| Index: libsrtp/crypto/kernel/alloc.c
|
| ===================================================================
|
| --- libsrtp/crypto/kernel/alloc.c (revision 0)
|
| +++ libsrtp/crypto/kernel/alloc.c (revision 0)
|
| @@ -0,0 +1,119 @@
|
| +/*
|
| + * alloc.c
|
| + *
|
| + * memory allocation and deallocation
|
| + *
|
| + * David A. McGrew
|
| + * Cisco Systems, Inc.
|
| + */
|
| +/*
|
| + *
|
| + * Copyright (c) 2001-2006 Cisco Systems, Inc.
|
| + * All rights reserved.
|
| + *
|
| + * Redistribution and use in source and binary forms, with or without
|
| + * modification, are permitted provided that the following conditions
|
| + * are met:
|
| + *
|
| + * Redistributions of source code must retain the above copyright
|
| + * notice, this list of conditions and the following disclaimer.
|
| + *
|
| + * Redistributions in binary form must reproduce the above
|
| + * copyright notice, this list of conditions and the following
|
| + * disclaimer in the documentation and/or other materials provided
|
| + * with the distribution.
|
| + *
|
| + * Neither the name of the Cisco Systems, Inc. nor the names of its
|
| + * contributors may be used to endorse or promote products derived
|
| + * from this software without specific prior written permission.
|
| + *
|
| + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
| + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
| + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
| + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
| + * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
|
| + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
| + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
| + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
| + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
| + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
| + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
| + * OF THE POSSIBILITY OF SUCH DAMAGE.
|
| + *
|
| + */
|
| +
|
| +#include "alloc.h"
|
| +#include "crypto_kernel.h"
|
| +
|
| +/* the debug module for memory allocation */
|
| +
|
| +debug_module_t mod_alloc = {
|
| + 0, /* debugging is off by default */
|
| + "alloc" /* printable name for module */
|
| +};
|
| +
|
| +/*
|
| + * Nota bene: the debugging statements for crypto_alloc() and
|
| + * crypto_free() have identical prefixes, which include the addresses
|
| + * of the memory locations on which they are operating. This fact can
|
| + * be used to locate memory leaks, by turning on memory debugging,
|
| + * grepping for 'alloc', then matching alloc and free calls by
|
| + * address.
|
| + */
|
| +
|
| +#ifdef SRTP_KERNEL_LINUX
|
| +
|
| +#include <linux/interrupt.h>
|
| +
|
| +void *
|
| +crypto_alloc(size_t size) {
|
| + void *ptr;
|
| +
|
| + ptr = kmalloc(size, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
|
| +
|
| + if (ptr) {
|
| + debug_print(mod_alloc, "(location: %p) allocated", ptr);
|
| + } else
|
| + debug_print(mod_alloc, "allocation failed (asked for %d bytes)\n", size);
|
| +
|
| + return ptr;
|
| +}
|
| +
|
| +void
|
| +crypto_free(void *ptr) {
|
| +
|
| + debug_print(mod_alloc, "(location: %p) freed", ptr);
|
| +
|
| + kfree(ptr);
|
| +}
|
| +
|
| +
|
| +#elif defined(HAVE_STDLIB_H)
|
| +
|
| +void *
|
| +crypto_alloc(size_t size) {
|
| + void *ptr;
|
| +
|
| + ptr = malloc(size);
|
| +
|
| + if (ptr) {
|
| + debug_print(mod_alloc, "(location: %p) allocated", ptr);
|
| + } else
|
| + debug_print(mod_alloc, "allocation failed (asked for %d bytes)\n", size);
|
| +
|
| + return ptr;
|
| +}
|
| +
|
| +void
|
| +crypto_free(void *ptr) {
|
| +
|
| + debug_print(mod_alloc, "(location: %p) freed", ptr);
|
| +
|
| + free(ptr);
|
| +}
|
| +
|
| +#else /* we need to define our own memory allocation routines */
|
| +
|
| +#error no memory allocation defined yet
|
| +
|
| +#endif
|
|
|
| Property changes on: libsrtp/crypto/kernel/alloc.c
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
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|