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[libvirt] [libvirt-csharp][PATCH] add new sample "virEventRegisterImpl"
by arnaud.champion＠devatom.fr 28 Oct '10

28 Oct '10

?Hi, this patch add a new sample code for Visual Studio and Mono. The sample show how to use domain callbacks via virEventRegisterImpl (he old way, deprecated method for domain events). Regards, Arnaud

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[libvirt] [libvirt-csharp][PATCH] Make examples works on mono compiled in 64 bits, simply the ConnectOpenAuth process, and finalise renaming
by arnaud.champion＠devatom.fr 28 Oct '10

28 Oct '10

?Hi, I have finally find the problem with examples on mono compiled in 64 bits. The problem was the "ToInt32" method of an IntPtr which failed on mono 64 bits (have to use ToInt64 instead). This path solve this problem. Also, I have put marshaling complexity of the ConnectOpenAuth callback in bindings, this make the callback of ConnectOpenAuth more simple to achieve the authentification. In the example, the callback is treated like this : private static int AuthCallback(ref ConnectCredential[] creds, IntPtr cbdata) { AuthData authData = (AuthData)Marshal.PtrToStructure(cbdata, typeof(AuthData)); foreach (ConnectCredential cred in creds) { switch (cred.type) { case ConnectCredentialType.VIR_CRED_AUTHNAME: // Fill the user name cred.Result = authData.user_name; break; case ConnectCredentialType.VIR_CRED_PASSPHRASE: // Fill the password cred.Result = authData.password; break; default: return -1; } } return 0; } The bindings user has no marshaling to do, and believe me, it's simpler. Finally, this patch finalize renaming. Best regards, Arnaud Champion

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[libvirt] Xen: Stream-API or XML-RPC or XenAPI for managedSave, snapshots
by Philipp Hahn 28 Oct '10

28 Oct '10

Hello, for our project I need libvirts "managed save" functionality for Xen-3.4. In my implementation I tried to use Xens 'suspend' and 'resume', which would nicely match, but these two functions are not available throu the legacy streaming API (xend-http-server, xend-unix-server), which libvirt seems to still use. They are available throu the XML-RPC interface and the XenAPI interface, which libvirt doesn't seem to use. Are there any plans to convert libvirt to use one of the newer interfaces? My other option would be to either implement another subdriver for xenUnified*, which would implement domainManagedSave(), domainHasManagedSaveImage() and domainManagedSaveRemove() using XML-RPC (or XenAPI), or to implement suspend() and resume() in Xend. I also will need to look at snapshots next: Has someone already investigated adding snapshot support to Xen(-3.4)? Sincerely Philipp Hahn -- Philipp Hahn Open Source Software Engineer hahn(a)univention.de Univention GmbH Linux for Your Business fon: +49 421 22 232- 0 Mary-Somerville-Str.1 28359 Bremen fax: +49 421 22 232-99 http://www.univention.de Besuchen Sie uns auf unseren nächsten Veranstaltungen: 26. - 28.10.: IT & Business 2010 in Stuttgart 27. - 28.10.: MODERNER STAAT 2010 in Berlin http://www.univention.de/univention/termine/veranstaltungstermin/

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[libvirt] dommemstat won't work
by 黄亮 27 Oct '10

27 Oct '10

Hi all. I try "virsh dommemstat <domain>" and it returns as follows :Failed to get memory statistics for domain vm_unfw :this function is not supported by the connection driver: virDomainMemoryStats So what may be the problem? I'm using CentOS release 5.5. Updated it's libvirt from 0.6.3 to 0.8.4 through "./configure; make; make install" procedure, and ran "autobuild.sh" in the directory of libvirt-0.8.4. Using "virsh version", it tells xen api version is 3.0.1, and xm version is 3.3.0 Thanks! 2010-10-27 黄亮

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[libvirt] [PATCH 0/7]: Rewrite all the auditing hooks
by Daniel P. Berrange 27 Oct '10

27 Oct '10

This patch series reverts two previous commits which added auditing hooks to the daemon/remote.c dispatcher code. This is then replaced with hooks added directly to the QEMU driver code. This has the downside that auditing only works for the QEMU driver, but it is unavoidable because the dispatcher code has insufficient information to properly generate audit records. It also handles escaping of strings which contain user supplied arbitrary formatted data. It finishes up by adding auditing of disk/net resources.

