Michal Privoznik [Wed, 15 Jul 2020 11:48:46 +0000 (13:48 +0200)]
virNetSocketCheckProtocols: Confirm IPv4 by lookup too
Historically, if we found an interface with an IPv6 address we
did not blindly trust that host is IPv6 capable (as in we can
successfully translate IPv4 addresses) but used getaddrinfo() to
confirm it. Turns out, we have use the same argument for IPv4.
For instance, in an namespace created by the following steps,
getaddrinfo("127.0.0.1", ...) fails (demonstrating by "Socket
TCP/IPv4 Accept" test case failing in virnetsockettest):
unshare -n
ip link set lo up
ip link add dummy0 type dummy
ip link set dummy0 up
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Wed, 15 Jul 2020 11:48:44 +0000 (13:48 +0200)]
virNetSocketCheckProtocols: Separate out checking family via getaddrinfo()
The virNetSocketCheckProtocols() function is supposed to tell
caller whether IPv4 and/or IPv6 is supported on the system. In
the initial round, it uses getifaddrs() to see if an interface
has IPv4/IPv6 address assigned and then to double check IPv6 it
uses getaddrinfo() to lookup IPv6 loopback address. Separate out
this latter code because it is going to be reused.
Since the original code lived under an #ifdef and the new
function doesn't it is marked as unused - because on some systems
it may be so.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Wed, 15 Jul 2020 10:32:48 +0000 (12:32 +0200)]
Substitute security_context_t with char *
Historically, we've used security_context_t for variables passed
to libselinux APIs. But almost 7 years ago, libselinux developers
admitted in their API that in fact, it's just a 'char *' type
[1]. Ever since then the APIs accept 'char *' instead, but they
kept the old alias just for API stability. Well, not anymore [2].
Andrea Bolognani [Tue, 14 Jul 2020 16:49:41 +0000 (18:49 +0200)]
ci: Drop Debian 9 jobs
The existing cross-compilation jobs are carefully redistributed
among Debian 10 and Debian sid to ensure we don't use the latter
for aarch64, mipsel or mips64el, since those architectures are
currently broken.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Stefan Berger [Thu, 9 Jul 2020 20:46:19 +0000 (16:46 -0400)]
qemu: Set SPAPR TPM default to 2.0 and prevent 1.2 choice
The firmware (SLOF) on QEMU for ppc64 does not support TPM 1.2, so
prevent the choice of TPM 1.2 when the SPAPR device model is chosen
and use a default of '2.0' (TPM 2) for the backend.
This patch addresses BZ 1781913: https://bugzilla.redhat.com/show_bug.cgi?id=1781913
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Andrea Bolognani [Tue, 14 Jul 2020 12:38:17 +0000 (14:38 +0200)]
docs: platforms: Simplify support policy
We discuss Linux, FreeBSD and macOS separately, and we even go as
far as splitting Linux distros into short-lifetime and long-lifetime,
when ultimately the same two priciples apply everywhere: we don't
want to support a platform longer than its vendor does, and in cases
where the vendor support is extremely long we need to have a
time-based escape hatch.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Ignoring unknown MSRs using <features> element
<msrs unknown='ignore'/> was supported for quite some already,
so add documentation for it for completeness of flags coverage,
as some guests can be extra picky about flags passed to bhyve,
and it's useful to know how to control those.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
qemu_domain: remove passing `qemuDomainObjPrivatePtr` as param
`qemuDomainObjPrivatePtr` parameter was avoided being passed
as a paramter in functions `qemuDomainObjPrivateXMLParseJob`
and `qemuDomainObjPrivateXMLFormatJob`, as we already pass
`virDomainObjPtr`, which can be used to get `privateData`
pointer.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Andrea Bolognani [Tue, 14 Jul 2020 09:45:01 +0000 (11:45 +0200)]
ci: Refresh Dockerfiles
All targets get cpanm, which is now part of the base system, and
xz is now installed explicitly instead of relying on it being either
present by default or dragged in indirectly.
The corresponding libvirt-ci commit is 8920e8f408ba.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Jin Yan [Mon, 13 Jul 2020 19:24:04 +0000 (21:24 +0200)]
qemu: fix memleak in qemuDomainAttachDeviceLive()
During disk hot plugging, qemuDomainAttachDeviceLive() adds the new
disk to the device list of the VM object. However, hot plugging
cdroms and floppies only updates the src variable of the original
disk device, so the newly generated disk object needs to be freed.
