remote: Implement the remote protocol for launch security

Add remote support for launch security info.
Signed-off-by: NBrijesh Singh <brijesh.singh@amd.com>
Reviewed-by: NErik Skultety <eskultet@redhat.com>

src/remote/remote_daemon_dispatch.c

@@ -3109,6 +3109,53 @@ remoteDispatchNodeGetMemoryStats(virNetServerPtr server ATTRIBUTE_UNUSED,
     return rv;
 }
 
+static int
+remoteDispatchDomainGetLaunchSecurityInfo(virNetServerPtr server ATTRIBUTE_UNUSED,
+                                          virNetServerClientPtr client ATTRIBUTE_UNUSED,
+                                          virNetMessagePtr msg ATTRIBUTE_UNUSED,
+                                          virNetMessageErrorPtr rerr,
+                                          remote_domain_get_launch_security_info_args *args,
+                                          remote_domain_get_launch_security_info_ret *ret)
+{
+    virDomainPtr dom = NULL;
+    virTypedParameterPtr params = NULL;
+    int nparams = 0;
+    int rv = -1;
+    struct daemonClientPrivate *priv =
+        virNetServerClientGetPrivateData(client);
+
+    if (!priv->conn) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("connection not open"));
+        goto cleanup;
+    }
+
+    if (!(dom = get_nonnull_domain(priv->conn, args->dom)))
+        goto cleanup;
+
+    if (virDomainGetLaunchSecurityInfo(dom, &params, &nparams, args->flags) < 0)
+        goto cleanup;
+
+    if (nparams > REMOTE_DOMAIN_LAUNCH_SECURITY_INFO_PARAMS_MAX) {
+        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("nparams too large"));
+        goto cleanup;
+    }
+
+    if (virTypedParamsSerialize(params, nparams,
+                                (virTypedParameterRemotePtr *) &ret->params.params_val,
+                                &ret->params.params_len,
+                                args->flags) < 0)
+        goto cleanup;
+
+    rv = 0;
+
+ cleanup:
+    if (rv < 0)
+        virNetMessageSaveError(rerr);
+    virTypedParamsFree(params, nparams);
+    virObjectUnref(dom);
+    return rv;
+}
+
 static int
 remoteDispatchDomainGetPerfEvents(virNetServerPtr server ATTRIBUTE_UNUSED,
                                   virNetServerClientPtr client ATTRIBUTE_UNUSED,

src/remote/remote_driver.c

@@ -1965,6 +1965,45 @@ remoteDomainGetNumaParameters(virDomainPtr domain,
     return rv;
 }
 
+static int
+remoteDomainGetLaunchSecurityInfo(virDomainPtr domain,
+                                  virTypedParameterPtr *params,
+                                  int *nparams,
+                                  unsigned int flags)
+{
+    int rv = -1;
+    remote_domain_get_launch_security_info_args args;
+    remote_domain_get_launch_security_info_ret ret;
+    struct private_data *priv = domain->conn->privateData;
+
+    remoteDriverLock(priv);
+
+    make_nonnull_domain(&args.dom, domain);
+    args.flags = flags;
+
+    memset(&ret, 0, sizeof(ret));
+    if (call(domain->conn, priv, 0, REMOTE_PROC_DOMAIN_GET_LAUNCH_SECURITY_INFO,
+             (xdrproc_t) xdr_remote_domain_get_launch_security_info_args, (char *) &args,
+             (xdrproc_t) xdr_remote_domain_get_launch_security_info_ret, (char *) &ret) == -1)
+        goto done;
+
+    if (virTypedParamsDeserialize((virTypedParameterRemotePtr) ret.params.params_val,
+                                  ret.params.params_len,
+                                  REMOTE_DOMAIN_LAUNCH_SECURITY_INFO_PARAMS_MAX,
+                                  params,
+                                  nparams) < 0)
+        goto cleanup;
+
+    rv = 0;
+
+ cleanup:
+    xdr_free((xdrproc_t) xdr_remote_domain_get_launch_security_info_ret,
+             (char *) &ret);
+ done:
+    remoteDriverUnlock(priv);
+    return rv;
+}
+
 static int
 remoteDomainGetPerfEvents(virDomainPtr domain,
                           virTypedParameterPtr *params,
@@ -8482,6 +8521,7 @@ static virHypervisorDriver hypervisor_driver = {
     .connectCompareHypervisorCPU = remoteConnectCompareHypervisorCPU, /* 4.4.0 */
     .connectBaselineHypervisorCPU = remoteConnectBaselineHypervisorCPU, /* 4.4.0 */
     .nodeGetSEVInfo = remoteNodeGetSEVInfo, /* 4.5.0 */
+    .domainGetLaunchSecurityInfo = remoteDomainGetLaunchSecurityInfo /* 4.5.0 */
 };
 
 static virNetworkDriver network_driver = {

src/remote/remote_protocol.x

@@ -256,6 +256,9 @@ const REMOTE_DOMAIN_GUEST_VCPU_PARAMS_MAX = 64;
 /* Upper limit on number of SEV parameters */
 const REMOTE_NODE_SEV_INFO_MAX = 64;
 
+/* Upper limit on number of launch security information entries */
+const REMOTE_DOMAIN_LAUNCH_SECURITY_INFO_PARAMS_MAX = 64;
+
 /* UUID.  VIR_UUID_BUFLEN definition comes from libvirt.h */
 typedef opaque remote_uuid[VIR_UUID_BUFLEN];
 
@@ -3493,6 +3496,14 @@ struct remote_node_get_sev_info_ret {
     int nparams;
 };
 
+struct remote_domain_get_launch_security_info_args {
+    remote_nonnull_domain dom;
+    unsigned int flags;
+};
+
+struct remote_domain_get_launch_security_info_ret {
+    remote_typed_param params<REMOTE_DOMAIN_LAUNCH_SECURITY_INFO_PARAMS_MAX>;
+};
 
 /*----- Protocol. -----*/
 
@@ -6207,5 +6218,11 @@ enum remote_procedure {
      * @generate: none
      * @acl: connect:read
      */
-    REMOTE_PROC_NODE_GET_SEV_INFO = 395
+    REMOTE_PROC_NODE_GET_SEV_INFO = 395,
+
+    /**
+     * @generate: none
+     * @acl: domain:read
+     */
+    REMOTE_PROC_DOMAIN_GET_LAUNCH_SECURITY_INFO = 396
 };

src/remote_protocol-structs

@@ -2918,6 +2918,16 @@ struct remote_node_get_sev_info_ret {
         } params;
         int                        nparams;
 };
+struct remote_domain_get_launch_security_info_args {
+        remote_nonnull_domain      dom;
+        u_int                      flags;
+};
+struct remote_domain_get_launch_security_info_ret {
+        struct {
+                u_int              params_len;
+                remote_typed_param * params_val;
+        } params;
+};
 enum remote_procedure {
         REMOTE_PROC_CONNECT_OPEN = 1,
         REMOTE_PROC_CONNECT_CLOSE = 2,
@@ -3314,4 +3324,5 @@ enum remote_procedure {
         REMOTE_PROC_CONNECT_COMPARE_HYPERVISOR_CPU = 393,
         REMOTE_PROC_CONNECT_BASELINE_HYPERVISOR_CPU = 394,
         REMOTE_PROC_NODE_GET_SEV_INFO = 395,
+        REMOTE_PROC_DOMAIN_GET_LAUNCH_SECURITY_INFO = 396,
 };