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[libvirt] [PATCH 0/3] conf: reject '/' in object names
by Cole Robinson 27 Apr '16

27 Apr '16

An embedded '/' in object names doesn't really work for any of our stateful drivers, so let's explicitly reject it. https://bugzilla.redhat.com/show_bug.cgi?id=639923 https://bugzilla.redhat.com/show_bug.cgi?id=787604 Cole Robinson (3): conf: domain: reject name containing '/' conf: network: reject name containing '/' conf: storage: pool: reject name containing '/' src/conf/domain_conf.c | 8 ++++++++ src/conf/domain_conf.h | 1 + src/conf/network_conf.c | 6 ++++++ src/conf/storage_conf.c | 6 ++++++ src/openvz/openvz_driver.c | 5 +++-- src/phyp/phyp_driver.c | 1 + src/vbox/vbox_common.c | 1 + src/vmx/vmx.c | 3 ++- src/xenapi/xenapi_driver.c | 1 + tests/genericxml2xmlindata/generic-name-slash-fail.xml | 17 +++++++++++++++++ tests/genericxml2xmltest.c | 3 +++ 11 files changed, 49 insertions(+), 3 deletions(-) create mode 100644 tests/genericxml2xmlindata/generic-name-slash-fail.xml -- 2.7.4

2 6

[libvirt] [PATCH] conf: format runtime DAC seclabel, unless MIGRATABLE
by Cole Robinson 27 Apr '16

27 Apr '16

We historically format runtime seclabel selinux/apparmor values, however we skip formatting runtime DAC values. This was added in commit 990e46c4542349f838e001d30638872576c389e9 Author: Marcelo Cerri <mhcerri(a)linux.vnet.ibm.com> Date: Fri Aug 31 13:40:41 2012 +0200 conf: Avoid formatting auto-generated DAC labels to maintain migration compatibility with libvirt < 0.10.0. However the formatting was skipped unconditionally. Instead only skip formatting in the VIR_DOMAIN_DEF_FORMAT_MIGRATABLE case. https://bugzilla.redhat.com/show_bug.cgi?id=1215833 --- src/conf/domain_conf.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index db567f5..0557912 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -18741,7 +18741,8 @@ virDomainEventActionDefFormat(virBufferPtr buf, static void virSecurityLabelDefFormat(virBufferPtr buf, - virSecurityLabelDefPtr def) + virSecurityLabelDefPtr def, + unsigned int flags) { const char *sectype = virDomainSeclabelTypeToString(def->type); @@ -18751,11 +18752,13 @@ virSecurityLabelDefFormat(virBufferPtr buf, if (def->type == VIR_DOMAIN_SECLABEL_DEFAULT) return; - /* To avoid backward compatibility issues, suppress DAC and 'none' labels - * that are automatically generated. + /* libvirt versions prior to 0.10.0 support just a single seclabel element + * in the XML, and that would typically be filled with type=selinux. + * Don't format it in the MIGRATABLE case, for backwards compatibility */ if ((STREQ_NULLABLE(def->model, "dac") || - STREQ_NULLABLE(def->model, "none")) && def->implicit) + STREQ_NULLABLE(def->model, "none")) && def->implicit && + (flags & VIR_DOMAIN_DEF_FORMAT_MIGRATABLE)) return; virBufferAsprintf(buf, "<seclabel type='%s'", @@ -22886,7 +22889,7 @@ virDomainDefFormatInternal(virDomainDefPtr def, virBufferAddLit(buf, "</devices>\n"); for (n = 0; n < def->nseclabels; n++) - virSecurityLabelDefFormat(buf, def->seclabels[n]); + virSecurityLabelDefFormat(buf, def->seclabels[n], flags); if (def->namespaceData && def->ns.format) { if ((def->ns.format)(buf, def->namespaceData) < 0) -- 2.7.3

2 2

[libvirt] [PATCHv2] conf: log error when incorrect PCI root controller is added to domain
by Laine Stump 27 Apr '16

