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https://gitlab.com/libvirt/libvirt.git
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conf: split <forward> parser/clear into separate functions
virNetworkDefUpdateForward requires separate functions to parse and clear a virNetworkForwardDef by itself, but they were previously just inlined in the virNetworkDef parse and free functions. This patch makes them into separate functions.
This commit is contained in:
Laine Stump
parent
47c94b6563
commit
71e30eff46
@ -176,7 +176,24 @@ virNetworkDNSDefClear(virNetworkDNSDefPtr def)
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}
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}
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void virNetworkDefFree(virNetworkDefPtr def)
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static void
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virNetworkForwardDefClear(virNetworkForwardDefPtr def)
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{
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int ii;
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for (ii = 0 ; ii < def->npfs && def->pfs ; ii++) {
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virNetworkForwardPfDefClear(&def->pfs[ii]);
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}
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VIR_FREE(def->pfs);
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for (ii = 0 ; ii < def->nifs && def->ifs ; ii++) {
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virNetworkForwardIfDefClear(&def->ifs[ii]);
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}
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VIR_FREE(def->ifs);
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}
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void
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virNetworkDefFree(virNetworkDefPtr def)
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{
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int ii;
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@ -187,15 +204,7 @@ void virNetworkDefFree(virNetworkDefPtr def)
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VIR_FREE(def->bridge);
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VIR_FREE(def->domain);
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for (ii = 0 ; ii < def->forward.npfs && def->forward.pfs ; ii++) {
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virNetworkForwardPfDefClear(&def->forward.pfs[ii]);
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}
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VIR_FREE(def->forward.pfs);
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for (ii = 0 ; ii < def->forward.nifs && def->forward.ifs ; ii++) {
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virNetworkForwardIfDefClear(&def->forward.ifs[ii]);
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}
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VIR_FREE(def->forward.ifs);
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virNetworkForwardDefClear(&def->forward);
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for (ii = 0 ; ii < def->nips && def->ips ; ii++) {
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virNetworkIpDefClear(&def->ips[ii]);
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@ -1278,6 +1287,211 @@ cleanup:
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return result;
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}
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static int
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virNetworkForwardDefParseXML(const char *networkName,
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xmlNodePtr node,
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xmlXPathContextPtr ctxt,
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virNetworkForwardDefPtr def)
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{
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int ii, ret = -1;
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xmlNodePtr *forwardIfNodes = NULL;
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xmlNodePtr *forwardPfNodes = NULL;
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xmlNodePtr *forwardAddrNodes = NULL;
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int nForwardIfs, nForwardAddrs, nForwardPfs;
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char *forwardDev = NULL;
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char *forwardManaged = NULL;
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char *type = NULL;
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xmlNodePtr save = ctxt->node;
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ctxt->node = node;
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if (!(type = virXPathString("string(./@mode)", ctxt))) {
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def->type = VIR_NETWORK_FORWARD_NAT;
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} else {
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if ((def->type = virNetworkForwardTypeFromString(type)) < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("unknown forwarding type '%s'"), type);
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goto cleanup;
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}
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VIR_FREE(type);
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}
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forwardManaged = virXPathString("string(./@managed)", ctxt);
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if (forwardManaged != NULL &&
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STRCASEEQ(forwardManaged, "yes")) {
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def->managed = true;
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}
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/* bridge and hostdev modes can use a pool of physical interfaces */
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nForwardIfs = virXPathNodeSet("./interface", ctxt, &forwardIfNodes);
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if (nForwardIfs < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("invalid <interface> element found in <forward> of network %s"),
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networkName);
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goto cleanup;
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}
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nForwardAddrs = virXPathNodeSet("./address", ctxt, &forwardAddrNodes);
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if (nForwardAddrs < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("invalid <address> element found in <forward> of network %s"),
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networkName);
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goto cleanup;
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}
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nForwardPfs = virXPathNodeSet("./pf", ctxt, &forwardPfNodes);
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if (nForwardPfs < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("invalid <pf> element found in <forward> of network %s"),
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networkName);
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goto cleanup;
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}
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if (((nForwardIfs > 0) + (nForwardAddrs > 0) + (nForwardPfs > 0)) > 1) {
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virReportError(VIR_ERR_XML_ERROR,
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_("<address>, <interface>, and <pf> elements in <forward> "
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"of network %s are mutually exclusive"),
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networkName);
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goto cleanup;
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}
