* @return 8 bytes of challenge data, determined by the server to be the challenge for NTLM authentication
*
*/
- const uint8_t *(*get_challenge)(const struct gensec_ntlmssp_state *);
+ NTSTATUS (*get_challenge)(const struct gensec_ntlmssp_state *,
+ uint8_t challenge[8]);
/**
* Callback to find if the challenge used by NTLM authentication may be modified