December 2016 - Devel - libvirt List Archives

[Libvir] Hang with virt-install graphic=no on FC 6 6.93/F7 RC2
by libvirtuser 23 Dec '25

23 Dec '25

I had this problem and another user confirmed the same behavior on his machine: http://pastie.caboo.se/65417 Haven't tried it with *2925.10* yet. Also, is there a way to get more verbose info about what calls are causing the "configuration file syntax error" errors? Thanks. virt-install How large would you like the disk () to be (in gigabytes)? 4 ERROR: Must provide a file, not a directory for the disk What would you like to use as the disk (path)? /xen/images/x6.img Would you like to enable graphics support? (yes or no) no What is the install location? http://mirror.anl.gov/pub/fedora-linux-core/test/6.93/Fedora/i386/os/ Starting install... libvir: Xen Daemon error : GET operation failed: libvir: error : configuration file syntax error: expecting a name libvir: error : configuration file syntax error: expecting a name libvir: error : configuration file syntax error: expecting a name Retrieving Fedora... 276 kB 00:01 Retrieving vmlinuz... 100% |=========================| 2.1 MB 00:16 Retrieving initrd.img... 100% |=========================| 5.4 MB 00:28 libvir: Xen Daemon error : GET operation failed: libvir: error : configuration file syntax error: expecting a name libvir: error : configuration file syntax error: expecting a name libvir: error : configuration file syntax error: expecting a name Creating domain... 0 B 00:06 Linux version 2.6.20-2925.5.fc7xen (brewbuilder(a)ls20-bc1-14.build.redhat.com) (gcc version 4.1.2 20070317 (Red Hat 4.1.2-5)) #1 SMP Thu Mar 22 13:51:38 EDT 2007 BIOS-provided physical RAM map: sanitize start sanitize bail 0 copy_e820_map() start: 0000000000000000 size: 0000000020800000 end: 0000000020800000 type: 1 Xen: 0000000000000000 - 0000000020800000 (usable) 0MB HIGHMEM available. 520MB LOWMEM available. Using x86 segment limits to approximate NX protection Zone PFN ranges: DMA 0 -> 133120 Normal 133120 -> 133120 HighMem 133120 -> 133120 early_node_map[1] active PFN ranges 0: 0 -> 133120 ACPI in unprivileged domain disabled Built 1 zonelists. Total pages: 132080 Kernel command line: method=http://mirror.anl.gov/pub/fedora-linux-core/test/6.93/Fedora/i386/os/ Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Initializing CPU#0 CPU 0 irqstacks, hard=c135f000 soft=c133f000 PID hash table entries: 4096 (order: 12, 16384 bytes) Xen reported: 1694.994 MHz processor. Console: colour dummy device 80x25 Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar ... MAX_LOCKDEP_SUBCLASSES: 8 ... MAX_LOCK_DEPTH: 30 ... MAX_LOCKDEP_KEYS: 2048 ... CLASSHASH_SIZE: 1024 ... MAX_LOCKDEP_ENTRIES: 8192 ... MAX_LOCKDEP_CHAINS: 16384 ... CHAINHASH_SIZE: 8192 memory used by lock dependency info: 1064 kB per task-struct memory footprint: 1200 bytes Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) Software IO TLB disabled vmalloc area: e1000000-f4ffe000, maxmem 2d7fe000 Memory: 503936k/532480k available (2030k kernel code, 19948k reserved, 1079k data, 180k init, 0k highmem) virtual kernel memory layout: fixmap : 0xf5315000 - 0xf57fe000 (5028 kB) pkmap : 0xf5000000 - 0xf5200000 (2048 kB) vmalloc : 0xe1000000 - 0xf4ffe000 ( 319 MB) lowmem : 0xc0000000 - 0xe0800000 ( 520 MB) .init : 0xc130e000 - 0xc133b000 ( 180 kB) .data : 0xc11fb9d9 - 0xc1309714 (1079 kB) .text : 0xc1000000 - 0xc11fb9d9 (2030 kB) Checking if this processor honours the WP bit even in supervisor mode... Ok. Calibrating delay using timer specific routine.. 4262.67 BogoMIPS (lpj=8525343) Security Framework v1.0.0 initialized SELinux: Initializing. SELinux: Starting in permissive mode selinux_register_security: Registering secondary module capability Capability LSM initialized as secondary Mount-cache hash table entries: 512 CPU: Trace cache: 12K uops, L1 D cache: 8K CPU: L2 cache: 256K Checking 'hlt' instruction... OK. SMP alternatives: switching to UP code Freeing SMP alternatives: 11k freed Brought up 1 CPUs Grant table initialized NET: Registered protocol family 16 Brought up 1 CPUs PCI: Fatal: No config space access function found PCI: setting up Xen PCI frontend stub Setting up standard PCI resources ACPI: Interpreter disabled. Linux Plug and Play Support v0.97 (c) Adam Belay pnp: PnP ACPI: disabled xen_mem: Initialising balloon driver. usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb PCI: System does not support PCI PCI: System does not support PCI NetLabel: Initializing NetLabel: domain hash size = 128 NetLabel: protocols = UNLABELED CIPSOv4 NetLabel: unlabeled traffic allowed by default NET: Registered protocol family 2 IP route cache hash table entries: 32768 (order: 5, 131072 bytes) TCP established hash table entries: 131072 (order: 10, 4194304 bytes) TCP bind hash table entries: 65536 (order: 9, 2097152 bytes) TCP: Hash tables configured (established 131072 bind 65536) TCP reno registered checking if image is initramfs... it is Freeing initrd memory: 7256k freed IA-32 Microcode Update Driver: v1.14-xen <tigran(a)veritas.com> audit: initializing netlink socket (disabled) audit(1180379657.981:1): initialized VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) SELinux: Registering netfilter hooks io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered (default) pci_hotplug: PCI Hot Plug PCI Core version: 0.5 BUG: at kernel/fork.c:994 copy_process() [<c1005d9a>] show_trace_log_lvl+0x1a/0x2f [<c1006343>] show_trace+0x12/0x14 [<c10063be>] dump_stack+0x16/0x18 [<c101d044>] copy_process+0x195/0x1245 [<c101e144>] do_fork+0x50/0x117 [<c1003351>] kernel_thread+0x8e/0x96 [<c102c701>] __call_usermodehelper+0x2d/0x46 [<c102cd4f>] run_workqueue+0x89/0x145 [<c102d711>] worker_thread+0xd5/0x102 [<c102ff27>] kthread+0xb3/0xdc [<c10058db>] kernel_thread_helper+0x7/0x10 ======================= rtc: IRQ 8 is not free. Non-volatile memory driver v1.2 Linux agpgart interface v0.101 (c) Dave Jones RAMDISK driver initialized: 16 RAM disks of 16384K size 4096 blocksize input: Macintosh mouse button emulation as /class/input/input0 Xen virtual console successfully installed as xvc0 Event-channel device installed. usbcore: registered new interface driver libusual usbcore: registered new interface driver hiddev usbcore: registered new interface driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver PNP: No PS/2 controller found. Probing ports directly. i8042.c: No controller found. mice: PS/2 mouse device common for all mice TCP bic registered Initializing XFRM netlink socket NET: Registered protocol family 1 NET: Registered protocol family 17 Using IPI No-Shortcut mode XENBUS: Device with no driver: device/vbd/51712 XENBUS: Device with no driver: device/vif/0 Freeing unused kernel memory: 180k freed Write protecting the kernel read-only data: 762k ^[Domain installation still in progress. You can reconnect

3 2

[libvirt] [PATCH] Fix python error reporting for some storage operations
by Cole Robinson 07 Mar '25

07 Mar '25

In the python bindings, all vir* classes expect to be passed a virConnect object when instantiated. Before the storage stuff, these classes were only instantiated in virConnect methods, so the generator is hardcoded to pass 'self' as the connection instance to these classes. Problem is there are some methods that return pool or vol instances which aren't called from virConnect: you can lookup a storage volume's associated pool, and can lookup volumes from a pool. In these cases passing 'self' doesn't give the vir* instance a connection, so when it comes time to raise an exception crap hits the fan. Rather than rework the generator to accomodate this edge case, I just fixed the init functions for virStorage* to pull the associated connection out of the passed value if it's not a virConnect instance. Thanks, Cole diff --git a/python/generator.py b/python/generator.py index 01a17da..c706b19 100755 --- a/python/generator.py +++ b/python/generator.py @@ -962,8 +962,12 @@ def buildWrappers(): list = reference_keepers[classname] for ref in list: classes.write(" self.%s = None\n" % ref[1]) - if classname in [ "virDomain", "virNetwork", "virStoragePool", "virStorageVol" ]: + if classname in [ "virDomain", "virNetwork" ]: classes.write(" self._conn = conn\n") + elif classname in [ "virStorageVol", "virStoragePool" ]: + classes.write(" self._conn = conn\n" + \ + " if not isinstance(conn, virConnect):\n" + \ + " self._conn = conn._conn\n") classes.write(" if _obj != None:self._o = _obj;return\n") classes.write(" self._o = None\n\n"); destruct=None

