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

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Hi,

On Tue, Jun 17, 2014 at 04:01:53PM +0200, Cédric Bosdonnat wrote:
> 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))) {

Missing g_object_unref(connection); here too.

> +        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;

Wondering whether this we should return FALSE when we did nothing
because we only support SELinux.

Patch is fine otherwise, I can squash these changes in before pushing if
you don't want to send yet another iteration ;)

Christophe

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