because when it is disabled, the user gets no indication if they
touch a file that would normally require a rebuild. Automake
1.11 changed things so that AM_MAINTAINER_MODE([enable]) will set
the mode to enabled by default; but RHEL 5 still uses automake 1.9,
where AM_MAINTAINER_MODE did not recognize an argument, and
therefore disables maintainer mode by default. Having the default
be different according to which version of automake built the
project is annoying, and I _have_ been bitten on RHEL 5 rebuilds
where the default disabled mode led to silently incorrect builds.
The automake manual admits that being able to disable maintainer
mode still makes sense for projects that still store generated
files from the autotools in version control; but we have dropped
that for several years now. As such, it's finally time to just
ditch the whole idea of maintainer mode, and unconditionally
rebuild autotools files if a dependency changes, without offering
a configure option to disable that mode.
Remove use of virConnectPtr from all remaining nwfilter code
The virConnectPtr is passed around loads of nwfilter code in
order to provide it as a parameter to the callback registered
by the virt drivers. None of the virt drivers use this param
though, so it serves no purpose.
Avoiding the need to pass a virConnectPtr means that the
nwfilterStateReload method no longer needs to open a bogus
QEMU driver connection. This addresses a race condition that
can lead to a crash on startup.
The nwfilter driver starts before the QEMU driver and registers
some callbacks with DBus to detect firewalld reload. If the
firewalld reload happens while the QEMU driver is still starting
up though, the nwfilterStateReload method will open a connection
to the partially initialized QEMU driver and cause a crash.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Don't pass virConnectPtr in nwfilter 'struct domUpdateCBStruct'
The nwfilter driver only needs a reference to its private
state object, not a full virConnectPtr. Update the domUpdateCBStruct
struct to have a 'void *opaque' field instead of a virConnectPtr.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Claudio Bley [Mon, 7 Oct 2013 10:13:00 +0000 (12:13 +0200)]
Adjust legacy max payload size to account for header information
Commit 27e81517a87 set the payload size to 256 KB, which is
actually the max packet size, including the size of the header.
Reduce this by VIR_NET_MESSAGE_HEADER_MAX (24) and set
VIR_NET_MESSAGE_LEGACY_PAYLOAD_MAX to 262120, which was the original
value before increasing the limit in commit eb635de1fed.
Ryota Ozaki [Sat, 5 Oct 2013 05:56:37 +0000 (14:56 +0900)]
nodeinfo: make freebsdNodeGetCPUCount work on Mac OS X
This fixes the following error:
error : nodeGetInfo:933 : this function is not supported
by the connection driver: node info not implemented on this platform
The freebsdNodeGetCPUCount was renamed to appleFreebsdNodeGetCPUCount
in order to make more visible the fact, that it works on Mac OS X too.
Mac OS X can use sysctlbyname as same as FreeBSD to get the CPU
frequency. However, the MIB style name is different from FreeBSD's.
And the unit of the return frequency is also different.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Ryota Ozaki [Sat, 5 Oct 2013 05:56:36 +0000 (14:56 +0900)]
rpc: fix getsockopt for LOCAL_PEERCRED on Mac OS X
This fixes the following error:
error : virGetUserEnt:703 : Failed to find user record for uid '32654'
'32654' (it's random and varies) comes from getsockopt with
LOCAL_PEERCRED option. getsockopt returns w/o error but seems
to not set any value to the buffer for uid.
For Mac OS X, LOCAL_PEERCRED has to be used with SOL_LOCAL level.
With SOL_LOCAL, getsockopt returns a correct uid.
Note that SOL_LOCAL can be found in
/System/Library/Frameworks/Kernel.framework/Versions/A/Headers/sys/un.h.
Signed-off-by: Ryota Ozaki <ozaki.ryota@gmail.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Eric Blake [Fri, 4 Oct 2013 23:46:43 +0000 (17:46 -0600)]
build: fix build on 32-bit platforms
qemumonitorjsontest.c: In function 'testQemuMonitorJSONqemuMonitorJSONGetBalloonInfo':
qemumonitorjsontest.c:1134: warning: integer constant is too large for 'long' type
* tests/qemumonitorjsontest.c
(testQemuMonitorJSONqemuMonitorJSONGetBalloonInfo)
(testQemuMonitorJSONqemuMonitorJSONGetBlockStatsInfo): Use correct
type.