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[libvirt] [PATCH] Tell automake to use tar-pax instead of tar-v7 for make dist
by Matthias Bolte 27 Oct '10

27 Oct '10

Commit 66a04090673a5e21700d11bdea0084f1ee870c24 updated the API extention example patch series and added files that results in filenames longer than 99 chars during make dist. This is a problem because automake uses tar with the old v7 format during make dist. The v7 format is limited to 99 chars per filename. Use the newer and unlimited POSIX format instead. --- configure.ac | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/configure.ac b/configure.ac index d942d3c..838dac7 100644 --- a/configure.ac +++ b/configure.ac @@ -6,7 +6,7 @@ AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_HEADERS([config.h]) AC_CONFIG_MACRO_DIR([m4]) dnl Make automake keep quiet about wildcards & other GNUmake-isms -AM_INIT_AUTOMAKE([-Wno-portability]) +AM_INIT_AUTOMAKE([1.9 -Wno-portability tar-pax]) # Use the silent-rules feature when possible. m4_ifndef([AM_SILENT_RULES], [m4_define([AM_SILENT_RULES],[])]) -- 1.7.0.4

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[libvirt] [PATCH] Fix xen API documentation.
by Philipp Hahn 27 Oct '10

27 Oct '10

Add missing 'on'. Change 'dom' to 'domain' as used in xenDaemonDomainBlockPeek() Signed-off-by: Philipp Hahn <hahn(a)univention.de> --- src/xen/xend_internal.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-)

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[libvirt] Gtk# help
by arnaud.champion＠devatom.fr 27 Oct '10

27 Oct '10

?Hi, As you maybe have seen in my csharp sample code, I'm not an expert with Gtk# under mono, it's really different from windows form. Can anyone help me with Gtk# to make the bindings samples better ? Arnaud

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[libvirt] Libvirt.org "Docs" page (top level)
by Justin Clift 27 Oct '10

27 Oct '10

Hi us, The top level libvir.org Docs page is blank: http://libvirt.org/docs.html Looks like it's only purpose is to show the menu on the left hand side, where people can click documentation headings. The completely empty page content though, kind of looks "wrong", so I'm thinking we should fit it with something. Initial thought is to have an autogenerated list of all the docs pages, expanded out. Pretty much a table of contents kind of thing. But open to suggestions too if someone has better ideas? :) Regards and best wishes, Justin Clift

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Re: [libvirt] How to start a defined domain
by 黄亮 27 Oct '10