27 Apr '16

libvirt may automatically add a pci-root or pcie-root controller to a domain, depending on the arch/machinetype, and it hopefully always makes the right decision about which to add (since in all cases these controllers are an implicit part of the virtual machine). But it's always possible that someone will create a config that explicitly supplies the wrong type of PCI controller for the selected machinetype. In the past that would lead to an error later when libvirt was trying to assign addresses to other devices, for example: XML error: PCI bus is not compatible with the device at 0000:00:02.0. Device requires a PCI Express slot, which is not provided by bus 0000:00 (that's the error message that appears if you replace the pcie-root controller in a Q35 domain with a pci-root controller). This patch adds a check at the same place that the implicit controllers are added (to ensure that the same logic is used to check which type of pci root is correct). If a pci controller with index='0' is already present, we verify that it is of the model that we would have otherwise added automatically; if not, an error is logged: The PCI controller with index='0' must be " model='pcie-root' for this machine type, " but model='pci-root' was found instead. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1004602 --- Change from V1 - add test cases per Cole's suggestion (one for 440fx, one for Q35) src/qemu/qemu_domain.c | 47 ++++++++++++++++------ .../qemuxml2argv-440fx-wrong-root.xml | 28 +++++++++++++ .../qemuxml2argv-q35-wrong-root.xml | 27 +++++++++++++ tests/qemuxml2argvtest.c | 9 +++++ 4 files changed, 99 insertions(+), 12 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-440fx-wrong-root.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 51d4830..86b7d13 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -1437,6 +1437,7 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def, { bool addDefaultUSB = true; int usbModel = -1; /* "default for machinetype" */ + int pciRoot; /* index within def->controllers */ bool addImplicitSATA = false; bool addPCIRoot = false; bool addPCIeRoot = false; @@ -1538,14 +1539,26 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def, def, VIR_DOMAIN_CONTROLLER_TYPE_SATA, 0, -1) < 0) goto cleanup; + pciRoot = virDomainControllerFind(def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 0); + /* NB: any machine that sets addPCIRoot to true must also return * true from the function qemuDomainSupportsPCI(). */ - if (addPCIRoot && - virDomainDefMaybeAddController( - def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 0, - VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT) < 0) - goto cleanup; + if (addPCIRoot) { + if (pciRoot >= 0) { + if (def->controllers[pciRoot]->model != VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT) { + virReportError(VIR_ERR_XML_ERROR, + _("The PCI controller with index='0' must be " + "model='pci-root' for this machine type, " + "but model='%s' was found instead"), + virDomainControllerModelPCITypeToString(def->controllers[pciRoot]->model)); + goto cleanup; + } + } else if (!virDomainDefAddController(def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 0, + VIR_DOMAIN_CONTROLLER_MODEL_PCI_ROOT)) { + goto cleanup; + } + } /* When a machine has a pcie-root, make sure that there is always * a dmi-to-pci-bridge controller added as bus 1, and a pci-bridge @@ -1555,15 +1568,25 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def, * true from the function qemuDomainSupportsPCI(). */ if (addPCIeRoot) { + if (pciRoot >= 0) { + if (def->controllers[pciRoot]->model != VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) { + virReportError(VIR_ERR_XML_ERROR, + _("The PCI controller with index='0' must be " + "model='pcie-root' for this machine type, " + "but model='%s' was found instead"), + virDomainControllerModelPCITypeToString(def->controllers[pciRoot]->model)); + goto cleanup; + } + } else if (!virDomainDefAddController(def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 0, + VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT)) { + goto cleanup; + } if (virDomainDefMaybeAddController( - def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 0, - VIR_DOMAIN_CONTROLLER_MODEL_PCIE_ROOT) < 0 || - virDomainDefMaybeAddController( - def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 1, - VIR_DOMAIN_CONTROLLER_MODEL_DMI_TO_PCI_BRIDGE) < 0 || + def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 1, + VIR_DOMAIN_CONTROLLER_MODEL_DMI_TO_PCI_BRIDGE) < 0 || virDomainDefMaybeAddController( - def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 2, - VIR_DOMAIN_CONTROLLER_MODEL_PCI_BRIDGE) < 0) { + def, VIR_DOMAIN_CONTROLLER_TYPE_PCI, 2, + VIR_DOMAIN_CONTROLLER_MODEL_PCI_BRIDGE) < 0) { goto cleanup; } } diff --git a/tests/qemuxml2argvdata/qemuxml2argv-440fx-wrong-root.xml b/tests/qemuxml2argvdata/qemuxml2argv-440fx-wrong-root.xml new file mode 100644 index 0000000..93fef08 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-440fx-wrong-root.xml @@ -0,0 +1,28 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <title>A description of the test machine.</title> + <description> + A test of qemu's minimal configuration. + This test also tests the description and title elements. + </description> + <memory unit='KiB'>219100</memory> + <currentMemory unit='KiB'>219100</currentMemory> + <os> + <type arch='i686' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-kvm</emulator> + <controller type='usb' index='0'/> + <controller type='ide' index='0'/> + <controller type='pci' index='0' model='pcie-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='virtio'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml b/tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml new file mode 100644 index 0000000..836de52 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-q35-wrong-root.xml @@ -0,0 +1,27 @@ +<domain type='qemu'> + <name>q35-test</name> + <uuid>11dbdcdd-4c3b-482b-8903-9bdb8c0a2774</uuid> + <memory unit='KiB'>2097152</memory> + <currentMemory unit='KiB'>2097152</currentMemory> + <vcpu placement='static' cpuset='0-1'>2</vcpu> + <os> + <type arch='x86_64' machine='q35'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-kvm</emulator> + <controller type='pci' index='0' model='pci-root'/> + <controller type='pci' index='1' model='dmi-to-pci-bridge'> + <model name='i82801b11-bridge'/> + </controller> + <controller type='pci' index='2' model='pci-bridge'> + <model name='pci-bridge'/> + <target chassisNr='56'/> + </controller> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 8842b2f..b43f03c 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1536,6 +1536,15 @@ mymain(void) QEMU_CAPS_DEVICE_VIDEO_PRIMARY, QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL); + DO_TEST_PARSE_ERROR("q35-wrong-root", + QEMU_CAPS_DEVICE_PCI_BRIDGE, + QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE, + QEMU_CAPS_ICH9_AHCI, + QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_ICH9_USB_EHCI1, + QEMU_CAPS_DEVICE_VIDEO_PRIMARY, + QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL); + DO_TEST_PARSE_ERROR("440fx-wrong-root", NONE); + DO_TEST_FAILURE("pcie-root-port-too-many", QEMU_CAPS_DEVICE_PCI_BRIDGE, QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE, -- 2.5.5