4 3

[libvirt] [PATCH] Fix compile error for stable 1.2.9
by Yang hongyang 27 Oct '23

27 Oct '23

Seems a backport miss. An extra member is passed to struct virLXCBasicMountInfo. Signed-off-by: Yang hongyang <hongyang.yang(a)easystack.cn> --- src/lxc/lxc_container.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index 28dabec..1c65fa9 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -760,7 +760,7 @@ typedef struct { static const virLXCBasicMountInfo lxcBasicMounts[] = { { "proc", "/proc", "proc", MS_NOSUID|MS_NOEXEC|MS_NODEV, false, false }, - { "/proc/sys", "/proc/sys", NULL, MS_BIND|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_RDONLY, false, false, false }, + { "/proc/sys", "/proc/sys", NULL, MS_BIND|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_RDONLY, false, false }, { "sysfs", "/sys", "sysfs", MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_RDONLY, false, false }, { "securityfs", "/sys/kernel/security", "securityfs", MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_RDONLY, true, true }, #if WITH_SELINUX -- 1.7.1

3 2

[libvirt] [PATCH] web docs -- macvtap mode explanation
by Stefan Berger 27 Oct '23

27 Oct '23

This adds more information about the different macvtap device modes. Regards, Stefan

3 2

[libvirt] Supporting vhost-net and macvtap in libvirt for QEMU
by Anthony Liguori 27 Oct '23

27 Oct '23

Disclaimer: I am neither an SR-IOV nor a vhost-net expert, but I've CC'd people that are who can throw tomatoes at me for getting bits wrong :-) I wanted to start a discussion about supporting vhost-net in libvirt. vhost-net has not yet been merged into qemu but I expect it will be soon so it's a good time to start this discussion. There are two modes worth supporting for vhost-net in libvirt. The first mode is where vhost-net backs to a tun/tap device. This is behaves in very much the same way that -net tap behaves in qemu today. Basically, the difference is that the virtio backend is in the kernel instead of in qemu so there should be some performance improvement. Current, libvirt invokes qemu with -net tap,fd=X where X is an already open fd to a tun/tap device. I suspect that after we merge vhost-net, libvirt could support vhost-net in this mode by just doing -net vhost,fd=X. I think the only real question for libvirt is whether to provide a user visible switch to use vhost or to just always use vhost when it's available and it makes sense. Personally, I think the later makes sense. The more interesting invocation of vhost-net though is one where the vhost-net device backs directly to a physical network card. In this mode, vhost should get considerably better performance than the current implementation. I don't know the syntax yet, but I think it's reasonable to assume that it will look something like -net tap,dev=eth0. The effect will be that eth0 is dedicated to the guest. On most modern systems, there is a small number of network devices so this model is not all that useful except when dealing with SR-IOV adapters. In that case, each physical device can be exposed as many virtual devices (VFs). There are a few restrictions here though. The biggest is that currently, you can only change the number of VFs by reloading a kernel module so it's really a parameter that must be set at startup time. I think there are a few ways libvirt could support vhost-net in this second mode. The simplest would be to introduce a new tag similar to <source network='br0'>. In fact, if you probed the device type for the network parameter, you could probably do something like <source network='eth0'> and have it Just Work. Another model would be to have libvirt see an SR-IOV adapter as a network pool whereas it handled all of the VF management. Considering how inflexible SR-IOV is today, I'm not sure whether this is the best model. Has anyone put any more thought into this problem or how this should be modeled in libvirt? Michael, could you share your current thinking for -net syntax? -- Regards, Anthony Liguori

8 26

[libvirt] [PATCH] leasetime support per <dhcp> and <host>
by Alberto Ruiz 06 Apr '17

