[libvirt] [PATCH v4] Only set SELinux seclabel if supported by the host.

This code depends on new API in libvirt-gconfig to extract the secmodels handled by the host. --- Diff to v3: * Added yet another missing g_object_unref. * Fixed the logic for supportsSelinux libvirt-sandbox/libvirt-sandbox-builder.c | 49 +++++++++++++++++++++++++++---- 1 file changed, 43 insertions(+), 6 deletions(-) diff --git a/libvirt-sandbox/libvirt-sandbox-builder.c b/libvirt-sandbox/libvirt-sandbox-builder.c index 48b3acc..d6b5735 100644 --- a/libvirt-sandbox/libvirt-sandbox-builder.c +++ b/libvirt-sandbox/libvirt-sandbox-builder.c @@ -322,12 +322,10 @@ static gboolean gvir_sandbox_builder_construct_devices(GVirSandboxBuilder *build return TRUE; } - -static gboolean gvir_sandbox_builder_construct_security(GVirSandboxBuilder *builder G_GNUC_UNUSED, - GVirSandboxConfig *config G_GNUC_UNUSED, - const gchar *statedir G_GNUC_UNUSED, - GVirConfigDomain *domain, - GError **error G_GNUC_UNUSED) +static gboolean gvir_sandbox_builder_construct_security_selinux (GVirSandboxBuilder *builder, + GVirSandboxConfig *config, + GVirConfigDomain *domain, + GError **error) { GVirConfigDomainSeclabel *sec = gvir_config_domain_seclabel_new(); const char *label = gvir_sandbox_config_get_security_label(config); @@ -360,6 +358,45 @@ static gboolean gvir_sandbox_builder_construct_security(GVirSandboxBuilder *buil return TRUE; } +static gboolean gvir_sandbox_builder_construct_security(GVirSandboxBuilder *builder, + GVirSandboxConfig *config, + const gchar *statedir G_GNUC_UNUSED, + GVirConfigDomain *domain, + GError **error) +{ + GVirConnection *connection = gvir_sandbox_builder_get_connection(builder); + GVirConfigCapabilities *configCapabilities; + GVirConfigCapabilitiesHost *hostCapabilities; + GList *secmodels, *iter; + gboolean supportsSelinux = FALSE; + + /* What security models are available on the host? */ + if (!(configCapabilities = gvir_connection_get_capabilities(connection, error))) { + return FALSE; + } + + hostCapabilities = gvir_config_capabilities_get_host(configCapabilities); + + secmodels = gvir_config_capabilities_host_get_secmodels(hostCapabilities); + for (iter = secmodels; iter != NULL; iter = iter->next) { + if (g_str_equal(gvir_config_capabilities_host_secmodel_get_model( + GVIR_CONFIG_CAPABILITIES_HOST_SECMODEL(iter->data)), "selinux")) + supportsSelinux = TRUE; + g_object_unref(iter->data); + } + + g_list_free(secmodels); + g_object_unref(hostCapabilities); + g_object_unref(configCapabilities); + g_object_unref(connection); + + if (supportsSelinux) + return gvir_sandbox_builder_construct_security_selinux(builder, config, + domain, error); + + return TRUE; +} + static gboolean gvir_sandbox_builder_clean_post_start_default(GVirSandboxBuilder *builder G_GNUC_UNUSED, GVirSandboxConfig *config G_GNUC_UNUSED, -- 1.8.4.5