27 Oct '10

yes, and it works now, both "virsh start vm01" and my program. A lot of thanks to you. But there is still something disturbing. I'm using putty on windows xp connecting to another computer running CentOS which has xen and libvirt on it. After I type "virsh start vm01" or run my program, the terminal freezes, I can't input anything to terminal. And then the network connection to server is closed. Have you been into this? 2010-10-27 黄亮发件人： Osier 发送时间： 2010-10-27 11:25:54 收件人：黄亮抄送：主题： Re: [libvirt] How to start a defined domain ----- "黄亮" <lancerhuang(a)163.com> wrote: > > > nope. > > "vm01" can be seen after I started it using "xm create vm01". > But, if I shut it down using "xm shutdown vm01", it can't be seen > using "virsh list --all" > > I assume that, "vm01" only have a xm config file stored in /etc/xen/, > and libvirt or virsh need a XML style config file. So I can't start > vm01 using "virsh start vm01" nor can I see it using "virsh list > --all". > > Is it like this? Do correct me if I'm wrong :-) so it becomes clear now, I guess you didn't 'define' the guest from libvirt side, that means'vm01' is not a persistent domain, so after you shutdown the vm01 using xm, yes, libvirt can't see it anymore. actually even if after you use "virsh destroy" or "virsh shutdown", libvirt can't see it either.. :-) the way to define a domain to be persistent,(assume the domain is running) # virsh dumpxml vm01 > vm01.xml # virsh define vm01.xml then think you can start it via: # virsh start vm01 - Osier > > 2010-10-27 > > 黄亮 > > 发件人： Osier > 发送时间： 2010-10-27 10:56:54 > 收件人：黄亮 > 抄送： > 主题： Re: [libvirt] How to start a defined domain > > > > ----- "黄亮" <lancerhuang(a)163.com> wrote: > > > > > Oh, yeah, you're right, it's "make uninstall" :-) > > > > after uninstall 0.8.4 and reinstall 0.6.3, it still won't work. > > > > but one thing I should mention is that while using "virsh start > vm01", > > it reports the same error, saying can't find domain "vm01" with > > "xenUnifiedDomainLookupByName ". > > So I think maybe there is something I'm missing in define a domain. > > > > Would you give me some hints so I can see where I go wrong? Really > > appreciated > > > > ah, well, so let us check lower, can you see the guest "vm01" by > "virsh list --all"? > > - Osier > > > > 2010-10-27 > > > > 黄亮 > > > > 发件人： Osier > > 发送时间： 2010-10-26 22:29:40 > > 收件人：黄亮 > > 抄送： libvir-list > > 主题： Re: [libvirt] How to start a defined domain > > > > > > > > ----- "黄亮" <lancerhuang(a)163.com> wrote: > > > > > > > > Well, after "make clean", I run the compiled start.c, still won't > > > work. > > > > "make clean" won't uninstall the installed stuffs, use "make > > uninstall" > > instead, or you just made a typo? :-) > > > > after that, suggest re-installing 0.6.3 if you are not sure if it's > > injured. > > > > - Osier > > > > > And I forget to metion, an error msg is shown: > > > > > > libvir: Xen error : Domain not found: xenUnifiedDomainLookupByName > > > > > > is that means I missed something? > > > > > > > > > 2010-10-26 > > > > > > 黄亮 > > > > > > 发件人： Osier > > > 发送时间： 2010-10-26 18:05:46 > > > 收件人：黄亮 > > > 抄送： > > > 主题： Re: [libvirt] How to start a defined domain > > > > > > > > > > > > ----- "黄亮" <lancerhuang(a)163.com> wrote: > > > > > > > > > > > Accroding to your case, it seems I have no need to upgrade > libvirt > > > to > > > > 0.8.4 > > > > Will that work if I erase 0.8.4 using "make clean" and draw back > > to > > > > 0.6.3 ? > > > > > > yep, think so, if you don't need the new features, and 0.6.3 is > > enough > > > for your project requirement.. :-) > > > > > > - Osier > > > > > > > > > > > > > > > > 2010-10-26 > > > > > > > > 黄亮 > > > > > > > > 发件人： Osier > > > > 发送时间： 2010-10-26 17:10:40 > > > > 收件人：黄亮 > > > > 抄送： > > > > 主题： Re: [libvirt] How to start a defined domain > > > > > > > > > > > > > > > > ----- "黄亮" <lancerhuang(a)163.com> wrote: > > > > > > > > > > > > > > Thanks for your reply, Osier. > > > > > > > > > > > > > > > The distro I'm using is CentOS release 5.5 (Final) > > > > > > > > > > I'm not quite sure about the version of libvirt. At first, it > > > seems > > > > to > > > > > be 0.6.3, because /usr/lib64/libvirt.so.0 points to > > > > > /usr/lib64/libvirt.so.0.6.3 > > > > > Then I downloaded the src of libvirt_0.8.4 from offical > website, > > > and > > > > > configure, make, make install. > > > > > But now it show errors when I type "virsh". The error message > > lies > > > > > below: > > > > > > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.8.2' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.1' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.5' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.8.1' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.0' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.2' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.3' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.8.0' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version > > > `LIBVIRT_PRIVATE_0.8.4' > > > > > not found (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.7.7' > not > > > > found > > > > > (required by virsh) > > > > > virsh: /usr/local/lib/libvirt.so.0: version `LIBVIRT_0.6.4' > not > > > > found > > > > > (required by virsh) > > > > > > > > probly you should try to erase the 0.6.3, then compile and > install > > > > libvirt > > > > like: > > > > > > > > # ./configure --prefix=/usr --libdir=/usr/lib64 > > > > # make > > > > # make install > > > > > > > > your test program has no problem on my box. the libvirt on my > box > > > also > > > > is > > > > 0.6.3. > > > > > > > > Regards > > > > > > > > - Osier > > > > > > > > > > As for xen, it is 3.3.2. The full "xm info" message is listed > > > below: > > > > > host : testbed01 > > > > > release : 2.6.18-194.11.4.el5xen > > > > > version : #1 SMP Tue Sep 21 05:40:24 EDT 2010 > > > > > machine : x86_64 > > > > > nr_cpus : 8 > > > > > nr_nodes : 1 > > > > > cores_per_socket : 4 > > > > > threads_per_core : 2 > > > > > cpu_mhz : 2793 > > > > > hw_caps : > > > > > > > > > > > > > > > bfebfbff:28100800:00000000:00000140:0098e3fd:00000000:00000001:00000000 > > > > > virt_caps : hvm > > > > > total_memory : 4055 > > > > > free_memory : 533 > > > > > node_to_cpu : node0:0-7 > > > > > node_to_memory : node0:533 > > > > > xen_major : 3 > > > > > xen_minor : 3 > > > > > xen_extra : .2 > > > > > xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 > > > > > hvm-3.0-x86_32p hvm-3.0-x86_64 > > > > > xen_scheduler : credit > > > > > xen_pagesize : 4096 > > > > > platform_params : virt_start=0xffff800000000000 > > > > > xen_changeset : unavailable > > > > > cc_compiler : gcc version 4.1.2 20080704 (Red Hat 4.1.2-44) > > > > > cc_compile_by : root > > > > > cc_compile_domain : gitco.tld > > > > > cc_compile_date : Tue Aug 18 21:07:28 CEST 2009 > > > > > xend_config_format : 4 > > > > > > > > > > I've write a simple c program to test the api, and it is > listed > > > > below: > > > > > > > > > > 1 // This program aims to test the api which can start the VM > > > > > 2 > > > > > 3 #include "stdio.h" > > > > > 4 #include "stdlib.h" > > > > > 5 #include "libvirt/libvirt.h" > > > > > 6 > > > > > 7 int main(int argc ,char* argv[]) > > > > > 8 { > > > > > 9 virConnectPtr conn; > > > > > 10 conn = virConnectOpen( "xen+tcp://localhost?no_Verify=1" ); > > > > > 11 if( conn == NULL ) > > > > > 12 { > > > > > 13 printf( "Failed to Connect\n" ); > > > > > 14 return 1; > > > > > 15 } > > > > > 16 const char* host = "vm01"; > > > > > 17 virDomainPtr dom; > > > > > 18 dom = virDomainLookupByName( conn, host ); > > > > > 19 if( dom == NULL ) > > > > > 20 { > > > > > 21 printf( "can't find dom\n" ); > > > > > 22 return 1; > > > > > 23 } > > > > > 24 // else > > > > > 25 // { > > > > > 26 // virDomainFree( dom ); > > > > > 27 // virConnectClose( conn ); > > > > > 28 // printf("done\n"); > > > > > 29 // return 0; > > > > > 30 // } > > > > > 31 if( virDomainCreate( dom ) == -1 ) > > > > > 32 { > > > > > 33 printf( "failed to Start\n" ); > > > > > 34 virDomainFree( dom ); > > > > > 35 virConnectClose( conn ); > > > > > 36 return 1; > > > > > 37 } > > > > > 38 else > > > > > 39 { > > > > > 40 printf( "Started\n" ); > > > > > 41 virDomainFree( dom ); > > > > > 42 virConnectClose( conn ); > > > > > 43 return 0; > > > > > 44 } > > > > > 45 } > > > > > > > > > > 2010-10-26 > > > > > > > > > > Lancer > > > > > > > > > > 发件人： Osier > > > > > 发送时间： 2010-10-26 11:35:31 > > > > > 收件人：黄亮 > > > > > 抄送： libvir-list > > > > > 主题： Re: [libvirt] How to start a defined domain > > > > > > > > > > > > > > > > > > > > ----- "黄亮" <lancerhuang(a)163.com> wrote: > > > > > > > > > > > I've create a domain called "vm01" using Virt-Manager, the > GUI > > > > tool. > > > > > > Now I wanna use libvirt api to control the life cycle of > vm01. > > > > > > It went on well with shutdown and reboot, but how to start > it > > > > became > > > > > a > > > > > > problem. > > > > > > > > > > > > I was intended to get the virDomainPtr by using > > > > > virDomainLookupByName > > > > > > api, and then start it using virDomainCreate api. > > > > > > But it turns out that virDomainLookupByName api cannot > return > > a > > > > > > virDomainPtr for a defined but not running domain. > > > > > > > > > > > > > > > > no, it can :-) > > > > > > > > > > If it really doesn't work for you, could you write a simple > > > program > > > > to > > > > > reproduce it? and try to explain what's the version of libvirt > > you > > > > > use, > > > > > on which distro, etc, any helpful info is welcomed. :-) > > > > > > > > > > Thanks > > > > > > > > > > - Osier > > > > > > > > > > > That's my situation, what do you suggest I do now? > > > > > > Thanks in advance. > > > > > > > > > > > > 2010-10-26 > > > > > > > > > > > > Lancer > > > > > > -- > > > > > > libvir-list mailing list > > > > > > libvir-list(a)redhat.com > > > > > > https://www.redhat.com/mailman/listinfo/libvir-list > > > > > > > > > > __________ Information from ESET Smart Security, version of > > virus > > > > > signature database 5562 (20101025) __________ > > > > > > > > > > The message was checked by ESET Smart Security. > > > > > > > > > > http://www.eset.com > > > > > > > > __________ Information from ESET Smart Security, version of > virus > > > > signature database 5562 (20101025) __________ > > > > > > > > The message was checked by ESET Smart Security. > > > > > > > > http://www.eset.com > > > > > > __________ Information from ESET Smart Security, version of virus > > > signature database 5563 (20101026) __________ > > > > > > The message was checked by ESET Smart Security. > > > > > > http://www.eset.com > > > > __________ Information from ESET Smart Security, version of virus > > signature database 5565 (20101026) __________ > > > > The message was checked by ESET Smart Security. > > > > http://www.eset.com > > __________ Information from ESET Smart Security, version of virus > signature database 5566 (20101027) __________ > > The message was checked by ESET Smart Security. > > http://www.eset.com __________ Information from ESET Smart Security, version of virus signature database 5566 (20101027) __________ The message was checked by ESET Smart Security. http://www.eset.com

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