Add current version of libSRTP from CVS.

libsrtp/crypto/include/kernel_compat.h

+/*
+ * kernel_compat.h
+ * 
+ * Compatibility stuff for building in kernel context where standard
+ * C headers and library are not available.
+ *
+ * Marcus Sundberg
+ * Ingate Systems AB
+ */
+/*
+ *      
+ * Copyright(c) 2005 Ingate Systems AB
+ * 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 author(s) 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.
+ *
+ */
+
+#ifndef KERNEL_COMPAT_H
+#define KERNEL_COMPAT_H
+
+#ifdef SRTP_KERNEL_LINUX
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/random.h>
+#include <linux/byteorder/generic.h>
+
+
+#define err_report(priority, ...) \
+  do {\
+    if (priority <= err_level) {\
+       printk(__VA_ARGS__);\
+    }\
+  }while(0)
+
+#define clock() (jiffies)
+#define time(x) (jiffies)
+
+/* rand() implementation. */
+#define RAND_MAX        32767
+
+static inline int rand(void)
+{
+        uint32_t temp;
+        get_random_bytes(&temp, sizeof(temp));
+        return temp % (RAND_MAX+1);
+}
+
+/* stdio/stdlib implementation. */
+#define printf(...)     printk(__VA_ARGS__)
+#define exit(n) panic("%s:%d: exit(%d)\n", __FILE__, __LINE__, (n))
+
+#endif /* SRTP_KERNEL_LINUX */
+
+#endif /* KERNEL_COMPAT_H */