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forwardDev = virXPathString("string(./@dev)", ctxt);
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if (forwardDev && (nForwardAddrs > 0 || nForwardPfs > 0)) {
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virReportError(VIR_ERR_XML_ERROR, "%s",
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_("the <forward> 'dev' attribute cannot be used when "
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"<address> or <pf> sub-elements are present "
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"in network %s"));
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goto cleanup;
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}
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if (nForwardIfs > 0 || forwardDev) {
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if (VIR_ALLOC_N(def->ifs, MAX(nForwardIfs, 1)) < 0) {
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virReportOOMError();
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goto cleanup;
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}
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if (forwardDev) {
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def->ifs[0].device.dev = forwardDev;
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def->ifs[0].type = VIR_NETWORK_FORWARD_HOSTDEV_DEVICE_NETDEV;
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forwardDev = NULL;
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def->nifs++;
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}
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/* parse each <interface> */
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for (ii = 0; ii < nForwardIfs; ii++) {
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forwardDev = virXMLPropString(forwardIfNodes[ii], "dev");
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if (!forwardDev) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Missing required dev attribute in "
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"<forward> <interface> element of network %s"),
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networkName);
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goto cleanup;
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}
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if ((ii == 0) && (def->nifs == 1)) {
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/* both <forward dev='x'> and <interface dev='x'/> are
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* present. If they don't match, it's an error.
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*/
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if (STRNEQ(forwardDev, def->ifs[0].device.dev)) {
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virReportError(VIR_ERR_XML_ERROR,
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_("<forward dev='%s'> must match first "
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"<interface dev='%s'/> in network %s"),
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def->ifs[0].device.dev,
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forwardDev, networkName);
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goto cleanup;
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}
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VIR_FREE(forwardDev);
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continue;
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}
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def->ifs[ii].device.dev = forwardDev;
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forwardDev = NULL;
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def->ifs[ii].type = VIR_NETWORK_FORWARD_HOSTDEV_DEVICE_NETDEV;
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def->nifs++;
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}
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} else if (nForwardAddrs > 0) {
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if (VIR_ALLOC_N(def->ifs, nForwardAddrs) < 0) {
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virReportOOMError();
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goto cleanup;
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}
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for (ii = 0; ii < nForwardAddrs; ii++) {
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if (!(type = virXMLPropString(forwardAddrNodes[ii], "type"))) {
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virReportError(VIR_ERR_XML_ERROR,
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_("missing address type in network %s"),
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networkName);
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goto cleanup;
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}
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if ((def->ifs[ii].type = virNetworkForwardHostdevDeviceTypeFromString(type)) < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("unknown address type '%s' in network %s"),
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type, networkName);
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goto cleanup;
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}
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switch (def->ifs[ii].type) {
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case VIR_NETWORK_FORWARD_HOSTDEV_DEVICE_PCI:
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if (virDevicePCIAddressParseXML(forwardAddrNodes[ii],
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&def->ifs[ii].device.pci) < 0) {
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goto cleanup;
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}
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break;
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/* Add USB case here if we ever find a reason to support it */
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default:
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virReportError(VIR_ERR_XML_ERROR,
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_("unsupported address type '%s' in network %s"),
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type, networkName);
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goto cleanup;
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}
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VIR_FREE(type);
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def->nifs++;
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}
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} else if (nForwardPfs > 1) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Only one <pf> element is allowed in <forward> of network %s"),
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networkName);
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goto cleanup;
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} else if (nForwardPfs == 1) {
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if (VIR_ALLOC_N(def->pfs, nForwardPfs) < 0) {
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virReportOOMError();
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goto cleanup;
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}
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forwardDev = virXMLPropString(*forwardPfNodes, "dev");
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if (!forwardDev) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Missing required dev attribute "
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"in <pf> element of network '%s'"),
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networkName);
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goto cleanup;
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}
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def->pfs->dev = forwardDev;
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forwardDev = NULL;
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def->npfs++;
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}
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ret = 0;
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cleanup:
