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libvirt/tests/vircgrouptest.c

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/*
* Copyright (C) 2013-2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include "testutils.h"
#ifdef __linux__
# define LIBVIRT_VIRCGROUPPRIV_H_ALLOW
# include "vircgrouppriv.h"
# include "virstring.h"
# include "virerror.h"
# include "virlog.h"
# include "virfile.h"
# include "virbuffer.h"
# include "testutilslxc.h"
# include "virhostcpu.h"
# define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("tests.cgrouptest");
static int validateCgroup(virCgroupPtr cgroup,
const char *expectPath,
const char **expectMountPoint,
const char **expectLinkPoint,
const char **expectPlacement,
const char *expectUnifiedMountPoint,
const char *expectUnifiedPlacement,
unsigned int expectUnifiedControllers)
{
size_t i;
if (STRNEQ(cgroup->path, expectPath)) {
fprintf(stderr, "Wrong path '%s', expected '%s'\n",
cgroup->path, expectPath);
return -1;
}
for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
if (STRNEQ_NULLABLE(expectMountPoint[i],
cgroup->legacy[i].mountPoint)) {
fprintf(stderr, "Wrong mount '%s', expected '%s' for '%s'\n",
cgroup->legacy[i].mountPoint,
expectMountPoint[i],
virCgroupControllerTypeToString(i));
return -1;
}
if (STRNEQ_NULLABLE(expectLinkPoint[i],
cgroup->legacy[i].linkPoint)) {
fprintf(stderr, "Wrong link '%s', expected '%s' for '%s'\n",
cgroup->legacy[i].linkPoint,
expectLinkPoint[i],
virCgroupControllerTypeToString(i));
return -1;
}
if (STRNEQ_NULLABLE(expectPlacement[i],
cgroup->legacy[i].placement)) {
fprintf(stderr, "Wrong placement '%s', expected '%s' for '%s'\n",
cgroup->legacy[i].placement,
expectPlacement[i],
virCgroupControllerTypeToString(i));
return -1;
}
}
if (STRNEQ_NULLABLE(expectUnifiedMountPoint,
cgroup->unified.mountPoint)) {
fprintf(stderr, "Wrong mount '%s', expected '%s' for 'unified'\n",
cgroup->unified.mountPoint,
expectUnifiedMountPoint);
return -1;
}
if (STRNEQ_NULLABLE(expectUnifiedPlacement,
cgroup->unified.placement)) {
fprintf(stderr, "Wrong placement '%s', expected '%s' for 'unified'\n",
cgroup->unified.placement,
expectUnifiedPlacement);
return -1;
}
if (expectUnifiedControllers != cgroup->unified.controllers) {
for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
int type = 1 << i;
if ((expectUnifiedControllers & type) != (cgroup->unified.controllers & type)) {
const char *typeStr = virCgroupControllerTypeToString(i);
if (expectUnifiedControllers & type) {
fprintf(stderr, "expected controller '%s' for 'unified', "
"but it's missing\n", typeStr);
} else {
fprintf(stderr, "existing controller '%s' for 'unified', "
"but it's not expected\n", typeStr);
}
}
}
return -1;
}
return 0;
}
const char *mountsSmall[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/not/really/sys/fs/cgroup/cpu,cpuacct",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/not/really/sys/fs/cgroup/cpu,cpuacct",
[VIR_CGROUP_CONTROLLER_CPUSET] = NULL,
[VIR_CGROUP_CONTROLLER_MEMORY] = "/not/really/sys/fs/cgroup/memory",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = NULL,
[VIR_CGROUP_CONTROLLER_BLKIO] = NULL,
[VIR_CGROUP_CONTROLLER_SYSTEMD] = NULL,
};
const char *mountsFull[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/not/really/sys/fs/cgroup/cpu,cpuacct",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/not/really/sys/fs/cgroup/cpu,cpuacct",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/not/really/sys/fs/cgroup/cpuset",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/not/really/sys/fs/cgroup/memory",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = "/not/really/sys/fs/cgroup/freezer",
[VIR_CGROUP_CONTROLLER_BLKIO] = "/not/really/sys/fs/cgroup/blkio",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = "/not/really/sys/fs/cgroup/systemd",
};