Signed-off-by: Jin Yan <jinyan12@huawei.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is only used in the ESX driver where, when set to "static", it will
ignore all the checks libvirt does about the origin of the MAC address
(whether or not it's in a VMWare OUI) and forward the original one to
the ESX server telling it not to check it either.
This allows keeping a deterministic MAC address which can be useful for
licensed software which might dislike changes.
Signed-off-by: Bastien Orivel <bastien.orivel@diateam.net> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This document describes briefly how Libvirt migration internals
works, complementing the info available in migration.html.in.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use g_autofree on strings and remove the 'done' label since it's
now unneeded.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Laine Stump [Thu, 9 Jul 2020 22:36:48 +0000 (18:36 -0400)]
docs: point out that locals should be defined at the top of a block of code
Although we have nothing in make syntax-check to enforce this, and
apparently there are places where it isn't the case (according to
Dan), we should discourage the practice of defining new variables in
the middle of a block of code.
Signed-off-by: Laine Stump <laine@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
qemu_domain: moved qemuDomainNamespace to `qemu_domain`
While moving the code, qemuDomainNamespace also was moved
to `qemu_domainjob`. Hence it is moved back to `qemu_domain`
where it will be more appropriate.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Wed, 20 May 2020 20:52:05 +0000 (22:52 +0200)]
wireshark: fix compilation errors
With meson introduction which is using the same CFLAGS for the whole
project some compilation errors were discovered. The wireshark plugin
library is the only one in tools directory that is not using AM_CFLAGS.
With the AM_CFLAGS we get these errors:
../../tools/wireshark/src/packet-libvirt.c: In function 'dissect_libvirt_fds':
../../tools/wireshark/src/packet-libvirt.c:348:31: error: unused parameter 'tvb' [-Werror=unused-parameter]
348 | dissect_libvirt_fds(tvbuff_t *tvb, gint start, gint32 nfds)
| ~~~~~~~~~~^~~
../../tools/wireshark/src/packet-libvirt.c:348:41: error: unused parameter 'start' [-Werror=unused-parameter]
348 | dissect_libvirt_fds(tvbuff_t *tvb, gint start, gint32 nfds)
| ~~~~~^~~~~
../../tools/wireshark/src/packet-libvirt.c:348:55: error: unused parameter 'nfds' [-Werror=unused-parameter]
348 | dissect_libvirt_fds(tvbuff_t *tvb, gint start, gint32 nfds)
| ~~~~~~~^~~~
At top level:
../../tools/wireshark/src/packet-libvirt.c:64:5: error: 'dissect_xdr_bool' defined but not used [-Werror=unused-function]
64 | dissect_xdr_##xtype(tvbuff_t *tvb, proto_tree *tree, XDR *xdrs, int hf) \
| ^~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:88:1: note: in expansion of macro 'XDR_PRIMITIVE_DISSECTOR'
88 | XDR_PRIMITIVE_DISSECTOR(bool, bool_t, boolean)
| ^~~~~~~~~~~~~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:64:5: error: 'dissect_xdr_float' defined but not used [-Werror=unused-function]
64 | dissect_xdr_##xtype(tvbuff_t *tvb, proto_tree *tree, XDR *xdrs, int hf) \
| ^~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:86:1: note: in expansion of macro 'XDR_PRIMITIVE_DISSECTOR'
86 | XDR_PRIMITIVE_DISSECTOR(float, gfloat, float)
| ^~~~~~~~~~~~~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:64:5: error: 'dissect_xdr_short' defined but not used [-Werror=unused-function]
64 | dissect_xdr_##xtype(tvbuff_t *tvb, proto_tree *tree, XDR *xdrs, int hf) \
| ^~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c:80:1: note: in expansion of macro 'XDR_PRIMITIVE_DISSECTOR'
80 | XDR_PRIMITIVE_DISSECTOR(short, gint16, int)
| ^~~~~~~~~~~~~~~~~~~~~~~
../../tools/wireshark/src/packet-libvirt.c: In function 'dissect_libvirt_message':
../../tools/wireshark/src/packet-libvirt.c:423:34: error: null pointer dereference [-Werror=null-dereference]
423 | vir_xdr_dissector_t xd = find_payload_dissector(proc, type, get_program_data(prog, VIR_PROGRAM_DISSECTORS),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
424 | *(gsize *)get_program_data(prog, VIR_PROGRAM_DISSECTORS_LEN));
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Pavel Hrdina [Thu, 18 Jun 2020 22:44:07 +0000 (00:44 +0200)]
m4: virt-xdr: rewrite XDR check
The current code to check XDR support was obsolete and way to
complicated.
