102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/* string_s.h - prototypes of enhanced security functions */
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/*
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* Copyright (c) 2013-2014, Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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DESCRIPTION
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The library contains the implementation of the enhanced security functions
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required by Security Development Lifecycle
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*/
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#ifndef _STRING_S_H
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#define _STRING_S_H
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#include <cputype.h>
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#include <string.h>
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#include <toolchain.h>
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#include <sections.h>
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typedef int errno_t; /* the error type that secure functions return */
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#if defined(CONFIG_ENHANCED_SECURITY)
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typedef errno_t res_s_t;
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#else
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/* if no enhanced security or compiling for user-space, functions
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* return nothing */
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typedef void res_s_t;
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#endif
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errno_t __k_memcpy_s(void *dest,
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size_t numberOfElements,
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const void *src,
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size_t count);
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size_t __strlen_s(const char *str, size_t numberOfElements);
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errno_t __strcpy_s(char *dest, size_t numberOfElements, const char *src);
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static inline res_s_t k_memcpy_s(void *dest,
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size_t numberOfElements,
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const void *src,
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size_t count)
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{
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#if defined(CONFIG_ENHANCED_SECURITY)
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return __k_memcpy_s(dest, numberOfElements, src, count);
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#else /* !CONFIG_ENHANCED_SECURITY */
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ARG_UNUSED(numberOfElements);
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k_memcpy(dest, src, count);
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#endif /* CONFIG_ENHANCED_SECURITY */
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}
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static inline size_t strlen_s(const char *str, size_t numberOfElements)
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{
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#if defined(CONFIG_ENHANCED_SECURITY)
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return __strlen_s(str, numberOfElements);
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#else /* !CONFIG_ENHANCED_SECURITY */
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ARG_UNUSED(numberOfElements);
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return strlen(str);
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#endif /* CONFIG_ENHANCED_SECURITY */
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}
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static inline res_s_t strcpy_s(char *dest,
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size_t numberOfElements,
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const char *src)
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{
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#if defined(CONFIG_ENHANCED_SECURITY)
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return __strcpy_s(dest, numberOfElements, src);
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#else /* !CONFIG_ENHANCED_SECURITY */
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ARG_UNUSED(numberOfElements);
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strcpy(dest, src);
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#endif /* CONFIG_ENHANCED_SECURITY */
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}
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#endif /* _STRING_S_H */
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