Move guest interface management methods from qemu to hypervisor. These methods will be shared by networking support in ch driver. Signed-off-by: Praveen K Paladugu <prapal(a)linux.microsoft.com&gt; --- v4: * logging and formatting fixes v3: * Moved qemuInterfaceStopDevice/s methods into hypervisor, to keep all the related methods together. Signed-off-by: Praveen K Paladugu <prapal(a)linux.microsoft.com&gt; --- po/POTFILES | 1 + src/hypervisor/domain_interface.c | 370 ++++++++++++++++++++++++++++++ src/hypervisor/domain_interface.h | 41 ++++ src/hypervisor/meson.build | 1 + src/libvirt_private.syms | 8 + src/qemu/qemu_command.c | 6 +- src/qemu/qemu_hotplug.c | 5 +- src/qemu/qemu_interface.c | 339 +-------------------------- src/qemu/qemu_interface.h | 11 - src/qemu/qemu_process.c | 5 +- 10 files changed, 436 insertions(+), 351 deletions(-) create mode 100644 src/hypervisor/domain_interface.c create mode 100644 src/hypervisor/domain_interface.h diff --git a/po/POTFILES b/po/POTFILES index 3a51aea5cb..023c041f61 100644 --- a/po/POTFILES +++ b/po/POTFILES @@ -92,6 +92,7 @@ src/hyperv/hyperv_util.c src/hyperv/hyperv_wmi.c src/hypervisor/domain_cgroup.c src/hypervisor/domain_driver.c +src/hypervisor/domain_interface.c src/hypervisor/virhostdev.c src/interface/interface_backend_netcf.c src/interface/interface_backend_udev.c diff --git a/src/hypervisor/domain_interface.c b/src/hypervisor/domain_interface.c new file mode 100644 index 0000000000..07a83d2034 --- /dev/null +++ b/src/hypervisor/domain_interface.c @@ -0,0 +1,370 @@ +/* + * Copyright (C) 2015-2016 Red Hat, Inc. + * Copyright IBM Corp. 2014 + * + * domain_interface.c: methods to manage guest/domain interfaces + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>;. + */ + +#include <config.h> + +#include "domain_audit.h" +#include "domain_conf.h" +#include "domain_interface.h" +#include "domain_nwfilter.h" +#include "network_conf.h" +#include "viralloc.h" +#include "virconftypes.h" +#include "virebtables.h" +#include "virfile.h" +#include "virlog.h" +#include "virmacaddr.h" +#include "virnetdevbridge.h" +#include "virnetdevtap.h" + +#define VIR_FROM_THIS VIR_FROM_DOMAIN + +VIR_LOG_INIT("domain.interface"); + +bool +virDomainInterfaceIsVnetCompatModel(const virDomainNetDef *net) +{ + return (virDomainNetIsVirtioModel(net) || + net->model == VIR_DOMAIN_NET_MODEL_E1000E || + net->model == VIR_DOMAIN_NET_MODEL_IGB || + net->model == VIR_DOMAIN_NET_MODEL_VMXNET3); +} + +/* virDomainInterfaceEthernetConnect: + * @def: the definition of the VM + * @net: a net definition in the VM + * @ebtables: ebtales context + * @macFilter: whether driver support mac Filtering + * @privileged: whether running as privileged user + * @tapfd: array of file descriptor return value for the new device + * @tapfdsize: number of file descriptors in @tapfd + * + * Called *only* called if actualType is VIR_DOMAIN_NET_TYPE_ETHERNET + * (i.e. if the connection is made with a tap device) + */ +int +virDomainInterfaceEthernetConnect(virDomainDef *def, + virDomainNetDef *net, + ebtablesContext *ebtables, + bool macFilter, + bool privileged, + int *tapfd, + size_t tapfdSize) +{ + virMacAddr tapmac; + int ret = -1; + unsigned int tap_create_flags = VIR_NETDEV_TAP_CREATE_IFUP; + bool template_ifname = false; + const char *tunpath = "/dev/net/tun"; + const char *auditdev = tunpath; + + if (net->backend.tap) { + tunpath = net->backend.tap; + if (!privileged) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("cannot