Commit Graph

28559 Commits

Author SHA1 Message Date
Andrea Bolognani
90161710b9 conf: Small indentation and coding style fixes
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2018-02-01 10:34:41 +01:00
Daniel P. Berrangé
7090a82041 admin: set XDR_CFLAGS when building admin server
The XDR_CFLAGS variable is needed when the XDR headers are not
part of the stock glibc install

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 19:05:45 +00:00
Daniel P. Berrangé
31869efe2a storage: remove virConnectPtr from all backend functions
Now that we can open connections to the secondary drivers on demand,
there is no need to pass a virConnectPtr into all the backend
functions.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 18:34:48 +00:00
Daniel P. Berrangé
decaeb2882 storage: open nodedev driver connection at time of use
Instead of passing around a virConnectPtr object, just open a connection
to the nodedev driver at time of use. Opening connections on demand will
be beneficial when the nodedev driver is in a separate daemon. It also
solves the problem that a number of callers just pass in a NULL
connection today which prevents nodedev lookup working at all.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 18:34:48 +00:00
Daniel P. Berrangé
a494f7fd4f storage: open secret driver connection at time of use
Instead of passing around a virConnectPtr object, just open a connection
to the secret driver at time of use. Opening connections on demand will
be beneficial when the secret driver is in a separate daemon. It also
solves the problem that a number of callers just pass in a NULL
connection today which prevents secret lookup working at all.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 18:34:48 +00:00
Daniel P. Berrangé
2870419eb9 driver: add some helpers for opening secondary driver connections
Various parts of libvirt will want to open connections to secondary
drivers. The right URI to use will depend on the context, so rather than
duplicating that logic in various places, use some helper APIs. This
will also make it easier for us to later pre-open/cache connections to
avoid repeated opening & closing the same connectiong during autostart.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 18:34:47 +00:00
Daniel P. Berrangé
74d7c51815 secret: allow opening with secret:///system and secret:///session URIs
Allow the possibility of opening a connection to only the secret
driver, by defining secret:///system and secret:///session URIs
and registering a fake hypervisor driver that supports them.

The hypervisor drivers can now directly open a secret driver
connection at time of need, instead of having to pass around a
virConnectPtr through many functions. This will facilitate the later
change to support separate daemons for each driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:46:26 +00:00
Daniel P. Berrangé
dfb79d6cec nodedev: allow opening with nodedev:///system and nodedev:///session URIs
Allow the possibility of opening a connection to only the nodedev
driver, by defining nodedev:///system and nodedev:///session URIs
and registering a fake hypervisor driver that supports them.

The hypervisor drivers can now directly open a nodedev driver
connection at time of need, instead of having to pass around a
virConnectPtr through many functions. This will facilitate the later
change to support separate daemons for each driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:46:09 +00:00
Daniel P. Berrangé
3bd64d3306 interface: allow opening with interface:///system and interface:///session URIs
Allow the possibility of opening a connection to only the interface
driver, by defining interface:///system and interface:///session URIs
and registering a fake hypervisor driver that supports them.

The hypervisor drivers can now directly open a interface driver
connection at time of need, instead of having to pass around a
virConnectPtr through many functions. This will facilitate the later
change to support separate daemons for each driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:45:51 +00:00
Daniel P. Berrangé
1292de7ef1 nwfilter: allow opening with nwfilter:///system URI
Allow the possibility of opening a connection to only the storage
driver, by defining a nwfilter:///system URI and registering a fake
hypervisor driver that supports it.

The hypervisor drivers can now directly open a nwfilter driver
connection at time of need, instead of having to pass around a
virConnectPtr through many functions. This will facilitate the later
change to support separate daemons for each driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:45:16 +00:00
Daniel P. Berrangé
1409a541c0 network: allow opening with network:///system and network:///session URIs
Allow the possibility of opening a connection to only the network
driver, by defining network:///system and network:///session URIs
and registering a fake hypervisor driver that supports them.

The hypervisor drivers can now directly open a network driver
connection at time of need, instead of having to pass around a
virConnectPtr through many functions. This will facilitate the later
change to support separate daemons for each driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:45:01 +00:00
Daniel P. Berrangé
c9fc538939 network: move driver registration back to end of the file
By convention the last thing in the driver.c files should be the driver
callback table and function to register it.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:44:44 +00:00
Daniel P. Berrangé
b8eb6194da storage: allow opening with storage:///system and storage:///session URIs
Allow the possibility of opening a connection to only the storage
driver, by defining storage:///system and storage:///session URIs
and registering a fake hypervisor driver that supports them.

