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109 lines
3.8 KiB
C
109 lines
3.8 KiB
C
/*
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* Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the OpenSSL license (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_CRYPTO_UI_LOCAL_H
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# define OSSL_CRYPTO_UI_LOCAL_H
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# include <openssl/ui.h>
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# include <openssl/crypto.h>
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# ifdef _
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# undef _
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# endif
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struct ui_method_st {
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char *name;
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/*
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* All the functions return 1 or non-NULL for success and 0 or NULL for
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* failure
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*/
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/*
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* Open whatever channel for this, be it the console, an X window or
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* whatever. This function should use the ex_data structure to save
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* intermediate data.
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*/
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int (*ui_open_session) (UI *ui);
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int (*ui_write_string) (UI *ui, UI_STRING *uis);
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/*
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* Flush the output. If a GUI dialog box is used, this function can be
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* used to actually display it.
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*/
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int (*ui_flush) (UI *ui);
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int (*ui_read_string) (UI *ui, UI_STRING *uis);
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int (*ui_close_session) (UI *ui);
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/*
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* Duplicate the ui_data that often comes alongside a ui_method. This
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* allows some backends to save away UI information for later use.
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*/
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void *(*ui_duplicate_data) (UI *ui, void *ui_data);
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void (*ui_destroy_data) (UI *ui, void *ui_data);
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/*
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* Construct a prompt in a user-defined manner. object_desc is a textual
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* short description of the object, for example "pass phrase", and
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* object_name is the name of the object (might be a card name or a file
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* name. The returned string shall always be allocated on the heap with
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* OPENSSL_malloc(), and need to be free'd with OPENSSL_free().
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*/
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char *(*ui_construct_prompt) (UI *ui, const char *object_desc,
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const char *object_name);
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/*
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* UI_METHOD specific application data.
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*/
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CRYPTO_EX_DATA ex_data;
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};
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struct ui_string_st {
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enum UI_string_types type; /* Input */
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const char *out_string; /* Input */
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int input_flags; /* Flags from the user */
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/*
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* The following parameters are completely irrelevant for UIT_INFO, and
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* can therefore be set to 0 or NULL
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*/
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char *result_buf; /* Input and Output: If not NULL,
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* user-defined with size in result_maxsize.
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* Otherwise, it may be allocated by the UI
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* routine, meaning result_minsize is going
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* to be overwritten. */
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size_t result_len;
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union {
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struct {
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int result_minsize; /* Input: minimum required size of the
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* result. */
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int result_maxsize; /* Input: maximum permitted size of the
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* result */
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const char *test_buf; /* Input: test string to verify against */
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} string_data;
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struct {
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const char *action_desc; /* Input */
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const char *ok_chars; /* Input */
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const char *cancel_chars; /* Input */
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} boolean_data;
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} _;
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# define OUT_STRING_FREEABLE 0x01
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int flags; /* flags for internal use */
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};
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struct ui_st {
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const UI_METHOD *meth;
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STACK_OF(UI_STRING) *strings; /* We might want to prompt for more than
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* one thing at a time, and with different
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* echoing status. */
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void *user_data;
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CRYPTO_EX_DATA ex_data;
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# define UI_FLAG_REDOABLE 0x0001
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# define UI_FLAG_DUPL_DATA 0x0002 /* user_data was duplicated */
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# define UI_FLAG_PRINT_ERRORS 0x0100
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int flags;
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CRYPTO_RWLOCK *lock;
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};
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#endif
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