From b3bd5d6c5a9f8bddb69ac47723421dd549d6052c Mon Sep 17 00:00:00 2001 From: Laine Stump Date: Thu, 30 Aug 2012 05:14:32 -0400 Subject: [PATCH] network: get vlan info for Open vSwitch interfaces from proper source This bug was revealed by the crash described in https://bugzilla.redhat.com/show_bug.cgi?id=852383 The vlan info pointer sent to virNetDevOpenvswitchAddPort should never be non-NULL unless there is at least one tag. The factthat such a vlan info pointer was receveid pointed out that a caller was passing the wrong pointer. Instead of sending &net->vlan, the result of virDomainNetGetActualVlan(net) should be sent - that function will look for vlan info in net->data.network.actual->vlan, and in cany case return NULL instead of a pointer if the vlan info it finds has no tags. Aside from causing the crash, sending a hardcoded &net->vlan has the effect of ignoring vlan info from a or config. --- src/lxc/lxc_process.c | 2 +- src/qemu/qemu_command.c | 2 +- src/uml/uml_conf.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c index cdbf14b195..bcd59cb098 100644 --- a/src/lxc/lxc_process.c +++ b/src/lxc/lxc_process.c @@ -325,7 +325,7 @@ static int virLXCProcessSetupInterfaceBridged(virConnectPtr conn, if (vport && vport->virtPortType == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH) ret = virNetDevOpenvswitchAddPort(brname, parentVeth, &net->mac, - vm->uuid, vport, &net->vlan); + vm->uuid, vport, virDomainNetGetActualVlan(net)); else ret = virNetDevBridgeAddPort(brname, parentVeth); if (ret < 0) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 8c32a4dcdc..25f2451f9f 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -258,7 +258,7 @@ qemuNetworkIfaceConnect(virDomainDefPtr def, err = virNetDevTapCreateInBridgePort(brname, &net->ifname, &net->mac, def->uuid, &tapfd, virDomainNetGetActualVirtPortProfile(net), - &net->vlan, + virDomainNetGetActualVlan(net), tap_create_flags); virDomainAuditNetDevice(def, net, "/dev/net/tun", tapfd >= 0); if (err < 0) { diff --git a/src/uml/uml_conf.c b/src/uml/uml_conf.c index 5461b42a8e..410f3e2690 100644 --- a/src/uml/uml_conf.c +++ b/src/uml/uml_conf.c @@ -141,7 +141,7 @@ umlConnectTapDevice(virConnectPtr conn, if (virNetDevTapCreateInBridgePort(bridge, &net->ifname, &net->mac, vm->uuid, NULL, virDomainNetGetActualVirtPortProfile(net), - &net->vlan, + virDomainNetGetActualVlan(net), VIR_NETDEV_TAP_CREATE_IFUP) < 0) { if (template_ifname) VIR_FREE(net->ifname); -- GitLab