The values are currently limited to LLONG_MAX which causes some
problems. QEMU conveniently changed their maximum to 1e15 (1 PB) which
is enough for some time and we need to adapt to that so that we don't
throw "Unknown error" messages. Strictly limiting these values actually
fixes some corner case values (off-by-one checks in QEMU probably).
Since values out of the new specified range do not overflow anything,
change the type of error as well.
Store the test list in libvirtd_test_scripts, and use it where
appropriate. This also fixes the fact that we didn't ship
virsh-uriprecedence when libvirtd build is disabled.
Rather than try to fix this in the depths of the parser, just catch
the case when a config file doesn't end in a newline, and manually
append a newline to the content before parsing
Laine Stump [Thu, 21 Apr 2016 18:32:51 +0000 (14:32 -0400)]
docs: remove reference to non-existent "igmp-ipv6" protocol
IGMP is used on IPv4 networks tp setup multicast group memberships. On
IPv6, this job is done by Multicast Listener Discovery (MLD), which
uses ICMPv6 packets rather than its own IP protocol number like IGMP.
The nwfilter documentation lists "igmp-ipv6" as one of the possible
protocols, but this is ignored (and stripped from the xml). This patch
removes that erroneous reference.
Laine Stump [Thu, 21 Apr 2016 18:03:18 +0000 (14:03 -0400)]
network: fix DHCPv6 on networks with prefix != 64
According to the dnsmasq manpage, the netmask for IPv4 address ranges
will be auto-deteremined from the interface dnsmasq is listening on,
but it can't do this for IPv6 for some reason - it instead assumes a
network prefix of 64 for all IPv6 address ranges. If this is
incorrect, dnsmasq will refuse to give out an address to clients,
instead logging this message:
dnsmasq-dhcp[2380]: no address range available for DHCPv6 request via virbr0
The solution is for libvirt to add ",$prefix" to all IPv6 dhcp-range
arguments when building the dnsmasq.conf file.
Andrea Bolognani [Thu, 21 Apr 2016 10:01:27 +0000 (12:01 +0200)]
build: Fix default network generation on FreeBSD
FreeBSD's sed(1) doesn't support using "\n" to insert a newline,
so the installed default.xml file ends up containing a literal
"n" between tags; to work around this problem, add a tr(1)
invocation as suggested by the sed FAQ[1].
[1] http://sed.sourceforge.net/sedfaq4.html (4.1 c)
daemonStreamHandleRead: Rework to follow our coding pattern
Usually, we have this 'if() goto cleanup;' pattern in our new
code. It is going to be useful here too. Thing is, there was a
memleak. If there has been an error in
virNetServerProgramSendStreamError() or
virNetServerProgramSendStreamData() created message was never
freed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Tue, 29 Mar 2016 15:33:14 +0000 (17:33 +0200)]
daemonClientStream: Use unsigned int to store stream @serial
The stream serial number is the serial number of the RPC call
that initiated a data transfer. And as such can never be
negative. Moreover, when looking up internal state for a stream,
the serial numbers are compared. But hey, the serial number in
message header is unsigned too!
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Thu, 21 Apr 2016 12:35:29 +0000 (14:35 +0200)]
api: Generate docs for libvirt-common.h
Since commit f5d9c5d00cfc0c moved the virTypedParam stuff into
libvirt-common we did not generate any docs for them and neither did we
populate them into libvirt-api.xml. This broke the sanity check in
libvirt python. Fix it by generating docs for libvirt-common.h too.
Peter Krempa [Thu, 21 Apr 2016 12:31:23 +0000 (14:31 +0200)]
apibuild: Allow completely skipping certain macros
Some macros don't make sense to be documented at all. Add infrastructure
to the web/api generator and add VIR_DEPRECATED and VIR_EXPORT_VAR as
macros we should not document.
Peter Krempa [Thu, 21 Apr 2016 12:27:24 +0000 (14:27 +0200)]
include: common: Fix file header for apibuild.py
Our docs/web generator would take the complete license text and put it
into the description of the file, since it depends on position of the
"Author:" line. Move the author line to the top and remove the spurious
emacs comment.
Erik Skultety [Tue, 12 Apr 2016 19:08:57 +0000 (21:08 +0200)]
tests: remove virnetservertest data leftovers
Commit a4746114 renamed virnetservertest to virnetdaemontest to reflect some
refactor changes to virNetServer code (which moved daemon-related parts to
virNetDaemon module). Moving test data from virnetserverdata to
virnetdaemondata was also part of the commit, but the commit failed to clean
half of the files that were copied (rather than moved).
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Peter Krempa [Thu, 21 Apr 2016 07:51:08 +0000 (09:51 +0200)]
virsh: perf: Don't leak domain
After failing to parse the perf event list, the code would return
failure without freeing the previously acquired object. Rearrange the
code to avoid the problem.
Currently, if a connection URI was specified on the command line by the
'-c' switch, virsh connects to it, but after connecting overrides its
value with the one it tries to obtain from the VIRSH_DEFAULT_CONNECT_URI
environment variable.
