/**
* virGetStream:
* @conn: the hypervisor connection
*
* Allocates a new stream object. When the object is no longer needed,
* virObjectUnref() must be called in order to not leak data.
*
* Returns a pointer to the stream object, or NULL on error.
*/
virStreamPtr
virGetStream(virConnectPtr conn)
{
virStreamPtr ret = NULL;
if (virDataTypesInitialize() < 0)
return NULL;
if (!(ret = virObjectNew(virStreamClass)))
return NULL;
ret->conn = virObjectRef(conn);
return ret;
}
virNetServerServicePtr virNetServerServiceNewFD(int fd,
int auth,
bool readonly,
size_t nrequests_client_max,
virNetTLSContextPtr tls)
{
virNetServerServicePtr svc;
int i;
if (virNetServerServiceInitialize() < 0)
return NULL;
if (!(svc = virObjectNew(virNetServerServiceClass)))
return NULL;
svc->auth = auth;
svc->readonly = readonly;
svc->nrequests_client_max = nrequests_client_max;
svc->tls = virObjectRef(tls);
svc->nsocks = 1;
if (VIR_ALLOC_N(svc->socks, svc->nsocks) < 0)
goto no_memory;
if (virNetSocketNewListenFD(fd,
&svc->socks[0]) < 0)
goto error;
for (i = 0 ; i < svc->nsocks ; i++) {
/* IO callback is initially disabled, until we're ready
* to deal with incoming clients */
if (virNetSocketAddIOCallback(svc->socks[i],
0,
virNetServerServiceAccept,
svc,
virObjectFreeCallback) < 0)
goto error;
}
return svc;
no_memory:
virReportOOMError();
error:
virObjectUnref(svc);
return NULL;
}
/**
* virCapabilitiesNew:
* @hostarch: host machine architecture
* @offlineMigrate: non-zero if offline migration is available
* @liveMigrate: non-zero if live migration is available
*
* Allocate a new capabilities object
*/
virCapsPtr
virCapabilitiesNew(virArch hostarch,
int offlineMigrate,
int liveMigrate)
{
virCapsPtr caps;
if (virCapabilitiesInitialize() < 0)
return NULL;
if (!(caps = virObjectNew(virCapsClass)))
return NULL;
caps->host.arch = hostarch;
caps->host.offlineMigrate = offlineMigrate;
caps->host.liveMigrate = liveMigrate;
return caps;
}
virNetSASLSessionPtr virNetSASLSessionNewClient(virNetSASLContextPtr ctxt ATTRIBUTE_UNUSED,
const char *service,
const char *hostname,
const char *localAddr,
const char *remoteAddr,
const sasl_callback_t *cbs)
{
virNetSASLSessionPtr sasl = NULL;
int err;
if (!(sasl = virObjectNew(virNetSASLSessionClass)))
return NULL;
if (virMutexInit(&sasl->lock) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Failed to initialized mutex"));
VIR_FREE(sasl);
return NULL;
}
/* Arbitrary size for amount of data we can encode in a single block */
sasl->maxbufsize = 1 << 16;
err = sasl_client_new(service,
hostname,
localAddr,
remoteAddr,
cbs,
SASL_SUCCESS_DATA,
&sasl->conn);
if (err != SASL_OK) {
virReportError(VIR_ERR_AUTH_FAILED,
_("Failed to create SASL client context: %d (%s)"),
err, sasl_errstring(err, NULL, NULL));
goto cleanup;
}
return sasl;
cleanup:
virObjectUnref(sasl);
return NULL;
}
static dnsmasqCapsPtr
dnsmasqCapsNewEmpty(const char *binaryPath)
{
dnsmasqCapsPtr caps;
if (dnsmasqCapsInitialize() < 0)
return NULL;
if (!(caps = virObjectNew(dnsmasqCapsClass)))
return NULL;
if (!(caps->flags = virBitmapNew(DNSMASQ_CAPS_LAST)))
goto error;
if (VIR_STRDUP(caps->binaryPath, binaryPath ? binaryPath : DNSMASQ) < 0)
goto error;
return caps;
error:
virObjectUnref(caps);
return NULL;
}
virAdmServerPtr
virAdmGetServer(virAdmConnectPtr conn, const char *name)
{
virAdmServerPtr ret = NULL;
if (virDataTypesInitialize() < 0)
goto error;
if (!(ret = virObjectNew(virAdmServerClass)))
goto error;
if (VIR_STRDUP(ret->name, name) < 0)
goto error;
ret->conn = virObjectRef(conn);
return ret;
error:
virObjectUnref(ret);
return NULL;
}
virDomainCapsCPUModelsPtr
virDomainCapsCPUModelsNew(size_t nmodels)
{
virDomainCapsCPUModelsPtr cpuModels = NULL;
if (virDomainCapsInitialize() < 0)
return NULL;
if (!(cpuModels = virObjectNew(virDomainCapsCPUModelsClass)))
return NULL;
if (VIR_ALLOC_N(cpuModels->models, nmodels) < 0)
goto error;
cpuModels->nmodels_max = nmodels;
return cpuModels;
error:
virObjectUnref(cpuModels);
return NULL;
}
/**
* virObjectEventNew:
* @klass: subclass of event to be created
* @dispatcher: callback for dispatching the particular subclass of event
* @eventID: id of the event
* @id: id of the object the event describes, or 0
* @name: name of the object the event describes
* @uuid: uuid of the object the event describes
* @key: key for per-object filtering
*
* Create a new event, with the information common to all events.
