static int
lxcSetCpusetTune(virDomainDefPtr def, virConfPtr properties)
{
VIR_AUTOFREE(char *) value = NULL;
virBitmapPtr nodeset = NULL;
if (virConfGetValueString(properties, "lxc.cgroup.cpuset.cpus",
&value) > 0) {
if (virBitmapParse(value, &def->cpumask, VIR_DOMAIN_CPUMASK_LEN) < 0)
return -1;
def->placement_mode = VIR_DOMAIN_CPU_PLACEMENT_MODE_STATIC;
VIR_FREE(value);
}
if (virConfGetValueString(properties, "lxc.cgroup.cpuset.mems",
&value) > 0) {
if (virBitmapParse(value, &nodeset, VIR_DOMAIN_CPUMASK_LEN) < 0)
return -1;
if (virDomainNumatuneSet(def->numa,
def->placement_mode ==
VIR_DOMAIN_CPU_PLACEMENT_MODE_STATIC,
VIR_DOMAIN_NUMATUNE_PLACEMENT_STATIC,
VIR_DOMAIN_NUMATUNE_MEM_STRICT,
nodeset) < 0) {
virBitmapFree(nodeset);
return -1;
}
virBitmapFree(nodeset);
}
return 0;
}
static int
lxcSetMemTune(virDomainDefPtr def, virConfPtr properties)
{
VIR_AUTOFREE(char *) value = NULL;
unsigned long long size = 0;
if (virConfGetValueString(properties,
"lxc.cgroup.memory.limit_in_bytes",
&value) > 0) {
if (lxcConvertSize(value, &size) < 0)
return -1;
size = size / 1024;
virDomainDefSetMemoryTotal(def, size);
def->mem.hard_limit = virMemoryLimitTruncate(size);
VIR_FREE(value);
}
if (virConfGetValueString(properties,
"lxc.cgroup.memory.soft_limit_in_bytes",
&value) > 0) {
if (lxcConvertSize(value, &size) < 0)
return -1;
def->mem.soft_limit = virMemoryLimitTruncate(size / 1024);
VIR_FREE(value);
}
if (virConfGetValueString(properties,
"lxc.cgroup.memory.memsw.limit_in_bytes",
&value) > 0) {
if (lxcConvertSize(value, &size) < 0)
return -1;
def->mem.swap_hard_limit = virMemoryLimitTruncate(size / 1024);
}
return 0;
}
static int
lxcSetCpuTune(virDomainDefPtr def, virConfPtr properties)
{
VIR_AUTOFREE(char *) value = NULL;
if (virConfGetValueString(properties, "lxc.cgroup.cpu.shares",
&value) > 0) {
if (virStrToLong_ull(value, NULL, 10, &def->cputune.shares) < 0)
goto error;
def->cputune.sharesSpecified = true;
VIR_FREE(value);
}
if (virConfGetValueString(properties, "lxc.cgroup.cpu.cfs_quota_us",
&value) > 0) {
if (virStrToLong_ll(value, NULL, 10, &def->cputune.quota) < 0)
goto error;
VIR_FREE(value);
}
if (virConfGetValueString(properties, "lxc.cgroup.cpu.cfs_period_us",
&value) > 0) {
if (virStrToLong_ull(value, NULL, 10, &def->cputune.period) < 0)
goto error;
}
return 0;
error:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to parse integer: '%s'"), value);
return -1;
}
static int
virLockDaemonConfigLoadOptions(virLockDaemonConfigPtr data,
virConfPtr conf)
{
if (virConfGetValueUInt(conf, "log_level", &data->log_level) < 0)
return -1;
if (virConfGetValueString(conf, "log_filters", &data->log_filters) < 0)
return -1;
if (virConfGetValueString(conf, "log_outputs", &data->log_outputs) < 0)
return -1;
if (virConfGetValueUInt(conf, "max_clients", &data->max_clients) < 0)
return -1;
return 0;
}
int
virLXCLoadDriverConfig(virLXCDriverConfigPtr cfg,
const char *filename)
{
virConfPtr conf;
int ret = -1;
/* Avoid error from non-existent or unreadable file. */
if (access(filename, R_OK) == -1)
return 0;
conf = virConfReadFile(filename, 0);
if (!conf)
return -1;
if (virConfGetValueBool(conf, "log_with_libvirtd", &cfg->log_libvirtd) < 0)
goto cleanup;
if (virConfGetValueString(conf, "security_driver", &cfg->securityDriverName) < 0)
goto cleanup;
if (virConfGetValueBool(conf, "security_default_confined", &cfg->securityDefaultConfined) < 0)
goto cleanup;
if (virConfGetValueBool(conf, "security_require_confined", &cfg->securityRequireConfined) < 0)
goto cleanup;
ret = 0;
cleanup:
virConfFree(conf);
return ret;
}
static int
virAdmGetDefaultURI(virConfPtr conf, char **uristr)
{
const char *defname = virGetEnvAllowSUID("LIBVIRT_ADMIN_DEFAULT_URI");
if (defname && *defname) {
if (VIR_STRDUP(*uristr, defname) < 0)
return -1;
VIR_DEBUG("Using LIBVIRT_ADMIN_DEFAULT_URI '%s'", *uristr);
} else {
if (virConfGetValueString(conf, "admin_uri_default", uristr) < 0)
return -1;
if (*uristr) {
VIR_DEBUG("Using config file uri '%s'", *uristr);
} else {
/* Since we can't probe connecting via any hypervisor driver as libvirt
* does, if no explicit URI was given and neither the environment
* variable, nor the configuration parameter had previously been set,
* we set the default admin server URI to 'libvirtd://system'.
