/**
* virConfParseStatement:
* @ctxt: the parsing context
*
* Parse one statement in the conf file
*
* Returns 0 in case of success and -1 in case of error
*/
static int
virConfParseStatement(virConfParserCtxtPtr ctxt)
{
const char *base;
char *name;
virConfValuePtr value;
char *comm = NULL;
SKIP_BLANKS_AND_EOL;
if (CUR == '#') {
return virConfParseComment(ctxt);
}
name = virConfParseName(ctxt);
if (name == NULL)
return -1;
SKIP_BLANKS;
if (CUR != '=') {
virConfError(ctxt, VIR_ERR_CONF_SYNTAX, _("expecting an assignment"));
VIR_FREE(name);
return -1;
}
NEXT;
SKIP_BLANKS;
value = virConfParseValue(ctxt);
if (value == NULL) {
VIR_FREE(name);
return -1;
}
SKIP_BLANKS;
if (CUR == '#') {
NEXT;
base = ctxt->cur;
while ((ctxt->cur < ctxt->end) && (!IS_EOL(CUR))) NEXT;
comm = strndup(base, ctxt->cur - base);
if (comm == NULL) {
virReportOOMError();
VIR_FREE(name);
virConfFreeValue(value);
return -1;
}
}
if (virConfAddEntry(ctxt->conf, name, value, comm) == NULL) {
VIR_FREE(name);
virConfFreeValue(value);
VIR_FREE(comm);
return -1;
}
return 0;
}
static int
xenFormatXLDomainDisks(virConfPtr conf, virDomainDefPtr def)
{
int ret = -1;
virConfValuePtr diskVal;
size_t i;
if (VIR_ALLOC(diskVal) < 0)
return -1;
diskVal->type = VIR_CONF_LIST;
diskVal->list = NULL;
for (i = 0; i < def->ndisks; i++) {
if (def->disks[i]->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)
continue;
if (xenFormatXLDisk(diskVal, def->disks[i]) < 0)
goto cleanup;
}
if (diskVal->list != NULL)
if (virConfSetValue(conf, "disk", diskVal) == 0)
diskVal = NULL;
ret = 0;
cleanup:
virConfFreeValue(diskVal);
return ret;
}
/**
* virConfSetValue:
* @conf: a configuration file handle
* @entry: the name of the entry
* @value: the new configuration value
*
* Set (or replace) the value associated to this entry in the configuration
* file. The passed in 'value' will be owned by the conf object upon return
* of this method, even in case of error. It should not be referenced again
* by the caller.
*
* Returns 0 on success, or -1 on failure.
*/
int
virConfSetValue (virConfPtr conf,
const char *setting,
virConfValuePtr value)
{
virConfEntryPtr cur, prev = NULL;
if (value && value->type == VIR_CONF_STRING && value->str == NULL)
return -1;
cur = conf->entries;
while (cur != NULL) {
if ((cur->name != NULL) && (STREQ(cur->name, setting))) {
break;
}
prev = cur;
cur = cur->next;
}
if (!cur) {
if (VIR_ALLOC(cur) < 0) {
virReportOOMError();
virConfFreeValue(value);
return -1;
}
cur->comment = NULL;
if (!(cur->name = strdup(setting))) {
virReportOOMError();
virConfFreeValue(value);
VIR_FREE(cur);
return -1;
}
cur->value = value;
if (prev) {
cur->next = prev->next;
prev->next = cur;
} else {
cur->next = conf->entries;
conf->entries = cur;
}
} else {
virConfFreeValue(cur->value);
cur->value = value;
}
return 0;
}
/**
* virConfSetValue:
* @conf: a configuration file handle
* @setting: the name of the entry
* @value: the new configuration value
*
* Set (or replace) the value associated to this entry in the configuration
* file. The passed in 'value' will be owned by the conf object upon return
* of this method, even in case of error. It should not be referenced again
* by the caller.
*
* Returns 0 on success, or -1 on failure.
*/
int
virConfSetValue(virConfPtr conf,
const char *setting,
virConfValuePtr value)
{
virConfEntryPtr cur, prev = NULL;
if (value && value->type == VIR_CONF_STRING && value->str == NULL) {
virConfFreeValue(value);
return -1;
}
cur = conf->entries;
while (cur != NULL) {
if (STREQ_NULLABLE(cur->name, setting))
break;
prev = cur;
cur = cur->next;
}
if (!cur) {
if (VIR_ALLOC(cur) < 0) {
virConfFreeValue(value);
return -1;
}
cur->comment = NULL;
if (VIR_STRDUP(cur->name, setting) < 0) {
virConfFreeValue(value);
VIR_FREE(cur);
return -1;
}
cur->value = value;
if (prev) {
cur->next = prev->next;
prev->next = cur;
} else {
cur->next = conf->entries;
conf->entries = cur;
}
} else {
virConfFreeValue(cur->value);
cur->value = value;
}
return 0;
}
/**
* virConfFreeList:
* @list: the list to free
*
* Free a list
*/
static void
virConfFreeList(virConfValuePtr list)
{
virConfValuePtr next;
while (list != NULL) {
next = list->next;
list->next = NULL;
virConfFreeValue(list);
list = next;
}
}
/**
* virConfFree:
* @conf: a configuration file handle
*
* Frees all data associated to the handle
*
* Returns 0 in case of success, -1 in case of error.
