February 2007 - Devel - libvirt List Archives

[Libvir] [patch 0/3] Automatically generate UUIDs in qemud
by Mark McLoughlin 26 Feb '07

26 Feb '07

Hey, We currently require guests and networks to have a UUID defined. This patch automatically generates a UUID if one isn't supplied. This is needed because the default network we install won't have a UUID assigned, since we'll want the UUID to be different on different hosts. Cheers, Mark. --

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[Libvir] PATCH: Don't auto-set VNC port to 5900+domid
by Daniel P. Berrange 26 Feb '07

26 Feb '07

The current code for stuffing the VNC port number into the XML looks in XenStore for the VNC port number, and if it does not find it there falls back to using 5900+domid. This is a problem because it leaves open a race condition where the VNC daemon for a guest may not have started up yet, and so if an app requests the XML at this time it'll get potentially bogus port number info. In the best case there will be nothing listening on the bogus port, in the worst case a completely different domain will be listening on that port. This scenario is described here http://www.redhat.com/archives/et-mgmt-tools/2007-February/msg00115.html The reason we have the 5900+domid rule in there is to support Xen 3.0.2 or earlier, where the port number was never stored in XenStore. For any Xen 3.0.3 or later, we should basically never use the 5900+domid fallback rule. So the attached patch makes it conditional on xendConfigVersion < 2 Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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[Libvir] Logging/auditing incoming connections to libvirtd [repost]
by Richard W.M. Jones 25 Feb '07

25 Feb '07

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Re: [Libvir] [patch 5/9] Add autostart support to virsh
by Daniel P. Berrange 25 Feb '07

25 Feb '07

On Thu, Feb 22, 2007 at 11:04:53AM +0000, Mark McLoughlin wrote: > Add "autostart" and "net-autostart" commands > > Also, cleanup the "list" and "net-list" commands a bit > and add autostart info to them I'm wondering whether we need to think about compatability for the virsh commands. We've previously discussed issues around output format stability but never really came up against the issue until now. My concern would be someone grok'ing the 'virsh list' output and now suddenly getting an extra data item at the end of the line. I think it's probably sufficient to just add the autostart flag display to the 'virsh dominfo' command, and not the 'list' command - its not the kind of data you need to see all that often, so I think we could leave it out of the 'list' command. If we were to extend the output of 'list' I reckon I'd prioritise 'memory' and 'vcpu count' above autostart. Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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Re: [Libvir] [patch 9/9] Implement better error reporting [repost]
by Richard W.M. Jones 23 Feb '07

23 Feb '07

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Re: [Libvir] PATCH: Autodetect QEMU version [repost]
by Richard W.M. Jones 23 Feb '07

23 Feb '07

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Re: [Libvir] [patch 3/3] Add libvirt_qemud init script
by Daniel P. Berrange 23 Feb '07

23 Feb '07

On Fri, Feb 23, 2007 at 12:16:00PM +0000, Mark McLoughlin wrote: > Add a Red Hat style init script, using the service name > libvirt_qemud. I'm wondering about the future where we have Rich's libvirtd to start up too. Perhaps we should call the init script just 'libvirtd' and in the future it can either start both libvirt_qemud & libvirtd or if we merge the two, just start libvirtd. That way we won't have to worry about possible renaming of the init script during an update. That question aside, the patches all look fine to me. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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[Libvir] Remote patch, 2007/02/19
by Richard W.M. Jones 23 Feb '07

23 Feb '07

Just for everyone's information. http://annexia.org/tmp/libvirt-tls-20070219.patch -- Emerging Technologies, Red Hat http://et.redhat.com/~rjones/ 64 Baker Street, London, W1U 7DF Mobile: +44 7866 314 421 "[Negative numbers] darken the very whole doctrines of the equations and make dark of the things which are in their nature excessively obvious and simple" (Francis Maseres FRS, mathematician, 1759)

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[Libvir] __attribute__((constructor)) anyone?
by Richard W.M. Jones 23 Feb '07

23 Feb '07

Would anyone object to a patch using __attribute__((constructor)) throughout libvirt rather than all this if(!initialised) initialise() stuff? Rich. -- Emerging Technologies, Red Hat http://et.redhat.com/~rjones/ 64 Baker Street, London, W1U 7DF Mobile: +44 7866 314 421 "[Negative numbers] darken the very whole doctrines of the equations and make dark of the things which are in their nature excessively obvious and simple" (Francis Maseres FRS, mathematician, 1759)

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[Libvir] [patch 3/3] Add libvirt_qemud init script
by Mark McLoughlin 23 Feb '07

23 Feb '07

Add a Red Hat style init script, using the service name libvirt_qemud. Also add a --with-init-scripts configure argument to allow us to add other flavour init scripts. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/qemud/Makefile.am =================================================================== --- libvirt.orig/qemud/Makefile.am +++ libvirt/qemud/Makefile.am @@ -19,3 +19,24 @@ libvirt_qemud_LDFLAGS = $(LIBXML_LIBS) $ libvirt_qemud_DEPENDENCIES = libvirt_qemud_LDADD = +EXTRA_DIST = libvirt_qemud.init.in + +if LIBVIRT_INIT_SCRIPTS_RED_HAT +libvirt_qemud.init: libvirt_qemud.init.in + sed \ + -e s!\@localstatedir\@!@localstatedir@! \ + -e s!\@sbindir\@!@sbindir@! \ + -e s!\@sysconfdir\@!@sysconfdir@! \ + < $< > $@ + chmod a+x libvirt_qemud.init + +install-exec-local: libvirt_qemud.init + mkdir -p $(DESTDIR)$(sysconfdir)/rc.d/init.d + install -m 0755 $(srcdir)/libvirt_qemud.init $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirt_qemud + +uninstall-local: + rm -f $(DESTDIR)$(sysconfdir)/rc.d/init.d/libvirt_qemud + rmdir $(DESTDIR)$(sysconfdir)/rc.d/init.d || : + +CLEANFILES = libvirt_qemud.init +endif # DBUS_INIT_SCRIPTS_RED_HAT Index: libvirt/qemud/libvirt_qemud.init.in =================================================================== --- /dev/null +++ libvirt/qemud/libvirt_qemud.init.in @@ -0,0 +1,75 @@ +#!/bin/sh + +# libvirt_qemud: QEMU and virtual network management daemon +# +# chkconfig: 345 97 03 +# description: This is a daemon for managing QEMU guest instances +# and libvirt virtual networks +# See http://libvirt.org +# +# processname: libvirt_qemud +# pidfile: @localstatedir@/run/libvirt_qemud.pid +# + +# Sanity checks. +[ -x @sbindir@/libvirt_qemud ] || exit 0 + +# Source function library. +. @sysconfdir@/rc.d/init.d/functions + +SERVICE=libvirt_qemud + +RETVAL=0 + +start() { + echo -n $"Starting $SERVICE daemon: " + daemon $SERVICE --system --daemon + RETVAL=$? + echo + [ $RETVAL -eq 0 ] && touch @localstatedir@/lock/subsys/$SERVICE +} + +stop() { + echo -n $"Stopping $SERVICE daemon: " + + killproc $SERVICE -TERM + RETVAL=$? + echo + if [ $RETVAL -eq 0 ]; then + rm -f @localstatedir@/lock/subsys/$SERVICE + rm -f @localstatedir@/run/$SERVICE.pid + fi +} + +restart() { + stop + start +} + +reload() { + echo -n $"Reloading $SERVICE configuration: " + + killproc $SERVICE -HUP + RETVAL=$? + echo + return $RETVAL +} + +# See how we were called. +case "$1" in + start|stop|restart|reload) + $1 + ;; + status) + status $SERVICE + RETVAL=$? + ;; + condrestart) + [ -f @localstatedir@/lock/subsys/$SERVICE ] && restart || : + ;; + *) + echo $"Usage: $0 {start|stop|status|restart|condrestart|reload}" + exit 1 + ;; +esac +exit $RETVAL Index: libvirt/configure.in =================================================================== --- libvirt.orig/configure.in +++ libvirt/configure.in @@ -100,6 +100,23 @@ AC_DEFINE_UNQUOTED(QEMUD_PID_FILE, "$QEM AC_MSG_RESULT($QEMUD_PID_FILE) dnl +dnl init script flavor +dnl +AC_MSG_CHECKING([for init script flavor]) +AC_ARG_WITH(init-script, + AC_HELP_STRING([--with-init-scripts=[redhat|auto|none]], + [Style of init scripts to install (defaults to auto)])) +if test "x$with_init_scripts" = "x" -o "x$with_init_scripts" = "xauto"; then + if test -f /etc/redhat-release ; then + with_init_scripts=redhat + else + with_init_scripts=none + fi +fi +AM_CONDITIONAL(LIBVIRT_INIT_SCRIPTS_RED_HAT, test x$with_init_scripts = xredhat) +AC_MSG_RESULT($with_init_scripts) + +dnl dnl allow the creation of iptables rules in chains with a dnl specific prefix rather than in the standard toplevel chains dnl --

