Test OS features by the feature vs the OS name

15 files changed, 69 insertions, 134 deletions

diff --git a/src/lib/entropy/darwin_secrandom/info.txt b/src/lib/entropy/darwin_secrandom/info.txt
index 477818818..c1943a04a 100644
--- a/src/lib/entropy/darwin_secrandom/info.txt
+++ b/src/lib/entropy/darwin_secrandom/info.txt
@@ -6,10 +6,9 @@ ENTROPY_SRC_DARWIN_SECRANDOM -> 20150925
 darwin_secrandom.h
 </header:internal>
 
-<os>
-darwin
-ios
-</os>
+<os_features>
+security_framework
+</os_features>
 
 <frameworks>
 darwin -> Security
diff --git a/src/lib/entropy/dev_random/info.txt b/src/lib/entropy/dev_random/info.txt
index d22f18211..3872411f3 100644
--- a/src/lib/entropy/dev_random/info.txt
+++ b/src/lib/entropy/dev_random/info.txt
@@ -6,19 +6,6 @@ ENTROPY_SRC_DEV_RANDOM -> 20131128
 dev_random.h
 </header:internal>
 
-<os>
-aix
-android
-cygwin
-darwin
-dragonfly
-freebsd
-haiku
-hpux
-hurd
-linux
-netbsd
-openbsd
-qnx
-solaris
-</os>
+<os_features>
+dev_random,posix1
+</os_features>
diff --git a/src/lib/entropy/getentropy/info.txt b/src/lib/entropy/getentropy/info.txt
index a44299cbe..886e57151 100644
--- a/src/lib/entropy/getentropy/info.txt
+++ b/src/lib/entropy/getentropy/info.txt
@@ -6,6 +6,6 @@ ENTROPY_SRC_GETENTROPY -> 20170327
 getentropy.h
 </header:internal>
 
-<os>
-openbsd
-</os>
+<os_features>
+getentropy
+</os_features>
diff --git a/src/lib/entropy/proc_walk/info.txt b/src/lib/entropy/proc_walk/info.txt
index f93d0cb3f..2bba7e276 100644
--- a/src/lib/entropy/proc_walk/info.txt
+++ b/src/lib/entropy/proc_walk/info.txt
@@ -6,16 +6,6 @@ ENTROPY_SRC_PROC_WALKER -> 20131128
 proc_walk.h
 </header:internal>
 
-<os>
-android
-aix
-cygwin
-darwin
-dragonfly
-hpux
-hurd
-linux
-netbsd
-qnx
-solaris
-</os>
+<os_features>
+posix1,proc_fs
+</os_features>
diff --git a/src/lib/entropy/win32_stats/info.txt b/src/lib/entropy/win32_stats/info.txt
index 7c84fc235..68abae34e 100644
--- a/src/lib/entropy/win32_stats/info.txt
+++ b/src/lib/entropy/win32_stats/info.txt
@@ -6,11 +6,9 @@ ENTROPY_SRC_WIN32 -> 20131128
 es_win32.h
 </header:internal>
 
-<os>
-windows
-cygwin
-mingw
-</os>
+<os_features>
+win32
+</os_features>
 
 <libs>
 windows -> user32.lib
diff --git a/src/lib/filters/fd_unix/info.txt b/src/lib/filters/fd_unix/info.txt
index 4679cb4d5..41e7a23a5 100644
--- a/src/lib/filters/fd_unix/info.txt
+++ b/src/lib/filters/fd_unix/info.txt
@@ -4,18 +4,6 @@ PIPE_UNIXFD_IO -> 20131128
 
 load_on auto
 
-<os>
-android
-aix
-cygwin
-darwin
-dragonfly
-freebsd
-haiku
-hpux
-linux
-netbsd
-openbsd
-qnx
-solaris
-</os>
+<os_features>
+posix1
+</os_features>
diff --git a/src/lib/rng/system_rng/info.txt b/src/lib/rng/system_rng/info.txt
index 0c04fa21c..8f25bf84c 100644
--- a/src/lib/rng/system_rng/info.txt
+++ b/src/lib/rng/system_rng/info.txt
@@ -2,27 +2,12 @@
 SYSTEM_RNG -> 20141202
 </defines>
 
-<os>
-aix
-android
-cygwin
-darwin
-dragonfly
-freebsd
-haiku
-hpux
-hurd
-includeos
-ios
-linux
-mingw
-netbsd
-openbsd
-qnx
-solaris
-windows
-winphone
-</os>
+<os_features>
+dev_random,posix1
+arc4random
+crypto_ng
+cryptgenrandom
+</os_features>
 