*/
if (VIR_STRDUP(*uristr, "libvirtd:///system") < 0)
return -1;
}
}
return 0;
}
static int
lxcCreateConsoles(virDomainDefPtr def, virConfPtr properties)
{
VIR_AUTOFREE(char *) value = NULL;
int nbttys = 0;
virDomainChrDefPtr console;
size_t i;
if (virConfGetValueString(properties, "lxc.tty.max", &value) <= 0) {
virResetLastError();
/* Check for pre LXC 3.0 legacy key */
if (virConfGetValueString(properties, "lxc.tty", &value) <= 0)
return 0;
}
if (virStrToLong_i(value, NULL, 10, &nbttys) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, _("failed to parse int: '%s'"),
value);
return -1;
}
if (VIR_ALLOC_N(def->consoles, nbttys) < 0)
return -1;
def->nconsoles = nbttys;
for (i = 0; i < nbttys; i++) {
if (!(console = virDomainChrDefNew(NULL)))
goto error;
console->deviceType = VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE;
console->targetType = VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_LXC;
console->target.port = i;
console->source->type = VIR_DOMAIN_CHR_TYPE_PTY;
def->consoles[i] = console;
}
return 0;
error:
virDomainChrDefFree(console);
return -1;
}
static int virLockManagerLockDaemonLoadConfig(const char *configFile)
{
virConfPtr conf;
int ret = -1;
if (access(configFile, R_OK) == -1) {
if (errno != ENOENT) {
virReportSystemError(errno,
_("Unable to access config file %s"),
configFile);
return -1;
}
return 0;
}
if (!(conf = virConfReadFile(configFile, 0)))
return -1;
if (virConfGetValueBool(conf, "auto_disk_leases", &driver->autoDiskLease) < 0)
goto cleanup;
if (virConfGetValueString(conf, "file_lockspace_dir", &driver->fileLockSpaceDir) < 0)
goto cleanup;
if (virConfGetValueString(conf, "lvm_lockspace_dir", &driver->lvmLockSpaceDir) < 0)
goto cleanup;
if (virConfGetValueString(conf, "scsi_lockspace_dir", &driver->scsiLockSpaceDir) < 0)
goto cleanup;
driver->requireLeaseForDisks = !driver->autoDiskLease;
if (virConfGetValueBool(conf, "require_lease_for_disks", &driver->requireLeaseForDisks) < 0)
goto cleanup;
ret = 0;
cleanup:
virConfFree(conf);
return ret;
}
static int
lxcSetRootfs(virDomainDefPtr def,
virConfPtr properties)
{
int type = VIR_DOMAIN_FS_TYPE_MOUNT;
VIR_AUTOFREE(char *) value = NULL;
if (virConfGetValueString(properties, "lxc.rootfs.path", &value) <= 0) {
virResetLastError();
/* Check for pre LXC 3.0 legacy key */
if (virConfGetValueString(properties, "lxc.rootfs", &value) <= 0)
return -1;
}
if (STRPREFIX(value, "/dev/"))
type = VIR_DOMAIN_FS_TYPE_BLOCK;
if (lxcAddFSDef(def, type, value, "/", false, 0) < 0)
return -1;
return 0;
}
static int
lxcSetBlkioTune(virDomainDefPtr def, virConfPtr properties)
{
VIR_AUTOFREE(char *) value = NULL;
if (virConfGetValueString(properties, "lxc.cgroup.blkio.weight",
&value) > 0) {
if (virStrToLong_ui(value, NULL, 10, &def->blkio.weight) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to parse integer: '%s'"), value);
return -1;
}
}
if (virConfWalk(properties, lxcBlkioDeviceWalkCallback, def) < 0)
return -1;
return 0;
}
static void
lxcSetCapDrop(virDomainDefPtr def, virConfPtr properties)
{
VIR_AUTOFREE(char *) value = NULL;
char **toDrop = NULL;
const char *capString;
size_t i;
if (virConfGetValueString(properties, "lxc.cap.drop", &value) > 0)
toDrop = virStringSplit(value, " ", 0);
for (i = 0; i < VIR_DOMAIN_CAPS_FEATURE_LAST; i++) {
capString = virDomainCapsFeatureTypeToString(i);
if (toDrop != NULL &&
virStringListHasString((const char **)toDrop, capString))
