static int
libxlMakeChrdevStr(virDomainChrDefPtr def, char **buf)
{
virDomainChrSourceDef srcdef = def->source;
const char *type = virDomainChrTypeToString(srcdef.type);
if (!type) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
"%s", _("unknown chrdev type"));
return -1;
}
switch (srcdef.type) {
case VIR_DOMAIN_CHR_TYPE_NULL:
case VIR_DOMAIN_CHR_TYPE_STDIO:
case VIR_DOMAIN_CHR_TYPE_VC:
case VIR_DOMAIN_CHR_TYPE_PTY:
if (VIR_STRDUP(*buf, type) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_TYPE_FILE:
case VIR_DOMAIN_CHR_TYPE_PIPE:
if (virAsprintf(buf, "%s:%s", type, srcdef.data.file.path) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_TYPE_DEV:
if (VIR_STRDUP(*buf, srcdef.data.file.path) < 0)
return -1;
break;
case VIR_DOMAIN_CHR_TYPE_UDP: {
const char *connectHost = srcdef.data.udp.connectHost;
const char *bindHost = srcdef.data.udp.bindHost;
const char *bindService = srcdef.data.udp.bindService;
if (connectHost == NULL)
connectHost = "";
if (bindHost == NULL)
bindHost = "";
if (bindService == NULL)
bindService = "0";
if (virAsprintf(buf, "udp:%s:%s@%s:%s",
connectHost,
srcdef.data.udp.connectService,
bindHost,
bindService) < 0)
return -1;
break;
}
case VIR_DOMAIN_CHR_TYPE_TCP: {
const char *prefix;
if (srcdef.data.tcp.protocol == VIR_DOMAIN_CHR_TCP_PROTOCOL_TELNET)
prefix = "telnet";
else
prefix = "tcp";
if (virAsprintf(buf, "%s:%s:%s%s",
prefix,
srcdef.data.tcp.host,
srcdef.data.tcp.service,
srcdef.data.tcp.listen ? ",server,nowait" : "") < 0)
return -1;
break;
}
case VIR_DOMAIN_CHR_TYPE_UNIX:
if (virAsprintf(buf, "unix:%s%s",
srcdef.data.nix.path,
srcdef.data.nix.listen ? ",server,nowait" : "") < 0)
return -1;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported chardev '%s'"), type);
return -1;
}
return 0;
}
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;
}