const char *mountsAllInOne[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/not/really/sys/fs/cgroup",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/not/really/sys/fs/cgroup",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/not/really/sys/fs/cgroup",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/not/really/sys/fs/cgroup",
[VIR_CGROUP_CONTROLLER_DEVICES] = "/not/really/sys/fs/cgroup",
[VIR_CGROUP_CONTROLLER_FREEZER] = NULL,
[VIR_CGROUP_CONTROLLER_BLKIO] = "/not/really/sys/fs/cgroup",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = NULL,
};
const char *links[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/not/really/sys/fs/cgroup/cpu",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/not/really/sys/fs/cgroup/cpuacct",
[VIR_CGROUP_CONTROLLER_CPUSET] = NULL,
[VIR_CGROUP_CONTROLLER_MEMORY] = NULL,
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = NULL,
[VIR_CGROUP_CONTROLLER_BLKIO] = NULL,
[VIR_CGROUP_CONTROLLER_SYSTEMD] = NULL,
};
const char *linksAllInOne[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = NULL,
[VIR_CGROUP_CONTROLLER_CPUACCT] = NULL,
[VIR_CGROUP_CONTROLLER_CPUSET] = NULL,
[VIR_CGROUP_CONTROLLER_MEMORY] = NULL,
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = NULL,
[VIR_CGROUP_CONTROLLER_BLKIO] = NULL,
[VIR_CGROUP_CONTROLLER_SYSTEMD] = NULL,
};
struct _detectMountsData {
const char *file;
bool fail;
};
static int
testCgroupDetectMounts(const void *args)
{
int result = -1;
const struct _detectMountsData *data = args;
char *parsed = NULL;
const char *actual;
virCgroupPtr group = NULL;
virBuffer buf = VIR_BUFFER_INITIALIZER;
size_t i;
setenv("VIR_CGROUP_MOCK_FILENAME", data->file, 1);
if (virAsprintf(&parsed, "%s/vircgroupdata/%s.parsed",
abs_srcdir, data->file) < 0) {
goto cleanup;
}
if (virCgroupNewSelf(&group) < 0) {
if (data->fail)
result = 0;
goto cleanup;
}
if (data->fail)
goto cleanup;
for (i = 0; i < VIR_CGROUP_CONTROLLER_LAST; i++) {
virBufferAsprintf(&buf, "%-12s %s\n",
virCgroupControllerTypeToString(i),
NULLSTR(group->legacy[i].mountPoint));
}
virBufferAsprintf(&buf, "%-12s %s\n",
"unified", NULLSTR(group->unified.mountPoint));
if (virBufferCheckError(&buf) < 0)
goto cleanup;
actual = virBufferCurrentContent(&buf);
if (virTestCompareToFile(actual, parsed) < 0)
goto cleanup;
result = 0;
cleanup:
unsetenv("VIR_CGROUP_MOCK_FILENAME");
VIR_FREE(parsed);
virCgroupFree(&group);
virBufferFreeAndReset(&buf);
return result;
}
static int testCgroupNewForSelf(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int ret = -1;
const char *placement[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/system",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/system",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = "/",
[VIR_CGROUP_CONTROLLER_BLKIO] = "/",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = "/user/berrange/123",
};
if (virCgroupNewSelf(&cgroup) < 0) {
fprintf(stderr, "Cannot create cgroup for self\n");
goto cleanup;
}
ret = validateCgroup(cgroup, "", mountsFull, links, placement, NULL, NULL, 0);
cleanup:
virCgroupFree(&cgroup);
return ret;
}
# define ENSURE_ERRNO(en) \
do { \
if (!virLastErrorIsSystemErrno(en)) { \
virErrorPtr err = virGetLastError(); \
fprintf(stderr, "Did not get " #en " error code: %d:%d\n", \
err ? err->code : 0, err ? err->int1 : 0); \
goto cleanup; \
} } while (0)
/* Asking for impossible combination since CPU is co-mounted */
static int testCgroupNewForPartition(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int ret = -1;
int rv;
const char *placementSmall[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_CPUSET] = NULL,
[VIR_CGROUP_CONTROLLER_MEMORY] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = NULL,
[VIR_CGROUP_CONTROLLER_BLKIO] = NULL,
[VIR_CGROUP_CONTROLLER_SYSTEMD] = NULL,
};
const char *placementFull[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_BLKIO] = "/virtualmachines.partition",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = "/user/berrange/123",
};