use custom tap device in session mode")); + goto cleanup; + } + } + + if (virDomainInterfaceIsVnetCompatModel(net)) + tap_create_flags |= VIR_NETDEV_TAP_CREATE_VNET_HDR; + + if (net->managed_tap == VIR_TRISTATE_BOOL_NO) { + if (!net->ifname) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("target dev must be supplied when managed='no'")); + goto cleanup; + } + if (virNetDevExists(net->ifname) != 1) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("target managed='no' but specified dev doesn't exist")); + goto cleanup; + } + + tap_create_flags |= VIR_NETDEV_TAP_CREATE_ALLOW_EXISTING; + + if (virNetDevMacVLanIsMacvtap(net->ifname)) { + auditdev = net->ifname; + if (virNetDevMacVLanTapOpen(net->ifname, tapfd, tapfdSize) < 0) + goto cleanup; + if (virNetDevMacVLanTapSetup(tapfd, tapfdSize, + virDomainInterfaceIsVnetCompatModel(net)) < 0) { + goto cleanup; + } + } else { + if (virNetDevTapCreate(&net->ifname, tunpath, tapfd, tapfdSize, + tap_create_flags) < 0) + goto cleanup; + } + } else { + + if (!net->ifname) + template_ifname = true; + + if (virNetDevTapCreate(&net->ifname, tunpath, tapfd, tapfdSize, + tap_create_flags) < 0) { + goto cleanup; + } + + /* The tap device's MAC address cannot match the MAC address + * used by the guest. This results in "received packet on + * vnetX with own address as source address" error logs from + * the kernel. + */ + virMacAddrSet(&tapmac, &net->mac); + if (tapmac.addr[0] == 0xFE) + tapmac.addr[0] = 0xFA; + else + tapmac.addr[0] = 0xFE; + + if (virNetDevSetMAC(net->ifname, &tapmac) < 0) + goto cleanup; + + if (virNetDevSetOnline(net->ifname, true) < 0) + goto cleanup; + } + + if (net->script && + virNetDevRunEthernetScript(net->ifname, net->script) < 0) + goto cleanup; + + if (macFilter && + ebtablesAddForwardAllowIn(ebtables, + net->ifname, + &net->mac) < 0) + goto cleanup; + + if (net->filter && + virDomainConfNWFilterInstantiate(def->name, def->uuid, net, false) < 0) { + goto cleanup; + } + + virDomainAuditNetDevice(def, net, auditdev, true); + + ret = 0; + + cleanup: + if (ret < 0) { + size_t i; + + virDomainAuditNetDevice(def, net, auditdev, false); + for (i = 0; i < tapfdSize && tapfd[i] >= 0; i++) + VIR_FORCE_CLOSE(tapfd[i]); + if (template_ifname) + VIR_FREE(net->ifname); + } + + return ret; +} + +/** + * virDomainInterfaceStartDevice: + * @net: net device to start + * + * Based upon the type of device provided, perform the appropriate + * work to completely activate the device and make it reachable from + * the rest of the network. + */ +int +virDomainInterfaceStartDevice(virDomainNetDef *net) +{ + virDomainNetType actualType = virDomainNetGetActualType(net); + + switch (actualType) { + case VIR_DOMAIN_NET_TYPE_BRIDGE: + case VIR_DOMAIN_NET_TYPE_NETWORK: + if (virDomainNetGetActualBridgeMACTableManager(net) + == VIR_NETWORK_BRIDGE_MAC_TABLE_MANAGER_LIBVIRT) { + /* libvirt is managing the FDB of the bridge this device + * is attaching to, so we have turned off learning and + * unicast_flood on the device to prevent the kernel from + * adding any FDB entries for it. This means we need to + * add an fdb entry ourselves, using the MAC address from + * the interface config. + */ + if (virNetDevBridgeFDBAdd(&net->mac, net->ifname, + VIR_NETDEVBRIDGE_FDB_FLAG_MASTER | + VIR_NETDEVBRIDGE_FDB_FLAG_TEMP) < 0) + return -1; + } + break; + + case VIR_DOMAIN_NET_TYPE_DIRECT: { + const char *physdev = virDomainNetGetActualDirectDev(net); + bool