struct ovsdb_error *
ovsdb_type_from_json(struct ovsdb_type *type, const struct json *json)
{
ovsdb_base_type_init(&type->value, OVSDB_TYPE_VOID);
type->n_min = 1;
type->n_max = 1;
if (json->type == JSON_STRING) {
return ovsdb_base_type_from_json(&type->key, json);
} else if (json->type == JSON_OBJECT) {
const struct json *key, *value, *min, *max;
struct ovsdb_error *error;
struct ovsdb_parser parser;
ovsdb_parser_init(&parser, json, "ovsdb type");
key = ovsdb_parser_member(&parser, "key", OP_STRING | OP_OBJECT);
value = ovsdb_parser_member(&parser, "value",
OP_STRING | OP_OBJECT | OP_OPTIONAL);
min = ovsdb_parser_member(&parser, "min", OP_INTEGER | OP_OPTIONAL);
max = ovsdb_parser_member(&parser, "max",
OP_INTEGER | OP_STRING | OP_OPTIONAL);
error = ovsdb_parser_finish(&parser);
if (error) {
return error;
}
error = ovsdb_base_type_from_json(&type->key, key);
if (error) {
return error;
}
if (value) {
error = ovsdb_base_type_from_json(&type->value, value);
if (error) {
return error;
}
}
error = n_from_json(min, &type->n_min);
if (error) {
return error;
}
if (max && max->type == JSON_STRING
&& !strcmp(max->u.string, "unlimited")) {
type->n_max = UINT_MAX;
} else {
error = n_from_json(max, &type->n_max);
if (error) {
return error;
}
}
if (!ovsdb_type_is_valid(type)) {
return ovsdb_syntax_error(json, NULL,
"ovsdb type fails constraint checks");
}
return NULL;
} else {
return ovsdb_syntax_error(json, NULL, "ovsdb type expected");
}
}
struct json *
ovsdb_execute(struct ovsdb *db, const struct ovsdb_session *session,
const struct json *params,
long long int elapsed_msec, long long int *timeout_msec)
{
struct ovsdb_execution x;
struct ovsdb_error *error;
struct json *results;
size_t n_operations;
size_t i;
if (params->type != JSON_ARRAY
|| !params->u.array.n
|| params->u.array.elems[0]->type != JSON_STRING
|| strcmp(params->u.array.elems[0]->u.string, db->schema->name)) {
if (params->type != JSON_ARRAY) {
error = ovsdb_syntax_error(params, NULL, "array expected");
} else {
error = ovsdb_syntax_error(params, NULL, "database name expected "
"as first parameter");
}
results = ovsdb_error_to_json(error);
ovsdb_error_destroy(error);
return results;
}
x.db = db;
x.session = session;
x.txn = ovsdb_txn_create(db);
x.symtab = ovsdb_symbol_table_create();
x.durable = false;
x.elapsed_msec = elapsed_msec;
x.timeout_msec = LLONG_MAX;
results = NULL;
results = json_array_create_empty();
n_operations = params->u.array.n - 1;
error = NULL;
for (i = 1; i <= n_operations; i++) {
struct json *operation = params->u.array.elems[i];
struct ovsdb_error *parse_error;
struct ovsdb_parser parser;
struct json *result;
const struct json *op;
/* Parse and execute operation. */
ovsdb_parser_init(&parser, operation,
"ovsdb operation %"PRIuSIZE" of %"PRIuSIZE, i, n_operations);
op = ovsdb_parser_member(&parser, "op", OP_ID);
result = json_object_create();
if (op) {
const char *op_name = json_string(op);
ovsdb_operation_executor *executor = lookup_executor(op_name);
if (executor) {
error = executor(&x, &parser, result);
} else {
ovsdb_parser_raise_error(&parser, "No operation \"%s\"",
op_name);
}
} else {
ovs_assert(ovsdb_parser_has_error(&parser));
}
/* A parse error overrides any other error.