*/
void *
virObjectEventNew(virClassPtr klass,
virObjectEventDispatchFunc dispatcher,
int eventID,
int id,
const char *name,
const unsigned char *uuid,
const char *key)
{
virObjectEventPtr event;
if (virObjectEventInitialize() < 0)
return NULL;
if (!virClassIsDerivedFrom(klass, virObjectEventClass)) {
virReportInvalidArg(klass,
_("Class %s must derive from virObjectEvent"),
virClassName(klass));
return NULL;
}
if (!(event = virObjectNew(klass)))
return NULL;
event->dispatch = dispatcher;
event->eventID = eventID;
event->remoteID = -1;
if (VIR_STRDUP(event->meta.name, name) < 0 ||
VIR_STRDUP(event->meta.key, key) < 0) {
virObjectUnref(event);
return NULL;
}
event->meta.id = id;
if (uuid)
memcpy(event->meta.uuid, uuid, VIR_UUID_BUFLEN);
VIR_DEBUG("obj=%p", event);
return event;
}
virNetClientProgramPtr virNetClientProgramNew(unsigned program,
unsigned version,
virNetClientProgramEventPtr events,
size_t nevents,
void *eventOpaque)
{
virNetClientProgramPtr prog;
if (virNetClientProgramInitialize() < 0)
return NULL;
if (!(prog = virObjectNew(virNetClientProgramClass)))
return NULL;
prog->program = program;
prog->version = version;
prog->events = events;
prog->nevents = nevents;
prog->eventOpaque = eventOpaque;
return prog;
}
virNetServerProgramPtr virNetServerProgramNew(unsigned program,
unsigned version,
virNetServerProgramProcPtr procs,
size_t nprocs)
{
virNetServerProgramPtr prog;
if (virNetServerProgramInitialize() < 0)
return NULL;
if (!(prog = virObjectNew(virNetServerProgramClass)))
return NULL;
prog->program = program;
prog->version = version;
prog->procs = procs;
prog->nprocs = nprocs;
VIR_DEBUG("prog=%p", prog);
return prog;
}
virAdmClientPtr
virAdmGetClient(virAdmServerPtr srv, const unsigned long long id,
unsigned long long timestamp, unsigned int transport)
{
virAdmClientPtr ret = NULL;
if (virDataTypesInitialize() < 0)
goto error;
if (!(ret = virObjectNew(virAdmClientClass)))
goto error;
ret->id = id;
ret->timestamp = timestamp;
ret->transport = transport;
ret->srv = virObjectRef(srv);
return ret;
error:
virObjectUnref(ret);
return NULL;
}
/**
* virGetStorageVol:
* @conn: the hypervisor connection
* @pool: pool owning the volume
* @name: pointer to the storage vol name
* @key: pointer to unique key of the volume
* @privateData: pointer to driver specific private data
* @freeFunc: private data cleanup function pointer specfic to driver
*
* Lookup if the storage vol is already registered for that connection,
* if yes return a new pointer to it, if no allocate a new structure,
* and register it in the table. In any case a corresponding call to
* virObjectUnref() is needed to not leak data.