06 Apr '17

Support for custom dhcp wide and per host leasetime. It is specified as a child tag for <dhcp>: <dhcp> <leasetime>24h</leasetime> ... </dhcp> And as an attribute for <host>: <dhcp> <host leasetime="7d" .../> </dhcp> These are the different notations: -1 (infinite/unlimited lease) 120 (seconds are the default unit, 120 seconds is the minimum, if less is specified it will use 120) 300s (seconds) 5m (minutes) 24h (hours) 7d (days) --- docs/schemas/basictypes.rng | 5 + docs/schemas/network.rng | 8 ++ src/conf/network_conf.c | 86 +++++++++++++- src/conf/network_conf.h | 4 +- src/libvirt_private.syms | 1 + src/network/bridge_driver.c | 132 +++++++++++++++++---- src/network/bridge_driver.h | 1 + src/util/virdnsmasq.c | 106 +++++++++++------ src/util/virdnsmasq.h | 2 + .../dhcp6-nat-network.hostsfile | 7 ++ tests/networkxml2confdata/dhcp6-network.hostsfile | 5 + .../dhcp6host-routed-network.hostsfile | 7 ++ tests/networkxml2confdata/leasetime-days.conf | 17 +++ tests/networkxml2confdata/leasetime-days.xml | 18 +++ tests/networkxml2confdata/leasetime-host.conf | 16 +++ tests/networkxml2confdata/leasetime-host.hostsfile | 6 + tests/networkxml2confdata/leasetime-host.xml | 22 ++++ tests/networkxml2confdata/leasetime-hours.conf | 17 +++ tests/networkxml2confdata/leasetime-hours.xml | 18 +++ tests/networkxml2confdata/leasetime-infinite.conf | 17 +++ tests/networkxml2confdata/leasetime-infinite.xml | 18 +++ tests/networkxml2confdata/leasetime-minutes.conf | 17 +++ tests/networkxml2confdata/leasetime-minutes.xml | 18 +++ tests/networkxml2confdata/leasetime-seconds.conf | 17 +++ tests/networkxml2confdata/leasetime-seconds.xml | 18 +++ tests/networkxml2confdata/leasetime.conf | 17 +++ tests/networkxml2confdata/leasetime.xml | 18 +++ .../nat-network-dns-srv-record-minimal.hostsfile | 2 + .../nat-network-dns-srv-record.hostsfile | 2 + .../nat-network-dns-txt-record.hostsfile | 2 + .../nat-network-name-with-quotes.hostsfile | 2 + tests/networkxml2confdata/nat-network.hostsfile | 2 + tests/networkxml2conftest.c | 47 ++++++-- 33 files changed, 597 insertions(+), 78 deletions(-) create mode 100644 tests/networkxml2confdata/dhcp6-nat-network.hostsfile create mode 100644 tests/networkxml2confdata/dhcp6-network.hostsfile create mode 100644 tests/networkxml2confdata/dhcp6host-routed-network. hostsfile create mode 100644 tests/networkxml2confdata/leasetime-days.conf create mode 100644 tests/networkxml2confdata/leasetime-days.xml create mode 100644 tests/networkxml2confdata/leasetime-host.conf create mode 100644 tests/networkxml2confdata/leasetime-host.hostsfile create mode 100644 tests/networkxml2confdata/leasetime-host.xml create mode 100644 tests/networkxml2confdata/leasetime-hours.conf create mode 100644 tests/networkxml2confdata/leasetime-hours.xml create mode 100644 tests/networkxml2confdata/leasetime-infinite.conf create mode 100644 tests/networkxml2confdata/leasetime-infinite.xml create mode 100644 tests/networkxml2confdata/leasetime-minutes.conf create mode 100644 tests/networkxml2confdata/leasetime-minutes.xml create mode 100644 tests/networkxml2confdata/leasetime-seconds.conf create mode 100644 tests/networkxml2confdata/leasetime-seconds.xml create mode 100644 tests/networkxml2confdata/leasetime.conf create mode 100644 tests/networkxml2confdata/leasetime.xml create mode 100644 tests/networkxml2confdata/nat-network-dns-srv-record- minimal.hostsfile create mode 100644 tests/networkxml2confdata/nat-network-dns-srv-record. hostsfile create mode 100644 tests/networkxml2confdata/nat-network-dns-txt-record. hostsfile create mode 100644 tests/networkxml2confdata/nat-network-name-with-quotes. hostsfile create mode 100644 tests/networkxml2confdata/nat-network.hostsfile diff --git a/docs/schemas/basictypes.rng b/docs/schemas/basictypes.rng index 1b4f980..11fbe2b 100644 --- a/docs/schemas/basictypes.rng +++ b/docs/schemas/basictypes.rng @@ -518,4 +518,9 @@ </element> </define> + <define name="leaseTime"> + <data type="string"> + <param name="pattern">-?[0-9]*[smhd]?</param> + </data> + </define> </grammar> diff --git a/docs/schemas/network.rng b/docs/schemas/network.rng index 1a18e64..e6ddb63 100644 --- a/docs/schemas/network.rng +++ b/docs/schemas/network.rng @@ -340,6 +340,11 @@  <element name="dhcp"> + <optional> + <element name="leasetime"> + <ref name="leaseTime"/> + </element> + </optional> <zeroOrMore> <element name="range"> <attribute name="start"><ref name="ipAddr"/></attribute> @@ -361,6 +366,9 @@ <attribute name="name"><text/></attribute> </choice> <attribute name="ip"><ref name="ipAddr"/></attribute> + <optional> + <attribute name="leasetime"><ref name="leaseTime"/></attribute> + </optional> </element> </zeroOrMore> <optional> diff --git a/src/conf/network_conf.c b/src/conf/network_conf.c index aa39776..bcc4bbb 100644 --- a/src/conf/network_conf.c +++ b/src/conf/network_conf.c @@ -30,6 +30,8 @@ #include <fcntl.h> #include <string.h> #include <dirent.h> +#include <stdlib.h> +#include <inttypes.h> #include "virerror.h" #include "datatypes.h" @@ -911,16 +913,83 @@ virSocketAddrRangeParseXML(const char *networkName, return ret; } +static int64_t +virNetworkDHCPDefGetLeaseTime (xmlNodePtr node, + xmlXPathContextPtr ctxt, + const char* query, + bool *error) +{ + int64_t multiplier = 1, result = -1; + char *leaseString; + xmlNodePtr save; + size_t len; + + *error = 0; + + save = ctxt->node; + ctxt->node = node; + + leaseString = virXPathString (query, ctxt); + + /* If value is not present we set the value to -2 */ + if (leaseString == NULL) { + result = -2; + goto cleanup; + } + + len = strlen (leaseString) - 1; + + if (leaseString[len] == 'm') + multiplier = 60; + else if (leaseString[len] == 'h') + multiplier = 60 * 60; + else if (leaseString[len] == 'd') + multiplier = 60 * 60 * 24; + + /* Remove the time unit suffix */ + if (leaseString[len] < 48 || leaseString[len] > 57) + leaseString[len] = '\0'; + + errno = 0; + result = (int64_t) strtoll((const char*)leaseString, NULL, 10); + + /* Report any errors parsing the string */ + if (errno != 0) { + virReportError(VIR_ERR_XML_ERROR, + _("<leasetime> value could not be converted to a signed integer: %s"), + leaseString); + *error = 1; + goto cleanup; + } + + result = result * multiplier; + + if (result > UINT32_MAX || result < -1) { + virReportError(VIR_ERR_XML_ERROR, + _("<leasetime> value cannot be greater than the equivalent of %" PRIo32 " seconds or less than -1: %" PRId64), + UINT32_MAX, result); + *error = 1; + } + +cleanup: + VIR_FREE(leaseString); + ctxt->node = save; + return result; +} + static int virNetworkDHCPHostDefParseXML(const char *networkName, virNetworkIPDefPtr def, xmlNodePtr node, + xmlXPathContextPtr ctxt, virNetworkDHCPHostDefPtr host, bool partialOkay) { char *mac = NULL, *name = NULL, *ip = NULL, *id = NULL; virMacAddr addr; virSocketAddr inaddr; + int64_t leasetime; + bool error; int ret = -1; mac = virXMLPropString(node, "mac"); @@ -1013,6 +1082,10 @@ virNetworkDHCPHostDefParseXML(const char *networkName, } } + leasetime = virNetworkDHCPDefGetLeaseTime (node, ctxt, "string(./@leasetime)", &error); + if (error) + goto cleanup; + host->mac = mac; mac = NULL; host->id = id; @@ -1021,6 +1094,7 @@ virNetworkDHCPHostDefParseXML(const char *networkName, name = NULL; if (ip) host->ip = inaddr; + host->leasetime = leasetime; ret = 0; cleanup: @@ -1034,9 +1108,11 @@ virNetworkDHCPHostDefParseXML(const char *networkName, static int virNetworkDHCPDefParseXML(const char *networkName, xmlNodePtr node, + xmlXPathContextPtr ctxt, virNetworkIPDefPtr def) { int ret = -1; + bool error; xmlNodePtr cur; virSocketAddrRange range; virNetworkDHCPHostDef host; @@ -1044,6 +1120,10 @@ virNetworkDHCPDefParseXML(const char *networkName, memset(&range, 0, sizeof(range)); memset(&host, 0, sizeof(host)); + def->leasetime = virNetworkDHCPDefGetLeaseTime (node, ctxt, "string(./leasetime/text())", &error); + if (error) + goto cleanup; + cur = node->children; while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE && @@ -1057,7 +1137,7 @@ virNetworkDHCPDefParseXML(const char *networkName, } else if (cur->type == XML_ELEMENT_NODE && xmlStrEqual(cur->name, BAD_CAST "host")) { - if (virNetworkDHCPHostDefParseXML(networkName, def, cur, + if (virNetworkDHCPHostDefParseXML(networkName, def, cur, ctxt, &host, false) < 0) goto cleanup; if (VIR_APPEND_ELEMENT(def->hosts, def->nhosts, host) < 0) @@ -1607,7 +1687,7 @@ virNetworkIPDefParseXML(const char *networkName, while (cur != NULL) { if (cur->type == XML_ELEMENT_NODE && xmlStrEqual(cur->name, BAD_CAST "dhcp")) { - if (virNetworkDHCPDefParseXML(networkName, cur, def) < 0) + if (virNetworkDHCPDefParseXML(networkName, cur, ctxt, def) < 0) goto cleanup; } else if (cur->type == XML_ELEMENT_NODE && xmlStrEqual(cur->name, BAD_CAST "tftp")) { @@ -3659,7 +3739,7 @@ virNetworkDefUpdateIPDHCPHost(virNetworkDefPtr def, if (!ipdef) goto cleanup; - if (virNetworkDHCPHostDefParseXML(def->name, ipdef, ctxt->node, + if (virNetworkDHCPHostDefParseXML(def->name, ipdef, ctxt->node, ctxt, &host, partialOkay) < 0) goto cleanup; diff --git a/src/conf/network_conf.h b/src/conf/network_conf.h index 3b227db..df687df 100644 --- a/src/conf/network_conf.h +++ b/src/conf/network_conf.h @@ -96,6 +96,7 @@ struct _virNetworkDHCPHostDef { char *id; char *name; virSocketAddr ip; + int64_t leasetime; }; typedef struct _virNetworkDNSTxtDef virNetworkDNSTxtDef; @@ -170,7 +171,8 @@ struct _virNetworkIPDef { char *tftproot; char *bootfile; virSocketAddr bootserver; - }; + int64_t leasetime; +}; typedef struct _virNetworkForwardIfDef virNetworkForwardIfDef; typedef virNetworkForwardIfDef *virNetworkForwardIfDefPtr; diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index b88e903..84fb62e 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -1497,6 +1497,7 @@ dnsmasqCapsRefresh; dnsmasqContextFree; dnsmasqContextNew; dnsmasqDelete; +dnsmasqDhcpHostsToString; dnsmasqReload; dnsmasqSave; diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 7b99aca..dccf743 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -41,6 +41,8 @@ #include <sys/ioctl.h> #include <net/if.h> #include <dirent.h> +#include <inttypes.h> +#include <stdint.h> #if HAVE_SYS_SYSCTL_H # include <sys/sysctl.h> #endif @@ -859,30 +861,6 @@ networkKillDaemon(pid_t pid, const char *daemonName, const char *networkName) return ret; } -/* the following does not build a file, it builds a list - * which is later saved into a file - */ - -static int -networkBuildDnsmasqDhcpHostsList(dnsmasqContext *dctx, - virNetworkIPDefPtr ipdef) -{ - size_t i; - bool ipv6 = false; - - if (VIR_SOCKET_ADDR_IS_FAMILY(&ipdef->address, AF_INET6)) - ipv6 = true; - for (i = 0; i < ipdef->nhosts; i++) { - virNetworkDHCPHostDefPtr host = &(ipdef->hosts[i]); - if (VIR_SOCKET_ADDR_VALID(&host->ip)) - if (dnsmasqAddDhcpHost(dctx, host->mac, &host->ip, - host->name, host->id, ipv6) < 0) - return -1; - } - - return 0; -} - static int networkBuildDnsmasqHostsList(dnsmasqContext *dctx, virNetworkDNSDefPtr dnsdef) @@ -903,11 +881,93 @@ networkBuildDnsmasqHostsList(dnsmasqContext *dctx, return 0; } +/* translates the leasetime value into a dnsmasq configuration string for dhcp-range/host */ +static char * +networkDnsmasqConfLeaseValueToString (int64_t leasetime) +{ + char *result = NULL; + virBuffer leasebuf = VIR_BUFFER_INITIALIZER; + + /* Leasetime parameter set on the XML */ + /* Less than -1 means there was no value set */ + if (leasetime < -1) { + virBufferAsprintf(&leasebuf, "%s", ""); + } + /* -1 means no expiration */ + else if (leasetime == -1) + virBufferAsprintf(&leasebuf, ",infinite"); + /* Minimum expiry value is 120 */ + /* TODO: Discuss if we should up as we do here or just forward whatever value to dnsmasq */ + else if (leasetime < 120) + virBufferAsprintf(&leasebuf, ",120"); + /* DHCP value for lease time is a unsigned four octect integer */ + else if (leasetime <= UINT32_MAX) + virBufferAsprintf(&leasebuf, ",%" PRId64, leasetime); + /* TODO: Discuss the use of "deprecated" for ipv6*/ + /* TODO: Discuss what is the default value that we want as dnsmasq's is 1 hour */ + /* TODO: Discuss what to do if value exceeds maximum, use default value for now */ + else { + virBufferAsprintf(&leasebuf, "%s", ""); + } + + result = virBufferContentAndReset(&leasebuf); + virBufferFreeAndReset (&leasebuf); + + return result; +} + +/* the following does not build a file, it builds a list + * which is later saved into a file + */ + +static int +networkBuildDnsmasqDhcpHostsList(dnsmasqContext *dctx, + virNetworkIPDefPtr ipdef) +{ + int ret = -1; + size_t i; + bool ipv6 = false; + char *leasetime = networkDnsmasqConfLeaseValueTo String(ipdef->leasetime); + + if (!leasetime) + goto cleanup; + + if (VIR_SOCKET_ADDR_IS_FAMILY(&ipdef->address, AF_INET6)) + ipv6 = true; + for (i = 0; i < ipdef->nhosts; i++) { + virNetworkDHCPHostDefPtr host = &(ipdef->hosts[i]); + if (VIR_SOCKET_ADDR_VALID(&host->ip)) { + /* If the host has its own leasetime we get its specific string */ + if (host->leasetime > -2) { + char *hostlease = networkDnsmasqConfLeaseValueTo String(host->leasetime); + if (!hostlease) + goto cleanup; + if (dnsmasqAddDhcpHost(dctx, host->mac, &host->ip, + host->name, host->id, hostlease, ipv6) < 0) { + VIR_FREE(hostlease); + goto cleanup; + } + VIR_FREE(hostlease); + } else { + /* Otherwise we use the leasetime from dhcp */ + if (dnsmasqAddDhcpHost(dctx, host->mac, &host->ip, + host->name, host->id, leasetime, ipv6) < 0) + goto cleanup; + } + } + } + + ret = 0; +cleanup: + VIR_FREE(leasetime); + return ret; +} int networkDnsmasqConfContents(virNetworkObjPtr network, const char *pidfile, char **configstr, + char **hostsfilestr, dnsmasqContext *dctx, dnsmasqCapsPtr caps ATTRIBUTE_UNUSED) { @@ -1213,6 +1273,7 @@ networkDnsmasqConfContents(virNetworkObjPtr network, } for (r = 0; r < ipdef->nranges; r++) { int thisRange; + char *leasestr; if (!(saddr = virSocketAddrFormat(&ipdef->ranges[r].start)) || !(eaddr = virSocketAddrFormat(&ipdef->ranges[r].end))) @@ -1220,12 +1281,22 @@ networkDnsmasqConfContents(virNetworkObjPtr network, virBufferAsprintf(&configbuf, "dhcp-range=%s,%s", saddr, eaddr); - if (VIR_SOCKET_ADDR_IS_FAMILY(&ipdef->address, AF_INET6)) + + /* Add ipv6 prefix length parameter if needed */ + if (ipdef == ipv6def) virBufferAsprintf(&configbuf, ",%d", prefix); + + leasestr = networkDnsmasqConfLeaseValueToString (ipdef->leasetime); + if (!leasestr) + goto cleanup; + virBufferAsprintf(&configbuf, "%s", leasestr); + + /* Add the newline */ virBufferAddLit(&configbuf, "\n"); VIR_FREE(saddr); VIR_FREE(eaddr); + VIR_FREE(leasestr); thisRange = virSocketAddrGetRange(&ipdef->ranges[r].start, &ipdef->ranges[r].end, &ipdef->address, @@ -1256,6 +1327,15 @@ networkDnsmasqConfContents(virNetworkObjPtr network, if (networkBuildDnsmasqDhcpHostsList(dctx, ipdef) < 0) goto cleanup; + /* Return the contents of the hostsfile if requested */ + if (hostsfilestr) { + *hostsfilestr = dnsmasqDhcpHostsToString (dctx->hostsfile->hosts, + dctx->hostsfile->nhosts); + + if (!hostsfilestr) + goto cleanup; + } + /* Note: the following is IPv4 only */ if (VIR_SOCKET_ADDR_IS_FAMILY(&ipdef->address, AF_INET)) { if (ipdef->nranges || ipdef->nhosts) @@ -1355,7 +1435,7 @@ networkBuildDhcpDaemonCommandLine(virNetworkDriverStatePtr driver, network->dnsmasqPid = -1; - if (networkDnsmasqConfContents(network, pidfile, &configstr, + if (networkDnsmasqConfContents(network, pidfile, &configstr, NULL, dctx, dnsmasq_caps) < 0) goto cleanup; if (!configstr) diff --git a/src/network/bridge_driver.h b/src/network/bridge_driver.h index ff7f921..c653c50 100644 --- a/src/network/bridge_driver.h +++ b/src/network/bridge_driver.h @@ -53,6 +53,7 @@ int networkGetActualType(virDomainNetDefPtr iface) int networkDnsmasqConfContents(virNetworkObjPtr network, const char *pidfile, char **configstr, + char **hostsfilestr, dnsmasqContext *dctx, dnsmasqCapsPtr caps); diff --git a/src/util/virdnsmasq.c b/src/util/virdnsmasq.c index 1b78c1f..94c9a3b 100644 --- a/src/util/virdnsmasq.c +++ b/src/util/virdnsmasq.c @@ -308,52 +308,47 @@ hostsfileAdd(dnsmasqHostsfile *hostsfile, virSocketAddr *ip, const char *name, const char *id, + const char *leasetime, bool ipv6) { + int ret = -1; char *ipstr = NULL; + virBuffer hostbuf = VIR_BUFFER_INITIALIZER; + if (VIR_REALLOC_N(hostsfile->hosts, hostsfile->nhosts + 1) < 0) goto error; if (!