The hypervisor drivers can now directly open a storage driver
connection at time of need, instead of having to pass around a
virConnectPtr through many functions. This will facilitate the later
change to support separate daemons for each driver.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:44:43 +00:00
Daniel P. Berrangé
d8924a6408 storage: move driver registration back to end of the file
By convention the last thing in the driver.c files should be the driver
callback table and function to register it.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:40:32 +00:00
Daniel P. Berrange
5315d20698 util: use union for sockaddr structs to avoid aliasing
Some platforms/toolchains will complain about casting
sockaddr_storage to sockaddr_un because it breaks strict
aliasing rule

../../src/util/virutil.c: In function 'virGetUNIXSocketPath':
../../src/util/virutil.c:2005: error: dereferencing pointer 'un' does break strict-aliasing rules [-Wstrict-aliasing]

Change the code to use a union, in the same way that the
virsocketaddr.h header does.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 17:33:08 +00:00
Daniel P. Berrangé
707022c3e8 tools: unlink bash completion files before symlinking
"ln" will not replace an existing symlink, so if you run 'make install'
twice, the second time will get an error:

  ln: failed to create symbolic link 'virsh': File exists

We must always remove the symlink target first.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:30:55 +00:00
Daniel P. Berrangé
eef9812827 Fixed virGetUNIXSocketPath stub on Win32
The _() macro was not terminated and an argument needs to be marked as
unused.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 17:10:52 +00:00
John Ferlan
5b5bff35a8 qemu: Update qemuDomainFindSCSIControllerModel return
Now that the controller model is updated during post parse callback,
this code no longer needs to fetch the model based on the capabilities
and can just return the model directly if the controller is found.

Removal of @qemuCaps cascades through various callers which are now
updated to not pass the capabilities.
2018-01-31 11:32:04 -05:00
John Ferlan
de8fac5f21 qemu: Reduce need to call qemuDomainGetSCSIControllerModel
Now that post parse processing handles setting the SCSI controller
model, there's no need to call qemuDomainGetSCSIControllerModel to
get the "default controller" when building the command line controller
string or when assigning the spaprvio address since the controller
model value will already be filled in.
2018-01-31 11:32:04 -05:00
John Ferlan
d1b59c6214 conf: Allow configuration of implicit controller model
When an implicit controller is added, the model is defined as -1
(IOW: undefined). So, if an implicit SCSI controller was added,
can set the model to the default value if the underlying hypervisor
supports it.
2018-01-31 11:32:04 -05:00
John Ferlan
62f8c94732 qemu: Introduce qemuDomainSetSCSIControllerModel
During post parse processing, let's force setting the controller
model to default value if not already set for defined controllers
(e.g. the non implicit ones).
2018-01-31 11:32:04 -05:00
John Ferlan
13d216617d qemu: Fetch/save the default SCSI controller model during hotplug
If we're going to add a controller to the domain, let's set the
default SCSI model value if we cannot find another SCSI controller
already present.

NB: Requires updating the live output test data since the model
will now be formatted.
2018-01-31 11:32:04 -05:00
John Ferlan
fadfb4f9b3 qemu: Introduce qemuDomainGetSCSIControllerModel
Rename and rework qemuDomainSetSCSIControllerModel since we're
really not setting the SCSI controller model. Instead the code
is either returning the existing SCSI controller model value, the
default value based on the capabilities, or -1 with the error set.
2018-01-31 11:32:04 -05:00
John Ferlan
6ae6ffd88e qemu: Introduce qemuDomainFindSCSIControllerModel
Rather than repeat multiple steps in order to find the SCSI
controller model, let's combine them into one helper that will
return either the model from the definition or the default
model based on the capabilities.

This patch adds an extra check/error that the controller
that's being found actually exists. This just clarifies that
the error was because the controller doesn't exist rather
than the more generic error that we were unable to determine
the model from qemuDomainSetSCSIControllerModel when a -1
was passed in and the capabilities were unable to find one.
2018-01-31 11:32:04 -05:00
John Ferlan
932862b8bf conf: Rework and rename virDomainDeviceFindControllerModel
As it turns out virDomainDeviceFindControllerModel was only ever
called for SCSI controllers using VIR_DOMAIN_CONTROLLER_TYPE_SCSI
as a parameter.