*
* Returns a pointer to the storage vol, or NULL in case of failure
*/
virStorageVolPtr
virGetStorageVol(virConnectPtr conn, const char *pool, const char *name,
const char *key, void *privateData, virFreeCallback freeFunc)
{
virStorageVolPtr ret = NULL;
if (virDataTypesInitialize() < 0)
return NULL;
if (!VIR_IS_CONNECT(conn)) {
virLibConnError(VIR_ERR_INVALID_CONN, "%s", _("no connection"));
return NULL;
}
virCheckNonNullArgReturn(pool, NULL);
virCheckNonNullArgReturn(name, NULL);
virCheckNonNullArgReturn(key, NULL);
if (!(ret = virObjectNew(virStorageVolClass)))
return NULL;
if (VIR_STRDUP(ret->pool, pool) < 0 ||
VIR_STRDUP(ret->name, name) < 0 ||
VIR_STRDUP(ret->key, key) < 0)
goto error;
ret->conn = virObjectRef(conn);
/* set driver specific data */
ret->privateData = privateData;
ret->privateDataFreeFunc = freeFunc;
return ret;
error:
virObjectUnref(ret);
return NULL;
}
/**
* virGetDomainSnapshot:
* @domain: the domain to snapshot
* @name: pointer to the domain snapshot name
*
* Allocates a new domain snapshot object. When the object is no longer needed,
* virObjectUnref() must be called in order to not leak data.
*
* Returns a pointer to the domain snapshot object, or NULL on error.
*/
virDomainSnapshotPtr
virGetDomainSnapshot(virDomainPtr domain, const char *name)
{
virDomainSnapshotPtr ret = NULL;
if (virDataTypesInitialize() < 0)
return NULL;
virCheckDomainGoto(domain, error);
virCheckNonNullArgGoto(name, error);
if (!(ret = virObjectNew(virDomainSnapshotClass)))
goto error;
if (VIR_STRDUP(ret->name, name) < 0)
goto error;
ret->domain = virObjectRef(domain);
return ret;
error:
virObjectUnref(ret);
return NULL;
}
/**
* virGetNodeDevice:
* @conn: the hypervisor connection
* @name: device name (unique on node)
*
* Allocates a new node device object. When the object is no longer needed,
* virObjectUnref() must be called in order to not leak data.
*
* Returns a pointer to the node device object, or NULL on error.
*/
virNodeDevicePtr
virGetNodeDevice(virConnectPtr conn, const char *name)
{
virNodeDevicePtr ret = NULL;
if (virDataTypesInitialize() < 0)
return NULL;
virCheckConnectGoto(conn, error);
virCheckNonNullArgGoto(name, error);
if (!(ret = virObjectNew(virNodeDeviceClass)))
goto error;
if (VIR_STRDUP(ret->name, name) < 0)
goto error;
ret->conn = virObjectRef(conn);
return ret;
error:
virObjectUnref(ret);
return NULL;
}
/**
* virGetStoragePool:
* @conn: the hypervisor connection
* @name: pointer to the storage pool name
* @uuid: pointer to the uuid
* @privateData: pointer to driver specific private data
* @freeFunc: private data cleanup function pointer specfic to driver
*
* Lookup if the storage pool is already registered for that connection,
* if yes return a new pointer to it, if no allocate a new structure,
* and register it in the table. In any case a corresponding call to
* virObjectUnref() is needed to not leak data.