On linux we can use pkg-config to check for libtirpc and have
the CFLAGS and LIBS configured by it as well.
On MinGW there is portablexdr library which installs header files
directly into system include directory.
On FreeBSD and macOS XDR functions are part of libc so there is
no library needed, we just need to call AM_CONDITIONAL to silence
configure which otherwise complains about missing WITH_XDR.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Pavel Hrdina [Thu, 25 Jun 2020 12:10:57 +0000 (14:10 +0200)]
docs: drop %.png: %.fig rule
convert bin is part of ImageMagick package and uses uniconvertor to
create png file from fig files.
Unfortunately uniconvertor is python2 only and not available in most
recent distributions which makes the convert command fail with:
sh: uniconvertor: command not found
/usr/bin/mv: cannot stat '/tmp/magick-1397138DRT8Pzx4Qmoc.svg': No such file or directory
convert: delegate failed `'uniconvertor' '%i' '%o.svg'; /usr/bin/mv '%o.svg' '%o'' @ error/delegate.c/InvokeDelegate/1958.
convert: unable to open file `/tmp/magick-1397138S8ARueJXLXkc': No such file or directory @ error/constitute.c/ReadImage/605.
convert: no images defined `docs/migration-managed-direct.png' @ error/convert.c/ConvertImageCommand/3226.
It looks like that there are plans to somehow port uniconvertor into
python3 but as part of different project color-picker but the job is
far from complete.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Suggested-by: Erik Skultety <eskultet@redhat.com> Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
secdrivers: Rename @stdin_path argument of virSecurityDomainSetAllLabel()
The argument (if not NULL) points to the file the domain is
restoring from. On QEMU command line this used to be '-incoming
$path', but we've switched to passing FD ages ago and thus this
argument is used only in AppArmor (which loads the profile on
domain start). Anyway, the argument does not refer to stdin,
rename it to 'incomingPath' then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
Michal Privoznik [Sat, 27 Jun 2020 04:28:17 +0000 (06:28 +0200)]
qemu: Use qemuSecuritySetSavedStateLabel() to label restore path
Currently, when restoring from a domain the path that the domain
restores from is labelled under qemuSecuritySetAllLabel() (and after
v6.3.0-rc1~108 even outside transactions). While this grants QEMU
the access, it has a flaw, because once the domain is restored, up
and running then qemuSecurityDomainRestorePathLabel() is called,
which is not real counterpart. In case of DAC driver the
SetAllLabel() does nothing with the restore path but
RestorePathLabel() does - it chown()-s the file back and since there
is no original label remembered, the file is chown()-ed to
root:root. While the apparent solution is to have DAC driver set the
label (and thus remember the original one) in SetAllLabel(), we can
do better.
Turns out, we are opening the file ourselves (because it may live on
a root squashed NFS) and then are just passing the FD to QEMU. But
this means, that we don't have to chown() the file at all, we need
to set SELinux labels and/or add the path to AppArmor profile.
And since we want to restore labels right after QEMU is done loading
the migration stream (we don't want to wait until
qemuSecurityRestoreAllLabel()), the best way to approach this is to
have separate APIs for labelling and restoring label on the restore
file.
I will investigate whether AppArmor can use the SavedStateLabel()
API instead of passing the restore path to SetAllLabel().
These APIs don't use namespaces because the
virSecurityManagerSetSavedStateLabel() runs
when the namespace doesn't exist yet and thus
the virSecurityManagerRestoreSavedStateLabel()
has to run without namespace too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
These APIs were removed/renamed in v6.5.0-rc1~142 and v6.5.0-rc1~141
because they deemed unused. And if it wasn't for the RFE [1] things
would stay that way.