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[Libvir] [patch 2/3] Add ability to write PID file to qemud
by Mark McLoughlin 23 Feb '07

23 Feb '07

Add a --pid-file arg to libvirt_qemud and, in daemon mode, default to writing a PID file. Passing --pid-file="" disables writing a PID file. Also add a --with-qemud-pid-file arg to configure. Passing --with-pid-file=none disables the default PID file path. The default path is /var/run/libvirt_qemud.pid in order to match the service name. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/configure.in =================================================================== --- libvirt.orig/configure.in +++ libvirt/configure.in @@ -87,6 +87,21 @@ if test x"$enable_debug" = x"yes"; then fi dnl +dnl PID file +dnl +AC_MSG_CHECKING([where to write libvirt_qemud PID file]) +AC_ARG_WITH(pid-file, AC_HELP_STRING([--with-qemud-pid-file=[pidfile|none]], [PID file for libvirt_qemud])) +if test "x$with_qemud_pid_file" == "x" ; then + QEMUD_PID_FILE="$localstatedir/run/libvirt_qemud.pid" +elif test "x$with_qemud_pid_file" == "xnone" ; then + QEMUD_PID_FILE="" +else + QEMUD_PID_FILE="$with_qemud_pid_file" +fi +AC_DEFINE_UNQUOTED(QEMUD_PID_FILE, "$QEMUD_PID_FILE", [PID file path for qemud]) +AC_MSG_RESULT($QEMUD_PID_FILE) + +dnl dnl allow the creation of iptables rules in chains with a dnl specific prefix rather than in the standard toplevel chains dnl Index: libvirt/qemud/qemud.c =================================================================== --- libvirt.orig/qemud/qemud.c +++ libvirt/qemud/qemud.c @@ -301,6 +301,42 @@ static int qemudGoDaemon(void) { } } +static int qemudWritePidFile(const char *pidFile) { + int fd; + FILE *fh; + + if (pidFile[0] == '\0') + return 0; + + if ((fd = open(pidFile, O_WRONLY|O_CREAT|O_EXCL, 0644)) < 0) { + qemudLog(QEMUD_ERR, "Failed to open pid file '%s' : %s", + pidFile, strerror(errno)); + return -1; + } + + if (!(fh = fdopen(fd, "w"))) { + qemudLog(QEMUD_ERR, "Failed to fdopen pid file '%s' : %s", + pidFile, strerror(errno)); + close(fd); + return -1; + } + + if (fprintf(fh, "%lu\n", (unsigned long)getpid()) < 0) { + qemudLog(QEMUD_ERR, "Failed to write to pid file '%s' : %s", + pidFile, strerror(errno)); + close(fd); + return -1; + } + + if (fclose(fh) == EOF) { + qemudLog(QEMUD_ERR, "Failed to close pid file '%s' : %s", + pidFile, strerror(errno)); + return -1; + } + + return 0; +} + static int qemudListenUnix(struct qemud_server *server, const char *path, int readonly) { struct qemud_socket *sock = calloc(1, sizeof(struct qemud_socket)); @@ -1481,12 +1517,15 @@ int main(int argc, char **argv) { struct qemud_server *server; struct sigaction sig_action; int sigpipe[2]; + char *pid_file = NULL; + int ret = 1; struct option opts[] = { { "verbose", no_argument, &verbose, 1}, { "daemon", no_argument, &godaemon, 1}, { "system", no_argument, &sys, 1}, { "timeout", required_argument, 0, 't'}, + { "pid-file", required_argument, 0, 'p'}, {0, 0, 0, 0} }; @@ -1495,7 +1534,7 @@ int main(int argc, char **argv) { int c; char *tmp; - c = getopt_long(argc, argv, "vsdt:", opts, &optidx); + c = getopt_long(argc, argv, "vsdt:p:", opts, &optidx); if (c == -1) { break; @@ -1522,6 +1561,11 @@ int main(int argc, char **argv) { if (timeout <= 0) timeout = -1; break; + + case 'p': + pid_file = strdup(optarg); + break; + case '?': return 2; break; @@ -1539,7 +1583,7 @@ int main(int argc, char **argv) { qemudSetNonBlock(sigpipe[1]) < 0) { qemudLog(QEMUD_ERR, "Failed to create pipe: %s", strerror(errno)); - return 1; + goto error1; } sigwrite = sigpipe[1]; @@ -1562,14 +1606,19 @@ int main(int argc, char **argv) { if (pid < 0) { qemudLog(QEMUD_ERR, "Failed to fork as daemon: %s", strerror(errno)); - return 1; + goto error1; } if (pid > 0) - return 0; + goto out; + + if (qemudWritePidFile(pid_file ? pid_file : QEMUD_PID_FILE) < 0) + goto error1; } - if (!(server = qemudInitialize(sys, sigpipe[0]))) - return 2; + if (!(server = qemudInitialize(sys, sigpipe[0]))) { + ret = 2; + goto error2; + } qemudRunLoop(server, timeout); @@ -1580,7 +1629,18 @@ int main(int argc, char **argv) { if (godaemon) closelog(); - return 0; + out: + ret = 0; + + error2: + if (godaemon) + unlink(pid_file ? pid_file : QEMUD_PID_FILE); + + error1: + if (pid_file) + free(pid_file); + + return ret; } /* --

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[Libvir] [patch 1/3] Move libvirt_qemud to /usr/sbin
by Mark McLoughlin 23 Feb '07

23 Feb '07

Move libvirt_qemud to /usr/sbin since it is now "designed to be executed by hand" ... i.e. we're adding an initscript for it rather than just having libvirt start it automatically. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/qemud/Makefile.am =================================================================== --- libvirt.orig/qemud/Makefile.am +++ libvirt/qemud/Makefile.am @@ -2,7 +2,7 @@ INCLUDES = @LIBXML_CFLAGS@ -libexec_PROGRAMS = libvirt_qemud +sbin_PROGRAMS = libvirt_qemud libvirt_qemud_SOURCES = qemud.c internal.h protocol.h \ driver.c driver.h \ Index: libvirt/src/Makefile.am =================================================================== --- libvirt.orig/src/Makefile.am +++ libvirt/src/Makefile.am @@ -1,7 +1,7 @@ ## Process this file with automake to produce Makefile.in INCLUDES = -I$(top_builddir)/include -I@top_srcdir@/include @LIBXML_CFLAGS@ -I@top_srcdir@/qemud \ - -DBINDIR=\""$(libexecdir)"\" -DLOCALEBASEDIR=\""$(datadir)/locale"\" \ + -DBINDIR=\""$(libexecdir)"\" -DSBINDIR=\""$(sbindir)"\" -DLOCALEBASEDIR=\""$(datadir)/locale"\" \ -DLOCAL_STATE_DIR=\""$(localstatedir)"\" \ -DGETTEXT_PACKAGE=\"$(PACKAGE)\" DEPS = libvirt.la Index: libvirt/src/qemu_internal.c =================================================================== --- libvirt.orig/src/qemu_internal.c +++ libvirt/src/qemu_internal.c @@ -99,8 +99,8 @@ static const char * qemuFindServerPath(void) { static const char *serverPaths[] = { - BINDIR "/libvirt_qemud", - BINDIR "/libvirt_qemud_dbg", + SBINDIR "/libvirt_qemud", + SBINDIR "/libvirt_qemud_dbg", NULL }; int i; --

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[Libvir] [patch 0/3] Add qemud init script
by Mark McLoughlin 23 Feb '07

