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[libvirt] [PATCH] Fix linking to DTrace probes file
by Daniel P. Berrange 28 May '12

28 May '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Pushing as a build-fix There was no rule forcing libvirt_qemu_probes.o to be built before libvirt_qemu_probes.lo was used. Also libvirtd was still referencing the .o file, rather than the .lo file. Both the .lo and .o file must be listed as DEPENDENCIES, otherwise libtool will unhelpfully delete the .o file once the .lo file is created. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- daemon/Makefile.am | 4 ++-- src/Makefile.am | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/daemon/Makefile.am b/daemon/Makefile.am index 5d4c1a7..e049942 100644 --- a/daemon/Makefile.am +++ b/daemon/Makefile.am @@ -112,7 +112,7 @@ libvirtd_LDADD = \ $(POLKIT_LIBS) if WITH_DTRACE_PROBES -libvirtd_LDADD += ../src/libvirt_probes.o +libvirtd_LDADD += ../src/libvirt_probes.lo endif libvirtd_LDADD += \ @@ -122,7 +122,7 @@ if ! WITH_DRIVER_MODULES if WITH_QEMU libvirtd_LDADD += ../src/libvirt_driver_qemu.la if WITH_DTRACE_PROBES - libvirtd_LDADD += ../src/libvirt_qemu_probes.o + libvirtd_LDADD += ../src/libvirt_qemu_probes.lo endif endif diff --git a/src/Makefile.am b/src/Makefile.am index 1f98bac..fe86820 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1247,7 +1247,7 @@ libvirt_la_DEPENDENCIES = $(libvirt_la_BUILT_LIBADD) $(LIBVIRT_SYMBOL_FILE) if WITH_DTRACE_PROBES libvirt_la_BUILT_LIBADD += libvirt_probes.lo -libvirt_la_DEPENDENCIES += libvirt_probes.o +libvirt_la_DEPENDENCIES += libvirt_probes.lo libvirt_probes.o nodist_libvirt_la_SOURCES = libvirt_probes.h if WITH_REMOTE $(REMOTE_DRIVER_GENERATED): libvirt_probes.h @@ -1258,7 +1258,7 @@ BUILT_SOURCES += libvirt_probes.h libvirt_probes.stp libvirt_functions.stp if WITH_QEMU libvirt_driver_qemu_la_LIBADD += libvirt_qemu_probes.lo nodist_libvirt_driver_qemu_la_SOURCES = libvirt_qemu_probes.h -libvirt_driver_qemu_la_DEPENDENCIES = libvirt_qemu_probes.o +libvirt_driver_qemu_la_DEPENDENCIES = libvirt_qemu_probes.lo libvirt_qemu_probes.o $(libvirt_driver_qemu_la_SOURCES): libvirt_qemu_probes.h endif -- 1.7.7.6

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[libvirt] [PATCH] docs: typo in acceleration element
by Martin Kletzander 28 May '12

28 May '12

"accel3d" was specified twice, the second one is obviously "accel2d" --- Pushed under "trivial" rule. docs/formatdomain.html.in | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 3875167..5d4cc36 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -3098,7 +3098,7 @@ qemu-kvm -net nic,model=? /dev/null <devices> <video> <model type='vga' vram='8192' heads='1'> - <acceleration accel3d='yes' accel3d='yes'/> + <acceleration accel3d='yes' accel2d='yes'/> </model> </video> </devices> -- 1.7.8.6

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[libvirt] New Bugzilla components for upstream bug reporting
by Daniel P. Berrange 28 May '12

28 May '12

Historically we have told people to report all upstream bugs against Product: Virtualization Tools Component: libvirt We now provide much more than just the core libvirt package though. Thus we have created a large number of new components for reporting upstream bugs against, one for each package we distribute: Component: libvirt-appdev-guide - Libvirt application development guide Component: libvirt-glib - Libvirt GLib, GConfig & GObject libraries Component: libvirt-cim - Libvirt CIM provider Component: libvirt-csharp - Libvirt C# language bindings Component: libvirt-java - Libvirt Java language bindings Component: libvirt-ocaml - Libvirt OCaml language bindings Component: libvirt-perl - Libvirt Perl language bindings Component: libvirt-php - Libvirt PHP language bindings Component: libvirt-publican - Libvirt Publican documentation templates Component: libvirt-sandbox - Libvirt application sandbox toolkit Component: libvirt-snmp - Libvirt SNMP agent Component: libvirt-tck - Libvirt TCK (Technology Compatibility Kit) Component: libvirt-test-API - Libvirt test API Component: libvirt-virshcmdref - Libvirt virsh command reference Component: ruby-libvirt - Libvirt Ruby language bindings The bug reporting form is here: https://bugzilla.redhat.com/enter_bug.cgi?product=Virtualization%20Tools NB, if you are using a binary package provided by your OS vendor, then you should use their bug tracker for reporting bugs first. Feel free to also report it to the libvirt upstream bug tracker at the same time though. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|

