mbed TLS v1.3.19
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Buffer-based memory allocator. More...
Go to the source code of this file.
Macros | |
#define | MEMORY_VERIFY_NONE 0 |
#define | MEMORY_VERIFY_ALLOC (1 << 0) |
#define | MEMORY_VERIFY_FREE (1 << 1) |
#define | MEMORY_VERIFY_ALWAYS (MEMORY_VERIFY_ALLOC | MEMORY_VERIFY_FREE) |
SECTION: Module settings | |
The configuration options you can set for this module are in this section. Either change them in config.h or define them on the compiler command line. | |
#define | POLARSSL_MEMORY_ALIGN_MULTIPLE 4 |
Align on multiples of this value. More... | |
Functions | |
int | memory_buffer_alloc_init (unsigned char *buf, size_t len) |
Initialize use of stack-based memory allocator. More... | |
void | memory_buffer_alloc_free (void) |
Free the mutex for thread-safety and clear remaining memory. More... | |
void | memory_buffer_set_verify (int verify) |
Determine when the allocator should automatically verify the state of the entire chain of headers / meta-data. More... | |
int | memory_buffer_alloc_verify (void) |
Verifies that all headers in the memory buffer are correct and contain sane values. More... | |
int | memory_buffer_alloc_self_test (int verbose) |
Checkup routine. More... | |
Buffer-based memory allocator.
Copyright (C) 2006-2014, ARM Limited, All Rights Reserved
This file is part of mbed TLS (https://tls.mbed.org)
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Definition in file memory_buffer_alloc.h.
#define MEMORY_VERIFY_ALLOC (1 << 0) |
Definition at line 50 of file memory_buffer_alloc.h.
#define MEMORY_VERIFY_ALWAYS (MEMORY_VERIFY_ALLOC | MEMORY_VERIFY_FREE) |
Definition at line 52 of file memory_buffer_alloc.h.
#define MEMORY_VERIFY_FREE (1 << 1) |
Definition at line 51 of file memory_buffer_alloc.h.
#define MEMORY_VERIFY_NONE 0 |
Definition at line 49 of file memory_buffer_alloc.h.
#define POLARSSL_MEMORY_ALIGN_MULTIPLE 4 |
Align on multiples of this value.
Definition at line 44 of file memory_buffer_alloc.h.
void memory_buffer_alloc_free | ( | void | ) |
Free the mutex for thread-safety and clear remaining memory.
int memory_buffer_alloc_init | ( | unsigned char * | buf, |
size_t | len | ||
) |
Initialize use of stack-based memory allocator.
The stack-based allocator does memory management inside the presented buffer and does not call malloc() and free(). It sets the global polarssl_malloc() and polarssl_free() pointers to its own functions. (Provided polarssl_malloc() and polarssl_free() are thread-safe if POLARSSL_THREADING_C is defined)
buf | buffer to use as heap |
len | size of the buffer |
int memory_buffer_alloc_self_test | ( | int | verbose | ) |
Checkup routine.
int memory_buffer_alloc_verify | ( | void | ) |
Verifies that all headers in the memory buffer are correct and contain sane values.
Helps debug buffer-overflow errors.
Prints out first failure if POLARSSL_MEMORY_DEBUG is defined. Prints out full header information if POLARSSL_MEMORY_DEBUG_HEADERS is defined. (Includes stack trace information for each block if POLARSSL_MEMORY_BACKTRACE is defined as well).
void memory_buffer_set_verify | ( | int | verify | ) |
Determine when the allocator should automatically verify the state of the entire chain of headers / meta-data.
(Default: MEMORY_VERIFY_NONE)
verify | One of MEMORY_VERIFY_NONE, MEMORY_VERIFY_ALLOC, MEMORY_VERIFY_FREE or MEMORY_VERIFY_ALWAYS |