5661 Commits

Author SHA1 Message Date
Peter Krempa
d8579b07c8 virBitmapParseSeparator: Remove separator parsing capability
Since the feature is not needed remove it and remove the function to
virBitmapParseInternal.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:25 +01:00
Peter Krempa
f3af9e36fb virBitmapSetBitExpand: Remove return value
The function can't fail at this point. Remove the return value.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:25 +01:00
Peter Krempa
7d48c3d2d6 virBitmapClearBitExpand: Remove return value
The function can't fail at this point. Remove the return value.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:25 +01:00
Peter Krempa
58fec2cef4 virBitmapUnion: Remove return value
The function can't fail at this point. Remove the return value.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:24 +01:00
Peter Krempa
ab88ace58d virBitmapExpand: Remove return value
There's nothing that can fail in the function. Remove the return value
and adjust callers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:24 +01:00
Peter Krempa
3c9b04cb12 util: bitmap: Unexport 'virBitmapParseSeparator'
The function isn't used besides tests. Since the separator parsing
capability is trivial we can keep it in place and just unexport it for
now.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:24 +01:00
Peter Krempa
babbfb5be9 virCgroupGetPercpuStats: Refactor cleanup
Use automatic memory freeing for the temporary bitmap and remove the
pointless 'cleanup' section.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:24 +01:00
Peter Krempa
8366175482 virHostCPUParseNode: Use automatic memory freeing for virBitmap
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:24 +01:00
Peter Krempa
20ddaa9797 virHostCPUHasValidSubcoreConfiguration: Refactor cleanup
Use automatic memory freeing for the temporary bitmap and remove the
pointless 'cleanup' section.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:24 +01:00
Peter Krempa
19228b6016 virHostCPUCountThreadSiblings: Refactor cleanup
Use automatic memory freeing for the temporary bitmap and remove the
pointless 'cleanup' section.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-10 16:36:24 +01:00
Laine Stump
31e08a365d util: call virNetDevGetPhysPortID() in less places
Whenever virPCIGetNetName() is called, it is either called with
physPortID = NULL, or with it set by the caller calling
virNetDevGetPhysPortID() soon before virPCIGetNetName(). The
physPortID is then used *only* in virPCIGetNetName().

Rather than replicating that same call to virNetDevGetPhysPortID() in
all the callers of virPCIGetNetName(), lets just have all those
callers send the NetDevName whose physPortID they want down to
virPCIGetNetName(), and let virPCIGetNetName() call
virNetDevGetPhysPortID().

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-12-06 13:04:28 -05:00
Laine Stump
71345f91d7 util: fix erroneous requirement for phys_port_id to get ifname of a VF
Commit 795e9e05c3 (libvirt-7.7.0) refactored the code in virpci.c and
virnetdev.c that gathered lists of the Virtual Functions (VF) of an
SRIOV Physical Function (PF) to simplify the code.

Unfortunately the simplification made the assumption, in the new
function virPCIGetVirtualFunctionsFull(), that a VF's netdev
interface name should only be retrieved if the PF had a valid
phys_port_id. That is an incorrect assumption - only a small handful
of (now previous-generation) Mellanox SRIOV cards actually use
phys_port_id (this is for an odd design where there are multiple
physical network ports on a single PCI address); all other SRIOV cards
(including new Mellanox cards) have a file in sysfs called
phys_port_id, but it can't be read, and so the pfPhysPortID string is
NULL.

The result of this logic error is that virtual networks that are a
pool of VFs to be used for macvtap connections will be unable to
start, giving an errror like this:

 VF 0 of SRIOV PF enp130s0f0 couldn't be added to the interface pool because it isn't bound to a network driver - possibly in use elsewhere

This error message is misinformed - the caller of
virNetDevGetVirtualFunctionsFull() only *thinks* that the VF isn't
bound to a network driver because it doesn't see a netdev name for the
VF in the list. But that's only because
virNetDevGetVirtualFunctionsFull() didn't even try to get the names!

