static struct oval_value *oval_object_getentval(struct oval_object *obj, const char *name)
{
struct oval_value *val;
struct oval_entity *ent;
struct oval_object_content *con;
struct oval_object_content_iterator *cit;
char *ent_name;
cit = oval_object_get_object_contents(obj);
val = NULL;
while (oval_object_content_iterator_has_more(cit)) {
con = oval_object_content_iterator_next(cit);
if (oval_object_content_get_type(con) != OVAL_OBJECTCONTENT_ENTITY)
continue;
ent = oval_object_content_get_entity(con);
ent_name = oval_entity_get_name(ent);
if (strcmp(ent_name, name) != 0)
continue;
val = oval_entity_get_value(ent);
break;
}
oval_object_content_iterator_free(cit);
return(val);
}
static struct oval_variable *oval_probe_variable_objgetvar(struct oval_object *obj)
{
struct oval_entity *ent;
struct oval_object_content *con;
struct oval_object_content_iterator *cit;
struct oval_variable *var;
char *ent_name;
var = NULL;
cit = oval_object_get_object_contents(obj);
while (oval_object_content_iterator_has_more(cit)) {
con = oval_object_content_iterator_next(cit);
if (oval_object_content_get_type(con) != OVAL_OBJECTCONTENT_ENTITY)
continue;
ent = oval_object_content_get_entity(con);
ent_name = oval_entity_get_name(ent);
if (strcmp(ent_name, "var_ref") != 0)
continue;
var = oval_entity_get_variable(ent);
break;
}
oval_object_content_iterator_free(cit);
return(var);
}
struct oval_entity *oval_entity_clone(struct oval_definition_model *new_model, struct oval_entity *old_entity) {
struct oval_entity *new_entity = oval_entity_new(new_model);
oval_datatype_t datatype = oval_entity_get_datatype(old_entity);
oval_entity_set_datatype(new_entity, datatype);
int mask = oval_entity_get_mask(old_entity);
oval_entity_set_mask(new_entity, mask);
bool xsi_nil = oval_entity_get_xsi_nil(old_entity);
oval_entity_set_xsi_nil(new_entity, xsi_nil);
char *name = oval_entity_get_name(old_entity);
oval_entity_set_name(new_entity, name);
oval_operation_t operation = oval_entity_get_operation(old_entity);
oval_entity_set_operation(new_entity, operation);
oval_entity_type_t type = oval_entity_get_type(old_entity);
oval_entity_set_type(new_entity, type);
struct oval_value *value = oval_entity_get_value(old_entity);
if (value) {
oval_entity_set_value(new_entity, oval_value_clone(value));
}
struct oval_variable *old_variable = oval_entity_get_variable(old_entity);
if (old_variable) {
oval_entity_set_variable(new_entity, oval_variable_clone(new_model, old_variable));
}
oval_entity_varref_type_t reftype = oval_entity_get_varref_type(old_entity);
oval_entity_set_varref_type(new_entity, reftype);
return new_entity;
}
static SEXP_t *oval_entity_to_sexp(struct oval_entity *ent)
{
SEXP_t *elm, *elm_name;
SEXP_t *r0, *r1, *r2;
oval_datatype_t datatype;
oval_entity_varref_type_t vr_type;
elm_name = SEXP_list_new(r0 = SEXP_string_newf("%s", oval_entity_get_name(ent)),
/* operation */
r1 = SEXP_string_new(":operation", 10),
r2 = SEXP_number_newu_32(oval_entity_get_operation(ent)), NULL);
SEXP_vfree(r0, r1, r2, NULL);
if (oval_entity_get_mask(ent)) {
SEXP_list_add(elm_name, r0 = SEXP_string_new("mask", 4));
SEXP_free(r0);
}
elm = SEXP_list_new(NULL);
datatype = oval_entity_get_datatype(ent);
probe_ent_setdatatype(elm, datatype);
vr_type = oval_entity_get_varref_type(ent);
if (vr_type == OVAL_ENTITY_VARREF_ATTRIBUTE
|| vr_type == OVAL_ENTITY_VARREF_ELEMENT) {
/* var_ref */
struct oval_variable *var;
var = oval_entity_get_variable(ent);
SEXP_list_add(elm_name, r0 = SEXP_string_new(":var_ref", 8));
SEXP_list_add(elm_name, r1 = SEXP_string_newf("%s", oval_variable_get_id(var)));
SEXP_list_add(elm, elm_name);
SEXP_vfree(r0, r1, elm_name, NULL);
} else {
/* value */
struct oval_value *val;
SEXP_list_add(elm, elm_name);
SEXP_free(elm_name);
val = oval_entity_get_value(ent);
if (datatype != OVAL_DATATYPE_RECORD
&& val != NULL) {
SEXP_t *val_sexp;
val_sexp = oval_value_to_sexp(val, datatype);
if (val_sexp != NULL) {
SEXP_list_add(elm, val_sexp);
SEXP_free(val_sexp);
}
}
}
return (elm);
}
