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[libvirt] [RFC PATCH 0/4] block: file descriptor passing using -filefd and getfd_file
by Corey Bryant 23 May '12

23 May '12

libvirt's sVirt security driver provides SELinux MAC isolation for Qemu guest processes and their corresponding image files. In other words, sVirt uses SELinux to prevent a QEMU process from opening files that do not belong to it. sVirt provides this support by labeling guests and resources with security labels that are stored in file system extended attributes. Some file systems, such as NFS, do not support the extended attribute security namespace, and therefore cannot support sVirt isolation. A solution to this problem is to provide fd passing support, where libvirt opens files and passes file descriptors to QEMU. This, along with SELinux policy to prevent QEMU from opening files, can provide image file isolation for NFS files. This patch series adds the -filefd command-line option and the getfd_file monitor command. This will enable libvirt to open a file and push the corresponding filename and file descriptor to QEMU. When QEMU needs to "open" a file, it will first check if the file descriptor was passed by either of these methods before attempting to actually open the file. This series reuses the file_open function that Anthony Liguori <aliguori(a)us.ibm.com> created for the most recent fd passing prototype. It also reuses the test driver that Stefan Hajnoczi <stefanha(a)linux.vnet.ibm.com> created for that prototype, with several modifications. Corey Bryant (4): qemu-options: Add -filefd command line option qmp/hmp: Add getfd_file monitor command block: Enable QEMU to retrieve passed fd before attempting open Example -filefd and getfd_file server block.c | 31 +++++++ block/raw-posix.c | 20 +++--- block/raw-win32.c | 4 +- block/vdi.c | 4 +- block/vmdk.c | 21 ++--- block/vpc.c | 2 +- block/vvfat.c | 4 +- block_int.h | 12 +++ hmp-commands.hx | 17 ++++ monitor.c | 70 +++++++++++++++++ monitor.h | 3 + qemu-config.c | 17 ++++ qemu-config.h | 1 + qemu-options.hx | 17 ++++ qemu-tool.c | 5 + qmp-commands.hx | 30 +++++++ test-fd-passing.c | 224 +++++++++++++++++++++++++++++++++++++++++++++++++++++ vl.c | 6 ++ 18 files changed, 459 insertions(+), 29 deletions(-) create mode 100644 test-fd-passing.c -- 1.7.7.6

5 33

[libvirt] suggestions on snapshotting testing
by Kashyap Chamarthy 23 May '12

23 May '12

Hi, I'm willing to test/understand snapshotting in libivrt/qemu in a much better way. I can spend 10-ish hours or so a week. I see a lot of work going on the snapshot front, upstream qemu/libvirt. I'm currently following/reading: ---------- http://wiki.qemu.org/Features/SnapshotsMultipleDevices http://wiki.qemu.org/Features/LiveBlockMigration http://wiki.libvirt.org/page/Snapshots http://libvirt.org/formatsnapshot.html ------------ Am I going the right way? Once I get a decent hang of things, I was wondering I could start writing some tests. What do you advice? -- /kashyap

2 4

[libvirt] [libvirt-glib 1/2] Add gvir_config_object_get_attribute_uint64()
by Zeeshan Ali (Khattak) 23 May '12

23 May '12

From: "Zeeshan Ali (Khattak)" <zeeshanak(a)gnome.org> Another internal libvirt-gconfig helper to get unint64 XML attributes. --- libvirt-gconfig/libvirt-gconfig-object-private.h | 4 ++++ libvirt-gconfig/libvirt-gconfig-object.c | 15 +++++++++++++++ 2 files changed, 19 insertions(+), 0 deletions(-) diff --git a/libvirt-gconfig/libvirt-gconfig-object-private.h b/libvirt-gconfig/libvirt-gconfig-object-private.h index b3798c0..830517c 100644 --- a/libvirt-gconfig/libvirt-gconfig-object-private.h +++ b/libvirt-gconfig/libvirt-gconfig-object-private.h @@ -42,6 +42,10 @@ gint gvir_config_object_get_node_content_genum(GVirConfigObject *object, const char *gvir_config_object_get_attribute(GVirConfigObject *object, const char *node_name, const char *attr_name); +guint64 gvir_config_object_get_attribute_uint64(GVirConfigObject *object, + const char *node_name, + const char *attr_name, + guint64 default_value); gint gvir_config_object_get_attribute_genum(GVirConfigObject *object, const char *node_name, const char *attr_name, diff --git a/libvirt-gconfig/libvirt-gconfig-object.c b/libvirt-gconfig/libvirt-gconfig-object.c index 1474393..a7352a5 100644 --- a/libvirt-gconfig/libvirt-gconfig-object.c +++ b/libvirt-gconfig/libvirt-gconfig-object.c @@ -644,6 +644,21 @@ gvir_config_object_get_attribute_genum(GVirConfigObject *object, return value; } +G_GNUC_INTERNAL guint64 +gvir_config_object_get_attribute_uint64(GVirConfigObject *object, + const char *node_name, + const char *attr_name, + guint64 default_value) +{ + const char *str; + + str = gvir_config_object_get_attribute(object, node_name, attr_name); + if (str == NULL) + return default_value; + + return g_ascii_strtoull(str, NULL, 0); +} + GVirConfigObject *gvir_config_object_new_from_xml(GType type, const char *root_name, const char *schema, -- 1.7.7.6

2 3

[libvirt] [PATCH] Remove more bogus systemd service dependencies
by Daniel P. Berrange 23 May '12

23 May '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Adding syslog.target is obsolete, avahi.target does not exist and dbus.target is also obsolete --- daemon/libvirtd.service.in | 3 --- 1 file changed, 3 deletions(-) diff --git a/daemon/libvirtd.service.in b/daemon/libvirtd.service.in index 64dbd27..33724ee 100644 --- a/daemon/libvirtd.service.in +++ b/daemon/libvirtd.service.in @@ -5,9 +5,6 @@ [Unit] Description=Virtualization daemon -After=syslog.target -After=avahi.target -After=dbus.target Before=libvirt-guests.service [Service] -- 1.7.10.1

2 1

[libvirt] [PATCH 0/3 v4] use qemu's dump-guest-meory when vm uses host device
by Wen Congyang 23 May '12

23 May '12

Currently, we use migrate to dump guest's memory. There is one restriction in migrate command: the device's status should be stored in qemu because the device's status should be passed to target machine. If we passthrough a host device to guest, the device's status is stored in the real device. So migrate command will fail. We usually use dump when guest is panicked. So there is no need to store device's status in the vmcore. qemu will have a new monitor command dump-guest-memory to dump guest memory, but it doesn't support async now(it will support later when the common async API is implemented). So I use dump-guest-memory only when the guest uses host device in this patchset. Note: the patchset for qemu is still queued. Luiz has acked, but he said he does not wait an ACK from Jan and/or Anthony. Changes from v3 to v4: 1. allow the user to specify the core file's format Changes from v2 to v3: 1. qemu supports the fd that is associated with a pipe, socket, or FIFO. So pass a pipe fd to qemu and O_DIRECT can work now. Change from v1 to v2: 1. remove the implemention for text mode. Wen Congyang (3): qemu: implement qemu's dump-guest-memory qemu: allow the client to choose the vmcore's format virsh: allow the user to specify vmcore's format include/libvirt/libvirt.h.in | 1 + src/qemu/qemu_domain.c | 1 + src/qemu/qemu_domain.h | 1 + src/qemu/qemu_driver.c | 54 +++++++++++++++++++++++++++++++---------- src/qemu/qemu_monitor.c | 38 +++++++++++++++++++++++++++++ src/qemu/qemu_monitor.h | 12 +++++++++ src/qemu/qemu_monitor_json.c | 35 +++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 6 ++++ tools/virsh.c | 3 ++ tools/virsh.pod | 5 +++- 10 files changed, 142 insertions(+), 14 deletions(-)

2 7

[libvirt] [libvirt-glib] Check arguments to public libvirt-gobject methods
by Christophe Fergeau 23 May '12

