Commit Graph

303 Commits

Author SHA1 Message Date
Stefan Berger
43d1616ff5 node_device: fix possible non-terminated string
Error: STRING_NULL:
/libvirt/src/node_device/node_device_linux_sysfs.c:80:
string_null_argument: Function "saferead" does not terminate string "*buf".
/libvirt/src/util/util.c:101:
string_null_argument: Function "read" fills array "*buf" with a non-terminated string.
/libvirt/src/node_device/node_device_linux_sysfs.c:87:
string_null: Passing unterminated string "buf" to a function expecting a null-terminated string.
2012-05-04 13:22:22 -04:00
Daniel P. Berrange
2223ea984c The policy kit and HAL node device drivers both require a
DBus connection. The HAL device code further requires that
the DBus connection is integrated with the event loop and
provides such glue logic itself.

The forthcoming FirewallD integration also requires a
dbus connection with event loop integration. Thus we need
to pull the current event loop glue out of the HAL driver.

Thus we create src/util/virdbus.{c,h} files. This contains
just one method virDBusGetSystemBus() which obtains a handle
to the single shared system bus instance, with event glue
automagically setup.
2012-04-19 17:03:10 +01:00
Eric Blake
9011a494ac build: avoid s390 compiler warnings
I noticed these compiler warnings when building for the s390 architecture.

* src/node_device/node_device_udev.c (udevDeviceMonitorStartup):
Mark unused variable.
* src/nodeinfo.c (linuxNodeInfoCPUPopulate): Avoid unused variable.
2012-04-10 09:51:51 -06:00
Daniel P. Berrange
ec8cae93db Consistent style for usage of sizeof operator
The code is splattered with a mix of

  sizeof foo
  sizeof (foo)
  sizeof(foo)

Standardize on sizeof(foo) and add a syntax check rule to
enforce it

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-03-30 11:47:24 +01:00
Osier Yang
7c90026db9 npiv: Auto-generate WWN if it's not specified
The auto-generated WWN comply with the new addressing schema of WWN:

<quote>
the first nibble is either hex 5 or 6 followed by a 3-byte vendor
identifier and 36 bits for a vendor-specified serial number.
</quote>

We choose hex 5 for the first nibble. And for the 3-bytes vendor ID,
we uses the OUI according to underlying hypervisor type, (invoking
virConnectGetType to get the virt type). e.g. If virConnectGetType
returns "QEMU", we use Qumranet's OUI (00:1A:4A), if returns
ESX|VMWARE, we use VMWARE's OUI (00:05:69). Currently it only
supports qemu|xen|libxl|xenapi|hyperv|esx|vmware drivers. The last
36 bits are auto-generated.
2012-02-10 12:53:25 +08:00
Osier Yang
cc17f09246 npiv: Expose fabric_name outside
This patch is to expose the fabric_name of fc_host class, which
might be useful for users who wants to known which fabric the
(v)HBA connects to.

The patch also adds the missed capabilities' XML schema of scsi_host,
(of course, with fabric_wwn added), and update the documents
(docs/formatnode.html.in)
2011-12-07 18:42:08 +08:00
Eric Blake
e55ec69de6 build: drop useless dirent.h includes
* .gnulib: Update to latest, for improved syntax-check.
* src/lxc/lxc_container.c (includes): Drop unused include.
* src/network/bridge_driver.c: Likewise.
* src/node_device/node_device_linux_sysfs.c: Likewise.
* src/openvz/openvz_driver.c: Likewise.
* src/qemu/qemu_conf.c: Likewise.
* src/storage/storage_backend_iscsi.c: Likewise.
* src/storage/storage_backend_mpath.c: Likewise.
* src/uml/uml_conf.c: Likewise.
* src/uml/uml_driver.c: Likewise.
2011-11-11 14:12:37 -07:00
Eric Blake
430156cf32 build: add compiler attributes to virUUIDParse
Coverity complained that most, but not all, clients of virUUIDParse
were checking for errors.  Silence those coverity warnings by
explicitly marking the cases where we trust the input, and fixing
one instance that really should have been checking.  In particular,
this silences a rather large percentage of the warnings I saw on my
most recent Coverity analysis run.

* src/util/uuid.h (virUUIDParse): Enforce rules.
* src/util/uuid.c (virUUIDParse): Drop impossible check; at least
Coverity will detect if we break rules and pass NULL.
* src/xenapi/xenapi_driver.c (xenapiDomainCreateXML)
(xenapiDomainLookupByID, xenapiDomainLookupByName)
(xenapiDomainDefineXML): Ignore return when we trust data source.
* src/vbox/vbox_tmpl.c (nsIDtoChar, vboxIIDToUUID_v3_x)
(vboxCallbackOnMachineStateChange)
(vboxCallbackOnMachineRegistered, vboxStoragePoolLookupByName):
Likewise.
* src/node_device/node_device_hal.c (gather_system_cap): Likewise.
* src/xenxs/xen_sxpr.c (xenParseSxpr): Check for errors.
2011-10-13 12:23:37 -06:00
Michal Privoznik
45ad3d6962 debug: Annotate some variables as unused
as they are not used with debugging turned off.
2011-09-27 10:16:46 +02:00
Soren Hansen
9c7283166f Don't treat pci_system_init failure as fatal if no PCI bus is present
Xen PV domU's have no PCI bus. node_device_udev.c calls pci_system_init
which looks for /sys/bus/pci. If it does not find /sys/bus/pci (which it
won't in a Xen PV domU) it returns unsuccesfully (ENOENT), which libvirt
considers fatal. This makes libvirt unusable in this environment, even
though there are plenty of valid virtualisation options that work
there (LXC, UML, and QEmu spring to mind)

https://bugzilla.redhat.com/show_bug.cgi?id=709471

Signed-off-by: Soren Hansen <soren@linux2go.dk>
2011-09-08 11:36:18 +01:00
Roopa Prabhu
03172265d3 pci: Move some pci sriov helper code out of node device driver to util/pci
This patch moves some of the sriov related pci code from node_device driver
to src/util/pci.[ch]. Some functions had to go thru name and argument list
change to accommodate the move.

Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
2011-08-16 11:59:00 -04:00
Eric Blake
8e22e08935 build: rename files.h to virfile.h
In preparation for a future patch adding new virFile APIs.

* src/util/files.h, src/util/files.c: Move...
* src/util/virfile.h, src/util/virfile.c: ...here, and rename
functions to virFile prefix.  Macro names are intentionally
left alone.
* *.c: All '#include "files.h"' uses changed.
* src/Makefile.am (UTIL_SOURCES): Reflect rename.
* cfg.mk (exclude_file_name_regexp--sc_prohibit_close): Likewise.
* src/libvirt_private.syms: Likewise.
* docs/hacking.html.in: Likewise.
* HACKING: Regenerate.
2011-07-21 10:34:51 -06:00
Michal Privoznik
4f550a129e udev: Don't try to dump DMI on non-intel archs
DMI is Intel & Intel-compatible specific. Don't try to dump information
on non-compatible architectures, which results only in error message in
logs.
2011-07-20 10:03:09 +02:00
Eric Blake
ba78d2cf89 node_device: reject unknown flags
* src/node_device/node_device_driver.c (nodeNumOfDevices)
(nodeListDevices, nodeDeviceGetXMLDesc, nodeDeviceCreateXML):
Reject unknown flags.
* src/node_device/node_device_hal.c (halNodeDrvOpen): Likewise.
* src/node_device/node_device_udev.c (udevNodeDrvOpen): Likewise.
2011-07-13 09:04:54 -06:00
Eric Blake
1740c38116 drivers: prefer unsigned int for flags
Now that the public APIs always use unsigned flags, the internal
driver callbacks might as well do likewise.

* src/driver.h (vrDrvOpen, virDrvDomainCoreDump)
(virDrvDomainGetXMLDesc, virDrvNetworkGetXMLDesc)
(virDrvNWFilterGetXMLDesc): Update type.
* src/remote/remote_protocol.x (remote_open_args)
(remote_domain_core_dump_args, remote_domain_get_xml_desc_args)
(remote_network_get_xml_desc_args)
(remote_nwfilter_get_xml_desc_args): Likewise.
* src/test/test_driver.c: Update clients.
* src/remote/remote_driver.c: Likewise.
* src/xen/xen_hypervisor.c: Likewise.
* src/xen/xen_hypervisor.h: Likewise.
* src/xen/xen_driver.c: Likewise.
* src/xen/xend_internal.c: Likewise.
* src/xen/xend_internal.h: Likewise.
* src/xen/xm_internal.c: Likewise.
* src/xen/xm_internal.h: Likewise.
* src/xen/xs_internal.c: Likewise.
* src/xen/xs_internal.h: Likewise.
* src/xen/xen_inotify.c: Likewise.
* src/xen/xen_inotify.h: Likewise.
* src/phyp/phyp_driver.c: Likewise.
* src/openvz/openvz_driver.c: Likewise.
* src/vmware/vmware_driver.c: Likewise.
* src/vbox/vbox_driver.c: Likewise.
* src/vbox/vbox_tmpl.c: Likewise.
* src/xenapi/xenapi_driver.c: Likewise.
* src/esx/esx_driver.c: Likewise.
* src/esx/esx_interface_driver.c: Likewise.
* src/esx/esx_network_driver.c: Likewise.
* src/esx/esx_storage_driver.c: Likewise.
* src/esx/esx_device_monitor.c: Likewise.
* src/esx/esx_secret_driver.c: Likewise.
* src/esx/esx_nwfilter_driver.c: Likewise.
* src/interface/netcf_driver.c: Likewise.
* src/nwfilter/nwfilter_driver.c: Likewise.
* src/libxl/libxl_driver.c: Likewise.
* src/qemu/qemu_driver.c: Likewise.
* src/lxc/lxc_driver.c: Likewise.
* src/uml/uml_driver.c: Likewise.
* src/network/bridge_driver.c: Likewise.
* src/secret/secret_driver.c: Likewise.
* src/storage/storage_driver.c: Likewise.
* src/node_device/node_device_hal.c: Likewise.
* src/node_device/node_device_udev.c: Likewise.
* src/remote_protocol-structs: Likewise.
2011-07-07 14:15:37 -06:00
Matthias Bolte
c7694e3e50 nodedev: Let check_fc_host_linux report errors to the caller 2011-07-06 08:51:11 +02:00
Cole Robinson
6094ad7bd7 Promote virEvent*Handle/Timeout to public API
Since we virEventRegisterDefaultImpl is now a public API, callers need
a way to invoke the default registered Handle and Timeout functions. We
already have general functions for these internally, so promote
them to the public API.

v2:
    Actually add APIs to libvirt.h
2011-06-21 10:08:47 -04:00
Matthias Bolte
4bf1f33b7e docs: Make hvsupport.pl pick up the host device drivers
Annotate the ESX device driver dummy.

Refactor the udev and hal device driver strcuts to match the
common annotation pattern.
2011-06-06 10:45:59 +02:00
Lai Jiangshan
b65f37a4a1 libvirt,logging: cleanup VIR_XXX0()
These VIR_XXXX0 APIs make us confused, use the non-0-suffix APIs instead.

How do these coversions works? The magic is using the gcc extension of ##.
When __VA_ARGS__ is empty, "##" will swallow the "," in "fmt," to
avoid compile error.

example: origin				after CPP
	high_level_api("%d", a_int)	low_level_api("%d", a_int)
	high_level_api("a  string")	low_level_api("a  string")

About 400 conversions.