This makes virsh connecting to the wrong URI if it disconnects from the
hypervisor and then tries to reconnect, and also leaks the original connname.
Fix by calling virGetEnvBlockSUID() before virshParseArgv().
Michal Privoznik [Tue, 19 Apr 2016 09:13:00 +0000 (11:13 +0200)]
examples: Try harder to uninstall nwfilter
We have this code in our Makefile that tries to remove
/etc/libvirt/nwfilter if directory is left empty after all our
example nwfilters were uninstalled. However, the check for that
is missing quotation marks thus rendering the test useless:
test -z allow-arp.xml allow-dhcp-server.xml .. qemu-announce-self.xml || \
rmdir "/some/path/libvirt.git/_install/etc/libvirt/nwfilter"
/bin/sh: line 0: test: too many arguments
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Tue, 19 Apr 2016 09:08:48 +0000 (11:08 +0200)]
nss: Try harder to uninstall
On BSD we are creating this symlink to libnss_libvirt.so called
nss_libvirt.so. That's just the way it is on BSD. However, when
uninstalling, we try to remove libnss_libvirt.so instead of the
symlink. Moreover, if file we are trying to remove does not exist
we error out instead of ignoring the error.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
storage: drop the plumbing needed for kvm-img/qcow-create
Remove all the plumbing needed for the different qcow-create/kvm-img
non-raw file creation.
We can drop the error messages because CreateQemuImg will thrown an
error for us but with slightly less fidelity (unable to find qemu-img),
which I think is acceptable given the unlikeliness of that error in
practice.
This an ubuntu/debian packaging convention. At one point it may have
been an actually different binary, but at least as of ubuntu precise
(the oldest supported ubuntu distro, released april 2012) kvm-img is
just a symlink to qemu-img for back compat.
qcow-create was a crippled qemu-img impl that shipped with xen. I
think supporting this was only relevant for really old distros
that didn't have a proper qemu package, like early RHEL5. I think
it's fair to drop support
network: Don't use ERR_NO_SUPPORT for invalid net-update requests
VIR_ERR_NO_SUPPORT maps to the error string
this function is not supported by the connection driver
and is largely only used for when a driver doesn't have any
implementation for a public API. So its usage with invalid
net-update requests is a bit out of place. Instead use
VIR_ERR_OPERATION_UNSUPPORTED which maps to:
Operation not supported
And is what qemu's hotplug routines use in similar scenarios
We shouldn't advertise libvirtd.socket activation, since currently
it means VM/network/... autostart won't work as expected.
We tried to find a middle ground by installing the config file without
an [Install] section, since systemd won't allow .socket to be enabled
without one... or at least it did do that; presently on f24 it allows
activating the socket quite happily. This also caused user confusion[1]
Just remove the socket file. I've filed a new RFE to track coming up
with a solution to the autostart problem[2], we can point users at that
if there's more confusion:
Andrea Bolognani [Wed, 20 Apr 2016 12:36:37 +0000 (14:36 +0200)]
tests: Fix enumeration value
Commit 3a773c43c801 introduced the testCompareNetXML2XMLResult
enumeration; however, in one instance the result variable was
assigned a value from the very similar testCompareDocXML2XMLResult
enumeration, leading to a build error.
networkxml2xmltest.c:33:42: error:
implicit conversion from enumeration type 'testCompareDomXML2XMLResult'
to different enumeration type 'testCompareNetXML2XMLResult'
[-Werror,-Wenum-conversion]
testCompareNetXML2XMLResult result = TEST_COMPARE_DOM_XML2XML_RESULT_SUCCESS;
~~~~~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Use the proper value (TEST_COMPARE_NET_XML2XML_RESULT_SUCCESS) instead.
Andrea Bolognani [Thu, 10 Mar 2016 18:52:52 +0000 (19:52 +0100)]
conf: Get rid of virDomainCapsDevice
The struct contains a single boolean field, 'supported':
the meaning of this field is too generic to be limited to
devices only, and in fact it's already being used for
other things like loaders and OSs.
Instead of trying to come up with a more generic name just
get rid of the struct altogether.
It's a fairly common error that a user tries to connect to a URI
like qemu://system or qemu://session (missing a slash). This errors
like:
$ virsh --connect qemu://session
error: failed to connect to the hypervisor
error: Unable to resolve address 'session' service '16514': No address associated with hostname
If you already know that the standard qemu URI has 3 slashes, that
error will make it obvious enough. But new user's may not get it.
There's even a RHEL support page explicitly mentioning it!:
Current implementation does not detect all incompatible configurations.
For example if we have in vzsdk bootorder "cdrom1, cdrom0" (that is
"hdb, hda" in case of ide cdroms) and cdroms do not have disk
images inserted. In this case boot order check code fails to
distiguish them at all as for both PrlVmDev_GetFriendlyName gives "".