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[libvirt] [PATCH] maint: avoid new automake warning about AM_PROG_CC_STDC
by Jim Meyering 26 May '12

26 May '12

When I built libvirt recently, I saw a warning go by: (with cutting edge automake-1.12a) configure.ac:83: warning: macro 'AM_PROG_CC_STDC' not found in library This fixes it: >From 8f66a7e7f12efa2a60754f06627e94d96030ac78 Mon Sep 17 00:00:00 2001 From: Jim Meyering <meyering(a)redhat.com> Date: Sat, 26 May 2012 11:21:47 +0200 Subject: [PATCH] maint: avoid new automake warning about AM_PROG_CC_STDC * configure.ac (AM_PROG_CC_STDC): Stop using this macro. It provokes warnings from newer automake and is superseded by autoconf's AC_PROG_CC, which we're already using. --- configure.ac | 1 - 1 file changed, 1 deletion(-) diff --git a/configure.ac b/configure.ac index 5d06b47..54f51ee 100644 --- a/configure.ac +++ b/configure.ac @@ -80,7 +80,6 @@ dnl Checks for C compiler. AC_PROG_CC AC_PROG_INSTALL AC_PROG_CPP -AM_PROG_CC_STDC gl_EARLY gl_INIT -- 1.7.10.2.565.gbd578b5

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[libvirt] [PATCH] qemu: allow snapshotting of sheepdog and rbd disks
by Josh Durgin 26 May '12

26 May '12

Signed-off-by: Josh Durgin <josh.durgin(a)dreamhost.com> --- .gnulib | 2 +- src/qemu/qemu_driver.c | 14 ++++++++++---- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/.gnulib b/.gnulib index d5612c7..6b93d00 160000 --- a/.gnulib +++ b/.gnulib @@ -1 +1 @@ -Subproject commit d5612c714c87555f1059d71d347e20271dced322 +Subproject commit 6b93d00f5410ec183e3a70ebf8e418e3b1bb0191 diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 7e6d59c..fc537df 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -9571,12 +9571,18 @@ qemuDomainSnapshotIsAllowed(virDomainObjPtr vm) * that succeed as well */ for (i = 0; i < vm->def->ndisks; i++) { - if ((vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_LUN) || - (vm->def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_DISK && - STRNEQ_NULLABLE(vm->def->disks[i]->driverType, "qcow2"))) { + virDomainDiskDefPtr disk = vm->def->disks[i]; + if (disk->type == VIR_DOMAIN_DISK_TYPE_NETWORK && + (disk->protocol == VIR_DOMAIN_DISK_PROTOCOL_SHEEPDOG || + disk->protocol == VIR_DOMAIN_DISK_PROTOCOL_RBD)) + continue; + + if ((disk->device == VIR_DOMAIN_DISK_DEVICE_LUN) || + (disk->device == VIR_DOMAIN_DISK_DEVICE_DISK && + STRNEQ_NULLABLE(disk->driverType, "qcow2"))) { qemuReportError(VIR_ERR_OPERATION_INVALID, _("Disk '%s' does not support snapshotting"), - vm->def->disks[i]->src); + disk->src); return false; } } -- 1.7.5.4

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[libvirt] [PATCH 00/10 v2] Enable loadable modules for libvirtd
by Daniel P. Berrange 25 May '12