8 special conversions:
VIR_XXXX0("") -> VIR_XXXX("msg") (avoid empty format) 2 conversions
VIR_XXXX0(string_literal_with_%) -> VIR_XXXX(%->%%) 0 conversions
VIR_XXXX0(non_string_literal) -> VIR_XXXX("%s", non_string_literal)
  (for security) 6 conversions

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
2011-05-11 12:41:14 -06:00
Eric Blake
98cd17bd18 node_device: avoid null dereference on error
If we plow on after udev_device_get_syspath fails, we will hit a NULL
dereference.  Clang found one due to strdup later in udevSetParent,
but in fact we hit a NULL dereference sooner because of the use of
STREQ within virNodeDeviceFindBySysfsPath.

* src/conf/node_device_conf.h (virNodeDeviceFindBySysfsPath): Mark
path argument non-null.
* src/node_device/node_device_udev.c (udevSetParent): Avoid null
dereference.
2011-05-11 11:55:16 -06:00
Matthias Bolte
9817604afc Rename internal DumpXML functions to GetXMLDesc
This matches the public API and helps to get rid of some special
case code in the remote generator.

Rename driver API functions and XDR protocol structs.

No functional change included outside of the remote generator.
2011-05-10 20:32:41 +02:00
Eric Blake
68ea80cfdd maint: rename virBufferVSprintf to virBufferAsprintf
We already have virAsprintf, so picking a similar name helps for
seeing a similar purpose.  Furthermore, the prefix V before printf
generally implies 'va_list', even though this variant was '...', and
the old name got in the way of adding a new va_list version.

global rename performed with:

$ git grep -l virBufferVSprintf \
  | xargs -L1 sed -i 's/virBufferVSprintf/virBufferAsprintf/g'

then revert the changes in ChangeLog-old.
2011-05-05 13:47:40 -06:00
Michal Privoznik
a2eab0033c Fix disability to run on systems with no PCI bus
The patch which moved libpciaccess initialization to one place caused
regression - we were not able to run on system with no PCI bus, like
s390(x).
2011-05-03 13:46:22 +02:00
Serge Hallyn
2879582847 Change locking for udev monitor and callbacks
We're seeing bugs apparently resulting from thread unsafety of
libpciaccess, such as
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/726099
To prevent those, as suggested by danpb on irc, move the
nodeDeviceLock(driverState) higher into the callers.  In
particular:

  udevDeviceMonitorStartup should hold the lock while calling
  udevEnumerateDevices(), and udevEventHandleCallback should hold it
  over its entire execution.

It's not clear to me whether it is ok to hold the
nodeDeviceLock while taking the virNodeDeviceObjLock(dev) on a
device.  If not, then the lock will need to be dropped around
the calling of udevSetupSystemDev(), and udevAddOneDevice()
may not actually be safe to call from higher layers with the
driverstate lock held.

libvirt 0.8.8 with this patch on it seems to work fine for me.
Assuming it looks ok and I haven't done anything obviously dumb,
I'll ask the bug submitters to try this patch.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2011-04-06 10:20:47 -06:00
Eric Blake
0d166c6b7c build: detect potentential uninitialized variables
Even with -Wuninitialized (which is part of autobuild.sh
--enable-compile-warnings=error), gcc does NOT catch this
use of an uninitialized variable:

{
  if (cond)
    goto error;
  int a = 1;
error:
  printf("%d", a);
}

which prints 0 (supposing the stack started life wiped) if
cond was true.  Clang will catch it, but we don't use clang
as often.  Using gcc -Wjump-misses-init catches it, but also
gives false positives:

{
  if (cond)
    goto error;
  int a = 1;
  return a;
error:
  return 0;
}

Here, a was never used in the scope of the error block, so
declaring it after goto is technically fine (and clang agrees).
However, given that our HACKING already documents a preference
to C89 decl-before-statement, the false positive warning is
enough of a prod to comply with HACKING.

[Personally, I'd _really_ rather use C99 decl-after-statement
to minimize scope, but until gcc can efficiently and reliably
catch scoping and uninitialized usage bugs, I'll settle with
the compromise of enforcing a coding standard that happens to
reject false positives if it can also detect real bugs.]

* acinclude.m4 (LIBVIRT_COMPILE_WARNINGS): Add -Wjump-misses-init.
* src/util/util.c (__virExec): Adjust offenders.
* src/conf/domain_conf.c (virDomainTimerDefParseXML): Likewise.
* src/remote/remote_driver.c (doRemoteOpen): Likewise.
* src/phyp/phyp_driver.c (phypGetLparNAME, phypGetLparProfile)
(phypGetVIOSFreeSCSIAdapter, phypVolumeGetKey)
(phypGetStoragePoolDevice)
(phypVolumeGetPhysicalVolumeByStoragePool)
(phypVolumeGetPath): Likewise.
* src/vbox/vbox_tmpl.c (vboxNetworkUndefineDestroy)
(vboxNetworkCreate, vboxNetworkDumpXML)
(vboxNetworkDefineCreateXML): Likewise.
* src/xenapi/xenapi_driver.c (getCapsObject)
(xenapiDomainDumpXML): Likewise.
* src/xenapi/xenapi_utils.c (createVMRecordFromXml): Likewise.
* src/security/security_selinux.c (SELinuxGenNewContext):
Likewise.
* src/qemu/qemu_command.c (qemuBuildCommandLine): Likewise.
* src/qemu/qemu_hotplug.c (qemuDomainChangeEjectableMedia):
Likewise.
* src/qemu/qemu_process.c (qemuProcessWaitForMonitor): Likewise.
* src/qemu/qemu_monitor_text.c (qemuMonitorTextGetPtyPaths):
Likewise.
* src/qemu/qemu_driver.c (qemudDomainShutdown)
(qemudDomainBlockStats, qemudDomainMemoryPeek): Likewise.
* src/storage/storage_backend_iscsi.c
(virStorageBackendCreateIfaceIQN): Likewise.
* src/node_device/node_device_udev.c (udevProcessPCI): Likewise.
2011-04-04 11:26:29 -06:00
Guido Günther
d0bd206a61 Make check_fc_host() and check_vport_capable() usable as rvalues
as needed on non linux ports using HAL.
2011-04-01 11:23:51 +02:00
Eric Blake
4c7508b4de udev: fix regression with qemu:///session
https://bugzilla.redhat.com/show_bug.cgi?id=684655 points out
a regression introduced in commit 2215050edd - non-root users
can't connect to qemu:///session because libvirtd dies when
it can't use pciaccess initialization.