 <libs>
 windows -> advapi32.lib
diff --git a/src/lib/utils/calendar.cpp b/src/lib/utils/calendar.cpp
index e902e411d..fe04f1d23 100644
--- a/src/lib/utils/calendar.cpp
+++ b/src/lib/utils/calendar.cpp
@@ -21,9 +21,9 @@ std::tm do_gmtime(std::time_t time_val)
    {
    std::tm tm;
 
-#if defined(BOTAN_TARGET_OS_HAS_GMTIME_S)
+#if defined(BOTAN_TARGET_OS_HAS_WIN32)
    ::gmtime_s(&tm, &time_val); // Windows
-#elif defined(BOTAN_TARGET_OS_HAS_GMTIME_R)
+#elif defined(BOTAN_TARGET_OS_HAS_POSIX1)
    ::gmtime_r(&time_val, &tm); // Unix/SUSv2
 #else
    std::tm* tm_p = std::gmtime(&time_val);
diff --git a/src/lib/utils/dyn_load/dyn_load.cpp b/src/lib/utils/dyn_load/dyn_load.cpp
index 33288b8d1..b7f2649ef 100644
--- a/src/lib/utils/dyn_load/dyn_load.cpp
+++ b/src/lib/utils/dyn_load/dyn_load.cpp
@@ -8,9 +8,9 @@
 #include <botan/dyn_load.h>
 #include <botan/exceptn.h>
 
-#if defined(BOTAN_TARGET_OS_HAS_DLOPEN)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
   #include <dlfcn.h>
-#elif defined(BOTAN_TARGET_OS_HAS_LOADLIBRARY)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
   #define NOMINMAX 1
   #define _WINSOCKAPI_ // stop windows.h including winsock.h
   #include <windows.h>
@@ -24,7 +24,7 @@ void raise_runtime_loader_exception(const std::string& lib_name,
                                     const char* msg)
    {
    throw Exception("Failed to load " + lib_name + ": " +
-                            (msg ? msg : "Unknown error"));
+                   (msg ? msg : "Unknown error"));
    }
 
 }
@@ -33,13 +33,13 @@ Dynamically_Loaded_Library::Dynamically_Loaded_Library(
    const std::string& library) :
    m_lib_name(library), m_lib(nullptr)
    {
-#if defined(BOTAN_TARGET_OS_HAS_DLOPEN)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
    m_lib = ::dlopen(m_lib_name.c_str(), RTLD_LAZY);
 
    if(!m_lib)
       raise_runtime_loader_exception(m_lib_name, ::dlerror());
 
-#elif defined(BOTAN_TARGET_OS_HAS_LOADLIBRARY)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
    m_lib = ::LoadLibraryA(m_lib_name.c_str());
 
    if(!m_lib)
@@ -52,9 +52,9 @@ Dynamically_Loaded_Library::Dynamically_Loaded_Library(
 
 Dynamically_Loaded_Library::~Dynamically_Loaded_Library()
    {
-#if defined(BOTAN_TARGET_OS_HAS_DLOPEN)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
    ::dlclose(m_lib);
-#elif defined(BOTAN_TARGET_OS_HAS_LOADLIBRARY)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
    ::FreeLibrary((HMODULE)m_lib);
 #endif
    }
@@ -63,11 +63,10 @@ void* Dynamically_Loaded_Library::resolve_symbol(const std::string& symbol)
    {
    void* addr = nullptr;
 
-#if defined(BOTAN_TARGET_OS_HAS_DLOPEN)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
    addr = ::dlsym(m_lib, symbol.c_str());
-#elif defined(BOTAN_TARGET_OS_HAS_LOADLIBRARY)
-   addr = reinterpret_cast<void*>(::GetProcAddress((HMODULE)m_lib,
-                                                   symbol.c_str()));
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
+   addr = reinterpret_cast<void*>(::GetProcAddress((HMODULE)m_lib, symbol.c_str()));
 #endif
 
    if(!addr)
diff --git a/src/lib/utils/dyn_load/info.txt b/src/lib/utils/dyn_load/info.txt
index 2caeac728..4dd4932a0 100644
--- a/src/lib/utils/dyn_load/info.txt
+++ b/src/lib/utils/dyn_load/info.txt
@@ -4,17 +4,10 @@ DYNAMIC_LOADER -> 20160310
 
 load_on dep
 
-<os>
-android
-freebsd
-linux
-netbsd
-openbsd
-qnx
-solaris
-windows
-darwin
-</os>
+<os_features>
+posix1
+win32
+</os_features>
 