23 May '12

Some public methods in libvirt-gobject don't have g_return_if_fail checks on their arguments. It happens that GNOME Boxes tries to call gvir_connection_find_storage_pool_by_name with a NULL GVirConnection causing a crash https://bugzilla.gnome.org/show_bug.cgi?id=676216 While GNOME Boxes needs to be fixed not to pass an invalid value to this function, it's better if libvirt-object sanity checks the argument it is passed by the caller before using them. In this commit, I've went over all libvirt-gobject public functions to add g_return_if_fail checks where needed. --- libvirt-gobject/libvirt-gobject-connection.c | 122 +++++++++++++++++--- libvirt-gobject/libvirt-gobject-domain-device.c | 4 + libvirt-gobject/libvirt-gobject-domain-disk.c | 1 + libvirt-gobject/libvirt-gobject-domain-interface.c | 1 + libvirt-gobject/libvirt-gobject-domain-snapshot.c | 7 +- libvirt-gobject/libvirt-gobject-domain.c | 70 +++++++++-- libvirt-gobject/libvirt-gobject-interface.c | 13 ++- libvirt-gobject/libvirt-gobject-manager.c | 27 +++-- libvirt-gobject/libvirt-gobject-network-filter.c | 14 ++- libvirt-gobject/libvirt-gobject-network.c | 13 ++- libvirt-gobject/libvirt-gobject-node-device.c | 14 ++- libvirt-gobject/libvirt-gobject-secret.c | 6 +- libvirt-gobject/libvirt-gobject-storage-pool.c | 61 ++++++++-- libvirt-gobject/libvirt-gobject-storage-vol.c | 33 ++++-- libvirt-gobject/libvirt-gobject-stream.c | 6 + 15 files changed, 321 insertions(+), 71 deletions(-) diff --git a/libvirt-gobject/libvirt-gobject-connection.c b/libvirt-gobject/libvirt-gobject-connection.c index b12669d..3a99034 100644 --- a/libvirt-gobject/libvirt-gobject-connection.c +++ b/libvirt-gobject/libvirt-gobject-connection.c @@ -407,7 +407,14 @@ gboolean gvir_connection_open(GVirConnection *conn, GCancellable *cancellable, GError **err) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; + + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), FALSE); + g_return_val_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable), + FALSE); + g_return_val_if_fail((err == NULL) || (*err == NULL), FALSE); + + priv = conn->priv; if (g_cancellable_set_error_if_cancelled(cancellable, err)) return FALSE; @@ -486,6 +493,9 @@ void gvir_connection_open_async(GVirConnection *conn, { GSimpleAsyncResult *res; + g_return_if_fail(GVIR_IS_CONNECTION(conn)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + res = g_simple_async_result_new(G_OBJECT(conn), callback, user_data, @@ -521,8 +531,12 @@ gboolean gvir_connection_open_finish(GVirConnection *conn, gboolean gvir_connection_is_open(GVirConnection *conn) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; gboolean open = TRUE; + + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), FALSE); + + priv = conn->priv; g_mutex_lock(priv->lock); if (!priv->conn) open = FALSE; @@ -532,7 +546,12 @@ gboolean gvir_connection_is_open(GVirConnection *conn) void gvir_connection_close(GVirConnection *conn) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; + + g_return_if_fail(GVIR_IS_CONNECTION(conn)); + + priv = conn->priv; + g_debug("Close GVirConnection=%p", conn); g_mutex_lock(priv->lock); @@ -613,7 +632,7 @@ gboolean gvir_connection_fetch_domains(GVirConnection *conn, GCancellable *cancellable, GError **err) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GHashTable *doms; gchar **inactive = NULL; gint ninactive = 0; @@ -624,6 +643,12 @@ gboolean gvir_connection_fetch_domains(GVirConnection *conn, virConnectPtr vconn = NULL; GError *lerr = NULL; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), FALSE); + g_return_val_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable), + FALSE); + g_return_val_if_fail((err == NULL) || (*err == NULL), FALSE); + + priv = conn->priv; g_mutex_lock(priv->lock); if (!priv->conn) { g_set_error_literal(err, GVIR_CONNECTION_ERROR, @@ -742,7 +767,7 @@ gboolean gvir_connection_fetch_storage_pools(GVirConnection *conn, GCancellable *cancellable, GError **err) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GHashTable *pools; gchar **inactive = NULL; gint ninactive = 0; @@ -753,6 +778,12 @@ gboolean gvir_connection_fetch_storage_pools(GVirConnection *conn, virConnectPtr vconn = NULL; GError *lerr = NULL; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), FALSE); + g_return_val_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable), + FALSE); + g_return_val_if_fail((err == NULL) || (*err == NULL), FALSE); + + priv = conn->priv; g_mutex_lock(priv->lock); if (!priv->conn) { g_set_error_literal(err, GVIR_CONNECTION_ERROR, @@ -891,6 +922,9 @@ void gvir_connection_fetch_domains_async(GVirConnection *conn, { GSimpleAsyncResult *res; + g_return_if_fail(GVIR_IS_CONNECTION(conn)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + res = g_simple_async_result_new(G_OBJECT(conn), callback, user_data, @@ -950,6 +984,9 @@ void gvir_connection_fetch_storage_pools_async(GVirConnection *conn, { GSimpleAsyncResult *res; + g_return_if_fail(GVIR_IS_CONNECTION(conn)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + res = g_simple_async_result_new(G_OBJECT(conn), callback, user_data, @@ -983,8 +1020,9 @@ gboolean gvir_connection_fetch_storage_pools_finish(GVirConnection *conn, const gchar *gvir_connection_get_uri(GVirConnection *conn) { - GVirConnectionPrivate *priv = conn->priv; - return priv->uri; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + + return conn->priv->uri; } static void gvir_domain_ref(gpointer obj, gpointer ignore G_GNUC_UNUSED) @@ -1004,9 +1042,12 @@ static void gvir_domain_ref(gpointer obj, gpointer ignore G_GNUC_UNUSED) */ GList *gvir_connection_get_domains(GVirConnection *conn) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GList *domains = NULL; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + + priv = conn->priv; g_mutex_lock(priv->lock); if (priv->domains != NULL) { domains = g_hash_table_get_values(priv->domains); @@ -1030,9 +1071,12 @@ GList *gvir_connection_get_domains(GVirConnection *conn) */ GList *gvir_connection_get_storage_pools(GVirConnection *conn) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GList *pools = NULL; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + + priv = conn->priv; g_mutex_lock(priv->lock); if (priv->pools != NULL) { pools = g_hash_table_get_values(priv->pools); @@ -1054,8 +1098,13 @@ GList *gvir_connection_get_storage_pools(GVirConnection *conn) GVirDomain *gvir_connection_get_domain(GVirConnection *conn, const gchar *uuid) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GVirDomain *dom; + + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail(uuid != NULL, NULL); + + priv = conn->priv; g_mutex_lock(priv->lock); dom = g_hash_table_lookup(priv->domains, uuid); if (dom) @@ -1075,9 +1124,13 @@ GVirDomain *gvir_connection_get_domain(GVirConnection *conn, GVirStoragePool *gvir_connection_get_storage_pool(GVirConnection *conn, const gchar *uuid) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GVirStoragePool *pool; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail(uuid != NULL, NULL); + + priv = conn->priv; g_mutex_lock(priv->lock); pool = g_hash_table_lookup(priv->pools, uuid); if (pool) @@ -1098,10 +1151,13 @@ GVirStoragePool *gvir_connection_get_storage_pool(GVirConnection *conn, GVirDomain *gvir_connection_find_domain_by_id(GVirConnection *conn, gint id) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GHashTableIter iter; gpointer key, value; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + + priv = conn->priv; g_mutex_lock(priv->lock); g_hash_table_iter_init(&iter, priv->domains); @@ -1132,10 +1188,14 @@ GVirDomain *gvir_connection_find_domain_by_id(GVirConnection *conn, GVirDomain *gvir_connection_find_domain_by_name(GVirConnection *conn, const gchar *name) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GHashTableIter iter; gpointer key, value; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail(name != NULL, NULL); + + priv = conn->priv; g_mutex_lock(priv->lock); g_hash_table_iter_init(&iter, priv->domains); @@ -1168,10 +1228,14 @@ GVirDomain *gvir_connection_find_domain_by_name(GVirConnection *conn, GVirStoragePool *gvir_connection_find_storage_pool_by_name(GVirConnection *conn, const gchar *name) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; GHashTableIter iter; gpointer key, value; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail(name != NULL, NULL); + + priv = conn->priv; g_mutex_lock(priv->lock); g_hash_table_iter_init(&iter, priv->pools); @@ -1253,12 +1317,17 @@ GVirDomain *gvir_connection_create_domain(GVirConnection *conn, { gchar *xml; virDomainPtr handle; - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; + + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail(GVIR_CONFIG_IS_DOMAIN(conf), NULL); + g_return_val_if_fail((err == NULL) || (*err == NULL), NULL); xml = gvir_config_object_to_xml(GVIR_CONFIG_OBJECT(conf)); g_return_val_if_fail(xml != NULL, NULL); + priv = conn->priv; handle = virDomainDefineXML(priv->conn, xml); g_free(xml); if (!handle) { @@ -1302,12 +1371,17 @@ GVirDomain *gvir_connection_start_domain(GVirConnection *conn, { gchar *xml; virDomainPtr handle; - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; + + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail(GVIR_CONFIG_IS_DOMAIN(conf), NULL); + g_return_val_if_fail((err == NULL) || (*err == NULL), NULL); xml = gvir_config_object_to_xml(GVIR_CONFIG_OBJECT(conf)); g_return_val_if_fail(xml != NULL, NULL); + priv = conn->priv; handle = virDomainCreateXML(priv->conn, xml, flags); g_free(xml); if (!handle) { @@ -1350,12 +1424,17 @@ GVirStoragePool *gvir_connection_create_storage_pool GError **err) { const gchar *xml; virStoragePoolPtr handle; - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; + + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail(GVIR_CONFIG_IS_STORAGE_POOL(conf), NULL); + g_return_val_if_fail((err == NULL) || (*err == NULL), NULL); xml = gvir_config_object_to_xml(GVIR_CONFIG_OBJECT(conf)); g_return_val_if_fail(xml != NULL, NULL); + priv = conn->priv; if (!(handle = virStoragePoolDefineXML(priv->conn, xml, flags))) { gvir_set_error_literal(err, GVIR_CONNECTION_ERROR, flags, @@ -1390,10 +1469,14 @@ GVirStoragePool *gvir_connection_create_storage_pool GVirNodeInfo *gvir_connection_get_node_info(GVirConnection *conn, GError **err) { - GVirConnectionPrivate *priv = conn->priv; + GVirConnectionPrivate *priv; virNodeInfo info; GVirNodeInfo *ret; + g_return_val_if_fail(GVIR_IS_CONNECTION(conn), NULL); + g_return_val_if_fail((err == NULL) || (*err == NULL), NULL); + + priv = conn->priv; if (virNodeGetInfo(priv->conn, &info) < 0) { gvir_set_error_literal(err, GVIR_CONNECTION_ERROR, 0, @@ -1480,6 +1563,9 @@ void gvir_connection_get_capabilities_async(GVirConnection *conn, { GSimpleAsyncResult *res; + g_return_if_fail(GVIR_IS_CONNECTION(conn)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + res = g_simple_async_result_new(G_OBJECT(conn), callback, user_data, diff --git a/libvirt-gobject/libvirt-gobject-domain-device.c b/libvirt-gobject/libvirt-gobject-domain-device.c index 9a65468..f2f3dfc 100644 --- a/libvirt-gobject/libvirt-gobject-domain-device.c +++ b/libvirt-gobject/libvirt-gobject-domain-device.c @@ -167,6 +167,8 @@ virDomainPtr gvir_domain_device_get_domain_handle(GVirDomainDevice *self) */ GVirDomain *gvir_domain_device_get_domain(GVirDomainDevice *device) { + g_return_val_if_fail(GVIR_IS_DOMAIN_DEVICE(device), NULL); + return g_object_ref (device->priv->domain); } @@ -180,6 +182,8 @@ GVirDomain *gvir_domain_device_get_domain(GVirDomainDevice *device) */ GVirConfigDomainDevice *gvir_domain_device_get_config(GVirDomainDevice *device) { + g_return_val_if_fail(GVIR_IS_DOMAIN_DEVICE(device), NULL); + return g_object_ref (device->priv->config); } diff --git a/libvirt-gobject/libvirt-gobject-domain-disk.c b/libvirt-gobject/libvirt-gobject-domain-disk.c index 607e26c..46b47fd 100644 --- a/libvirt-gobject/libvirt-gobject-domain-disk.c +++ b/libvirt-gobject/libvirt-gobject-domain-disk.c @@ -124,6 +124,7 @@ GVirDomainDiskStats *gvir_domain_disk_get_stats(GVirDomainDisk *self, GError **e const gchar *path; g_return_val_if_fail(GVIR_IS_DOMAIN_DISK(self), NULL); + g_return_val_if_fail((err == NULL) || (*err == NULL), NULL); handle = gvir_domain_device_get_domain_handle(GVIR_DOMAIN_DEVICE(self)); path = gvir_domain_disk_get_path (self); diff --git a/libvirt-gobject/libvirt-gobject-domain-interface.c b/libvirt-gobject/libvirt-gobject-domain-interface.c index 7087cbc..3ae9a46 100644 --- a/libvirt-gobject/libvirt-gobject-domain-interface.c +++ b/libvirt-gobject/libvirt-gobject-domain-interface.c @@ -126,6 +126,7 @@ GVirDomainInterfaceStats *gvir_domain_interface_get_stats(GVirDomainInterface *s const gchar *path; g_return_val_if_fail(GVIR_IS_DOMAIN_INTERFACE(self), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); handle = gvir_domain_device_get_domain_handle(GVIR_DOMAIN_DEVICE(self)); path = gvir_domain_interface_get_path (self); diff --git a/libvirt-gobject/libvirt-gobject-domain-snapshot.c b/libvirt-gobject/libvirt-gobject-domain-snapshot.c index d06d4d5..11a073c 100644 --- a/libvirt-gobject/libvirt-gobject-domain-snapshot.c +++ b/libvirt-gobject/libvirt-gobject-domain-snapshot.c @@ -161,6 +161,7 @@ G_DEFINE_BOXED_TYPE(GVirDomainSnapshotHandle, gvir_domain_snapshot_handle, const gchar *gvir_domain_snapshot_get_name(GVirDomainSnapshot *snapshot) { + g_return_val_if_fail(GVIR_IS_DOMAIN_SNAPSHOT(snapshot), NULL); #if 0 GVirDomainSnapshotPrivate *priv = snapshot->priv; const char *name; @@ -194,9 +195,13 @@ GVirConfigDomainSnapshot *gvir_domain_snapshot_get_config guint flags, GError **err) { - GVirDomainSnapshotPrivate *priv = snapshot->priv; + GVirDomainSnapshotPrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_DOMAIN_SNAPSHOT(snapshot), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = snapshot->priv; if (!(xml = virDomainSnapshotGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_DOMAIN_SNAPSHOT_ERROR, 0, diff --git a/libvirt-gobject/libvirt-gobject-domain.c b/libvirt-gobject/libvirt-gobject-domain.c index 9be568a..59af63f 100644 --- a/libvirt-gobject/libvirt-gobject-domain.c +++ b/libvirt-gobject/libvirt-gobject-domain.c @@ -274,9 +274,12 @@ G_DEFINE_BOXED_TYPE(GVirDomainInfo, gvir_domain_info, const gchar *gvir_domain_get_name(GVirDomain *dom) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; const char *name; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), NULL); + + priv = dom->priv; if (!