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VIR_FREE(type);
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VIR_FREE(forwardDev);
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VIR_FREE(forwardManaged);
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VIR_FREE(forwardPfNodes);
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VIR_FREE(forwardIfNodes);
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VIR_FREE(forwardAddrNodes);
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ctxt->node = save;
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return ret;
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}
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static virNetworkDefPtr
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virNetworkDefParseXML(xmlXPathContextPtr ctxt)
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{
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@ -1286,17 +1500,11 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt)
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char *stp = NULL;
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xmlNodePtr *ipNodes = NULL;
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xmlNodePtr *portGroupNodes = NULL;
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xmlNodePtr *forwardIfNodes = NULL;
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xmlNodePtr *forwardPfNodes = NULL;
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xmlNodePtr *forwardAddrNodes = NULL;
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int nIps, nPortGroups;
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xmlNodePtr dnsNode = NULL;
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xmlNodePtr virtPortNode = NULL;
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xmlNodePtr forwardNode = NULL;
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int nIps, nPortGroups, nForwardIfs, nForwardPfs, nForwardAddrs;
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char *ipv6nogwStr = NULL;
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char *forwardDev = NULL;
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char *forwardManaged = NULL;
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char *type = NULL;
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xmlNodePtr save = ctxt->node;
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xmlNodePtr bandwidthNode = NULL;
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xmlNodePtr vlanNode;
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@ -1362,6 +1570,7 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt)
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/* Parse bridge information */
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def->bridge = virXPathString("string(./bridge[1]/@name)", ctxt);
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stp = virXPathString("string(./bridge[1]/@stp)", ctxt);
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def->stp = (stp && STREQ(stp, "off")) ? 0 : 1;
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if (virXPathULong("string(./bridge[1]/@delay)", ctxt, &def->delay) < 0)
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def->delay = 0;
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@ -1446,246 +1655,82 @@ virNetworkDefParseXML(xmlXPathContextPtr ctxt)
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VIR_FREE(ipNodes);
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forwardNode = virXPathNode("./forward", ctxt);
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if (!forwardNode) {
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def->forward.type = VIR_NETWORK_FORWARD_NONE;
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def->stp = (stp && STREQ(stp, "off")) ? 0 : 1;
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} else {
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ctxt->node = forwardNode;
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tmp = virXPathString("string(./@mode)", ctxt);
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if (tmp) {
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if ((def->forward.type = virNetworkForwardTypeFromString(tmp)) < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("unknown forwarding type '%s'"), tmp);
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VIR_FREE(tmp);
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goto error;
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}
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VIR_FREE(tmp);
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} else {
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def->forward.type = VIR_NETWORK_FORWARD_NAT;
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}
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forwardDev = virXPathString("string(./@dev)", ctxt);
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forwardManaged = virXPathString("string(./@managed)", ctxt);
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if (forwardManaged != NULL) {
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if (STRCASEEQ(forwardManaged, "yes"))
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def->forward.managed = true;
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}
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/* all of these modes can use a pool of physical interfaces */
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nForwardIfs = virXPathNodeSet("./interface", ctxt, &forwardIfNodes);
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nForwardPfs = virXPathNodeSet("./pf", ctxt, &forwardPfNodes);
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nForwardAddrs = virXPathNodeSet("./address", ctxt, &forwardAddrNodes);
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if (nForwardIfs < 0 || nForwardPfs < 0 || nForwardAddrs < 0) {
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virReportError(VIR_ERR_XML_ERROR, "%s",
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_("No interface pool or SRIOV physical device given"));
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goto error;
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}
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if ((nForwardIfs > 0) && (nForwardAddrs > 0)) {
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virReportError(VIR_ERR_XML_ERROR, "%s",
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_("Address and interface attributes are mutually exclusive"));
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goto error;
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}
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if ((nForwardPfs > 0) && ((nForwardIfs > 0) || (nForwardAddrs > 0))) {
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virReportError(VIR_ERR_XML_ERROR, "%s",
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_("Address/interface attributes and Physical function are mutually exclusive "));
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goto error;
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}
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if (nForwardPfs == 1) {
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if (VIR_ALLOC_N(def->forward.pfs, nForwardPfs) < 0) {
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virReportOOMError();
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goto error;
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}
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if (forwardDev) {
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virReportError(VIR_ERR_XML_ERROR, "%s",
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_("A forward Dev should not be used when using a SRIOV PF"));
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goto error;
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}
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forwardDev = virXMLPropString(*forwardPfNodes, "dev");
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if (!forwardDev) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Missing required dev attribute in network '%s' pf element"),