The RFE asks for us to not change DAC ownership on the file a domain is
restoring from. We have been doing that for ages (if not forever),
nevertheless it's annoying because if the restore file is on an NFS
remembering owner won't help - NFS doesn't support XATTRs yet. But more
importantly, there is no need for us to chown() the file because when
restoring the domain the file is opened and the FD is then passed to
QEMU. Therefore, we really need only to set SELinux and AppArmor.
The difference to the original code is that secdrivers are now
not required to provide dummy implementation to avoid
virReportUnsupportedError(). The callback is run if it exists, if
it doesn't zero is returned without any error.
When locking files for metadata change, we open() them for R/W
access. The write access is needed because we want to acquire
exclusive (write) lock (to mutually exclude with other daemons
trying to modify XATTRs on the same file). Anyway, the open()
might fail if the file lives on a RO filesystem. Well, if that's
the case, ignore the error and continue with the next file on the
list. We won't change any seclabel on the file anyway - there is
nothing to remember then.
Reported-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Pavel Hrdina [Wed, 27 May 2020 11:37:54 +0000 (13:37 +0200)]
tests: commandhelper: change how we detect if running as daemon
The old code works correctly with make and running directly from shell
but it failed with Meson test suite where session ID and process group
are the same in both cases.
What changes in both cases is parent process ID so use that instead of
session ID.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Wed, 24 Jun 2020 09:25:58 +0000 (11:25 +0200)]
src: util: Makefile: drop undefined OPENPTY_LIBS
Commit <f650e86703847af544762d02f79c70131ff7fbab> added check for
openpty function from util library using AC_CHECK_LIB(). However, that
macro doesn't define OPENPTY_LIBS, it only defines WITH_LIBUTIL and
prepends -lutil into LIBS for the whole project.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Mon, 4 May 2020 15:28:54 +0000 (17:28 +0200)]
src: remove unnecessary -I$(srcdir)/secret include
Commit <894556ca813ad3c4ebb01083b7971d73b4f53c8b> moved function
virSecretGetSecretString out of secret directory but forgot to update
CFLAGS in places where the include is no longer needed.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Mon, 29 Jun 2020 15:36:45 +0000 (17:36 +0200)]
po: change the format of POTFILES.in
There is no need to provide relative paths to the current directory if
we provide search paths using --directory option for xgettext.
In addition it will make libvirt.pot file look cleaner as it will not
contain relative paths to current directory. It improves the situation
for developers which are using different build path as that would
change the relative path in libvirt.pot as well. After this patch
it will not happen anymore.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Tue, 23 Jun 2020 22:15:15 +0000 (00:15 +0200)]
m4: virt-sanlock: drop check for sanlock_killpath()
Function sanlock_killpath() was introduced in 2.4 version and had
modified one of the arguments from `char *` into `const char *` in
version 2.7. All of this is available in all supported OSes.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Tue, 23 Jun 2020 22:05:57 +0000 (00:05 +0200)]
m4: virt-sanlock: use pkg-config to find libsanlock_client
The last distribution supported by libvirt and lacking pkg-config file
for libsanlock_client was Ubuntu 16.04. It is no longer supported so
switch to pkg-config.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We can safely replace check for sanlock_inq_lockspace as that function
was introduced in sanlock-1.9. The oldest used version, sanlock-2.2,
is by Ubuntu 16.04.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pavel Hrdina [Mon, 4 May 2020 16:00:47 +0000 (18:00 +0200)]
build: use DLOPEN_LIBS directly
There is no need to have DRIVER_MODULES_LIBS as it's used only for
libvirt.so. The other places are using DLOPEN_LIBS directly and dlopen
is required if building with libvirtd.
- Add a check for asm/hwcap.h header presence,
- Add a check for getauxval() function that is used
on Linux, and for elf_aux_info() which is a FreeBSD
equivalent.
This is based on a patch submitted by Mikael Urankar in
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=247722.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When preparing for the removal of GNULIB commit 18dca21a32e9 removed the
unneeded O_DIRECTORY, but unfortunately started opening the directory for
writing which fails every time for a directory. There is also no need for that
as flock() works on O_RDONLY file descriptor as well, even for LOCK_EX.
projects / thirdparty / libvirt.git / log
