/* * 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 * . */ #include #include "testutils.h" #ifdef __linux__ # define LIBVIRT_VIRCGROUPPRIV_H_ALLOW # include "vircgrouppriv.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(virCgroup *cgroup, const char **expectMountPoint, const char **expectLinkPoint, const char **expectPlacement, const char *expectUnifiedMountPoint, const char *expectUnifiedPlacement, unsigned int expectUnifiedControllers) { size_t i; 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; g_autofree char *parsed = NULL; const char *actual; g_autoptr(virCgroup) group = NULL; g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER; size_t i; g_setenv("VIR_CGROUP_MOCK_FILENAME", data->file, TRUE); parsed = g_strdup_printf("%s/vircgroupdata/%s.parsed", abs_srcdir, data->file); 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)); actual = virBufferCurrentContent(&buf); if (virTestCompareToFile(actual, parsed) < 0) goto cleanup; result = 0; cleanup: g_unsetenv("VIR_CGROUP_MOCK_FILENAME"); return result; } static int testCgroupNewForSelf(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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"); return -1; } return validateCgroup(cgroup, mountsFull, links, placement, NULL, NULL, 0); } # 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); \ return -1; \ } } while (0) /* Asking for impossible combination since CPU is co-mounted */ static int testCgroupNewForPartition(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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); return -1; } 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); return -1; } 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); return -1; } 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); return -1; } rv = validateCgroup(cgroup, 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); return -1; } return validateCgroup(cgroup, mountsFull, links, placementFull, NULL, NULL, 0); } static int testCgroupNewForPartitionNested(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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); return -1; } 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); return -1; } ENSURE_ERRNO(ENOENT); if ((rv = virCgroupNewPartition("/deployment", true, -1, &cgroup)) != 0) { fprintf(stderr, "Failed to create /deployment cgroup: %d\n", -rv); return -1; } /* 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); return -1; } return validateCgroup(cgroup, mountsFull, links, placementFull, NULL, NULL, 0); } static int testCgroupNewForPartitionNestedDeep(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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); return -1; } 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); return -1; } ENSURE_ERRNO(ENOENT); if ((rv = virCgroupNewPartition("/user", true, -1, &cgroup)) != 0) { fprintf(stderr, "Failed to create /user/berrange.user cgroup: %d\n", -rv); return -1; } virCgroupFree(cgroup); if ((rv = virCgroupNewPartition("/user/berrange.user", true, -1, &cgroup)) != 0) { fprintf(stderr, "Failed to create /user/berrange.user cgroup: %d\n", -rv); return -1; } /* 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); return -1; } return validateCgroup(cgroup, mountsFull, links, placementFull, NULL, NULL, 0); } static int testCgroupNewForPartitionDomain(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) partitioncgroup = NULL; g_autoptr(virCgroup) domaincgroup = NULL; 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); return -1; } if ((rv = virCgroupNewDomainPartition(partitioncgroup, "lxc", "foo", &domaincgroup)) != 0) { fprintf(stderr, "Cannot create LXC cgroup: %d\n", -rv); return -1; } return validateCgroup(domaincgroup, mountsFull, links, placement, NULL, NULL, 0); } static int testCgroupNewForPartitionDomainEscaped(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) partitioncgroup1 = NULL; g_autoptr(virCgroup) partitioncgroup2 = NULL; g_autoptr(virCgroup) partitioncgroup3 = NULL; g_autoptr(virCgroup) domaincgroup = NULL; 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); return -1; } 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); return -1; } 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); return -1; } if ((rv = virCgroupNewDomainPartition(partitioncgroup3, "lxc", "cpu.foo", &domaincgroup)) != 0) { fprintf(stderr, "Cannot create LXC cgroup: %d\n", -rv); return -1; } /* 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 */ return validateCgroup(domaincgroup, mountsFull, links, placement, NULL, NULL, 0); } static int testCgroupNewForSelfAllInOne(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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"); return -1; } return validateCgroup(cgroup, mountsAllInOne, linksAllInOne, placement, NULL, NULL, 0); } static int testCgroupNewForSelfLogind(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; if (virCgroupNewSelf(&cgroup) >= 0) { fprintf(stderr, "Expected to fail, only systemd cgroup available.