mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-02 13:03:28 +01:00
123 lines
4.2 KiB
C
123 lines
4.2 KiB
C
/*
|
|
* Copyright 2020-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
* this file except in compliance with the License. You can obtain a copy
|
|
* in the file LICENSE in the source distribution or at
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
#ifndef OSSL_INTERNAL_PASSPHRASE_H
|
|
# define OSSL_INTERNAL_PASSPHRASE_H
|
|
# pragma once
|
|
|
|
/*
|
|
* This is a passphrase reader bridge with bells and whistles.
|
|
*
|
|
* On one hand, an API may wish to offer all sorts of passphrase callback
|
|
* possibilities to users, or may have to do so for historical reasons.
|
|
* On the other hand, that same API may have demands from other interfaces,
|
|
* notably from the libcrypto <-> provider interface, which uses
|
|
* OSSL_PASSPHRASE_CALLBACK consistently.
|
|
*
|
|
* The structure and functions below are the fundaments for bridging one
|
|
* passphrase callback form to another.
|
|
*
|
|
* In addition, extra features are included (this may be a growing list):
|
|
*
|
|
* - password caching. This is to be used by APIs where it's likely
|
|
* that the same passphrase may be asked for more than once, but the
|
|
* user shouldn't get prompted more than once. For example, this is
|
|
* useful for OSSL_DECODER, which may have to use a passphrase while
|
|
* trying to find out what input it has.
|
|
*/
|
|
|
|
/*
|
|
* Structure to hold whatever the calling user may specify. This structure
|
|
* is intended to be integrated into API specific structures or to be used
|
|
* as a local on-stack variable type. Therefore, no functions to allocate
|
|
* or freed it on the heap is offered.
|
|
*/
|
|
struct ossl_passphrase_data_st {
|
|
enum {
|
|
is_expl_passphrase = 1, /* Explicit passphrase given by user */
|
|
is_pem_password, /* pem_password_cb given by user */
|
|
is_ossl_passphrase, /* OSSL_PASSPHRASE_CALLBACK given by user */
|
|
is_ui_method /* UI_METHOD given by user */
|
|
} type;
|
|
union {
|
|
struct {
|
|
char *passphrase_copy;
|
|
size_t passphrase_len;
|
|
} expl_passphrase;
|
|
|
|
struct {
|
|
pem_password_cb *password_cb;
|
|
void *password_cbarg;
|
|
} pem_password;
|
|
|
|
struct {
|
|
OSSL_PASSPHRASE_CALLBACK *passphrase_cb;
|
|
void *passphrase_cbarg;
|
|
} ossl_passphrase;
|
|
|
|
struct {
|
|
const UI_METHOD *ui_method;
|
|
void *ui_method_data;
|
|
} ui_method;
|
|
} _;
|
|
|
|
/*-
|
|
* Flags section
|
|
*/
|
|
|
|
/* Set to indicate that caching should be done */
|
|
unsigned int flag_cache_passphrase:1;
|
|
|
|
/*-
|
|
* Misc section: caches and other
|
|
*/
|
|
|
|
char *cached_passphrase;
|
|
size_t cached_passphrase_len;
|
|
};
|
|
|
|
/* Structure manipulation */
|
|
|
|
void ossl_pw_clear_passphrase_data(struct ossl_passphrase_data_st *data);
|
|
void ossl_pw_clear_passphrase_cache(struct ossl_passphrase_data_st *data);
|
|
|
|
int ossl_pw_set_passphrase(struct ossl_passphrase_data_st *data,
|
|
const unsigned char *passphrase,
|
|
size_t passphrase_len);
|
|
int ossl_pw_set_pem_password_cb(struct ossl_passphrase_data_st *data,
|
|
pem_password_cb *cb, void *cbarg);
|
|
int ossl_pw_set_ossl_passphrase_cb(struct ossl_passphrase_data_st *data,
|
|
OSSL_PASSPHRASE_CALLBACK *cb, void *cbarg);
|
|
int ossl_pw_set_ui_method(struct ossl_passphrase_data_st *data,
|
|
const UI_METHOD *ui_method, void *ui_data);
|
|
|
|
int ossl_pw_enable_passphrase_caching(struct ossl_passphrase_data_st *data);
|
|
int ossl_pw_disable_passphrase_caching(struct ossl_passphrase_data_st *data);
|
|
|
|
/* Central function for direct calls */
|
|
|
|
int ossl_pw_get_passphrase(char *pass, size_t pass_size, size_t *pass_len,
|
|
const OSSL_PARAM params[], int verify,
|
|
struct ossl_passphrase_data_st *data);
|
|
|
|
/* Callback functions */
|
|
|
|
/*
|
|
* All of these callback expect that the callback argument is a
|
|
* struct ossl_passphrase_data_st
|
|
*/
|
|
|
|
pem_password_cb ossl_pw_pem_password;
|
|
pem_password_cb ossl_pw_pvk_password;
|
|
/* One callback for encoding (verification prompt) and one for decoding */
|
|
OSSL_PASSPHRASE_CALLBACK ossl_pw_passphrase_callback_enc;
|
|
OSSL_PASSPHRASE_CALLBACK ossl_pw_passphrase_callback_dec;
|
|
|
|
#endif
|