* src/node_device/node_device_udev.c (udevDeviceMonitorStartup):
Don't abort udev driver (and libvirtd overall) if non-root user
can't use pciaccess.
2011-03-21 10:47:48 -06:00
Eric Blake
994e7567b6 maint: kill all remaining uses of old DEBUG macro
Done mechanically with:
$ git grep -l '\bDEBUG0\? *(' | xargs -L1 sed -i 's/\bDEBUG0\? *(/VIR_&/'

followed by manual deletion of qemudDebug in daemon/libvirtd.c, along
with a single 'make syntax-check' fallout in the same file, and the
actual deletion in src/util/logging.h.

* src/util/logging.h (DEBUG, DEBUG0): Delete.
* daemon/libvirtd.h (qemudDebug): Likewise.
* global: Change remaining clients over to VIR_DEBUG counterpart.
2011-02-21 08:46:52 -07:00
Daniel P. Berrange
7a4bc156c1 Adjust some log levels in udev driver
Most of te VIR_INFO calls in the udev driver are only relevant
to developers so can switch to VIR_DEBUG. Failure to initialize
libpciaccess though is a fatal error

* src/node_device/node_device_udev.c: Adjust log levels
2011-02-09 17:23:21 +00:00
Daniel P. Berrange
cd782cc391 Support SCSI RAID type & lower log level for unknown types
The Linux kernel headers don't have a value for SCSI type 12,
but HAL source code shows this to be a 'raid'. Add workaround
for this type. Lower log level for unknown types since
this is not a fatal error condition. Include the device sysfs
path in the log output to allow identification of which device
has problems.

* src/node_device/node_device_udev.c: Add SCSI RAID type
2011-02-09 16:20:38 +00:00
Daniel P. Berrange
2215050edd Only initialize/cleanup libpciaccess once
libpciaccess has many bugs in its pci_system_init/cleanup
functions that makes calling them multiple times unwise.
eg it will double close() FDs, and leak other FDs.

* src/node_device/node_device_udev.c: Only initialize
  libpciaccess once
2011-02-09 16:20:27 +00:00
Chris Wright
51798a5d1c node_device: udev driver does not handle SR-IOV devices
The udev driver does not update a PCI device with its SR-IOV capabilities,
when applicable, the way the hal driver does.  As a result, dumping the
device's XML will not include the relevant physical or virtual function
information.

With this patch, the XML is correct:

# virsh nodedev-dumpxml pci_0000_09_00_0
<device>
  <name>pci_0000_09_00_0</name>
  <parent>pci_0000_00_1c_0</parent>
  <driver>
    <name>vxge</name>
  </driver>
  <capability type='pci'>
    <domain>0</domain>
    <bus>9</bus>
    <slot>0</slot>
    <function>0</function>
    <product id='0x5833'>X3100 Series 10 Gigabit Ethernet PCIe</product>
    <vendor id='0x17d5'>Neterion Inc.</vendor>
    <capability type='virt_functions'>
      <address domain='0x0000' bus='0x0a' slot='0x00' function='0x1'/>
      <address domain='0x0000' bus='0x0a' slot='0x00' function='0x2'/>
      <address domain='0x0000' bus='0x0a' slot='0x00' function='0x3'/>
    </capability>
  </capability>
</device>

# virsh nodedev-dumpxml pci_0000_0a_00_1
<device>
  <name>pci_0000_0a_00_1</name>
  <parent>pci_0000_00_1c_0</parent>
  <driver>
    <name>vxge</name>
  </driver>
  <capability type='pci'>
    <domain>0</domain>
    <bus>10</bus>
    <slot>0</slot>
    <function>1</function>
    <product id='0x5833'>X3100 Series 10 Gigabit Ethernet PCIe</product>
    <vendor id='0x17d5'>Neterion Inc.</vendor>
    <capability type='phys_function'>
      <address domain='0x0000' bus='0x09' slot='0x00' function='0x0'/>
    </capability>
  </capability>
</device>

Cc: Dave Allan <dallan@redhat.com>
Signed-off-by: Chris Wright <chrisw@redhat.com>
2011-01-03 09:05:10 -07:00
Jean-Baptiste Rouault
966a1bfe22 Create file in virFileWriteStr() if it doesn't exist
This patch adds a mode_t parameter to virFileWriteStr().
If mode is different from 0, virFileWriteStr() will try
to create the file if it doesn't exist.

* src/util/util.h (virFileWriteStr): Alter signature.
* src/util/util.c (virFileWriteStr): Allow file creation.
* src/network/bridge_driver.c (networkEnableIpForwarding)
(networkDisableIPV6): Adjust clients.
* src/node_device/node_device_driver.c
(nodeDeviceVportCreateDelete): Likewise.
* src/util/cgroup.c (virCgroupSetValueStr): Likewise.
* src/util/pci.c (pciBindDeviceToStub, pciUnBindDeviceFromStub):
Likewise.
2010-12-03 08:08:22 -07:00
Stefan Berger
60ae1c34ad bye to close(), welcome to VIR_(FORCE_)CLOSE()
Using automated replacement with sed and editing I have now replaced all
occurrences of close() with VIR_(FORCE_)CLOSE() except for one, of
course. Some replacements were straight forward, others I needed to pay
attention. I hope I payed attention in all the right places... Please
have a look. This should have at least solved one more double-close
error.
2010-11-09 15:48:48 -05:00
Guido Günther
94f232bb9b Don't fail on missing D-Bus
We don't fail when we can't contact HAL so we shouldn't fail if we can't
contact D-Bus either.
2010-10-13 14:47:19 +02:00
Eric Blake
9ba934c640 build: fix compiler warning
node_device/node_device_driver.c: In function 'nodeDeviceVportCreateDelete':
node_device/node_device_driver.c:423: error: implicit declaration of function 'stat' [-Wimplicit-function-declaration]

* src/node_device/node_device_driver.c (includes): Add <sys/stat.h>.
2010-08-18 13:46:09 -06:00
Dave Allan
b31ef77313 nodedev: Fix sysfs paths for vport operations
Some kernels, such as the one used in RHEL-5, have vport_create and
vport_delete operation files in /sys/class/scsi_host/hostN directory
instead of /sys/class/fc_host/hostN. Let's check both paths for
compatibility reasons.