if ((rv = virCgroupNewPartition("/virtualmachines", false, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected found /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
/* Asking for impossible combination since CPU is co-mounted */
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_CPU),
&cgroup)) != -1) {
fprintf(stderr, "Should not have created /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(EINVAL);
/* Asking for impossible combination since devices is not mounted */
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_DEVICES),
&cgroup)) != -1) {
fprintf(stderr, "Should not have created /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENXIO);
/* Asking for small combination since devices is not mounted */
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_CPU) |
(1 << VIR_CGROUP_CONTROLLER_CPUACCT) |
(1 << VIR_CGROUP_CONTROLLER_MEMORY),
&cgroup)) != 0) {
fprintf(stderr, "Cannot create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ret = validateCgroup(cgroup, "/virtualmachines.partition", mountsSmall, links, placementSmall, NULL, NULL, 0);
virCgroupFree(&cgroup);
if ((rv = virCgroupNewPartition("/virtualmachines", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Cannot create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
ret = validateCgroup(cgroup, "/virtualmachines.partition", mountsFull, links, placementFull, NULL, NULL, 0);
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupNewForPartitionNested(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int ret = -1;
int rv;
const char *placementFull[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/deployment.partition/production.partition",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/deployment.partition/production.partition",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/deployment.partition/production.partition",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/deployment.partition/production.partition",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = "/deployment.partition/production.partition",
[VIR_CGROUP_CONTROLLER_BLKIO] = "/deployment.partition/production.partition",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = "/user/berrange/123",
};
if ((rv = virCgroupNewPartition("/deployment/production", false, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected found /deployment/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
/* Should not work, since we require /deployment to be pre-created */
if ((rv = virCgroupNewPartition("/deployment/production", true, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected created /deployment/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
if ((rv = virCgroupNewPartition("/deployment", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Failed to create /deployment cgroup: %d\n", -rv);
goto cleanup;
}
/* Should now work */
virCgroupFree(&cgroup);
if ((rv = virCgroupNewPartition("/deployment/production", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Failed to create /deployment/production cgroup: %d\n", -rv);
goto cleanup;
}
ret = validateCgroup(cgroup, "/deployment.partition/production.partition",
mountsFull, links, placementFull, NULL, NULL, 0);
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupNewForPartitionNestedDeep(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int ret = -1;
int rv;
const char *placementFull[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/user/berrange.user/production.partition",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/user/berrange.user/production.partition",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/user/berrange.user/production.partition",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/user/berrange.user/production.partition",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = "/user/berrange.user/production.partition",
[VIR_CGROUP_CONTROLLER_BLKIO] = "/user/berrange.user/production.partition",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = "/user/berrange/123",