25 May '12

A simple rebase of https://www.redhat.com/archives/libvir-list/2012-April/msg00045.html For a long timer we've had the ability to build each libvirt driver as a loadable module. We have never used this by default and as a result it constantly bit-rots. This series fixes various bugs, and then enables it by default in configure. It also makes the PRMs use the loadable modules, adding new new sub-RPMs for each module. We can now finally install minimal libvirt binaries for each hypervisor. ie yum install libvirt-daemon-kvm will not pull in Xen libraries! Changes in v2: - Fix build with dtrace - Rebase to latest GIT master configure.ac | 20 ++ daemon/Makefile.am | 5 daemon/libvirtd.c | 35 ++++ libvirt.spec.in | 298 +++++++++++++++++++++++++++++++++++++++- src/Makefile.am | 156 ++++++-------------- src/driver.c | 20 ++ src/driver.h | 1 src/internal.h | 2 src/libvirt.c | 129 +++++------------ src/libvirt_driver_modules.syms | 1 src/libvirt_esx.syms | 7 src/libvirt_openvz.syms | 7 src/libvirt_private.syms | 41 +++++ src/libvirt_probes.d | 21 -- src/libvirt_qemu_probes.d | 21 ++ src/qemu/qemu_monitor.c | 4 src/qemu/qemu_monitor_json.c | 4 src/qemu/qemu_monitor_text.c | 4 tests/Makefile.am | 91 ++++++------ tests/virdrivermoduletest.c | 104 +++++++++++++ 20 files changed, 705 insertions(+), 266 deletions(-)

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[libvirt] [PATCH] build: silence libtool warning
by Eric Blake 25 May '12

