to store driver specific data on a per-vcpu basis.
Move of the virDomainDef*Vcpus* functions was necessary as
virDomainXMLOptionPtr was declared below this block and I didn't want to
split the function headers.
