Exemplo n.º 1
0
static void qdict_iterapi_test(void)
{
    int count;
    const QDictEntry *ent;
    QDict *tests_dict = qdict_new();

    g_assert(qdict_first(tests_dict) == NULL);

    qdict_put(tests_dict, "key1", qint_from_int(1));
    qdict_put(tests_dict, "key2", qint_from_int(2));
    qdict_put(tests_dict, "key3", qint_from_int(3));

    count = 0;
    for (ent = qdict_first(tests_dict); ent; ent = qdict_next(tests_dict, ent)){
        g_assert(qdict_haskey(tests_dict, qdict_entry_key(ent)) == 1);
        count++;
    }

    g_assert(count == qdict_size(tests_dict));

    /* Do it again to test restarting */
    count = 0;
    for (ent = qdict_first(tests_dict); ent; ent = qdict_next(tests_dict, ent)){
        g_assert(qdict_haskey(tests_dict, qdict_entry_key(ent)) == 1);
        count++;
    }

    g_assert(count == qdict_size(tests_dict));

    QDECREF(tests_dict);
}
Exemplo n.º 2
0
static QDict *qmp_dispatch_check_obj(const QObject *request, bool allow_oob,
                                     Error **errp)
{
    const char *exec_key = NULL;
    const QDictEntry *ent;
    const char *arg_name;
    const QObject *arg_obj;
    QDict *dict;

    dict = qobject_to(QDict, request);
    if (!dict) {
        error_setg(errp, "QMP input must be a JSON object");
        return NULL;
    }

    for (ent = qdict_first(dict); ent;
         ent = qdict_next(dict, ent)) {
        arg_name = qdict_entry_key(ent);
        arg_obj = qdict_entry_value(ent);

        if (!strcmp(arg_name, "execute")
            || (!strcmp(arg_name, "exec-oob") && allow_oob)) {
            if (qobject_type(arg_obj) != QTYPE_QSTRING) {
                error_setg(errp, "QMP input member '%s' must be a string",
                           arg_name);
                return NULL;
            }
            if (exec_key) {
                error_setg(errp, "QMP input member '%s' clashes with '%s'",
                           arg_name, exec_key);
                return NULL;
            }
            exec_key = arg_name;
        } else if (!strcmp(arg_name, "arguments")) {
            if (qobject_type(arg_obj) != QTYPE_QDICT) {
                error_setg(errp,
                           "QMP input member 'arguments' must be an object");
                return NULL;
            }
        } else if (!strcmp(arg_name, "id")) {
            continue;
        } else {
            error_setg(errp, "QMP input member '%s' is unexpected",
                       arg_name);
            return NULL;
        }
    }

    if (!exec_key) {
        error_setg(errp, "QMP input lacks member 'execute'");
        return NULL;
    }

    return dict;
}
Exemplo n.º 3
0
static int qdict_count_entries(QDict *dict)
{
    const QDictEntry *e;
    int count = 0;

    for (e = qdict_first(dict); e; e = qdict_next(dict, e)) {
        count++;
    }

    return count;
}
Exemplo n.º 4
0
static bool ssh_has_filename_options_conflict(QDict *options, Error **errp)
{
    const QDictEntry *qe;

    for (qe = qdict_first(options); qe; qe = qdict_next(options, qe)) {
        if (!strcmp(qe->key, "host") ||
            !strcmp(qe->key, "port") ||
            !strcmp(qe->key, "path") ||
            !strcmp(qe->key, "user") ||
            !strcmp(qe->key, "host_key_check") ||
            strstart(qe->key, "server.", NULL))
        {
            error_setg(errp, "Option '%s' cannot be used with a file name",
                       qe->key);
            return true;
        }
    }

    return false;
}
Exemplo n.º 5
0
static QDict *qmp_dispatch_check_obj(const QObject *request, Error **errp)
{
    const QDictEntry *ent;
    const char *arg_name;
    const QObject *arg_obj;
    bool has_exec_key = false;
    QDict *dict = NULL;

    if (qobject_type(request) != QTYPE_QDICT) {
        error_set(errp, QERR_QMP_BAD_INPUT_OBJECT,
                  "request is not a dictionary");
        return NULL;
    }

    dict = qobject_to_qdict(request);