This also removes unnecessary '/' characters from sysfs paths containing
LINUX_SYSFS_FC_HOST_PREFIX.
2010-08-18 17:32:31 +02:00
Cole Robinson
ed005221ff udev: Parse PCI devices even if libpciaccess fails
We only use libpciaccess for resolving device product/vendor. If
initializing the library fails (say if using qemu:///session), don't
warn so loudly, and carry on as usual.
2010-07-02 10:30:29 -04:00
David Allan
e7f3bad46e Fix leaks in udev device add/remove v3
* This patch is a modification of a patch submitted by Nigel Jones.
  It fixes several memory leaks on device addition/removal:

1. Free the virNodeDeviceDefPtr in udevAddOneDevice if the return
   value is non-zero

2. Always release the node device reference after the device has been
   processed.

* Refactored for better readability per the suggestion of clalance
2010-06-08 14:46:29 -04:00
Daniel P. Berrange
345ff369e5 Prefer UDEV to HAL drivers if both a compiled
HAL is deprecated and UDEV is the future. Thus if both
options are compiled, we should prefer use of UDEV over
HAL

* src/node_device/node_device_driver.c: Switch init
  order to try UDEV first, then HAL
2010-06-08 15:15:02 +01:00
David Allan
2874a683e9 Update nodedev scsi_host data before use
* It appears that the udev event for HBA creation arrives before the
  associated sysfs data is fully populated, resulting in bogus data
  for the nodedev entry until the entry is refreshed.  This problem is
  particularly troublesome when creating NPIV vHBAs because it results
  in libvirt failing to find the newly created adapter and waiting for
  the full timeout period before erroneously failing the create
  operation.  This patch forces an update before any attempt to use
  any scsi_host nodedev entry.
2010-06-03 10:54:39 -04:00
David Allan
d3e43bad98 Fix device destroy return value
* Set return value in error cases
* Clarify error message when parent device is not vport capable
2010-06-03 10:54:29 -04:00
David Allan
8b46a7bbdb Improve nodedev parent/child relationships
* If a nodedev has a parent that we don't want to display, we should
  continue walking up the udev device tree to see if any of its
  earlier ancestors are devices that we display.  It makes the tree
  much nicer looking than having a whole lot of devices hanging off
  the root node.
2010-05-28 12:48:45 -04:00
David Allan
07f6c3a95f v2 of Cole's wlan support
* Incorporated Jim's feedback (v1 & v2)

* Moved case of DEVTYPE == "wlan" up as it's definitive that we have a network interface.

* Made comment more detailed about the wired case to explain better
  how it differentiates between wired network interfaces and USB
  devices.
2010-05-27 13:20:04 -04:00
Daniel P. Berrange
60881161ea Expose a host UUID in the capabilities XML
Allow for a host UUID in the capabilities XML. Local drivers
will initialize this from the SMBIOS data. If a sanity check
shows SMBIOS uuid is invalid, allow an override from the
libvirtd.conf configuration file

* daemon/libvirtd.c, daemon/libvirtd.conf: Support a host_uuid
  configuration option
* docs/schemas/capability.rng: Add optional host uuid field
* src/conf/capabilities.c, src/conf/capabilities.h: Include
  host UUID in XML
* src/libvirt_private.syms: Export new uuid.h functions
* src/lxc/lxc_conf.c, src/qemu/qemu_driver.c,
  src/uml/uml_conf.c: Set host UUID in capabilities
* src/util/uuid.c, src/util/uuid.h: Support for host UUIDs
* src/node_device/node_device_udev.c: Use the host UUID functions
* tests/confdata/libvirtd.conf, tests/confdata/libvirtd.out: Add
  new host_uuid config option to test
2010-05-25 17:09:18 +01:00
Jim Meyering
d6f9cf4222 maint: don't mark VIR_DEBUG or VIR_DEBUG0 diagnostics for translation
Run this command:
  git grep -l VIR_DEBUG|xargs perl -pi -e \
    's/(VIR_DEBUG0?)\s*\(_\((".*?")\)/$1($2/'
2010-05-20 21:36:26 +02:00
Jim Meyering
82a3c81d8c maint: VIR_ERROR/VIR_ERROR0: mark up the remaining ones manually
Handle concatenated strings manually.
2010-05-20 21:36:25 +02:00
Jim Meyering
2d3208029b maint: mark translatable string args of VIR_ERROR
Run this:
  git grep -l 'VIR_ERROR\s*("'|xargs perl -pi -e \
    's/(VIR_ERROR)\s*\((".*?"),/$1(_($2),/'
2010-05-20 21:36:25 +02:00
Jim Meyering
8d63d82e5c maint: mark translatable string args of VIR_ERROR0
Run this:
  git grep -l 'VIR_ERROR0\s*("'|xargs perl -pi -e \
    's/(VIR_ERROR0)\s*\((".*?")\)/$1(_($2))/'
2010-05-20 21:36:25 +02:00
Jim Meyering
a986892e61 maint: add more free-like functions to the list and deal with fallout
* cfg.mk (useless_free_options): Add many vir*Free* function names,
and then remove the useless if-before-free tests exposed by running
make syntax-check.
* src/conf/interface_conf.c (virInterfaceDefFree): Remove useless "if".
(virInterfaceAssignDef): Likewise.
* src/conf/network_conf.c (virNetworkAssignDef): Likewise.
* src/conf/storage_conf.c (virStoragePoolObjAssignDef): Likewise.
* src/node_device/node_device_hal.c (dev_create): Likewise.
* src/security/virt-aa-helper.c (vahDeinit): Likewise.
* src/test/test_driver.c (testNodeDeviceCreateXML): Likewise.
* src/util/conf.c (virConfSetValue): Likewise.
2010-05-18 07:53:42 +02:00
Cole Robinson
74c7a3463d node_device: udev: Fix PCI product/vendor swappage
Product and vendor values were swapped in the XML, which made virt-manager
PCI device listing kinda useless.
2010-05-11 16:55:56 -04:00
Chris Lalancette
18b3096c40 Fix a memory leak in the node_device_udev code
We were over-writing a pointer without freeing it in
case of a disk device, leading to a memory leak.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2010-04-29 09:15:54 -04:00
Klaus Ethgen
75d88455f5 The base used for conversion of USB values should be 16 not 10.
Signed-off-by: Guido Günther <agx@sigxcpu.org>
2010-04-27 19:47:54 +02:00
Matthias Bolte
051df19e0e Replace printf with logging macros 2010-04-17 15:02:28 +02:00
Matthias Bolte
49411f029a Remove unnecessary trailing \n in log messages 2010-04-06 01:41:58 +02:00
Eric Blake
0a33633579 maint: make Red Hat copyright notices consistent
Spell out 'Red Hat, Inc.':
 git grep -i 'Copyright.*Red Hat' | grep -v Inc