\n"); return -1; } return 0; } static int testCgroupNewForSelfUnified(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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_DEVICES) | (1 << VIR_CGROUP_CONTROLLER_BLKIO); if (virCgroupNewSelf(&cgroup) < 0) { fprintf(stderr, "Cannot create cgroup for self\n"); return -1; } return validateCgroup(cgroup, empty, empty, empty, "/not/really/sys/fs/cgroup", "/", controllers); } static int testCgroupNewForSelfHybrid(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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_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_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_DEVICES) | (1 << VIR_CGROUP_CONTROLLER_BLKIO); if (virCgroupNewSelf(&cgroup) < 0) { fprintf(stderr, "Cannot create cgroup for self\n"); return -1; } return validateCgroup(cgroup, mounts, empty, placement, "/not/really/sys/fs/cgroup/unified", "/", controllers); } static int testCgroupNewForSelfSystemdLegacy(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; const char *empty[VIR_CGROUP_CONTROLLER_LAST] = { 0 }; const char *mounts[VIR_CGROUP_CONTROLLER_LAST] = { [VIR_CGROUP_CONTROLLER_BLKIO] = "/not/really/sys/fs/cgroup/blkio", [VIR_CGROUP_CONTROLLER_CPU] = "/not/really/sys/fs/cgroup/cpu", [VIR_CGROUP_CONTROLLER_CPUACCT] = "/not/really/sys/fs/cgroup/cpuacct", [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_MEMORY] = "/not/really/sys/fs/cgroup/memory", [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_BLKIO] = "", [VIR_CGROUP_CONTROLLER_CPU] = "", [VIR_CGROUP_CONTROLLER_CPUACCT] = "", [VIR_CGROUP_CONTROLLER_CPUSET] = "", [VIR_CGROUP_CONTROLLER_DEVICES] = "", [VIR_CGROUP_CONTROLLER_FREEZER] = "", [VIR_CGROUP_CONTROLLER_MEMORY] = "", [VIR_CGROUP_CONTROLLER_NET_CLS] = "", [VIR_CGROUP_CONTROLLER_PERF_EVENT] = "", }; if (virCgroupNewSelf(&cgroup) < 0) { fprintf(stderr, "Cannot create cgroup for self\n"); return -1; } return validateCgroup(cgroup, mounts, empty, placement, NULL, NULL, 0); } static int testCgroupNewForSelfSystemdUnified(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; 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_DEVICES) | (1 << VIR_CGROUP_CONTROLLER_BLKIO); if (virCgroupNewSelf(&cgroup) < 0) { fprintf(stderr, "Cannot create cgroup for self\n"); return -1; } return validateCgroup(cgroup, empty, empty, empty, "/not/really/sys/fs/cgroup", "", controllers); } 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 G_GNUC_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 G_GNUC_UNUSED) { g_autoptr(virCgroup) 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, }; params = g_new0(virTypedParameter, EXPECTED_NCPUS); 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: VIR_FREE(params); return ret; } static int testCgroupGetMemoryUsage(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; int rv; 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); return -1; } if ((rv = virCgroupGetMemoryUsage(cgroup, &kb)) < 0) { fprintf(stderr, "Could not retrieve GetMemoryUsage for /virtualmachines cgroup: %d\n", -rv); return -1; } if (kb != 1421212UL) { fprintf(stderr, "Wrong value from virCgroupGetMemoryUsage (expected %ld)\n", 1421212UL); return -1; } return 0; } static int testCgroupGetMemoryStat(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; int rv; 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[G_N_ELEMENTS(expected_values)]; if ((rv = virCgroupNewPartition("/virtualmachines", true, (1 << VIR_CGROUP_CONTROLLER_MEMORY), &cgroup)) < 0) { fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv); return -1; } 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); return -1; } for (i = 0; i < G_N_ELEMENTS(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)); return -1; } } return 0; } static int testCgroupGetBlkioIoServiced(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; size_t i; int rv; const long long expected_values[] = { 119084214273ULL, 822880960513ULL, 9665167, 73283807 }; const char* names[] = { "bytes read", "bytes written", "requests read", "requests written" }; long long values[G_N_ELEMENTS(expected_values)]; if ((rv = virCgroupNewPartition("/virtualmachines", true, (1 << VIR_CGROUP_CONTROLLER_BLKIO), &cgroup)) < 0) { fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv); return -1; } if ((rv = virCgroupGetBlkioIoServiced(cgroup, values, &values[1], &values[2], &values[3])) < 0) { fprintf(stderr, "Could not retrieve BlkioIoServiced for /virtualmachines cgroup: %d\n", -rv); return -1; } for (i = 0; i < G_N_ELEMENTS(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]); return -1; } } return 0; } static int testCgroupGetBlkioIoDeviceServiced(const void *args G_GNUC_UNUSED) { g_autoptr(virCgroup) cgroup = NULL; size_t i; int rv; 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[G_N_ELEMENTS(expected_values0)]; if ((rv = virCgroupNewPartition("/virtualmachines", true, (1 << VIR_CGROUP_CONTROLLER_BLKIO), &cgroup)) < 0) { fprintf(stderr, "Could not create /virtualmachines cgroup: %d\n", -rv); return -1; } 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); return -1; } for (i = 0; i < G_N_ELEMENTS(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]); return -1; } } 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); return -1; } for (i = 0; i < G_N_ELEMENTS(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]); return -1; } } return 0; } static char * initFakeFS(const char *mode, const char *filename) { char *fakerootdir; if (!(fakerootdir = virTestFakeRootDirInit())) abort(); if (mode) g_setenv("VIR_CGROUP_MOCK_MODE", mode, TRUE); if (filename) g_setenv("VIR_CGROUP_MOCK_FILENAME", filename, TRUE); return fakerootdir; } static void cleanupFakeFS(char *fakerootdir) { g_unsetenv("VIR_CGROUP_MOCK_MODE"); g_unsetenv("VIR_CGROUP_MOCK_FILENAME"); virTestFakeRootDirCleanup(fakerootdir); VIR_FREE(fakerootdir); } 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"); fakerootdir = initFakeFS(NULL, "all-in-one"); DETECT_MOUNTS("all-in-one"); cleanupFakeFS(fakerootdir); 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); fakerootdir = initFakeFS("legacy", "systemd-legacy"); if (virTestRun("New cgroup for self (systemd-legacy)", testCgroupNewForSelfSystemdLegacy, NULL) < 0) { ret = -1; } cleanupFakeFS(fakerootdir); fakerootdir = initFakeFS("unified", "systemd-unified"); if (virTestRun("New cgroup for self (systemd-unified)", testCgroupNewForSelfSystemdUnified, NULL) < 0) { ret = -1; } cleanupFakeFS(fakerootdir); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; } VIR_TEST_MAIN_PRELOAD(mymain, VIR_TEST_MOCK("vircgroup")) #else int main(void) { return EXIT_AM_SKIP; } #endif