 <libs>
 android -> dl
diff --git a/src/lib/utils/filesystem.cpp b/src/lib/utils/filesystem.cpp
index fd4aee1f0..29f73fcb3 100644
--- a/src/lib/utils/filesystem.cpp
+++ b/src/lib/utils/filesystem.cpp
@@ -13,14 +13,14 @@
   #include <filesystem>
 #elif defined(BOTAN_HAS_BOOST_FILESYSTEM)
   #include <boost/filesystem.hpp>
-#elif defined(BOTAN_TARGET_OS_HAS_READDIR)
+#elif defined(BOTAN_TARGET_OS_HAS_POSIX1)
   #include <sys/types.h>
   #include <sys/stat.h>
   #include <dirent.h>
   #include <deque>
   #include <memory>
   #include <functional>
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
   #define NOMINMAX 1
   #define _WINSOCKAPI_ // stop windows.h including winsock.h
   #include <windows.h>
@@ -74,7 +74,8 @@ std::vector<std::string> impl_boost_filesystem(const std::string& dir_path)
    return out;
 }
 
-#elif defined(BOTAN_TARGET_OS_HAS_READDIR)
+#elif defined(BOTAN_TARGET_OS_HAS_POSIX1)
+
 std::vector<std::string> impl_readdir(const std::string& dir_path)
    {
    std::vector<std::string> out;
@@ -113,7 +114,7 @@ std::vector<std::string> impl_readdir(const std::string& dir_path)
    return out;
    }
 
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
 
 std::vector<std::string> impl_win32(const std::string& dir_path)
    {
@@ -167,9 +168,9 @@ std::vector<std::string> get_files_recursive(const std::string& dir)
    files = impl_stl_filesystem(dir);
 #elif defined(BOTAN_HAS_BOOST_FILESYSTEM)
    files = impl_boost_filesystem(dir);
-#elif defined(BOTAN_TARGET_OS_HAS_READDIR)
+#elif defined(BOTAN_TARGET_OS_HAS_POSIX1)
    files = impl_readdir(dir);
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
    files = impl_win32(dir);
 #else
    BOTAN_UNUSED(dir);
diff --git a/src/lib/utils/locking_allocator/info.txt b/src/lib/utils/locking_allocator/info.txt
index 5f848f62d..7dc3c059d 100644
--- a/src/lib/utils/locking_allocator/info.txt
+++ b/src/lib/utils/locking_allocator/info.txt
@@ -2,10 +2,7 @@
 LOCKING_ALLOCATOR -> 20131128
 </defines>
 
-<os>
-linux
-freebsd
-openbsd
-netbsd
-windows
-</os>
+<os_features>
+posix1
+virtual_lock
+</os_features>
diff --git a/src/lib/utils/mutex.h b/src/lib/utils/mutex.h
index 6e24815bb..34fed5c81 100644
--- a/src/lib/utils/mutex.h
+++ b/src/lib/utils/mutex.h
@@ -20,7 +20,7 @@ typedef std::mutex mutex_type;
 
 }
 
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_UNIKERNEL) || defined(BOTAN_TARGET_OS_IS_LLVM)
+#else
 
 // No threads
 
@@ -53,8 +53,6 @@ template<typename T> using lock_guard_type = lock_guard<T>;
 
 }
 
-#else
-  #error "Threads unexpectedly disabled in non unikernel build"
 #endif
 
 #endif
diff --git a/src/lib/utils/os_utils.cpp b/src/lib/utils/os_utils.cpp
index 48890964a..0f3ab7a32 100644
--- a/src/lib/utils/os_utils.cpp
+++ b/src/lib/utils/os_utils.cpp
@@ -18,7 +18,7 @@
   #include <string.h>
 #endif
 
-#if defined(BOTAN_TARGET_OS_TYPE_IS_UNIX)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
   #include <sys/types.h>
   #include <sys/resource.h>
   #include <sys/mman.h>
@@ -26,7 +26,7 @@
   #include <setjmp.h>
   #include <unistd.h>
   #include <errno.h>
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
   #define NOMINMAX 1
   #include <windows.h>
 #endif
@@ -63,11 +63,11 @@ void secure_scrub_memory(void* ptr, size_t n)
 
 uint32_t OS::get_process_id()
    {
-#if defined(BOTAN_TARGET_OS_TYPE_IS_UNIX)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
    return ::getpid();
-#elif defined(BOTAN_TARGET_OS_IS_WINDOWS) || defined(BOTAN_TARGET_OS_IS_MINGW)
+#elif defined(BOTAN_TARGET_OS_HAS_WIN32)
    return ::GetCurrentProcessId();
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_UNIKERNEL) || defined(BOTAN_TARGET_OS_IS_LLVM)
+#elif defined(BOTAN_TARGET_OS_IS_INCLUDEOS) || defined(BOTAN_TARGET_OS_IS_LLVM)
    return 0; // truly no meaningful value
 #else
    #error "Missing get_process_id"
@@ -78,7 +78,7 @@ uint64_t OS::get_processor_timestamp()
    {
    uint64_t rtc = 0;
 