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def->name);
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goto error;
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}
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def->forward.pfs->dev = forwardDev;
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forwardDev = NULL;
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def->forward.npfs++;
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} else if (nForwardPfs > 1) {
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virReportError(VIR_ERR_XML_ERROR, "%s",
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_("Use of more than one physical interface is not allowed"));
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goto error;
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}
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if (nForwardAddrs > 0) {
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int ii;
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if (VIR_ALLOC_N(def->forward.ifs, nForwardAddrs) < 0) {
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virReportOOMError();
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goto error;
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}
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if (forwardDev) {
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virReportError(VIR_ERR_XML_ERROR, "%s",
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_("A forward Dev should not be used when using address attribute"));
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goto error;
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}
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for (ii = 0; ii < nForwardAddrs; ii++) {
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type = virXMLPropString(forwardAddrNodes[ii], "type");
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if (type) {
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if ((def->forward.ifs[ii].type = virNetworkForwardHostdevDeviceTypeFromString(type)) < 0) {
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virReportError(VIR_ERR_XML_ERROR,
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_("unknown address type '%s'"), type);
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goto error;
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}
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} else {
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virReportError(VIR_ERR_XML_ERROR,
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"%s", _("No type specified for device address"));
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goto error;
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}
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switch (def->forward.ifs[ii].type) {
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case VIR_NETWORK_FORWARD_HOSTDEV_DEVICE_PCI:
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if (virDevicePCIAddressParseXML(forwardAddrNodes[ii], &(def->forward.ifs[ii].device.pci)) < 0)
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goto error;
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break;
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/* Add USB case here */
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default:
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virReportError(VIR_ERR_XML_ERROR,
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_("unknown address type '%s'"), type);
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goto error;
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}
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VIR_FREE(type);
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def->forward.nifs++;
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}
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}
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else if (nForwardIfs > 0 || forwardDev) {
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int ii;
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/* allocate array to hold all the portgroups */
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if (VIR_ALLOC_N(def->forward.ifs, MAX(nForwardIfs, 1)) < 0) {
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virReportOOMError();
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goto error;
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}
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if (forwardDev) {
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def->forward.ifs[0].device.dev = forwardDev;
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def->forward.ifs[0].type = VIR_NETWORK_FORWARD_HOSTDEV_DEVICE_NETDEV;
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forwardDev = NULL;
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def->forward.nifs++;
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}
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/* parse each forwardIf */
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for (ii = 0; ii < nForwardIfs; ii++) {
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forwardDev = virXMLPropString(forwardIfNodes[ii], "dev");
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if (!forwardDev) {
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virReportError(VIR_ERR_XML_ERROR,
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_("Missing required dev attribute in network '%s' forward interface element"),
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def->name);
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goto error;
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}
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if ((ii == 0) && (def->forward.nifs == 1)) {
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/* both forwardDev and an interface element are present.
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* If they don't match, it's an error. */
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if (STRNEQ(forwardDev, def->forward.ifs[0].device.dev)) {
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virReportError(VIR_ERR_XML_ERROR,
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_("forward dev '%s' must match first interface element dev '%s' in network '%s'"),
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def->forward.ifs[0].device.dev,
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forwardDev, def->name);
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goto error;
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}
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VIR_FREE(forwardDev);
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continue;
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}
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def->forward.ifs[ii].device.dev = forwardDev;
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forwardDev = NULL;
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def->forward.ifs[ii].type = VIR_NETWORK_FORWARD_HOSTDEV_DEVICE_NETDEV;
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def->forward.nifs++;
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}
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}
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VIR_FREE(type);
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VIR_FREE(forwardDev);
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VIR_FREE(forwardManaged);
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VIR_FREE(forwardPfNodes);
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VIR_FREE(forwardIfNodes);
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VIR_FREE(forwardAddrNodes);
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switch (def->forward.type) {
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case VIR_NETWORK_FORWARD_ROUTE:
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case VIR_NETWORK_FORWARD_NAT:
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/* It's pointless to specify L3 forwarding without specifying
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* the network we're on.