(name = virDomainGetName(priv->handle))) { g_warning("Failed to get domain name on %p", priv->handle); return NULL; @@ -296,9 +299,13 @@ const gchar *gvir_domain_get_uuid(GVirDomain *dom) gint gvir_domain_get_id(GVirDomain *dom, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; gint ret; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), -1); + g_return_val_if_fail(err == NULL || *err == NULL, -1); + + priv = dom->priv; if ((ret = virDomainGetID(priv->handle)) < 0) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, 0, @@ -317,9 +324,13 @@ gboolean gvir_domain_start(GVirDomain *dom, guint flags, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; int ret; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + + priv = dom->priv; if (flags) ret = virDomainCreateWithFlags(priv->handle, flags); else @@ -344,8 +355,12 @@ gboolean gvir_domain_start(GVirDomain *dom, gboolean gvir_domain_resume(GVirDomain *dom, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + + priv = dom->priv; if (virDomainResume(priv->handle) < 0) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, 0, @@ -365,9 +380,13 @@ gboolean gvir_domain_stop(GVirDomain *dom, guint flags, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; int ret; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + + priv = dom->priv; if (flags) ret = virDomainDestroyFlags(priv->handle, flags); else @@ -391,9 +410,13 @@ gboolean gvir_domain_delete(GVirDomain *dom, guint flags, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; int ret; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + + priv = dom->priv; if (flags) ret = virDomainUndefineFlags(priv->handle, flags); else @@ -417,8 +440,12 @@ gboolean gvir_domain_shutdown(GVirDomain *dom, guint flags G_GNUC_UNUSED, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; + + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + priv = dom->priv; if (virDomainShutdown(priv->handle) < 0) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, 0, @@ -438,8 +465,12 @@ gboolean gvir_domain_reboot(GVirDomain *dom, guint flags, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; + + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + priv = dom->priv; if (virDomainReboot(priv->handle, flags) < 0) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, 0, @@ -462,9 +493,13 @@ GVirConfigDomain *gvir_domain_get_config(GVirDomain *dom, guint flags, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = dom->priv; if (!(xml = virDomainGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, 0, @@ -501,12 +536,13 @@ gboolean gvir_domain_set_config(GVirDomain *domain, virConnectPtr conn; virDomainPtr handle; gchar uuid[VIR_UUID_STRING_BUFLEN]; - GVirDomainPrivate *priv = domain->priv; + GVirDomainPrivate *priv; g_return_val_if_fail(GVIR_IS_DOMAIN (domain), FALSE); g_return_val_if_fail(GVIR_CONFIG_IS_DOMAIN (conf), FALSE); g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + priv = domain->priv; xml = gvir_config_object_to_xml(GVIR_CONFIG_OBJECT(conf)); g_return_val_if_fail(xml != NULL, FALSE); @@ -556,10 +592,14 @@ gboolean gvir_domain_set_config(GVirDomain *domain, GVirDomainInfo *gvir_domain_get_info(GVirDomain *dom, GError **err) { - GVirDomainPrivate *priv = dom->priv; + GVirDomainPrivate *priv; virDomainInfo info; GVirDomainInfo *ret; + g_return_val_if_fail(GVIR_IS_DOMAIN(dom), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = dom->priv; if (virDomainGetInfo(priv->handle, &info) < 0) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, 0, @@ -613,6 +653,7 @@ void gvir_domain_get_info_async(GVirDomain *dom, GSimpleAsyncResult *res; g_return_if_fail(GVIR_IS_DOMAIN(dom)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); res = g_simple_async_result_new(G_OBJECT(dom), callback, @@ -679,6 +720,7 @@ gchar *gvir_domain_screenshot(GVirDomain *dom, g_return_val_if_fail(GVIR_IS_DOMAIN(dom), NULL); g_return_val_if_fail(GVIR_IS_STREAM(stream), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); priv = dom->priv; g_object_get(stream, "handle", &st, NULL); @@ -725,6 +767,7 @@ gboolean gvir_domain_open_console(GVirDomain *dom, g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); g_return_val_if_fail(GVIR_IS_STREAM(stream), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); priv = dom->priv; g_object_get(stream, "handle", &st, NULL); @@ -769,6 +812,7 @@ gboolean gvir_domain_open_graphics(GVirDomain *dom, gboolean ret = FALSE; g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); priv = dom->priv; @@ -804,6 +848,7 @@ gboolean gvir_domain_suspend (GVirDomain *dom, gboolean ret = FALSE; g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); if (virDomainSuspend(dom->priv->handle) < 0) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, @@ -834,6 +879,7 @@ gboolean gvir_domain_save (GVirDomain *dom, GError **err) { g_return_val_if_fail(GVIR_IS_DOMAIN(dom), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); if (virDomainManagedSave(dom->priv->handle, flags) < 0) { gvir_set_error_literal(err, GVIR_DOMAIN_ERROR, @@ -889,6 +935,7 @@ void gvir_domain_save_async (GVirDomain *dom, DomainSaveData *data; g_return_if_fail(GVIR_IS_DOMAIN(dom)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); data = g_slice_new0(DomainSaveData); data->flags = flags; @@ -923,6 +970,7 @@ gboolean gvir_domain_save_finish (GVirDomain *dom, g_return_val_if_fail(g_simple_async_result_is_valid(result, G_OBJECT(dom), gvir_domain_save_async), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); if (g_simple_async_result_propagate_error(G_SIMPLE_ASYNC_RESULT(result), err)) return FALSE; diff --git a/libvirt-gobject/libvirt-gobject-interface.c b/libvirt-gobject/libvirt-gobject-interface.c index 883cf92..ecabb41 100644 --- a/libvirt-gobject/libvirt-gobject-interface.c +++ b/libvirt-gobject/libvirt-gobject-interface.c @@ -159,11 +159,12 @@ G_DEFINE_BOXED_TYPE(GVirInterfaceHandle, gvir_interface_handle, const gchar *gvir_interface_get_name(GVirInterface *iface) { - GVirInterfacePrivate *priv = iface->priv; const char *name; - if (!(name = virInterfaceGetName(priv->handle))) { - g_warning("Failed to get interface name on %p", priv->handle); + g_return_val_if_fail(GVIR_IS_INTERFACE(iface), NULL); + + if (!(name = virInterfaceGetName(iface->priv->handle))) { + g_warning("Failed to get interface name on %p", iface->priv->handle); return NULL; } @@ -184,9 +185,13 @@ GVirConfigInterface *gvir_interface_get_config(GVirInterface *iface, guint flags, GError **err) { - GVirInterfacePrivate *priv = iface->priv; + GVirInterfacePrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_INTERFACE(iface), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = iface->priv; if (!(xml = virInterfaceGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_INTERFACE_ERROR, 0, diff --git a/libvirt-gobject/libvirt-gobject-manager.c b/libvirt-gobject/libvirt-gobject-manager.c index c44e711..d0a2839 100644 --- a/libvirt-gobject/libvirt-gobject-manager.c +++ b/libvirt-gobject/libvirt-gobject-manager.c @@ -131,8 +131,12 @@ GVirManager *gvir_manager_new(void) void gvir_manager_add_connection(GVirManager *man, GVirConnection *conn) { - GVirManagerPrivate *priv = man->priv; + GVirManagerPrivate *priv; + + g_return_if_fail(GVIR_IS_MANAGER(man)); + g_return_if_fail(GVIR_IS_CONNECTION(conn)); + priv = man->priv; g_mutex_lock(priv->lock); g_object_ref(conn); priv->connections = g_list_append(priv->connections, conn); @@ -147,8 +151,12 @@ void gvir_manager_add_connection(GVirManager *man, void gvir_manager_remove_connection(GVirManager *man, GVirConnection *conn) { - GVirManagerPrivate *priv = man->priv; + GVirManagerPrivate *priv; + + g_return_if_fail(GVIR_IS_MANAGER(man)); + g_return_if_fail(GVIR_IS_CONNECTION(conn)); + priv = man->priv; g_mutex_lock(priv->lock); priv->connections = g_list_remove(priv->connections, conn); g_mutex_unlock(priv->lock); @@ -167,16 +175,18 @@ void gvir_manager_remove_connection(GVirManager *man, */ GList *gvir_manager_get_connections(GVirManager *man) { - GVirManagerPrivate *priv = man->priv; + GList *tmp; - GList *tmp = priv->connections; + g_return_val_if_fail(GVIR_IS_MANAGER(man), NULL); + + tmp = man->priv->connections; while (tmp) { GVirConnection *conn = tmp->data; g_object_ref(conn); tmp = tmp->next; } - return g_list_copy(priv->connections); + return g_list_copy(man->priv->connections); } @@ -190,9 +200,12 @@ GList *gvir_manager_get_connections(GVirManager *man) GVirConnection *gvir_manager_find_connection_by_uri(GVirManager *man, const gchar *uri) { - GVirManagerPrivate *priv = man->priv; + GList *tmp; - GList *tmp = priv->connections; + g_return_val_if_fail(GVIR_IS_MANAGER(man), NULL); + g_return_val_if_fail(uri != NULL, NULL); + + tmp = man->priv->connections; while (tmp) { GVirConnection *conn = tmp->data; if (g_strcmp0(gvir_connection_get_uri(conn), uri) == 0) diff --git a/libvirt-gobject/libvirt-gobject-network-filter.c b/libvirt-gobject/libvirt-gobject-network-filter.c index b3db236..00b1ed2 100644 --- a/libvirt-gobject/libvirt-gobject-network-filter.c +++ b/libvirt-gobject/libvirt-gobject-network-filter.c @@ -182,11 +182,13 @@ G_DEFINE_BOXED_TYPE(GVirNetworkFilterHandle, gvir_network_filter_handle, const gchar *gvir_network_filter_get_name(GVirNetworkFilter *filter) { - GVirNetworkFilterPrivate *priv = filter->priv; const char *name; - if (!