June 2008 - Devel - libvirt List Archives

[libvirt] [PATCH 3/5]: Fix up the call to iscsiadm --mode session
by Chris Lalancette 17 Jun '08

17 Jun '08

Older versions of iscsiadm didn't support the "-P 0" flag to the "iscsiadm --mode session" command. However, just running "iscsiadm --mode session" seems to work on all version of iscsiadm commands back to FC-6, so just use that. Changes since last time: None Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

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[libvirt] [PATCH 2/5]: Cleanup carriage returns in util.c
by Chris Lalancette 17 Jun '08

17 Jun '08

In src/util.c, virLog is just a wrapper around fprintf(stderr). Make sure to put line breaks at the end of lines that use virLog() (noticed during testing). Changes since last time: None Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

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[libvirt] [PATCH 1/5]: Return exitstatus from virStorageBackendRunProgRegex
by Chris Lalancette 17 Jun '08

17 Jun '08

This patch changes things around so that virStorageBackendRunProgRegex() does *not* virStorageReportError() if the fork()/exec() process it spawned returned a != 0 exit code. Rather, it returns the exitcode in this case, and it is up to the higher level to determine whether this is a fatal error or not. The use case for this change is in the iSCSI stuff; older versions of iscsiadm tools would return a failure when getting the session number, despite the command succeeding. Changes since last time: 1) Fix up whitespace damage Signed-off-by: Chris Lalancette <clalance(a)redhat.com>

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[libvirt] [PATCH 0/5]: Rework iSCSI lun handling
by Chris Lalancette 17 Jun '08

17 Jun '08

These patches are now better tested, so I'm sending them for review again. To recap, these patches: 1) Do minor cleanup of the existing code 2) Fix a bug where we aren't properly finding the LUNs on pre 2.6.24 kernels 3) Fix a bug seen in oVirt where we race between libvirtd scanning the sysfs path and udev actually making the sysfs path in the first place 4) Further lessen our dependence on direct calls to iscsiadm, in case they change the output in the future. Changes since last time include: 1) Fixing the 0th LUN problem as pointed out by Stefan de Konink. We now use a sysfs file to determine whether this is a valid LUN for us to have. 2) Fix all my whitespace damage 3) Small cleanups based on feedback from the list. Also, I'm putting a build through koji, available here: http://koji.fedoraproject.org/koji/taskinfo?taskID=663583 Chris Lalancette

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[libvirt] [PATCH] Pass syntax check for block devices to XenD.
by Hiroyuki Kaguchi 17 Jun '08

17 Jun '08

Hi, libvirt doesn't pass disk information that the device type isn't specified to XenD and doesn't show the error message either. However, the error message should be displayed, and XenD should show it. On this account, I change libvirt that libvirt passes the disk information that the device type isn't specified to XenD and XenD shows error message. The related patch: After Xen Cset17617, XenD check the syntax of the device type of the disk information. Thanks, Signed-off-by: Hiroyuki Kaguchi <fj7025cf(a)aa.jp.fujitsu.com> Index: src/xm_internal.c =================================================================== RCS file: /data/cvs/libvirt/src/xm_internal.c,v retrieving revision 1.79 diff -u -p -r1.79 xm_internal.c --- src/xm_internal.c 29 May 2008 19:20:23 -0000 1.79 +++ src/xm_internal.c 3 Jun 2008 07:48:02 -0000 @@ -767,12 +767,10 @@ char *xenXMDomainFormatXML(virConnectPtr if (!src[0]) { strcpy(drvName, "phy"); tmp = &src[0]; - } else if (!(tmp = strchr(src, ':')) || !tmp[0]) { - goto skipdisk; - } else { - strncpy(drvName, src, (tmp-src)); - drvName[tmp-src] = '\0'; - } + } else if (tmp = strchr(src, ':')) { + strncpy(drvName, src, (tmp-src)); + drvName[tmp-src] = '\0'; + } /* And the source driver sub-type */ if (STRPREFIX(drvName, "tap")) { @@ -782,7 +780,7 @@ char *xenXMDomainFormatXML(virConnectPtr memmove(src, src+(tmp1-src)+1, strlen(src)-(tmp1-src)); } else { drvType[0] = '\0'; - if (src[0]) + if (src[0] && tmp) memmove(src, src+(tmp-src)+1, strlen(src)-(tmp-src)); }

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[libvirt] cannot compile libvirt on Suse 10
by Dmitri Fedorov 16 Jun '08