23 Feb '07

Hey, In order to run autostart networks and guests at boot, we need an init script. Here she comes ... Cheers, Mark. --

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[Libvir] PATCH: Autodetect QEMU version
by Daniel P. Berrange 23 Feb '07

23 Feb '07

When I tested out the libvirt 0.2.0 in Fedora rawhide I discovered that the syntax for specifying VNC display numbers changes in QEMU 0.9.0. Previously you would use -vnc 7 Now you need to use -vnc :7 For current Fedora RPM I just hacked in a workaround to always add ':', but we need to be able to detect the version properly. So I'm attaching a patch which spawns '/usr/bin/qemu' and groks its command line help to extract the version number. It then uses appropriate VNC argument syntax based on the version. At the same time I also check for whether -no-kqemu is available so we can turn off KQEMU support if it is not available. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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Re: [Libvir] [patch 3/9] Re-factor chunks of qemuds config handling
by Daniel P. Berrange 22 Feb '07

22 Feb '07

On Thu, Feb 22, 2007 at 11:04:37AM +0000, Mark McLoughlin wrote: > The easiest way to explain where I'm coming from with > this patch is to look at the current qemudLoadConfigXML(). > > It's used in three places: > > 1) Loading at startup - you want (a) and (b), but you > want to check whether the name matches the filename > before doing (b) > > 2) Create() - you want (a) and (b) > > 3) Define() - you want (a), (b) and (c) > > So, mostly I'm just splitting the function into three > and making the logic above much more obvious. It should > also make some of the autostart code much more > straightforward. Hard to tell from the raw patch exactly how it fits together, but the principles of the patch all sound good to me - centralizing alot of the pointer munging into one place & generally tidying stuff up. BTW, your mailer alias for this list is wrong - its generating a bogus reply to against libvirt hacker dudes <libvirt-list(a)redhat.com> Instead of libvirt hacker dudes <libvir-list(a)redhat.com> Note, the extra 't' in the former - which makes replying to your mails a little error prone - several went to dev null... Dan -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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[Libvir] Autostarting guests and networks
by Mark McLoughlin 22 Feb '07

22 Feb '07

Hey, We need some way to have libvirtd automatically start guests and networks. We had said we should have autostart directories containing config files of guests/networks which should be autostarted. One problem I see with that is that we'd need a new API to define autostart configs. So, I suggest we add an "autostart" flag to the toplevel element of the configs. We could discuss this one at length and I, for one, don't like using the XML format as an API like this, but ... comments? Cheers, Mark.

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Re: [Libvir] [patch 0/9] Revised autostart patches
by Daniel P. Berrange 22 Feb '07

22 Feb '07

On Thu, Feb 22, 2007 at 11:04:08AM +0000, Mark McLoughlin wrote: > Hey, > Here's the autostart patches again. If you're just > looking for what's changed, it's probably fine to just look > at patch 3 (some heavy re-factoring to make the autostart > stuff easier) and patch 7 (maintains symlinks in the autostart > dirs instead of config files). Aside from the note about 'virsh list' command changes, it all looks good to me. Unless anyone else has objections I'd say commit this to CVS - I want to re-do the handling of the QEMU monitor to detect errors at startup and would rather work with your big refactoring already applied.. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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Re: [Libvir] [patch 1/9] Merge the active and inactive network/guest lists
by Daniel P. Berrange 22 Feb '07

22 Feb '07

On Thu, Feb 22, 2007 at 11:04:20AM +0000, Mark McLoughlin wrote: > Merge the ->activevms and ->inactivevms into a single > ->vms list where each VM has a "active" flag in order > to make things easier to manage. That looks good now with the qemudIsActiveVM() helper function. Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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[Libvir] PATCH: Don't leave a 'braindead' Xen VM when device hotplug fails
by Daniel P. Berrange 22 Feb '07

22 Feb '07

Because of the way Xen guest creation works, the virDomainCreateLinux implementation for Xen is really a three stage process - first we create the raw domain, then we have to wait for device hotplug to complete, finally unpausing the domain. Currently if the device hotplug fails we error out, leaving a 'braindead' VM lying around in the paused state. This is rather confusing for users leading to people thinking everything was OK, and thus unpausing the guest manually, then filing bug reports when they find they've no devices in the guest VM ! The xm tool by comparison will tear down the VM if the device hotplug fails so the user doesn't see the paused domain after the failure. The attached patch re-arranges the Xen driver for creating new domains to do the same kind of thing - upon any failure we explicitly destroy the halfdead domain Regards, Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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[Libvir] [PATCH]Guard for Dom0 by virsh domain stop commands
by Kazuki　Mizushima 22 Feb '07

22 Feb '07

Hi, I think Domain0 should NOT stop by virsh domain stop commands. (like shutdown, reboot, destroy). But virsh shudown and reboot commands are still available for Dom0. This patch intends to disable these two commands for Dom0. Internal processing of these two commands is following 1)Send shutdown or reboot to Xend (Guard of xend) 2)If 1) is failed, shutdown/reboot is executed by xenstore. (Not Guard) This patch removes 2) ,that is as same as destroy processing. Signed-off-by: Kazuki Mizushima <mizushima.kazuk(a)jp.fujitsu.com> Thanks, Kazuki Mizushima Index: xs_internal.c (libvirt-0.2.0) ---------------------------------------------------------------------- --- xs_internal.c 2007-02-15 01:11:54.000000000 +0900 +++ xs_internal.c.guard 2007-02-22 00:31:55.000000000 +0900 @@ -54,8 +54,8 @@ static virDriver xenStoreDriver = { xenStoreDomainLookupByName, /* domainLookupByName */ NULL, /* domainSuspend */ NULL, /* domainResume */ - xenStoreDomainShutdown, /* domainShutdown */ - xenStoreDomainReboot, /* domainReboot */ + NULL, /* domainShutdown */ + NULL, /* domainReboot */ NULL, /* domainDestroy */ xenStoreDomainGetOSType, /* domainGetOSType */ xenStoreDomainGetMaxMemory, /* domainGetMaxMemory */ ----------------------------------------------------------------------

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[Libvir] [patch 9/9] Actually autostart guests and networks
by Mark McLoughlin 22 Feb '07

22 Feb '07

Add qemudAutostartConfigs() to autostart guests and networks. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/qemud/conf.c =================================================================== --- libvirt.orig/qemud/conf.c +++ libvirt/qemud/conf.c @@ -1972,11 +1972,49 @@ int qemudScanConfigDir(struct qemud_serv return 0; } +static +void qemudAutostartConfigs(struct qemud_server *server) { + struct qemud_network *network; + struct qemud_vm *vm; + + network = server->networks; + while (network != NULL) { + struct qemud_network *next = network->next; + + if (network->autostart && + !qemudIsActiveNetwork(network) && + qemudStartNetworkDaemon(server, network) < 0) + qemudLog(QEMUD_ERR, "Failed to autostart network '%s'", + network->def->name); + + network = next; + } + + vm = server->vms; + while (vm != NULL) { + struct qemud_vm *next = vm->next; + + if (vm->autostart && + !qemudIsActiveVM(vm) && + qemudStartVMDaemon(server, vm) < 0) + qemudLog(QEMUD_ERR, "Failed to autostart VM '%s'", + vm->def->name); + + vm = next; + } +} + /* Scan for all guest and network config files */ int qemudScanConfigs(struct qemud_server *server) { if (qemudScanConfigDir(server, server->configDir, server->autostartDir, 1) < 0) return -1; - return qemudScanConfigDir(server, server->networkConfigDir, server->networkAutostartDir, 0); + + if (qemudScanConfigDir(server, server->networkConfigDir, server->networkAutostartDir, 0) < 0) + return -1; + + qemudAutostartConfigs(server); + + return 0; } /* Simple grow-on-demand string buffer */ --

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[Libvir] [patch 8/9] Cleanup configDir members
by Mark McLoughlin 22 Feb '07

