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Print discovery

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Add concept of "discovered prints" and flesh out the API. A discovered print
was found based on file name but has not been checked for file integrity,
and of course there is no guarantee that it is usable when you try to
use it later (might have been deleted, etc).

The .fprint directory structure was changed - instead of using mnemonics
like "rind" we use their numeric value in the fp_finger enum as the filename.
This commit is contained in:
Daniel Drake
2007-10-31 13:12:04 +00:00
parent b96aade69c
commit 447b1f01b3
4 changed files with 353 additions and 95 deletions
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32
libfprint/fprint.h
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@@ -20,8 +20,11 @@
#ifndef __FPRINT_H__
#define __FPRINT_H__
#include <stdint.h>
/* structs that applications are not allowed to peek into */
struct fp_dscv_dev;
struct fp_dscv_print;
struct fp_dev;
struct fp_driver;
struct fp_print_data;
@@ -41,17 +44,37 @@ enum fp_finger {
RIGHT_LITTLE,
};
/* Drivers */
const char *fp_driver_get_name(struct fp_driver *drv);
const char *fp_driver_get_full_name(struct fp_driver *drv);
uint16_t fp_driver_get_driver_id(struct fp_driver *drv);
/* Device discovery */
struct fp_dscv_dev **fp_discover_devs(void);
void fp_dscv_devs_free(struct fp_dscv_dev **devs);
struct fp_driver *fp_dscv_dev_get_driver(struct fp_dscv_dev *dev);
uint32_t fp_dscv_dev_get_devtype(struct fp_dscv_dev *dev);
int fp_dscv_dev_supports_print_data(struct fp_dscv_dev *dev,
struct fp_print_data *print);
int fp_dscv_dev_supports_dscv_print(struct fp_dscv_dev *dev,
struct fp_dscv_print *print);
struct fp_dscv_dev *fp_dscv_dev_for_print_data(struct fp_dscv_dev **devs,
struct fp_print_data *print);
struct fp_dscv_dev *fp_dscv_dev_for_dscv_print(struct fp_dscv_dev **devs,
struct fp_dscv_print *print);
static inline uint16_t fp_dscv_dev_get_driver_id(struct fp_dscv_dev *dev)
{
return fp_driver_get_driver_id(fp_dscv_dev_get_driver(dev));
}
/* Print discovery */
struct fp_dscv_print **fp_discover_prints(void);
void fp_dscv_prints_free(struct fp_dscv_print **prints);
uint16_t fp_dscv_print_get_driver_id(struct fp_dscv_print *print);
uint32_t fp_dscv_print_get_devtype(struct fp_dscv_print *print);
enum fp_finger fp_dscv_print_get_finger(struct fp_dscv_print *print);
/* Device handling */
struct fp_dev *fp_dev_open(struct fp_dscv_dev *ddev);
void fp_dev_close(struct fp_dev *dev);
@@ -59,11 +82,8 @@ struct fp_driver *fp_dev_get_driver(struct fp_dev *dev);
int fp_dev_get_nr_enroll_stages(struct fp_dev *dev);
struct fp_img_dev *fp_dev_to_img_dev(struct fp_dev *dev);
uint32_t fp_dev_get_devtype(struct fp_dev *dev);
/* Drivers */
const char *fp_driver_get_name(struct fp_driver *drv);
const char *fp_driver_get_full_name(struct fp_driver *drv);
uint16_t fp_driver_get_driver_id(struct fp_driver *drv);
int fp_dev_supports_print_data(struct fp_dev *dev, struct fp_print_data *data);
int fp_dev_supports_dscv_print(struct fp_dev *dev, struct fp_dscv_print *print);
/* Enrollment */
enum fp_enroll_result {
@@ -93,6 +113,8 @@ int fp_verify_finger(struct fp_dev *dev, struct fp_print_data *enrolled_print);
/* Data handling */
int fp_print_data_load(struct fp_dev *dev, enum fp_finger finger,
struct fp_print_data **data);
int fp_print_data_from_dscv_print(struct fp_dscv_print *print,
struct fp_print_data **data);
int fp_print_data_save(struct fp_print_data *data, enum fp_finger finger);
void fp_print_data_free(struct fp_print_data *data);
size_t fp_print_data_get_data(struct fp_print_data *data, unsigned char **ret);