We do need a way for virPCIGetVirtualFunctionsFull() to sometimes
retrieve the netdev names and sometimes not. One way of doing that
would be to send down the netdev name of the PF whenever we also want
to know the netdev names of the VFs, but send a NULL when we
don't. This can conveniently be done by just *replacing* pfPhysPortID
in the arglist with pfNetDevName - pfPhysPortID is determined by
simply calling virNetDevGetPhysPortID(pfNetDevName) so we can just
make that call down in virPCIGetVirtualFunctionsFull() (when needed).

This solves the regression introduced by commit 795e9e05c3, and also
nicely sets us up to (in a subsequent commit) move the call to
virNetDevGetPhysPortID() down one layer further to virPCIGetNetName(),
where it really belongs!

Resolves: https://bugzilla.redhat.com/2025432
Fixes: 795e9e05c3b6b9ef3abe6f6078a6373a136ec23b
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-12-06 13:04:28 -05:00
Michal Privoznik
362643a847 virnetdevveth: Do report error if creating veth fails
For some weird reason we are ignoring errors when creating veth
pair that netlink reports. This affects the LXC driver which
creates interfaces for container in
virLXCProcessSetupInterfaces(). If creating a veth pair fails, no
error is reported and the control jumps onto cleanup label where
some cryptic error message is reported instead (something about
inability to remove veth pair).

Let's report error that netlink returned - it's probably the most
accurate reason anyways.

Resolves: https://gitlab.com/libvirt/libvirt/-/issues/225
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2021-12-02 15:17:27 +01:00
Jiri Denemark
fb96b6a052 virthreadpool: Copy job name
Currently virThreadPoolNewFull relies on the caller to ensure the job
name outlives the thread pool. Which basically enforces static strings.
Let's drop this implicit requirement by making a copy of the job name.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-12-01 14:36:29 +01:00
Peter Krempa
47ee68e8cc util: virhash: Replace 'virHashDataFree' by 'GDestroyNotify'
We pass through to glib's hash table functions so we can also use glibs
function prototype definition.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2021-12-01 13:53:12 +01:00
Peter Krempa
19ddeaf607 util: virhash: Remove 'virHashFree'
The code was converted to stop using this function.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2021-12-01 13:53:12 +01:00
Peter Krempa
690efb960f Switch away from virHashFree
Use 'g_clear_pointer(&ptr, g_hash_table_unref)' instead.

In few instances it allows us to also remove explicit clearing of
pointers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2021-12-01 13:53:12 +01:00
Peter Krempa
7489b5e37e util: enum: Add helpers for converting virTristate* to a plain bool
The helpers will update the passed boolean if the tristate's value is
not _ABSENT.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-12-01 13:39:47 +01:00
Daniel P. Berrangé
193436c6a1 util: add a method for checking if swtpm is available
The QEMU domain capabilities code wants to quietly know whether swtpm is
available on the host.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
45f83e3a0b util: pull TPM capabilities probing out of main init method
Many methods merely want to know that the swtpm binaries have been
found, and don't care about probing for capabilities. Even when
starting a guest, the QEMU driver may not need the capabilities.

Skipping probing ensures the VM startup path is as fast as possible
when capabilities are not required. It also removes various error
scenarios from the main init method.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
63c42ba1d1 util: ensure all TPM global vars access is protected by lock
The virTPMEmulatorInit method updates various global variables
and holds a lock while doing so. Other methods which access
these variables, however, don't reliably hold locks over all
of their accesses.

