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 |