def->caps_features[i] = VIR_TRISTATE_SWITCH_OFF;
}
def->features[VIR_DOMAIN_FEATURE_CAPABILITIES] = VIR_DOMAIN_CAPABILITIES_POLICY_ALLOW;
virStringListFree(toDrop);
}
virDomainDefPtr
lxcParseConfigString(const char *config,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt)
{
virDomainDefPtr vmdef = NULL;
virConfPtr properties = NULL;
VIR_AUTOFREE(char *) value = NULL;
if (!(properties = virConfReadString(config, VIR_CONF_FLAG_LXC_FORMAT)))
return NULL;
if (!(vmdef = virDomainDefNew()))
goto error;
if (virUUIDGenerate(vmdef->uuid) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("failed to generate uuid"));
goto error;
}
vmdef->id = -1;
virDomainDefSetMemoryTotal(vmdef, 64 * 1024);
vmdef->onReboot = VIR_DOMAIN_LIFECYCLE_ACTION_RESTART;
vmdef->onCrash = VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY;
vmdef->onPoweroff = VIR_DOMAIN_LIFECYCLE_ACTION_DESTROY;
vmdef->virtType = VIR_DOMAIN_VIRT_LXC;
/* Value not handled by the LXC driver, setting to
* minimum required to make XML parsing pass */
if (virDomainDefSetVcpusMax(vmdef, 1, xmlopt) < 0)
goto error;
if (virDomainDefSetVcpus(vmdef, 1) < 0)
goto error;
vmdef->nfss = 0;
vmdef->os.type = VIR_DOMAIN_OSTYPE_EXE;
if (virConfGetValueString(properties, "lxc.arch", &value) > 0) {
virArch arch = virArchFromString(value);
if (arch == VIR_ARCH_NONE && STREQ(value, "x86"))
arch = VIR_ARCH_I686;
else if (arch == VIR_ARCH_NONE && STREQ(value, "amd64"))
arch = VIR_ARCH_X86_64;
vmdef->os.arch = arch;
VIR_FREE(value);
}
if (VIR_STRDUP(vmdef->os.init, "/sbin/init") < 0)
goto error;
if (virConfGetValueString(properties, "lxc.uts.name", &value) <= 0) {
virResetLastError();
/* Check for pre LXC 3.0 legacy key */
if (virConfGetValueString(properties, "lxc.utsname", &value) <= 0)
goto error;
}
if (VIR_STRDUP(vmdef->name, value) < 0)
goto error;
if (!vmdef->name && (VIR_STRDUP(vmdef->name, "unnamed") < 0))
goto error;
if (lxcSetRootfs(vmdef, properties) < 0)
goto error;
/* LXC 3.0 uses "lxc.mount.fstab", while legacy used just "lxc.mount".
* In either case, generate the error to use "lxc.mount.entry" instead */
if (virConfGetValue(properties, "lxc.mount.fstab") ||
virConfGetValue(properties, "lxc.mount")) {
virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s",
_("lxc.mount.fstab or lxc.mount found, use "
"lxc.mount.entry lines instead"));
goto error;
}
/* Loop over lxc.mount.entry to add filesystem devices for them */
if (virConfWalk(properties, lxcFstabWalkCallback, vmdef) < 0)
goto error;
/* Network configuration */
if (lxcConvertNetworkSettings(vmdef, properties) < 0)
goto error;
/* Consoles */
if (lxcCreateConsoles(vmdef, properties) < 0)
goto error;
/* lxc.idmap or legacy lxc.id_map */
if (virConfWalk(properties, lxcIdmapWalkCallback, vmdef) < 0)
goto error;
/* lxc.cgroup.memory.* */
if (lxcSetMemTune(vmdef, properties) < 0)
goto error;
/* lxc.cgroup.cpu.* */
if (lxcSetCpuTune(vmdef, properties) < 0)
goto error;
/* lxc.cgroup.cpuset.* */
if (lxcSetCpusetTune(vmdef, properties) < 0)
goto error;
/* lxc.cgroup.blkio.* */
if (lxcSetBlkioTune(vmdef, properties) < 0)
goto error;
/* lxc.cap.drop */
lxcSetCapDrop(vmdef, properties);
if (virDomainDefPostParse(vmdef, caps, VIR_DOMAIN_DEF_PARSE_ABI_UPDATE,
xmlopt, NULL) < 0)
goto cleanup;
goto cleanup;
error:
virDomainDefFree(vmdef);
vmdef = NULL;
cleanup:
virConfFree(properties);
return vmdef;
}