-#if defined(BOTAN_TARGET_OS_HAS_QUERY_PERF_COUNTER)
+#if defined(BOTAN_TARGET_OS_HAS_WIN32)
    LARGE_INTEGER tv;
    ::QueryPerformanceCounter(&tv);
    rtc = tv.QuadPart;
@@ -196,7 +196,7 @@ uint64_t OS::get_system_timestamp_ns()
 
 size_t OS::get_memory_locking_limit()
    {
-#if defined(BOTAN_TARGET_OS_HAS_POSIX_MLOCK)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
    /*
    * Linux defaults to only 64 KiB of mlockable memory per process
    * (too small) but BSDs offer a small fraction of total RAM (more
@@ -282,7 +282,7 @@ size_t OS::get_memory_locking_limit()
 
 void* OS::allocate_locked_pages(size_t length)
    {
-#if defined(BOTAN_TARGET_OS_HAS_POSIX_MLOCK)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
 
 #if !defined(MAP_NOCORE)
    #define MAP_NOCORE 0
@@ -342,11 +342,11 @@ void OS::free_locked_pages(void* ptr, size_t length)
    if(ptr == nullptr || length == 0)
       return;
 
-#if defined(BOTAN_TARGET_OS_HAS_POSIX_MLOCK)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
    secure_scrub_memory(ptr, length);
    ::munlock(ptr, length);
    ::munmap(ptr, length);
-#elif defined BOTAN_TARGET_OS_HAS_VIRTUAL_LOCK
+#elif defined(BOTAN_TARGET_OS_HAS_VIRTUAL_LOCK)
    secure_scrub_memory(ptr, length);
    ::VirtualUnlock(ptr, length);
    ::VirtualFree(ptr, 0, MEM_RELEASE);
@@ -356,7 +356,7 @@ void OS::free_locked_pages(void* ptr, size_t length)
 #endif
    }
 
-#if defined(BOTAN_TARGET_OS_TYPE_IS_UNIX)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
 namespace {
 
 static ::sigjmp_buf g_sigill_jmp_buf;
@@ -373,7 +373,7 @@ int OS::run_cpu_instruction_probe(std::function<int ()> probe_fn)
    {
    volatile int probe_result = -3;
 
-#if defined(BOTAN_TARGET_OS_TYPE_IS_UNIX)
+#if defined(BOTAN_TARGET_OS_HAS_POSIX1)
    struct sigaction old_sigaction;
    struct sigaction sigaction;
 
diff --git a/src/lib/utils/socket/socket.cpp b/src/lib/utils/socket/socket.cpp
index 1020a2f5d..b75b4981c 100644
--- a/src/lib/utils/socket/socket.cpp
+++ b/src/lib/utils/socket/socket.cpp
@@ -20,7 +20,7 @@
   #include <boost/asio.hpp>
   #include <boost/asio/system_timer.hpp>
 
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_UNIX)
+#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS)
   #include <sys/socket.h>
   #include <sys/time.h>
   #include <netinet/in.h>
@@ -30,7 +30,7 @@
   #include <errno.h>
   #include <fcntl.h>
 
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS) && !defined(BOTAN_TARGET_OS_IS_MINGW)
+#elif defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
   #define NOMINMAX 1
   #include <winsock2.h>
   #include <ws2tcpip.h>
@@ -136,12 +136,12 @@ class Asio_Socket final : public OS::Socket
       boost::asio::ip::tcp::socket m_tcp;
    };
 
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_UNIX) || (defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS) && !defined(BOTAN_TARGET_OS_IS_MINGW))
+#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS) || defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
 
 class BSD_Socket final : public OS::Socket
    {
    private:
-#if defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS)
+#if defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
       typedef SOCKET socket_type;
       typedef int socket_op_ret_type;
       static socket_type invalid_socket() { return INVALID_SOCKET; }
@@ -356,7 +356,7 @@ OS::open_socket(const std::string& hostname,
 #if defined(BOTAN_HAS_BOOST_ASIO)
    return std::unique_ptr<OS::Socket>(new Asio_Socket(hostname, service, timeout));
 
-#elif defined(BOTAN_TARGET_OS_TYPE_IS_UNIX) || (defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS) && !defined(BOTAN_TARGET_OS_IS_MINGW))
+#elif defined(BOTAN_TARGET_OS_HAS_SOCKETS) || defined(BOTAN_TARGET_OS_HAS_WINSOCK2)
    return std::unique_ptr<OS::Socket>(new BSD_Socket(hostname, service, timeout));
 
 #else