static int dnie_read_certificate(sc_card_t * card, char *certpath, X509 ** cert)
{
sc_file_t *file = NULL;
sc_path_t *path = NULL;
u8 *buffer = NULL;
char *msg = NULL;
size_t bufferlen = 0;
int res = SC_SUCCESS;
LOG_FUNC_CALLED(card->ctx);
path = (sc_path_t *) calloc(1, sizeof(sc_path_t));
if (!path) {
msg = "Cannot allocate path data for cert read";
res = SC_ERROR_OUT_OF_MEMORY;
goto read_cert_end;
}
sc_format_path(certpath, path);
res = dnie_read_file(card, path, &file, &buffer, &bufferlen);
if (res != SC_SUCCESS) {
msg = "Cannot get intermediate CA cert";
goto read_cert_end;
}
*cert = d2i_X509(NULL, (const unsigned char **)&buffer, bufferlen);
if (*cert == NULL) { /* received data is not a certificate */
res = SC_ERROR_OBJECT_NOT_VALID;
msg = "Readed data is not a certificate";
goto read_cert_end;
}
res = SC_SUCCESS;
read_cert_end:
if (file) {
sc_file_free(file);
file = NULL;
buffer = NULL;
bufferlen = 0;
}
if (msg)
sc_log(card->ctx, msg);
LOG_FUNC_RETURN(card->ctx, res);
}
/**
* Read SM required certificates from card.
*
* This function uses received path to read a certificate file from
* card.
* No validation is done except that received data is effectively a certificate
* @param card Pointer to card driver structure
* @param certpat path to requested certificate
* @param cert where to store resultig data
* @return SC_SUCCESS if ok, else error code
*/
static int dnie_read_certificate(sc_card_t * card, char *certpath, X509 ** cert)
{
sc_file_t *file = NULL;
sc_path_t path;
u8 *buffer = NULL, *buffer2 = NULL;
char *msg = NULL;
size_t bufferlen = 0;
int res = SC_SUCCESS;
LOG_FUNC_CALLED(card->ctx);
sc_format_path(certpath, &path);
res = dnie_read_file(card, &path, &file, &buffer, &bufferlen);
if (res != SC_SUCCESS) {
msg = "Cannot get intermediate CA cert";
goto read_cert_end;
}
buffer2 = buffer;
*cert = d2i_X509(NULL, (const unsigned char **)&buffer2, bufferlen);
if (*cert == NULL) { /* received data is not a certificate */
res = SC_ERROR_OBJECT_NOT_VALID;
msg = "Read data is not a certificate";
goto read_cert_end;
}
res = SC_SUCCESS;
read_cert_end:
if (buffer) {
free(buffer);
buffer = NULL;
bufferlen = 0;
}
if (file) {
sc_file_free(file);
file = NULL;
}
if (msg)
sc_log(card->ctx, msg);
LOG_FUNC_RETURN(card->ctx, res);
}