Since virTPMEmulatorInit is no longer exported, we can push
the locking up into all the callers and achieve proper safety
for concurrent usage.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
c032786e08 util: don't export virTPMEmulatorInit method
Every other exported API from virtpm.h will internally call
virTPMEmulatorInit, so there is no reason for this initializer
to be exported on its own.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
ac674429c3 util: replace TPM global variables with a struct array
The virTPMEmulatorInit function defines a struct that gets filled with
pointers to global variables. It will be simpler to just use the struct
for the global variables directly.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
e715648e8b util: refactor TPM helper methods to reduce duplicationm
The TPM helper methods for querying the binary path and capabilities
have the same patterns across all swtpm binaries. This code duplication
can be reduced by introducing helper methods.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
7475907d1a util: rename typedef for parsing swtpm capabilities
Best practice is to have all types use a naming convention based on the
filename.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
3d8ee06b6e util: use consistent naming for swtpm global variables
Use a '_path' suffix on all vars which are paths.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-12-01 12:14:03 +00:00
Daniel P. Berrangé
b719d82f4a util: canonicalize 'arm64' arch to 'aarch64'
macOS on Apple silicon reports 'arm64' as the architecture from uname,
which we need to canonicalize to VIR_ARCH_AARCH64 / 'aarch64'.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-11-30 10:51:33 +00:00
Daniel P. Berrangé
e18fff6c85 util: fix cache invalidation of swtpm capabilities
The check for whether the swtpm binary was modified is checking pointers
to the mtime field in two distinct structs, so will always compare
different. This resulted in re-probing swtpm capabilities every time,
as many as 20 times for a single VM launch.

Fixes:

  commit 01cf7a1bb9f1da27ad8bcbaa82c4f7a948c6a793
  Author: Stefan Berger <stefanb@us.ibm.com>
  Date:   Thu Jul 25 14:22:04 2019 -0400

    tpm: Check whether previously found executables were updated

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-11-24 11:31:16 +00:00
Xu Chao
6fac961b08 util: virExec may blocked by reading pipe if grandchild prematurely exit
When VIR_EXEC_DAEMON is set, if virPidFileAcquirePath/virSetInherit failed,
then pipesync[0] can not be closed when granchild process exit, because
pipesync[1] still opened in child process. and then saferead in child
process may blocked forever, and left grandchild process in defunct state.

Signed-off-by: Xu Chao <xu.chao6@zte.com.cn>
Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-11-24 11:59:50 +01:00
Peter Krempa
c1a85daf99 util: xml: Remove virXMLPropStringLimit and virXPathStringLimit
The functions have very difficult semantics where callers are not able
to tell whether the property is missing or failed the length check. Only
the latter produces errors.

Since usage of the functions was phased out, remove them completely to
avoid further broken code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-24 09:20:39 +01:00
Peter Krempa
f7ff8556ad virSecurityLabelDef: Declare 'type' as 'virDomainSeclabelType'
Use the appropriate enum type instead of an int and fix the XML parser
and one missing fully populated switch.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-24 09:20:38 +01:00
Peter Krempa
396ce0b568 util: seclabel: Define autoptr cleanup func for virSecurityLabelDef and virSecurityDeviceLabelDef
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-24 09:20:38 +01:00
Martin Kletzander
edd1fd8ca9 Use virProcessGetStat
This eliminates one incorrect parsing implementation which relied on the
command field not having a closing bracket.  This possibility is already
tested against in the virProcessGetStat() tests.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-23 16:43:08 +01:00
Martin Kletzander
e370d4056b util: Add virProcessGetStat
This reads and separates all fields from /proc/<pid>/stat or
/proc/<pid>/task/<tid>/stat as there are easy mistakes to be done in the
implementation.  Some tests are added to show it works correctly.  No number
parsing is done as it would be unused for most of the fields most, if not all,
of the time.  No struct is used for the result as the length can vary (new
fields can be added in the future).

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-23 16:43:08 +01:00
Martin Kletzander
00c0ba5de3 util: Check for pkttyagent availability properly
It does not need a tty to work, it opens its controlling terminal for user
interaction and with this patch even crazy things like this work:

  echo 'list --name' | virsh -q >/dev/null

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-23 12:51:09 +01:00
Martin Kletzander
32eae6fd31 util: Report errors in all code paths in virPolkitAgentCreate
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-23 12:51:09 +01:00
Martin Kletzander
32d100ca5c util: Add virPolkitAgentAvailable
With this function we can decide whether to try running the polkit text agent
only if it is available, removing a potential needless error saying that the
agent binary does not exist, which is useful especially when running the agent
before knowing whether it is going to be needed.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-23 12:51:09 +01:00
Martin Kletzander
e4ebe391d7 util: Tiny reword fix in comment
Automatic "Ptr " -> " *" also wreaked havoc in comments.  Fix it and while at it
reword the sentence so it is clear that the object is newly allocated.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-23 12:51:09 +01:00
Roman Bogorodskiy
c07cf0a686 meson: improve CPU affinity routines check
Recently, FreeBSD has got sched_get/setaffinity(3) implementations and
the sched.h header as well [1]. To make these routines visible,
users have to define _WITH_CPU_SET_T.

