struct algorithm_data_st {
OPENSSL_CTX *libctx;
int operation_id; /* May be zero for finding them all */
+ int (*pre)(OSSL_PROVIDER *, int operation_id, void *data, int *result);
void (*fn)(OSSL_PROVIDER *, const OSSL_ALGORITHM *, int no_store,
void *data);
+ int (*post)(OSSL_PROVIDER *, int operation_id, int no_store, void *data,
+ int *result);
void *data;
};
for (cur_operation = first_operation;
cur_operation <= last_operation;
cur_operation++) {
- const OSSL_ALGORITHM *map =
- ossl_provider_query_operation(provider, data->operation_id,
- &no_store);
+ const OSSL_ALGORITHM *map = NULL;
+ int ret;
+ /* Do we fulfill pre-conditions? */
+ if (data->pre == NULL) {
+ /* If there is no pre-condition function, assume "yes" */
+ ret = 1;
+ } else {
+ if (!data->pre(provider, cur_operation, data->data, &ret))
+ /* Error, bail out! */
+ return 0;
+ }
+
+ /* If pre-condition not fulfilled, go to the next operation */
+ if (!ret)
+ continue;
+
+ map = ossl_provider_query_operation(provider, cur_operation,
+ &no_store);
if (map == NULL)
- break;
+ continue;
- ok = 1; /* As long as we've found *something* */
- while (map->algorithm_name != NULL) {
+ while (map->algorithm_names != NULL) {
const OSSL_ALGORITHM *thismap = map++;
data->fn(provider, thismap, no_store, data->data);
}
+
+ /* Do we fulfill post-conditions? */
+ if (data->post == NULL) {
+ /* If there is no post-condition function, assume "yes" */
+ ret = 1;
+ } else {
+ if (!data->post(provider, cur_operation, no_store, data->data,
+ &ret))
+ /* Error, bail out! */
+ return 0;
+ }
+
+ /* If post-condition fulfilled, set general success */
+ if (ret)
+ ok = 1;
}
return ok;
void ossl_algorithm_do_all(OPENSSL_CTX *libctx, int operation_id,
OSSL_PROVIDER *provider,
+ int (*pre)(OSSL_PROVIDER *, int operation_id,
+ void *data, int *result),
void (*fn)(OSSL_PROVIDER *provider,
const OSSL_ALGORITHM *algo,
int no_store, void *data),
+ int (*post)(OSSL_PROVIDER *, int operation_id,
+ int no_store, void *data, int *result),
void *data)
{
- struct algorithm_data_st cbdata;
+ struct algorithm_data_st cbdata = { 0, };
cbdata.libctx = libctx;
cbdata.operation_id = operation_id;
+ cbdata.pre = pre;
cbdata.fn = fn;
+ cbdata.post = post;
cbdata.data = data;
if (provider == NULL)