*
* Returns a pointer to the storage pool, or NULL in case of failure
*/
virStoragePoolPtr
virGetStoragePool(virConnectPtr conn, const char *name,
const unsigned char *uuid,
void *privateData, virFreeCallback freeFunc)
{
virStoragePoolPtr ret = NULL;
if (virDataTypesInitialize() < 0)
return NULL;
if (!VIR_IS_CONNECT(conn)) {
virLibConnError(VIR_ERR_INVALID_CONN, "%s", _("no connection"));
return NULL;
}
virCheckNonNullArgReturn(name, NULL);
virCheckNonNullArgReturn(uuid, NULL);
if (!(ret = virObjectNew(virStoragePoolClass)))
return NULL;
if (VIR_STRDUP(ret->name, name) < 0)
goto error;
ret->conn = virObjectRef(conn);
memcpy(&(ret->uuid[0]), uuid, VIR_UUID_BUFLEN);
/* set the driver specific data */
ret->privateData = privateData;
ret->privateDataFreeFunc = freeFunc;
return ret;
error:
virObjectUnref(ret);
return NULL;
}
int
libxlDomainMigrationPrepare(virConnectPtr dconn,
virDomainDefPtr def,
const char *uri_in,
char **uri_out,
unsigned int flags)
{
libxlDriverPrivatePtr driver = dconn->privateData;
virDomainObjPtr vm = NULL;
char *hostname = NULL;
unsigned short port;
char portstr[100];
virURIPtr uri = NULL;
virNetSocketPtr *socks = NULL;
size_t nsocks = 0;
int nsocks_listen = 0;
libxlMigrationDstArgs *args;
size_t i;
int ret = -1;
if (!(vm = virDomainObjListAdd(driver->domains, def,
driver->xmlopt,
VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
VIR_DOMAIN_OBJ_LIST_ADD_CHECK_LIVE,
NULL)))
goto cleanup;
/* Create socket connection to receive migration data */
if (!uri_in) {
if ((hostname = virGetHostname()) == NULL)
goto cleanup;
if (STRPREFIX(hostname, "localhost")) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("hostname on destination resolved to localhost,"
" but migration requires an FQDN"));
goto cleanup;
}
if (virPortAllocatorAcquire(driver->migrationPorts, &port) < 0)
goto cleanup;
if (virAsprintf(uri_out, "tcp://%s:%d", hostname, port) < 0)
goto cleanup;
} else {
if (!(STRPREFIX(uri_in, "tcp://"))) {
/* not full URI, add prefix tcp:// */
char *tmp;
if (virAsprintf(&tmp, "tcp://%s", uri_in) < 0)
goto cleanup;
uri = virURIParse(tmp);
VIR_FREE(tmp);
} else {
uri = virURIParse(uri_in);
}
if (uri == NULL) {
virReportError(VIR_ERR_INVALID_ARG,
_("unable to parse URI: %s"),
uri_in);
goto cleanup;
}
if (uri->server == NULL) {
virReportError(VIR_ERR_INVALID_ARG,
_("missing host in migration URI: %s"),
uri_in);
goto cleanup;
} else {
hostname = uri->server;
}
if (uri->port == 0) {
if (virPortAllocatorAcquire(driver->migrationPorts, &port) < 0)
goto cleanup;
} else {
port = uri->port;
}
if (virAsprintf(uri_out, "tcp://%s:%d", hostname, port) < 0)
goto cleanup;
}
snprintf(portstr, sizeof(portstr), "%d", port);
if (virNetSocketNewListenTCP(hostname, portstr, &socks, &nsocks) < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("Fail to create socket for incoming migration"));
goto cleanup;
}
if (libxlMigrationDstArgsInitialize() < 0)
goto cleanup;
if (!(args = virObjectNew(libxlMigrationDstArgsClass)))
goto cleanup;
args->conn = dconn;
args->vm = vm;
args->flags = flags;
args->socks = socks;
args->nsocks = nsocks;
for (i = 0; i < nsocks; i++) {
if (virNetSocketSetBlocking(socks[i], true) < 0)
continue;
if (virNetSocketListen(socks[i], 1) < 0)
continue;
if (virNetSocketAddIOCallback(socks[i],
VIR_EVENT_HANDLE_READABLE,
libxlDoMigrateReceive,
args,
virObjectFreeCallback) < 0)
continue;
/*
* Successfully added sock to event loop. Take a ref on args to
* ensure it is not freed until sock is removed from the event loop.
* Ref is dropped in virObjectFreeCallback after being removed
* from the event loop.