22 Feb '07

qemudInitPaths() is starting to get a little unwieldly so put the config directory paths in an array. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/qemud/internal.h =================================================================== --- libvirt.orig/qemud/internal.h +++ libvirt/qemud/internal.h @@ -54,6 +54,15 @@ typedef enum { #endif } qemudLogPriority; +typedef enum { + QEMUD_DIR_CONFIG = 0, + QEMUD_DIR_AUTOSTART, + QEMUD_DIR_NETWORK_CONFIG, + QEMUD_DIR_NETWORK_AUTOSTART, + + QEMUD_N_CONFIG_DIRS +} qemudConfigDirType; + /* Different types of QEMU acceleration possible */ enum qemud_vm_virt_type { QEMUD_VIRT_QEMU, @@ -293,10 +302,11 @@ struct qemud_server { struct qemud_network *networks; brControl *brctl; iptablesContext *iptables; - char configDir[PATH_MAX]; - char networkConfigDir[PATH_MAX]; - char autostartDir[PATH_MAX]; - char networkAutostartDir[PATH_MAX]; + char configDirs[QEMUD_N_CONFIG_DIRS][PATH_MAX]; + char *configDir; + char *autostartDir; + char *networkConfigDir; + char *networkAutostartDir; char errorMessage[QEMUD_MAX_ERROR_LEN]; int errorCode; unsigned int shutdown : 1; Index: libvirt/qemud/qemud.c =================================================================== --- libvirt.orig/qemud/qemud.c +++ libvirt/qemud/qemud.c @@ -354,15 +354,22 @@ static int qemudListenUnix(struct qemud_ return 0; } -static int qemudInitPaths(int sys, - char *configDir, - char *networkConfigDir, - char *autostartDir, - char *networkAutostartDir, +static int qemudInitPaths(struct qemud_server *server, + int sys, char *sockname, char *roSockname, int maxlen) { + const char *paths[] = { + "libvirt/qemu", /* QEMUD_DIR_DOMAINS */ + "libvirt/qemu/autostart", /* QEMUD_DIR_AUTO_DOMAINS */ + "libvirt/qemu/networks", /* QEMUD_DIR_NETWORKS */ + "libvirt/qemu/networks/autostart", /* QEMUD_DIR_AUTO_NETWORKS */ + }; + uid_t uid; + struct passwd *pw; + char base[PATH_MAX] = SYSCONF_DIR "/"; + int i; uid = geteuid(); @@ -372,18 +379,6 @@ static int qemudInitPaths(int sys, return -1; } - if (snprintf(configDir, maxlen, "%s/libvirt/qemu", SYSCONF_DIR) >= maxlen) - goto snprintf_error; - - if (snprintf(networkConfigDir, maxlen, "%s/libvirt/qemu/networks", SYSCONF_DIR) >= maxlen) - goto snprintf_error; - - if (snprintf(autostartDir, maxlen, "%s/libvirt/qemu/autostart", SYSCONF_DIR) >= maxlen) - goto snprintf_error; - - if (snprintf(networkAutostartDir, maxlen, "%s/libvirt/qemu/networks/autostart", SYSCONF_DIR) >= maxlen) - goto snprintf_error; - if (snprintf(sockname, maxlen, "%s/run/libvirt/qemud-sock", LOCAL_STATE_DIR) >= maxlen) goto snprintf_error; @@ -394,29 +389,22 @@ static int qemudInitPaths(int sys, unlink(sockname); } else { - struct passwd *pw; - if (!(pw = getpwuid(uid))) { qemudLog(QEMUD_ERR, "Failed to find user record for uid '%d': %s", uid, strerror(errno)); return -1; } - if (snprintf(configDir, maxlen, "%s/.libvirt/qemu", pw->pw_dir) >= maxlen) - goto snprintf_error; - - if (snprintf(networkConfigDir, maxlen, "%s/.libvirt/qemu/networks", pw->pw_dir) >= maxlen) - goto snprintf_error; - - if (snprintf(autostartDir, maxlen, "%s/.libvirt/qemu/autostart", pw->pw_dir) >= maxlen) + if (snprintf(sockname, maxlen, "@%s/.libvirt/qemud-sock", pw->pw_dir) >= maxlen) goto snprintf_error; - if (snprintf(networkAutostartDir, maxlen, "%s/.libvirt/qemu/networks/autostart", pw->pw_dir) >= maxlen) + if (snprintf(base, PATH_MAX, "%s/.", pw->pw_dir) >= PATH_MAX) goto snprintf_error; + } - if (snprintf(sockname, maxlen, "@%s/.libvirt/qemud-sock", pw->pw_dir) >= maxlen) + for (i = 0; i < QEMUD_N_CONFIG_DIRS; i++) + if (snprintf(server->configDirs[i], PATH_MAX, "%s%s", base, paths[i]) >= PATH_MAX) goto snprintf_error; - } return 0; @@ -443,11 +431,14 @@ static struct qemud_server *qemudInitial roSockname[0] = '\0'; - if (qemudInitPaths(sys, server->configDir, server->networkConfigDir, - server->autostartDir, server->networkAutostartDir, - sockname, roSockname, PATH_MAX) < 0) + if (qemudInitPaths(server, sys, sockname, roSockname, PATH_MAX) < 0) goto cleanup; + server->configDir = server->configDirs[QEMUD_DIR_CONFIG]; + server->autostartDir = server->configDirs[QEMUD_DIR_AUTOSTART]; + server->networkConfigDir = server->configDirs[QEMUD_DIR_NETWORK_CONFIG]; + server->networkAutostartDir = server->configDirs[QEMUD_DIR_NETWORK_AUTOSTART]; + if (qemudListenUnix(server, sockname, 0) < 0) goto cleanup; --

1 0

[Libvir] [patch 7/9] Add autostart QEMU implementation
by Mark McLoughlin 22 Feb '07

