/* read/write callback that sends the requests and reads the ocsp response */
void
ocsp_callback(int fd, short event, void *arg)
{
struct iked_ocsp *ocsp = arg;
struct iked_socket *sock = ocsp->ocsp_sock;
OCSP_RESPONSE *resp = NULL;
/*
* Only call OCSP_sendreq_nbio() if should_read/write is
* either not requested or read/write can be called.
*/
if ((!BIO_should_read(ocsp->ocsp_cbio) || (event & EV_READ)) &&
(!BIO_should_write(ocsp->ocsp_cbio) || (event & EV_WRITE)) &&
OCSP_sendreq_nbio(&resp, ocsp->ocsp_req_ctx) != -1 ) {
ocsp_parse_response(ocsp, resp);
return;
}
if (BIO_should_read(ocsp->ocsp_cbio))
event_set(&sock->sock_ev, sock->sock_fd, EV_READ,
ocsp_callback, ocsp);
else if (BIO_should_write(ocsp->ocsp_cbio))
event_set(&sock->sock_ev, sock->sock_fd, EV_WRITE,
ocsp_callback, ocsp);
event_add(&sock->sock_ev, NULL);
}
/**
* Receive OCSP response
*
* @v ocsp OCSP check
* @v data Response data
* @v len Length of response data
* @ret rc Return status code
*/
int ocsp_response ( struct ocsp_check *ocsp, const void *data, size_t len ) {
struct ocsp_response *response = &ocsp->response;
struct asn1_cursor cursor;
int rc;
/* Duplicate data */
x509_put ( response->signer );
response->signer = NULL;
free ( response->data );
response->data = malloc ( len );
if ( ! response->data )
return -ENOMEM;
memcpy ( response->data, data, len );
cursor.data = response->data;
cursor.len = len;
/* Parse response */
if ( ( rc = ocsp_parse_response ( ocsp, &cursor ) ) != 0 )
return rc;
return 0;
}
