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); 65e1ff3c67SIgor Mammedov if (object_property_find(obj, "id", NULL)) { 66e1ff3c67SIgor Mammedov object_property_set_str(obj, id, "id", &local_err); 67e1ff3c67SIgor Mammedov if (local_err) { 68e1ff3c67SIgor Mammedov goto out; 69e1ff3c67SIgor Mammedov } 70e1ff3c67SIgor Mammedov } 71ad739706SEric Blake visit_start_struct(v, NULL, NULL, 0, &local_err); 7290998d58SDaniel P. Berrange if (local_err) { 7390998d58SDaniel P. Berrange goto out; 7490998d58SDaniel P. Berrange } 75ad739706SEric Blake for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) { 76ad739706SEric Blake object_property_set(obj, v, e->key, &local_err); 77ad739706SEric Blake if (local_err) { 78ad739706SEric Blake break; 7990998d58SDaniel P. Berrange } 8090998d58SDaniel P. Berrange } 8115c2f669SEric Blake if (!local_err) { 8215c2f669SEric Blake visit_check_struct(v, &local_err); 8315c2f669SEric Blake } 841158bb2aSEric Blake visit_end_struct(v, NULL); 85ad739706SEric Blake if (local_err) { 86ad739706SEric Blake goto out; 87ad739706SEric Blake } 8890998d58SDaniel P. Berrange 8990998d58SDaniel P. Berrange object_property_add_child(object_get_objects_root(), 9090998d58SDaniel P. Berrange id, obj, &local_err); 9190998d58SDaniel P. Berrange if (local_err) { 9290998d58SDaniel P. Berrange goto out; 9390998d58SDaniel P. Berrange } 9490998d58SDaniel P. Berrange 9590998d58SDaniel P. Berrange user_creatable_complete(obj, &local_err); 9690998d58SDaniel P. Berrange if (local_err) { 9790998d58SDaniel P. Berrange object_property_del(object_get_objects_root(), 9890998d58SDaniel P. Berrange id, &error_abort); 9990998d58SDaniel P. Berrange goto out; 10090998d58SDaniel P. Berrange } 10190998d58SDaniel P. Berrange out: 10290998d58SDaniel P. Berrange if (local_err) { 10390998d58SDaniel P. Berrange error_propagate(errp, local_err); 10490998d58SDaniel P. Berrange object_unref(obj); 10590998d58SDaniel P. Berrange return NULL; 10690998d58SDaniel P. Berrange } 10790998d58SDaniel P. Berrange return obj; 10890998d58SDaniel P. Berrange } 10990998d58SDaniel P. Berrange 11090998d58SDaniel P. Berrange 11190998d58SDaniel P. Berrange Object *user_creatable_add_opts(QemuOpts *opts, Error **errp) 11290998d58SDaniel P. Berrange { 11309204eacSEric Blake Visitor *v; 11490998d58SDaniel P. Berrange QDict *pdict; 1153a464105SIgor Mammedov Object *obj; 1163a464105SIgor Mammedov const char *id = qemu_opts_id(opts); 1179a6d1acbSEric Blake char *type = qemu_opt_get_del(opts, "qom-type"); 1183a464105SIgor Mammedov 1193a464105SIgor Mammedov if (!type) { 1203a464105SIgor Mammedov error_setg(errp, QERR_MISSING_PARAMETER, "qom-type"); 1213a464105SIgor Mammedov return NULL; 1223a464105SIgor Mammedov } 1233a464105SIgor Mammedov if (!id) { 1243a464105SIgor Mammedov error_setg(errp, QERR_MISSING_PARAMETER, "id"); 125*08329701SEric Blake qemu_opt_set(opts, "qom-type", type, &error_abort); 1269a6d1acbSEric Blake g_free(type); 1273a464105SIgor Mammedov return NULL; 1283a464105SIgor Mammedov } 1293a464105SIgor Mammedov 1309a6d1acbSEric Blake qemu_opts_set_id(opts, NULL); 1313a464105SIgor Mammedov pdict = qemu_opts_to_qdict(opts, NULL); 13290998d58SDaniel P. Berrange 13309204eacSEric Blake