25 May '12

Libtool supports linking directly against .o files on some platforms (such as Linux), which happens to be the only place where we are actually doing that (for the dtrace-generated probes.o files). However, it raises a big stink about the non-portability, even though we don't attempt it on platforms where it would actually fail: CCLD libvirt_driver_qemu.la *** Warning: Linking the shared library libvirt_driver_qemu.la against the non-libtool *** objects libvirt_qemu_probes.o is not portable! This shuts libtool up by creating a proper .lo file that matches what libtool normally expects. * src/Makefile.am (%_probes.lo): New rule. (libvirt_probes.stp, libvirt_qemu_probes.stp): Simplify into... (%_probes.stp): ...shorter rule. (CLEANFILES): Clean new .lo files. (libvirt_la_BUILT_LIBADD, libvirt_driver_qemu_la_LIBADD) (libvirt_lxc_LDADD, virt_aa_helper_LDADD): Link against .lo file. * tests/Makefile.am (PROBES_O, qemu_LDADDS): Likewise. --- I got tired enough of the warning to figure out how to shut it up; libtool was rather particular about parsing the first two lines of comments embedded in the .lo file before declaring it to have correct syntax. However, I got stumped by the next round of warnings: CCLD qemuxml2xmltest *** Warning: Linking the executable qemuxml2xmltest against the loadable module *** libvirt_driver_qemu.so is not portable! Anyone have a clue on that one? Would a convenience library be the key? src/Makefile.am | 28 ++++++++++++++++++---------- tests/Makefile.am | 4 ++-- 2 files changed, 20 insertions(+), 12 deletions(-) diff --git a/src/Makefile.am b/src/Makefile.am index bdb0ef4..0b20f1f 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -1246,7 +1246,7 @@ libvirt_la_CFLAGS = -DIN_LIBVIRT $(AM_CFLAGS) libvirt_la_DEPENDENCIES = $(libvirt_la_BUILT_LIBADD) $(LIBVIRT_SYMBOL_FILE) if WITH_DTRACE_PROBES -libvirt_la_BUILT_LIBADD += libvirt_probes.o +libvirt_la_BUILT_LIBADD += libvirt_probes.lo libvirt_la_DEPENDENCIES += libvirt_probes.o nodist_libvirt_la_SOURCES = libvirt_probes.h if WITH_REMOTE @@ -1256,7 +1256,7 @@ endif WITH_REMOTE BUILT_SOURCES += libvirt_probes.h libvirt_probes.stp libvirt_functions.stp if WITH_QEMU -libvirt_driver_qemu_la_LIBADD += libvirt_qemu_probes.o +libvirt_driver_qemu_la_LIBADD += libvirt_qemu_probes.lo nodist_libvirt_driver_qemu_la_SOURCES = libvirt_qemu_probes.h libvirt_driver_qemu_la_DEPENDENCIES = libvirt_qemu_probes.o @@ -1272,6 +1272,15 @@ tapset_DATA = libvirt_probes.stp libvirt_qemu_probes.stp libvirt_functions.stp %_probes.o: %_probes.d $(AM_V_GEN)$(DTRACE) -o $@ -G -s $< +%_probes.lo: %_probes.o + $(AM_V_GEN)printf %s\\n \ + '# $@ - a libtool object file' \ + '# Generated by libtool (GNU libtool) 2.4' \ + '# Actually generated by Makefile.am, in order to shut up libtool' \ + "pic_object='$<'" \ + "non_pic_object='$<'" \ + > $@ + RPC_PROBE_FILES = $(srcdir)/rpc/virnetprotocol.x \ $(srcdir)/rpc/virkeepaliveprotocol.x \ $(srcdir)/remote/remote_protocol.x \ @@ -1280,14 +1289,13 @@ RPC_PROBE_FILES = $(srcdir)/rpc/virnetprotocol.x \ libvirt_functions.stp: $(RPC_PROBE_FILES) $(srcdir)/rpc/gensystemtap.pl $(AM_V_GEN)perl -w $(srcdir)/rpc/gensystemtap.pl $(RPC_PROBE_FILES) > $@ -libvirt_probes.stp: libvirt_probes.d $(srcdir)/dtrace2systemtap.pl - $(AM_V_GEN)perl -w $(srcdir)/dtrace2systemtap.pl $(bindir) $(sbindir) $(libdir) $< > $@ - -libvirt_qemu_probes.stp: libvirt_qemu_probes.d $(srcdir)/dtrace2systemtap.pl - $(AM_V_GEN)perl -w $(srcdir)/dtrace2systemtap.pl $(bindir) $(sbindir) $(libdir) $< > $@ +%_probes.stp: %_probes.d $(srcdir)/dtrace2systemtap.pl + $(AM_V_GEN)perl -w $(srcdir)/dtrace2systemtap.pl \ + $(bindir) $(sbindir) $(libdir) $< > $@ -CLEANFILES += libvirt_probes.h libvirt_probes.o \ +CLEANFILES += libvirt_probes.h libvirt_probes.o libvirt_probes.lo \ libvirt_qemu_probes.h libvirt_qemu_probes.o \ + libvirt_qemu_probes.lo\ libvirt_functions.stp libvirt_probes.stp \ libvirt_qemu_probes.stp endif @@ -1479,7 +1487,7 @@ libvirt_lxc_LDADD = $(CAPNG_LIBS) $(YAJL_LIBS) \ $(RT_LIBS) $(DBUS_LIBS) \ ../gnulib/lib/libgnu.la if WITH_DTRACE_PROBES -libvirt_lxc_LDADD += libvirt_probes.o +libvirt_lxc_LDADD += libvirt_probes.lo endif if WITH_SECDRIVER_SELINUX libvirt_lxc_LDADD += $(SELINUX_LIBS) @@ -1524,7 +1532,7 @@ virt_aa_helper_LDADD = \ libvirt_util.la \ ../gnulib/lib/libgnu.la if WITH_DTRACE_PROBES -virt_aa_helper_LDADD += libvirt_probes.o +virt_aa_helper_LDADD += libvirt_probes.lo endif virt_aa_helper_CFLAGS = \ -I$(top_srcdir)/src/conf \ diff --git a/tests/Makefile.am b/tests/Makefile.am index 24818b1..d1106cf 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -31,7 +31,7 @@ endif PROBES_O = if WITH_DTRACE_PROBES -PROBES_O += ../src/libvirt_probes.o +PROBES_O += ../src/libvirt_probes.lo endif LDADDS = \ @@ -295,7 +295,7 @@ if WITH_NETWORK qemu_LDADDS += ../src/libvirt_driver_network.la endif if WITH_DTRACE_PROBES -qemu_LDADDS += ../src/libvirt_qemu_probes.o +qemu_LDADDS += ../src/libvirt_qemu_probes.lo endif qemu_LDADDS += $(LDADDS) -- 1.7.7.6

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[libvirt] [PATCH 0/3] Simplify error reporting int->string conversions
by Daniel P. Berrange 25 May '12

25 May '12

Currently the error reporting code has some horrible giant switch statements for doing integer to string conversions on error domains and error numbers. Replace this with the more traditional approach of using VIR_ENUM helpers