};
if ((rv = virCgroupNewPartition("/user/berrange.user/production", false, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected found /user/berrange.user/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
/* Should not work, since we require /user/berrange.user to be pre-created */
if ((rv = virCgroupNewPartition("/user/berrange.user/production", true, -1, &cgroup)) != -1) {
fprintf(stderr, "Unexpected created /user/berrange.user/production cgroup: %d\n", -rv);
goto cleanup;
}
ENSURE_ERRNO(ENOENT);
if ((rv = virCgroupNewPartition("/user", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Failed to create /user/berrange.user cgroup: %d\n", -rv);
goto cleanup;
}
virCgroupFree(&cgroup);
if ((rv = virCgroupNewPartition("/user/berrange.user", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Failed to create /user/berrange.user cgroup: %d\n", -rv);
goto cleanup;
}
/* Should now work */
virCgroupFree(&cgroup);
if ((rv = virCgroupNewPartition("/user/berrange.user/production", true, -1, &cgroup)) != 0) {
fprintf(stderr, "Failed to create /user/berrange.user/production cgroup: %d\n", -rv);
goto cleanup;
}
ret = validateCgroup(cgroup, "/user/berrange.user/production.partition",
mountsFull, links, placementFull, NULL, NULL, 0);
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupNewForPartitionDomain(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr partitioncgroup = NULL;
virCgroupPtr domaincgroup = NULL;
int ret = -1;
int rv;
const char *placement[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/production.partition/foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/production.partition/foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/production.partition/foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/production.partition/foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = "/production.partition/foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_BLKIO] = "/production.partition/foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = "/user/berrange/123",
};
if ((rv = virCgroupNewPartition("/production", true, -1, &partitioncgroup)) != 0) {
fprintf(stderr, "Failed to create /production cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupNewDomainPartition(partitioncgroup, "lxc", "foo", true, &domaincgroup)) != 0) {
fprintf(stderr, "Cannot create LXC cgroup: %d\n", -rv);
goto cleanup;
}
ret = validateCgroup(domaincgroup, "/production.partition/foo.libvirt-lxc", mountsFull, links, placement, NULL, NULL, 0);
cleanup:
virCgroupFree(&partitioncgroup);
virCgroupFree(&domaincgroup);
return ret;
}
static int testCgroupNewForPartitionDomainEscaped(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr partitioncgroup1 = NULL;
virCgroupPtr partitioncgroup2 = NULL;
virCgroupPtr partitioncgroup3 = NULL;
virCgroupPtr domaincgroup = NULL;
int ret = -1;
int rv;
const char *placement[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/_cgroup.evil/net_cls.evil/__evil.evil/_cpu.foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/_cgroup.evil/net_cls.evil/__evil.evil/_cpu.foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/_cgroup.evil/net_cls.evil/__evil.evil/_cpu.foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/_cgroup.evil/net_cls.evil/__evil.evil/_cpu.foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_DEVICES] = NULL,
[VIR_CGROUP_CONTROLLER_FREEZER] = "/_cgroup.evil/net_cls.evil/__evil.evil/_cpu.foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_BLKIO] = "/_cgroup.evil/net_cls.evil/__evil.evil/_cpu.foo.libvirt-lxc",
[VIR_CGROUP_CONTROLLER_SYSTEMD] = "/user/berrange/123",
};
if ((rv = virCgroupNewPartition("/cgroup.evil", true, -1, &partitioncgroup1)) != 0) {
fprintf(stderr, "Failed to create /cgroup.evil cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupNewPartition("/cgroup.evil/net_cls.evil", true, -1, &partitioncgroup2)) != 0) {