2 2

[libvirt] [PATCH v2] configure: Remove build time checks for (ip|ip6|eb)tables
by Cole Robinson 27 Apr '16

27 Apr '16

And the 'ip' tool. There isn't much benefit to checking this at configure time when we have infrastructure nowadays for looking up binaries in the PATH --- v2: Keep the virFileIsExecutable check configure.ac | 12 ------ src/util/virfirewall.c | 18 +++++---- src/util/virnetdev.c | 6 +-- tests/virfirewalltest.c | 98 ++++++++++++++++++++++++------------------------- 4 files changed, 62 insertions(+), 72 deletions(-) diff --git a/configure.ac b/configure.ac index de5f430..35ae16e 100644 --- a/configure.ac +++ b/configure.ac @@ -694,18 +694,6 @@ if test x"$with_rhel5_api" = x"yes"; then AC_DEFINE([WITH_RHEL5_API], [1], [whether building for the RHEL-5 API]) fi -AC_PATH_PROG([IP_PATH], [ip], /sbin/ip, [/usr/sbin:$PATH]) -AC_DEFINE_UNQUOTED([IP_PATH], "$IP_PATH", [path to ip binary]) - -AC_PATH_PROG([IPTABLES_PATH], [iptables], /sbin/iptables, [/usr/sbin:$PATH]) -AC_DEFINE_UNQUOTED([IPTABLES_PATH], "$IPTABLES_PATH", [path to iptables binary]) - -AC_PATH_PROG([IP6TABLES_PATH], [ip6tables], /sbin/ip6tables, [/usr/sbin:$PATH]) -AC_DEFINE_UNQUOTED([IP6TABLES_PATH], "$IP6TABLES_PATH", [path to ip6tables binary]) - -AC_PATH_PROG([EBTABLES_PATH], [ebtables], /sbin/ebtables, [/usr/sbin:$PATH]) -AC_DEFINE_UNQUOTED([EBTABLES_PATH], "$EBTABLES_PATH", [path to ebtables binary]) - dnl dnl Checks for the OpenVZ driver diff --git a/src/util/virfirewall.c b/src/util/virfirewall.c index f26fd86..0c8e3bf 100644 --- a/src/util/virfirewall.c +++ b/src/util/virfirewall.c @@ -47,9 +47,9 @@ typedef virFirewallGroup *virFirewallGroupPtr; VIR_ENUM_DECL(virFirewallLayerCommand) VIR_ENUM_IMPL(virFirewallLayerCommand, VIR_FIREWALL_LAYER_LAST, - EBTABLES_PATH, - IPTABLES_PATH, - IP6TABLES_PATH); + "ebtables", + "iptables", + "ip6tables"); VIR_ENUM_DECL(virFirewallLayerFirewallD) VIR_ENUM_IMPL(virFirewallLayerFirewallD, VIR_FIREWALL_LAYER_LAST, @@ -134,13 +134,13 @@ static void virFirewallCheckUpdateLocking(void) { const char *iptablesArgs[] = { - IPTABLES_PATH, "-w", "-L", "-n", NULL, + "iptables", "-w", "-L", "-n", NULL, }; const char *ip6tablesArgs[] = { - IP6TABLES_PATH, "-w", "-L", "-n", NULL, + "ip6tables", "-w", "-L", "-n", NULL, }; const char *ebtablesArgs[] = { - EBTABLES_PATH, "--concurrent", "-L", NULL, + "ebtables", "--concurrent", "-L", NULL, }; if (lockOverride) return; @@ -182,17 +182,19 @@ virFirewallValidateBackend(virFirewallBackend backend) if (backend == VIR_FIREWALL_BACKEND_DIRECT) { const char *commands[] = { - IPTABLES_PATH, IP6TABLES_PATH, EBTABLES_PATH + "iptables", "ip6tables", "ebtables" }; size_t i; for (i = 0; i < ARRAY_CARDINALITY(commands); i++) { - if (!virFileIsExecutable(commands[i])) { + char *path = virFindFileInPath(commands[i]); + if (!path || !virFileIsExecutable(path)) { virReportSystemError(errno, _("direct firewall backend requested, but %s is not available"), commands[i]); return -1; } + VIR_FREE(path); } VIR_DEBUG("found iptables/ip6tables/ebtables, using direct backend"); } diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c index bb17b84..75e45fd 100644 --- a/src/util/virnetdev.c +++ b/src/util/virnetdev.c @@ -1469,7 +1469,7 @@ int virNetDevSetIPAddress(const char *ifname, virCommandAddArgList(cmd, "broadcast", bcaststr, NULL); virCommandAddArg(cmd, "alias"); # else - cmd = virCommandNew(IP_PATH); + cmd = virCommandNew("ip"); virCommandAddArgList(cmd, "addr", "add", NULL); virCommandAddArgFormat(cmd, "%s/%u", addrstr, prefix); if (peerstr) @@ -1506,7 +1506,7 @@ virNetDevAddRoute(const char *ifname, goto cleanup; if (!