Include (C) consistently:
 git grep -i 'Copyright [^(].*Red Hat'

* src/lxc/lxc_container.c: Update copyright formatting.
* src/node_device/node_device_udev.c: Likewise.
* src/node_device/node_device_udev.h: Likewise.
* src/xen/xend_internal.h: Likewise.
* src/xen/xm_internal.c: Likewise.
* src/xen/xm_internal.h: Likewise.
* tests/xmconfigtest.c: Likewise.
* tests/object-locking.ml: Likewise.
* tools/virt-pki-validate.in: Likewise.
* tools/virt-xml-validate.in: Likewise.
2010-03-18 16:48:05 +01:00
Ed Swierk
e29439bd14 Allow devices without a parent
* Allow devices without parent links to be created and set their parent to the root "computer" node
2010-03-10 17:25:54 -05:00
David Allan
b978f31a93 Free resources on error in udev startup
* The udev driver didn't properly free resources that it allocates when setting up the 'computer' device in the error case.
2010-03-10 11:38:37 -05:00
Eric Blake
36d8e7d8d7 build: consistently indent preprocessor directives
* global: patch created by running:
for f in $(git ls-files '*.[ch]') ; do
    cppi $f > $f.t && mv $f.t $f
done
2010-03-09 19:22:28 +01:00
Eric Blake
84ef5aecca build: silence coverity warning in node_device
All other uses of get_str_prop in this file that ignored
failure explicitly cast to void.

* src/node_device/node_device_hal.c (dev_create): Silence coverity
warning.
2010-03-02 16:12:48 +01:00
Jim Meyering
a3301b71f6 udevEnumerateDevices: remove dead code
* src/node_device/node_device_udev.c (udevEnumerateDevices): Remove
unnecessary call to udev_list_entry_get_name.
2010-03-01 16:29:42 +01:00
Jim Meyering
081fd746f0 get_virtual_functions_linux: would mistakenly always return zero
* src/node_device/node_device_linux_sysfs.c(get_virtual_functions_linux):
Return "ret", rather than always returning 0.
2010-02-18 16:22:53 +01:00
Daniel P. Berrange
99edc443e9 Remove virConnectPtr from all node device XML APIs
The virConnectPtr is no longer required for error reporting since
that is recorded in a thread local. Remove use of virConnectPtr
from all APIs in node_device_conf.{h,c} and update all callers to
match
2010-02-10 13:32:01 +00:00
Matthias Bolte
f972dc2d5c Remove conn parameter from util functions
It was used for error reporting only.
2010-02-09 01:04:54 +01:00
Matthias Bolte
a5ab900d26 Remove conn parameter from virReportSystemError 2010-02-09 01:04:54 +01:00
Matthias Bolte
8ce5e2c1ab Remove conn parameter from virReportOOMError 2010-02-09 01:04:54 +01:00
David Allan
8d42b9b4e8 Fix locking for udev device add/remove
The original udev node device backend neglected to lock the driverState
struct containing the device list when adding and removing devices
* src/node_device/node_device_udev.c: add necessary locks in
  udevRemoveOneDevice() and udevAddOneDevice()
2010-02-03 16:56:33 +01:00
Matthias Bolte
33e25a3984 udev: Don't let strtoul parse USB busnum and devnum as octal
udevGetUintProperty was called with base set to 0 for busnum and devnum.
With base 0 strtoul parses the number as octal if it start with a 0. But
busnum and devnum are decimal and udev returns them padded with leading
zeros. So strtoul parses them as octal. This works for certain decimal
values like 001-007, but fails for values like 008.

Change udevProcessUSBDevice to use base 10 for busnum and devnum.
2010-02-02 09:54:29 +01:00
Jim Meyering
b74aadb3e5 portability to non-glibc: don't use realpath(..., NULL)
it causes a NULL-dereference on some systems like Solaris 10.
* src/node_device/node_device_linux_sysfs.c. Include <stdlib.h>.
(get_sriov_function): Use canonicalize_file_name, not realpath.
* bootstrap (modules): Add canonicalize-lgpl.
2010-01-27 13:39:46 +01:00
Matthias Bolte
227f26afdb udev: Set the state driver name 2010-01-26 21:23:18 +01:00
Matthias Bolte
d115ed59e0 udev: Remove event handle on shutdown
This fixes a segfault when the event handler is called after shutdown
when the global driver state is NULL again.