fprintf(stderr, "Failed to create /cgroup.evil/cpu.evil cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupNewPartition("/cgroup.evil/net_cls.evil/_evil.evil", true, -1, &partitioncgroup3)) != 0) {
fprintf(stderr, "Failed to create /cgroup.evil cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupNewDomainPartition(partitioncgroup3, "lxc", "cpu.foo", true, &domaincgroup)) != 0) {
fprintf(stderr, "Cannot create LXC cgroup: %d\n", -rv);
goto cleanup;
}
/* NB we're not expecting 'net_cls.evil' to be escaped,
* since our fake /proc/cgroups pretends this controller
* isn't compiled into the kernel
*/
ret = validateCgroup(domaincgroup, "/_cgroup.evil/net_cls.evil/__evil.evil/_cpu.foo.libvirt-lxc", mountsFull, links, placement, NULL, NULL, 0);
cleanup:
virCgroupFree(&partitioncgroup3);
virCgroupFree(&partitioncgroup2);
virCgroupFree(&partitioncgroup1);
virCgroupFree(&domaincgroup);
return ret;
}
static int testCgroupNewForSelfAllInOne(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int ret = -1;
const char *placement[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPU] = "/",
[VIR_CGROUP_CONTROLLER_CPUACCT] = "/",
[VIR_CGROUP_CONTROLLER_CPUSET] = "/",
[VIR_CGROUP_CONTROLLER_MEMORY] = "/",
[VIR_CGROUP_CONTROLLER_DEVICES] = "/",
[VIR_CGROUP_CONTROLLER_FREEZER] = NULL,
[VIR_CGROUP_CONTROLLER_BLKIO] = "/",
};
if (virCgroupNewSelf(&cgroup) < 0) {
fprintf(stderr, "Cannot create cgroup for self\n");
goto cleanup;
}
ret = validateCgroup(cgroup, "", mountsAllInOne, linksAllInOne, placement, NULL, NULL, 0);
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupNewForSelfLogind(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
if (virCgroupNewSelf(&cgroup) >= 0) {
fprintf(stderr, "Expected to fail, only systemd cgroup available.\n");
virCgroupFree(&cgroup);
return -1;
}
return 0;
}
static int testCgroupNewForSelfUnified(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int ret = -1;
const char *empty[VIR_CGROUP_CONTROLLER_LAST] = { 0 };
unsigned int controllers =
(1 << VIR_CGROUP_CONTROLLER_CPU) |
(1 << VIR_CGROUP_CONTROLLER_CPUACCT) |
(1 << VIR_CGROUP_CONTROLLER_MEMORY) |
(1 << VIR_CGROUP_CONTROLLER_BLKIO);
if (virCgroupNewSelf(&cgroup) < 0) {
fprintf(stderr, "Cannot create cgroup for self\n");
goto cleanup;
}
ret = validateCgroup(cgroup, "", empty, empty, empty,
"/not/really/sys/fs/cgroup", "/", controllers);
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupNewForSelfHybrid(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int ret = -1;
const char *empty[VIR_CGROUP_CONTROLLER_LAST] = { 0 };
const char *mounts[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPUSET] = "/not/really/sys/fs/cgroup/cpuset",
[VIR_CGROUP_CONTROLLER_DEVICES] = "/not/really/sys/fs/cgroup/devices",
[VIR_CGROUP_CONTROLLER_FREEZER] = "/not/really/sys/fs/cgroup/freezer",
[VIR_CGROUP_CONTROLLER_NET_CLS] = "/not/really/sys/fs/cgroup/net_cls",
[VIR_CGROUP_CONTROLLER_PERF_EVENT] = "/not/really/sys/fs/cgroup/perf_event",
};
const char *placement[VIR_CGROUP_CONTROLLER_LAST] = {
[VIR_CGROUP_CONTROLLER_CPUSET] = "/",
[VIR_CGROUP_CONTROLLER_DEVICES] = "/",
[VIR_CGROUP_CONTROLLER_FREEZER] = "/",
[VIR_CGROUP_CONTROLLER_NET_CLS] = "/",
[VIR_CGROUP_CONTROLLER_PERF_EVENT] = "/",
};
unsigned int controllers =
(1 << VIR_CGROUP_CONTROLLER_CPU) |
(1 << VIR_CGROUP_CONTROLLER_CPUACCT) |
(1 << VIR_CGROUP_CONTROLLER_MEMORY) |
(1 << VIR_CGROUP_CONTROLLER_BLKIO);
if (virCgroupNewSelf(&cgroup) < 0) {
fprintf(stderr, "Cannot create cgroup for self\n");
goto cleanup;
}
ret = validateCgroup(cgroup, "", mounts, empty, placement,
"/not/really/sys/fs/cgroup/unified", "/", controllers);
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupAvailable(const void *args)
{
bool got = virCgroupAvailable();
bool want = args == (void*)0x1;
if (got != want) {
fprintf(stderr, "Expected cgroup %savailable, but state was wrong\n",
want ? "" : "not ");
return -1;
}
return 0;
}
static int testCgroupControllerAvailable(const void *args ATTRIBUTE_UNUSED)