(gatewaystr = virSocketAddrFormat(gateway))) goto cleanup; - cmd = virCommandNew(IP_PATH); + cmd = virCommandNew("ip"); virCommandAddArgList(cmd, "route", "add", NULL); virCommandAddArgFormat(cmd, "%s/%u", addrstr, prefix); virCommandAddArgList(cmd, "via", gatewaystr, "dev", ifname, @@ -1544,7 +1544,7 @@ int virNetDevClearIPAddress(const char *ifname, virCommandAddArgFormat(cmd, "%s/%u", addrstr, prefix); virCommandAddArg(cmd, "-alias"); # else - cmd = virCommandNew(IP_PATH); + cmd = virCommandNew("ip"); virCommandAddArgList(cmd, "addr", "del", NULL); virCommandAddArgFormat(cmd, "%s/%u", addrstr, prefix); virCommandAddArgList(cmd, "dev", ifname, NULL); diff --git a/tests/virfirewalltest.c b/tests/virfirewalltest.c index f1f29c6..976e883 100644 --- a/tests/virfirewalltest.c +++ b/tests/virfirewalltest.c @@ -128,11 +128,11 @@ VIR_MOCK_WRAP_RET_ARGS(dbus_connection_send_with_reply_and_block, if (fwBuf) { if (STREQ(type, "ipv4")) - virBufferAddLit(fwBuf, IPTABLES_PATH); + virBufferAddLit(fwBuf, "iptables"); else if (STREQ(type, "ipv4")) - virBufferAddLit(fwBuf, IP6TABLES_PATH); + virBufferAddLit(fwBuf, "ip6tables"); else - virBufferAddLit(fwBuf, EBTABLES_PATH); + virBufferAddLit(fwBuf, "ebtables"); } for (i = 0; i < nargs; i++) { if (fwBuf) { @@ -204,8 +204,8 @@ testFirewallSingleGroup(const void *opaque) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host '!192.168.122.1' --jump REJECT\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host '!192.168.122.1' --jump REJECT\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -263,8 +263,8 @@ testFirewallRemoveRule(const void *opaque) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host '!192.168.122.1' --jump REJECT\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host '!192.168.122.1' --jump REJECT\n"; const struct testFirewallData *data = opaque; virFirewallRulePtr fwrule; @@ -329,10 +329,10 @@ testFirewallManyGroups(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host '!192.168.122.1' --jump REJECT\n" - IPTABLES_PATH " -A OUTPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A OUTPUT --jump DROP\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host '!192.168.122.1' --jump REJECT\n" + "iptables -A OUTPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A OUTPUT --jump DROP\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -423,10 +423,10 @@ testFirewallIgnoreFailGroup(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -A OUTPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A OUTPUT --jump DROP\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -A OUTPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A OUTPUT --jump DROP\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -498,10 +498,10 @@ testFirewallIgnoreFailRule(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -A OUTPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A OUTPUT --jump DROP\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -A OUTPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A OUTPUT --jump DROP\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -572,8 +572,8 @@ testFirewallNoRollback(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.255 --jump REJECT\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host 192.168.122.255 --jump REJECT\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -642,11 +642,11 @@ testFirewallSingleRollback(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -D INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host '!192.168.122.1' --jump REJECT\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -D INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -D INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -D INPUT --source-host '!192.168.122.1' --jump REJECT\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -732,10 +732,10 @@ testFirewallManyRollback(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host '!192.168.122.1' --jump REJECT\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -D INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -D INPUT --source-host '!192.168.122.1' --jump REJECT\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -825,14 +825,14 @@ testFirewallChainedRollback(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.127 --jump REJECT\n" - IPTABLES_PATH " -A INPUT --source-host '!192.168.122.1' --jump REJECT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host 192.168.122.127 --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host '!192.168.122.1' --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host 192.168.122.255 --jump REJECT\n" - IPTABLES_PATH " -D INPUT --source-host '!192.168.122.1' --jump REJECT\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host 192.168.122.127 --jump REJECT\n" + "iptables -A INPUT --source-host '!192.168.122.1' --jump REJECT\n" + "iptables -A INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -D INPUT --source-host 192.168.122.127 --jump REJECT\n" + "iptables -D INPUT --source-host '!192.168.122.1' --jump REJECT\n" + "iptables -D INPUT --source-host 192.168.122.255 --jump REJECT\n" + "iptables -D INPUT --source-host '!192.168.122.1' --jump REJECT\n"; const struct testFirewallData *data = opaque; fwDisabled = data->fwDisabled; @@ -976,11 +976,11 @@ testFirewallQueryHook(const char *const*args, int *status, void *opaque ATTRIBUTE_UNUSED) { - if (STREQ(args[0], IPTABLES_PATH) && + if (STREQ(args[0], "iptables") && STREQ(args[1], "-L")) { if (VIR_STRDUP(*output, TEST_FILTER_TABLE_LIST) < 0) *status = 127; - } else if (STREQ(args[0], IPTABLES_PATH) && + } else if (STREQ(args[0], "iptables") && STREQ(args[1], "-t") && STREQ(args[2], "nat") && STREQ(args[3], "-L")) { @@ -1026,15 +1026,15 @@ testFirewallQuery(const void *opaque ATTRIBUTE_UNUSED) int ret = -1; const char *actual = NULL; const char *expected = - IPTABLES_PATH " -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.127 --jump REJECT\n" - IPTABLES_PATH " -L\n" - IPTABLES_PATH " -t nat -L\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.130 --jump REJECT\n" - IPTABLES_PATH " -A INPUT --source-host '!192.168.122.129' --jump REJECT\n" - IPTABLES_PATH " -A INPUT --source-host '!192.168.122.129' --jump REJECT\n" - IPTABLES_PATH " -A INPUT --source-host 192.168.122.128 --jump REJECT\n" - IPTABLES_PATH " -A INPUT --source-host '!192.168.122.1' --jump REJECT\n"; + "iptables -A INPUT --source-host 192.168.122.1 --jump ACCEPT\n" + "iptables -A INPUT --source-host 192.168.122.127 --jump REJECT\n" + "iptables -L\n" + "iptables -t nat -L\n" + "iptables -A INPUT --source-host 192.168.122.130 --jump REJECT\n" + "iptables -A INPUT --source-host '!192.168.122.129' --jump REJECT\n" + "iptables -A INPUT --source-host '!192.168.122.129' --jump REJECT\n" + "iptables -A INPUT --source-host 192.168.122.128 --jump REJECT\n" + "iptables -A INPUT --source-host '!192.168.122.1' --jump REJECT\n"; const struct testFirewallData *data = opaque; expectedLineNum = 0; -- 2.7.3