(ipstr = virSocketAddrFormat(ip))) - return -1; + goto error; /* the first test determines if it is a dhcpv6 host */ if (ipv6) { - if (name && id) { - if (virAsprintf(&hostsfile->hosts[hostsfile->nhosts].host, - "id:%s,%s,[%s]", id, name, ipstr) < 0) - goto error; - } else if (name && !id) { - if (virAsprintf(&hostsfile->hosts[hostsfile->nhosts].host, - "%s,[%s]", name, ipstr) < 0) - goto error; - } else if (!name && id) { - if (virAsprintf(&hostsfile->hosts[hostsfile->nhosts].host, - "id:%s,[%s]", id, ipstr) < 0) - goto error; - } + if (name && id) + virBufferAsprintf(&hostbuf, "id:%s,%s,[%s]", id, name, ipstr); + else if (name && !id) + virBufferAsprintf(&hostbuf, "%s,[%s]", name, ipstr); + else if (!name && id) + virBufferAsprintf(&hostbuf, "id:%s,[%s]", id, ipstr); } else if (name && mac) { - if (virAsprintf(&hostsfile->hosts[hostsfile->nhosts].host, "%s,%s,%s", - mac, ipstr, name) < 0) - goto error; + virBufferAsprintf(&hostbuf, "%s,%s,%s", mac, ipstr, name); } else if (name && !mac) { - if (virAsprintf(&hostsfile->hosts[hostsfile->nhosts].host, "%s,%s", - name, ipstr) < 0) - goto error; + virBufferAsprintf(&hostbuf, "%s,%s", name, ipstr); } else { - if (virAsprintf(&hostsfile->hosts[hostsfile->nhosts].host, "%s,%s", - mac, ipstr) < 0) - goto error; + virBufferAsprintf(&hostbuf, "%s,%s", mac, ipstr); } - VIR_FREE(ipstr); - hostsfile->nhosts++; + /* The leasetime string already includes comma if there's any value at all */ + virBufferAsprintf(&hostbuf, "%s", leasetime); - return 0; + if (!(hostsfile->hosts[hostsfile->nhosts].host = virBufferContentAndReset (&hostbuf))) + goto error; + hostsfile->nhosts++; + ret = 0; error: + virBufferFreeAndReset(&hostbuf); VIR_FREE(ipstr); - return -1; + return ret; } static dnsmasqHostsfile * @@ -391,10 +386,9 @@ hostsfileWrite(const char *path, dnsmasqDhcpHost *hosts, unsigned int nhosts) { - char *tmp; + char *tmp, *content = NULL; FILE *f; bool istmp = true; - size_t i; int rc = 0; /* even if there are 0 hosts, create a 0 length file, to allow @@ -412,17 +406,21 @@ hostsfileWrite(const char *path, } } - for (i = 0; i < nhosts; i++) { - if (fputs(hosts[i].host, f) == EOF || fputc('\n', f) == EOF) { - rc = -errno; - VIR_FORCE_FCLOSE(f); + if (!(content = dnsmasqDhcpHostsToString(hosts, nhosts))) { + rc = -ENOMEM; + goto cleanup; + } - if (istmp) - unlink(tmp); + if (fputs(content, f) == EOF) { + rc = -errno; + VIR_FORCE_FCLOSE(f); + + if (istmp) + unlink(tmp); + + goto cleanup; + } - goto cleanup; - } - } if (VIR_FCLOSE(f) == EOF) { rc = -errno; @@ -436,6 +434,7 @@ hostsfileWrite(const char *path, } cleanup: + VIR_FREE(content); VIR_FREE(tmp); return rc; @@ -524,9 +523,10 @@ dnsmasqAddDhcpHost(dnsmasqContext *ctx, virSocketAddr *ip, const char *name, const char *id, + const char *leasetime, bool ipv6) { - return hostsfileAdd(ctx->hostsfile, mac, ip, name, id, ipv6); + return hostsfileAdd(ctx->hostsfile, mac, ip, name, id, leasetime, ipv6); } /* @@ -892,3 +892,31 @@ dnsmasqCapsGet(dnsmasqCapsPtr caps, dnsmasqCapsFlags flag) return caps && virBitmapIsBitSet(caps->flags, flag); } + +/** dnsmasqDhcpHostsToString: + * + * Turns a vector of dnsmasqDhcpHost into the string that is ought to be + * stored in the hostsfile, this functionality is split to make hostsfiles + * testable. Returs NULL if nhosts is 0. + */ +char * +dnsmasqDhcpHostsToString (dnsmasqDhcpHost *hosts, + unsigned int nhosts) +{ + int i; + char *result = NULL; + virBuffer hostsfilebuf = VIR_BUFFER_INITIALIZER; + + if (nhosts == 0) + goto cleanup; + + for (i = 0; i < nhosts; i++) { + virBufferAsprintf(&hostsfilebuf, "%s\n", hosts[i].host); + } + + result = virBufferContentAndReset(&hostsfilebuf); + +cleanup: + virBufferFreeAndReset(&hostsfilebuf); + return result; +} diff --git a/src/util/virdnsmasq.h b/src/util/virdnsmasq.h index f47bea3..1795bc8 100644 --- a/src/util/virdnsmasq.h +++ b/src/util/virdnsmasq.h @@ -88,6 +88,7 @@ int dnsmasqAddDhcpHost(dnsmasqContext *ctx, virSocketAddr *ip, const char *name, const char *id, + const char *leastime, bool ipv6); int dnsmasqAddHost(dnsmasqContext *ctx, virSocketAddr *ip, @@ -105,6 +106,7 @@ int dnsmasqCapsRefresh(dnsmasqCapsPtr *caps, const char *binaryPath); bool dnsmasqCapsGet(dnsmasqCapsPtr caps, dnsmasqCapsFlags flag); const char *dnsmasqCapsGetBinaryPath(dnsmasqCapsPtr caps); unsigned long dnsmasqCapsGetVersion(dnsmasqCapsPtr caps); +char *dnsmasqDhcpHostsToString(dnsmasqDhcpHost *hosts, unsigned int nhosts); # define DNSMASQ_DHCPv6_MAJOR_REQD 2 # define DNSMASQ_DHCPv6_MINOR_REQD 64 diff --git a/tests/networkxml2confdata/dhcp6-nat-network.hostsfile b/tests/networkxml2confdata/dhcp6-nat-network.hostsfile new file mode 100644 index 0000000..de659b9 --- /dev/null +++ b/tests/networkxml2confdata/dhcp6-nat-network.hostsfile @@ -0,0 +1,7 @@ +00:16:3e:77:e2:ed,192.168.122.10,a.example.com +00:16:3e:3e:a9:1a,192.168.122.11,b.example.com +id:0:4:7e:7d:f0:7d:a8:bc:c5:d2:13:32:11:ed:16:ea:84:63,[ 2001:db8:ac10:fd01::1:20] +paul,[2001:db8:ac10:fd01::1:21] +id:0:3:0:1:0:16:3e:11:22:33,peter.xyz,[2001:db8:ac10:fd01::1:22] +id:0:3:0:1:0:16:3e:44:55:33,[2001:db8:ac10:fd01::1:23] +id:0:1:0:1:18:aa:62:fe:0:16:3e:44:55:66,badbob,[2001:db8:ac10:fd01::1:24] diff --git a/tests/networkxml2confdata/dhcp6-network.hostsfile b/tests/networkxml2confdata/dhcp6-network.hostsfile new file mode 100644 index 0000000..9dfb172 --- /dev/null +++ b/tests/networkxml2confdata/dhcp6-network.hostsfile @@ -0,0 +1,5 @@ +id:0:4:7e:7d:f0:7d:a8:bc:c5:d2:13:32:11:ed:16:ea:84:63,[ 2001:db8:ac10:fd01::1:20] +paul,[2001:db8:ac10:fd01::1:21] +id:0:3:0:1:0:16:3e:11:22:33,peter.xyz,[2001:db8:ac10:fd01::1:22] +id:0:3:0:1:0:16:3e:44:55:33,[2001:db8:ac10:fd01::1:23] +id:0:1:0:1:18:aa:62:fe:0:16:3e:44:55:66,badbob,[2001:db8:ac10:fd01::1:24] diff --git a/tests/networkxml2confdata/dhcp6host-routed-network.hostsfile b/tests/networkxml2confdata/dhcp6host-routed-network.hostsfile new file mode 100644 index 0000000..de659b9 --- /dev/null +++ b/tests/networkxml2confdata/dhcp6host-routed-network.hostsfile @@ -0,0 +1,7 @@ +00:16:3e:77:e2:ed,192.168.122.10,a.example.com +00:16:3e:3e:a9:1a,192.168.122.11,b.example.com +id:0:4:7e:7d:f0:7d:a8:bc:c5:d2:13:32:11:ed:16:ea:84:63,[ 2001:db8:ac10:fd01::1:20] +paul,[2001:db8:ac10:fd01::1:21] +id:0:3:0:1:0:16:3e:11:22:33,peter.xyz,[2001:db8:ac10:fd01::1:22] +id:0:3:0:1:0:16:3e:44:55:33,[2001:db8:ac10:fd01::1:23] +id:0:1:0:1:18:aa:62:fe:0:16:3e:44:55:66,badbob,[2001:db8:ac10:fd01::1:24] diff --git a/tests/networkxml2confdata/leasetime-days.conf b/tests/networkxml2confdata/leasetime-days.conf new file mode 100644 index 0000000..9501e2f --- /dev/null +++ b/tests/networkxml2confdata/leasetime-days.conf @@ -0,0 +1,17 @@ +##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE +##OVERWRITTEN AND LOST. Changes to this configuration should be made using: +## virsh net-edit default +## or other application using the libvirt API. +## +## dnsmasq conf file created by libvirt +strict-order +except-interface=lo +bind-dynamic +interface=virbr0 +dhcp-range=192.168.122.2,192.168.122.254,86400 +dhcp-no-override +dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,86400 +dhcp-lease-max=493 +dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile +addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts +enable-ra diff --git a/tests/networkxml2confdata/leasetime-days.xml b/tests/networkxml2confdata/leasetime-days.xml new file mode 100644 index 0000000..1a507d5 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-days.xml @@ -0,0 +1,18 @@ +<network> + <name>default</name> + <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid> + <forward dev='eth1' mode='nat'/> + <bridge name='virbr0' stp='on' delay='0'/> + <ip address='192.168.122.1' netmask='255.255.255.0'> + <dhcp> + <leasetime>1d</leasetime> + <range start='192.168.122.2' end='192.168.122.254'/> + </dhcp> + </ip> + <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'> + <dhcp> + <leasetime>1d</leasetime> + <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/> + </dhcp> + </ip> +</network> diff --git a/tests/networkxml2confdata/leasetime-host.conf b/tests/networkxml2confdata/leasetime-host.conf new file mode 100644 index 0000000..7bd2054 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-host.conf @@ -0,0 +1,16 @@ +##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE +##OVERWRITTEN AND LOST. Changes to this configuration should be made using: +## virsh net-edit default +## or other application using the libvirt API. +## +## dnsmasq conf file created by libvirt +strict-order +except-interface=lo +bind-dynamic +interface=virbr0 +srv-host=_name._tcp +dhcp-range=192.168.122.2,192.168.122.254 +dhcp-no-override +dhcp-lease-max=253 +dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile +addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts diff --git a/tests/networkxml2confdata/leasetime-host.hostsfile b/tests/networkxml2confdata/leasetime-host.hostsfile new file mode 100644 index 0000000..fd20ca2 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-host.hostsfile @@ -0,0 +1,6 @@ +00:16:3e:3e:a9:01,192.168.122.11,a.example.com,3600 +00:16:3e:3e:a9:02,192.168.122.12,b.example.com,3600 +00:16:3e:3e:a9:03,192.168.122.13,c.example.com,3600 +00:16:3e:3e:a9:04,192.168.122.14,d.example.com,86400 +00:16:3e:3e:a9:05,192.168.122.15,e.example.com,3600 +00:16:3e:3e:a9:06,192.168.122.16,f.example.com,infinite diff --git a/tests/networkxml2confdata/leasetime-host.xml b/tests/networkxml2confdata/leasetime-host.xml new file mode 100644 index 0000000..276d3e5 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-host.xml @@ -0,0 +1,22 @@ +<network> + <name>default</name> + <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid> + <forward dev='eth1' mode='nat'> + <interface dev='eth1'/> + </forward> + <bridge name='virbr0' stp='on' delay='0'/> + <dns> + <srv service='name' protocol='tcp'/> + </dns> + <ip address='192.168.122.1' netmask='255.255.255.0'> + <dhcp> + <range start='192.168.122.2' end='192.168.122.254'/> + <host mac='00:16:3e:3e:a9:1a' name='a.example.com' ip='192.168.122.11' leasetime="3600s"/> + <host mac='00:16:3e:3e:a9:1b' name='b.example.com' ip='192.168.122.12' leasetime="60m"/> + <host mac='00:16:3e:3e:a9:1c' name='c.example.com' ip='192.168.122.13' leasetime="1h"/> + <host mac='00:16:3e:3e:a9:1d' name='d.example.com' ip='192.168.122.14' leasetime="1d"/> + <host mac='00:16:3e:3e:a9:1e' name='e.example.com' ip='192.168.122.15' leasetime="3600"/> + <host mac='00:16:3e:3e:a9:1f' name='f.example.com' ip='192.168.122.16' leasetime="-1"/> + </dhcp> + </ip> +</network> diff --git a/tests/networkxml2confdata/leasetime-hours.conf b/tests/networkxml2confdata/leasetime-hours.conf new file mode 100644 index 0000000..021a769 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-hours.conf @@ -0,0 +1,17 @@ +##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE +##OVERWRITTEN AND LOST. Changes to this configuration should be made using: +## virsh net-edit default +## or other application using the libvirt API. +## +## dnsmasq conf file created by libvirt +strict-order +except-interface=lo +bind-dynamic +interface=virbr0 +dhcp-range=192.168.122.2,192.168.122.254,3600 +dhcp-no-override +dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,3600 +dhcp-lease-max=493 +dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile +addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts +enable-ra diff --git a/tests/networkxml2confdata/leasetime-hours.xml b/tests/networkxml2confdata/leasetime-hours.xml new file mode 100644 index 0000000..36dc600 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-hours.xml @@ -0,0 +1,18 @@ +<network> + <name>default</name> + <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid> + <forward dev='eth1' mode='nat'/> + <bridge name='virbr0' stp='on' delay='0'/> + <ip address='192.168.122.1' netmask='255.255.255.0'> + <dhcp> + <leasetime>1h</leasetime> + <range start='192.168.122.2' end='192.168.122.254'/> + </dhcp> + </ip> + <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'> + <dhcp> + <leasetime>1h</leasetime> + <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/> + </dhcp> + </ip> +</network> diff --git a/tests/networkxml2confdata/leasetime-infinite.conf b/tests/networkxml2confdata/leasetime-infinite.conf new file mode 100644 index 0000000..cc21135 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-infinite.conf @@ -0,0 +1,17 @@ +##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE +##OVERWRITTEN AND LOST. Changes to this configuration should be made using: +## virsh net-edit default +## or other application using the libvirt API. +## +## dnsmasq conf file created by libvirt +strict-order +except-interface=lo +bind-dynamic +interface=virbr0 +dhcp-range=192.168.122.2,192.168.122.254,infinite +dhcp-no-override +dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,infinite +dhcp-lease-max=493 +dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile +addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts +enable-ra diff --git a/tests/networkxml2confdata/leasetime-infinite.xml b/tests/networkxml2confdata/leasetime-infinite.xml new file mode 100644 index 0000000..bc8740e --- /dev/null +++ b/tests/networkxml2confdata/leasetime-infinite.xml @@ -0,0 +1,18 @@ +<network> + <name>default</name> + <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid> + <forward dev='eth1' mode='nat'/> + <bridge name='virbr0' stp='on' delay='0'/> + <ip address='192.168.122.1' netmask='255.255.255.0'> + <dhcp> + <leasetime>-1</leasetime> + <range start='192.168.122.2' end='192.168.122.254'/> + </dhcp> + </ip> + <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'> + <dhcp> + <leasetime>-1</leasetime> + <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/> + </dhcp> + </ip> +</network> diff --git a/tests/networkxml2confdata/leasetime-minutes.conf b/tests/networkxml2confdata/leasetime-minutes.conf new file mode 100644 index 0000000..db68895 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-minutes.conf @@ -0,0 +1,17 @@ +##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE +##OVERWRITTEN AND LOST. Changes to this configuration should be made using: +## virsh net-edit default +## or other application using the libvirt API. +## +## dnsmasq conf file created by libvirt +strict-order +except-interface=lo +bind-dynamic +interface=virbr0 +dhcp-range=192.168.122.2,192.168.122.254,300 +dhcp-no-override +dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,300 +dhcp-lease-max=493 +dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile +addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts +enable-ra diff --git a/tests/networkxml2confdata/leasetime-minutes.xml b/tests/networkxml2confdata/leasetime-minutes.xml new file mode 100644 index 0000000..7c1df25 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-minutes.xml @@ -0,0 +1,18 @@ +<network> + <name>default</name> + <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid> + <forward dev='eth1' mode='nat'/> + <bridge name='virbr0' stp='on' delay='0'/> + <ip address='192.168.122.1' netmask='255.255.255.0'> + <dhcp> + <leasetime>5m</leasetime> + <range start='192.168.122.2' end='192.168.122.254'/> + </dhcp> + </ip> + <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'> + <dhcp> + <leasetime>5m</leasetime> + <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/> + </dhcp> + </ip> +</network> diff --git a/tests/networkxml2confdata/leasetime-seconds.conf