Also fix a locking issue in an error path.
2010-01-26 21:23:18 +01:00
Daniel P. Berrange
a5a46c6fc2 Add some missing include files which break build in certain platforms
Two files were using functions from <sys/stat.h> but not including
in. Most of the time they got this automatically via another header,
but certain build flag combinations can reveal the problem

* src/lxc/lxc_container.c, src/node_device/node_device_linux_sysfs.c:
  Add <sys/stat.h>
2010-01-25 17:08:37 +00:00
David Allan
2dccf5ef07 Corrected log level of WWN path message
* src/node_device/node_device_linux_sysfs.c: open_wwn_file() the
  VIR_ERROR resllay should be just a VIR_DEBUG
2010-01-21 15:55:13 +01:00
Daniel Veillard
e5df24a11c Fix an error when looking for devices in syspath
* src/node_device/node_device_udev.c: udevSetupSystemDev() only print the
  error message if lookup failed in both DMI_DEVPATH and DMI_DEVPATH_FALLBACK
2010-01-21 15:45:44 +01:00
Jim Meyering
21c84e00d3 clean-up: remove unnecessary closedir call
* src/node_device/node_device_linux_sysfs.c (get_virtual_functions_linux):
Remove unnecessary closedir.  Spotted by Dave Allan.
2010-01-20 21:57:34 +01:00
Jim Meyering
2355fce3ae node_device_linux_sysfs.c: avoid opendir/fd leak on error path
* src/node_device/node_device_linux_sysfs.c(get_virtual_functions_linux):
Don't leak a DIR buffer and file descriptor on error path.
2010-01-20 21:52:51 +01:00
Jiri Denemark
4bc3bd7b18 Remove superfluous new lines from messages
I noticed some debug messages are printed with an empty lines after
them. This patch removes these empty lines from all invocations of the
following macros:
    VIR_DEBUG
    VIR_DEBUG0
    VIR_ERROR
    VIR_ERROR0
    VIR_INFO
    VIR_WARN
    VIR_WARN0

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2010-01-19 17:30:41 +01:00
Cole Robinson
d0b97e820c node_device: udev: Fix memory leak
We are setting the same property two different ways without
free'ing in between. Just drop the second assignment.
2010-01-13 07:02:19 -05:00
Cole Robinson
c198f51a10 node_device: udev: Enumerate floppy devices
There are quite a few differences between how udev exposes legacy
and USB floppy devs, but this patch takes care of both variants.
2010-01-13 07:02:18 -05:00
Cole Robinson
3238081efd node_device: udev: Use base 16 for product/vendor
udev doesn't prefix USB product/vendor info with '0x', so the
strtol conversions were wrong for the product field (vendor already
set the correct base). Make the change for PCI product/vendor as
well to be safe.

This fixes USB device assignment via virt-manager.
2010-01-13 07:02:18 -05:00
Guido Günther
4c81b0fdc5 Also look for dmi information in /sys/class
older kernels such as 2.6.26 have it there.
2010-01-11 12:49:35 +01:00
Matthias Bolte
338e7c3c8d Don't free an uninitalized pointer in update_driver_name()
This invalid free results in heap corruption. Some symptoms I saw
because of this were libvirtd crashing and virt-manager hanging
while trying to enumerate devices.
2010-01-07 01:38:19 +01:00
Jim Meyering
b148318981 node_device_driver.c: don't write beyond EOB for 4K-byte symlink
* src/node_device/node_device_driver.c (update_driver_name): The
previous code would write one byte beyond the end of the 4KiB
stack buffer when presented with a symlink value of exactly that
length (very unlikely).  Remove the automatic buffer and use
virFileResolveLink in place of readlink.  Suggested by Daniel Veillard.
2009-12-14 16:26:38 +01:00
Jiri Denemark
a645c8f0fd Fix use of virEventAddHandleImpl()
src/node_device/node_device_udev.c was using a function available only
on the daemon code, fix this and use the function available globally

* src/node_device/node_device_udev.c: replace use of virEventAddHandleImpl
  by virEventAddHandle
2009-12-14 16:09:01 +01:00
Cole Robinson
deae2bb57f nodedev: Add removable storage 'media_label' prop
Provides the CDROM label for current media. Only implemented for the
udev backend.
2009-12-14 14:58:23 +01:00
Dave Allan
a010165d27 expose SR IOV physical/virtual function relationships
exposes the relationships between physical
and virtual functions on SR IOV capable devices.
2009-12-14 14:44:12 +01:00
Matthias Bolte
1b9d074493 Add virBufferFreeAndReset() and replace free()
Replace free(virBufferContentAndReset()) with virBufferFreeAndReset().
Update documentation and replace all remaining calls to free() with
calls to VIR_FREE(). Also add missing calls to virBufferFreeAndReset()
and virReportOOMError() in OOM error cases.
2009-12-10 00:00:50 +01:00
Guido Günther
1f60411686 udev_device_get_devpath might return NULL
Fix crash on strdup in that case.
2009-12-08 12:01:27 +01:00
Dave Allan
f2f656d426 Removing devicePath member from dev struct
I realized that I inadvertently added a member to the def struct to
contain each device's sysfs path when there was an existing member in the
dev struct for "OS specific path to device metadat, eg sysfs"  Since the
udev backend needs to record the sysfs path while it's in the process of
creating the device, before the dev struct gets allocated, I chose to
remove the member from the dev struct.

