/* Delete all or a specific IP address from an interface. After this
* call either all or the given IP address will not be associated
* with the interface anymore.
*
* @ifname: The name of the (tap) interface
* @addr: An IPv4 address in dotted decimal format that the (tap)
* interface is not using anymore; provide NULL to remove all IP
* addresses associated with the given interface
*
* This function returns the number of IP addresses that are still
* known to be associated with this interface, in case of an error
* -1 is returned. Error conditions are:
* - IP addresses is not known to be associated with the interface
*/
int
virNWFilterIPAddrMapDelIPAddr(const char *ifname, const char *ipaddr)
{
int ret = -1;
virNWFilterVarValuePtr val = NULL;
virMutexLock(&ipAddressMapLock);
if (ipaddr != NULL) {
val = virHashLookup(ipAddressMap->hashTable, ifname);
if (val) {
if (virNWFilterVarValueGetCardinality(val) == 1 &&
STREQ(ipaddr,
virNWFilterVarValueGetNthValue(val, 0)))
goto remove_entry;
virNWFilterVarValueDelValue(val, ipaddr);
ret = virNWFilterVarValueGetCardinality(val);
}
} else {
remove_entry:
/* remove whole entry */
val = virNWFilterHashTableRemoveEntry(ipAddressMap, ifname);
virNWFilterVarValueFree(val);
ret = 0;
}
virMutexUnlock(&ipAddressMapLock);
return ret;
}
static int testSetOneParameter(virNWFilterHashTablePtr vars,
const char *name,
const char *value)
{
int ret = -1;
virNWFilterVarValuePtr val;
if ((val = virHashLookup(vars->hashTable, name)) == NULL) {
val = virNWFilterVarValueCreateSimpleCopyValue(value);
if (!val)
goto cleanup;
if (virNWFilterHashTablePut(vars, name, val) < 0) {
virNWFilterVarValueFree(val);
goto cleanup;
}
} else {
if (virNWFilterVarValueAddValueCopy(val, value) < 0)
goto cleanup;
}
ret = 0;
cleanup:
return ret;
}
virNWFilterVarValuePtr
virNWFilterVarValueCopy(const virNWFilterVarValue *val)
{
virNWFilterVarValuePtr res;
size_t i;
char *str;
if (VIR_ALLOC(res) < 0)
return NULL;
res->valType = val->valType;
switch (res->valType) {
case NWFILTER_VALUE_TYPE_SIMPLE:
if (VIR_STRDUP(res->u.simple.value, val->u.simple.value) < 0)
goto err_exit;
break;
case NWFILTER_VALUE_TYPE_ARRAY:
if (VIR_ALLOC_N(res->u.array.values, val->u.array.nValues) < 0)
goto err_exit;
res->u.array.nValues = val->u.array.nValues;
for (i = 0; i < val->u.array.nValues; i++) {
if (VIR_STRDUP(str, val->u.array.values[i]) < 0)
goto err_exit;
res->u.array.values[i] = str;
}
break;
case NWFILTER_VALUE_TYPE_LAST:
break;
}
return res;
err_exit:
virNWFilterVarValueFree(res);
return NULL;
}