mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-27 15:12:21 +00:00
268 lines
8.9 KiB
C
268 lines
8.9 KiB
C
/* SPDX-License-Identifier: MIT */
|
|
/*
|
|
* Copyright (C) 2016 The Android Open Source Project
|
|
*/
|
|
|
|
#if !defined(AVB_INSIDE_LIBAVB_H) && !defined(AVB_COMPILATION)
|
|
#error "Never include this file directly, include libavb.h instead."
|
|
#endif
|
|
|
|
#ifndef AVB_UTIL_H_
|
|
#define AVB_UTIL_H_
|
|
|
|
#include "avb_sysdeps.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#define AVB_STRINGIFY(x) #x
|
|
#define AVB_TO_STRING(x) AVB_STRINGIFY(x)
|
|
|
|
#ifdef AVB_ENABLE_DEBUG
|
|
/* Aborts the program if |expr| is false.
|
|
*
|
|
* This has no effect unless AVB_ENABLE_DEBUG is defined.
|
|
*/
|
|
#define avb_assert(expr) \
|
|
do { \
|
|
if (!(expr)) { \
|
|
avb_fatal("assert fail: " #expr "\n"); \
|
|
} \
|
|
} while (0)
|
|
#else
|
|
#define avb_assert(expr)
|
|
#endif
|
|
|
|
/* Aborts the program if reached.
|
|
*
|
|
* This has no effect unless AVB_ENABLE_DEBUG is defined.
|
|
*/
|
|
#ifdef AVB_ENABLE_DEBUG
|
|
#define avb_assert_not_reached() \
|
|
do { \
|
|
avb_fatal("assert_not_reached()\n"); \
|
|
} while (0)
|
|
#else
|
|
#define avb_assert_not_reached()
|
|
#endif
|
|
|
|
/* Aborts the program if |addr| is not word-aligned.
|
|
*
|
|
* This has no effect unless AVB_ENABLE_DEBUG is defined.
|
|
*/
|
|
#define avb_assert_aligned(addr) \
|
|
avb_assert((((uintptr_t)addr) & (AVB_ALIGNMENT_SIZE - 1)) == 0)
|
|
|
|
#ifdef AVB_ENABLE_DEBUG
|
|
/* Print functions, used for diagnostics.
|
|
*
|
|
* These have no effect unless AVB_ENABLE_DEBUG is defined.
|
|
*/
|
|
#define avb_debug(message) \
|
|
do { \
|
|
avb_printv(avb_basename(__FILE__), \
|
|
":", \
|
|
AVB_TO_STRING(__LINE__), \
|
|
": DEBUG: ", \
|
|
message, \
|
|
NULL); \
|
|
} while (0)
|
|
#define avb_debugv(message, ...) \
|
|
do { \
|
|
avb_printv(avb_basename(__FILE__), \
|
|
":", \
|
|
AVB_TO_STRING(__LINE__), \
|
|
": DEBUG: ", \
|
|
message, \
|
|
##__VA_ARGS__); \
|
|
} while (0)
|
|
#else
|
|
#define avb_debug(message)
|
|
#define avb_debugv(message, ...)
|
|
#endif
|
|
|
|
/* Prints out a message. This is typically used if a runtime-error
|
|
* occurs.
|
|
*/
|
|
#define avb_error(message) \
|
|
do { \
|
|
avb_printv(avb_basename(__FILE__), \
|
|
":", \
|
|
AVB_TO_STRING(__LINE__), \
|
|
": ERROR: ", \
|
|
message, \
|
|
NULL); \
|
|
} while (0)
|
|
#define avb_errorv(message, ...) \
|
|
do { \
|
|
avb_printv(avb_basename(__FILE__), \
|
|
":", \
|
|
AVB_TO_STRING(__LINE__), \
|
|
": ERROR: ", \
|
|
message, \
|
|
##__VA_ARGS__); \
|
|
} while (0)
|
|
|
|
/* Prints out a message and calls avb_abort().
|
|
*/
|
|
#define avb_fatal(message) \
|
|
do { \
|
|
avb_printv(avb_basename(__FILE__), \
|
|
":", \
|
|
AVB_TO_STRING(__LINE__), \
|
|
": FATAL: ", \
|
|
message, \
|
|
NULL); \
|
|
avb_abort(); \
|
|
} while (0)
|
|
#define avb_fatalv(message, ...) \
|
|
do { \
|
|
avb_printv(avb_basename(__FILE__), \
|
|
":", \
|
|
AVB_TO_STRING(__LINE__), \
|
|
": FATAL: ", \
|
|
message, \
|
|
##__VA_ARGS__); \
|
|
avb_abort(); \
|
|
} while (0)
|
|
|
|
/* Converts a 32-bit unsigned integer from big-endian to host byte order. */
|
|
uint32_t avb_be32toh(uint32_t in) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Converts a 64-bit unsigned integer from big-endian to host byte order. */
|
|
uint64_t avb_be64toh(uint64_t in) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Converts a 32-bit unsigned integer from host to big-endian byte order. */
|
|
uint32_t avb_htobe32(uint32_t in) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Converts a 64-bit unsigned integer from host to big-endian byte order. */
|
|
uint64_t avb_htobe64(uint64_t in) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Compare |n| bytes starting at |s1| with |s2| and return 0 if they
|
|
* match, 1 if they don't. Returns 0 if |n|==0, since no bytes
|
|
* mismatched.