    for (ent = qdict_first(dict); ent;
         ent = qdict_next(dict, ent)) {
        arg_name = qdict_entry_key(ent);
        arg_obj = qdict_entry_value(ent);

        if (!strcmp(arg_name, "execute")) {
            if (qobject_type(arg_obj) != QTYPE_QSTRING) {
                error_set(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "execute",
                          "string");
                return NULL;
            }
            has_exec_key = true;
        } else if (strcmp(arg_name, "arguments")) {
            error_set(errp, QERR_QMP_EXTRA_MEMBER, arg_name);
            return NULL;
        }
    }

    if (!has_exec_key) {
        error_set(errp, QERR_QMP_BAD_INPUT_OBJECT, "execute");
        return NULL;
    }

    return dict;
}
Exemplo n.º 6
0
void update_insn_class_info(const char* class_idx, const char* insn)
{
	// Assuming class indexes are positive
	const QDictEntry* pentry;
	int64_t idx= -1;
	assert(class_info != NULL);
	pentry = qdict_first(class_info);
	do
	{
		QObject* temp = qdict_entry_value(pentry);		
		QDict* pdict = qobject_to_qdict(temp);
		idx = qdict_get_int(pdict, "idx");
		const char * str = qdict_get_str(pdict, "class_name");
		if(strcmp(str, class_idx) == 0)
			break;
		idx = -1;
		pentry = qdict_next(class_info, pentry);
	} while(pentry != NULL);
	assert(insn_map != NULL);
	if(idx != -1)
		get_map_entry(insn)->instruction_type = idx;
}
Exemplo n.º 7
0
static bool nfs_has_filename_options_conflict(QDict *options, Error **errp)
{
    const QDictEntry *qe;

    for (qe = qdict_first(options); qe; qe = qdict_next(options, qe)) {
        if (!strcmp(qe->key, "host") ||
            !strcmp(qe->key, "path") ||
            !strcmp(qe->key, "user") ||
            !strcmp(qe->key, "group") ||
            !strcmp(qe->key, "tcp-syn-count") ||
            !strcmp(qe->key, "readahead-size") ||
            !strcmp(qe->key, "page-cache-size") ||
            !strcmp(qe->key, "debug") ||
            strstart(qe->key, "server.", NULL))
        {
            error_setg(errp, "Option %s cannot be used with a filename",
                       qe->key);
            return true;
        }
    }

    return false;
}
Exemplo n.º 8
0
Object *user_creatable_add_type(const char *type, const char *id,
                                const QDict *qdict,
                                Visitor *v, Error **errp)
{
    Object *obj;
    ObjectClass *klass;
    const QDictEntry *e;
    Error *local_err = NULL;

    klass = object_class_by_name(type);
    if (!klass) {
        error_setg(errp, "invalid object type: %s", type);
        return NULL;
    }

    if (!object_class_dynamic_cast(klass, TYPE_USER_CREATABLE)) {
        error_setg(errp, "object type '%s' isn't supported by object-add",
                   type);
        return NULL;
    }

    if (object_class_is_abstract(klass)) {
        error_setg(errp, "object type '%s' is abstract", type);
        return NULL;
    }

    assert(qdict);
    obj = object_new(type);
    visit_start_struct(v, NULL, NULL, 0, &local_err);
    if (local_err) {
        goto out;
    }
    for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
        object_property_set(obj, v, e->key, &local_err);
        if (local_err) {
            break;
        }
    }
    if (!local_err) {
        visit_check_struct(v, &local_err);
    }
    visit_end_struct(v, NULL);
    if (local_err) {
        goto out;
    }

    if (id != NULL) {
        object_property_add_child(object_get_objects_root(),
                                  id, obj, &local_err);
        if (local_err) {
            goto out;
        }
    }

    user_creatable_complete(USER_CREATABLE(obj), &local_err);
    if (local_err) {
        if (id != NULL) {
            object_property_del(object_get_objects_root(),
                                id, &error_abort);
        }
        goto out;
    }
out:
    if (local_err) {
        error_propagate(errp, local_err);
        object_unref(obj);
        return NULL;
    }
    return obj;
}
Exemplo n.º 9
0
Arquivo: rbd.c Projeto: CTU-IIG/qemu
static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
                         Error **errp)
{
    BDRVRBDState *s = bs->opaque;
    BlockdevOptionsRbd *opts = NULL;
    const QDictEntry *e;
    Error *local_err = NULL;
    char *keypairs, *secretid;
    int r;

