The whole point of <forward mode='open'/> is to supress libvirt from
adding any firewall rules for a network, and someone might want to
create a network with no IP address (i.e. they don't want the guests
to have connectivity to the host via this interface) and no firewall
rules (they don't want any, or they want to add their own). So there's
no reason to fail when a network has <forward mode='open'/> and also
has no IP address.
Kind-of-Resolves: https://gitlab.com/libvirt/libvirt/-/issues/588
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The original condition caused (after adding modify option)
possibly access to not allocated memory. For consistency added
new check for multiple same records.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/654
Signed-off-by: Adam Julis <ajulis@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The "modify" command allowed to replace an existing record, now
checks for the NULL string in the new value and throw error if
found.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/655
Signed-off-by: Adam Julis <ajulis@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This reverts commit cf934c87cca32149675020ea595712aad25978e6.
The matching logic is flawed and it would complicate support of
this command.
Signed-off-by: Adam Julis <ajulis@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The "modify" command allows to replace an existing record (its
text value). The primary key is the name of the record. If
duplicity or missing record detected, throw error.
Tests in networkxml2xmlupdatetest.c contain replacements of an
existing DNS-text record and failure due to non-existing record.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/639
Signed-off-by: Adam Julis <ajulis@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The "modify" command allows to replace an existing Srv record
(some of its elements respectively: port, priority and weight).
The primary key used to choose the modify record is the remaining
parameters, only one of them is required. Not using some of these
parameters may cause duplicate records and error message. This
logic is there because of the previous implementation (Add and
Delete options) in the function.
Tests in networkxml2xmlupdatetest.c contain replacements of an
existing DNS-Srv record and failure due to non-existing record.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/639
Signed-off-by: Adam Julis <ajulis@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The "modify" command allows you to replace an existing record
(its hostname, sub-elements). IP address acts as the primary key.
If it is not found, the attempt ends with an error message. If
the XML contains a duplicate address, it will select the last
one.
Tests in networkxml2xmlupdatetest.c contain replacements of an
existing DNS-Host record and failure due to non-existing record.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/639
Signed-off-by: Adam Julis <ajulis@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
There's no need to guard virBufferEscapeString() with a call to
NULL as the very first thing the function does is check all three
arguments for NULL.
This patch was generated using the following spatch:
@@
expression X, Y, E;
@@
- if (E)
virBufferEscapeString(X, Y, E);
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
This patch adds a new attribute "register" to the <domain> element. If
set to "yes", the DNS server created for the virtual network is
registered with systemd-resolved as a name server for the associated
domain. The names known to the dnsmasq process serving DNS and DHCP
requests for the virtual network will then be resolvable from the host
by appending the domain name to them.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'virXPathNodeSet' returns -1 only when 'ctxt' or 'xpath' are NULL or
when the 'xpath' string is invalid. Both are programming errors. It
doesn't make sense for the code to overwrite the error message for
anything supposedly more relevant.
The majority of calls to 'virXPathNodeSet' already didn't do this, so
this patch fixes the rest to prevent it from spreading again.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since commit 4af3cbafdd0e the function always returns 0, so it is
possible to make this function void and remove return value checks.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Alexandra Diupina <adiupina@astralinux.ru>
Rework the helper to use a GPtrArray structure to simplify callers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This patch makes it possible to manually specify which VFIO variant
driver to use for PCI hostdev device assignment, so that, e.g. you
could force use of a VFIO "variant" driver, with e.g.
<driver model='mlx5_vfio_pci'/>
or alternately to force use of the generic vfio-pci driver with
<driver model='vfio-pci'/>
when libvirt would have normally (after applying a subsequent patch)
found a "better match" for a device in the active kernel's
modules.alias file. (The main potential use of this manual override
would probably be to work around a bug in a new VFIO variant driver by
temporarily not using that driver).
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Now if a new attribute is added to <driver>, we only need to update
the formatting/parsing in one place.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The next step in consolidating parsing/formatting of the <driver>
element of these objects using a common struct and common code. This
eliminates the virNetworkForwardDriverNameType enum which is nearly
identical to virDeviceHostdevPCIDriverName (the only non-identical bit
was just because they'd gotten out of sync over time) and replaces its
uses with a virDeviceHostdevPCIDriverInfo (which is a struct that
contains a virDeviceHostdevPCIDriverName).
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The hostdev version of the <driver> subelement appears in four places:
* The domain XML in the <hostdev> and <interface type='hostdev'>
elements (that's 2)
* The network XML inside <forward> when the network is a pool of
SRIOV VFs
* the <networkport> XML, which is used to communicate between the
hypervisor driver and network driver.
In order to make the pending addition of a new attribute to <driver>
in all these cases simpler, this patch refactors the parsing of
<driver> in all four places to use virXMLProp*() and
virXMLFormatElement().
Making all of the different instances of the separate parse/format for
<driver> look nearly identical will make it easier to see that the
upcoming patch that converges all four to use a common
parser/formatter is a functional NOP.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Now that we have virXMLParseWithIndent() and
virXMLParseStringCtxtWithIndent(), we can use them directly and
drop calls to xmlKeepBlanksDefault().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use 'virXMLNodeGetSubelementList' instead of looping through XML nodes
and modernize the code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Error messages are exempt from the 80 columns rule. Move them
onto one line.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
This commit implements the newly defined Network Metadata Get and
Set APIs into the test driver.
It also adds a new testcase "networkmetadatatest" to test the APIs.
Signed-off-by: K Shiva Kiran <shiva_kr@riseup.net>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This patch adds new elements <title> and <description> to the Network XML.
- The <title> attribute holds a short title defined by the user and
cannot contain newlines.
- The <description> attribute holds any documentation that the user
wants to store.