|
|
*
|
|
* Time taken to perform the comparison is only dependent on |n| and
|
|
* not on the relationship of the match between |s1| and |s2|.
|
|
*
|
|
* Note that unlike avb_memcmp(), this only indicates inequality, not
|
|
* whether |s1| is less than or greater than |s2|.
|
|
*/
|
|
int avb_safe_memcmp(const void* s1,
|
|
const void* s2,
|
|
size_t n) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Adds |value_to_add| to |value| with overflow protection.
|
|
*
|
|
* Returns false if the addition overflows, true otherwise. In either
|
|
* case, |value| is always modified.
|
|
*/
|
|
bool avb_safe_add_to(uint64_t* value,
|
|
uint64_t value_to_add) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Adds |a| and |b| with overflow protection, returning the value in
|
|
* |out_result|.
|
|
*
|
|
* It's permissible to pass NULL for |out_result| if you just want to
|
|
* check that the addition would not overflow.
|
|
*
|
|
* Returns false if the addition overflows, true otherwise.
|
|
*/
|
|
bool avb_safe_add(uint64_t* out_result,
|
|
uint64_t a,
|
|
uint64_t b) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Checks if |num_bytes| data at |data| is a valid UTF-8
|
|
* string. Returns true if valid UTF-8, false otherwise.
|
|
*/
|
|
bool avb_validate_utf8(const uint8_t* data,
|
|
size_t num_bytes) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Concatenates |str1| (of |str1_len| bytes) and |str2| (of |str2_len|
|
|
* bytes) and puts the result in |buf| which holds |buf_size|
|
|
* bytes. The result is also guaranteed to be NUL terminated. Fail if
|
|
* there is not enough room in |buf| for the resulting string plus
|
|
* terminating NUL byte.
|
|
*
|
|
* Returns true if the operation succeeds, false otherwise.
|
|
*/
|
|
bool avb_str_concat(char* buf,
|
|
size_t buf_size,
|
|
const char* str1,
|
|
size_t str1_len,
|
|
const char* str2,
|
|
size_t str2_len);
|
|
|
|
/* Like avb_malloc_() but prints a error using avb_error() if memory
|
|
* allocation fails.
|
|
*/
|
|
void* avb_malloc(size_t size) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Like avb_malloc() but sets the memory with zeroes. */
|
|
void* avb_calloc(size_t size) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Duplicates a NUL-terminated string. Returns NULL on OOM. */
|
|
char* avb_strdup(const char* str) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Duplicates a NULL-terminated array of NUL-terminated strings by
|
|
* concatenating them. The returned string will be
|
|
* NUL-terminated. Returns NULL on OOM.
|
|
*/
|
|
char* avb_strdupv(const char* str,
|
|
...) AVB_ATTR_WARN_UNUSED_RESULT AVB_ATTR_SENTINEL;
|
|
|
|
/* Finds the first occurrence of |needle| in the string |haystack|
|
|
* where both strings are NUL-terminated strings. The terminating NUL
|
|
* bytes are not compared.
|
|
*
|
|
* Returns NULL if not found, otherwise points into |haystack| for the
|
|
* first occurrence of |needle|.
|
|
*/
|
|
const char* avb_strstr(const char* haystack,
|
|
const char* needle) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Finds the first occurrence of |str| in the NULL-terminated string
|
|
* array |strings|. Each element in |strings| must be
|
|
* NUL-terminated. The string given by |str| need not be
|
|
* NUL-terminated but its size must be given in |str_size|.
|
|
*
|
|
* Returns NULL if not found, otherwise points into |strings| for the
|
|
* first occurrence of |str|.
|
|
*/
|
|
const char* avb_strv_find_str(const char* const* strings,
|
|
const char* str,
|
|
size_t str_size);
|
|
|
|
/* Replaces all occurrences of |search| with |replace| in |str|.
|
|
*
|
|
* Returns a newly allocated string or NULL if out of memory.
|
|
*/
|
|
char* avb_replace(const char* str,
|
|
const char* search,
|
|
const char* replace) AVB_ATTR_WARN_UNUSED_RESULT;
|
|
|
|
/* Calculates the CRC-32 for data in |buf| of size |buf_size|. */
|
|
uint32_t avb_crc32(const uint8_t* buf, size_t buf_size);
|
|
|
|
/* Returns the basename of |str|. This is defined as the last path
|
|
* component, assuming the normal POSIX separator '/'. If there are no
|
|
* separators, returns |str|.
|
|
*/
|
|
const char* avb_basename(const char* str);
|
|
|
|
/* Converts any ascii lowercase characters in |str| to uppercase in-place.
|
|
* |str| must be NUL-terminated and valid UTF-8.
|
|
*/
|
|
void avb_uppercase(char* str);
|
|
|
|
/* Converts |data_len| bytes of |data| to hex and returns the result. Returns
|
|
* NULL on OOM. Caller must free the returned string with avb_free.
|
|
*/
|
|
char* avb_bin2hex(const uint8_t* data, size_t data_len);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* AVB_UTIL_H_ */
|