22 Feb '07

Actually implement the autostart API in qemud by creating symlinks in the autostart directories. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/qemud/internal.h =================================================================== --- libvirt.orig/qemud/internal.h +++ libvirt/qemud/internal.h @@ -205,6 +205,7 @@ struct qemud_vm { int ntapfds; char configFile[PATH_MAX]; + char autostartLink[PATH_MAX]; struct qemud_vm_def *def; /* The current definition */ struct qemud_vm_def *newDef; /* New definition to activate at shutdown */ @@ -241,6 +242,7 @@ struct qemud_network_def { /* Virtual Network runtime state */ struct qemud_network { char configFile[PATH_MAX]; + char autostartLink[PATH_MAX]; struct qemud_network_def *def; /* The current definition */ struct qemud_network_def *newDef; /* New definition to activate at shutdown */ @@ -293,6 +295,8 @@ struct qemud_server { iptablesContext *iptables; char configDir[PATH_MAX]; char networkConfigDir[PATH_MAX]; + char autostartDir[PATH_MAX]; + char networkAutostartDir[PATH_MAX]; char errorMessage[QEMUD_MAX_ERROR_LEN]; int errorCode; unsigned int shutdown : 1; Index: libvirt/qemud/conf.c =================================================================== --- libvirt.orig/qemud/conf.c +++ libvirt/qemud/conf.c @@ -137,7 +137,7 @@ qemudMakeConfigPath(const char *configDi return 0; } -static int +int qemudEnsureDir(const char *path) { struct stat st; @@ -1287,6 +1287,14 @@ qemudSaveVMDef(struct qemud_server *serv "cannot construct config file path"); return -1; } + + if (qemudMakeConfigPath(server->autostartDir, def->name, ".xml", + vm->autostartLink, PATH_MAX) < 0) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "cannot construct autostart link path"); + vm->configFile[0] = '\0'; + return -1; + } } return qemudSaveConfig(server, vm, def); @@ -1666,6 +1674,14 @@ qemudSaveNetworkDef(struct qemud_server "cannot construct config file path"); return -1; } + + if (qemudMakeConfigPath(server->networkAutostartDir, def->name, ".xml", + network->autostartLink, PATH_MAX) < 0) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "cannot construct autostart link path"); + network->configFile[0] = '\0'; + return -1; + } } return qemudSaveNetworkConfig(server, network, def); @@ -1735,11 +1751,105 @@ compareFileToNameSuffix(const char *file return 0; } +static int +checkLinkPointsTo(const char *checkLink, + const char *checkDest) +{ + char dest[PATH_MAX]; + char real[PATH_MAX]; + char checkReal[PATH_MAX]; + int n; + int passed = 0; + + /* read the link destination */ + if ((n = readlink(checkLink, dest, PATH_MAX)) < 0) { + switch (errno) { + case ENOENT: + case ENOTDIR: + break; + + case EINVAL: + qemudLog(QEMUD_WARN, "Autostart file '%s' is not a symlink", + checkLink); + break; + + default: + qemudLog(QEMUD_WARN, "Failed to read autostart symlink '%s': %s", + checkLink, strerror(errno)); + break; + } + + goto failed; + } else if (n >= PATH_MAX) { + qemudLog(QEMUD_WARN, "Symlink '%s' contents too long to fit in buffer", + checkLink); + goto failed; + } + + dest[n] = '\0'; + + /* make absolute */ + if (dest[0] != '/') { + char dir[PATH_MAX]; + char tmp[PATH_MAX]; + char *p; + + strncpy(dir, checkLink, PATH_MAX); + dir[PATH_MAX] = '\0'; + + if (!(p = strrchr(dir, '/'))) { + qemudLog(QEMUD_WARN, "Symlink path '%s' is not absolute", checkLink); + goto failed; + } + + if (p == dir) /* handle unlikely root dir case */ + p++; + + *p = '\0'; + + if (qemudMakeConfigPath(dir, dest, NULL, tmp, PATH_MAX) < 0) { + qemudLog(QEMUD_WARN, "Path '%s/%s' is too long", dir, dest); + goto failed; + } + + strncpy(dest, tmp, PATH_MAX); + dest[PATH_MAX] = '\0'; + } + + /* canonicalize both paths */ + if (!realpath(dest, real)) { + qemudLog(QEMUD_WARN, "Failed to expand path '%s' :%s", + dest, strerror(errno)); + strncpy(real, dest, PATH_MAX); + real[PATH_MAX] = '\0'; + } + + if (!realpath(checkDest, checkReal)) { + qemudLog(QEMUD_WARN, "Failed to expand path '%s' :%s", + checkDest, strerror(errno)); + strncpy(checkReal, checkDest, PATH_MAX); + checkReal[PATH_MAX] = '\0'; + } + + /* compare */ + if (strcmp(checkReal, real) != 0) { + qemudLog(QEMUD_WARN, "Autostart link '%s' is not a symlink to '%s', ignoring", + checkLink, checkReal); + goto failed; + } + + passed = 1; + + failed: + return passed; +} + static struct qemud_vm * qemudLoadConfig(struct qemud_server *server, const char *file, const char *path, - const char *xml) { + const char *xml, + const char *autostartLink) { struct qemud_vm_def *def; struct qemud_vm *vm; @@ -1765,6 +1875,11 @@ qemudLoadConfig(struct qemud_server *ser strncpy(vm->configFile, path, PATH_MAX); vm->configFile[PATH_MAX-1] = '\0'; + strncpy(vm->autostartLink, autostartLink, PATH_MAX); + vm->autostartLink[PATH_MAX-1] = '\0'; + + vm->autostart = checkLinkPointsTo(vm->autostartLink, vm->configFile); + return vm; } @@ -1772,7 +1887,8 @@ static struct qemud_network * qemudLoadNetworkConfig(struct qemud_server *server, const char *file, const char *path, - const char *xml) { + const char *xml, + const char *autostartLink) { struct qemud_network_def *def; struct qemud_network *network; @@ -1798,12 +1914,18 @@ qemudLoadNetworkConfig(struct qemud_serv strncpy(network->configFile, path, PATH_MAX); network->configFile[PATH_MAX-1] = '\0'; + strncpy(network->autostartLink, autostartLink, PATH_MAX); + network->autostartLink[PATH_MAX-1] = '\0'; + + network->autostart = checkLinkPointsTo(network->autostartLink, network->configFile); + return network; } static int qemudScanConfigDir(struct qemud_server *server, const char *configDir, + const char *autostartDir, int isGuest) { DIR *dir; struct dirent *entry; @@ -1819,6 +1941,7 @@ int qemudScanConfigDir(struct qemud_serv while ((entry = readdir(dir))) { char xml[QEMUD_MAX_XML_LEN]; char path[PATH_MAX]; + char autostartLink[PATH_MAX]; if (entry->d_name[0] == '.') continue; @@ -1829,13 +1952,19 @@ int qemudScanConfigDir(struct