{
int ret = 0;
# define CHECK_CONTROLLER(c, present) \
if ((present && !virCgroupControllerAvailable(c)) || \
(!present && virCgroupControllerAvailable(c))) { \
fprintf(stderr, present ? \
"Expected controller %s not available\n" : \
"Unexpected controller %s available\n", #c); \
ret = -1; \
}
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_CPU, true)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_CPUACCT, true)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_CPUSET, true)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_MEMORY, true)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_DEVICES, false)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_FREEZER, true)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_BLKIO, true)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_NET_CLS, false)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_PERF_EVENT, false)
CHECK_CONTROLLER(VIR_CGROUP_CONTROLLER_SYSTEMD, true)
# undef CHECK_CONTROLLER
return ret;
}
static int testCgroupGetPercpuStats(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
size_t i;
int rv, ret = -1;
virTypedParameterPtr params = NULL;
# define EXPECTED_NCPUS 160
unsigned long long expected[EXPECTED_NCPUS] = {
0, 0, 0, 0, 0, 0, 0, 0,
7059492996ULL, 0, 0, 0, 0, 0, 0, 0,
4180532496ULL, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
1957541268ULL, 0, 0, 0, 0, 0, 0, 0,
2065932204ULL, 0, 0, 0, 0, 0, 0, 0,
18228689414ULL, 0, 0, 0, 0, 0, 0, 0,
4245525148ULL, 0, 0, 0, 0, 0, 0, 0,
2911161568ULL, 0, 0, 0, 0, 0, 0, 0,
1407758136ULL, 0, 0, 0, 0, 0, 0, 0,
1836807700ULL, 0, 0, 0, 0, 0, 0, 0,
1065296618ULL, 0, 0, 0, 0, 0, 0, 0,
2046213266ULL, 0, 0, 0, 0, 0, 0, 0,
747889778ULL, 0, 0, 0, 0, 0, 0, 0,
709566900ULL, 0, 0, 0, 0, 0, 0, 0,
444777342ULL, 0, 0, 0, 0, 0, 0, 0,
5683512916ULL, 0, 0, 0, 0, 0, 0, 0,
635751356ULL, 0, 0, 0, 0, 0, 0, 0,
};
if (VIR_ALLOC_N(params, EXPECTED_NCPUS) < 0)
goto cleanup;
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_CPU) |
(1 << VIR_CGROUP_CONTROLLER_CPUACCT),
&cgroup)) < 0) {
fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if (virHostCPUGetCount() != EXPECTED_NCPUS) {
fprintf(stderr, "Unexpected: virHostCPUGetCount() yields: %d\n", virHostCPUGetCount());
goto cleanup;
}
if ((rv = virCgroupGetPercpuStats(cgroup,
params,
1, 0, EXPECTED_NCPUS, NULL)) < 0) {
fprintf(stderr, "Failed call to virCgroupGetPercpuStats for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < EXPECTED_NCPUS; i++) {
if (STRNEQ(params[i].field, VIR_DOMAIN_CPU_STATS_CPUTIME)) {
fprintf(stderr,
"Wrong parameter name value from virCgroupGetPercpuStats at %zu (is: %s)\n",
i, params[i].field);
goto cleanup;
}
if (params[i].type != VIR_TYPED_PARAM_ULLONG) {
fprintf(stderr,
"Wrong parameter value type from virCgroupGetPercpuStats at %zu (is: %d)\n",
i, params[i].type);
goto cleanup;
}
if (params[i].value.ul != expected[i]) {
fprintf(stderr,
"Wrong value from virCgroupGetPercpuStats at %zu (expected %llu)\n",
i, params[i].value.ul);
goto cleanup;
}
}
ret = 0;
cleanup:
virCgroupFree(&cgroup);
VIR_FREE(params);
return ret;
}
static int testCgroupGetMemoryUsage(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int rv, ret = -1;
unsigned long kb;
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_MEMORY),
&cgroup)) < 0) {
fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupGetMemoryUsage(cgroup, &kb)) < 0) {
fprintf(stderr, "Could not retrieve GetMemoryUsage for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if (kb != 1421212UL) {
fprintf(stderr,
"Wrong value from virCgroupGetMemoryUsage (expected %ld)\n",
1421212UL);
goto cleanup;
}
ret = 0;
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int
testCgroupGetMemoryStat(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
int rv;
int ret = -1;
size_t i;
const unsigned long long expected_values[] = {
1336619008ULL,
67100672ULL,
145887232ULL,
661872640ULL,
627400704UL,
3690496ULL
};