    keypairs = g_strdup(qdict_get_try_str(options, "=keyvalue-pairs"));
    if (keypairs) {
        qdict_del(options, "=keyvalue-pairs");
    }

    secretid = g_strdup(qdict_get_try_str(options, "password-secret"));
    if (secretid) {
        qdict_del(options, "password-secret");
    }

    r = qemu_rbd_convert_options(options, &opts, &local_err);
    if (local_err) {
        /* If keypairs are present, that means some options are present in
         * the modern option format.  Don't attempt to parse legacy option
         * formats, as we won't support mixed usage. */
        if (keypairs) {
            error_propagate(errp, local_err);
            goto out;
        }

        /* If the initial attempt to convert and process the options failed,
         * we may be attempting to open an image file that has the rbd options
         * specified in the older format consisting of all key/value pairs
         * encoded in the filename.  Go ahead and attempt to parse the
         * filename, and see if we can pull out the required options. */
        r = qemu_rbd_attempt_legacy_options(options, &opts, &keypairs);
        if (r < 0) {
            /* Propagate the original error, not the legacy parsing fallback
             * error, as the latter was just a best-effort attempt. */
            error_propagate(errp, local_err);
            goto out;
        }
        /* Take care whenever deciding to actually deprecate; once this ability
         * is removed, we will not be able to open any images with legacy-styled
         * backing image strings. */
        warn_report("RBD options encoded in the filename as keyvalue pairs "
                    "is deprecated");
    }

    /* Remove the processed options from the QDict (the visitor processes
     * _all_ options in the QDict) */
    while ((e = qdict_first(options))) {
        qdict_del(options, e->key);
    }

    r = qemu_rbd_connect(&s->cluster, &s->io_ctx, opts,
                         !(flags & BDRV_O_NOCACHE), keypairs, secretid, errp);
    if (r < 0) {
        goto out;
    }

    s->snap = g_strdup(opts->snapshot);
    s->image_name = g_strdup(opts->image);

    /* rbd_open is always r/w */
    r = rbd_open(s->io_ctx, s->image_name, &s->image, s->snap);
    if (r < 0) {
        error_setg_errno(errp, -r, "error reading header from %s",
                         s->image_name);
        goto failed_open;
    }

    /* If we are using an rbd snapshot, we must be r/o, otherwise
     * leave as-is */
    if (s->snap != NULL) {
        r = bdrv_apply_auto_read_only(bs, "rbd snapshots are read-only", errp);
        if (r < 0) {
            rbd_close(s->image);
            goto failed_open;
        }
    }

    r = 0;
    goto out;

failed_open:
    rados_ioctx_destroy(s->io_ctx);
    g_free(s->snap);
    g_free(s->image_name);
    rados_shutdown(s->cluster);
out:
    qapi_free_BlockdevOptionsRbd(opts);
    g_free(keypairs);
    g_free(secretid);
    return r;
}
Exemplo n.º 10
0
static void cpu_model_from_info(S390CPUModel *model, const CpuModelInfo *info,
                                Error **errp)
{
    const QDict *qdict = NULL;
    const QDictEntry *e;
    Visitor *visitor;
    ObjectClass *oc;
    S390CPU *cpu;
    Object *obj;

    if (info->props) {
        qdict = qobject_to_qdict(info->props);
        if (!qdict) {
            error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
            return;
        }
    }

    oc = cpu_class_by_name(TYPE_S390_CPU, info->name);
    if (!oc) {
        error_setg(errp, "The CPU definition \'%s\' is unknown.", info->name);
        return;
    }
    if (S390_CPU_CLASS(oc)->kvm_required && !kvm_enabled()) {
        error_setg(errp, "The CPU definition '%s' requires KVM", info->name);
        return;
    }
    obj = object_new(object_class_get_name(oc));
    cpu = S390_CPU(obj);

    if (!cpu->model) {
        error_setg(errp, "Details about the host CPU model are not available, "
                         "it cannot be used.");
        object_unref(obj);
        return;
    }

    if (qdict) {
        visitor = qobject_input_visitor_new(info->props);
        visit_start_struct(visitor, NULL, NULL, 0, errp);
        if (*errp) {
            object_unref(obj);
            return;
        }
        for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
            object_property_set(obj, visitor, e->key, errp);
            if (*errp) {
                break;
            }
        }
        if (!*errp) {
            visit_check_struct(visitor, errp);
        }
        visit_end_struct(visitor, NULL);
        visit_free(visitor);
        if (*errp) {
            object_unref(obj);
            return;
        }
    }