Well the consequences are only missing warnings but as
we just have introduced all the necessary tools to face the problem -
let's fix it.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Actually using disk PrlVmDev_GetFriendlyName as id on
detaching volumes is not a problem. We can only detach
hard disks and these can not have empty friendly names.
But upcoming update device functionality for cdroms
can not use disk source as id at all as update operation
typically change this same source value. Thus we will need
to use cdrom bus and cdrom target name as cdrom id. So in attempt
to use same id scheme for all purpuses lets fix hard disk
detach function to use new id.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Our intention is to use disk bus and disk target name pair
as disk id instead of name returned by PrlVmDev_GetFriendlyName.
We already have the code that extracts this pair from vzsdk
data. Let's factor it out into a function.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Laine Stump [Mon, 18 Apr 2016 18:18:37 +0000 (14:18 -0400)]
test: enable testing for expected parse errors in network XML
This is patterned after similar functionality for domain XML tests,
but tries harder to avoid reading non-existent networkxml2xmlout data
file when parse fails.
So in glibc-2.23 sys/sysmacros.h is no longer included from sys/types.h
and we don't build because of the usage of major/minor/makedev macros.
Autoconf already has AC_HEADER_MAJOR macro that check where exactly
these functions/macros are defined, so let's use that.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
John Ferlan [Sat, 16 Apr 2016 12:11:00 +0000 (08:11 -0400)]
tests: Fix syntax in iSCSI auth/secret tests
While working on the tests for the secret initialization vector, I found
that the existing iSCSI tests were lacking in how they defined the IQN.
Many had IQN's of just 'iqn.1992-01.com.example' for one disk while using
'iqn.1992-01.com.example/1' for the second disk (same for hostdevs - guess
how they were copied/generated).
Typically (and documented this way), IQN's would include be of the form
'iqn.1992-01.com.example:storage/1' indicating an IQN using "storage" for
naming authority specific string and "/1" for the iSCSI LUN.
So modify the input XML's to use the more proper format - this of course
has a ripple effect on the output XML and the args.
Also note that the "%3A" is generated by the virURIFormat/xmlSaveUri
to represent the colon.
Since threadpool increments the current number of threads according to current
load, i.e. how many jobs are waiting in the queue. The count however, is
constrained by max and min limits of workers. The logic of this new API works
like this:
1) setting the minimum
a) When the limit is increased, depending on the current number of
threads, new threads are possibly spawned if the current number of
threads is less than the new minimum limit
b) Decreasing the minimum limit has no possible effect on the current
number of threads
2) setting the maximum
a) Icreasing the maximum limit has no immediate effect on the current
number of threads, it only allows the threadpool to spawn more
threads when new jobs, that would otherwise end up queued, arrive.
b) Decreasing the maximum limit may affect the current number of
threads, if the current number of threads is less than the new
maximum limit. Since there may be some ongoing time-consuming jobs
that would effectively block this API from killing any threads.
Therefore, this API is asynchronous with best-effort execution,
i.e. the necessary number of workers will be terminated once they
finish their previous job, unless other workers had already
terminated, decreasing the limit to the requested value.
3) setting priority workers
- both increase and decrease in count of these workers have an
immediate impact on the current number of workers, new ones will be
spawned or some of them get terminated respectively.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
New API to retrieve current server workerpool specs. Since it uses typed
parameters, more specs to retrieve can be further included in the pool of
supported ones.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Erik Skultety [Thu, 25 Feb 2016 12:14:36 +0000 (13:14 +0100)]
util: Add more getters to threadpool parameters
In order for the client to see all thread counts and limits, current total
and free worker count getters need to be introduced. Client might also be
interested in the job queue length, so provide a getter for that too. As with
the other getters, preparing for the admin interface, mutual exclusion is used
within all getters.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Erik Skultety [Mon, 4 Apr 2016 20:32:16 +0000 (22:32 +0200)]
util: Use a mutex when retrieving threadpool data
So far, the values the affected getters retrieve are static, i.e. there's no
way of changing them during runtime. But admin interface will later enable
not only getting but changing them as well. So to prevent phenomenons like
torn reads or concurrent reads and writes of unaligned values, use mutual
exclusion when getting these values (writes do, understandably, use them
already).
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Erik Skultety [Thu, 25 Feb 2016 11:45:32 +0000 (12:45 +0100)]
util: Refactor thread creation by introducing virThreadPoolExpand
When either creating a threadpool, or creating a new thread to accomplish a job
that had been placed into the jobqueue, every time thread-specific data need to
be allocated, threadpool needs to be (re)-allocated and thread count indicators
updated. Make the code clearer to read by compressing these operations into a
more complex one.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Erik Skultety [Thu, 4 Feb 2016 14:23:00 +0000 (15:23 +0100)]
libvirt-host: Move virTypedParam* to libvirt-common
Commits 0472cef6, 9afc115f, 8cd1d546 exported typed params handlers internally,
but a commit which would move the public definition from libvirt-host to
libvirt-common was missing.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
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