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21ea73e8f4
virNetDevVPortProfile has (had) a type field that can be set to one of several values, and a union of several structs, one for each type. When a domain's interface object is of type "network", the domain config may not know beforehand which type of virtualport is going to be provided in the actual device handed down from the network driver at runtime, but may want to set some values in the virtualport that may or may not be used, depending on the type. To support this usage, this patch replaces the union of structs with toplevel fields in the struct, making it possible for all of the fields to be set at the same time.
150 lines
4.9 KiB
C
150 lines
4.9 KiB
C
/*
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* Copyright (C) 2012 Nicira, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Dan Wendlandt <dan@nicira.com>
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* Kyle Mestery <kmestery@cisco.com>
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* Ansis Atteka <aatteka@nicira.com>
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*/
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#include <config.h>
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#include "virnetdevopenvswitch.h"
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#include "command.h"
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#include "memory.h"
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#include "virterror_internal.h"
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#include "virmacaddr.h"
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#define VIR_FROM_THIS VIR_FROM_NONE
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/**
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* virNetDevOpenvswitchAddPort:
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* @brname: the bridge name
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* @ifname: the network interface name
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* @macaddr: the mac address of the virtual interface
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* @vmuuid: the Domain UUID that has this interface
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* @ovsport: the ovs specific fields
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*
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* Add an interface to the OVS bridge
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*
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* Returns 0 in case of success or -1 in case of failure.
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*/
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int virNetDevOpenvswitchAddPort(const char *brname, const char *ifname,
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const virMacAddrPtr macaddr,
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const unsigned char *vmuuid,
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virNetDevVPortProfilePtr ovsport)
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{
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int ret = -1;
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virCommandPtr cmd = NULL;
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char macaddrstr[VIR_MAC_STRING_BUFLEN];
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char ifuuidstr[VIR_UUID_STRING_BUFLEN];
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char vmuuidstr[VIR_UUID_STRING_BUFLEN];
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char *attachedmac_ex_id = NULL;
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char *ifaceid_ex_id = NULL;
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char *profile_ex_id = NULL;
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char *vmid_ex_id = NULL;
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virMacAddrFormat(macaddr, macaddrstr);
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virUUIDFormat(ovsport->interfaceID, ifuuidstr);
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virUUIDFormat(vmuuid, vmuuidstr);
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if (virAsprintf(&attachedmac_ex_id, "external-ids:attached-mac=\"%s\"",
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macaddrstr) < 0)
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goto out_of_memory;
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if (virAsprintf(&ifaceid_ex_id, "external-ids:iface-id=\"%s\"",
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ifuuidstr) < 0)
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goto out_of_memory;
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if (virAsprintf(&vmid_ex_id, "external-ids:vm-id=\"%s\"",
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vmuuidstr) < 0)
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goto out_of_memory;
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if (ovsport->profileID[0] != '\0') {
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if (virAsprintf(&profile_ex_id, "external-ids:port-profile=\"%s\"",
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ovsport->profileID) < 0)
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goto out_of_memory;
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}
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cmd = virCommandNew(OVSVSCTL);
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if (ovsport->profileID[0] == '\0') {
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virCommandAddArgList(cmd, "--", "--may-exist", "add-port",
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brname, ifname,
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"--", "set", "Interface", ifname, attachedmac_ex_id,
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"--", "set", "Interface", ifname, ifaceid_ex_id,
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"--", "set", "Interface", ifname, vmid_ex_id,
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"--", "set", "Interface", ifname,
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"external-ids:iface-status=active",
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NULL);
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} else {
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virCommandAddArgList(cmd, "--", "--may-exist", "add-port",
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brname, ifname,
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"--", "set", "Interface", ifname, attachedmac_ex_id,
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"--", "set", "Interface", ifname, ifaceid_ex_id,
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"--", "set", "Interface", ifname, vmid_ex_id,
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"--", "set", "Interface", ifname, profile_ex_id,
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"--", "set", "Interface", ifname,
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"external-ids:iface-status=active",
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NULL);
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}
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if (virCommandRun(cmd, NULL) < 0) {
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virReportSystemError(VIR_ERR_INTERNAL_ERROR,
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_("Unable to add port %s to OVS bridge %s"),
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ifname, brname);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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VIR_FREE(attachedmac_ex_id);
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VIR_FREE(ifaceid_ex_id);
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VIR_FREE(vmid_ex_id);
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VIR_FREE(profile_ex_id);
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virCommandFree(cmd);
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return ret;
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out_of_memory:
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virReportOOMError();
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goto cleanup;
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}
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/**
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* virNetDevOpenvswitchRemovePort:
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* @ifname: the network interface name
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*
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* Deletes an interface from a OVS bridge
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*
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* Returns 0 in case of success or -1 in case of failure.
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*/
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int virNetDevOpenvswitchRemovePort(const char *brname ATTRIBUTE_UNUSED, const char *ifname)
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{
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int ret = -1;
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virCommandPtr cmd = NULL;
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cmd = virCommandNew(OVSVSCTL);
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virCommandAddArgList(cmd, "--", "--if-exists", "del-port", ifname, NULL);
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if (virCommandRun(cmd, NULL) < 0) {
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virReportSystemError(VIR_ERR_INTERNAL_ERROR,
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_("Unable to delete port %s from OVS"), ifname);
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goto cleanup;
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}
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ret = 0;
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cleanup:
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virCommandFree(cmd);
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return ret;
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}
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