19bbc853bSPeter Maydell #include "qemu/osdep.h" 2da34e65cSMarkus Armbruster #include "qapi/error.h" 3269e09f3SIgor Mammedov #include "qom/object_interfaces.h" 4269e09f3SIgor Mammedov #include "qemu/module.h" 590998d58SDaniel P. Berrange #include "qapi-visit.h" 690998d58SDaniel P. Berrange #include "qapi/opts-visitor.h" 7269e09f3SIgor Mammedov 8269e09f3SIgor Mammedov void user_creatable_complete(Object *obj, Error **errp) 9269e09f3SIgor Mammedov { 10269e09f3SIgor Mammedov 11269e09f3SIgor Mammedov UserCreatableClass *ucc; 12269e09f3SIgor Mammedov UserCreatable *uc = 13269e09f3SIgor Mammedov (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE); 14269e09f3SIgor Mammedov 15269e09f3SIgor Mammedov if (!uc) { 16269e09f3SIgor Mammedov return; 17269e09f3SIgor Mammedov } 18269e09f3SIgor Mammedov 19269e09f3SIgor Mammedov ucc = USER_CREATABLE_GET_CLASS(uc); 20269e09f3SIgor Mammedov if (ucc->complete) { 21269e09f3SIgor Mammedov ucc->complete(uc, errp); 22269e09f3SIgor Mammedov } 23269e09f3SIgor Mammedov } 24269e09f3SIgor Mammedov 25d6edb155SLin Ma bool user_creatable_can_be_deleted(UserCreatable *uc, Error **errp) 26d6edb155SLin Ma { 27d6edb155SLin Ma 28d6edb155SLin Ma UserCreatableClass *ucc = USER_CREATABLE_GET_CLASS(uc); 29d6edb155SLin Ma 30d6edb155SLin Ma if (ucc->can_be_deleted) { 31d6edb155SLin Ma return ucc->can_be_deleted(uc, errp); 32d6edb155SLin Ma } else { 33d6edb155SLin Ma return true; 34d6edb155SLin Ma } 35d6edb155SLin Ma } 36d6edb155SLin Ma 3790998d58SDaniel P. Berrange Object *user_creatable_add_type(const char *type, const char *id, 3890998d58SDaniel P. Berrange const QDict *qdict, 3990998d58SDaniel P. Berrange Visitor *v, Error **errp) 4090998d58SDaniel P. Berrange { 4190998d58SDaniel P. Berrange Object *obj; 4290998d58SDaniel P. Berrange ObjectClass *klass; 4390998d58SDaniel P. Berrange const QDictEntry *e; 4490998d58SDaniel P. Berrange Error *local_err = NULL; 4590998d58SDaniel P. Berrange 4690998d58SDaniel P. Berrange klass = object_class_by_name(type); 4790998d58SDaniel P. Berrange if (!klass) { 4890998d58SDaniel P. Berrange error_setg(errp, "invalid object type: %s", type); 4990998d58SDaniel P. Berrange return NULL; 5090998d58SDaniel P. Berrange } 5190998d58SDaniel P. Berrange 5290998d58SDaniel P. Berrange if (!object_class_dynamic_cast(klass, TYPE_USER_CREATABLE)) { 5390998d58SDaniel P. Berrange error_setg(errp, "object type '%s' isn't supported by object-add", 5490998d58SDaniel P. Berrange type); 5590998d58SDaniel P. Berrange return NULL; 5690998d58SDaniel P. Berrange } 5790998d58SDaniel P. Berrange 5890998d58SDaniel P. Berrange if (object_class_is_abstract(klass)) { 5990998d58SDaniel P. Berrange error_setg(errp, "object type '%s' is abstract", type); 6090998d58SDaniel P. Berrange return NULL; 6190998d58SDaniel P. Berrange } 6290998d58SDaniel P. Berrange 63ad739706SEric Blake assert(qdict); 6490998d58SDaniel P. Berrange obj = object_new(type); 65ad739706SEric Blake visit_start_struct(v, NULL, NULL, 0, &local_err); 6690998d58SDaniel P. Berrange if (local_err) { 6790998d58SDaniel P. Berrange goto out; 6890998d58SDaniel P. Berrange } 69ad739706SEric Blake for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { 70ad739706SEric Blake object_property_set(obj, v, e->key, &local_err); 71ad739706SEric Blake if (local_err) { 72ad739706SEric Blake break; 7390998d58SDaniel P. Berrange } 7490998d58SDaniel P. Berrange } 7515c2f669SEric Blake if (!local_err) { 7615c2f669SEric Blake visit_check_struct(v, &local_err); 7715c2f669SEric Blake } 781158bb2aSEric Blake visit_end_struct(v, NULL); 79ad739706SEric Blake if (local_err) { 80ad739706SEric Blake goto out; 81ad739706SEric Blake } 8290998d58SDaniel P. Berrange 8390998d58SDaniel P. Berrange object_property_add_child(object_get_objects_root(), 8490998d58SDaniel P. Berrange id, obj, &local_err); 8590998d58SDaniel P. Berrange if (local_err) { 8690998d58SDaniel P. Berrange goto out; 8790998d58SDaniel P. Berrange } 8890998d58SDaniel P. Berrange 8990998d58SDaniel P. Berrange user_creatable_complete(obj, &local_err); 9090998d58SDaniel P. Berrange if (local_err) { 9190998d58SDaniel P. Berrange object_property_del(object_get_objects_root(), 9290998d58SDaniel P. Berrange id, &error_abort); 9390998d58SDaniel P. Berrange goto out; 9490998d58SDaniel P. Berrange } 9590998d58SDaniel P. Berrange out: 9690998d58SDaniel P. Berrange if (local_err) { 9790998d58SDaniel