(name = virNWFilterGetName(priv->handle))) { - g_warning("Failed to get network_filter name on %p", priv->handle); + g_return_val_if_fail(GVIR_IS_NETWORK_FILTER(filter), NULL); + + if (!(name = virNWFilterGetName(filter->priv->handle))) { + g_warning("Failed to get network_filter name on %p", + filter->priv->handle); return NULL; } @@ -217,9 +219,13 @@ GVirConfigNetworkFilter *gvir_network_filter_get_config guint flags, GError **err) { - GVirNetworkFilterPrivate *priv = filter->priv; + GVirNetworkFilterPrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_NETWORK_FILTER(filter), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = filter->priv; if (!(xml = virNWFilterGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_NETWORK_FILTER_ERROR, 0, diff --git a/libvirt-gobject/libvirt-gobject-network.c b/libvirt-gobject/libvirt-gobject-network.c index 17378ec..9625ece 100644 --- a/libvirt-gobject/libvirt-gobject-network.c +++ b/libvirt-gobject/libvirt-gobject-network.c @@ -180,11 +180,12 @@ G_DEFINE_BOXED_TYPE(GVirNetworkHandle, gvir_network_handle, const gchar *gvir_network_get_name(GVirNetwork *network) { - GVirNetworkPrivate *priv = network->priv; const char *name; - if (!(name = virNetworkGetName(priv->handle))) { - g_warning("Failed to get network name on %p", priv->handle); + g_return_val_if_fail(GVIR_IS_NETWORK(network), NULL); + + if (!(name = virNetworkGetName(network->priv->handle))) { + g_warning("Failed to get network name on %p", network->priv->handle); return NULL; } @@ -212,9 +213,13 @@ GVirConfigNetwork *gvir_network_get_config(GVirNetwork *network, guint flags, GError **err) { - GVirNetworkPrivate *priv = network->priv; + GVirNetworkPrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_NETWORK(network), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = network->priv; if (!(xml = virNetworkGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_NETWORK_ERROR, 0, diff --git a/libvirt-gobject/libvirt-gobject-node-device.c b/libvirt-gobject/libvirt-gobject-node-device.c index 0a4b6a6..eb314ed 100644 --- a/libvirt-gobject/libvirt-gobject-node-device.c +++ b/libvirt-gobject/libvirt-gobject-node-device.c @@ -159,11 +159,13 @@ G_DEFINE_BOXED_TYPE(GVirNodeDeviceHandle, gvir_node_device_handle, const gchar *gvir_node_device_get_name(GVirNodeDevice *device) { - GVirNodeDevicePrivate *priv = device->priv; const char *name; - if (!(name = virNodeDeviceGetName(priv->handle))) { - g_warning("Failed to get node_device name on %p", priv->handle); + g_return_val_if_fail(GVIR_IS_NODE_DEVICE(device), NULL); + + if (!(name = virNodeDeviceGetName(device->priv->handle))) { + g_warning("Failed to get node_device name on %p", + device->priv->handle); return NULL; } @@ -185,9 +187,13 @@ GVirConfigNodeDevice *gvir_node_device_get_config(GVirNodeDevice *device, guint flags, GError **err) { - GVirNodeDevicePrivate *priv = device->priv; + GVirNodeDevicePrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_NODE_DEVICE(device), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = device->priv; if (!(xml = virNodeDeviceGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_NODE_DEVICE_ERROR, 0, diff --git a/libvirt-gobject/libvirt-gobject-secret.c b/libvirt-gobject/libvirt-gobject-secret.c index b0aff13..8bfee88 100644 --- a/libvirt-gobject/libvirt-gobject-secret.c +++ b/libvirt-gobject/libvirt-gobject-secret.c @@ -201,9 +201,13 @@ GVirConfigSecret *gvir_secret_get_config(GVirSecret *secret, guint flags, GError **err) { - GVirSecretPrivate *priv = secret->priv; + GVirSecretPrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_SECRET(secret), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = secret->priv; if (!(xml = virSecretGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_SECRET_ERROR, 0, diff --git a/libvirt-gobject/libvirt-gobject-storage-pool.c b/libvirt-gobject/libvirt-gobject-storage-pool.c index e79c8e5..7f50037 100644 --- a/libvirt-gobject/libvirt-gobject-storage-pool.c +++ b/libvirt-gobject/libvirt-gobject-storage-pool.c @@ -211,11 +211,12 @@ G_DEFINE_BOXED_TYPE(GVirStoragePoolInfo, gvir_storage_pool_info, const gchar *gvir_storage_pool_get_name(GVirStoragePool *pool) { - GVirStoragePoolPrivate *priv = pool->priv; const char *name; - if (!(name = virStoragePoolGetName(priv->handle))) { - g_warning("Failed to get storage_pool name on %p", priv->handle); + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), NULL); + + if (!(name = virStoragePoolGetName(pool->priv->handle))) { + g_warning("Failed to get storage_pool name on %p", pool->priv->handle); return NULL; } @@ -244,9 +245,13 @@ GVirConfigStoragePool *gvir_storage_pool_get_config(GVirStoragePool *pool, guint flags, GError **err) { - GVirStoragePoolPrivate *priv = pool->priv; + GVirStoragePoolPrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = pool->priv; if (!(xml = virStoragePoolGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_STORAGE_POOL_ERROR, 0, @@ -271,10 +276,14 @@ GVirConfigStoragePool *gvir_storage_pool_get_config(GVirStoragePool *pool, GVirStoragePoolInfo *gvir_storage_pool_get_info(GVirStoragePool *pool, GError **err) { - GVirStoragePoolPrivate *priv = pool->priv; + GVirStoragePoolPrivate *priv; virStoragePoolInfo info; GVirStoragePoolInfo *ret; + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = pool->priv; if (virStoragePoolGetInfo(priv->handle, &info) < 0) { if (err) *err = gvir_error_new_literal(GVIR_STORAGE_POOL_ERROR, @@ -346,7 +355,7 @@ gboolean gvir_storage_pool_refresh(GVirStoragePool *pool, GCancellable *cancellable, GError **err) { - GVirStoragePoolPrivate *priv = pool->priv; + GVirStoragePoolPrivate *priv; GHashTable *vol_hash; gchar **volumes = NULL; gint nvolumes = 0; @@ -355,6 +364,12 @@ gboolean gvir_storage_pool_refresh(GVirStoragePool *pool, virStoragePoolPtr vpool = NULL; GError *lerr = NULL; + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), FALSE); + g_return_val_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable), + FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + + priv = pool->priv; vpool = priv->handle; if (virStoragePoolRefresh(vpool, 0) < 0) { @@ -447,6 +462,9 @@ void gvir_storage_pool_refresh_async(GVirStoragePool *pool, { GSimpleAsyncResult *res; + g_return_if_fail(GVIR_IS_STORAGE_POOL(pool)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + res = g_simple_async_result_new(G_OBJECT(pool), callback, user_data, @@ -495,9 +513,12 @@ static void gvir_storage_vol_ref(gpointer obj, gpointer ignore G_GNUC_UNUSED) */ GList *gvir_storage_pool_get_volumes(GVirStoragePool *pool) { - GVirStoragePoolPrivate *priv = pool->priv; + GVirStoragePoolPrivate *priv; GList *volumes = NULL; + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), NULL); + + priv = pool->priv; g_mutex_lock(priv->lock); if (priv->volumes != NULL) { volumes = g_hash_table_get_values(priv->volumes); @@ -520,9 +541,12 @@ GList *gvir_storage_pool_get_volumes(GVirStoragePool *pool) GVirStorageVol *gvir_storage_pool_get_volume(GVirStoragePool *pool, const gchar *name) { - GVirStoragePoolPrivate *priv = pool->priv; + GVirStoragePoolPrivate *priv; GVirStorageVol *volume; + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), NULL); + + priv = pool->priv; g_mutex_lock(priv->lock); volume = g_hash_table_lookup(priv->volumes, name); if (volume) @@ -548,12 +572,17 @@ GVirStorageVol *gvir_storage_pool_create_volume { const gchar *xml; virStorageVolPtr handle; - GVirStoragePoolPrivate *priv = pool->priv; + GVirStoragePoolPrivate *priv; + + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), NULL); + g_return_val_if_fail(GVIR_CONFIG_IS_STORAGE_VOL(conf), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); xml = gvir_config_object_to_xml(GVIR_CONFIG_OBJECT(conf)); g_return_val_if_fail(xml != NULL, NULL); + priv = pool->priv; if (!(handle = virStorageVolCreateXML(priv->handle, xml, 0))) { gvir_set_error_literal(err, GVIR_STORAGE_POOL_ERROR, 0, @@ -593,6 +622,9 @@ gboolean gvir_storage_pool_build (GVirStoragePool *pool, guint flags, GError **err) { + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + if (virStoragePoolBuild(pool->priv->handle, flags)) { gvir_set_error_literal(err, GVIR_STORAGE_POOL_ERROR, 0, @@ -644,6 +676,9 @@ void gvir_storage_pool_build_async (GVirStoragePool *pool, GSimpleAsyncResult *res; StoragePoolBuildData *data; + g_return_if_fail(GVIR_IS_STORAGE_POOL(pool)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + data = g_slice_new0(StoragePoolBuildData); data->flags = flags; @@ -675,6 +710,7 @@ gboolean gvir_storage_pool_build_finish(GVirStoragePool *pool, g_return_val_if_fail(g_simple_async_result_is_valid(result, G_OBJECT(pool), gvir_storage_pool_build_async), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); if (g_simple_async_result_propagate_error(G_SIMPLE_ASYNC_RESULT(result), err)) @@ -695,6 +731,9 @@ gboolean gvir_storage_pool_start (GVirStoragePool *pool, guint flags, GError **err) { + g_return_val_if_fail(GVIR_IS_STORAGE_POOL(pool), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + if (virStoragePoolCreate(pool->priv->handle, flags)) { gvir_set_error_literal(err, GVIR_STORAGE_POOL_ERROR, 0, @@ -742,6 +781,9 @@ void gvir_storage_pool_start_async (GVirStoragePool *pool, GSimpleAsyncResult *res; StoragePoolBuildData *data; + g_return_if_fail(GVIR_IS_STORAGE_POOL(pool)); + g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable)); + data = g_slice_new0(StoragePoolBuildData); data->flags = flags; @@ -773,6 +815,7 @@ gboolean gvir_storage_pool_start_finish(GVirStoragePool *pool, g_return_val_if_fail(g_simple_async_result_is_valid(result, G_OBJECT(pool), gvir_storage_pool_start_async), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); if (g_simple_async_result_propagate_error(G_SIMPLE_ASYNC_RESULT(result), err)) diff --git a/libvirt-gobject/libvirt-gobject-storage-vol.c b/libvirt-gobject/libvirt-gobject-storage-vol.c index 9e59576..6f60fcd 100644 --- a/libvirt-gobject/libvirt-gobject-storage-vol.c +++ b/libvirt-gobject/libvirt-gobject-storage-vol.c @@ -195,11 +195,12 @@ G_DEFINE_BOXED_TYPE(GVirStorageVolInfo, gvir_storage_vol_info, const gchar *gvir_storage_vol_get_name(GVirStorageVol *vol) { - GVirStorageVolPrivate *priv = vol->priv; const char *name; - if (!(name = virStorageVolGetName(priv->handle))) { - g_warning("Failed to get storage_vol name on %p", priv->handle); + g_return_val_if_fail(GVIR_IS_STORAGE_VOL(vol), NULL); + + if (!(name = virStorageVolGetName(vol->priv->handle))) { + g_warning("Failed to get storage_vol name on %p", vol->priv->handle); return NULL; } @@ -208,13 +209,15 @@ const gchar *gvir_storage_vol_get_name(GVirStorageVol *vol) const gchar *gvir_storage_vol_get_path(GVirStorageVol *vol, GError **error) { - GVirStorageVolPrivate *priv = vol->priv; const char *path; - if (!(path = virStorageVolGetPath(priv->handle))) { + g_return_val_if_fail(GVIR_IS_STORAGE_VOL(vol), NULL); + g_return_val_if_fail(error == NULL || *error == NULL, NULL); + + if (!(path = virStorageVolGetPath(vol->priv->handle))) { gvir_set_error(error, GVIR_STORAGE_VOL_ERROR, 0, "Failed to get storage_vol path on %p", - priv->handle); + vol->priv->handle); return NULL; } @@ -234,9 +237,13 @@ GVirConfigStorageVol *gvir_storage_vol_get_config(GVirStorageVol *vol, guint flags, GError **err) { - GVirStorageVolPrivate *priv = vol->priv; + GVirStorageVolPrivate *priv; gchar *xml; + g_return_val_if_fail(GVIR_IS_STORAGE_VOL(vol), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = vol->priv; if (!(xml = virStorageVolGetXMLDesc(priv->handle, flags))) { gvir_set_error_literal(err, GVIR_STORAGE_VOL_ERROR, 0, @@ -261,10 +268,14 @@ GVirConfigStorageVol *gvir_storage_vol_get_config(GVirStorageVol *vol, GVirStorageVolInfo *gvir_storage_vol_get_info(GVirStorageVol *vol, GError **err) { - GVirStorageVolPrivate *priv = vol->priv; + GVirStorageVolPrivate *priv; virStorageVolInfo info; GVirStorageVolInfo *ret; + g_return_val_if_fail(GVIR_IS_STORAGE_VOL(vol), NULL); + g_return_val_if_fail(err == NULL || *err == NULL, NULL); + + priv = vol->priv; if (virStorageVolGetInfo(priv->handle, &info) < 0) { if (err) *err = gvir_error_new_literal(GVIR_STORAGE_VOL_ERROR, @@ -295,6 +306,9 @@ gboolean gvir_storage_vol_delete(GVirStorageVol *vol, guint flags, GError **err) { + g_return_val_if_fail(GVIR_IS_STORAGE_VOL(vol), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + if (virStorageVolDelete(vol->priv->handle, flags) < 0) { gvir_set_error_literal(err, GVIR_STORAGE_VOL_ERROR, @@ -322,6 +336,9 @@ gboolean gvir_storage_vol_resize(GVirStorageVol *vol, guint flags, GError **err) { + g_return_val_if_fail(GVIR_IS_STORAGE_VOL(vol), FALSE); + g_return_val_if_fail(err == NULL || *err == NULL, FALSE); + if (virStorageVolResize(vol->priv->handle, capacity, flags) < 0) { gvir_set_error_literal(err, GVIR_STORAGE_VOL_ERROR, diff --git a/libvirt-gobject/libvirt-gobject-stream.c b/libvirt-gobject/libvirt-gobject-stream.c index 60da4bc..3b98023 100644 --- a/libvirt-gobject/libvirt-gobject-stream.c +++ b/libvirt-gobject/libvirt-gobject-stream.c @@ -379,7 +379,9 @@ gvir_stream_receive_all(GVirStream *self, int r; g_return_val_if_fail(GVIR_IS_STREAM(self), -1); + g_return_val_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable), -1); g_return_val_if_fail(func != NULL, -1); + g_return_val_if_fail(error == NULL || *error == NULL, -1); r = virStreamRecvAll(self->priv->handle, stream_sink, &helper); if (r < 0) { @@ -424,6 +426,8 @@ gssize gvir_stream_send(GVirStream *self, g_return_val_if_fail(GVIR_IS_STREAM(self), -1); g_return_val_if_fail(buffer != NULL, -1); + g_return_val_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable), -1); + g_return_val_if_fail(error == NULL || *error == NULL, -1); if (g_cancellable_set_error_if_cancelled (cancellable, error)) return -1; @@ -491,7 +495,9 @@ gvir_stream_send_all(GVirStream *self, int r; g_return_val_if_fail(GVIR_IS_STREAM(self), -1); + g_return_val_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable), -1); g_return_val_if_fail(func != NULL, -1); + g_return_val_if_fail(error == NULL || *error == NULL, -1); r = virStreamSendAll(self->priv->handle, stream_source, &helper); if (r < 0) { -- 1.7.10.1