This breaks current detection. Specifically, meson sees the
sched_getaffinity() symbol and defines WITH_SCHED_GETAFFINITY. This
define unlocks Linux implementation of virProcessSetAffinity() and other
functions, which fails to build on FreeBSD because cpu_set_t is not
visible as _WITH_CPU_SET_T is not defined.

For now, change detection to the following:

 - Instead of checking sched_getaffinity(), check if 'cpu_set_t' is
   available through sched.h
 - Explicitly check the sched.h header instead of assuming its presence
   if WITH_SCHED_SETSCHEDULER is defined

1:
https://cgit.freebsd.org/src/commit/?id=43736b71dd051212d5c55be9fa21c45993017fbb
https://cgit.freebsd.org/src/commit/?id=160b4b922b6021848b6b48afc894d16b879b7af2
https://cgit.freebsd.org/src/commit/?id=90fa9705d5cd29cf11c5dc7319299788dec2546a

Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2021-11-23 15:11:00 +04:00
Pavel Hrdina
23b99623ee util: fix various ATTRIBUTE_NONNULL calls
Git bisect took me to commit where incorrect usage of ATTRIBUTE_NONNULL
was introduced and caused coverity scan to fail. This patch fixes the
issue where the index starts from 1 and not 0 and two other different
cases.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-23 09:59:00 +01:00
Michal Privoznik
784e9e2b62 lib: Drop needless one line labels
In some cases we have a label that contains nothing but a return
statement. The amount of such labels rises as we use automagic
cleanup. Anyway, such labels are pointless and can be dropped.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2021-11-22 12:39:59 +01:00
Peter Krempa
12f48c53f5 util: json: Remove virJSONValueObjectCreate(VArgs)
The functions were obsoleted by virJSONValueObjectAdd(VArgs)

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-17 12:04:11 +01:00
Peter Krempa
bd74e0d995 virJSONValueObjectAddVArgs: Allocate new object if passed pointer is NULL
Until now the code would crash if virJSONValueObjectAdd is used without
a valid object. Adding the functionality of allocating it if it's NULL
will allow us to replace all uses of virJSONValueObjectCreate with this
single function.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-17 12:04:11 +01:00
Peter Krempa
34fc5832e3 virJSONValueObjectAddVArgs: Take double pointer
Pass in the double pointer from the wrappers directly to
virJSONValueObjectAddVArgs, which will allow us to directly allocate the
new objects inside the function.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-17 12:04:11 +01:00
Peter Krempa
f28b1cf2c9 virJSONValueObjectAdd: Convert @obj argument to double pointer
Change the first argument to a double pointer so that later the function
can be unified with virJSONValueObjectCreate and fix all callers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2021-11-17 12:04:10 +01:00
Michal Privoznik
7c2a4e84b7 Prefer g_auto(GStrv) over g_strfreev()
There are a few cases where a string list is freed by an explicit
call of g_strfreev(), but the same result can be achieved by
g_atuo(GStrv).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
2021-11-11 16:16:17 +01:00
Tim Wiederhake
9dcfd7030a virSCSIVHostOpenVhostSCSI: Cleanup
Remove unnecessary label, goto, and closing of not-open file descriptor.

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-11-08 14:32:32 +01:00
Tim Wiederhake
ddf48de4c8 virBufferAddBuffer: Cleanup
Remove unnecessary label and goto.

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-11-08 14:32:32 +01:00
Tim Wiederhake
cb79953b88 virhostcpu: Add virHostCPUGetCPUID
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-11-05 17:12:25 +01:00
Jiri Denemark
185b06ba35 util: Avoid null pointer dereference when setting QoS on OVS
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2021-11-05 09:25:55 +01:00