/**
* Parse OCSP response status
*
* @v ocsp OCSP check
* @v raw ASN.1 cursor
* @ret rc Return status code
*/
static int ocsp_parse_response_status ( struct ocsp_check *ocsp,
const struct asn1_cursor *raw ) {
struct asn1_cursor cursor;
uint8_t status;
int rc;
/* Enter responseStatus */
memcpy ( &cursor, raw, sizeof ( cursor ) );
if ( ( rc = asn1_enter ( &cursor, ASN1_ENUMERATED ) ) != 0 ) {
DBGC ( ocsp, "OCSP %p \"%s\" could not locate responseStatus: "
"%s\n", ocsp, x509_name ( ocsp->cert ), strerror ( rc ));
return rc;
}
/* Extract response status */
if ( cursor.len != sizeof ( status ) ) {
DBGC ( ocsp, "OCSP %p \"%s\" invalid status:\n",
ocsp, x509_name ( ocsp->cert ) );
DBGC_HDA ( ocsp, 0, cursor.data, cursor.len );
return -EINVAL;
}
memcpy ( &status, cursor.data, sizeof ( status ) );
/* Check response status */
if ( status != OCSP_STATUS_SUCCESSFUL ) {
DBGC ( ocsp, "OCSP %p \"%s\" response status %d\n",
ocsp, x509_name ( ocsp->cert ), status );
return EPROTO_STATUS ( status );
}
return 0;
}
/**
* Get DHCPv6 status code
*
* @v options DHCPv6 option list
* @ret rc Return status code
*/
static int dhcpv6_status_code ( struct dhcpv6_option_list *options ) {
const union dhcpv6_any_option *option;
const struct dhcpv6_status_code_option *status_code;
unsigned int status;
/* Find status code option, if present */
option = dhcpv6_option ( options, DHCPV6_STATUS_CODE );
if ( ! option ) {
/* Omitted status code should be treated as "success" */
return 0;
}
status_code = &option->status_code;
/* Sanity check */
if ( ntohs ( status_code->header.len ) <
( sizeof ( *status_code ) - sizeof ( status_code->header ) ) ) {
return -EINVAL;
}
/* Calculate iPXE error code from DHCPv6 status code */
status = ntohs ( status_code->status );
return ( status ? -EPROTO_STATUS ( status ) : 0 );
}
