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This flag is only used for tests. Let's instead overload bind syscall
in mocks where it is not done yet.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Range check in virPortAllocatorSetUsed is not useful anymore
when we manage ports for entire unsigned short range values.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Host tcp4/tcp6 ports is a global resource thus we need to make
port accounting also global or we have issues described in [1] when
port allocator ranges of different instances are overlapped (which
is by default for qemu for example).
Let's have only one global port allocator object that take care
of the entire ports range (0 - 65535) and introduce port range object
for clients to specify desired auto allocation band.
[1] https://www.redhat.com/archives/libvir-list/2017-December/msg00600.html
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
After the rework of mocking of our tests there's the
virportallocator test failing to link on mingw. Well, it's the
mocking library actually:
../gnulib/lib/.libs/libgnu.a(bind.o): In function `rpl_bind':
/home/jenkins/libvirt-mingw/build32/gnulib/lib/../../../gnulib/lib/bind.c:33: multiple definition of `rpl_bind'
.libs/virportallocatormock_la-virportallocatormock.o:/home/jenkins/libvirt-mingw/build32/tests/../../tests/virportallocatormock.c:79: first defined here
I've no idea why this matters to mingw and does not to others.
Nevertheless, if we make the test linux only the problem goes
away.
Apparently, our test for RTLD_NEXT is not sufficient because
mingw32 defines it. Lets put aside for a while fact that it has
the same value as RTLD_DEFAULT which by description has different
meaning, shall we?
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The virportallocatortest.c file is compiled both as a test case
and as a mock library; in the latter case, it can't use
VIR_FORCE_CLOSE() because mock libraries are not linked against
libvirt.
Replace VIR_FORCE_CLOSE() with plain close() to solve the issue.
Mock libraries are not built with testutils.c, but there's one which
uses VIR_TEST_DEBUG. But because that debug should be an error, if we
change it, then it will not only be more semantically correct, but mingw
compiler will be happier as well.
It also follows suit with all other mock libraries.
For few other things, used in this file, need libvirt.la to be added
into LIBADD for mingw as well.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
C guarantees that static variables are zero-initialized. Some older
compilers (and also gcc -fno-zero-initialized-in-bss) create larger
binaries if you explicitly zero-initialize a static variable.
* tests/eventtest.c: Fix initialization.
* tests/testutils.c: Likewise.
* tests/virhostdevtest.c: Likewise.
* tests/virportallocatortest.c: Likewise.
* tests/virscsitest.c: Likewise.
Signed-off-by: Eric Blake <eblake@redhat.com>
Test suites using the port allocator don't want to have different
behaviour depending on whether a port is in use on the host. Add
a VIR_PORT_ALLOCATOR_SKIP_BIND_CHECK which test suites can use
to skip the bind() test. The port allocator will thus only track
ports in use by the test suite process itself. This is fine when
using the port allocator to generate guest configs which won't
actually be launched
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Any source file which calls the logging APIs now needs
to have a VIR_LOG_INIT("source.name") declaration at
the start of the file. This provides a static variable
of the virLogSource type.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Commit a1cbe4b5 added a check for spaces around assignments and this
patch extends it to checks for spaces around '=='. One exception is
virAssertCmpInt where comma after '==' is acceptable (since it is a
macro and '==' is its argument).
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Cygwin supports <dlfcn.h> and even has limited LD_PRELOAD
capabilities; but because it does not use ELF binaries it
cannot support RTLD_NEXT lookups.
CC libvirportallocatormock_la-virportallocatortest.lo
virportallocatortest.c: In function 'init_syms':
virportallocatortest.c:47:24: error: 'RTLD_NEXT' undeclared (first use in this function)
realsocket = dlsym(RTLD_NEXT, "socket");
* tests/virportallocatortest.c: Also require RTLD_NEXT.
Signed-off-by: Eric Blake <eblake@redhat.com>
Running ./autobuild.sh complained during the mingw cross-compile:
CC libvirportallocatormock_la-virportallocatortest.lo
../../tests/virportallocatortest.c:32:20: fatal error: dlfcn.h: No such file or directory
# include <dlfcn.h>
^
compilation terminated. With that fixed, the next failure was:
CCLD qemuxml2argvmock.la
libtool: link: libtool library `qemuxml2argvmock.la' must begin with `lib'
libtool: link: Try `libtool --help --mode=link' for more information.
While we don't need to limit all LD_PRELOAD tests to just Linux, we
do need to limit them to platforms that actually support loading;
we also need to avoid building qemu tests when qemu is not enabled.
* tests/virportallocatortest.c: Make conditional on <dlfcn.h>.
* tests/Makefile.am (test_libraries): Only build qemu mock library
when building qemu tests.
Signed-off-by: Eric Blake <eblake@redhat.com>
Also try to bind on IPv6 to check if the port is occupied.
Change the mocked bind in the test to return EADDRINUSE
for some ports only for the IPv4/IPv6 socket if we're testing
on a host with IPv6 compiled in.
Also mock socket() to make it fail with EAFNOTSUPPORTED
if LIBVIRT_TEST_IPV4ONLY is set in the environment, to
simulate a host without IPv6 support in the kernel. The
tests are repeated again with this variable set.
https://bugzilla.redhat.com/show_bug.cgi?id=1025407
Report the error in virPortAllocatorAcquire instead
of doing it in every caller.
The error contains the port range name instead of the intended
use for the port, e.g.:
Unable to find an unused port in range 'display' (65534-65535)
instead of:
Unable to find an unused port for SPICE
This also adds error reporting when the QEMU driver could not
find an unused port for VNC, VNC WebSockets or NBD migration.
The test case average timing code has not been used by any test
case ever. Delete it to remove complexity.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The virportallocatortest did not check if the object
allocation failed in all cases. This lead to a crash
on OOM in the testsuite
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
These all existed before virfile.c was created, and for some reason
weren't moved.
This is mostly straightfoward, although the syntax rule prohibiting
write() had to be changed to have an exception for virfile.c instead
of virutil.c.
This movement pointed out that there is a function called
virBuildPath(), and another almost identical function called
virFileBuildPath(). They really should be a single function, which
I'll take care of as soon as I figure out what the arglist should look
like.
The source code base needs to be adapted as well. Some files
include virutil.h just for the string related functions (here,
the include is substituted to match the new file), some include
virutil.h without any need (here, the include is removed), and
some require both.
To avoid
virportallocatortest.c: In function 'bind':
virportallocatortest.c:34:33: warning: cast increases required alignment of target type [-Wcast-align]
struct sockaddr_in *saddr = (struct sockaddr_in *)addr;
^
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
A build on FreeBSD failed with:
util/virportallocator.c:108: error: storage size of 'addr' isn't known
util/virportallocator.c:123: error: 'INADDR_ANY' undeclared (first use in this function)
It turns out that while POSIX allows sockaddr_in to leak in through
<arpa/inet.h> (the way Linux does it), it is not mandatory, and
conforming applications are required to get it through <netinet/in.h>.
* src/util/virportallocator.c: Include header for struct
sockaddr_in.
* tests/virportallocatortest.c: Likewise.
The QEMU driver default max port is 65535, but it then increments
this by 1 to 65536. This maps to 0 in an unsigned short :-( This
was apparently done so that for() loops could use "< max" instead
of "<= max". Remove this insanity and just make the loop do the
right thing.