So rename to virDomainDeviceFindSCSIController and rather than
return a model, let's return a virDomainControllerDefPtr to let
the caller reference whatever it wants.
2018-01-31 11:32:04 -05:00
John Ferlan
e37540f459 qemu: Split qemuDomainSetSCSIControllerModel
Rather than one function serving two purposes, let's split out the
else condition which is checking whether the model can be used
during command line building based on the capabilities.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2018-01-31 11:32:04 -05:00
Michal Privoznik
7b0ea999fc virUSBDeviceNew: Construct vroot path properly
When starting an LXC container, the /dev entries are created
under temp root (/var/run/libvirt/lxc/$name.dev), relabelled and
then the root is pivoted. However, when it comes to USB devices
which keep path to the device in the structure we need a way to
override the default /dev/usb/... path because we want to work
with the one under temp root. That's what @vroot argument is for
in virUSBDeviceNew. However, what is being passed there is:

  vroot = /var/run/libvirt/lxc/lxc_0.dev/bus/usb

Therefore, constructed path is wrong:

  dev->path = //var/run/libvirt/lxc/lxc_0.dev/bus/usb//dev/bus/usb/002/002

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-01-31 17:10:01 +01:00
Daniel P. Berrangé
12ba706d6d Check for tabs in augeas files
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-01-31 15:19:26 +00:00
Daniel P. Berrange
ce7ae55ea1 lockd: add support for admin protocol in virtlockd
Add a virtlockd-admin-sock can serves the admin protocol for the virtlockd
daemon and define a virtlockd:///{system,session}  URI scheme for
connecting to it.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:18:36 +00:00
Daniel P. Berrange
85d45ff05d logd: add support for admin protocol in virtlogd
Add a virtlogd-admin-sock can serves the admin protocol for the virtlogd
daemon and define a virtlogd:///{system,session}  URI scheme for
connecting to it.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:17:47 +00:00
Daniel P. Berrange
8aca141081 rpc: refactor virNetServer setup for post-exec restarts
With the current code it is neccessary to call

  virNetDaemonNewPostExecRestart()

and then for each server that needs restarting you are supposed
to call

  virNetDaemonAddSeverPostExecRestart()

This is fine if there's only ever one server, but as soon as you
have two servers it is impossible to use this design. The code
has no idea which servers were recorded in the JSON state doc,
nor in which order the hash table serialized its keys.

So this patch changes things so that we only call

  virNetDaemonNewPostExecRestart()

passing in a callback, which is invoked once for each server
found int he JSON state doc.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:17:14 +00:00
Daniel P. Berrange
e72f3e5933 rpc: add method for checking if a named server exists
It is not possible to blindly call virNetDaemonGetServer()
because in a post-exec restart scenario, some servers may
not exist and this method will pollute the error logs.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:16:40 +00:00
Daniel P. Berrange
9da0cc9ddb rpc: annotate various parameters as being required to be non-NULL
The server name and client data callbacks need to be non-NULL or the
system will crash at various times. This is particularly bad when some
of the crashes only occur post-exec restart.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:16:03 +00:00
Daniel P. Berrange
b41780e47a rpc: pass virNetServer to post-exec restart callback in typesafe manner
The virNetServer class is passing a pointer to itself to the
virNetServerClient as a 'void *' pointer. This is presumably due to fact
that the virnetserverclient.h file doesn't see the virNetServerPtr
typedef. The typedef is easily movable though, which lets us get
typesafe parameter passing, removing the confusion of passing two
distinct 'void *' pointers to one method.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:15:25 +00:00
Daniel P. Berrange
2c76fa91d3 rpc: clarify "void *" values passed to client callbacks
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:14:47 +00:00
Daniel P. Berrange
9fe6619d4a util: add virGetUNIXSocketPath helper
When receiving multiple socket FDs from systemd, it is critical to know
what socket address each corresponds to so we can setup the right
protocols on each.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:12:53 +00:00
Daniel P. Berrange
b42c591fec admin: add support for post-exec restart callbacks
We don't have any per-client private data we need to persist, but the
RPC infrastructure requires that we provide the callbacks and serialize
an empty JSON object. This makes us future proof going forwards.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:12:44 +00:00
Daniel P. Berrange
99d69f6925 libvirtd: rename virNetServerClient callback impls to match type names
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:12:33 +00:00
Daniel P. Berrange
b1e03dad86 admin: move admins server impl/dispatch into src/admin directory
The admin server functionality is a generic concept that should be wired
up into all libvirt daemons, but is currently integrated with the
libvirtd code. Move it all into the src/admin directory to prepare for
broader reuse.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-01-31 15:12:30 +00:00
Michal Privoznik
08327dfff3 tools: Make symlinks to vsh bash-completion script
The bash-completion project documents that only those scripts
from $BASH_COMPLETIONS_DIR that share name with the current
command for which <TAB> was hit are loaded [1]. This means, that
vsh script we have there is not loaded. We have to create
symlinks for virsh and virt-admin.