b/tests/networkxml2confdata/leasetime-seconds.conf new file mode 100644 index 0000000..635896b --- /dev/null +++ b/tests/networkxml2confdata/leasetime-seconds.conf @@ -0,0 +1,17 @@ +##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE +##OVERWRITTEN AND LOST. Changes to this configuration should be made using: +## virsh net-edit default +## or other application using the libvirt API. +## +## dnsmasq conf file created by libvirt +strict-order +except-interface=lo +bind-dynamic +interface=virbr0 +dhcp-range=192.168.122.2,192.168.122.254,125 +dhcp-no-override +dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,125 +dhcp-lease-max=493 +dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile +addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts +enable-ra diff --git a/tests/networkxml2confdata/leasetime-seconds.xml b/tests/networkxml2confdata/leasetime-seconds.xml new file mode 100644 index 0000000..dcb3f91 --- /dev/null +++ b/tests/networkxml2confdata/leasetime-seconds.xml @@ -0,0 +1,18 @@ +<network> + <name>default</name> + <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid> + <forward dev='eth1' mode='nat'/> + <bridge name='virbr0' stp='on' delay='0'/> + <ip address='192.168.122.1' netmask='255.255.255.0'> + <dhcp> + <leasetime>125s</leasetime> + <range start='192.168.122.2' end='192.168.122.254'/> + </dhcp> + </ip> + <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'> + <dhcp> + <leasetime>125s</leasetime> + <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/> + </dhcp> + </ip> +</network> diff --git a/tests/networkxml2confdata/leasetime.conf b/tests/networkxml2confdata/leasetime.conf new file mode 100644 index 0000000..72a2f69 --- /dev/null +++ b/tests/networkxml2confdata/leasetime.conf @@ -0,0 +1,17 @@ +##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE +##OVERWRITTEN AND LOST. Changes to this configuration should be made using: +## virsh net-edit default +## or other application using the libvirt API. +## +## dnsmasq conf file created by libvirt +strict-order +except-interface=lo +bind-dynamic +interface=virbr0 +dhcp-range=192.168.122.2,192.168.122.254,122 +dhcp-no-override +dhcp-range=2001:db8:ac10:fd01::1:10,2001:db8:ac10:fd01::1:ff,64,121 +dhcp-lease-max=493 +dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile +addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts +enable-ra diff --git a/tests/networkxml2confdata/leasetime.xml b/tests/networkxml2confdata/leasetime.xml new file mode 100644 index 0000000..fdbb15f --- /dev/null +++ b/tests/networkxml2confdata/leasetime.xml @@ -0,0 +1,18 @@ +<network> + <name>default</name> + <uuid>81ff0d90-c91e-6742-64da-4a736edb9a9b</uuid> + <forward dev='eth1' mode='nat'/> + <bridge name='virbr0' stp='on' delay='0'/> + <ip address='192.168.122.1' netmask='255.255.255.0'> + <dhcp> + <leasetime>122</leasetime> + <range start='192.168.122.2' end='192.168.122.254'/> + </dhcp> + </ip> + <ip family='ipv6' address='2001:db8:ac10:fd01::1' prefix='64'> + <dhcp> + <leasetime>121</leasetime> + <range start='2001:db8:ac10:fd01::1:10' end='2001:db8:ac10:fd01::1:ff'/> + </dhcp> + </ip> +</network> diff --git a/tests/networkxml2confdata/nat-network-dns-srv-record-minimal.hostsfile b/tests/networkxml2confdata/nat-network-dns-srv-record-minimal.hostsfile new file mode 100644 index 0000000..deb3f00 --- /dev/null +++ b/tests/networkxml2confdata/nat-network-dns-srv-record-minimal.hostsfile @@ -0,0 +1,2 @@ +00:16:3e:77:e2:ed,192.168.122.10,a.example.com +00:16:3e:3e:a9:1a,192.168.122.11,b.example.com diff --git a/tests/networkxml2confdata/nat-network-dns-srv-record.hostsfile b/tests/networkxml2confdata/nat-network-dns-srv-record.hostsfile new file mode 100644 index 0000000..deb3f00 --- /dev/null +++ b/tests/networkxml2confdata/nat-network-dns-srv-record.hostsfile @@ -0,0 +1,2 @@ +00:16:3e:77:e2:ed,192.168.122.10,a.example.com +00:16:3e:3e:a9:1a,192.168.122.11,b.example.com diff --git a/tests/networkxml2confdata/nat-network-dns-txt-record.hostsfile b/tests/networkxml2confdata/nat-network-dns-txt-record.hostsfile new file mode 100644 index 0000000..deb3f00 --- /dev/null +++ b/tests/networkxml2confdata/nat-network-dns-txt-record.hostsfile @@ -0,0 +1,2 @@ +00:16:3e:77:e2:ed,192.168.122.10,a.example.com +00:16:3e:3e:a9:1a,192.168.122.11,b.example.com diff --git a/tests/networkxml2confdata/nat-network-name-with-quotes.hostsfile b/tests/networkxml2confdata/nat-network-name-with-quotes.hostsfile new file mode 100644 index 0000000..deb3f00 --- /dev/null +++ b/tests/networkxml2confdata/nat-network-name-with-quotes.hostsfile @@ -0,0 +1,2 @@ +00:16:3e:77:e2:ed,192.168.122.10,a.example.com +00:16:3e:3e:a9:1a,192.168.122.11,b.example.com diff --git a/tests/networkxml2confdata/nat-network.hostsfile b/tests/networkxml2confdata/nat-network.hostsfile new file mode 100644 index 0000000..deb3f00 --- /dev/null +++ b/tests/networkxml2confdata/nat-network.hostsfile @@ -0,0 +1,2 @@ +00:16:3e:77:e2:ed,192.168.122.10,a.example.com +00:16:3e:3e:a9:1a,192.168.122.11,b.example.com diff --git a/tests/networkxml2conftest.c b/tests/networkxml2conftest.c index 65a0e32..8e1f8be 100644 --- a/tests/networkxml2conftest.c +++ b/tests/networkxml2conftest.c @@ -19,9 +19,13 @@ #define VIR_FROM_THIS VIR_FROM_NONE static int -testCompareXMLToConfFiles(const char *inxml, const char *outconf, dnsmasqCapsPtr caps) +testCompareXMLToConfFiles(const char *inxml, + const char *outconf, + const char *outhostsfile, + dnsmasqCapsPtr caps) { - char *actual = NULL; + char *actualconf = NULL; + char *actualhosts = NULL; int ret = -1; virNetworkDefPtr dev = NULL; virNetworkObjPtr obj = NULL; @@ -41,17 +45,30 @@ testCompareXMLToConfFiles(const char *inxml, const char *outconf, dnsmasqCapsPtr if (dctx == NULL) goto fail; - if (networkDnsmasqConfContents(obj, pidfile, &actual, + if (networkDnsmasqConfContents(obj, pidfile, &actualconf, &actualhosts, dctx, caps) < 0) goto fail; - if (virTestCompareToFile(actual, outconf) < 0) + if (virTestCompareToFile(actualconf, outconf) < 0) goto fail; + if (virFileExists(outhostsfile)) { + if (!actualhosts) { + fprintf(stderr, "%s: hostsfile exists but the configuration did not specify any host", outhostsfile); + goto fail; + } else if (virTestCompareToFile(actualhosts, outhostsfile) < 0) { + goto fail; + } + } else if (actualhosts) { + fprintf(stderr, "%s: file does not exist but actual data was expected", outhostsfile); + goto fail; + } + ret = 0; fail: - VIR_FREE(actual); + VIR_FREE(actualconf); + VIR_FREE(actualhosts); VIR_FREE(pidfile); virCommandFree(cmd); virObjectUnref(obj); @@ -70,20 +87,24 @@ testCompareXMLToConfHelper(const void *data) int result = -1; const testInfo *info = data; char *inxml = NULL; - char *outxml = NULL; + char *outconf = NULL; + char *outhostsfile = NULL; if (virAsprintf(&inxml, "%s/networkxml2confdata/%s.xml", abs_srcdir, info->name) < 0 || - virAsprintf(&outxml, "%s/networkxml2confdata/%s.conf", + virAsprintf(&outconf, "%s/networkxml2confdata/%s.conf", + abs_srcdir, info->name) < 0 || + virAsprintf(&outhostsfile, "%s/networkxml2confdata/%s.hostsfile", abs_srcdir, info->name) < 0) { goto cleanup; } - result = testCompareXMLToConfFiles(inxml, outxml, info->caps); + result = testCompareXMLToConfFiles(inxml, outconf, outhostsfile, info->caps); cleanup: VIR_FREE(inxml); - VIR_FREE(outxml); + VIR_FREE(outconf); + VIR_FREE(outhostsfile); return result; } @@ -129,6 +150,14 @@ mymain(void) DO_TEST("dhcp6-network", dhcpv6); DO_TEST("dhcp6-nat-network", dhcpv6); DO_TEST("dhcp6host-routed-network", dhcpv6); + DO_TEST("leasetime", dhcpv6); + DO_TEST("leasetime-seconds", dhcpv6); + DO_TEST("leasetime-hours", dhcpv6); + DO_TEST("leasetime-minutes", dhcpv6); + DO_TEST("leasetime-hours", dhcpv6); + DO_TEST("leasetime-days", dhcpv6); + DO_TEST("leasetime-infinite", dhcpv6); + DO_TEST("leasetime-host", dhcpv6); virObjectUnref(dhcpv6); virObjectUnref(full); -- 2.9.3 -- Alberto Ruiz Associate Engineering Manager - Desktop Management Tools Red Hat