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[libvirt] [PATCH] qemu: conf: Run through the parser even without config file
by Peter Krempa 27 Apr '16

27 Apr '16

The parser sets a few defaults if the are not present in the config. We should run that even when the file is missing. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1325075 --- src/qemu/qemu_conf.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 77ef4fe..0bd9f06 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -477,12 +477,11 @@ int virQEMUDriverConfigLoadFile(virQEMUDriverConfigPtr cfg, */ if (access(filename, R_OK) == -1) { VIR_INFO("Could not read qemu config file %s", filename); - return 0; + } else { + if (!(conf = virConfReadFile(filename, 0))) + goto cleanup; } - if (!(conf = virConfReadFile(filename, 0))) - goto cleanup; - #define CHECK_TYPE(name, typ) \ if (p && p->type != (typ)) { \ virReportError(VIR_ERR_INTERNAL_ERROR, \ -- 2.8.1

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[libvirt] [PATCH 0/2] Fix migrations with automatic vnc sockets
by Martin Kletzander 27 Apr '16

27 Apr '16

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1326270 Martin Kletzander (2): qemu: Unref cfg in qemuDomainDefPostParse qemu: Regenerate VNC socket paths src/qemu/qemu_domain.c | 22 +++++++++++- .../qemuxml2argv-graphics-vnc-autosocket.args | 22 ++++++++++++ .../qemuxml2argv-graphics-vnc-autosocket.xml | 34 +++++++++++++++++++ .../qemuxml2xmlout-graphics-vnc-autosocket.xml | 39 ++++++++++++++++++++++ tests/qemuxml2xmltest.c | 7 ++++ 5 files changed, 123 insertions(+), 1 deletion(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-graphics-vnc-autosocket.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-graphics-vnc-autosocket.xml -- 2.8.1

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[libvirt] [PATCH 0/2] qemu: Be able to auto dump core of a domain with long name
by Martin Kletzander 27 Apr '16

27 Apr '16

Yet another fix for https://bugzilla.redhat.com/show_bug.cgi?id=1289363 Martin Kletzander (2): Unify domain name shortening Shorten domain name for automatic coredump src/conf/domain_conf.c | 20 ++++++++++++++++++++ src/conf/domain_conf.h | 2 ++ src/libvirt_private.syms | 1 + src/qemu/qemu_domain.c | 24 ++++++++---------------- src/qemu/qemu_driver.c | 4 +++- 5 files changed, 34 insertions(+), 17 deletions(-) -- 2.8.1

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[libvirt] interface "peer address" patches are broken
by Laine Stump 27 Apr '16

