47 struct transaction {  struct
68     struct transaction current_transactions[CURRENT_TRANSACTIONS_NUM];  argument
73     /* Transaction time checking */
152 static struct transaction *u2f_transaction_get(U2FPassthruState *key,  in u2f_transaction_get()
162 static struct transaction *u2f_transaction_get_from_nonce(U2FPassthruState *key,  in u2f_transaction_get_from_nonce()
190                sizeof(struct transaction));  in u2f_transaction_close()
208     struct transaction *transaction;  in u2f_transaction_add()  local
211         /* Close the oldest transaction */  in u2f_transaction_add()
213         transaction = &key->current_transactions[index];  in u2f_transaction_add()
214         u2f_transaction_close(key, transaction->cid);  in u2f_transaction_add()
222     /* Transaction */  in u2f_transaction_add()
223     transaction = &key->current_transactions[index];  in u2f_transaction_add()
224     transaction->cid = cid;  in u2f_transaction_add()
225     transaction->resp_bcnt = 0;  in u2f_transaction_add()
226     transaction->resp_size = 0;  in u2f_transaction_add()
230         memcpy(transaction->nonce, nonce, NONCE_SIZE);  in u2f_transaction_add()
241     /* Transaction */  in u2f_transaction_start()
261     struct transaction *transaction;  in u2f_passthru_recv_from_host()  local
264     /* Retrieve transaction */  in u2f_passthru_recv_from_host()
272         transaction = u2f_transaction_get_from_nonce(key, packet_init->data);  in u2f_passthru_recv_from_host()
274         transaction = u2f_transaction_get(key, cid);  in u2f_passthru_recv_from_host()
277     /* Ignore no started transaction */  in u2f_passthru_recv_from_host()
278     if (transaction == NULL) {  in u2f_passthru_recv_from_host()
284         transaction->resp_bcnt = packet_init_get_bcnt(packet_init);  in u2f_passthru_recv_from_host()
285         transaction->resp_size = PACKET_INIT_DATA_SIZE;  in u2f_passthru_recv_from_host()
289             if (memcmp(transaction->nonce, packet_init->data, NONCE_SIZE)  in u2f_passthru_recv_from_host()
295         transaction->resp_size += PACKET_CONT_DATA_SIZE;  in u2f_passthru_recv_from_host()
298     /* Transaction end check */  in u2f_passthru_recv_from_host()
299     if (transaction->resp_size >= transaction->resp_bcnt) {  in u2f_passthru_recv_from_host()