* An error overrides any other result. */
parse_error = ovsdb_parser_finish(&parser);
if (parse_error) {
ovsdb_error_destroy(error);
error = parse_error;
}
if (error) {
json_destroy(result);
result = ovsdb_error_to_json(error);
}
if (error && !strcmp(ovsdb_error_get_tag(error), "not supported")
&& timeout_msec) {
ovsdb_txn_abort(x.txn);
*timeout_msec = x.timeout_msec;
json_destroy(result);
json_destroy(results);
results = NULL;
goto exit;
}
/* Add result to array. */
json_array_add(results, result);
if (error) {
break;
}
}
if (!error) {
error = ovsdb_txn_commit(x.txn, x.durable);
if (error) {
json_array_add(results, ovsdb_error_to_json(error));
}
} else {
ovsdb_txn_abort(x.txn);
}
while (json_array(results)->n < n_operations) {
json_array_add(results, json_null_create());
}
exit:
ovsdb_error_destroy(error);
ovsdb_symbol_table_destroy(x.symtab);
return results;
}
struct ovsdb_error *
ovsdb_base_type_from_json(struct ovsdb_base_type *base,
const struct json *json)
{
struct ovsdb_parser parser;
struct ovsdb_error *error;
const struct json *type, *enum_;
if (json->type == JSON_STRING) {
error = ovsdb_atomic_type_from_json(&base->type, json);
if (error) {
return error;
}
ovsdb_base_type_init(base, base->type);
return NULL;
}
ovsdb_parser_init(&parser, json, "ovsdb type");
type = ovsdb_parser_member(&parser, "type", OP_STRING);
if (ovsdb_parser_has_error(&parser)) {
base->type = OVSDB_TYPE_VOID;
return ovsdb_parser_finish(&parser);
}
error = ovsdb_atomic_type_from_json(&base->type, type);
if (error) {
return error;
}
ovsdb_base_type_init(base, base->type);
enum_ = ovsdb_parser_member(&parser, "enum", OP_ANY | OP_OPTIONAL);
if (enum_) {
base->enum_ = xmalloc(sizeof *base->enum_);
error = ovsdb_datum_from_json(
base->enum_, ovsdb_base_type_get_enum_type(base->type),
enum_, NULL);
if (error) {
free(base->enum_);
base->enum_ = NULL;
}
} else if (base->type == OVSDB_TYPE_INTEGER) {
const struct json *min, *max;
min = ovsdb_parser_member(&parser, "minInteger",
OP_INTEGER | OP_OPTIONAL);
max = ovsdb_parser_member(&parser, "maxInteger",
OP_INTEGER | OP_OPTIONAL);
base->u.integer.min = min ? min->u.integer : INT64_MIN;
base->u.integer.max = max ? max->u.integer : INT64_MAX;
if (base->u.integer.min > base->u.integer.max) {
error = ovsdb_syntax_error(json, NULL,
"minInteger exceeds maxInteger");
}
} else if (base->type == OVSDB_TYPE_REAL) {
const struct json *min, *max;
min = ovsdb_parser_member(&parser, "minReal", OP_NUMBER | OP_OPTIONAL);
max = ovsdb_parser_member(&parser, "maxReal", OP_NUMBER | OP_OPTIONAL);
base->u.real.min = min ? json_real(min) : -DBL_MAX;
base->u.real.max = max ? json_real(max) : DBL_MAX;
if (base->u.real.min > base->u.real.max) {
error = ovsdb_syntax_error(json, NULL, "minReal exceeds maxReal");
}
} else if (base->type == OVSDB_TYPE_STRING) {
if (!error) {
error = parse_optional_uint(&parser, "minLength",
&base->u.string.minLen);
}
if (!error) {
error = parse_optional_uint(&parser, "maxLength",
&base->u.string.maxLen);
}
if (!error && base->u.string.minLen > base->u.string.maxLen) {
error = ovsdb_syntax_error(json, NULL,
"minLength exceeds maxLength");
}
} else if (base->type == OVSDB_TYPE_UUID) {
const struct json *refTable;
refTable = ovsdb_parser_member(&parser, "refTable",
OP_ID | OP_OPTIONAL);
if (refTable) {
const struct json *refType;
base->u.uuid.refTableName = xstrdup(refTable->u.string);
/* We can't set base->u.uuid.refTable here because we don't have
* enough context (we might not even be running in ovsdb-server).
* ovsdb_create() will set refTable later. */
refType = ovsdb_parser_member(&parser, "refType",
OP_ID | OP_OPTIONAL);
if (refType) {
const char *refType_s = json_string(refType);
if (!strcmp(refType_s, "strong")) {
base->u.uuid.refType = OVSDB_REF_STRONG;
} else if (!strcmp(refType_s, "weak")) {
base->u.uuid.refType = OVSDB_REF_WEAK;
} else {
error = ovsdb_syntax_error(json, NULL, "refType must be "
"\"strong\" or \"weak\" (not "
"\"%s\")", refType_s);
}
} else {
base->u.uuid.refType = OVSDB_REF_STRONG;
}
}
}
if (error) {
ovsdb_error_destroy(ovsdb_parser_finish(&parser));
} else {
error = ovsdb_parser_finish(&parser);
}
if (error) {
ovsdb_base_type_destroy(base);
base->type = OVSDB_TYPE_VOID;
}
return error;
}