Eric Blake [Fri, 4 Oct 2013 23:25:13 +0000 (17:25 -0600)]
build: fix build on RHEL 5
On RHEL 5, compilation fails with:
storage/storage_backend.c: In function 'createRawFile':
storage/storage_backend.c:339: warning: implicit declaration of function 'fallocate'
storage/storage_backend.c:339: warning: nested extern declaration of 'fallocate' [-Wnested-externs]
Huh? It turns out that in kernels that old, fallocate() is not
implemented (config.h is correct), but <linux/fs.h> defines
HAVE_FALLOCATE as an empty witness macro for a completely
different purpose. Since storage_backend.c is including
<linux/fs.h> on RHEL 5, we are hosed by the kernel definition.
Newer kernels no longer pollute the namespace, and it's fairly
easy to convert to an expression that works with both the old
kernel witness and the new-style config.h (undefined or 1).
Eric Blake [Fri, 27 Sep 2013 23:09:20 +0000 (17:09 -0600)]
build: fix build --without-remote
I tried to test ./configure --without-lxc --without-remote.
First, the build failed with some odd errors, such as an
inability to build xen, or link failures for virNetTLSInit.
But when you think about it, once there is no remote code,
all of libvirtd is useless, any stateful driver that depends
on libvirtd is also not worth compiling, and any libraries
used only by RPC code are not needed. So I patched
configure.ac to make for some saner defaults when an
explicit disable is attempted. Similarly, since we have
migrated virnetdevbridge into generic code, the workaround
for Linux kernel stupidity must not depend on stateful
drivers being in use.
Then there's 'make check' that needs segregation.
Wow - quite a bit of cleanup to make --without-remote useful :)
* configure.ac: Let --without-remote toggle defaults on stateful
drivers and other libraries. Pick up Linux kernel workarounds
even when qemu and lxc are not being compiled.
* tests/Makefile.am (test_programs): Factor out programs that
require remote.
* src/libvirt_private.syms (rpc/virnet*.h): Move...
* src/libvirt_remote.syms: ...into new file.
* src/Makefile.am (SYM_FILES): Ship new syms file.
storage: fix file allocation behavior in file cloning
Fixed the safezero call for allocating the rest of the file after cloning
an existing volume; it used to always use a zero offset, causing it to
only allocate the beginning of the file.
Also modified file creation to try to use fallocate(2) to pre-allocate
disk space before copying any data to make sure it fails early on if disk
is full and makes sure we can skip zero blocks when copying file contents.
If fallocate isn't available we will zero out the rest of the file after
cloning and only use sparse cloning if client requested a lower allocation
than the input volume's capacity.
My previous commit 7dc1d4ab was supposed to change safezero to allocate
1 megabyte at maximum, but had the logic reversed and will allocate 1
megabyte at minimum (and a lot more at maximum.)
virfile: safezero: fall back to writing block by block if mmap fails
mmap can fail on 32-bit systems if we're trying to zero out a lot of data.
Fall back to using block-by-block writing in that case. While we could map
smaller blocks it's unlikely that this code is used a lot and its easier to
just fall back to one of the existing methods.
Also modified the block-by-block zeroing to not allocate a megabyte of
zeroes if we're writing less than that.
Again stolen from qemu_driver.c, but dropping all the unneeded bits.
This aims to copy all the current qemu validation checks since that's
the most commonly used real driver, but some of the checks are
completely artificial in the test driver.
This only supports creation of internal snapshots for initial
simplicity.
but the fix only worked for <interface type='hostdev'>, *not* for
<interface type='network'> where the network itself was a pool of
hostdevs.
The symptom in both cases was this error message:
internal error: Unable to determine device index for network device
In both cases the cause was lack of proper handling for netdevs
(<interface>) of type='hostdev' when scanning the netdev list looking
for alias names in qemuAssignDeviceNetAlias() - those that aren't
type='hostdev' have an alias of the form "net%d", while those that are
hostdev use "hostdev%d". This special handling was completely lacking
prior to the fix for Bug 827519 which was:
When searching for the highest alias index, libvirt looks at the alias
for each netdev and if it is type='hostdev' it ignores the entry. If
the type is not hostdev, then it expects the "net%d" form; if it
doesn't find that, it fails and logs the above error message.