*/
virObjectRef(args);
nsocks_listen++;
}
/* Done with args in this function, drop reference */
virObjectUnref(args);
if (!nsocks_listen)
goto cleanup;
ret = 0;
goto done;
cleanup:
for (i = 0; i < nsocks; i++) {
virNetSocketClose(socks[i]);
virObjectUnref(socks[i]);
}
done:
virURIFree(uri);
if (vm)
virObjectUnlock(vm);
return ret;
}
virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
{
virQEMUDriverConfigPtr cfg;
if (virQEMUConfigInitialize() < 0)
return NULL;
if (!(cfg = virObjectNew(virQEMUDriverConfigClass)))
return NULL;
cfg->uri = privileged ? "qemu:///system" : "qemu:///session";
if (privileged) {
if (virGetUserID(QEMU_USER, &cfg->user) < 0)
goto error;
if (virGetGroupID(QEMU_GROUP, &cfg->group) < 0)
goto error;
} else {
cfg->user = (uid_t)-1;
cfg->group = (gid_t)-1;
}
cfg->dynamicOwnership = privileged;
cfg->cgroupControllers = -1; /* -1 == auto-detect */
if (privileged) {
if (virAsprintf(&cfg->logDir,
"%s/log/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (VIR_STRDUP(cfg->configBaseDir, SYSCONFDIR "/libvirt") < 0)
goto error;
if (virAsprintf(&cfg->stateDir,
"%s/run/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->cacheDir,
"%s/cache/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->libDir,
"%s/lib/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->saveDir, "%s/save", cfg->libDir) < 0)
goto error;
if (virAsprintf(&cfg->snapshotDir, "%s/snapshot", cfg->libDir) < 0)
goto error;
if (virAsprintf(&cfg->autoDumpPath, "%s/dump", cfg->libDir) < 0)
goto error;
if (virAsprintf(&cfg->channelTargetDir,
"%s/channel/target", cfg->libDir) < 0)
goto error;
if (virAsprintf(&cfg->nvramDir, "%s/nvram", cfg->libDir) < 0)
goto error;
} else {
char *rundir;
char *cachedir;
cachedir = virGetUserCacheDirectory();
if (!cachedir)
goto error;
if (virAsprintf(&cfg->logDir,
"%s/qemu/log", cachedir) < 0) {
VIR_FREE(cachedir);
goto error;
}
if (virAsprintf(&cfg->cacheDir, "%s/qemu/cache", cachedir) < 0) {
VIR_FREE(cachedir);
goto error;
}
VIR_FREE(cachedir);
rundir = virGetUserRuntimeDirectory();
if (!rundir)
goto error;
if (virAsprintf(&cfg->stateDir, "%s/qemu/run", rundir) < 0) {
VIR_FREE(rundir);
goto error;
}
VIR_FREE(rundir);
if (!(cfg->configBaseDir = virGetUserConfigDirectory()))
goto error;
if (virAsprintf(&cfg->libDir, "%s/qemu/lib", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->saveDir, "%s/qemu/save", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->snapshotDir, "%s/qemu/snapshot", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->autoDumpPath, "%s/qemu/dump", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->channelTargetDir,
"%s/qemu/channel/target", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->nvramDir,
"%s/qemu/nvram", cfg->configBaseDir) < 0)
goto error;
}
if (virAsprintf(&cfg->configDir, "%s/qemu", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->autostartDir, "%s/qemu/autostart", cfg->configBaseDir) < 0)
goto error;
if (VIR_STRDUP(cfg->vncListen, "127.0.0.1") < 0)
goto error;
if (VIR_STRDUP(cfg->vncTLSx509certdir, SYSCONFDIR "/pki/libvirt-vnc") < 0)
goto error;
if (VIR_STRDUP(cfg->spiceListen, "127.0.0.1") < 0)
goto error;
if (VIR_STRDUP(cfg->spiceTLSx509certdir,
SYSCONFDIR "/pki/libvirt-spice") < 0)
goto error;
cfg->remotePortMin = QEMU_REMOTE_PORT_MIN;
cfg->remotePortMax = QEMU_REMOTE_PORT_MAX;
cfg->webSocketPortMin = QEMU_WEBSOCKET_PORT_MIN;
cfg->webSocketPortMax = QEMU_WEBSOCKET_PORT_MAX;
cfg->migrationPortMin = QEMU_MIGRATION_PORT_MIN;
cfg->migrationPortMax = QEMU_MIGRATION_PORT_MAX;
/* For privileged driver, try and find hugetlbfs mounts automatically.