const char* names[] = {
"cache",
"active_anon",
"inactive_anon",
"active_file",
"inactive_file",
"unevictable"
};
unsigned long long values[ARRAY_CARDINALITY(expected_values)];
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_MEMORY),
&cgroup)) < 0) {
fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupGetMemoryStat(cgroup, &values[0],
&values[1], &values[2],
&values[3], &values[4],
&values[5])) < 0) {
fprintf(stderr, "Could not retrieve GetMemoryStat for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < ARRAY_CARDINALITY(expected_values); i++) {
/* NB: virCgroupGetMemoryStat returns a KiB scaled value */
if ((expected_values[i] >> 10) != values[i]) {
fprintf(stderr,
"Wrong value (%llu) for %s from virCgroupGetMemoryStat "
"(expected %llu)\n",
values[i], names[i], (expected_values[i] >> 10));
goto cleanup;
}
}
ret = 0;
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupGetBlkioIoServiced(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
size_t i;
int rv, ret = -1;
const long long expected_values[] = {
119084214273ULL,
822880960513ULL,
9665167,
73283807
};
const char* names[] = {
"bytes read",
"bytes written",
"requests read",
"requests written"
};
long long values[ARRAY_CARDINALITY(expected_values)];
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_BLKIO),
&cgroup)) < 0) {
fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupGetBlkioIoServiced(cgroup,
values, &values[1],
&values[2], &values[3])) < 0) {
fprintf(stderr, "Could not retrieve BlkioIoServiced for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < ARRAY_CARDINALITY(expected_values); i++) {
if (expected_values[i] != values[i]) {
fprintf(stderr,
"Wrong value for %s from virCgroupBlkioIoServiced (expected %lld)\n",
names[i], expected_values[i]);
goto cleanup;
}
}
ret = 0;
cleanup:
virCgroupFree(&cgroup);
return ret;
}
static int testCgroupGetBlkioIoDeviceServiced(const void *args ATTRIBUTE_UNUSED)
{
virCgroupPtr cgroup = NULL;
size_t i;
int rv, ret = -1;
const long long expected_values0[] = {
59542107136ULL,
411440480256ULL,
4832583,
36641903
};
const long long expected_values1[] = {
59542107137ULL,
411440480257ULL,
4832584,
36641904
};
const char* names[] = {
"bytes read",
"bytes written",
"requests read",
"requests written"
};
long long values[ARRAY_CARDINALITY(expected_values0)];
if ((rv = virCgroupNewPartition("/virtualmachines", true,
(1 << VIR_CGROUP_CONTROLLER_BLKIO),
&cgroup)) < 0) {
fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
if ((rv = virCgroupGetBlkioIoDeviceServiced(cgroup,
FAKEDEVDIR0,
values, &values[1],
&values[2], &values[3])) < 0) {
fprintf(stderr, "Could not retrieve BlkioIoDeviceServiced for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < ARRAY_CARDINALITY(expected_values0); i++) {
if (expected_values0[i] != values[i]) {
fprintf(stderr,
"Wrong value for %s from virCgroupGetBlkioIoDeviceServiced (expected %lld)\n",
names[i], expected_values0[i]);
goto cleanup;
}
}
if ((rv = virCgroupGetBlkioIoDeviceServiced(cgroup,
FAKEDEVDIR1,
values, &values[1],
&values[2], &values[3])) < 0) {
fprintf(stderr, "Could not retrieve BlkioIoDeviceServiced for /virtualmachines cgroup: %d\n", -rv);
goto cleanup;
}
for (i = 0; i < ARRAY_CARDINALITY(expected_values1); i++) {
if (expected_values1[i] != values[i]) {
fprintf(stderr,
"Wrong value for %s from virCgroupGetBlkioIoDeviceServiced (expected %lld)\n",
names[i], expected_values1[i]);
goto cleanup;
}
}
ret = 0;
cleanup:
virCgroupFree(&cgroup);
return ret;
}
# define FAKEROOTDIRTEMPLATE abs_builddir "/fakerootdir-XXXXXX"
static char *
initFakeFS(const char *mode,
const char *filename)
{
char *fakerootdir;
if (VIR_STRDUP_QUIET(fakerootdir, FAKEROOTDIRTEMPLATE) < 0) {
fprintf(stderr, "Out of memory\n");
abort();
}
if (!mkdtemp(fakerootdir)) {
fprintf(stderr, "Cannot create fakerootdir");
abort();
}
setenv("LIBVIRT_FAKE_ROOT_DIR", fakerootdir, 1);
if (mode)
setenv("VIR_CGROUP_MOCK_MODE", mode, 1);
if (filename)