That fix works except in the case of <interface type='network'> where
the network uses hostdev (i.e. the network is a pool of VFs to be
assigned to the guests via PCI passthrough). In this case, the check
for type='hostdev' would fail because it was done as:
def->net[i]->type == VIR_DOMAIN_NET_TYPE_HOSTDEV
(which compares what was written in the config) when it actually
should have been:
(which compares the type of netdev that was actually allocated from
the network at runtime).
Of course the latter wouldn't be of any use if the netdevs of
type='network' hadn't already acquired their actual network connection
yet, but manual examination of the code showed that this is never the
case.
While looking through qemu_command.c, two other places were found to
directly compare the net[i]->type field rather than getting actualType:
* qemuAssignDeviceAliases() - in this case, the incorrect comparison
would cause us to create a "net%d" alias for a netdev with
type='network' but actualType='hostdev'. This alias would be
subsequently overwritten by the proper "hostdev%d" form, so
everything would operate properly, but a string would be
leaked. This patch also fixes this problem.
* qemuAssignDevicePCISlots() - would defer assigning a PCI address to
a netdev if it was type='hostdev', but not for type='network +
actualType='hostdev'. In this case, the actual device usually hasn't
been acquired yet anyway, and even in the case that it has, there is
no practical difference between assigning a PCI address while
traversing the netdev list or while traversing the hostdev
list. Because changing it would be an effective NOP (but potentially
cause some unexpected regression), this usage was left unchanged.
Join the worker thread no matter if it is running or zombie already.
With current implementation the thread is joined iff @running is true.
However, when worker executes the last line, @running is set to false.
Hence qemuMonitorTestFree() won't join it (and free resources) even
though we can clearly see worker has run (nobody else sets @running =
false).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
qemumonitorjsontest: Test qemuMonitorJSONSystemPowerdown
Right now, we are testing qemuMonitorSystemPowerdown instead of
qemuMonitorJSONSystemPowerdown. It makes no harm, as both functions have
the same header and the former is just a wrapper over the latter. But we
should be consistent as we're testing the JSON functions only in here.
The XML parser reserves 'vnet' as a prefix for automatically
generated NIC device names. Switch the veth device creation
to use this prefix, so it does not have to worry about clashes
with user specified names in the XML.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The veth device creation code run in two steps, first it looks
for two free veth device names, then it runs ip link to create
the veth pair. There is an obvious race between finding free
names and creating them, when guests are started in parallel.
Rewrite the code to loop and re-try creation if it fails, to
deal with the race condition.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
If veth device allocation has a fatal error, the veths
array may contain NULL device names. Avoid calling the
virNetDevVethDelete function on such names.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Avoid reporting an error if veth device is already deleted
The kernel automatically destroys veth devices when cleaning
up the container network namespace. During normal shutdown, it
is thus likely that the attempt to run 'ip link del vethN'
will fail. If it fails, check if the device exists, and avoid
reporting an error if it has gone. This switches to use the
virCommand APIs instead of virRun too.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
During container cleanup there is a race where the kernel may
have destroyed the veth device before we try to set it offline.
This causes log error messages. Given that we're about to
delete the device entirely, setting it offline is pointless.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When querying for kvm, we try to find 'enabled' field. Hence the error
message should report we haven't found 'enabled' and not 'running'
(which is not even in the reply). Probably a typo or copy-paste error.
qemu_hotplug: Allow QoS update in qemuDomainChangeNet
The qemuDomainChangeNet() is called when 'virsh update-device' is
invoked on a NIC. Currently, we fail to update the QoS even though
we have routines for that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
So far the virNetDevBandwidthEqual() expected both ->in and ->out items
to be allocated for both @a and @b compared. This is not necessary true
for all our code. For instance, running 'update-device' twice over a NIC
with the very same XML results in SIGSEGV-ing in this function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
libvirt previously recognized NFS, GFS2, OCFS2, and AFS filesystems as
"shared", and thus eligible for exceptions to certain rules/actions
about chowning image files before handing them off to a guest. This
patch widens the definition of "shared filesystem" to include SMB and
CIFS filesystems (aka "Windows file sharing"); both of these use the
same protocol, but different drivers so there are different magic
numbers for each.