isOnline = true; + + /* set the physdev online if necessary. It may already be up, + * in which case we shouldn't re-up it just in case that causes + * some sort of "blip" in the physdev's status. + */ + if (physdev && virNetDevGetOnline(physdev, &isOnline) < 0) + return -1; + if (!isOnline && virNetDevSetOnline(physdev, true) < 0) + return -1; + + /* macvtap devices share their MAC address with the guest + * domain, and if they are set online prior to the domain CPUs + * being started, the host may send out traffic from this + * device that could confuse other entities on the network (in + * particular, if this new domain is the destination of a + * migration, and the source domain is still running, another + * host may mistakenly direct traffic for the guest to the + * destination domain rather than source domain). To prevent + * this, we create the macvtap device with IFF_UP false + * (i.e. "offline") then wait to bring it online until just as + * we are starting the domain CPUs. + */ + if (virNetDevSetOnline(net->ifname, true) < 0) + return -1; + break; + } + + case VIR_DOMAIN_NET_TYPE_ETHERNET: + if (virNetDevIPInfoAddToDev(net->ifname, &net->hostIP) < 0) + return -1; + + break; + + case VIR_DOMAIN_NET_TYPE_USER: + case VIR_DOMAIN_NET_TYPE_VHOSTUSER: + case VIR_DOMAIN_NET_TYPE_SERVER: + case VIR_DOMAIN_NET_TYPE_CLIENT: + case VIR_DOMAIN_NET_TYPE_MCAST: + case VIR_DOMAIN_NET_TYPE_UDP: + case VIR_DOMAIN_NET_TYPE_INTERNAL: + case VIR_DOMAIN_NET_TYPE_HOSTDEV: + case VIR_DOMAIN_NET_TYPE_VDPA: + case VIR_DOMAIN_NET_TYPE_NULL: + case VIR_DOMAIN_NET_TYPE_VDS: + case VIR_DOMAIN_NET_TYPE_LAST: + /* these types all require no action */ + break; + } + + return 0; +} + +/** + * virDomainInterfaceStartDevices: + * @def: domain definition + * + * Set all ifaces associated with this domain to the online state. + */ +int +virDomainInterfaceStartDevices(virDomainDef *def) +{ + size_t i; + + for (i = 0; i < def->nnets; i++) { + if (virDomainInterfaceStartDevice(def->nets[i]) < 0) + return -1; + } + return 0; +} + +/** + * virDomainInterfaceStopDevice: + * @net: net device to stop + * + * Based upon the type of device provided, perform the appropriate + * work to deactivate the device so that packets aren't forwarded to + * it from the rest of the network. + */ +int +virDomainInterfaceStopDevice(virDomainNetDef *net) +{ + virDomainNetType actualType = virDomainNetGetActualType(net); + + switch (actualType) { + case VIR_DOMAIN_NET_TYPE_BRIDGE: + case VIR_DOMAIN_NET_TYPE_NETWORK: + if (virDomainNetGetActualBridgeMACTableManager(net) + == VIR_NETWORK_BRIDGE_MAC_TABLE_MANAGER_LIBVIRT) { + /* remove the FDB entries that were added during + * virDomainInterfaceStartDevices() + */ + if (virNetDevBridgeFDBDel(&net->mac, net->ifname, + VIR_NETDEVBRIDGE_FDB_FLAG_MASTER | + VIR_NETDEVBRIDGE_FDB_FLAG_TEMP) < 0) + return -1; + } + break; + + case VIR_DOMAIN_NET_TYPE_DIRECT: { + const char *physdev = virDomainNetGetActualDirectDev(net); + + /* macvtap interfaces need to be marked !IFF_UP (ie "down") to + * prevent any host-generated traffic sent from this interface + * from putting bad info into the arp caches of other machines + * on this network. + */ + if (virNetDevSetOnline(net->ifname, false) < 0) + return -1; + + /* also mark the physdev down for passthrough macvtap, as the + * physdev has the same MAC address as the macvtap device. + */ + if (virDomainNetGetActualDirectMode(net) == + VIR_NETDEV_MACVLAN_MODE_PASSTHRU && + physdev && virNetDevSetOnline(physdev, false) < 0) + return -1; + break; + } + + case VIR_DOMAIN_NET_TYPE_ETHERNET: + case VIR_DOMAIN_NET_TYPE_USER: + case VIR_DOMAIN_NET_TYPE_VHOSTUSER: + case VIR_DOMAIN_NET_TYPE_SERVER: + case VIR_DOMAIN_NET_TYPE_CLIENT: + case VIR_DOMAIN_NET_TYPE_MCAST: + case VIR_DOMAIN_NET_TYPE_UDP: + case VIR_DOMAIN_NET_TYPE_INTERNAL: + case VIR_DOMAIN_NET_TYPE_HOSTDEV: + case VIR_DOMAIN_NET_TYPE_VDPA: + case VIR_DOMAIN_NET_TYPE_NULL: + case VIR_DOMAIN_NET_TYPE_VDS: + case VIR_DOMAIN_NET_TYPE_LAST: + /* these types all require no action */ + break; + } + + return 0; +} + +/** + * virDomainInterfaceStopDevices: + * @def: domain definition + * + * Make all interfaces associated with this domain inaccessible from + * the rest of the network. + */ +int +virDomainInterfaceStopDevices(virDomainDef *def) +{ + size_t i; + + for (i = 0; i < def->nnets; i++) { + if (virDomainInterfaceStopDevice(def->nets[i]) < 0) + return -1; + } + return 0; +} diff --git a/src/hypervisor/domain_interface.h b/src/hypervisor/domain_interface.h new file mode 100644 index 0000000000..68bf2ae51d --- /dev/null +++ b/src/hypervisor/domain_interface.h @@ -0,0 +1,41 @@ +/* + * Copyright (C) 2015-2016 Red Hat, Inc. + * Copyright IBM Corp. 2014 + * + * domain_interface.h: methods to manage guest/domain interfaces + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>;. + */ + +#pragma once + +#include "virebtables.h" + +int +virDomainInterfaceEthernetConnect(virDomainDef *def, + virDomainNetDef *net, + ebtablesContext *ebtables, + bool macFilter, + bool privileged, + int *tapfd, + size_t tapfdSize); + +bool +virDomainInterfaceIsVnetCompatModel(const virDomainNetDef *net); + +int virDomainInterfaceStartDevice(virDomainNetDef *net); +int virDomainInterfaceStartDevices(virDomainDef *def); +int virDomainInterfaceStopDevice(virDomainNetDef *net); +int virDomainInterfaceStopDevices(virDomainDef *def); diff --git a/src/hypervisor/meson.build b/src/hypervisor/meson.build index f35565b16b..819a9a82a2 100644 --- a/src/hypervisor/meson.build +++ b/src/hypervisor/meson.build @@ -1,6 +1,7 @@ hypervisor_sources = [ 'domain_cgroup.c', 'domain_driver.c', + 'domain_interface.c', 'virclosecallbacks.c', 'virhostdev.c', ] diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 553b01b8c0..b7f329be43 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -1630,6 +1630,14 @@ virDomainDriverNodeDeviceReset; virDomainDriverParseBlkioDeviceStr; virDomainDriverSetupPersistentDefBlkioParams; +# hypervisor/domain_interface.h +virDomainInterfaceEthernetConnect; +virDomainInterfaceIsVnetCompatModel; +virDomainInterfaceStartDevice; +virDomainInterfaceStartDevices; +virDomainInterfaceStopDevice; +virDomainInterfaceStopDevices; + # hypervisor/virclosecallbacks.h virCloseCallbacksDomainAdd; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index fd0f12f304..036f6ba2e5 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -43,6 +43,7 @@ #include "domain_nwfilter.h" #include "domain_addr.h" #include "domain_conf.h" +#include "domain_interface.h" #include "netdev_bandwidth_conf.h" #include "virnetdevopenvswitch.h" #include "device_conf.h" @@ -8505,7 +8506,10 @@ qemuBuildInterfaceConnect(virDomainObj *vm, break; case VIR_DOMAIN_NET_TYPE_ETHERNET: - if (qemuInterfaceEthernetConnect(vm->def, priv->driver, net, + if (virDomainInterfaceEthernetConnect(vm->def, net, + priv->driver->ebtables, + priv->driver->config->macFilter, + priv->driver->privileged, tapfd, tapfdSize) < 