2 1

[libvirt] [PATCH v2 0/2] Rework RPC message buffer
by Michal Privoznik 23 May '12

23 May '12

This patch set tries to fix corner cases where libvirt runs on huge system, e.g. 4K CPU monster. In these cases, capabilities XML is enormously big, as we are transferring info about each singe CPU core (to which NUMA node it belongs, etc.). This XML is bigger than our RPC limit, therefore users cannot get it as it is dropped on server, leaving them with inability to connect. Therefore we need to increase those limits (whole RPC message and RPC string). However, simple lifting up will work, but increase mem usage. Therefore I've reworked RPC buffer handling: changed it from 'statically' to dynamically allocated. So in most cases - when small messages are sent - this will even decrease our memory consumption. Leaving us flexible for corner cases described above. On the other hand, I realize we've had our history with RPC breakage. So I think I'll require more than 1 ACK before pushing. diff to v1: -couple of fixes (1/2) -increased other limits as well (2/2) Michal Privoznik (2): rpc: Switch to dynamically allocated message buffer rpc: Size up RPC limits src/remote/remote_protocol.x | 20 +- src/rpc/virnetclient.c | 16 ++- src/rpc/virnetmessage.c | 12 ++- src/rpc/virnetmessage.h | 5 +- src/rpc/virnetprotocol.x | 6 +- src/rpc/virnetserverclient.c | 24 +++- tests/virnetmessagetest.c | 393 +++++++++++++++++++++++------------------- 7 files changed, 279 insertions(+), 197 deletions(-) -- 1.7.8.5

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[libvirt] [PATCH v2] [TCK] nwfilter: Add test cases for ipset
by Stefan Berger 23 May '12

23 May '12

Add test cases for ipset support. Since ipset may not be available on all system, the first line of the XML file containing the test filter has been extended with a specially formatted XML comment containing a command line test for whether the test case can be run at all. The format of that line is:  If the tests in this line don't succeed, the test case is skipped. Also add a test case cleaning up the created ipset. Run this test after all other tests using alphabetical ordering. --- v2: - addressed Eric Blake's comments --- scripts/nwfilter/nwfilter2vmtest.sh | 36 +++++++-- scripts/nwfilter/nwfilterxml2fwallout/ipset-test.fwall | 39 ++++++++++ scripts/nwfilter/nwfilterxml2fwallout/zzz-ipset-cleanup.fwall | 1 scripts/nwfilter/nwfilterxml2xmlin/ipset-test.xml | 25 ++++++ scripts/nwfilter/nwfilterxml2xmlin/zzz-ipset-cleanup.xml | 5 + 5 files changed, 99 insertions(+), 7 deletions(-) Index: libvirt-tck/scripts/nwfilter/nwfilterxml2xmlin/ipset-test.xml =================================================================== --- /dev/null +++ libvirt-tck/scripts/nwfilter/nwfilterxml2xmlin/ipset-test.xml @@ -0,0 +1,25 @@ + +<filter name='tck-testcase' chain='root'> + <uuid>5c6d49af-b071-6127-b4ec-6f8ed4b55335</uuid> + <rule action='accept' direction='out'> + <all ipset='tck_test' ipsetflags='src,dst' /> + </rule> + <rule action='accept' direction='in'> + <all state='NONE' ipset='tck_test' ipsetflags='src,dst' comment='in+NONE'/> + </rule> + <rule action='accept' direction='out'> + <all state='NONE' ipset='tck_test' ipsetflags='src,dst' comment='out+NONE'/> + </rule> + <rule action='accept' direction='in'> + <all ipset='tck_test' ipsetflags='SRC,DST,SRC' /> + </rule> + <rule action='accept' direction='in'> + <all ipset='tck_test' ipsetflags='SRC,dSt,SRC' /> + </rule> + <rule action='accept' direction='in'> + <all ipset='$IPSETNAME' ipsetflags='src,dst' /> + </rule> + <rule action='accept' direction='inout'> + <all ipset='$IPSETNAME' ipsetflags='src,dst' comment='inout'/> + </rule> +</filter> Index: libvirt-tck/scripts/nwfilter/nwfilter2vmtest.sh =================================================================== --- libvirt-tck.orig/scripts/nwfilter/nwfilter2vmtest.sh +++ libvirt-tck/scripts/nwfilter/nwfilter2vmtest.sh @@ -107,6 +107,7 @@ checkExpectedOutput() { ifname="$3" flags="$4" skipregex="$5" + skiptest="$6" regex="s/${ORIG_IFNAME}/${ifname}/g" tmpdir=$(mktmpdir) @@ -147,6 +148,18 @@ checkExpectedOutput() { break fi + if [ -n "${skiptest}" ]; then + # treat all skips as passes + passctr=$(($passctr + 1)) + [ $(($flags & $FLAG_VERBOSE)) -ne 0 ] && \ + echo "SKIP ${xmlfile} : ${cmd}" + [ $(($flags & $FLAG_LIBVIRT_TEST)) -ne 0 ] && \ + test_result $(($passctr + $failctr)) "" 0 + [ $(($flags & $FLAG_TAP_TEST)) -ne 0 ] && \ + tap_pass $(($passctr + $failctr)) "SKIP: ${xmlfile} : ${skiptest}" + break + fi + diff -w ${tmpfile} ${tmpfile2} >/dev/null if [ $? -ne 0 ]; then @@ -197,19 +210,27 @@ doTest() { flags="$5" testnum="$6" ctr=0 + skiptest="" if [ ! -r "${xmlfile}" ]; then echo "FAIL : Cannot access filter XML file ${xmlfile}." return 1 fi - ${VIRSH} nwfilter-define "${xmlfile}" > /dev/null + # Check whether we can run this test at all + cmd=$(sed -n '1 s/^<\!--[ ]*#$.*$#[ ]*-->/\1/p' ${xmlfile}) + if [ -n "${cmd}" ]; then + eval "${cmd}" 2>/dev/null 1>/dev/null + [ $? -ne 0 ] && skiptest="${cmd}" + fi + + [ -z "${skiptest}" ] && ${VIRSH} nwfilter-define "${xmlfile}" > /dev/null checkExpectedOutput "${xmlfile}" "${fwallfile}" "${vm1name}" "${flags}" \ - "" + "" "${skiptest}" checkExpectedOutput "${TESTFILTERNAME}" "${TESTVM2FWALLDATA}" \ - "${vm2name}" "${flags}" "" + "${vm2name}" "${flags}" "" "${skiptest}" if [ $(($flags & $FLAG_ATTACH)) -ne 0 ]; then @@ -234,9 +255,9 @@ EOF if [ $rc -eq 0 ]; then checkExpectedOutput "${xmlfile}" "${fwallfile}" "${ATTACH_IFNAME}" \ - "${flags}" "(PRE|POST)ROUTING" + "${flags}" "(PRE|POST)ROUTING" "${skiptest}" checkExpectedOutput "${TESTFILTERNAME}" "${TESTVM2FWALLDATA}" \ - "${vm2name}" "${flags}" "(PRE|POST)ROUTING" + "${vm2name}" "${flags}" "(PRE|POST)ROUTING" "${skiptest}" msg=`${VIRSH} detach-device "${vm1name}" "${tmpfile}"` if [ $? -ne 0 ]; then echo "FAIL: Detach of interface failed." @@ -246,9 +267,9 @@ EOF # In case of TAP, run the test anyway so we get to the full number # of tests checkExpectedOutput "${xmlfile}" "${fwallfile}" "${ATTACH_IFNAME}" \ - "${flags}" "" #"(PRE|POST)ROUTING" + "${flags}" "" "${skiptest}" #"(PRE|POST)ROUTING" checkExpectedOutput "${TESTFILTERNAME}" "${TESTVM2FWALLDATA}" \ - "${vm2name}" "${flags}" #"(PRE|POST)ROUTING" + "${vm2name}" "${flags}" "${skiptest}" #"(PRE|POST)ROUTING" fi attachfailctr=$(($attachfailctr + 1)) @@ -357,6 +378,7 @@ createVM() { <parameter name='C' value='1090'/> <parameter name='C' value='1100'/> <parameter name='C' value='1110'/> + <parameter name='IPSETNAME' value='tck_test'/> </filterref> <target dev='${vmname}'/> </interface> Index: libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/ipset-test.fwall =================================================================== --- /dev/null +++ libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/ipset-test.fwall @@ -0,0 +1,39 @@ +#iptables -L FI-vnet0 -n +Chain FI-vnet0 (1 references) +target prot opt source destination +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state NEW,ESTABLISHED ctdir REPLY match-set tck_test src,dst +RETURN all -- 0.0.0.0/0 0.0.0.0/0 match-set tck_test src,dst /* out+NONE */ +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state ESTABLISHED ctdir ORIGINAL match-set tck_test dst,src,dst +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state ESTABLISHED ctdir ORIGINAL match-set tck_test dst,src,dst +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state ESTABLISHED ctdir ORIGINAL match-set tck_test dst,src +RETURN all -- 0.0.0.0/0 0.0.0.0/0 match-set tck_test dst,src /* inout */ +#iptables -L FO-vnet0 -n +Chain FO-vnet0 (1 references) +target prot opt source destination +ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state ESTABLISHED ctdir ORIGINAL match-set tck_test dst,src +ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 match-set tck_test src,dst /* in+NONE */ +ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state NEW,ESTABLISHED ctdir REPLY match-set tck_test src,dst,src +ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state NEW,ESTABLISHED ctdir REPLY match-set tck_test src,dst,src +ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state NEW,ESTABLISHED ctdir REPLY match-set tck_test src,dst +ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 match-set tck_test src,dst /* inout */ +#iptables -L HI-vnet0 -n +Chain HI-vnet0 (1 references) +target prot opt source destination +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state NEW,ESTABLISHED ctdir REPLY match-set tck_test src,dst +RETURN all -- 0.0.0.0/0 0.0.0.0/0 match-set tck_test src,dst /* out+NONE */ +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state ESTABLISHED ctdir ORIGINAL match-set tck_test dst,src,dst +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state ESTABLISHED ctdir ORIGINAL match-set tck_test dst,src,dst +RETURN all -- 0.0.0.0/0 0.0.0.0/0 state ESTABLISHED ctdir ORIGINAL match-set tck_test dst,src +RETURN all -- 0.0.0.0/0 0.0.0.0/0 match-set tck_test dst,src /* inout */ +#iptables -L libvirt-host-in -n | grep vnet0 | tr -s " " +HI-vnet0 all -- 0.0.0.0/0 0.0.0.0/0 [goto] PHYSDEV match --physdev-in vnet0 +#iptables -L libvirt-in -n | grep vnet0 | tr -s " " +FI-vnet0 all -- 0.0.0.0/0 0.0.0.0/0 [goto] PHYSDEV match --physdev-in vnet0 +#iptables -L libvirt-in-post -n | grep vnet0 +ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 PHYSDEV match --physdev-in vnet0 +#iptables -L libvirt-out -n | grep vnet0 | tr -s " " +FO-vnet0 all -- 0.0.0.0/0 0.0.0.0/0 [goto] PHYSDEV match --physdev-out vnet0 +#ebtables -t nat -L libvirt-O-vnet0 2>/dev/null | grep -v "table:" | grep -v "^$" +#ebtables -t nat -L libvirt-I-vnet0 2>/dev/null | grep -v "table:" | grep -v "^$" +#ebtables -t nat -L PREROUTING | grep vnet0 +#ebtables -t nat -L POSTROUTING | grep vnet0 Index: libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/zzz-ipset-cleanup.fwall =================================================================== --- /dev/null +++ libvirt-tck/scripts/nwfilter/nwfilterxml2fwallout/zzz-ipset-cleanup.fwall @@ -0,0 +1 @@ +#ipset destroy tck_test 2>&1 1>/dev/null Index: libvirt-tck/scripts/nwfilter/nwfilterxml2xmlin/zzz-ipset-cleanup.xml =================================================================== --- /dev/null +++ libvirt-tck/scripts/nwfilter/nwfilterxml2xmlin/zzz-ipset-cleanup.xml @@ -0,0 +1,5 @@ + +<filter name='tck-testcase' chain='root'> + <uuid>5c6d49af-b071-6127-b4ec-6f8ed4b55335</uuid> +  +</filter>