Michal Privoznik [Thu, 19 Sep 2013 11:44:41 +0000 (13:44 +0200)]
tests: Introduce qemucapabilitiestest
This test is there to ensure that our capabilities detection code isn't
broken somehow.
How to gather test data:
Firstly, the data is split into two separate files. The former (with
suffix .replies) contains all the qemu replies. This is very fragile as
introducing a new device can mean yet another monitor command and hence
edit of this file in the future. But there's no better way of doing
this. To get this data simply turn on debug logs and copy all the
QEMU_MONITOR_IO_PROCESS lines. But be careful to not copy incomplete
ones (yeah, we report some incomplete lines too). Long story short, at
the libvirtd startup, a dummy qemu is spawn to get all the capabilities.
The latter (with suffix .caps) contains capabilities XML. Just start a
domain and copy the corresponding part from its state XML file.
Including <qemuCaps> tag.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Thu, 19 Sep 2013 13:19:08 +0000 (15:19 +0200)]
qemuMonitorTest: Make check for monitor command match optional
In a few cases we might want to not care if monitor command executed on
the mocked monitor matches the one we have reply for. Sounds crazy, but
if we just want monitor to return certain values (e.g. read from a file)
there is no need to care about command match.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Thu, 19 Sep 2013 11:56:30 +0000 (13:56 +0200)]
tests: Learn qemuMonitorTestNew optional greeting
Currently, when creating a new mocked monitor, the greeting can't be
chosen. This is crucial for next patches, because some info as qemu
version is obtained in the greeting message.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This basically covers the talking-to-monitor part of
virQEMUCapsInitQMP. The patch itself has no real value,
but it creates an entity to be tested in the next patches.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The libvirtd server pushes data out to clients. It does not
know what protocol version the client might have, so must be
conservative and use the old payload limits. ie send no more
than 256kb of data per packet.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
LXC: workaround machined uncleaned data with containers running systemd.
The problem is described by [0] but its effect on libvirt is that
starting a container with a full distro running systemd after having
stopped it simply fails.
The container cleanup now calls the machined Terminate function to make
sure that everything is in order for the next run.
Boris Fiuczynski [Mon, 30 Sep 2013 12:23:17 +0000 (14:23 +0200)]
virscsi: hostdev SCSI AdapterId retrieval fix
Fixed the retrieval of the AdapterId from the AdapterName of the
hostdev source so it does return an error instead of leaving the
adapter_id uninitialized.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com> Reviewed-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Peter Krempa [Mon, 30 Sep 2013 09:47:47 +0000 (11:47 +0200)]
qemu: process: Silence coverity warning when rewinding log file
The change in ef29de14c37d14abc546e90555a0093797facfdd that introduced
better error logging from qemu introduced a warning from coverity about
unused return value from lseek. Silence this warning and fix typo in the
corresponding error message.
Michal Privoznik [Mon, 30 Sep 2013 09:23:08 +0000 (11:23 +0200)]
python: Document virNodeGetInfo bug
The memory size in virNodeGetInfo python API binding is reported in MiB
instead of KiB (like we have in C struct). However, there already might
be applications out there relying on this inconsistence so we can't
simply fix it. Document this sad fact as known bug.
Currently the VMware version check code only supports two types of
VMware backends, Workstation and Player. But in the near future we will
have an additional one so we need to support more. Additionally, we
discover and cache the path to the vmrun binary so we should use that
path when using the corresponding binary from the VMware VIX SDK.