- Schema definitions of <title> and <description> have been moved from
domaincommon.rng to basictypes.rng for use by network and future objects.
- Added Network XML parser logic for the above.
Signed-off-by: K Shiva Kiran <shiva_kr@riseup.net>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is a more concise approach and guarantees there is
no time window where the struct is uninitialized.
Generated using the following semantic patch:
@@
type T;
identifier X;
@@
- T X;
+ T X = { 0 };
... when exists
(
- memset(&X, 0, sizeof(X));
|
- memset(&X, 0, sizeof(T));
)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Claudio Fontana <cfontana@suse.de>
Use virXMLNodeGetSubelement(List) instead of the looped parser and
simplify the code.
Note that handling of the 'bootp' element now conforms to the schema
where we allow just one and the 'file' attribute is mandatory.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There's nothing to clean up in the 'host' local variable on error as
the function which fills it makes sure to fill it only on success. In
such case it's also directly assigned to the array thus the 'host'
variable is cleared.
Remove the 'cleanup' label and 'ret' variable as we can now directly
return -1 on error.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This also prevents a potential memleak when multiple elements would be
present.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
This also prevents a potential memleak when multiple elements would be
present.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Parse the 'prefix' field directly and adjust the the error message
format strings.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function extracts multiple attributes form a single element. Modify
the function to stop using multiple XPath lookups.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Replace virNetworkDefParseString/File by direct calls to
virNetworkDefParse.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Both callers can be easily converted to call virNetworkDefParseXML
directly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The generic helper also has helper code to validate the root element and
create an XPath context. Many places in the code duplicate code for
doing these operations.
Extend the helper to provide all arguments and fix all callers.
In many cases this patch refactors the passing of the 'validate'
field into a separate variable to avoid quirky looking arguments.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This change was generated using the following spatch:
@ rule1 @
expression a;
identifier f;
@@
<...
- f(*a);
... when != a;
- *a = NULL;
+ g_clear_pointer(a, f);
...>
@ rule2 @
expression a;
identifier f;
@@
<...
- f(a);
... when != a;
- a = NULL;
+ g_clear_pointer(&a, f);
...>
Then, I left some of the changes out, like tools/nss/ (which
doesn't link with glib) and put back a comment in
qemuBlockJobProcessEventCompletedActiveCommit() which coccinelle
decided to remove (I have no idea why).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There are couple of places where virTristateBoolTypeFromString()
is called. Well, the same result can be achieved by
virXMLPropTristateBool() and on fewer lines.
Note there are couple of places left untouched because those
don't care about error reporting and thus are shorter they way
they are now.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We don't need to propagate all public flags, only the information
about the presence of the validation one, which can differ from
function to function. This patch makes it easier and more
readable in case of a future additions of validation flags.
This change was suggested by Daniel.
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This patch also includes propagation of flags into the
virNetworkDefParse().
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use virAppendElement instead of virInsertElementsN to implement
VIR_APPEND_ELEMENT which allows us to remove error handling as the
only relevant errors were removed when switching to aborting memory
allocation functions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Having multiple addresses having same hostname is a common config either
to have IPv4 and IPv6 address for the same hostname or even for DNS
round robin. The validation in the network update code didn't allow
adding such entries despite the fact that it is possible to define a
network with them.
Don't check hostname duplicity when adding a DNS entry.
The update of the test case adds another entry for the 'pudding'
hostname which is added in one of the networkxml2xmlupdate test cases.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
So far, we have to places where we format <metadata/> into XMLs:
domain and network. Bot places share the same code. Move it into
a helper function and just call it from those places.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The width of `unsigned long` differs on 32 bit and 64 bit architectures.
There is no compelling reason why the maximum DHCP lease time should
depend on the architecture.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The new enum helpers use a set of flags to modify their behaviour, but
the declared set of flags is semantically confusing:
typedef enum {
VIR_XML_PROP_OPTIONAL = 0, /* Attribute may be absent */
VIR_XML_PROP_REQUIRED = 1 << 0, /* Attribute may not be absent */
Since VIR_XML_PROP_OPTIONAL is declared as 0 any other flag shadows it
and makes it impossible to detect. The functions are not able to detect
a semantic nonsense of VIR_XML_PROP_OPTIONAL | VIR_XML_PROP_REQUIRED and
it's a perfectly valid statement for the compilers.
In general having two flags to do the same boolean don't make sense and
the implementation doesn't fix any shortcomings either.
To prevent mistakes, rename VIR_XML_PROP_OPTIONAL to VIR_XML_PROP_NONE,
so that there's always an enum value used with the calls but it doesn't
imply that the flag makes the property optional when the actual value is
0.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Historically, we declared pointer type to our types:
typedef struct _virXXX virXXX;
typedef virXXX *virXXXPtr;
But usefulness of such declaration is questionable, at best.
Unfortunately, we can't drop every such declaration - we have to
carry some over, because they are part of public API (e.g.
virDomainPtr). But for internal types - we can do drop them and
use what every other C project uses 'virXXX *'.
This change was generated by a very ugly shell script that
generated sed script which was then called over each file in the
repository. For the shell script refer to the cover letter:
https://listman.redhat.com/archives/libvir-list/2021-March/msg00537.html
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Generated using the following spatch:
@@
expression path;
@@
- virFileMakePath(path)
+ g_mkdir_with_parents(path, 0777)
However, 14 occurrences were not replaced, e.g. in
virHostdevManagerNew(). I don't really understand why.
Fixed by hand afterwards.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'xmlBufferCreate' returns NULL only on allocation failure. Add a wrapper
which will call 'abort()' in such case in a centralised spot. It doesn't
make much sense to continue execution from here.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