v = opts_visitor_new(opts); 1343a464105SIgor Mammedov obj = user_creatable_add_type(type, id, pdict, v, errp); 13509204eacSEric Blake visit_free(v); 1363a464105SIgor Mammedov 1379a6d1acbSEric Blake qemu_opts_set_id(opts, (char *) id); 138*08329701SEric Blake qemu_opt_set(opts, "qom-type", type, &error_abort); 1399a6d1acbSEric Blake g_free(type); 14090998d58SDaniel P. Berrange QDECREF(pdict); 14190998d58SDaniel P. Berrange return obj; 14290998d58SDaniel P. Berrange } 14390998d58SDaniel P. Berrange 14490998d58SDaniel P. Berrange 14590998d58SDaniel P. Berrange int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp) 14690998d58SDaniel P. Berrange { 14790998d58SDaniel P. Berrange bool (*type_predicate)(const char *) = opaque; 14890998d58SDaniel P. Berrange Object *obj = NULL; 14951b9b478SMarkus Armbruster Error *err = NULL; 15090998d58SDaniel P. Berrange const char *type; 15190998d58SDaniel P. Berrange 15290998d58SDaniel P. Berrange type = qemu_opt_get(opts, "qom-type"); 15390998d58SDaniel P. Berrange if (type && type_predicate && 15490998d58SDaniel P. Berrange !type_predicate(type)) { 15590998d58SDaniel P. Berrange return 0; 15690998d58SDaniel P. Berrange } 15790998d58SDaniel P. Berrange 15851b9b478SMarkus Armbruster obj = user_creatable_add_opts(opts, &err); 15990998d58SDaniel P. Berrange if (!obj) { 16051b9b478SMarkus Armbruster error_report_err(err); 16190998d58SDaniel P. Berrange return -1; 16290998d58SDaniel P. Berrange } 16390998d58SDaniel P. Berrange object_unref(obj); 16490998d58SDaniel P. Berrange return 0; 16590998d58SDaniel P. Berrange } 16690998d58SDaniel P. Berrange 16790998d58SDaniel P. Berrange 16890998d58SDaniel P. Berrange void user_creatable_del(const char *id, Error **errp) 16990998d58SDaniel P. Berrange { 17090998d58SDaniel P. Berrange Object *container; 17190998d58SDaniel P. Berrange Object *obj; 17290998d58SDaniel P. Berrange 17390998d58SDaniel P. Berrange container = object_get_objects_root(); 17490998d58SDaniel P. Berrange obj = object_resolve_path_component(container, id); 17590998d58SDaniel P. Berrange if (!obj) { 17690998d58SDaniel P. Berrange error_setg(errp, "object '%s' not found", id); 17790998d58SDaniel P. Berrange return; 17890998d58SDaniel P. Berrange } 17990998d58SDaniel P. Berrange 18090998d58SDaniel P. Berrange if (!user_creatable_can_be_deleted(USER_CREATABLE(obj), errp)) { 18190998d58SDaniel P. Berrange error_setg(errp, "object '%s' is in use, can not be deleted", id); 18290998d58SDaniel P. Berrange return; 18390998d58SDaniel P. Berrange } 18490998d58SDaniel P. Berrange object_unparent(obj); 18590998d58SDaniel P. Berrange } 18690998d58SDaniel P. Berrange 187269e09f3SIgor Mammedov static void register_types(void) 188269e09f3SIgor Mammedov { 189269e09f3SIgor Mammedov static const TypeInfo uc_interface_info = { 190269e09f3SIgor Mammedov .name = TYPE_USER_CREATABLE, 191269e09f3SIgor Mammedov .parent = TYPE_INTERFACE, 192269e09f3SIgor Mammedov .class_size = sizeof(UserCreatableClass), 193269e09f3SIgor Mammedov }; 194269e09f3SIgor Mammedov 195269e09f3SIgor Mammedov type_register_static(&uc_interface_info); 196269e09f3SIgor Mammedov } 197269e09f3SIgor Mammedov 198269e09f3SIgor Mammedov type_init(register_types) 199