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ykclient.h
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/* ykclient.h --- Prototypes for Yubikey OTP validation client library.
*
* Written by Simon Josefsson <simon@josefsson.org>.
* Copyright (c) 2006-2013 Yubico AB
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef YKCLIENT_H
#define YKCLIENT_H
#include <stdint.h>
#include <string.h>
#include <ykclient_errors.h>
#include <ykclient_version.h>
#include <ykclient_server_response.h>
#define DEFAULT_MAX_RETRIES 3
#ifdef __cplusplus
extern "C"
{
#endif
/* Must be called successfully before using any other functions. */
extern ykclient_rc ykclient_global_init (void);
extern void ykclient_global_done (void);
typedef struct ykclient_st ykclient_t;
typedef struct ykclient_handle_st ykclient_handle_t;
extern ykclient_rc ykclient_init (ykclient_t ** ykc);
extern void ykclient_done (ykclient_t ** ykc);
extern ykclient_rc ykclient_handle_init (ykclient_t * ykc,
ykclient_handle_t ** ykh);
extern void ykclient_handle_cleanup (ykclient_handle_t * ykh);
extern void ykclient_handle_done (ykclient_handle_t ** ykh);
/* If value is 0 the authenticity of the signature returned by the
server in response to the request won't be verified. */
extern void ykclient_set_verify_signature (ykclient_t * ykc, int value);
extern const char *ykclient_strerror (ykclient_rc ret);
extern void ykclient_set_client (ykclient_t * ykc,
unsigned int client_id,
size_t keylen, const char *key);
extern ykclient_rc ykclient_set_client_hex (ykclient_t * ykc,
unsigned int client_id,
const char *key);
extern ykclient_rc ykclient_set_client_b64 (ykclient_t * ykc,
unsigned int client_id,
const char *key);
extern ykclient_rc ykclient_set_url_template (ykclient_t * ykc,
const char *url_template);
extern ykclient_rc ykclient_set_url_templates (ykclient_t * ykc,
size_t num_templates,
const char **url_templates);
extern ykclient_rc ykclient_set_url_bases (ykclient_t * ykc,
size_t num_templates,
const char **url_templates);
extern void ykclient_set_ca_path (ykclient_t * ykc, const char *ca_path);
extern void ykclient_set_ca_info (ykclient_t * ykc, const char *ca_info);
extern void ykclient_set_proxy (ykclient_t * ykc, const char *proxy);
/*
* Set the nonce. A default nonce is generated in ykclient_init(), but
* if you either want to specify your own nonce, or want to remove the
* nonce (needed to send signed requests to v1 validation servers),
* you must call this function. Set nonce to NULL to disable it.
*/
extern void ykclient_set_nonce (ykclient_t * ykc, char *nonce);
extern void ykclient_set_max_retries (ykclient_t * ykc, int retries);
extern const char *ykclient_get_last_url (ykclient_t * ykc);
extern ykclient_rc ykclient_request_process (ykclient_t * ykc,
ykclient_handle_t * ykh,
const char *yubikey);
extern ykclient_rc ykclient_request (ykclient_t * ykc,
const char *yubikey_otp);
/* One call interface for validation protocol 1.x, with default URL. */
extern ykclient_rc ykclient_verify_otp (const char *yubikey_otp,
unsigned int client_id,
const char *hexkey);
/* One call interface for validation protocol 2.0 and/or non-default URL. */
extern ykclient_rc ykclient_verify_otp_v2 (ykclient_t * ykc_in,
const char *yubikey_otp,
unsigned int client_id,
const char *hexkey,
size_t urlcount,
const char **urls,
const char *api_key);
/* Fetch out the server response form the last query */
extern const ykclient_server_response_t *ykclient_get_server_response(ykclient_t *ykc);
#ifdef __cplusplus
}
#endif
#endif