0) return -1; vhostfd = true; diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index fec7c4be4e..63a130c201 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -39,6 +39,7 @@ #include "qemu_virtiofs.h" #include "domain_audit.h" #include "domain_cgroup.h" +#include "domain_interface.h" #include "netdev_bandwidth_conf.h" #include "domain_nwfilter.h" #include "virlog.h" @@ -1272,7 +1273,7 @@ qemuDomainAttachNetDevice(virQEMUDriver *driver, } /* Set device online immediately */ - if (qemuInterfaceStartDevice(net) < 0) + if (virDomainInterfaceStartDevice(net) < 0) goto cleanup; qemuDomainInterfaceSetDefaultQDisc(driver, net); @@ -4772,7 +4773,7 @@ qemuDomainRemoveNetDevice(virQEMUDriver *driver, * affect the parent device (e.g. macvtap passthrough mode sets * the parent device offline) */ - ignore_value(qemuInterfaceStopDevice(net)); + ignore_value(virDomainInterfaceStopDevice(net)); qemuDomainObjEnterMonitor(vm); if (qemuMonitorRemoveNetdev(priv->mon, hostnet_name) < 0) { diff --git a/src/qemu/qemu_interface.c b/src/qemu/qemu_interface.c index 8856bb95a8..c2007c7043 100644 --- a/src/qemu/qemu_interface.c +++ b/src/qemu/qemu_interface.c @@ -24,6 +24,7 @@ #include "network_conf.h" #include "domain_audit.h" #include "domain_nwfilter.h" +#include "domain_interface.h" #include "qemu_interface.h" #include "viralloc.h" #include "virlog.h" @@ -41,211 +42,6 @@ VIR_LOG_INIT("qemu.qemu_interface"); -/** - * qemuInterfaceStartDevice: - * @net: net device to start - * - * Based upon the type of device provided, perform the appropriate - * work to completely activate the device and make it reachable from - * the rest of the network. - */ -int -qemuInterfaceStartDevice(virDomainNetDef *net) -{ - virDomainNetType actualType = virDomainNetGetActualType(net); - - switch (actualType) { - case VIR_DOMAIN_NET_TYPE_BRIDGE: - case VIR_DOMAIN_NET_TYPE_NETWORK: - if (virDomainNetGetActualBridgeMACTableManager(net) - == VIR_NETWORK_BRIDGE_MAC_TABLE_MANAGER_LIBVIRT) { - /* libvirt is managing the FDB of the bridge this device - * is attaching to, so we have turned off learning and - * unicast_flood on the device to prevent the kernel from - * adding any FDB entries for it. This means we need to - * add an fdb entry ourselves, using the MAC address from - * the interface config. - */ - if (virNetDevBridgeFDBAdd(&net->mac, net->ifname, - VIR_NETDEVBRIDGE_FDB_FLAG_MASTER | - VIR_NETDEVBRIDGE_FDB_FLAG_TEMP) < 0) - return -1; - } - break; - - case VIR_DOMAIN_NET_TYPE_DIRECT: { - const char *physdev = virDomainNetGetActualDirectDev(net); - bool isOnline = true; - - /* set the physdev online if necessary. It may already be up, - * in which case we shouldn't re-up it just in case that causes - * some sort of "blip" in the physdev's status. - */ - if (physdev && virNetDevGetOnline(physdev, &isOnline) < 0) - return -1; - if (!isOnline && virNetDevSetOnline(physdev, true) < 0) - return -1; - - /* macvtap devices share their MAC address with the guest - * domain, and if they are set online prior to the domain CPUs - * being started, the host may send out traffic from this - * device that could confuse other entities on the network (in - * particular, if this new domain is the destination of a - * migration, and the source domain is still running, another - * host may mistakenly direct traffic for the guest to the - * destination domain rather than source domain). To prevent - * this, we create the macvtap device with IFF_UP false - * (i.e. "offline") then wait to bring it online until just as - * we are starting the domain CPUs. - */ - if (virNetDevSetOnline(net->ifname, true) < 0) - return -1; - break; - } - - case VIR_DOMAIN_NET_TYPE_ETHERNET: - if (virNetDevIPInfoAddToDev(net->ifname, &net->hostIP) < 0) - return -1; - - break; - - case VIR_DOMAIN_NET_TYPE_USER: - case VIR_DOMAIN_NET_TYPE_VHOSTUSER: - case VIR_DOMAIN_NET_TYPE_SERVER: - case VIR_DOMAIN_NET_TYPE_CLIENT: - case VIR_DOMAIN_NET_TYPE_MCAST: - case VIR_DOMAIN_NET_TYPE_UDP: - case VIR_DOMAIN_NET_TYPE_INTERNAL: - case VIR_DOMAIN_NET_TYPE_HOSTDEV: - case VIR_DOMAIN_NET_TYPE_VDPA: - case VIR_DOMAIN_NET_TYPE_NULL: - case VIR_DOMAIN_NET_TYPE_VDS: - case VIR_DOMAIN_NET_TYPE_LAST: - /* these types all require no action */ - break; - } - - return 0; -} - -/** - * qemuInterfaceStartDevices: - * @def: domain definition - * - * Set all ifaces associated with this domain to the online state. - */ -int -qemuInterfaceStartDevices(virDomainDef *def) -{ - size_t i; - - for (i = 0; i < def->nnets; i++) { - if (qemuInterfaceStartDevice(def->nets[i]) < 0) - return -1; - } - return 0; -} - - -/** - * qemuInterfaceStopDevice: - * @net: net device to stop - * - * Based upon the type of device provided, perform the appropriate - * work to deactivate the device so that packets aren't forwarded to - * it from the rest of the network. - */ -int -qemuInterfaceStopDevice(virDomainNetDef *net) -{ - virDomainNetType actualType = virDomainNetGetActualType(net); - - switch (actualType) { - case VIR_DOMAIN_NET_TYPE_BRIDGE: - case VIR_DOMAIN_NET_TYPE_NETWORK: - if (virDomainNetGetActualBridgeMACTableManager(net) - == VIR_NETWORK_BRIDGE_MAC_TABLE_MANAGER_LIBVIRT) { - /* remove the FDB entries that were added during - * qemuInterfaceStartDevices() - */ - if (virNetDevBridgeFDBDel(&net->mac, net->ifname, - VIR_NETDEVBRIDGE_FDB_FLAG_MASTER | - VIR_NETDEVBRIDGE_FDB_FLAG_TEMP) < 0) - return -1; - } - break; - - case VIR_DOMAIN_NET_TYPE_DIRECT: { - const char *physdev = virDomainNetGetActualDirectDev(net); - - /* macvtap interfaces need to be marked !IFF_UP (ie "down") to - * prevent any host-generated traffic sent from this interface - * from putting bad info into the arp caches of other machines - * on this network. - */ - if (virNetDevSetOnline(net->ifname, false) < 0) - return -1; - - /* also mark the physdev down for passthrough macvtap, as the - * physdev has the same MAC address as the macvtap device. - */ - if (virDomainNetGetActualDirectMode(net) == - VIR_NETDEV_MACVLAN_MODE_PASSTHRU && - physdev && virNetDevSetOnline(physdev, false) < 0) - return -1; - break; - } - - case VIR_DOMAIN_NET_TYPE_ETHERNET: - case VIR_DOMAIN_NET_TYPE_USER: - case VIR_DOMAIN_NET_TYPE_VHOSTUSER: - case VIR_DOMAIN_NET_TYPE_SERVER: - case VIR_DOMAIN_NET_TYPE_CLIENT: - case VIR_DOMAIN_NET_TYPE_MCAST: - case VIR_DOMAIN_NET_TYPE_UDP: - case VIR_DOMAIN_NET_TYPE_INTERNAL: - case VIR_DOMAIN_NET_TYPE_HOSTDEV: - case VIR_DOMAIN_NET_TYPE_VDPA: - case VIR_DOMAIN_NET_TYPE_NULL: - case VIR_DOMAIN_NET_TYPE_VDS: - case VIR_DOMAIN_NET_TYPE_LAST: - /* these types all require no action */ - break; - } - - return 0; -} - -/** - * qemuInterfaceStopDevices: - * @def: domain definition - * - * Make all interfaces associated with this domain inaccessible from - * the rest of the network. - */ -int -qemuInterfaceStopDevices(virDomainDef *def) -{ - size_t i; - - for (i = 0; i < def->nnets; i++) { - if (qemuInterfaceStopDevice(def->nets[i]) < 0) - return -1; - } - return 0; -} - - -static bool -qemuInterfaceIsVnetCompatModel(const virDomainNetDef *net) -{ - return (virDomainNetIsVirtioModel(net) || - net->model == VIR_DOMAIN_NET_MODEL_E1000E || - net->model == VIR_DOMAIN_NET_MODEL_IGB || - net->model == VIR_DOMAIN_NET_MODEL_VMXNET3); -} - - /** * qemuInterfaceDirectConnect: * @def: the definition of the VM (needed by 802.1Qbh and audit) @@ -271,7 +67,7 @@ qemuInterfaceDirectConnect(virDomainDef *def, unsigned int macvlan_create_flags = VIR_NETDEV_MACVLAN_CREATE_WITH_TAP; qemuDomainNetworkPrivate *netpriv = QEMU_DOMAIN_NETWORK_PRIVATE(net); - if (qemuInterfaceIsVnetCompatModel(net)) + if (virDomainInterfaceIsVnetCompatModel(net)) macvlan_create_flags |= VIR_NETDEV_MACVLAN_VNET_HDR; if (virNetDevMacVLanCreateWithVPortProfile(net->ifname, @@ -409,133 +205,6 @@ qemuCreateInBridgePortWithHelper(virQEMUDriverConfig *cfg, return *tapfd < 0 ? -1 : 0; } - -/* qemuInterfaceEthernetConnect: - * @def: the definition of the VM - * @driver: qemu driver data - * @net: pointer to the VM's interface description - * @tapfd: array of file descriptor return value for the new device - * @tapfdsize: number of file descriptors in @tapfd - * - * Called *only* called if actualType is VIR_DOMAIN_NET_TYPE_ETHERNET - * (i.e. if the connection is made with a tap device) - */ -int -qemuInterfaceEthernetConnect(virDomainDef *def, - virQEMUDriver *driver, - virDomainNetDef *net, - int *tapfd, - size_t tapfdSize) -{ - virMacAddr tapmac; - int ret = -1; - unsigned int tap_create_flags = VIR_NETDEV_TAP_CREATE_IFUP; - bool template_ifname = false; - g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver); - const char *tunpath = "/dev/net/tun"; - const char *auditdev = tunpath; - - if (net->backend.tap) { - tunpath = net->backend.tap; - if (!driver->privileged) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("cannot use custom tap device in session mode")); - goto cleanup; - } - } - - if (qemuInterfaceIsVnetCompatModel(net)) - tap_create_flags |= VIR_NETDEV_TAP_CREATE_VNET_HDR; - - if (net->managed_tap == VIR_TRISTATE_BOOL_NO) { - if (!net->ifname) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("target dev must be supplied when managed='no'")); - goto cleanup; - } - if (virNetDevExists(net->ifname) != 1) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("target managed='no' but specified dev doesn't exist")); - goto cleanup; - } - - tap_create_flags |= VIR_NETDEV_TAP_CREATE_ALLOW_EXISTING; - - if (virNetDevMacVLanIsMacvtap(net->ifname)) { - auditdev = net->ifname; - if (virNetDevMacVLanTapOpen(net->ifname, tapfd, tapfdSize) < 0) - goto cleanup; - if (virNetDevMacVLanTapSetup(tapfd, tapfdSize, - qemuInterfaceIsVnetCompatModel(net)) < 0) { - goto cleanup; - } - } else { - if (virNetDevTapCreate(&net->ifname, tunpath, tapfd, tapfdSize, - tap_create_flags) < 0) - goto cleanup; - } - } else { - - if (!net->ifname) - template_ifname = true; - - if (virNetDevTapCreate(&net->ifname, tunpath, tapfd, tapfdSize, - tap_create_flags) < 0) { - goto cleanup; - } - - /* The tap device's MAC address cannot match the MAC address - * used by the guest. This results in "received packet on - * vnetX with own address as source address" error logs from - * the kernel. - */ - virMacAddrSet(&tapmac, &net->mac); - if (tapmac.addr[0] == 0xFE) - tapmac.addr[0] = 0xFA; - else - tapmac.addr[0] = 0xFE; - - if (virNetDevSetMAC(net->ifname, &tapmac) < 0) - goto cleanup; - - if (virNetDevSetOnline(net->ifname, true) < 