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[libvirt] [PATCH] Make use of PERF_COUNT_HW_REF_CPU_CYCLES conditional
by Daniel P. Berrange 08 Mar '17

08 Mar '17

The PERF_COUNT_HW_REF_CPU_CYCLES constant is not available on all Linux distros libvirt targets, so its use must be made conditional. Other constant have existed long enough that we can assume they exist, as we don't support very old distros like RHEL-5 any more. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/util/virperf.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/src/util/virperf.c b/src/util/virperf.c index 49ec258..f64692b 100644 --- a/src/util/virperf.c +++ b/src/util/virperf.c @@ -104,8 +104,14 @@ static struct virPerfEventAttr attrs[] = { .attrType = PERF_TYPE_HARDWARE, .attrConfig = PERF_COUNT_HW_STALLED_CYCLES_BACKEND}, {.type = VIR_PERF_EVENT_REF_CPU_CYCLES, +# ifdef PERF_COUNT_HW_REF_CPU_CYCLES .attrType = PERF_TYPE_HARDWARE, - .attrConfig = PERF_COUNT_HW_REF_CPU_CYCLES}, + .attrConfig = PERF_COUNT_HW_REF_CPU_CYCLES +# else + .attrType = 0, + .attrConfig = 0, +# endif + }, }; typedef struct virPerfEventAttr *virPerfEventAttrPtr; -- 2.9.3

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[libvirt] [PATCH] network: don't use dhcp-authoritative on static networks
by Martin Wilck 07 Mar '17

07 Mar '17

"Static" DHCP networks are those where no dynamic DHCP range is defined, only a list of host entries is used to serve permanent IP addresses. On such networks, we don't want dnsmasq to reply to other requests than those statically defined. But "dhcp-authoritative" will cause dnsmasq to do just that. Therefore we can't use "dhcp-authoritative" for static networks. Fixes: 4ac20b3ae "network: add dnsmasq option 'dhcp-authoritative'" Signed-off-by: Martin Wilck <mwilck(a)suse.com> --- src/network/bridge_driver.c | 9 ++++++++- tests/networkxml2confdata/dhcp6host-routed-network.conf | 1 - 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index ae1589d8c..17c6f3a0f 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -1355,7 +1355,14 @@ networkDnsmasqConfContents(virNetworkObjPtr network, if (VIR_SOCKET_ADDR_IS_FAMILY(&ipdef->address, AF_INET)) { if (ipdef->nranges || ipdef->nhosts) { virBufferAddLit(&configbuf, "dhcp-no-override\n"); - virBufferAddLit(&configbuf, "dhcp-authoritative\n"); + /* + * Use "dhcp-authoritative" only for dynamic DHCP. + * In a static-only network, it would cause dnsmasq + * to reply to requests from other hosts than those + * statically defined. + */ + if (ipdef->nranges || !ipdef->nhosts) + virBufferAddLit(&configbuf, "dhcp-authoritative\n"); } if (ipdef->tftproot) { diff --git a/tests/networkxml2confdata/dhcp6host-routed-network.conf b/tests/networkxml2confdata/dhcp6host-routed-network.conf index 87a149880..5728ee430 100644 --- a/tests/networkxml2confdata/dhcp6host-routed-network.conf +++ b/tests/networkxml2confdata/dhcp6host-routed-network.conf @@ -10,7 +10,6 @@ bind-dynamic interface=virbr1 dhcp-range=192.168.122.1,static dhcp-no-override -dhcp-authoritative dhcp-range=2001:db8:ac10:fd01::1,static,64 dhcp-hostsfile=/var/lib/libvirt/dnsmasq/local.hostsfile addn-hosts=/var/lib/libvirt/dnsmasq/local.addnhosts -- 2.11.0

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[libvirt] [PATCH] node_device: Check return value for udev_new()
by Marc Hartmayer 20 Feb '17

20 Feb '17

The comment was actually wrong as https://www.freedesktop.org/software/systemd/man/udev_new.html mentions that on failure NULL is returned. Signed-off-by: Marc Hartmayer <mhartmay(a)linux.vnet.ibm.com> Reviewed-by: Bjoern Walk <bwalk(a)linux.vnet.ibm.com> Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com> --- src/node_device/node_device_udev.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index 4b81312..4b0a875 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -1491,13 +1491,11 @@ static int nodeStateInitialize(bool privileged, if (udevPCITranslateInit(privileged) < 0) goto cleanup; - /* - * http://www.kernel.org/pub/linux/utils/kernel/hotplug/libudev/libudev-udev.h… - * - * indicates no return value other than success, so we don't check - * its return value. - */ udev = udev_new(); + if (!udev) { + virReportOOMError(); + goto cleanup; + } #if HAVE_UDEV_LOGGING /* cast to get rid of missing-format-attribute warning */ udev_set_log_fn(udev, (udevLogFunctionPtr) udevLogFunction); -- 2.5.5

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[libvirt] [PATCH v2 00/12] qemu: migration: show disks stats for nbd migration
by Nikolay Shirokovskiy 17 Feb '17

17 Feb '17

diff from v1: ============ 1. patch "qemu: clean out unused migrate to unix" is dropped as it is already pushed. 2. a lot of refactoring patches added, namely all except the last patch. 3. fetching mirroring stats is done separately from getting migration status. Generally speaking refactorings patches removes the function to fetch migrations status altogether. Current migration stats will show something like [1] when in the process of mirroring of non shared disks. This gives very little info on the migration progress. Likewise completed stats miss disks mirroring info. This patch provides disks stats in the said phase like in [2] so user can now understand what's going on. However data stats miss memory stats, so data total and remaining will change when memory migration starts. AFAIU disks stats were available before the nbd based migration becomes the default. So this patch returns disks stats back at some level. [1] Job type: Unbounded Time elapsed: 4964 ms [2] Job type: Unbounded Time elapsed: 4964 ms Data processed: 146.000 MiB Data remaining: 854.000 MiB Data total: 1000.000 MiB File processed: 146.000 MiB File remaining: 854.000 MiB File total: 1000.000 MiB Nikolay Shirokovskiy (12): qemu: qemuDomainJobInfoToParams drop unused code qemu: introduce qemu domain job status qemu: introduce QEMU_DOMAIN_JOB_STATUS_POSTCOPY qemu: drop QEMU_MIGRATION_COMPLETED_UPDATE_STATS qemu: drop excessive zero-out in qemuMigrationFetchJobStatus qemu: drop fetch and update status functions qemu: simplify getting completed job stats qemu: drop unused code in qemuDomainGetJobStatsInternal qemu: drop fetch flag in qemuDomainGetJobStatsInternal qemu: split getting stats for migration and others qemu: introduce QEMU_DOMAIN_JOB_STATUS_PREPARE qemu: show disks stats for nbd migration docs/news.html.in | 4 + src/qemu/qemu_domain.c | 32 ++++++-- src/qemu/qemu_domain.h | 13 +++- src/qemu/qemu_driver.c | 100 ++++++++++++++---------- src/qemu/qemu_migration.c | 195 ++++++++++++++++++++++++++-------------------- src/qemu/qemu_migration.h | 8 +- src/qemu/qemu_process.c | 6 +- 7 files changed, 214 insertions(+), 144 deletions(-) -- 1.8.3.1

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