[libvirt] [libvirt-dbus][PATCH v4 0/2] Implement snapshots
Changes since v2: Implement and use virtDBusDomainSnapshotGetVirDomainSnapshot Add domain snapshot xml file to data/meson.build Fix flake8 style errors Simon Kobyda (2): Introduce Domain Snapshot Interface Implement snapshots APIs data/meson.build | 1 + data/org.libvirt.Domain.xml | 26 +++ data/org.libvirt.DomainSnapshot.xml | 41 ++++ src/connect.c | 6 + src/connect.h | 1 + src/domain.c | 154 +++++++++++++++ src/domainsnapshot.c | 291 ++++++++++++++++++++++++++++ src/domainsnapshot.h | 9 + src/meson.build | 1 + src/util.c | 53 +++++ src/util.h | 16 ++ tests/libvirttest.py | 12 ++ tests/meson.build | 1 + tests/test_domain.py | 8 + tests/test_snapshot.py | 45 +++++ tests/xmldata.py | 6 + 16 files changed, 671 insertions(+) create mode 100644 data/org.libvirt.DomainSnapshot.xml create mode 100644 src/domainsnapshot.c create mode 100644 src/domainsnapshot.h create mode 100755 tests/test_snapshot.py -- 2.21.0
Signed-off-by: Simon Kobyda <skobyda@redhat.com> --- data/meson.build | 1 + data/org.libvirt.DomainSnapshot.xml | 7 +++ src/connect.c | 6 +++ src/connect.h | 1 + src/domainsnapshot.c | 75 +++++++++++++++++++++++++++++ src/domainsnapshot.h | 9 ++++ src/meson.build | 1 + src/util.c | 53 ++++++++++++++++++++ src/util.h | 16 ++++++ 9 files changed, 169 insertions(+) create mode 100644 data/org.libvirt.DomainSnapshot.xml create mode 100644 src/domainsnapshot.c create mode 100644 src/domainsnapshot.h diff --git a/data/meson.build b/data/meson.build index 42a6799..0bd6338 100644 --- a/data/meson.build +++ b/data/meson.build @@ -1,6 +1,7 @@ install_data( 'org.libvirt.Connect.xml', 'org.libvirt.Domain.xml', + 'org.libvirt.DomainSnapshot.xml', 'org.libvirt.Interface.xml', 'org.libvirt.Network.xml', 'org.libvirt.NodeDevice.xml', diff --git a/data/org.libvirt.DomainSnapshot.xml b/data/org.libvirt.DomainSnapshot.xml new file mode 100644 index 0000000..8ba059f --- /dev/null +++ b/data/org.libvirt.DomainSnapshot.xml @@ -0,0 +1,7 @@ +<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN" +"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd"> + +<node name="/org/libvirt/domainsnapshot"> + <interface name="org.libvirt.DomainSnapshot"> + </interface> +</node> diff --git a/src/connect.c b/src/connect.c index f8f76a2..b40b0ba 100644 --- a/src/connect.c +++ b/src/connect.c @@ -1,5 +1,6 @@ #include "connect.h" #include "domain.h" +#include "domainsnapshot.h" #include "events.h" #include "interface.h" #include "network.h" @@ -2002,6 +2003,7 @@ virtDBusConnectFree(virtDBusConnect *connect) virtDBusConnectClose(connect, TRUE); g_free(connect->domainPath); + g_free(connect->domainSnapshotPath); g_free(connect->interfacePath); g_free(connect->networkPath); g_free(connect->nodeDevPath); @@ -2062,6 +2064,10 @@ virtDBusConnectNew(virtDBusConnect **connectp, if (error && *error) return; + virtDBusDomainSnapshotRegister(connect, error); + if (error && *error) + return; + virtDBusInterfaceRegister(connect, error); if (error && *error) return; diff --git a/src/connect.h b/src/connect.h index 829bd57..74c89cf 100644 --- a/src/connect.h +++ b/src/connect.h @@ -13,6 +13,7 @@ struct virtDBusConnect { const gchar *uri; const gchar *connectPath; gchar *domainPath; + gchar *domainSnapshotPath; gchar *interfacePath; gchar *networkPath; gchar *nodeDevPath; diff --git a/src/domainsnapshot.c b/src/domainsnapshot.c new file mode 100644 index 0000000..c523c9e --- /dev/null +++ b/src/domainsnapshot.c @@ -0,0 +1,75 @@ +#include "domainsnapshot.h" +#include "util.h" + +#include <libvirt/libvirt.h> + +static virtDBusGDBusPropertyTable virtDBusDomainSnapshotPropertyTable[] = { + { 0 } +}; + +static virtDBusGDBusMethodTable virtDBusDomainSnapshotMethodTable[] = { + { 0 } +}; + +static gchar ** +virtDBusDomainSnapshotEnumerate(gpointer userData) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomainPtr) domains = NULL; + gint numDoms = 0; + GPtrArray *list = NULL; + + if (!virtDBusConnectOpen(connect, NULL)) + return NULL; + + numDoms = virConnectListAllDomains(connect->connection, &domains, 0); + if (numDoms <= 0) + return NULL; + + list = g_ptr_array_new(); + + for (gint i = 0; i < numDoms; i++) { + g_autoptr(virDomainSnapshotPtr) domainSnapshots = NULL; + gint numSnaps; + + numSnaps = virDomainListAllSnapshots(domains[i], &domainSnapshots, 0); + if (numSnaps <= 0) + continue; + + for (gint j = 0; j < numSnaps; j++) { + gchar *snapPath = virtDBusUtilBusPathForVirDomainSnapshot(domains[i], + domainSnapshots[j], + connect->domainSnapshotPath); + g_ptr_array_add(list, snapPath); + } + } + + if (list->len > 0) + g_ptr_array_add(list, NULL); + + return (gchar **)g_ptr_array_free(list, FALSE); +} + +static GDBusInterfaceInfo *interfaceInfo = NULL; + +void +virtDBusDomainSnapshotRegister(virtDBusConnect *connect, + GError **error) +{ + connect->domainSnapshotPath = g_strdup_printf("%s/domainsnapshot", connect->connectPath); + + if (!interfaceInfo) { + interfaceInfo = virtDBusGDBusLoadIntrospectData(VIRT_DBUS_DOMAIN_SNAPSHOT_INTERFACE, + error); + if (!interfaceInfo) + return; + } + + virtDBusGDBusRegisterSubtree(connect->bus, + connect->domainSnapshotPath, + interfaceInfo, + virtDBusDomainSnapshotEnumerate, + virtDBusDomainSnapshotMethodTable, + virtDBusDomainSnapshotPropertyTable, + connect); +} diff --git a/src/domainsnapshot.h b/src/domainsnapshot.h new file mode 100644 index 0000000..7d8a938 --- /dev/null +++ b/src/domainsnapshot.h @@ -0,0 +1,9 @@ +#pragma once + +#include "connect.h" + +#define VIRT_DBUS_DOMAIN_SNAPSHOT_INTERFACE "org.libvirt.DomainSnapshot" + +void +virtDBusDomainSnapshotRegister(virtDBusConnect *connect, + GError **error); diff --git a/src/meson.build b/src/meson.build index de96596..1839c79 100644 --- a/src/meson.build +++ b/src/meson.build @@ -16,6 +16,7 @@ exe_libvirt_dbus = executable( [ 'connect.c', 'domain.c', + 'domainsnapshot.c', 'events.c', 'gdbus.c', 'interface.c', diff --git a/src/util.c b/src/util.c index 103bb29..71ffba5 100644 --- a/src/util.c +++ b/src/util.c @@ -3,6 +3,9 @@ #include <libvirt/virterror.h> #include <string.h> +/* result of strlen("_00000000_1111_2222_3333_444444444444") */ +#define VIRT_DBUS_UUID_LEN 37 + static const GDBusErrorEntry virtDBusUtilErrorEntries[] = { { VIRT_DBUS_ERROR_LIBVIRT, "org.libvirt.Error" }, }; @@ -279,6 +282,56 @@ virtDBusUtilVirDomainListFree(virDomainPtr *domains) g_free(domains); } +virDomainSnapshotPtr +virtDBusUtilVirDomainSnapshotFromBusPath(virConnectPtr connection, + const gchar *path, + const gchar *domainSnapshotPath) +{ + g_autofree gchar *uuidStr = NULL; + g_autofree gchar *snapshotName = NULL; + g_autoptr(virDomain) domain = NULL; + gsize prefixLen = strlen(domainSnapshotPath) + 1; + g_autofree gchar *tmp = g_strdup(path + prefixLen); + + tmp[VIRT_DBUS_UUID_LEN] = 0; + + uuidStr = virtDBusUtilDecodeUUID(tmp); + snapshotName = virtDBusUtilDecodeStr(tmp + VIRT_DBUS_UUID_LEN + 1); + + domain = virDomainLookupByUUIDString(connection, uuidStr); + + return virDomainSnapshotLookupByName(domain, snapshotName, 0); +} + +gchar * +virtDBusUtilBusPathForVirDomainSnapshot(virDomainPtr domain, + virDomainSnapshotPtr domainSnapshot, + const gchar *domainSnapshotPath) +{ + const gchar *snapshotName = NULL; + gchar uuidStr[VIR_UUID_STRING_BUFLEN] = ""; + g_autofree const gchar *encodedDomainNameStr = NULL; + g_autofree const gchar *encodedSnapshotNameStr = NULL; + + virDomainGetUUIDString(domain, uuidStr); + + snapshotName = virDomainSnapshotGetName(domainSnapshot); + encodedDomainNameStr = virtDBusUtilEncodeUUID(uuidStr); + encodedSnapshotNameStr = virtDBusUtilEncodeStr(snapshotName); + + return g_strdup_printf("%s/%s_%s", domainSnapshotPath, + encodedDomainNameStr, encodedSnapshotNameStr); +} + +void +virtDBusUtilVirDomainSnapshotListFree(virDomainSnapshotPtr* domainSnapshots) +{ + for (gint i = 0; domainSnapshots[i] != NULL; i++) + virDomainSnapshotFree(domainSnapshots[i]); + + g_free(domainSnapshots); +} + virInterfacePtr virtDBusUtilVirInterfaceFromBusPath(virConnectPtr connection, const gchar *path, diff --git a/src/util.h b/src/util.h index b05c2fc..c0b314d 100644 --- a/src/util.h +++ b/src/util.h @@ -65,6 +65,22 @@ G_DEFINE_AUTOPTR_CLEANUP_FUNC(virDomainPtr, virtDBusUtilVirDomainListFree); G_DEFINE_AUTOPTR_CLEANUP_FUNC(virDomainStatsRecordPtr, virDomainStatsRecordListFree); +virDomainSnapshotPtr +virtDBusUtilVirDomainSnapshotFromBusPath(virConnectPtr connection, + const gchar *path, + const gchar *domainSnapshotPath); + +gchar * +virtDBusUtilBusPathForVirDomainSnapshot(virDomainPtr domain, + virDomainSnapshotPtr domainSnapshot, + const gchar *domainSnapshotPath); + +void +virtDBusUtilVirDomainSnapshotListFree(virDomainSnapshotPtr* domainSnapshots); + +G_DEFINE_AUTOPTR_CLEANUP_FUNC(virDomainSnapshot, virDomainSnapshotFree); +G_DEFINE_AUTOPTR_CLEANUP_FUNC(virDomainSnapshotPtr, virtDBusUtilVirDomainSnapshotListFree); + virInterfacePtr virtDBusUtilVirInterfaceFromBusPath(virConnectPtr connection, const gchar *path, -- 2.21.0
Signed-off-by: Simon Kobyda <skobyda@redhat.com> --- data/org.libvirt.Domain.xml | 26 ++++ data/org.libvirt.DomainSnapshot.xml | 34 +++++ src/domain.c | 154 ++++++++++++++++++++ src/domainsnapshot.c | 216 ++++++++++++++++++++++++++++ tests/libvirttest.py | 12 ++ tests/meson.build | 1 + tests/test_domain.py | 8 ++ tests/test_snapshot.py | 45 ++++++ tests/xmldata.py | 6 + 9 files changed, 502 insertions(+) create mode 100755 tests/test_snapshot.py diff --git a/data/org.libvirt.Domain.xml b/data/org.libvirt.Domain.xml index b4ed495..3f108e7 100644 --- a/data/org.libvirt.Domain.xml +++ b/data/org.libvirt.Domain.xml @@ -350,6 +350,12 @@ <arg name="flags" type="u" direction="in"/> <arg name="ifaces" type="a(ssa(isu))" direction="out"/> </method> + <method name="ListDomainSnapshots"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainListAllSnapshots"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domainSnapshots" type="ao" direction="out"/> + </method> <method