* src/conf/node_device_conf.c src/conf/node_device_conf.h
  src/node_device/node_device_driver.c src/node_device/node_device_hal.c
  src/node_device/node_device_udev.c: remove devicePath from the
  structure and use def->sysfs_path instead
2009-11-19 16:02:18 +01:00
Dave Allan
0fe553744a report OOM in two places in node_device_driver.c
* src/node_device/node_device_driver.c: two places where not calling
  virReportOOMError after strdup failure
2009-11-19 15:44:00 +01:00
Daniel P. Berrange
7bed630dfb Don't return fatal error in HAL driver init if HAL isn't running
The HAL driver returns a fatal error code in the case where HAL
is not running. This causes the entire libvirtd daemon to quit
which isn't desirable. Instead it should simply disable the HAL
driver

* src/node_device/node_device_hal.c: Quietly disable HAL if it is
  not running
2009-11-13 15:10:55 +00:00
Daniel P. Berrange
fd2090cdb9 Fix race condition in HAL driver startup
There is a race condition in HAL driver startup where the callback
can get triggered before we have finished startup. This then causes
a deadlock in the driver.

* src/node_device/node_device_hal.c: RElease driver lock before
  registering DBus callbacks
2009-11-13 11:50:10 +00:00
David Allan
7023663873 Add translation of PCI vendor and product IDs
uses libpciaccess to provide human readable names for PCI vendor and
device IDs
* configure.in: add a requirement for libpciaccess >= 0.10.0
* src/Makefile.am: add the associated compilation flags and link
* src/node_device/node_device_udev.c: lookup the libpciaccess for
  vendor name and product name based on their ids
2009-11-12 23:22:00 +01:00
David Allan
e99fb5ed9d Remove DevKit node device backend
* configure.in src/Makefile.am: remove the configuration check and
  build instructions
* src/node_device/node_device_devkit.c: removed the module
* src/node_device/node_device_driver.c src/node_device/node_device_driver.h:
  removed references to the old backend
2009-11-12 23:09:24 +01:00
David Allan
db19834a0a Add scsi_target device type
* src/conf/node_device_conf.h src/conf/node_device_conf.c: add specific
  support for SCSI target in node device capabilities
* src/node_device/node_device_udev.c: add some extra detection code
  when handling udev output
2009-11-12 23:03:47 +01:00
David Allan
3ad6dcf3dc Implement a node device backend using libudev
* configure.in: add new --with-udev, disabled by default, and requiring
  libudev > 145
* src/node_device/node_device_udev.c src/node_device/node_device_udev.h:
  the new node device backend
* src/node_device/node_device_linux_sysfs.c: moved node_device_hal_linux.c
  to a better file name
* src/conf/node_device_conf.c src/conf/node_device_conf.h: add a couple
  of fields in node device definitions, and an API to look them up,
  remove a couple of unused fields from previous patch.
* src/node_device/node_device_driver.c src/node_device/node_device_driver.h:
  plug the new driver
* po/POTFILES.in src/Makefile.am src/libvirt_private.syms: add the new
  files and symbols
* src/util/util.h src/util/util.c: add a new convenience macro
  virBuildPath and virBuildPathInternal() function
2009-11-12 22:48:24 +01:00
Daniel Veillard
52147a0452 Various fixes following a code review
* src/libvirt.c src/lxc/lxc_conf.c src/lxc/lxc_container.c
  src/lxc/lxc_controller.c src/node_device/node_device_hal.c
  src/openvz/openvz_conf.c src/qemu/qemu_driver.c
  src/qemu/qemu_monitor_text.c src/remote/remote_driver.c
  src/storage/storage_backend_disk.c src/storage/storage_driver.c
  src/util/logging.c src/xen/sexpr.c src/xen/xend_internal.c
  src/xen/xm_internal.c: Steve Grubb <sgrubb@redhat.com> sent a code
  review and those are the fixes correcting the problems
2009-11-10 17:48:12 +01:00
Daniel P. Berrange
979218cdd9 Fix return value in virStateInitialize impl for LXC
The LXC driver was mistakenly returning -1 for lxcStartup()
in scenarios that are not an error. This caused the libvirtd
to quit for unprivileged users. This fixes the return code
of LXC driver, and also adds a "name" field to the virStateDriver
struct and logging to make it easier to find these problems
in the future

* src/driver.h: Add a 'name' field to state driver to allow
  easy identification during failures
* src/libvirt.c: Log name of failed driver for virStateInit
  failures
* src/lxc/lxc_driver.c: Don't return a failure code for
  lxcStartup() if LXC is not available on this host, simply
  disable the driver.
* src/network/bridge_driver.c, src/node_device/node_device_devkit.c,
  src/node_device/node_device_hal.c, src/opennebula/one_driver.c,
  src/qemu/qemu_driver.c, src/remote/remote_driver.c,
  src/secret/secret_driver.c, src/storage/storage_driver.c,
  src/uml/uml_driver.c, src/xen/xen_driver.c: Fill in name
  field in virStateDriver struct
2009-11-02 18:20:14 -05:00
Cole Robinson
9e2fe24518 node device: Break out get_wwns and get_parent_node helpers
These will be used by the test driver, so move them to a shareable space.
2009-10-20 14:17:35 -04:00
Cole Robinson
d686056f62 node device: Fix locking issue in virNodeDeviceDestroy
Certain error paths won't unlock the node device object.
2009-10-20 14:17:34 -04:00
Cole Robinson
6e24ccb266 nodedev: Break out virNodeDeviceHasCap to node_conf
Will be used by test driver node device implementation.

Signed-off-by: Cole Robinson <crobinso@redhat.com>
2009-10-05 14:07:16 -04:00
Cole Robinson
112746cdc5 nodedev: Add locking in nodeNumOfDevices
Signed-off-by: Cole Robinson <crobinso@redhat.com>
2009-10-05 14:07:15 -04:00
Daniel P. Berrange
91b56239e0 Move node device drivers to src/node_device/
* daemon/qemud.c, src/Makefile.am: Update for changed paths
* src/node_device*.{h,c}: Move to src/node_device/
* src/storage/storage_backend.c: Remove bogus import of node_device.c
2009-09-21 14:41:43 +01:00