Michal Privoznik [Fri, 27 Sep 2013 16:04:31 +0000 (18:04 +0200)]
Makefile.am: Always include rule to make org.libvirt.api.policy
When running 'make dist' on a system without policykit, we currently
fail. This is because $(srcdir)/access/org.libvirt.api.policy is in
EXTRA_DIST, however, the rule to generate the file is conditional
whether we build with polkit or not.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Fri, 27 Sep 2013 14:47:12 +0000 (16:47 +0200)]
fchosttest: Run the test only under linux
Currently, we have functions to handle fc_host implemented just
for linux. On all other platforms an error is thrown. It makes no
sense to run the test on those platforms then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Fri, 27 Sep 2013 14:20:49 +0000 (16:20 +0200)]
genprotocol.pl: Fix code on FreeBSD too
On some systems (linux, cygwin and gnukfreebsd) rpcgen generates files
which when compiling produces this warning:
remote/remote_protocol.c: In function 'xdr_remote_node_get_cpu_stats_ret':
remote/remote_protocol.c:530: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
Hence, on those systems we need to post-process the files by the
rpc/genprotocol.pl perl script. At the beginning of the script the OS is
detected via $^O perl variable. From my latest build on FreeBSD I see we
need to fix the code there too. On FreeBSD the variable contains
'freebsd' string:
http://perldoc.perl.org/perlport.html#PLATFORMS
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The debug message said there was a timeout of 0 pending for -1 ms which
made me think this is where a hang was coming from but according to the
function comments this case means that there is no timeout pending so
make the debug message say that instead of saying there's a -1 ms
timeout.
While BSDs don't support process creation timestamp information via
PEERCRED for Unix sockets, we need to actually initialize the value
because it is used by the libvirt code.
Fix crash in libvirtd when events are registered & ACLs active
When a client disconnects from libvirtd, all event callbacks
must be removed. This involves running the public API
virConnectDomainEventDeregisterAny
This code does not run in normal API dispatch context, so no
identity was set. The result was that the access control drivers
denied the attempt to deregister callbacks. The callbacks thus
continued to trigger after the client was free'd causing fairly
predictable use of free memory & a crash.
This can be triggered by any client with readonly access when
the ACL drivers are active.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
It's possible to create a domain which will only use a TLS port
and will not have a non-TLS port set by using:
<graphics type='spice' autoport='yes' defaultMode='secure'/>
In such a setup, the 'graphics' node for the running domain will be:
<graphics type='spice' tlsPort='5900'
autoport='yes' listen='127.0.0.1'
defaultMode='secure'>
However, cmdDomDisplay loops over all the 'graphics' node, and it
ignores nodes which don't have a 'port' attribute. This means
'virsh domdisplay' will only return an empty string for domains
as the one above.
This commit looks for both 'port' and 'tlsPort' before deciding
to ignore a graphics node. It also makes sure 'port' is not printed
when it's not set.
This makes 'virsh domdisplay' return
'spice://127.0.0.1?tls-port=5900' for domains using only a TLS
port.
However, the child only unreferenced hookData.cfg and the parent only
removed the cfg reference. That said, we don't need to increment the
reference counter when assigning cfg to hookData. Both the child and the
parent will correctly remove the reference on cfg (the child will do
that through hookData).
Commit 6d7d0b1869ed293e3208d11f375cecea0129dfc5 (in 1.1.2) added bounds
checking to virDomainGetJobStats. But even at that time the API was able
to return 20 parameters while the limit was set to 16.
Eric Blake [Thu, 26 Sep 2013 21:14:38 +0000 (15:14 -0600)]
build: fix use of rpc.h on cygwin
Caused by commit 012c25e8 splitting out a convenience library.
CC libvirtd_conf_la-libvirtd-config.lo
In file included from ../src/rpc/virnetmessage.h:24:0,
from ../src/rpc/virnetserverprogram.h:27,
from ../src/rpc/virnetserver.h:32,
from libvirtd-config.c:31:
../src/rpc/virnetprotocol.h:9:21: fatal error: rpc/rpc.h: No such file
or directory
qemu: virDomainControllerFind may return 0 if controller found
The return value of virDomainControllerFind >=0 means that
the specific controller was found.
But some functions invoke it and treat 0 as not found.
This patch fix these incorrect invocation.
Peter Krempa [Thu, 26 Sep 2013 06:12:39 +0000 (08:12 +0200)]
conf: Don't crash on invalid chardev source definition of RNGs and other
Since commit 297c99a5 an invalid source definition XML of a character
device that is used as backend for RNG devices, smartcards and redirdevs
causes crash of the daemon when parsing such a definition.
The device types mentioned above are not a part of a regular character
device but are backends for other types. Thus when parsing such device
NULL is passed as the argument @chr_def. Later when checking the
validity of the definition @chr_def was dereferenced when parsing a UNIX
socket backend with missing path of the socket and crashed the daemon.
projects / libvirt.git / log