name="ManagedSave"> <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainManagedSave"/> @@ -589,6 +595,26 @@ value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainShutdownFlags"/> <arg name="flags" type="u" direction="in"/> </method> + <method name="SnapshotCurrent"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotCurrent"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domainSnapshot" type="o" direction="out"/> + </method> + <method name="SnapshotCreateXML"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotCreateXML"/> + <arg name="xml" type="s" direction="in"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domainSnapshot" type="o" direction="out"/> + </method> + <method name="SnapshotLookupByName"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotLookupByName"/> + <arg name="name" type="s" direction="in"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domainSnapshot" type="o" direction="out"/> + </method> <method name="Suspend"> <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainSuspend"/> diff --git a/data/org.libvirt.DomainSnapshot.xml b/data/org.libvirt.DomainSnapshot.xml index 8ba059f..9e9daac 100644 --- a/data/org.libvirt.DomainSnapshot.xml +++ b/data/org.libvirt.DomainSnapshot.xml @@ -3,5 +3,39 @@ <node name="/org/libvirt/domainsnapshot"> <interface name="org.libvirt.DomainSnapshot"> + <method name="Delete"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotDelete"/> + <arg name="flags" type="u" direction="in"/> + </method> + <method name="GetParent"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotGetParent"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domainSnapshot" type="o" direction="out"/> + </method> + <method name="GetXMLDesc"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotGetXMLDesc"/> + <arg name="flags" type="u" direction="in"/> + <arg name="xml" type="s" direction="out"/> + </method> + <method name="IsCurrent"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotIsCurrent"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domainSnapshot" type="b" direction="out"/> + </method> + <method name="ListChildren"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainSnapshotListAllChildren"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domainSnapshots" type="ao" direction="out"/> + </method> + <method name="Revert"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain-snapshot.html#virDomainRevertToSnapshot"/> + <arg name="flags" type="u" direction="in"/> + </method> </interface> </node> diff --git a/src/domain.c b/src/domain.c index 10fa8de..a656c6a 100644 --- a/src/domain.c +++ b/src/domain.c @@ -1857,6 +1857,49 @@ virtDBusDomainInjectNMI(GVariant *inArgs, virtDBusUtilSetLastVirtError(error); } +static void +virtDBusDomainListDomainSnapshots(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomain) domain = NULL; + g_autoptr(virDomainSnapshotPtr) domainSnapshots = NULL; + guint flags; + GVariantBuilder builder; + GVariant *gdomainSnapshots; + + g_variant_get(inArgs, "(u)", &flags); + + domain = virtDBusDomainGetVirDomain(connect, objectPath, error); + if (!domain) + return; + + if (!virtDBusConnectOpen(connect, error)) + return; + + if (virDomainListAllSnapshots(domain, &domainSnapshots, flags) < 0) + return virtDBusUtilSetLastVirtError(error); + + g_variant_builder_init(&builder, G_VARIANT_TYPE("ao")); + + for (gint i = 0; domainSnapshots[i]; i++) { + g_autofree gchar *path = NULL; + path = virtDBusUtilBusPathForVirDomainSnapshot(domain, + domainSnapshots[i], + connect->domainSnapshotPath); + + g_variant_builder_add(&builder, "o", path); + } + + gdomainSnapshots = g_variant_builder_end(&builder); + *outArgs = g_variant_new_tuple(&gdomainSnapshots, 1); +} + static void virtDBusDomainInterfaceAddresses(GVariant *inArgs, GUnixFDList *inFDs G_GNUC_UNUSED, @@ -2966,6 +3009,113 @@ virtDBusDomainShutdown(GVariant *inArgs, virtDBusUtilSetLastVirtError(error); } +static void +virtDBusDomainSnapshotCurrent(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autofree gchar *path = NULL; + g_autoptr(virDomain) domain = NULL; + g_autoptr(virDomainSnapshot) snapshot = NULL; + guint flags; + + g_variant_get(inArgs, "(u)", &flags); + + domain = virtDBusDomainGetVirDomain(connect, objectPath, error); + if (!domain) + return; + + if (!virtDBusConnectOpen(connect, error)) + return; + + snapshot = virDomainSnapshotCurrent(domain, flags); + if (!snapshot) + return virtDBusUtilSetLastVirtError(error); + + path = virtDBusUtilBusPathForVirDomainSnapshot(domain, + snapshot, + connect->domainSnapshotPath); + + *outArgs = g_variant_new("(o)", path); +} + +static void +virtDBusDomainSnapshotCreateXML(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autofree gchar *path = NULL; + g_autoptr(virDomain) domain = NULL; + g_autoptr(virDomainSnapshot) snapshot = NULL; + guint flags; + const gchar *xml; + + g_variant_get(inArgs, "(&su)", &xml, &flags); + + domain = virtDBusDomainGetVirDomain(connect, objectPath, error); + if (!domain) + return; + + if (!virtDBusConnectOpen(connect, error)) + return; + + snapshot = virDomainSnapshotCreateXML(domain, xml, flags); + if (!snapshot) + return virtDBusUtilSetLastVirtError(error); + + path = virtDBusUtilBusPathForVirDomainSnapshot(domain, + snapshot, + connect->domainSnapshotPath); + + *outArgs = g_variant_new("(o)", path); +} + +static void +virtDBusDomainSnapshotLookupByName(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autofree gchar *path = NULL; + g_autoptr(virDomain) domain = NULL; + g_autoptr(virDomainSnapshot) snapshot = NULL; + guint flags; + const gchar *name; + + g_variant_get(inArgs, "(&su)", &name, &flags); + + domain = virtDBusDomainGetVirDomain(connect, objectPath, error); + if (!domain) + return; + + if (!virtDBusConnectOpen(connect, error)) + return; + + snapshot = virDomainSnapshotLookupByName(domain, name, flags); + if (!snapshot) + return virtDBusUtilSetLastVirtError(error); + + path = virtDBusUtilBusPathForVirDomainSnapshot(domain, + snapshot, + connect->domainSnapshotPath); + + *outArgs = g_variant_new("(o)", path); +} + static void virtDBusDomainSuspend(GVariant *inArgs G_GNUC_UNUSED, GUnixFDList *inFDs G_GNUC_UNUSED, @@ -3095,6 +3245,7 @@ static virtDBusGDBusMethodTable virtDBusDomainMethodTable[] = { { "HasManagedSaveImage", virtDBusDomainHasManagedSaveImage }, { "InjectNMI", virtDBusDomainInjectNMI }, { "InterfaceAddresses", virtDBusDomainInterfaceAddresses }, + { "ListDomainSnapshots", virtDBusDomainListDomainSnapshots }, { "ManagedSave", virtDBusDomainManagedSave }, { "ManagedSaveRemove", virtDBusDomainManagedSaveRemove }, { "MemoryPeek", virtDBusDomainMemoryPeek }, @@ -3132,6 +3283,9 @@ static virtDBusGDBusMethodTable virtDBusDomainMethodTable[] = { { "SetSchedulerParameters", virtDBusDomainSetSchedulerParameters }, { "SetTime", virtDBusDomainSetTime }, { "SetUserPassword", virtDBusDomainSetUserPassword }, + { "SnapshotCurrent", virtDBusDomainSnapshotCurrent }, + { "SnapshotCreateXML", virtDBusDomainSnapshotCreateXML }, + { "SnapshotLookupByName", virtDBusDomainSnapshotLookupByName }, { "Shutdown", virtDBusDomainShutdown }, { "Suspend", virtDBusDomainSuspend }, { "Undefine", virtDBusDomainUndefine }, diff --git a/src/domainsnapshot.c b/src/domainsnapshot.c index c523c9e..f3571a1 100644 --- a/src/domainsnapshot.c +++ b/src/domainsnapshot.c @@ -1,13 +1,229 @@ #include "domainsnapshot.h" +#include "domain.h" #include "util.h" #include <libvirt/libvirt.h> +static virDomainSnapshotPtr +virtDBusDomainSnapshotGetVirDomainSnapshot(virtDBusConnect *connect, + const gchar *objectPath, + GError **error) +{ + virDomainSnapshotPtr domSnap; + + if (!virtDBusConnectOpen(connect, error)) + return NULL; + + domSnap = virtDBusUtilVirDomainSnapshotFromBusPath(connect->connection, + objectPath, + connect->domainSnapshotPath); + if (!domSnap) { + virtDBusUtilSetLastVirtError(error); + return NULL; + } + + return domSnap; +} + +static void +virtDBusDomainSnapshotDelete(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomainSnapshot) domainSnapshot = NULL; + guint flags; + + g_variant_get(inArgs, "(u)", &flags); + + domainSnapshot = virtDBusDomainSnapshotGetVirDomainSnapshot(connect, + objectPath, + error); + if (!domainSnapshot) + return; + + if (virDomainSnapshotDelete(domainSnapshot, flags) < 0) + return virtDBusUtilSetLastVirtError(error); +} + +static void +virtDBusDomainSnapshotGetParent(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomainSnapshot) domainSnapshot = NULL; + g_autoptr(virDomainSnapshot) parent = NULL; + guint flags; + g_autoptr(virDomain) domain = NULL; + g_autofree gchar *parentPath = NULL; + + g_variant_get(inArgs, "(u)", &flags); + + domainSnapshot = virtDBusDomainSnapshotGetVirDomainSnapshot(connect, + objectPath, + error); + if (!domainSnapshot) + return; + + parent = virDomainSnapshotGetParent(domainSnapshot, flags); + if (!parent) + return virtDBusUtilSetLastVirtError(error); + + domain = virDomainSnapshotGetDomain(domainSnapshot); + parentPath = virtDBusUtilBusPathForVirDomainSnapshot(domain, + parent, + connect->domainSnapshotPath); + + *outArgs = g_variant_new("(o)", parentPath); +} + +static void +virtDBusDomainSnapshotGetXMLDesc(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomainSnapshot) domainSnapshot = NULL; + guint flags; + g_autofree gchar *xml = NULL; + + g_variant_get(inArgs, "(u)", &flags); + + domainSnapshot = virtDBusDomainSnapshotGetVirDomainSnapshot(connect, + objectPath, + error); + if (!domainSnapshot) + return; + + xml = virDomainSnapshotGetXMLDesc(domainSnapshot, flags); + if (!xml) + return virtDBusUtilSetLastVirtError(error); + + *outArgs = g_variant_new("(s)", xml); +} + +static void +virtDBusDomainSnapshotIsCurrent(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomainSnapshot) domainSnapshot = NULL; + guint flags; + gint isCurrent; + + g_variant_get(inArgs, "(u)", &flags); + + domainSnapshot = virtDBusDomainSnapshotGetVirDomainSnapshot(connect, + objectPath, + error); + if (!domainSnapshot) + return; + + isCurrent = virDomainSnapshotIsCurrent(domainSnapshot, flags); + if (isCurrent < 0) + return virtDBusUtilSetLastVirtError(error); + + *outArgs = g_variant_new("(b)", !!isCurrent); +} + +static void +virtDBusDomainSnapshotListAllChildren(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomainSnapshot) domainSnapshot = NULL; + g_autoptr(virDomainSnapshotPtr) snaps = NULL; + guint flags; + GVariantBuilder builder; + GVariant *gdomainSnapshots; + g_autoptr(virDomain) domain = NULL; + + g_variant_get(inArgs, "(u)", &flags); + + domainSnapshot = virtDBusDomainSnapshotGetVirDomainSnapshot(connect, + objectPath, + error); + if (!domainSnapshot) + return; + + if (virDomainSnapshotListAllChildren(domainSnapshot, &snaps, flags) < 0) + return virtDBusUtilSetLastVirtError(error); + + g_variant_builder_init(&builder, G_VARIANT_TYPE("ao")); + + domain = virDomainSnapshotGetDomain(domainSnapshot); + for (gint i = 0; snaps[i]; i++) { + g_autofree gchar *path = NULL; + path = virtDBusUtilBusPathForVirDomainSnapshot(domain, + snaps[i], + connect->domainSnapshotPath); + + g_variant_builder_add(&builder, "o", path); + } + + gdomainSnapshots = g_variant_builder_end(&builder); + *outArgs = g_variant_new_tuple(&gdomainSnapshots, 1); +} + +static void +virtDBusDomainSnapshotRevert(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) +{ + virtDBusConnect *connect = userData; + g_autoptr(virDomainSnapshot) domainSnapshot = NULL; + guint flags; + + g_variant_get(inArgs, "(u)", &flags); + + domainSnapshot = virtDBusDomainSnapshotGetVirDomainSnapshot(connect, + objectPath, + error); + if (!domainSnapshot) + return; + + if (virDomainRevertToSnapshot(domainSnapshot, flags) < 0) + return virtDBusUtilSetLastVirtError(error); +} + static virtDBusGDBusPropertyTable virtDBusDomainSnapshotPropertyTable[] = { { 0 } }; static virtDBusGDBusMethodTable virtDBusDomainSnapshotMethodTable[] = { + { "Delete", virtDBusDomainSnapshotDelete }, + { "GetParent", virtDBusDomainSnapshotGetParent }, + { "GetXMLDesc", virtDBusDomainSnapshotGetXMLDesc }, + { "IsCurrent", virtDBusDomainSnapshotIsCurrent }, + { "ListChildren", virtDBusDomainSnapshotListAllChildren }, + { "Revert", virtDBusDomainSnapshotRevert }, { 0 } }; diff --git a/tests/libvirttest.py b/tests/libvirttest.py index a442196..dd181c2 100644 --- a/tests/libvirttest.py +++ b/tests/libvirttest.py @@ -112,6 +112,18 @@ class BaseTestClass(): """ return self.node_device_create() + @pytest.fixture + def snapshot_create(self): + """ Fixture to create simple domain snapshot on the test driver + + This fixture should be used in the setup of every test manipulating + with domain snaphots. + """ + _, test_domain = self.get_test_domain() + path = test_domain.SnapshotCreateXML(xmldata.minimal_snapshot_xml, 0) + obj = self.bus.get_object('org.libvirt', path) + return dbus.Interface(obj, 'org.libvirt.DomainSnapshot') + @pytest.fixture def storage_volume_create(self): """ Fixture to create dummy storage volume on the test driver diff --git a/tests/meson.build b/tests/meson.build index b6d4bd5..0ad5cdb 100644 --- a/tests/meson.build +++ b/tests/meson.build @@ -22,6 +22,7 @@ test('test_util', test_exec, suite: 'unit') python_tests = [ 'test_connect.py', 'test_domain.py', + 'test_snapshot.py', 'test_interface.py', 'test_network.py', 'test_nodedev.py', diff --git a/tests/test_domain.py b/tests/test_domain.py index b5879b4..624d25b 100755 --- a/tests/test_domain.py +++ b/tests/test_domain.py @@ -2,6 +2,7 @@ import dbus import libvirttest +import xmldata DBUS_EXCEPTION_MISSING_FUNCTION = 'this function is not supported by the connection driver' @@ -160,6 +161,13 @@ class TestDomain(libvirttest.BaseTestClass): pinInfo = domain.GetVcpuPinInfo(0) assert pinInfo == pinInfo_expected + def test_snapshot(self): + obj, domain = self.get_test_domain() + domain.SnapshotCreateXML(xmldata.minimal_snapshot_xml, 0) + assert isinstance(domain.SnapshotCurrent(0), dbus.ObjectPath) + assert isinstance(domain.SnapshotLookupByName("my_snapshot", 0), dbus.ObjectPath) + assert isinstance(domain.ListDomainSnapshots(0), dbus.Array) + if __name__ == '__main__': libvirttest.run() diff --git a/tests/test_snapshot.py b/tests/test_snapshot.py new file mode 100755 index 0000000..566f4a6 --- /dev/null +++ b/tests/test_snapshot.py @@ -0,0 +1,45 @@ +#!/usr/bin/env python3 + +import dbus +import libvirttest +import pytest + +EXCEPTION_NO_PARENT = 'does not have a parent' + + +@pytest.mark.usefixtures("snapshot_create") +class TestSnapshot(libvirttest.BaseTestClass): + """ Tests for methods and properties of the Snapshot snapshot + """ + + def test_snapshot_delete(self, snapshot_create): + snapshot_obj = snapshot_create + snapshot_obj.Delete(0) + + def test_snapshot_get_parent(self, snapshot_create): + snapshot_obj = snapshot_create + try: + snapshot_obj.GetParent(0) + except dbus.exceptions.DBusException as e: + if not any(EXCEPTION_NO_PARENT in arg for arg in e.args): + raise e + + def test_snapshot_get_xml(self, snapshot_create): + snapshot_obj = snapshot_create + assert isinstance(snapshot_obj.GetXMLDesc(0), dbus.String) + + def test_snapshot_get_is_current(self, snapshot_create): + snapshot_obj = snapshot_create + assert isinstance(snapshot_obj.IsCurrent(0), dbus.Boolean) + + def test_snapshot_list_children(self, snapshot_create): + snapshot_obj = snapshot_create + assert isinstance(snapshot_obj.ListChildren(0), dbus.Array) + + def test_snapshot_revert(self, snapshot_create): + snapshot_obj = snapshot_create + snapshot_obj.Revert(0) + + +if __name__ == '__main__': + libvirttest.run() diff --git a/tests/xmldata.py b/tests/xmldata.py index 8075052..0146ccf 100644 --- a/tests/xmldata.py +++ b/tests/xmldata.py @@ -54,6 +54,12 @@ minimal_node_device_xml = ''' </device> ''' +minimal_snapshot_xml = ''' +<domainsnapshot> + <name>my_snapshot</name> +</domainsnapshot> +''' + minimal_storage_pool_xml = ''' <pool type='dir'> <name>foo</name> -- 2.21.0
On Mon, Nov 04, 2019 at 12:24:07PM +0100, Simon Kobyda wrote:
Changes since v2: Implement and use virtDBusDomainSnapshotGetVirDomainSnapshot Add domain snapshot xml file to data/meson.build Fix flake8 style errors
Simon Kobyda (2): Introduce Domain Snapshot Interface Implement snapshots APIs
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
participants (2)
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Pavel Hrdina -
Simon Kobyda