*/
int
virConfFree(virConfPtr conf)
{
virConfEntryPtr tmp;
if (conf == NULL)
return 0;
tmp = conf->entries;
while (tmp) {
virConfEntryPtr next;
VIR_FREE(tmp->name);
virConfFreeValue(tmp->value);
VIR_FREE(tmp->comment);
next = tmp->next;
VIR_FREE(tmp);
tmp = next;
}
VIR_FREE(conf);
return 0;
}
static int
xenFormatXLUSB(virConfPtr conf,
virDomainDefPtr def)
{
virConfValuePtr usbVal = NULL;
int hasUSB = 0;
size_t i;
for (i = 0; i < def->nhostdevs; i++) {
if (def->hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
def->hostdevs[i]->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
hasUSB = 1;
break;
}
}
if (!hasUSB)
return 0;
if (VIR_ALLOC(usbVal) < 0)
return -1;
usbVal->type = VIR_CONF_LIST;
usbVal->list = NULL;
for (i = 0; i < def->nhostdevs; i++) {
if (def->hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
def->hostdevs[i]->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) {
virConfValuePtr val, tmp;
char *buf;
if (virAsprintf(&buf, "hostbus=%x,hostaddr=%x",
def->hostdevs[i]->source.subsys.u.usb.bus,
def->hostdevs[i]->source.subsys.u.usb.device) < 0)
goto error;
if (VIR_ALLOC(val) < 0) {
VIR_FREE(buf);
goto error;
}
val->type = VIR_CONF_STRING;
val->str = buf;
tmp = usbVal->list;
while (tmp && tmp->next)
tmp = tmp->next;
if (tmp)
tmp->next = val;
else
usbVal->list = val;
}
}
if (usbVal->list != NULL) {
int ret = virConfSetValue(conf, "usbdev", usbVal);
usbVal = NULL;
if (ret < 0)
return -1;
}
VIR_FREE(usbVal);
return 0;
error:
virConfFreeValue(usbVal);
return -1;
}
static int
xenFormatXLInputDevs(virConfPtr conf, virDomainDefPtr def)
{
size_t i;
const char *devtype;
virConfValuePtr usbdevices = NULL, lastdev;
if (def->os.type == VIR_DOMAIN_OSTYPE_HVM) {
if (VIR_ALLOC(usbdevices) < 0)
goto error;
usbdevices->type = VIR_CONF_LIST;
usbdevices->list = NULL;
lastdev = NULL;
for (i = 0; i < def->ninputs; i++) {
if (def->inputs[i]->bus == VIR_DOMAIN_INPUT_BUS_USB) {
if (xenConfigSetInt(conf, "usb", 1) < 0)
goto error;
switch (def->inputs[i]->type) {
case VIR_DOMAIN_INPUT_TYPE_MOUSE:
devtype = "mouse";
break;
case VIR_DOMAIN_INPUT_TYPE_TABLET:
devtype = "tablet";
break;
case VIR_DOMAIN_INPUT_TYPE_KBD:
devtype = "keyboard";
break;
default:
continue;
}
if (lastdev == NULL) {
if (VIR_ALLOC(lastdev) < 0)
goto error;
usbdevices->list = lastdev;
} else {
if (VIR_ALLOC(lastdev->next) < 0)
goto error;
lastdev = lastdev->next;
}
lastdev->type = VIR_CONF_STRING;
if (VIR_STRDUP(lastdev->str, devtype) < 0)
goto error;
}
}
if (usbdevices->list != NULL) {
if (usbdevices->list->next == NULL) {
/* for compatibility with Xen <= 4.2, use old syntax when
* only one device present */
if (xenConfigSetString(conf, "usbdevice", usbdevices->list->str) < 0)
goto error;
virConfFreeValue(usbdevices);
} else {
virConfSetValue(conf, "usbdevice", usbdevices);
}
} else {
VIR_FREE(usbdevices);
}
}
return 0;
error:
virConfFreeValue(usbdevices);
return -1;
}
