fido_bio_enroll_last_status

FIDO_BIO_ENROLL_NEW(3) Library Functions Manual FIDO_BIO_ENROLL_NEW(3)

fido_bio_enroll_new, fido_bio_enroll_free, fido_bio_enroll_last_status, fido_bio_enroll_remaining_samples
FIDO 2 biometric enrollment API

#include <fido.h>
#include <fido/bio.h>
#define FIDO_BIO_ENROLL_FP_GOOD				0x00 
#define FIDO_BIO_ENROLL_FP_TOO_HIGH			0x01 
#define FIDO_BIO_ENROLL_FP_TOO_LOW			0x02 
#define FIDO_BIO_ENROLL_FP_TOO_LEFT			0x03 
#define FIDO_BIO_ENROLL_FP_TOO_RIGHT			0x04 
#define FIDO_BIO_ENROLL_FP_TOO_FAST			0x05 
#define FIDO_BIO_ENROLL_FP_TOO_SLOW			0x06 
#define FIDO_BIO_ENROLL_FP_POOR_QUALITY			0x07 
#define FIDO_BIO_ENROLL_FP_TOO_SKEWED			0x08 
#define FIDO_BIO_ENROLL_FP_TOO_SHORT			0x09 
#define FIDO_BIO_ENROLL_FP_MERGE_FAILURE		0x0a 
#define FIDO_BIO_ENROLL_FP_EXISTS			0x0b 
#define FIDO_BIO_ENROLL_FP_DATABASE_FULL		0x0c 
#define FIDO_BIO_ENROLL_NO_USER_ACTIVITY		0x0d 
#define FIDO_BIO_ENROLL_NO_USER_PRESENCE_TRANSITION	0x0e

fido_bio_enroll_t *
fido_bio_enroll_new(void);
void
fido_bio_enroll_free(fido_bio_enroll_t **enroll_p);
uint8_t
fido_bio_enroll_last_status(const fido_bio_enroll_t *enroll);
uint8_t
fido_bio_enroll_remaining_samples(const fido_bio_enroll_t *enroll);

Ongoing FIDO 2 biometric enrollments are abstracted in libfido2 by the fido_bio_enroll_t type.
The functions described in this page allow a fido_bio_enroll_t type to be allocated, deallocated, and inspected. For device operations on fido_bio_enroll_t, please refer to fido_bio_dev_get_info(3).
The fido_bio_enroll_new() function returns a pointer to a newly allocated, empty fido_bio_enroll_t type. If memory cannot be allocated, NULL is returned.
The fido_bio_enroll_free() function releases the memory backing *enroll_p, where *enroll_p must have been previously allocated by fido_bio_enroll_new(). On return, *enroll_p is set to NULL. Either enroll_p or *enroll_p may be NULL, in which case fido_bio_enroll_free() is a NOP.
The fido_bio_enroll_last_status() function returns the enrollment status of enroll.
The fido_bio_enroll_remaining_samples() function returns the number of samples left for enroll to complete.

fido_bio_dev_get_info(3), fido_bio_template(3)
September 13, 2019 Linux 5.3.12-arch1-1