* Non-privileged driver requires admin to create a dir for the
* user, chown it, and then let user configure it manually. */
if (privileged &&
virFileFindHugeTLBFS(&cfg->hugetlbfs, &cfg->nhugetlbfs) < 0) {
/* This however is not implemented on all platforms. */
virErrorPtr err = virGetLastError();
if (err && err->code != VIR_ERR_NO_SUPPORT)
goto error;
}
if (VIR_STRDUP(cfg->bridgeHelperName, QEMU_BRIDGE_HELPER) < 0)
goto error;
cfg->clearEmulatorCapabilities = true;
cfg->securityDefaultConfined = true;
cfg->securityRequireConfined = false;
cfg->keepAliveInterval = 5;
cfg->keepAliveCount = 5;
cfg->seccompSandbox = -1;
cfg->logTimestamp = true;
cfg->stdioLogD = true;
#ifdef DEFAULT_LOADER_NVRAM
if (virFirmwareParseList(DEFAULT_LOADER_NVRAM,
&cfg->firmwares,
&cfg->nfirmwares) < 0)
goto error;
#else
if (VIR_ALLOC_N(cfg->firmwares, 2) < 0)
goto error;
cfg->nfirmwares = 2;
if (VIR_ALLOC(cfg->firmwares[0]) < 0 || VIR_ALLOC(cfg->firmwares[1]) < 0)
goto error;
if (VIR_STRDUP(cfg->firmwares[0]->name, VIR_QEMU_AAVMF_LOADER_PATH) < 0 ||
VIR_STRDUP(cfg->firmwares[0]->nvram, VIR_QEMU_AAVMF_NVRAM_PATH) < 0 ||
VIR_STRDUP(cfg->firmwares[1]->name, VIR_QEMU_OVMF_LOADER_PATH) < 0 ||
VIR_STRDUP(cfg->firmwares[1]->nvram, VIR_QEMU_OVMF_NVRAM_PATH) < 0)
goto error;
#endif
return cfg;
error:
virObjectUnref(cfg);
return NULL;
}
virQEMUDriverConfigPtr virQEMUDriverConfigNew(bool privileged)
{
virQEMUDriverConfigPtr cfg;
if (virQEMUConfigInitialize() < 0)
return NULL;
if (!(cfg = virObjectNew(virQEMUDriverConfigClass)))
return NULL;
cfg->privileged = privileged;
cfg->uri = privileged ? "qemu:///system" : "qemu:///session";
if (privileged) {
if (virGetUserID(QEMU_USER, &cfg->user) < 0)
goto error;
if (virGetGroupID(QEMU_GROUP, &cfg->group) < 0)
goto error;
} else {
cfg->user = (uid_t)-1;
cfg->group = (gid_t)-1;
}
cfg->dynamicOwnership = privileged;
cfg->cgroupControllers = -1; /* -1 == auto-detect */
if (privileged) {
if (virAsprintf(&cfg->logDir,
"%s/log/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (VIR_STRDUP(cfg->configBaseDir, SYSCONFDIR "/libvirt") < 0)
goto error;
if (virAsprintf(&cfg->stateDir,
"%s/run/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->libDir,
"%s/lib/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->cacheDir,
"%s/cache/libvirt/qemu", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->saveDir,
"%s/lib/libvirt/qemu/save", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->snapshotDir,
"%s/lib/libvirt/qemu/snapshot", LOCALSTATEDIR) < 0)
goto error;
if (virAsprintf(&cfg->autoDumpPath,
"%s/lib/libvirt/qemu/dump", LOCALSTATEDIR) < 0)
goto error;
} else {
char *rundir;
char *cachedir;
cachedir = virGetUserCacheDirectory();
if (!cachedir)
goto error;
if (virAsprintf(&cfg->logDir,
"%s/qemu/log", cachedir) < 0) {
VIR_FREE(cachedir);
goto error;
}
if (virAsprintf(&cfg->cacheDir, "%s/qemu/cache", cachedir) < 0) {
VIR_FREE(cachedir);
goto error;
}
VIR_FREE(cachedir);
rundir = virGetUserRuntimeDirectory();
if (!rundir)
goto error;
if (virAsprintf(&cfg->stateDir, "%s/qemu/run", rundir) < 0) {
VIR_FREE(rundir);
goto error;
}
VIR_FREE(rundir);
if (!(cfg->configBaseDir = virGetUserConfigDirectory()))
goto error;
if (virAsprintf(&cfg->libDir, "%s/qemu/lib", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->saveDir, "%s/qemu/save", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->snapshotDir, "%s/qemu/snapshot", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->autoDumpPath, "%s/qemu/dump", cfg->configBaseDir) < 0)
goto error;
}
if (virAsprintf(&cfg->configDir, "%s/qemu", cfg->configBaseDir) < 0)
goto error;
if (virAsprintf(&cfg->autostartDir, "%s/qemu/autostart", cfg->configBaseDir) < 0)
goto error;
if (VIR_STRDUP(cfg->vncListen, "127.0.0.1") < 0)
goto error;
if (VIR_STRDUP(cfg->vncTLSx509certdir, SYSCONFDIR "/pki/libvirt-vnc") < 0)
goto error;
if (VIR_STRDUP(cfg->spiceListen, "127.0.0.1") < 0)
goto error;
if (VIR_STRDUP(cfg->spiceTLSx509certdir,
SYSCONFDIR "/pki/libvirt-spice") < 0)
goto error;
cfg->remotePortMin = QEMU_REMOTE_PORT_MIN;
cfg->remotePortMax = QEMU_REMOTE_PORT_MAX;
cfg->webSocketPortMin = QEMU_WEBSOCKET_PORT_MIN;
cfg->webSocketPortMax = QEMU_WEBSOCKET_PORT_MAX;
cfg->migrationPortMin = QEMU_MIGRATION_PORT_MIN;
cfg->migrationPortMax = QEMU_MIGRATION_PORT_MAX;
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
/* For privileged driver, try and find hugepage mount automatically.