qemud_serv continue; } + if (qemudMakeConfigPath(autostartDir, entry->d_name, NULL, autostartLink, PATH_MAX) < 0) { + qemudLog(QEMUD_WARN, "Autostart link path '%s/%s' is too long", + autostartDir, entry->d_name); + continue; + } + if (!qemudReadFile(path, xml, QEMUD_MAX_XML_LEN)) continue; if (isGuest) - qemudLoadConfig(server, entry->d_name, path, xml); + qemudLoadConfig(server, entry->d_name, path, xml, autostartLink); else - qemudLoadNetworkConfig(server, entry->d_name, path, xml); + qemudLoadNetworkConfig(server, entry->d_name, path, xml, autostartLink); } closedir(dir); @@ -1845,9 +1974,9 @@ int qemudScanConfigDir(struct qemud_serv /* Scan for all guest and network config files */ int qemudScanConfigs(struct qemud_server *server) { - if (qemudScanConfigDir(server, server->configDir, 1) < 0) + if (qemudScanConfigDir(server, server->configDir, server->autostartDir, 1) < 0) return -1; - return qemudScanConfigDir(server, server->networkConfigDir, 0); + return qemudScanConfigDir(server, server->networkConfigDir, server->networkAutostartDir, 0); } /* Simple grow-on-demand string buffer */ Index: libvirt/qemud/driver.c =================================================================== --- libvirt.orig/qemud/driver.c +++ libvirt/qemud/driver.c @@ -502,7 +502,12 @@ int qemudDomainUndefine(struct qemud_ser if (qemudDeleteConfig(server, vm->configFile, vm->def->name) < 0) return -1; + if (unlink(vm->autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) + qemudLog(QEMUD_WARN, "Failed to delete autostart link '%s': %s", + vm->autostartLink, strerror(errno)); + vm->configFile[0] = '\0'; + vm->autostartLink[0] = '\0'; qemudRemoveInactiveVM(server, vm); @@ -539,6 +544,31 @@ int qemudDomainSetAutostart(struct qemud if (vm->autostart == autostart) return 0; + if (autostart) { + int err; + + if ((err = qemudEnsureDir(server->autostartDir))) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "cannot create autostart directory %s: %s", + server->autostartDir, strerror(err)); + return -1; + } + + if (symlink(vm->configFile, vm->autostartLink) < 0) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "Failed to create symlink '%s' to '%s': %s", + vm->autostartLink, vm->configFile, strerror(errno)); + return -1; + } + } else { + if (unlink(vm->autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "Failed to delete symlink '%s': %s", + vm->autostartLink, strerror(errno)); + return -1; + } + } + vm->autostart = autostart; return 0; @@ -657,7 +687,12 @@ int qemudNetworkUndefine(struct qemud_se if (qemudDeleteConfig(server, network->configFile, network->def->name) < 0) return -1; + if (unlink(network->autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) + qemudLog(QEMUD_WARN, "Failed to delete autostart link '%s': %s", + network->autostartLink, strerror(errno)); + network->configFile[0] = '\0'; + network->autostartLink[0] = '\0'; qemudRemoveInactiveNetwork(server, network); @@ -750,6 +785,31 @@ int qemudNetworkSetAutostart(struct qemu if (network->autostart == autostart) return 0; + if (autostart) { + int err; + + if ((err = qemudEnsureDir(server->networkAutostartDir))) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "cannot create autostart directory %s: %s", + server->networkAutostartDir, strerror(err)); + return -1; + } + + if (symlink(network->configFile, network->autostartLink) < 0) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "Failed to create symlink '%s' to '%s': %s", + network->autostartLink, network->configFile, strerror(errno)); + return -1; + } + } else { + if (unlink(network->autostartLink) < 0 && errno != ENOENT && errno != ENOTDIR) { + qemudReportError(server, VIR_ERR_INTERNAL_ERROR, + "Failed to delete symlink '%s': %s", + network->autostartLink, strerror(errno)); + return -1; + } + } + network->autostart = autostart; return 0; Index: libvirt/qemud/qemud.c =================================================================== --- libvirt.orig/qemud/qemud.c +++ libvirt/qemud/qemud.c @@ -357,6 +357,8 @@ static int qemudListenUnix(struct qemud_ static int qemudInitPaths(int sys, char *configDir, char *networkConfigDir, + char *autostartDir, + char *networkAutostartDir, char *sockname, char *roSockname, int maxlen) { @@ -376,6 +378,12 @@ static int qemudInitPaths(int sys, if (snprintf(networkConfigDir, maxlen, "%s/libvirt/qemu/networks", SYSCONF_DIR) >= maxlen) goto snprintf_error; + if (snprintf(autostartDir, maxlen, "%s/libvirt/qemu/autostart", SYSCONF_DIR) >= maxlen) + goto snprintf_error; + + if (snprintf(networkAutostartDir, maxlen, "%s/libvirt/qemu/networks/autostart", SYSCONF_DIR) >= maxlen) + goto snprintf_error; + if (snprintf(sockname, maxlen, "%s/run/libvirt/qemud-sock", LOCAL_STATE_DIR) >= maxlen) goto snprintf_error; @@ -400,6 +408,12 @@ static int qemudInitPaths(int sys, if (snprintf(networkConfigDir, maxlen, "%s/.libvirt/qemu/networks", pw->pw_dir) >= maxlen) goto snprintf_error; + if (snprintf(autostartDir, maxlen, "%s/.libvirt/qemu/autostart", pw->pw_dir) >= maxlen) + goto snprintf_error; + + if (snprintf(networkAutostartDir, maxlen, "%s/.libvirt/qemu/networks/autostart", pw->pw_dir) >= maxlen) + goto snprintf_error; + if (snprintf(sockname, maxlen, "@%s/.libvirt/qemud-sock", pw->pw_dir) >= maxlen) goto snprintf_error; } @@ -430,6 +444,7 @@ static struct qemud_server *qemudInitial roSockname[0] = '\0'; if (qemudInitPaths(sys, server->configDir, server->networkConfigDir, + server->autostartDir, server->networkAutostartDir, sockname, roSockname, PATH_MAX) < 0) goto cleanup; Index: libvirt/qemud/conf.h =================================================================== --- libvirt.orig/qemud/conf.h +++ libvirt/qemud/conf.h @@ -34,6 +34,7 @@ int qemudScanConfigs int qemudDeleteConfig (struct qemud_server *server, const char *configFile, const char *name); +int qemudEnsureDir (const char *path); void qemudFreeVMDef (struct qemud_vm_def *vm); void qemudFreeVM (struct qemud_vm *vm); --