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*/
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if (def->nips == 0) {
|
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virReportError(VIR_ERR_XML_ERROR,
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_("%s forwarding requested, but no IP address provided for network '%s'"),
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virNetworkForwardTypeToString(def->forward.type),
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def->name);
|
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goto error;
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}
|
||||
if (def->forward.nifs > 1) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("multiple forwarding interfaces specified for network '%s', only one is supported"),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
def->stp = (stp && STREQ(stp, "off")) ? 0 : 1;
|
||||
break;
|
||||
case VIR_NETWORK_FORWARD_PRIVATE:
|
||||
case VIR_NETWORK_FORWARD_VEPA:
|
||||
case VIR_NETWORK_FORWARD_PASSTHROUGH:
|
||||
case VIR_NETWORK_FORWARD_HOSTDEV:
|
||||
if (def->bridge) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("bridge name not allowed in %s mode (network '%s')"),
|
||||
virNetworkForwardTypeToString(def->forward.type),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
/* fall through to next case */
|
||||
case VIR_NETWORK_FORWARD_BRIDGE:
|
||||
if (def->delay || stp) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("bridge delay/stp options only allowed in route, nat, and isolated mode, not in %s (network '%s')"),
|
||||
virNetworkForwardTypeToString(def->forward.type),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
if (def->bridge && (def->forward.nifs || def->forward.npfs)) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("A network with forward mode='%s' can specify "
|
||||
"a bridge name or a forward dev, but not "
|
||||
"both (network '%s')"),
|
||||
virNetworkForwardTypeToString(def->forward.type),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (forwardNode &&
|
||||
virNetworkForwardDefParseXML(def->name, forwardNode, ctxt, &def->forward) < 0) {
|
||||
goto error;
|
||||
}
|
||||
|
||||
/* Validate some items in the main NetworkDef that need to align
|
||||
* with the chosen forward mode.
|
||||
*/
|
||||
switch (def->forward.type) {
|
||||
case VIR_NETWORK_FORWARD_NONE:
|
||||
break;
|
||||
|
||||
case VIR_NETWORK_FORWARD_ROUTE:
|
||||
case VIR_NETWORK_FORWARD_NAT:
|
||||
/* It's pointless to specify L3 forwarding without specifying
|
||||
* the network we're on.
|
||||
*/
|
||||
if (def->nips == 0) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("%s forwarding requested, "
|
||||
"but no IP address provided for network '%s'"),
|
||||
virNetworkForwardTypeToString(def->forward.type),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
if (def->forward.nifs > 1) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("multiple forwarding interfaces specified "
|
||||
"for network '%s', only one is supported"),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
break;
|
||||
|
||||
case VIR_NETWORK_FORWARD_PRIVATE:
|
||||
case VIR_NETWORK_FORWARD_VEPA:
|
||||
case VIR_NETWORK_FORWARD_PASSTHROUGH:
|
||||
case VIR_NETWORK_FORWARD_HOSTDEV:
|
||||
if (def->bridge) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("bridge name not allowed in %s mode (network '%s')"),
|
||||
virNetworkForwardTypeToString(def->forward.type),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
/* fall through to next case */
|
||||
case VIR_NETWORK_FORWARD_BRIDGE:
|
||||
if (def->delay || stp) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("bridge delay/stp options only allowed in route, nat, and isolated mode, not in %s (network '%s')"),
|
||||
virNetworkForwardTypeToString(def->forward.type),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
if (def->bridge && (def->forward.nifs || def->forward.npfs)) {
|
||||
virReportError(VIR_ERR_XML_ERROR,
|
||||
_("A network with forward mode='%s' can specify "
|
||||
"a bridge name or a forward dev, but not "
|
||||
"both (network '%s')"),
|
||||
virNetworkForwardTypeToString(def->forward.type),
|
||||
def->name);
|
||||
goto error;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
VIR_FREE(stp);
|
||||
ctxt->node = save;
|
||||
return def;
|
||||
|
||||
error:
|
||||
error:
|
||||
VIR_FREE(stp);
|
||||
virNetworkDefFree(def);
|
||||
VIR_FREE(ipNodes);
|
||||
VIR_FREE(portGroupNodes);
|
||||
VIR_FREE(forwardIfNodes);
|
||||
VIR_FREE(forwardPfNodes);
|
||||
VIR_FREE(ipv6nogwStr);
|
||||
VIR_FREE(forwardDev);
|
||||
ctxt->node = save;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user