27 Apr '16

I haven't had the time to fix it yet, but wanted to point out that the patches that are supposed to support setting the peer address of tap/macvlan devices do not work. The problem is that the peer attribute isn't being included when the XML for a a domain interface is being formatted. I also sent the following message last week as a followup to the patch series; possibly it wasn't noticed for that reason:. I'll make a patch to fix the formatting when I can so that I can test my theory about address vs. peer on lxc vs qemu. But if it's fixed by someone else in the meantime, all the better :-) On 04/20/2016 12:36 PM, Laine Stump wrote: > Something I've found myself worrying about lately while driving in the > car or nodding off to sleep - are the "address" and "peer" attributes > effectively used in the same way for all network connection types and > both hypervisors? I think the answer may be "no", and if so we need to > fix that before they go out in a release. > > In particular, when an lxc domain's interface has: > > <ip address='192.168.128.1'/> > > That is the IP address seen by the guest, not the host. So I would > assume that if an LXC domain had: > > > <ip address='192.168.128.1' peer='192.168.128.2'/> > > that 192.168.128.1 would still be the IP address see by the guest, and > 192.168.128.2 would be the IP address on the host side; and it should > be the same for qemu. > > From what I can see of the code, though, on a qemu domain, the IP > address is set for the tap device's own IP, meaning that it would show > up on the *host* side, while the peer address would be what the host > expects to be at the other end of the tap device (i.e. the guest > side), so the two attributes are used for the *opposite* end of the > PTP link in lxc vs. qemu. > > I think that, instead, the "address" attribute should *always* be the > IP address that is seen/used by the guest, and the "peer" attribute > should be the IP address that is seen/used by the host. (perhaps > "peer" could be replaced with some other name, like "host" or > "hostAddress" to avoid confusion? (don't like either of those > alternatives, but I don't really like peer either)). > > Aside from that, I can see that these patches have been pushed in the > code that I'm running, and I've been trying to add "peer='blah'" to > interface IP addresses on my test machine, but it's just removed from > the config. Have you tested what got pushed? Has something gone wrong? > > Since there hasn't been a release with these patches included yet, > there is still time to fix it at least to be consistent (assuming that > my suspicions are correct; I've been unable to test it myself for the > reason above).

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[libvirt] [PATCH 0/9] Slightly rework our streams
by Michal Privoznik 26 Apr '16

26 Apr '16

This is not the big patch set that enables sparse streams. Not just yet. I'm merely sending first few patches that prepare the environment for that. These can, however, go in independent of sparse streams. Michal Privoznik (9): daemonClientStream: Use unsigned int to store stream @serial daemon stream: Prefer bool over unsigned int var:1 daemon stream: Convert @tx in daemonClientStream to bool daemon stream: Remove useless empty lines from header file virNetClientCallDispatchStream: Update comment daemonStreamHandleRead: Rework to follow our coding pattern Revert "rpc: Fix slow volume download (virsh vol-download)" virnetclientstream: Process stream messages later virStream{Recv,Send}All: Increase client buffer daemon/stream.c | 116 +++++++++++++++---------------- daemon/stream.h | 2 - src/libvirt-stream.c | 5 +- src/rpc/virnetclient.c | 6 +- src/rpc/virnetclientstream.c | 158 +++++++++++++++--------------------------- src/rpc/virnetserverprogram.c | 12 ++-- src/rpc/virnetserverprogram.h | 4 +- 7 files changed, 129 insertions(+), 174 deletions(-) -- 2.7.3

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[libvirt] [RFC] live migration of VMs with internal snapshots
by Maxim Nestratov 26 Apr '16

26 Apr '16

Hi, As far as I understand, currently there is no way to live migrate qemu VMs that have internal snapshots, because live migration works via qemu drive mirroring, which in turns mirrors only shallow block layer, effectively losing existing embedded snapshots. The problem could be fixed if we created an external delta for all disks with internal snapshots, live migrate such VMs and then auto merge them back into original images. That said, I would like to know very much your opinion on the matter and would also like to know if this approach is affordable. If so, I or one of my colleagues will send a pathset to fix this, otherwise what solution for this problem you will recommend? Thanks, Maxim

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