1 0

[Libvir] [patch 6/9] Add autostart QEMU stubs
by Mark McLoughlin 22 Feb '07

22 Feb '07

Add the obvious parts of the QEMU implementation of the autostart API. Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/qemud/dispatch.c =================================================================== --- libvirt.orig/qemud/dispatch.c +++ libvirt/qemud/dispatch.c @@ -717,6 +717,97 @@ static int qemudDispatchNetworkGetBridge return 0; } +static int qemudDispatchDomainGetAutostart(struct qemud_server *server, struct qemud_client *client, + struct qemud_packet *in, struct qemud_packet *out) +{ + int ret; + int autostart; + + if (in->header.dataSize != sizeof(in->data.domainGetAutostartRequest)) + return -1; + + autostart = 0; + + ret = qemudDomainGetAutostart(server, + in->data.domainGetAutostartRequest.uuid, + &autostart); + if (ret < 0) { + if (qemudDispatchFailure(server, client, out) < 0) + return -1; + } else { + out->header.type = QEMUD_PKT_DOMAIN_GET_AUTOSTART; + out->header.dataSize = sizeof(out->data.networkGetAutostartReply); + out->data.networkGetAutostartReply.autostart = (autostart != 0); + } + return 0; +} + +static int qemudDispatchDomainSetAutostart(struct qemud_server *server, struct qemud_client *client, + struct qemud_packet *in, struct qemud_packet *out) +{ + int ret; + + if (in->header.dataSize != sizeof(in->data.domainSetAutostartRequest)) + return -1; + + ret = qemudDomainSetAutostart(server, + in->data.domainGetAutostartRequest.uuid, + in->data.domainSetAutostartRequest.autostart); + if (ret < 0) { + if (qemudDispatchFailure(server, client, out) < 0) + return -1; + } else { + out->header.type = QEMUD_PKT_DOMAIN_SET_AUTOSTART; + out->header.dataSize = 0; + } + return 0; +} + +static int qemudDispatchNetworkGetAutostart(struct qemud_server *server, struct qemud_client *client, + struct qemud_packet *in, struct qemud_packet *out) +{ + int ret; + int autostart; + + if (in->header.dataSize != sizeof(in->data.networkGetAutostartRequest)) + return -1; + + autostart = 0; + + ret = qemudNetworkGetAutostart(server, + in->data.networkGetAutostartRequest.uuid, + &autostart); + if (ret < 0) { + if (qemudDispatchFailure(server, client, out) < 0) + return -1; + } else { + out->header.type = QEMUD_PKT_NETWORK_GET_AUTOSTART; + out->header.dataSize = sizeof(out->data.networkGetAutostartReply); + out->data.networkGetAutostartReply.autostart = (autostart != 0); + } + return 0; +} + +static int qemudDispatchNetworkSetAutostart(struct qemud_server *server, struct qemud_client *client, + struct qemud_packet *in, struct qemud_packet *out) +{ + int ret; + + if (in->header.dataSize != sizeof(in->data.networkSetAutostartRequest)) + return -1; + + ret = qemudNetworkSetAutostart(server, + in->data.networkGetAutostartRequest.uuid, + in->data.networkSetAutostartRequest.autostart); + if (ret < 0) { + if (qemudDispatchFailure(server, client, out) < 0) + return -1; + } else { + out->header.type = QEMUD_PKT_NETWORK_SET_AUTOSTART; + out->header.dataSize = 0; + } + return 0; +} typedef int (*clientFunc)(struct qemud_server *server, struct qemud_client *client, struct qemud_packet *in, struct qemud_packet *out); @@ -759,6 +850,10 @@ clientFunc funcsTransmitRW[QEMUD_PKT_MAX qemudDispatchNetworkDestroy, qemudDispatchNetworkDumpXML, qemudDispatchNetworkGetBridgeName, + qemudDispatchDomainGetAutostart, + qemudDispatchDomainSetAutostart, + qemudDispatchNetworkGetAutostart, + qemudDispatchNetworkSetAutostart, }; clientFunc funcsTransmitRO[QEMUD_PKT_MAX] = { @@ -796,6 +891,10 @@ clientFunc funcsTransmitRO[QEMUD_PKT_MAX NULL, qemudDispatchNetworkDumpXML, qemudDispatchNetworkGetBridgeName, + qemudDispatchDomainGetAutostart, + NULL, + qemudDispatchNetworkGetAutostart, + NULL, }; /* Index: libvirt/qemud/driver.c =================================================================== --- libvirt.orig/qemud/driver.c +++ libvirt/qemud/driver.c @@ -509,6 +509,41 @@ int qemudDomainUndefine(struct qemud_ser return 0; } +int qemudDomainGetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int *autostart) { + struct qemud_vm *vm = qemudFindVMByUUID(server, uuid); + + if (!vm) { + qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no domain with matching uuid"); + return -1; + } + + *autostart = vm->autostart; + + return 0; +} + +int qemudDomainSetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int autostart) { + struct qemud_vm *vm = qemudFindVMByUUID(server, uuid); + + if (!vm) { + qemudReportError(server, VIR_ERR_INVALID_DOMAIN, "no domain with matching uuid"); + return -1; + } + + autostart = (autostart != 0); + + if (vm->autostart == autostart) + return 0; + + vm->autostart = autostart; + + return 0; +} + struct qemud_network *qemudFindNetworkByUUID(const struct qemud_server *server, const unsigned char *uuid) { struct qemud_network *network = server->networks; @@ -685,6 +720,41 @@ int qemudNetworkGetBridgeName(struct qem return 0; } +int qemudNetworkGetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int *autostart) { + struct qemud_network *network = qemudFindNetworkByUUID(server, uuid); + + if (!network) { + qemudReportError(server, VIR_ERR_INVALID_NETWORK, "no network with matching uuid"); + return -1; + } + + *autostart = network->autostart; + + return 0; +} + +int qemudNetworkSetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int autostart) { + struct qemud_network *network = qemudFindNetworkByUUID(server, uuid); + + if (!network) { + qemudReportError(server, VIR_ERR_INVALID_NETWORK, "no network with matching uuid"); + return -1; + } + + autostart = (autostart != 0); + + if (network->autostart == autostart) + return 0; + + network->autostart = autostart; + + return 0; +} + /* * Local variables: * indent-tabs-mode: nil Index: libvirt/qemud/driver.h =================================================================== --- libvirt.orig/qemud/driver.h +++ libvirt/qemud/driver.h @@ -85,6 +85,12 @@ struct qemud_vm *qemudDomainDefine(struc const char *xml); int qemudDomainUndefine(struct qemud_server *server, const unsigned char *uuid); +int qemudDomainGetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int *autostart); +int qemudDomainSetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int autostart); struct qemud_network *qemudFindNetworkByUUID(const struct qemud_server *server, const unsigned char *uuid); @@ -117,6 +123,12 @@ int qemudNetworkGetBridgeName(struct qem const unsigned char *uuid, char *ifname, int ifnamelen); +int qemudNetworkGetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int *autostart); +int qemudNetworkSetAutostart(struct qemud_server *server, + const unsigned char *uuid, + int autostart); #endif Index: libvirt/qemud/internal.h =================================================================== --- libvirt.orig/qemud/internal.h +++ libvirt/qemud/internal.h @@ -209,6 +209,8 @@ struct qemud_vm { struct qemud_vm_def *def; /* The current definition */ struct qemud_vm_def *newDef; /* New definition to activate at shutdown */ + unsigned int autostart : 1; + struct qemud_vm *next; }; @@ -247,6 +249,7 @@ struct qemud_network { int dnsmasqPid; unsigned int active : 1; + unsigned int autostart : 1; struct qemud_network *next; }; Index: libvirt/qemud/protocol.h =================================================================== --- libvirt.orig/qemud/protocol.h +++ libvirt/qemud/protocol.h @@ -64,6 +64,10 @@ enum { QEMUD_PKT_NETWORK_DESTROY, QEMUD_PKT_NETWORK_DUMP_XML, QEMUD_PKT_NETWORK_GET_BRIDGE_NAME, + QEMUD_PKT_DOMAIN_GET_AUTOSTART, + QEMUD_PKT_DOMAIN_SET_AUTOSTART, + QEMUD_PKT_NETWORK_GET_AUTOSTART, + QEMUD_PKT_NETWORK_SET_AUTOSTART, QEMUD_PKT_MAX, } qemud_packet_type; @@ -279,6 +283,26 @@ union qemud_packet_data { struct { char ifname[QEMUD_MAX_IFNAME_LEN]; } networkGetBridgeNameReply; + struct { + unsigned char uuid[QEMUD_UUID_RAW_LEN]; + } domainGetAutostartRequest; + struct { + int autostart; + } domainGetAutostartReply; + struct { + unsigned char uuid[QEMUD_UUID_RAW_LEN]; + unsigned int autostart : 1; + } domainSetAutostartRequest; + struct { + unsigned char uuid[QEMUD_UUID_RAW_LEN]; + } networkGetAutostartRequest; + struct { + unsigned int autostart : 1; + } networkGetAutostartReply; + struct { + unsigned char uuid[QEMUD_UUID_RAW_LEN]; + unsigned int autostart : 1; + } networkSetAutostartRequest; }; /* Each packet has header & data */ Index: libvirt/src/qemu_internal.c =================================================================== --- libvirt.orig/src/qemu_internal.c +++ libvirt/src/qemu_internal.c @@ -806,6 +806,39 @@ static int qemuUndefine(virDomainPtr dom return ret; } +static int qemuDomainGetAutostart(virDomainPtr dom, + int *autostart) { + struct qemud_packet req, reply; + + req.header.type = QEMUD_PKT_DOMAIN_GET_AUTOSTART; + req.header.dataSize = sizeof(req.data.domainGetAutostartRequest); + memmove(req.data.domainGetAutostartRequest.uuid, dom->uuid, QEMUD_UUID_RAW_LEN); + + if (qemuProcessRequest(dom->conn, NULL, &req, &reply) < 0) { + return -1; + } + + *autostart = reply.data.domainGetAutostartReply.autostart; + + return 0; +} + +static int qemuDomainSetAutostart(virDomainPtr dom, + int autostart) { + struct qemud_packet req, reply; + + req.header.type = QEMUD_PKT_DOMAIN_SET_AUTOSTART; + req.header.dataSize = sizeof(req.data.domainSetAutostartRequest); + req.data.domainSetAutostartRequest.autostart = (autostart != 0); + memmove(req.data.domainSetAutostartRequest.uuid, dom->uuid, QEMUD_UUID_RAW_LEN); + + if (qemuProcessRequest(dom->conn, NULL, &req, &reply) < 0) { + return -1; + } + + return 0; +} + static int qemuNetworkOpen(virConnectPtr conn, const char *name, int flags) { @@ -1093,6 +1126,39 @@ static char * qemuNetworkGetBridgeName(v return strdup(reply.data.networkGetBridgeNameReply.ifname); } +static int qemuNetworkGetAutostart(virNetworkPtr network, + int *autostart) { + struct qemud_packet req, reply; + + req.header.type = QEMUD_PKT_NETWORK_GET_AUTOSTART; + req.header.dataSize = sizeof(req.data.networkGetAutostartRequest); + memmove(req.data.networkGetAutostartRequest.uuid, network->uuid, QEMUD_UUID_RAW_LEN); + + if (qemuProcessRequest(network->conn, NULL, &req, &reply) < 0) { + return -1; + } + + *autostart = reply.data.networkGetAutostartReply.autostart; + + return 0; +} + +static int qemuNetworkSetAutostart(virNetworkPtr network, + int autostart) { + struct qemud_packet req, reply; + + req.header.type = QEMUD_PKT_NETWORK_SET_AUTOSTART; + req.header.dataSize = sizeof(req.data.networkSetAutostartRequest); + req.data.networkSetAutostartRequest.autostart = (autostart != 0); + memmove(req.data.networkSetAutostartRequest.uuid, network->uuid, QEMUD_UUID_RAW_LEN); + + if (qemuProcessRequest(network->conn, NULL, &req, &reply) < 0) { + return -1; + } + + return 0; +} + static virDriver qemuDriver = { VIR_DRV_QEMU, "QEMU", @@ -1132,8 +1198,8 @@ static virDriver qemuDriver = { qemuUndefine, /* domainUndefine */ NULL, /* domainAttachDevice */ NULL, /* domainDetachDevice */ - NULL, /* domainGetAutostart */ - NULL, /* domainSetAutostart */ + qemuDomainGetAutostart, /* domainGetAutostart */ + qemuDomainSetAutostart, /* domainSetAutostart */ }; static virNetworkDriver qemuNetworkDriver = { @@ -1152,8 +1218,8 @@ static virNetworkDriver qemuNetworkDrive qemuNetworkDestroy, /* networkDestroy */ qemuNetworkDumpXML, /* networkDumpXML */ qemuNetworkGetBridgeName, /* networkGetBridgeName */ - NULL, /* networkGetAutostart */ - NULL, /* networkSetAutostart */ + qemuNetworkGetAutostart, /* networkGetAutostart */ + qemuNetworkSetAutostart, /* networkSetAutostart */ }; void qemuRegister(void) { --

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[Libvir] [patch 5/9] Add autostart support to virsh
by Mark McLoughlin 22 Feb '07