setenv("VIR_CGROUP_MOCK_FILENAME", filename, 1);
return fakerootdir;
}
static void
cleanupFakeFS(char *fakerootdir)
{
if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
virFileDeleteTree(fakerootdir);
VIR_FREE(fakerootdir);
unsetenv("LIBVIRT_FAKE_ROOT_DIR");
unsetenv("VIR_CGROUP_MOCK_MODE");
unsetenv("VIR_CGROUP_MOCK_FILENAME");
}
static int
mymain(void)
{
int ret = 0;
char *fakerootdir;
# define DETECT_MOUNTS_FULL(file, fail) \
do { \
struct _detectMountsData data = { file, fail }; \
if (virTestRun("Detect cgroup mounts for " file, \
testCgroupDetectMounts, \
&data) < 0) \
ret = -1; \
} while (0)
# define DETECT_MOUNTS(file) DETECT_MOUNTS_FULL(file, false);
# define DETECT_MOUNTS_FAIL(file) DETECT_MOUNTS_FULL(file, true);
DETECT_MOUNTS("ovirt-node-6.6");
DETECT_MOUNTS("ovirt-node-7.1");
DETECT_MOUNTS("fedora-18");
DETECT_MOUNTS("fedora-21");
DETECT_MOUNTS("rhel-7.1");
DETECT_MOUNTS("cgroups1");
DETECT_MOUNTS("cgroups2");
DETECT_MOUNTS("cgroups3");
DETECT_MOUNTS("all-in-one");
DETECT_MOUNTS_FAIL("no-cgroups");
DETECT_MOUNTS("kubevirt");
fakerootdir = initFakeFS("unified", NULL);
DETECT_MOUNTS("unified");
cleanupFakeFS(fakerootdir);
fakerootdir = initFakeFS("hybrid", NULL);
DETECT_MOUNTS("hybrid");
cleanupFakeFS(fakerootdir);
fakerootdir = initFakeFS(NULL, "systemd");
if (virTestRun("New cgroup for self", testCgroupNewForSelf, NULL) < 0)
ret = -1;
if (virTestRun("New cgroup for partition", testCgroupNewForPartition, NULL) < 0)
ret = -1;
if (virTestRun("New cgroup for partition nested", testCgroupNewForPartitionNested, NULL) < 0)
ret = -1;
if (virTestRun("New cgroup for partition nested deeply", testCgroupNewForPartitionNestedDeep, NULL) < 0)
ret = -1;
if (virTestRun("New cgroup for domain partition", testCgroupNewForPartitionDomain, NULL) < 0)
ret = -1;
if (virTestRun("New cgroup for domain partition escaped", testCgroupNewForPartitionDomainEscaped, NULL) < 0)
ret = -1;
if (virTestRun("Cgroup available", testCgroupAvailable, (void*)0x1) < 0)
ret = -1;
if (virTestRun("Cgroup controller available", testCgroupControllerAvailable, NULL) < 0)
ret = -1;
if (virTestRun("virCgroupGetBlkioIoServiced works", testCgroupGetBlkioIoServiced, NULL) < 0)
ret = -1;
if (virTestRun("virCgroupGetBlkioIoDeviceServiced works", testCgroupGetBlkioIoDeviceServiced, NULL) < 0)
ret = -1;
if (virTestRun("virCgroupGetMemoryUsage works", testCgroupGetMemoryUsage, NULL) < 0)
ret = -1;
if (virTestRun("virCgroupGetMemoryStat works", testCgroupGetMemoryStat, NULL) < 0)
ret = -1;
if (virTestRun("virCgroupGetPercpuStats works", testCgroupGetPercpuStats, NULL) < 0)
ret = -1;
cleanupFakeFS(fakerootdir);
fakerootdir = initFakeFS(NULL, "all-in-one");
if (virTestRun("New cgroup for self (allinone)", testCgroupNewForSelfAllInOne, NULL) < 0)
ret = -1;
if (virTestRun("Cgroup available", testCgroupAvailable, (void*)0x1) < 0)
ret = -1;
cleanupFakeFS(fakerootdir);
fakerootdir = initFakeFS(NULL, "logind");
if (virTestRun("New cgroup for self (logind)", testCgroupNewForSelfLogind, NULL) < 0)
ret = -1;
if (virTestRun("Cgroup available", testCgroupAvailable, (void*)0x0) < 0)
ret = -1;
cleanupFakeFS(fakerootdir);
/* cgroup unified */
fakerootdir = initFakeFS("unified", "unified");
if (virTestRun("New cgroup for self (unified)", testCgroupNewForSelfUnified, NULL) < 0)
ret = -1;
if (virTestRun("Cgroup available (unified)", testCgroupAvailable, (void*)0x1) < 0)
ret = -1;
cleanupFakeFS(fakerootdir);
/* cgroup hybrid */
fakerootdir = initFakeFS("hybrid", "hybrid");
if (virTestRun("New cgroup for self (hybrid)", testCgroupNewForSelfHybrid, NULL) < 0)
ret = -1;
if (virTestRun("Cgroup available (hybrid)", testCgroupAvailable, (void*)0x1) < 0)
ret = -1;
cleanupFakeFS(fakerootdir);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
VIR_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/vircgroupmock.so")
#else
int
main(void)
{
return EXIT_AM_SKIP;
}
#endif
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