    /* copy the model and throw the cpu away */
    memcpy(model, cpu->model, sizeof(*model));
    object_unref(obj);
}
Exemplo n.º 11
0
static int qemu_rbd_open(BlockDriverState *bs, QDict *options, int flags,
                         Error **errp)
{
    BDRVRBDState *s = bs->opaque;
    BlockdevOptionsRbd *opts = NULL;
    Visitor *v;
    QObject *crumpled = NULL;
    const QDictEntry *e;
    Error *local_err = NULL;
    const char *filename;
    char *keypairs, *secretid;
    int r;

    /* If we are given a filename, parse the filename, with precedence given to
     * filename encoded options */
    filename = qdict_get_try_str(options, "filename");
    if (filename) {
        warn_report("'filename' option specified. "
                    "This is an unsupported option, and may be deprecated "
                    "in the future");
        qemu_rbd_parse_filename(filename, options, &local_err);
        qdict_del(options, "filename");
        if (local_err) {
            error_propagate(errp, local_err);
            return -EINVAL;
        }
    }

    keypairs = g_strdup(qdict_get_try_str(options, "=keyvalue-pairs"));
    if (keypairs) {
        qdict_del(options, "=keyvalue-pairs");
    }

    secretid = g_strdup(qdict_get_try_str(options, "password-secret"));
    if (secretid) {
        qdict_del(options, "password-secret");
    }

    /* Convert the remaining options into a QAPI object */
    crumpled = qdict_crumple(options, errp);
    if (crumpled == NULL) {
        r = -EINVAL;
        goto out;
    }

    v = qobject_input_visitor_new_keyval(crumpled);
    visit_type_BlockdevOptionsRbd(v, NULL, &opts, &local_err);
    visit_free(v);
    qobject_unref(crumpled);

    if (local_err) {
        error_propagate(errp, local_err);
        r = -EINVAL;
        goto out;
    }

    /* Remove the processed options from the QDict (the visitor processes
     * _all_ options in the QDict) */
    while ((e = qdict_first(options))) {
        qdict_del(options, e->key);
    }

    r = qemu_rbd_connect(&s->cluster, &s->io_ctx, opts,
                         !(flags & BDRV_O_NOCACHE), keypairs, secretid, errp);
    if (r < 0) {
        goto out;
    }

    s->snap = g_strdup(opts->snapshot);
    s->image_name = g_strdup(opts->image);

    /* rbd_open is always r/w */
    r = rbd_open(s->io_ctx, s->image_name, &s->image, s->snap);
    if (r < 0) {
        error_setg_errno(errp, -r, "error reading header from %s",
                         s->image_name);
        goto failed_open;
    }

    /* If we are using an rbd snapshot, we must be r/o, otherwise
     * leave as-is */
    if (s->snap != NULL) {
        if (!bdrv_is_read_only(bs)) {
            error_report("Opening rbd snapshots without an explicit "
                         "read-only=on option is deprecated. Future versions "
                         "will refuse to open the image instead of "
                         "automatically marking the image read-only.");
            r = bdrv_set_read_only(bs, true, &local_err);
            if (r < 0) {
                error_propagate(errp, local_err);
                goto failed_open;
            }
        }
    }

    r = 0;
    goto out;

failed_open:
    rados_ioctx_destroy(s->io_ctx);
    g_free(s->snap);
    g_free(s->image_name);
    rados_shutdown(s->cluster);
out:
    qapi_free_BlockdevOptionsRbd(opts);
    g_free(keypairs);
    g_free(secretid);
    return r;
}
Exemplo n.º 12
0
static void qdict_rename_keys_test(void)
{
    QDict *dict = qdict_new();
    QDict *copy;
    QDictRenames *renames;
    Error *local_err = NULL;

    qdict_put_str(dict, "abc", "foo");
    qdict_put_str(dict, "abcdef", "bar");
    qdict_put_int(dict, "number", 42);
    qdict_put_bool(dict, "flag", true);
    qdict_put_null(dict, "nothing");