22 Feb '07

Add "autostart" and "net-autostart" commands Also, cleanup the "list" and "net-list" commands a bit and add autostart info to them Signed-off-by: Mark McLoughlin <markmc(a)redhat.com> Index: libvirt/src/virsh.c =================================================================== --- libvirt.orig/src/virsh.c +++ libvirt/src/virsh.c @@ -292,6 +292,51 @@ cmdHelp(vshControl * ctl, vshCmd * cmd) } /* + * "autostart" command + */ +static vshCmdInfo info_autostart[] = { + {"syntax", "autostart [--disable] <domain>"}, + {"help", gettext_noop("autostart a domain")}, + {"desc", + gettext_noop("Configure a domain to be automatically started at boot.")}, + {NULL, NULL} +}; + +static vshCmdOptDef opts_autostart[] = { + {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("domain name, id or uuid")}, + {"disable", VSH_OT_BOOL, 0, gettext_noop("disable autostarting")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdAutostart(vshControl * ctl, vshCmd * cmd) +{ + virDomainPtr dom; + char *name; + int autostart; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + if (!(dom = vshCommandOptDomain(ctl, cmd, "domain", &name))) + return FALSE; + + autostart = !vshCommandOptBool(cmd, "disable"); + + if (virDomainSetAutostart(dom, autostart) < 0) { + vshError(ctl, FALSE, _("Failed to %smark domain %s as autostarted"), + autostart ? "" : "un", name); + virDomainFree(dom); + return FALSE; + } + + vshPrint(ctl, _("Domain %s %smarked as autostarted\n"), + name, autostart ? "" : "un"); + + return TRUE; +} + +/* * "connect" command */ static vshCmdInfo info_connect[] = { @@ -473,53 +518,59 @@ cmdList(vshControl * ctl, vshCmd * cmd A qsort(&names[0], maxname, sizeof(char*), namesorter); } } - vshPrintExtra(ctl, "%3s %-20s %s\n", _("Id"), _("Name"), _("State")); - vshPrintExtra(ctl, "----------------------------------\n"); + vshPrintExtra(ctl, "%3s %-20s %-10s %-10s\n", _("Id"), _("Name"), _("State"), _("Autostart")); + vshPrintExtra(ctl, "---------------------------------------------\n"); for (i = 0; i < maxid; i++) { - int ret; virDomainInfo info; virDomainPtr dom = virDomainLookupByID(ctl->conn, ids[i]); + const char *state, *autostartStr; + int autostart = 0; /* this kind of work with domains is not atomic operation */ if (!dom) continue; - ret = virDomainGetInfo(dom, &info); - vshPrint(ctl, "%3d %-20s %s\n", + if (virDomainGetInfo(dom, &info) < 0) + state = _("no state"); + else + state = _N(vshDomainStateToString(info.state)); + + if (virDomainGetAutostart(dom, &autostart) < 0) + autostartStr = _("no autostart"); + else + autostartStr = autostart ? "yes" : "no"; + + vshPrint(ctl, "%3d %-20s %-10s %-10s\n", virDomainGetID(dom), virDomainGetName(dom), - ret < - 0 ? _("no state") : _N(vshDomainStateToString(info.state))); + state, + autostartStr); virDomainFree(dom); } for (i = 0; i < maxname; i++) { - int ret; - unsigned int id; virDomainInfo info; virDomainPtr dom = virDomainLookupByName(ctl->conn, names[i]); + const char *state, *autostartStr; + int autostart = 0; /* this kind of work with domains is not atomic operation */ if (!dom) { free(names[i]); continue; } - ret = virDomainGetInfo(dom, &info); - id = virDomainGetID(dom); - if (id == ((unsigned int)-1)) { - vshPrint(ctl, "%3s %-20s %s\n", - "-", - names[i], - ret < - 0 ? "no state" : vshDomainStateToString(info.state)); - } else { - vshPrint(ctl, "%3d %-20s %s\n", - id, - names[i], - ret < - 0 ? "no state" : vshDomainStateToString(info.state)); - } + if (virDomainGetInfo(dom, &info) < 0) + state = _("no state"); + else + state = _N(vshDomainStateToString(info.state)); + + if (virDomainGetAutostart(dom, &autostart) < 0) + autostartStr = _("no autostart"); + else + autostartStr = autostart ? "yes" : "no"; + + vshPrint(ctl, "%3s %-20s %s %s\n", "-", names[i], state, autostartStr); virDomainFree(dom); free(names[i]); @@ -1632,6 +1683,50 @@ cmdDomuuid(vshControl * ctl, vshCmd * cm return TRUE; } +/* + * "net-autostart" command + */ +static vshCmdInfo info_network_autostart[] = { + {"syntax", "net-autostart [--disable] <network>"}, + {"help", gettext_noop("autostart a network")}, + {"desc", + gettext_noop("Configure a network to be automatically started at boot.")}, + {NULL, NULL} +}; + +static vshCmdOptDef opts_network_autostart[] = { + {"network", VSH_OT_DATA, VSH_OFLAG_REQ, gettext_noop("network name or uuid")}, + {"disable", VSH_OT_BOOL, 0, gettext_noop("disable autostarting")}, + {NULL, 0, 0, NULL} +}; + +static int +cmdNetworkAutostart(vshControl * ctl, vshCmd * cmd) +{ + virNetworkPtr network; + char *name; + int autostart; + + if (!vshConnectionUsability(ctl, ctl->conn, TRUE)) + return FALSE; + + if (!(network = vshCommandOptNetwork(ctl, cmd, "network", &name))) + return FALSE; + + autostart = !vshCommandOptBool(cmd, "disable"); + + if (virNetworkSetAutostart(network, autostart) < 0) { + vshError(ctl, FALSE, _("Failed to %smark network %s as autostarted"), + autostart ? "" : "un", name); + virNetworkFree(network); + return FALSE; + } + + vshPrint(ctl, _("Network %s %smarked as autostarted\n"), + name, autostart ? "" : "un"); + + return TRUE; +} /* * "net-create" command @@ -1895,11 +1990,13 @@ cmdNetworkList(vshControl * ctl, vshCmd qsort(&inactiveNames[0], maxinactive, sizeof(char*), namesorter); } } - vshPrintExtra(ctl, "%-20s\n", _("Name")); - vshPrintExtra(ctl, "----------------------------------\n"); + vshPrintExtra(ctl, "%-20s %-10s %-10s\n", _("Name"), _("State"), _("Autostart")); + vshPrintExtra(ctl, "-----------------------------------------\n"); for (i = 0; i < maxactive; i++) { virNetworkPtr network = virNetworkLookupByName(ctl->conn, activeNames[i]); + const char *autostartStr; + int autostart = 0; /* this kind of work with networks is not atomic operation */ if (!network) { @@ -1907,13 +2004,22 @@ cmdNetworkList(vshControl * ctl, vshCmd continue; } - vshPrint(ctl, "%-20s\n", - virNetworkGetName(network)); + if (virNetworkGetAutostart(network, &autostart) < 0) + autostartStr = _("no autostart"); + else + autostartStr = autostart ? "yes" : "no"; + + vshPrint(ctl, "%-20s %-10s %-10s\n", + virNetworkGetName(network), + _("active"), + autostartStr); virNetworkFree(network); free(activeNames[i]); } for (i = 0; i < maxinactive; i++) { virNetworkPtr network = virNetworkLookupByName(ctl->conn, inactiveNames[i]); + const char *autostartStr; + int autostart = 0; /* this kind of work with networks is not atomic operation */ if (!network) { @@ -1921,8 +2027,15 @@ cmdNetworkList(vshControl * ctl, vshCmd continue; } - vshPrint(ctl, "%-20s\n", - inactiveNames[i]); + if (virNetworkGetAutostart(network, &autostart) < 0) + autostartStr = _("no autostart"); + else + autostartStr = autostart ? "yes" : "no"; + + vshPrint(ctl, "%-20s %s %s\n", + inactiveNames[i], + _("inactive"), + autostartStr); virNetworkFree(network); free(inactiveNames[i]); @@ -2268,6 +2381,7 @@ cmdQuit(vshControl * ctl, vshCmd * cmd A * Commands */ static vshCmdDef commands[] = { + {"autostart", cmdAutostart, opts_autostart, info_autostart}, {"connect", cmdConnect, opts_connect, info_connect}, {"console", cmdConsole, opts_console, info_console}, {"create", cmdCreate, opts_create, info_create}, @@ -2282,6 +2396,7 @@ static vshCmdDef commands[] = { {"dumpxml", cmdDumpXML, opts_dumpxml, info_dumpxml}, {"help", cmdHelp, opts_help, info_help}, {"list", cmdList, opts_list, info_list}, + {"net-autostart", cmdNetworkAutostart, opts_network_autostart, info_network_autostart}, {"net-create", cmdNetworkCreate, opts_network_create, info_network_create}, {"net-define", cmdNetworkDefine, opts_network_define, info_network_define}, {"net-destroy", cmdNetworkDestroy, opts_network_destroy, info_network_destroy}, --

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