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[libvirt] [PATCH] Remove last usageof PATH_MAX and ban its future use
by Daniel P. Berrange 25 May '12

25 May '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Remove a number of pointless checks against PATH_MAX and add a syntax-check rule to prevent its use in future --- cfg.mk | 5 +++++ src/security/virt-aa-helper.c | 4 ++-- src/storage/storage_backend_scsi.c | 2 +- src/xenxs/xen_xm.c | 2 -- tools/virsh.c | 7 ++++--- 5 files changed, 12 insertions(+), 8 deletions(-) diff --git a/cfg.mk b/cfg.mk index 07fb7b2..534dc67 100644 --- a/cfg.mk +++ b/cfg.mk @@ -408,6 +408,11 @@ sc_prohibit_VIR_ERR_NO_MEMORY: halt='use virReportOOMError, not V'IR_ERR_NO_MEMORY \ $(_sc_search_regexp) +sc_prohibit_PATH_MAX: + @prohibit='\<P''ATH_MAX\>' \ + halt='dynamically allocate paths, do not use P'ATH_MAX \ + $(_sc_search_regexp) + # Use a subshell for each function, to give the optimal warning message. include $(srcdir)/Makefile.nonreentrant sc_prohibit_nonreentrant: diff --git a/src/security/virt-aa-helper.c b/src/security/virt-aa-helper.c index a5cb85c..7b41d38 100644 --- a/src/security/virt-aa-helper.c +++ b/src/security/virt-aa-helper.c @@ -473,7 +473,7 @@ valid_name(const char *name) * used to subvert the profile */ const char *bad = " /[]*"; - if (strlen(name) == 0 || strlen(name) > PATH_MAX - 1) + if (strlen(name) == 0) return -1; if (strcspn(name, bad) != strlen(name)) @@ -544,7 +544,7 @@ valid_path(const char *path, const bool readonly) "/sys/devices/pci" /* for hostdev pci devices */ }; - if (path == NULL || strlen(path) > PATH_MAX - 1) { + if (path == NULL) { vah_error(NULL, 0, _("bad pathname")); return -1; } diff --git a/src/storage/storage_backend_scsi.c b/src/storage/storage_backend_scsi.c index ae1e19f..465d557 100644 --- a/src/storage/storage_backend_scsi.c +++ b/src/storage/storage_backend_scsi.c @@ -251,7 +251,7 @@ virStorageBackendSCSINewLun(virStoragePoolObjPtr pool, goto free_vol; } - if (STREQLEN(devpath, vol->target.path, PATH_MAX) && + if (STREQ(devpath, vol->target.path) && !(STREQ(pool->def->target.path, "/dev") || STREQ(pool->def->target.path, "/dev/"))) { diff --git a/src/xenxs/xen_xm.c b/src/xenxs/xen_xm.c index 93a26f9..bdf46bd 100644 --- a/src/xenxs/xen_xm.c +++ b/src/xenxs/xen_xm.c @@ -501,8 +501,6 @@ xenParseXM(virConfPtr conf, int xendConfigVersion, /* Extract the source file path*/ if (!(offset = strchr(head, ','))) goto skipdisk; - if ((offset - head) >= (PATH_MAX-1)) - goto skipdisk; if (offset == head) { disk->src = NULL; /* No source file given, eg CDROM with no media */ diff --git a/tools/virsh.c b/tools/virsh.c index ffe6ed2..4492a2b 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -15542,11 +15542,12 @@ editWriteToTempFile (vshControl *ctl, const char *doc) const char *tmpdir; int fd; - ret = vshMalloc(ctl, PATH_MAX); - tmpdir = getenv ("TMPDIR"); if (!tmpdir) tmpdir = "/tmp"; - snprintf (ret, PATH_MAX, "%s/virshXXXXXX.xml", tmpdir); + if (virAsprintf(&ret, "%s/virshXXXXXX.xml", tmpdir) < 0) { + vshError(ctl, "%s", _("out of memory")); + return NULL; + } fd = mkstemps(ret, 4); if (fd == -1) { vshError(ctl, _("mkstemps: failed to create temporary file: %s"), -- 1.7.10.1

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[libvirt] [PATCH 0/4] Improve testing of augeas lens & fix lens bugs
by Daniel P. Berrange 25 May '12

25 May '12

This improves testing of the augeas lens to ensure that all possible config options are handled

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