    /* Empty rename list */
    renames = (QDictRenames[]) {
        { NULL, "this can be anything" }
    };
    copy = qdict_clone_shallow(dict);
    qdict_rename_keys(copy, renames, &error_abort);

    g_assert_cmpstr(qdict_get_str(copy, "abc"), ==, "foo");
    g_assert_cmpstr(qdict_get_str(copy, "abcdef"), ==, "bar");
    g_assert_cmpint(qdict_get_int(copy, "number"), ==, 42);
    g_assert_cmpint(qdict_get_bool(copy, "flag"), ==, true);
    g_assert(qobject_type(qdict_get(copy, "nothing")) == QTYPE_QNULL);
    g_assert_cmpint(qdict_count_entries(copy), ==, 5);

    qobject_unref(copy);

    /* Simple rename of all entries */
    renames = (QDictRenames[]) {
        { "abc",        "str1" },
        { "abcdef",     "str2" },
        { "number",     "int" },
        { "flag",       "bool" },
        { "nothing",    "null" },
        { NULL , NULL }
    };
    copy = qdict_clone_shallow(dict);
    qdict_rename_keys(copy, renames, &error_abort);

    g_assert(!qdict_haskey(copy, "abc"));
    g_assert(!qdict_haskey(copy, "abcdef"));
    g_assert(!qdict_haskey(copy, "number"));
    g_assert(!qdict_haskey(copy, "flag"));
    g_assert(!qdict_haskey(copy, "nothing"));

    g_assert_cmpstr(qdict_get_str(copy, "str1"), ==, "foo");
    g_assert_cmpstr(qdict_get_str(copy, "str2"), ==, "bar");
    g_assert_cmpint(qdict_get_int(copy, "int"), ==, 42);
    g_assert_cmpint(qdict_get_bool(copy, "bool"), ==, true);
    g_assert(qobject_type(qdict_get(copy, "null")) == QTYPE_QNULL);
    g_assert_cmpint(qdict_count_entries(copy), ==, 5);

    qobject_unref(copy);

    /* Renames are processed top to bottom */
    renames = (QDictRenames[]) {
        { "abc",        "tmp" },
        { "abcdef",     "abc" },
        { "number",     "abcdef" },
        { "flag",       "number" },
        { "nothing",    "flag" },
        { "tmp",        "nothing" },
        { NULL , NULL }
    };
    copy = qdict_clone_shallow(dict);
    qdict_rename_keys(copy, renames, &error_abort);

    g_assert_cmpstr(qdict_get_str(copy, "nothing"), ==, "foo");
    g_assert_cmpstr(qdict_get_str(copy, "abc"), ==, "bar");
    g_assert_cmpint(qdict_get_int(copy, "abcdef"), ==, 42);
    g_assert_cmpint(qdict_get_bool(copy, "number"), ==, true);
    g_assert(qobject_type(qdict_get(copy, "flag")) == QTYPE_QNULL);
    g_assert(!qdict_haskey(copy, "tmp"));
    g_assert_cmpint(qdict_count_entries(copy), ==, 5);

    qobject_unref(copy);

    /* Conflicting rename */
    renames = (QDictRenames[]) {
        { "abcdef",     "abc" },
        { NULL , NULL }
    };
    copy = qdict_clone_shallow(dict);
    qdict_rename_keys(copy, renames, &local_err);

    g_assert(local_err != NULL);
    error_free(local_err);
    local_err = NULL;

    g_assert_cmpstr(qdict_get_str(copy, "abc"), ==, "foo");
    g_assert_cmpstr(qdict_get_str(copy, "abcdef"), ==, "bar");
    g_assert_cmpint(qdict_get_int(copy, "number"), ==, 42);
    g_assert_cmpint(qdict_get_bool(copy, "flag"), ==, true);
    g_assert(qobject_type(qdict_get(copy, "nothing")) == QTYPE_QNULL);
    g_assert_cmpint(qdict_count_entries(copy), ==, 5);

    qobject_unref(copy);

    /* Renames in an empty dict */
    renames = (QDictRenames[]) {
        { "abcdef",     "abc" },
        { NULL , NULL }
    };

    qobject_unref(dict);
    dict = qdict_new();

    qdict_rename_keys(dict, renames, &error_abort);
    g_assert(qdict_first(dict) == NULL);

    qobject_unref(dict);
}