At the same time, we have to create new RPM package because
virt-admin and client packages are independent. That means we
cannot place the vsh script in either of them. What we can do is
to have a different package that contains the completion script
and then virt-admin and client packages contain only the symlink
and require the bash-completion package.

1: https://github.com/scop/bash-completion#faq

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-01-31 15:41:51 +01:00
Michal Privoznik
74f044acf7 virsh: Offer only persistent domains for autostart
The 'autostart' command accepts only persistent domains. Make the
completer return only those.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-01-31 15:41:51 +01:00
Michal Privoznik
3b225256cd virshDomainNameCompleter: Prune accepted flags
Only a small subset of VIR_CONNECT_LIST_DOMAINS_* flags are
actually used for this completer. Remove the unused ones. Note
that this is unrelated to other commands using
VIR_CONNECT_LIST_DOMAINS_* (i.e. cmdList) as this commit targets
the completer only and nothing else.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-01-31 15:41:51 +01:00
Martin Kletzander
6c44013b17 qemu: Restore resctrl alloc data after restart
During reconnect we need to reconstruct the paths of all cachetunes so that they
get cleaned up when the domain is stopped.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-01-31 14:51:34 +01:00
Martin Kletzander
b9ceacba7c util: Extract path formatting into virResctrlAllocDeterminePath
We can use this from more places later, so just a future code de-duplication.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-01-31 14:51:34 +01:00
Martin Kletzander
272649a1d7 qemu: Restore machinename even without cgroups
The virresctrl will use this as well and we need to have that info after restart
to properly clean up /sys/fs/resctrl.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-01-31 14:51:34 +01:00
Martin Kletzander
859186091c util: Don't overwrite mask in virResctrlAllocFindUnused
Due to confusing naming the pointer to the mask got copied which must not
happen, so use UpdateMask instead of SetMask.  That also means we can get
completely rid of SetMask.

Also don't clear the free bits since it is not used again (leftover from
previous versions).

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-01-31 14:51:34 +01:00
Martin Kletzander
c39ce914dd util: Use default group's mask for unspecified resctrl allocations
Introduce virResctrlAllocCopyMasks() and use that to initially copy the default
group schemata to the allocation before reserving any parts of the cache.  The
reason for this is that when new group is created the schemata will have unknown
data in it.  If there was previously group with the same CLoS ID, it will have
the previous valies, if not it will have all bits set.  And we need to set all
unspecified (in the XML) allocations to the same one as the default group.

Some non-Linux functions now need to be made public due to this change.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1289368

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-01-31 14:51:34 +01:00
Martin Kletzander
f6199295a9 util: Add helpers for getting resctrl group allocs
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-01-31 14:51:34 +01:00
Peter Krempa
f46d6e22f2 util: storage: Parse 'lun' for iSCSI protocol from JSON as string or number
While the QEMU QAPI schema describes 'lun' as a number, the code dealing
with JSON strings does not strictly adhere to this schema and thus
formats the number back as a string. Use the new helper to retrieve both
possibilities.

Note that the formatting code is okay and qemu will accept it as an int.

Tweak also one of the test strings to verify that both formats work
with libvirt.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1540290
2018-01-31 12:22:25 +01:00
Peter Krempa
d3da8013cc util: json: Add helper to return string or number properties as string
The helper is useful in cases when the JSON we have to parse may contain
one of the two due to historical reasons and the number value itself
would be stored as a string.
2018-01-31 12:21:39 +01:00