16 Jun '08

Hi guys, I cannot compile libvirt on Suse 10 SP1, xen_unified.c gives error in the xen/xen.h include, lines 579-582, where DEFINE_XEN_GUEST_HANDLE(uint8_t) etc.are. The error says "expected '=', ',', ';', 'asm' or '__attribite'. Any idea what that is or any hint what I am missing please? Thanks a lot in advance. Dmitri

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[libvirt] libvirt+avahi domain publication daemon / webhandler
by Stefan de Konink 16 Jun '08

16 Jun '08

Hi, As notified before I am working on a daemon that publishes domains and looking in the close future state changes. I have implemented this daemon so my webserver handler is able to figure out where to connect to in the network upon a request. In my opinion this functionality should be in libvirtd, but people highly differ on this opinion. Currently it is an external program that polls with an interval of 10 seconds. This webserver has access to all certificates to connect to the remote boxes. And authentication can be based on HTTP_auth, thus also implement specific vm/functions to be accessed. Basically: GET /libvirt/user/vm/virDomainGetID Will look up user_vm using avahi, if not found, result in a 404. If the domain is found the result is returned in the body. POST /libvirt/user/vm/virDomainAttachDevice <disk type='file'> <driver name="tap" type="aio"> <source file='/var/lib/xen/images/fv0'/> <target dev='hda' bus='ide'/> </disk> Will look up user_vm using avahi, if not found, result in a 404. If the domain is found the command is executed using the post body. And the result value is put in the return body. If anyone is interested in working on this or has comments shoot :) Stefan

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[libvirt] FYI: Major driver re-factoring imminent...
by Daniel P. Berrange 16 Jun '08

16 Jun '08

This is a quick FYI to say that I've started working on the plan to provide a single unified XML parser and generator for all hypervisor drivers, in addition to the virtual network drivers. This is going to cause major churn in the XML routines for xm_internal.c, xml.c, xend_internal.c, test.c, qemu_conf.c and a major fixup to the entire of the qemu_driver.c, and then later in the XML routines for the openvz_conf.c and lxc_conf.c drivers. So if you have any plans to do non-trivial work in the area of XML parsers please send a message to the list before hand so we can co-ordinate. Minor additions / bugfixes are fine to send - I can merge them easily. I currently have the QEMU and test drivers ported and test suite passing, and now working on the Xen drivers. Once the Xen driver is working I'll post the patches for review. Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|

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[libvirt] Fix qemudParseVMDeviceDef() to check for proper network device tag name
by Kaitlin Rupert 13 Jun '08

13 Jun '08

Is it too late to get this change in? Instead of "net", the tag name should be "interface". Previously, attempting to attach a network device to a KVM guest would return: libvir: QEMU error : XML description for unknown device type is not well formed or invalid error: Failed to attach device from attach-disk.xml With this fix, it returns: libvir: QEMU error test_domain: this function is not supported by the hypervisor: only CDROM disk devices can be attached libvir: QEMU error : this function is not supported by the hypervisor: only CDROM disk devices can be attached error: Failed to attach device from attach-disk.xml Index: src/qemu_conf.c =================================================================== RCS file: /data/cvs/libvirt/src/qemu_conf.c,v retrieving revision 1.77 diff -u -p -r1.77 qemu_conf.c --- src/qemu_conf.c 12 Jun 2008 10:19:24 -0000 1.77 +++ src/qemu_conf.c 12 Jun 2008 16:17:59 -0000 @@ -2964,7 +2964,7 @@ qemudParseVMDeviceDef(virConnectPtr conn if (xmlStrEqual(node->name, BAD_CAST "disk")) { dev->type = QEMUD_DEVICE_DISK; qemudParseDiskXML(conn, &(dev->data.disk), node); - } else if (xmlStrEqual(node->name, BAD_CAST "net")) { + } else if (xmlStrEqual(node->name, BAD_CAST "interface")) { dev->type = QEMUD_DEVICE_NET; qemudParseInterfaceXML(conn, &(dev->data.net) node); } else if (xmlStrEqual(node->name, BAD_CAST "input")) { -- Kaitlin Rupert IBM Linux Technology Center kaitlin(a)linux.vnet.ibm.com

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[libvirt] where is autogen.sh on libvirt?
by Atsushi SAKAI 13 Jun '08

13 Jun '08

Hi, I am looking thorough the package on ftp://libvirt.org/libvirt/ but cannot find autogen.sh files on 0.4.3 and snapshot package. Is there any reason? Of course cvs package have autogen.sh. Thanks Atsushi SAKAI

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