P. Berrange error_propagate(errp, local_err); 9890998d58SDaniel P. Berrange object_unref(obj); 9990998d58SDaniel P. Berrange return NULL; 10090998d58SDaniel P. Berrange } 10190998d58SDaniel P. Berrange return obj; 10290998d58SDaniel P. Berrange } 10390998d58SDaniel P. Berrange 10490998d58SDaniel P. Berrange 10590998d58SDaniel P. Berrange Object *user_creatable_add_opts(QemuOpts *opts, Error **errp) 10690998d58SDaniel P. Berrange { 10709204eacSEric Blake Visitor *v; 10890998d58SDaniel P. Berrange QDict *pdict; 109*3a464105SIgor Mammedov Object *obj; 110*3a464105SIgor Mammedov const char *id = qemu_opts_id(opts); 111*3a464105SIgor Mammedov const char *type = qemu_opt_get(opts, "qom-type"); 112*3a464105SIgor Mammedov 113*3a464105SIgor Mammedov if (!type) { 114*3a464105SIgor Mammedov error_setg(errp, QERR_MISSING_PARAMETER, "qom-type"); 115*3a464105SIgor Mammedov return NULL; 116*3a464105SIgor Mammedov } 117*3a464105SIgor Mammedov if (!id) { 118*3a464105SIgor Mammedov error_setg(errp, QERR_MISSING_PARAMETER, "id"); 119*3a464105SIgor Mammedov return NULL; 120*3a464105SIgor Mammedov } 121*3a464105SIgor Mammedov 122*3a464105SIgor Mammedov pdict = qemu_opts_to_qdict(opts, NULL); 123*3a464105SIgor Mammedov qdict_del(pdict, "qom-type"); 124*3a464105SIgor Mammedov qdict_del(pdict, "id"); 12590998d58SDaniel P. Berrange 12609204eacSEric Blake v = opts_visitor_new(opts); 127*3a464105SIgor Mammedov obj = user_creatable_add_type(type, id, pdict, v, errp); 12809204eacSEric Blake visit_free(v); 129*3a464105SIgor Mammedov 13090998d58SDaniel P. Berrange QDECREF(pdict); 13190998d58SDaniel P. Berrange return obj; 13290998d58SDaniel P. Berrange } 13390998d58SDaniel P. Berrange 13490998d58SDaniel P. Berrange 13590998d58SDaniel P. Berrange int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp) 13690998d58SDaniel P. Berrange { 13790998d58SDaniel P. Berrange bool (*type_predicate)(const char *) = opaque; 13890998d58SDaniel P. Berrange Object *obj = NULL; 13951b9b478SMarkus Armbruster Error *err = NULL; 14090998d58SDaniel P. Berrange const char *type; 14190998d58SDaniel P. Berrange 14290998d58SDaniel P. Berrange type = qemu_opt_get(opts, "qom-type"); 14390998d58SDaniel P. Berrange if (type && type_predicate && 14490998d58SDaniel P. Berrange !type_predicate(type)) { 14590998d58SDaniel P. Berrange return 0; 14690998d58SDaniel P. Berrange } 14790998d58SDaniel P. Berrange 14851b9b478SMarkus Armbruster obj = user_creatable_add_opts(opts, &err); 14990998d58SDaniel P. Berrange if (!obj) { 15051b9b478SMarkus Armbruster error_report_err(err); 15190998d58SDaniel P. Berrange return -1; 15290998d58SDaniel P. Berrange } 15390998d58SDaniel P. Berrange object_unref(obj); 15490998d58SDaniel P. Berrange return 0; 15590998d58SDaniel P. Berrange } 15690998d58SDaniel P. Berrange 15790998d58SDaniel P. Berrange 15890998d58SDaniel P. Berrange void user_creatable_del(const char *id, Error **errp) 15990998d58SDaniel P. Berrange { 16090998d58SDaniel P. Berrange Object *container; 16190998d58SDaniel P. Berrange Object *obj; 16290998d58SDaniel P. Berrange 16390998d58SDaniel P. Berrange container = object_get_objects_root(); 16490998d58SDaniel P. Berrange obj = object_resolve_path_component(container, id); 16590998d58SDaniel P. Berrange if (!obj) { 16690998d58SDaniel P. Berrange error_setg(errp, "object '%s' not found", id); 16790998d58SDaniel P. Berrange return; 16890998d58SDaniel P. Berrange } 16990998d58SDaniel P. Berrange 17090998d58SDaniel P. Berrange if (!user_creatable_can_be_deleted(USER_CREATABLE(obj), errp)) { 17190998d58SDaniel P. Berrange error_setg(errp, "object '%s' is in use, can not be deleted", id); 17290998d58SDaniel P. Berrange return; 17390998d58SDaniel P. Berrange } 17490998d58SDaniel P. Berrange object_unparent(obj); 17590998d58SDaniel P. Berrange } 17690998d58SDaniel P. Berrange 177269e09f3SIgor Mammedov static void register_types(void) 178269e09f3SIgor Mammedov { 179269e09f3SIgor Mammedov static const TypeInfo uc_interface_info = { 180269e09f3SIgor Mammedov .name = TYPE_USER_CREATABLE, 181269e09f3SIgor Mammedov .parent = TYPE_INTERFACE, 182269e09f3SIgor Mammedov .class_size = sizeof(UserCreatableClass), 183269e09f3SIgor Mammedov }; 184269e09f3SIgor Mammedov 185269e09f3SIgor Mammedov type_register_static(&uc_interface_info); 186269e09f3SIgor Mammedov } 187269e09f3SIgor Mammedov 188269e09f3SIgor Mammedov type_init(register_types) 189