0) - goto cleanup; - } - - if (net->script && - virNetDevRunEthernetScript(net->ifname, net->script) < 0) - goto cleanup; - - if (cfg->macFilter && - ebtablesAddForwardAllowIn(driver->ebtables, - net->ifname, - &net->mac) < 0) - goto cleanup; - - if (net->filter && - virDomainConfNWFilterInstantiate(def->name, def->uuid, net, false) < 0) { - goto cleanup; - } - - virDomainAuditNetDevice(def, net, auditdev, true); - - ret = 0; - - cleanup: - if (ret < 0) { - size_t i; - - virDomainAuditNetDevice(def, net, auditdev, false); - for (i = 0; i < tapfdSize && tapfd[i] >= 0; i++) - VIR_FORCE_CLOSE(tapfd[i]); - if (template_ifname) - VIR_FREE(net->ifname); - } - - return ret; -} - - /* qemuInterfaceBridgeConnect: * @def: the definition of the VM * @driver: qemu driver data @@ -578,7 +247,7 @@ qemuInterfaceBridgeConnect(virDomainDef *def, if (!net->ifname) template_ifname = true; - if (qemuInterfaceIsVnetCompatModel(net)) + if (virDomainInterfaceIsVnetCompatModel(net)) tap_create_flags |= VIR_NETDEV_TAP_CREATE_VNET_HDR; if (driver->privileged) { @@ -598,7 +267,7 @@ qemuInterfaceBridgeConnect(virDomainDef *def, * is attaching to, so we need to turn off learning and * unicast_flood on the device to prevent the kernel from * adding any FDB entries for it. We will add an fdb - * entry ourselves (during qemuInterfaceStartDevices(), + * entry ourselves (during virDomainInterfaceStartDevices(), * using the MAC address from the interface config. */ if (virNetDevBridgePortSetLearning(brname, net->ifname, false) < 0) diff --git a/src/qemu/qemu_interface.h b/src/qemu/qemu_interface.h index 6eed3e6bd7..47d7ec03fd 100644 --- a/src/qemu/qemu_interface.h +++ b/src/qemu/qemu_interface.h @@ -25,11 +25,6 @@ #include "qemu_domain.h" #include "qemu_slirp.h" -int qemuInterfaceStartDevice(virDomainNetDef *net); -int qemuInterfaceStartDevices(virDomainDef *def); -int qemuInterfaceStopDevice(virDomainNetDef *net); -int qemuInterfaceStopDevices(virDomainDef *def); - int qemuInterfaceDirectConnect(virDomainDef *def, virQEMUDriver *driver, virDomainNetDef *net, @@ -37,12 +32,6 @@ int qemuInterfaceDirectConnect(virDomainDef *def, size_t tapfdSize, virNetDevVPortProfileOp vmop); -int qemuInterfaceEthernetConnect(virDomainDef *def, - virQEMUDriver *driver, - virDomainNetDef *net, - int *tapfd, - size_t tapfdSize); - int qemuInterfaceBridgeConnect(virDomainDef *def, virQEMUDriver *driver, virDomainNetDef *net, diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 1ef032dbd2..1626f368bd 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -74,6 +74,7 @@ #include "virhostcpu.h" #include "domain_audit.h" #include "domain_cgroup.h" +#include "domain_interface.h" #include "domain_nwfilter.h" #include "domain_postparse.h" #include "domain_validate.h" @@ -3121,7 +3122,7 @@ qemuProcessStartCPUs(virQEMUDriver *driver, virDomainObj *vm, g_autoptr(virQEMUDriverConfig) cfg = virQEMUDriverGetConfig(driver); /* Bring up netdevs before starting CPUs */ - if (qemuInterfaceStartDevices(vm->def) < 0) + if (virDomainInterfaceStartDevices(vm->def) < 0) return -1; VIR_DEBUG("Using lock state '%s'", NULLSTR(priv->lockState)); @@ -3184,7 +3185,7 @@ int qemuProcessStopCPUs(virQEMUDriver *driver, goto cleanup; /* de-activate netdevs after stopping CPUs */ - ignore_value(qemuInterfaceStopDevices(vm->def)); + ignore_value(virDomainInterfaceStopDevices(vm->def)); if (vm->job->current) ignore_value(virTimeMillisNow(&vm->job->current->stopped)); -- 2.41.0