* Non-privileged driver requires admin to create a dir for the
* user, chown it, and then let user configure it manually */
if (privileged &&
!(cfg->hugetlbfsMount = virFileFindMountPoint("hugetlbfs"))) {
if (errno != ENOENT) {
virReportSystemError(errno, "%s",
_("unable to find hugetlbfs mountpoint"));
goto error;
}
}
#endif
if (VIR_STRDUP(cfg->bridgeHelperName, "/usr/libexec/qemu-bridge-helper") < 0)
goto error;
cfg->clearEmulatorCapabilities = true;
cfg->securityDefaultConfined = true;
cfg->securityRequireConfined = false;
cfg->keepAliveInterval = 5;
cfg->keepAliveCount = 5;
cfg->seccompSandbox = -1;
return cfg;
error:
virObjectUnref(cfg);
return NULL;
}
qemuAgentPtr
qemuAgentOpen(virDomainObjPtr vm,
virDomainChrSourceDefPtr config,
qemuAgentCallbacksPtr cb)
{
qemuAgentPtr mon;
if (!cb || !cb->eofNotify) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("EOF notify callback must be supplied"));
return NULL;
}
if (qemuAgentInitialize() < 0)
return NULL;
if (!(mon = virObjectNew(qemuAgentClass)))
return NULL;
if (virMutexInit(&mon->lock) < 0) {
virReportSystemError(errno, "%s",
_("cannot initialize monitor mutex"));
VIR_FREE(mon);
return NULL;
}
if (virCondInit(&mon->notify) < 0) {
virReportSystemError(errno, "%s",
_("cannot initialize monitor condition"));
virMutexDestroy(&mon->lock);
VIR_FREE(mon);
return NULL;
}
mon->fd = -1;
mon->vm = vm;
mon->cb = cb;
qemuAgentLock(mon);
switch (config->type) {
case VIR_DOMAIN_CHR_TYPE_UNIX:
mon->fd = qemuAgentOpenUnix(config->data.nix.path, vm->pid,
&mon->connectPending);
break;
case VIR_DOMAIN_CHR_TYPE_PTY:
mon->fd = qemuAgentOpenPty(config->data.file.path);
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unable to handle monitor type: %s"),
virDomainChrTypeToString(config->type));
goto cleanup;
}
if (mon->fd == -1)
goto cleanup;
if ((mon->watch = virEventAddHandle(mon->fd,
VIR_EVENT_HANDLE_HANGUP |
VIR_EVENT_HANDLE_ERROR |
VIR_EVENT_HANDLE_READABLE |
(mon->connectPending ?
VIR_EVENT_HANDLE_WRITABLE :
0),
qemuAgentIO,
mon,
virObjectFreeCallback)) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("unable to register monitor events"));
goto cleanup;
}
virObjectRef(mon);
VIR_DEBUG("New mon %p fd =%d watch=%d", mon, mon->fd, mon->watch);
qemuAgentUnlock(mon);
return mon;
cleanup:
/* We don't want the 'destroy' callback invoked during
* cleanup from construction failure, because that can
* give a double-unref on virDomainObjPtr in the caller,
* so kill the callbacks now.
