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diff --git a/src/libs/3rdparty/botan/src/lib/utils/os_utils.h b/src/libs/3rdparty/botan/src/lib/utils/os_utils.h
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index 0000000000..5210b2523b
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+++ b/src/libs/3rdparty/botan/src/lib/utils/os_utils.h
@@ -0,0 +1,118 @@
+/*
+* OS specific utility functions
+* (C) 2015,2016,2017 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#ifndef BOTAN_OS_UTILS_H_
+#define BOTAN_OS_UTILS_H_
+
+#include <botan/types.h>
+#include <functional>
+
+namespace Botan {
+
+namespace OS {
+
+/*
+* This header is internal (not installed) and these functions are not
+* intended to be called by applications. However they are given public
+* visibility (using BOTAN_TEST_API macro) for the tests. This also probably
+* allows them to be overridden by the application on ELF systems, but
+* this hasn't been tested.
+*/
+
+/**
+* @return process ID assigned by the operating system.
+* On Unix and Windows systems, this always returns a result
+* On IncludeOS it returns 0 since there is no process ID to speak of
+* in a unikernel.
+*/
+uint32_t BOTAN_TEST_API get_process_id();
+
+/**
+* @return CPU processor clock, if available
+*
+* On Windows, calls QueryPerformanceCounter.
+*
+* Under GCC or Clang on supported platforms the hardware cycle counter is queried.
+* Currently supported processors are x86, PPC, Alpha, SPARC, IA-64, S/390x, and HP-PA.
+* If no CPU cycle counter is available on this system, returns zero.
+*/
+uint64_t BOTAN_TEST_API get_processor_timestamp();
+
+/*
+* @return best resolution timestamp available
+*
+* The epoch and update rate of this clock is arbitrary and depending
+* on the hardware it may not tick at a constant rate.
+*
+* Uses hardware cycle counter, if available.
+* On POSIX platforms clock_gettime is used with a monotonic timer
+* As a final fallback std::chrono::high_resolution_clock is used.
+*/
+uint64_t BOTAN_TEST_API get_high_resolution_clock();
+
+/**
+* @return system clock (reflecting wall clock) with best resolution
+* available, normalized to nanoseconds resolution.
+*/
+uint64_t BOTAN_TEST_API get_system_timestamp_ns();
+
+/**
+* @return maximum amount of memory (in bytes) Botan could/should
+* hyptothetically allocate for the memory poool. Reads environment
+* variable "BOTAN_MLOCK_POOL_SIZE", set to "0" to disable pool.
+*/
+size_t get_memory_locking_limit();
+
+/**
+* Return the size of a memory page, if that can be derived on the
+* current system. Otherwise returns some default value (eg 4096)
+*/
+size_t system_page_size();
+
+/**
+* Request so many bytes of page-aligned RAM locked into memory using
+* mlock, VirtualLock, or similar. Returns null on failure. The memory
+* returned is zeroed. Free it with free_locked_pages.
+* @param length requested allocation in bytes
+*/
+void* allocate_locked_pages(size_t length);
+
+/**
+* Free memory allocated by allocate_locked_pages
+* @param ptr a pointer returned by allocate_locked_pages
+* @param length length passed to allocate_locked_pages
+*/
+void free_locked_pages(void* ptr, size_t length);
+
+/**
+* Run a probe instruction to test for support for a CPU instruction.
+* Runs in system-specific env that catches illegal instructions; this
+* function always fails if the OS doesn't provide this.
+* Returns value of probe_fn, if it could run.
+* If error occurs, returns negative number.
+* This allows probe_fn to indicate errors of its own, if it wants.
+* For example the instruction might not only be only available on some
+* CPUs, but also buggy on some subset of these - the probe function
+* can test to make sure the instruction works properly before
+* indicating that the instruction is available.
+*
+* @warning on Unix systems uses signal handling in a way that is not
+* thread safe. It should only be called in a single-threaded context
+* (ie, at static init time).
+*
+* If probe_fn throws an exception the result is undefined.
+*
+* Return codes:
+* -1 illegal instruction detected
+*/
+int BOTAN_TEST_API run_cpu_instruction_probe(std::function<int ()> probe_fn);
+
+}
+
+}
+
+#endif