static oval_result_t eval_item(struct oval_syschar_model *syschar_model, struct oval_sysitem *cur_sysitem, struct oval_state *state)
{
struct oval_state_content_iterator *state_contents_itr;
struct oresults ste_ores;
oval_operator_t operator;
oval_result_t result = OVAL_RESULT_ERROR;
ores_clear(&ste_ores);
state_contents_itr = oval_state_get_contents(state);
while (oval_state_content_iterator_has_more(state_contents_itr)) {
struct oval_state_content *content;
struct oval_entity *state_entity;
char *state_entity_name;
oval_operation_t state_entity_operation;
oval_check_t entity_check;
oval_existence_t check_existence;
oval_result_t ste_ent_res;
struct oval_sysent_iterator *item_entities_itr;
struct oresults ent_ores;
struct oval_status_counter counter;
bool found_matching_item;
if ((content = oval_state_content_iterator_next(state_contents_itr)) == NULL) {
oscap_seterr(OSCAP_EFAMILY_OVAL, "OVAL internal error: found NULL state content");
goto fail;
}
if ((state_entity = oval_state_content_get_entity(content)) == NULL) {
oscap_seterr(OSCAP_EFAMILY_OVAL, "OVAL internal error: found NULL entity");
goto fail;
}
if ((state_entity_name = oval_entity_get_name(state_entity)) == NULL) {
oscap_seterr(OSCAP_EFAMILY_OVAL, "OVAL internal error: found NULL entity name");
goto fail;
}
if (oscap_streq(state_entity_name, "line") &&
oval_state_get_subtype(state) == (oval_subtype_t) OVAL_INDEPENDENT_TEXT_FILE_CONTENT) {
/* Hack: textfilecontent_state/line shall be compared against textfilecontent_item/text.
*
* textfilecontent_test and textfilecontent54_test share the same syschar
* (textfilecontent_item). In OVAL 5.3 and below this syschar did not hold any usable
* information ('text' ent). In OVAL 5.4 textfilecontent_test was deprecated. But the
* 'text' ent has been added to textfilecontent_item, making it potentially usable. */
oval_schema_version_t over = oval_state_get_platform_schema_version(state);
if (oval_schema_version_cmp(over, OVAL_SCHEMA_VERSION(5.4)) >= 0) {
/* The OVAL-5.3 does not have textfilecontent_item/text */
state_entity_name = "text";
}
}
entity_check = oval_state_content_get_ent_check(content);
check_existence = oval_state_content_get_check_existence(content);
state_entity_operation = oval_entity_get_operation(state_entity);
ores_clear(&ent_ores);
found_matching_item = false;
oval_status_counter_clear(&counter);
item_entities_itr = oval_sysitem_get_sysents(cur_sysitem);
while (oval_sysent_iterator_has_more(item_entities_itr)) {
struct oval_sysent *item_entity;
oval_result_t ent_val_res;
char *item_entity_name;
oval_syschar_status_t item_status;
item_entity = oval_sysent_iterator_next(item_entities_itr);
if (item_entity == NULL) {
oscap_seterr(OSCAP_EFAMILY_OVAL, "OVAL internal error: found NULL sysent");
oval_sysent_iterator_free(item_entities_itr);
goto fail;
}
item_status = oval_sysent_get_status(item_entity);
oval_status_counter_add_status(&counter, item_status);
item_entity_name = oval_sysent_get_name(item_entity);
if (strcmp(item_entity_name, state_entity_name))
continue;
found_matching_item = true;
/* copy mask attribute from state to item */
if (oval_entity_get_mask(state_entity))
oval_sysent_set_mask(item_entity,1);
ent_val_res = _evaluate_sysent(syschar_model, item_entity, state_entity,
state_entity_operation, content);
if (((signed) ent_val_res) == -1) {
oval_sysent_iterator_free(item_entities_itr);
goto fail;
}
ores_add_res(&ent_ores, ent_val_res);
}
oval_sysent_iterator_free(item_entities_itr);
if (!found_matching_item)
dW("Entity name '%s' from state (id: '%s') not found in item (id: '%s').\n",
state_entity_name, oval_state_get_id(state), oval_sysitem_get_id(cur_sysitem));
ste_ent_res = ores_get_result_bychk(&ent_ores, entity_check);
ores_add_res(&ste_ores, ste_ent_res);
oval_result_t cres = oval_status_counter_get_result(&counter, check_existence);
ores_add_res(&ste_ores, cres);
}
oval_state_content_iterator_free(state_contents_itr);
operator = oval_state_get_operator(state);
result = ores_get_result_byopr(&ste_ores, operator);
return result;
fail:
oval_state_content_iterator_free(state_contents_itr);
return OVAL_RESULT_ERROR;
}