2 2

[libvirt] [PATCH] Revert "rpc: Discard non-blocking calls only when necessary"
by Jiri Denemark 22 May '12

22 May '12

This reverts commit b1e374a7ac56927cfe62435179bf0bba1e08b372, which was rather bad since I failed to consider all sides of the issue. Thus, the reverted patch actually breaks more than what it fixes and clients (which may even be libvirtd during p2p migrations) will likely end up with a corrupted dispatch queue. --- I will send proper replacement for the reverted patch later once I'm convinced it's correct (more than I was convinced the original one was correct) :-P src/rpc/virnetclient.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/src/rpc/virnetclient.c b/src/rpc/virnetclient.c index 3a60db6..d88288d 100644 --- a/src/rpc/virnetclient.c +++ b/src/rpc/virnetclient.c @@ -1265,13 +1265,6 @@ static void virNetClientIOEventLoopPassTheBuck(virNetClientPtr client, virNetCli } client->haveTheBuck = false; - /* Remove non-blocking calls from the dispatch list since there is no - * call with a thread in the list which could take care of them. - */ - virNetClientCallRemovePredicate(&client->waitDispatch, - virNetClientIOEventLoopRemoveNonBlocking, - thiscall); - VIR_DEBUG("No thread to pass the buck to"); if (client->wantClose) { virNetClientCloseLocked(client); @@ -1315,9 +1308,12 @@ static int virNetClientIOEventLoop(virNetClientPtr client, if (virNetSocketHasCachedData(client->sock) || client->wantClose) timeout = 0; - /* If we are non-blocking, we don't want to sleep in poll() + /* If there are any non-blocking calls in the queue, + * then we don't want to sleep in poll() */ - if (thiscall->nonBlock) + if (virNetClientCallMatchPredicate(client->waitDispatch, + virNetClientIOEventLoopWantNonBlock, + NULL)) timeout = 0; fds[0].events = fds[0].revents = 0; @@ -1422,6 +1418,13 @@ static int virNetClientIOEventLoop(virNetClientPtr client, virNetClientIOEventLoopRemoveDone, thiscall); + /* Iterate through waiting calls and if any are + * non-blocking, remove them from the dispatch list... + */ + virNetClientCallRemovePredicate(&client->waitDispatch, + virNetClientIOEventLoopRemoveNonBlocking, + thiscall); + /* Now see if *we* are done */ if (thiscall->mode == VIR_NET_CLIENT_MODE_COMPLETE) { virNetClientCallRemove(&client->waitDispatch, thiscall); -- 1.7.10.2

2 2

[libvirt] JSON license is non-free - how are we affected?
by Eric Blake 22 May '12

22 May '12

The QMP monitor uses JSON as its underlying base. However, when you read the license of JSON [1], you will note that it has a pretty severe limitation ("The Software shall be used for Good, not Evil"). In fact, this limitation is severe enough that the FSF has declared that the JSON license is non-free (even if the limitation is unenforceable), and therefore cannot be combined with GPL code: [1] http://www.json.org/license.html [2] https://www.gnu.org/licenses/license-list.html#JSON How do we reconcile this? Obviously, qemu must remain GPL, because it has files that are licensed GPLv2, and the overall license is the restrictive union of all source licenses. But that implies that we cannot include any source code or libraries provided by json.org, if such code is under the incompatible JSON license. Is the JSON license only applicable to code downloaded from json.org, but not to the actual JSON language specification? If so, does that mean that a clean-room implementation of JSON (the language specification) can be written with different license than JSON (the license), and that such alternate code could then be linked into qemu? Is this already the case? It would be a shame to have to reinvent QMP to use a different language specification if the entire JSON language is deemed poisoned. Thoughts? Do we need to seek legal guidance from FSF, Red Hat, or any other organization on how to proceed? -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org

3 3