*/
mon->cb = NULL;
qemuAgentUnlock(mon);
qemuAgentClose(mon);
return NULL;
}
libxlDriverConfigPtr
libxlDriverConfigNew(void)
{
libxlDriverConfigPtr cfg;
char *log_file = NULL;
char ebuf[1024];
unsigned int free_mem;
if (libxlConfigInitialize() < 0)
return NULL;
if (!(cfg = virObjectNew(libxlDriverConfigClass)))
return NULL;
if (VIR_STRDUP(cfg->configDir, LIBXL_CONFIG_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->autostartDir, LIBXL_AUTOSTART_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->logDir, LIBXL_LOG_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->stateDir, LIBXL_STATE_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->libDir, LIBXL_LIB_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->saveDir, LIBXL_SAVE_DIR) < 0)
goto error;
if (VIR_STRDUP(cfg->autoDumpDir, LIBXL_DUMP_DIR) < 0)
goto error;
if (virAsprintf(&log_file, "%s/libxl-driver.log", cfg->logDir) < 0)
goto error;
if (virFileMakePath(cfg->logDir) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("failed to create log dir '%s': %s"),
cfg->logDir,
virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
if ((cfg->logger_file = fopen(log_file, "a")) == NULL) {
VIR_ERROR(_("Failed to create log file '%s': %s"),
log_file, virStrerror(errno, ebuf, sizeof(ebuf)));
goto error;
}
VIR_FREE(log_file);
cfg->logger =
(xentoollog_logger *)xtl_createlogger_stdiostream(cfg->logger_file,
XTL_DEBUG, 0);
if (!cfg->logger) {
VIR_ERROR(_("cannot create logger for libxenlight, disabling driver"));
goto error;
}
if (libxl_ctx_alloc(&cfg->ctx, LIBXL_VERSION, 0, cfg->logger)) {
VIR_ERROR(_("cannot initialize libxenlight context, probably not "
"running in a Xen Dom0, disabling driver"));
goto error;
}
if ((cfg->verInfo = libxl_get_version_info(cfg->ctx)) == NULL) {
VIR_ERROR(_("cannot version information from libxenlight, "
"disabling driver"));
goto error;
}
cfg->version = (cfg->verInfo->xen_version_major * 1000000) +
(cfg->verInfo->xen_version_minor * 1000);
/* This will fill xenstore info about free and dom0 memory if missing,
* should be called before starting first domain */
if (libxl_get_free_memory(cfg->ctx, &free_mem)) {
VIR_ERROR(_("Unable to configure libxl's memory management parameters"));
goto error;
}
/* setup autoballoon */
if (libxlGetAutoballoonConf(cfg, &cfg->autoballoon) < 0)
goto error;
return cfg;
error:
VIR_FREE(log_file);
virObjectUnref(cfg);
return NULL;
}
static virNetSocketPtr virNetSocketNew(virSocketAddrPtr localAddr,
virSocketAddrPtr remoteAddr,
bool isClient,
int fd, int errfd, pid_t pid)
{
virNetSocketPtr sock;
int no_slow_start = 1;
if (virNetSocketInitialize() < 0)
return NULL;
VIR_DEBUG("localAddr=%p remoteAddr=%p fd=%d errfd=%d pid=%lld",
localAddr, remoteAddr,
fd, errfd, (long long) pid);
if (virSetCloseExec(fd) < 0) {
virReportSystemError(errno, "%s",
_("Unable to set close-on-exec flag"));
return NULL;
}
if (virSetNonBlock(fd) < 0) {
virReportSystemError(errno, "%s",
_("Unable to enable non-blocking flag"));
return NULL;
}
if (!(sock = virObjectNew(virNetSocketClass)))
return NULL;
if (virMutexInit(&sock->lock) < 0) {
virReportSystemError(errno, "%s",
_("Unable to initialize mutex"));
VIR_FREE(sock);
return NULL;
}
if (localAddr)
sock->localAddr = *localAddr;
if (remoteAddr)
sock->remoteAddr = *remoteAddr;
sock->fd = fd;
sock->errfd = errfd;
sock->pid = pid;
/* Disable nagle for TCP sockets */
if (sock->localAddr.data.sa.sa_family == AF_INET ||
sock->localAddr.data.sa.sa_family == AF_INET6) {
if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
&no_slow_start,
sizeof(no_slow_start)) < 0) {
virReportSystemError(errno, "%s",
_("Unable to disable nagle algorithm"));
goto error;
}
}
if (localAddr &&
!(sock->localAddrStr = virSocketAddrFormatFull(localAddr, true, ";")))
goto error;
if (remoteAddr &&
!(sock->remoteAddrStr = virSocketAddrFormatFull(remoteAddr, true, ";")))
goto error;
sock->client = isClient;
PROBE(RPC_SOCKET_NEW,
"sock=%p fd=%d errfd=%d pid=%lld localAddr=%s, remoteAddr=%s",
sock, fd, errfd, (long long) pid,
NULLSTR(sock->localAddrStr), NULLSTR(sock->remoteAddrStr));
return sock;
error:
sock->fd = sock->errfd = -1; /* Caller owns fd/errfd on failure */
virObjectUnref(sock);
return NULL;
}
