diff options
Diffstat (limited to 'src/libs/3rdparty/botan/src/lib/entropy/entropy_srcs.cpp')
| -rw-r--r-- | src/libs/3rdparty/botan/src/lib/entropy/entropy_srcs.cpp | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/src/libs/3rdparty/botan/src/lib/entropy/entropy_srcs.cpp b/src/libs/3rdparty/botan/src/lib/entropy/entropy_srcs.cpp deleted file mode 100644 index 85e0b6dc5d..0000000000 --- a/src/libs/3rdparty/botan/src/lib/entropy/entropy_srcs.cpp +++ /dev/null @@ -1,188 +0,0 @@ -/* -* Entropy Source Polling -* (C) 2008-2010,2015 Jack Lloyd -* -* Botan is released under the Simplified BSD License (see license.txt) -*/ - -#include <botan/entropy_src.h> -#include <botan/rng.h> - -#if defined(BOTAN_HAS_SYSTEM_RNG) - #include <botan/system_rng.h> -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_RDRAND) - #include <botan/internal/rdrand.h> -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_RDSEED) - #include <botan/internal/rdseed.h> -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_DEV_RANDOM) - #include <botan/internal/dev_random.h> -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_WIN32) - #include <botan/internal/es_win32.h> -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_PROC_WALKER) - #include <botan/internal/proc_walk.h> - #include <botan/internal/os_utils.h> -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_GETENTROPY) - #include <botan/internal/getentropy.h> -#endif - -namespace Botan { - -#if defined(BOTAN_HAS_SYSTEM_RNG) - -namespace { - -class System_RNG_EntropySource final : public Entropy_Source - { - public: - size_t poll(RandomNumberGenerator& rng) override - { - const size_t poll_bits = BOTAN_RNG_RESEED_POLL_BITS; - rng.reseed_from_rng(system_rng(), poll_bits); - return poll_bits; - } - - std::string name() const override { return "system_rng"; } - }; - -} - -#endif - -std::unique_ptr<Entropy_Source> Entropy_Source::create(const std::string& name) - { -#if defined(BOTAN_HAS_SYSTEM_RNG) - if(name == "system_rng" || name == "win32_cryptoapi") - { - return std::unique_ptr<Entropy_Source>(new System_RNG_EntropySource); - } -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_RDRAND) - if(name == "rdrand") - { - return std::unique_ptr<Entropy_Source>(new Intel_Rdrand); - } -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_RDSEED) - if(name == "rdseed") - { - return std::unique_ptr<Entropy_Source>(new Intel_Rdseed); - } -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_GETENTROPY) - if(name == "getentropy") - { - return std::unique_ptr<Entropy_Source>(new Getentropy); - } -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_DEV_RANDOM) - if(name == "dev_random") - { - return std::unique_ptr<Entropy_Source>(new Device_EntropySource(BOTAN_SYSTEM_RNG_POLL_DEVICES)); - } -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_PROC_WALKER) - if(name == "proc_walk" && OS::running_in_privileged_state() == false) - { - const std::string root_dir = BOTAN_ENTROPY_PROC_FS_PATH; - if(!root_dir.empty()) - return std::unique_ptr<Entropy_Source>(new ProcWalking_EntropySource(root_dir)); - } -#endif - -#if defined(BOTAN_HAS_ENTROPY_SRC_WIN32) - if(name == "system_stats") - { - return std::unique_ptr<Entropy_Source>(new Win32_EntropySource); - } -#endif - - BOTAN_UNUSED(name); - return std::unique_ptr<Entropy_Source>(); - } - -void Entropy_Sources::add_source(std::unique_ptr<Entropy_Source> src) - { - if(src.get()) - { - m_srcs.push_back(std::move(src)); - } - } - -std::vector<std::string> Entropy_Sources::enabled_sources() const - { - std::vector<std::string> sources; - for(size_t i = 0; i != m_srcs.size(); ++i) - { - sources.push_back(m_srcs[i]->name()); - } - return sources; - } - -size_t Entropy_Sources::poll(RandomNumberGenerator& rng, - size_t poll_bits, - std::chrono::milliseconds timeout) - { - typedef std::chrono::system_clock clock; - - auto deadline = clock::now() + timeout; - - size_t bits_collected = 0; - - for(size_t i = 0; i != m_srcs.size(); ++i) - { - bits_collected += m_srcs[i]->poll(rng); - - if (bits_collected >= poll_bits || clock::now() > deadline) - break; - } - - return bits_collected; - } - -size_t Entropy_Sources::poll_just(RandomNumberGenerator& rng, const std::string& the_src) - { - for(size_t i = 0; i != m_srcs.size(); ++i) - { - if(m_srcs[i]->name() == the_src) - { - return m_srcs[i]->poll(rng); - } - } - - return 0; - } - -Entropy_Sources::Entropy_Sources(const std::vector<std::string>& sources) - { - for(auto&& src_name : sources) - { - add_source(Entropy_Source::create(src_name)); - } - } - -Entropy_Sources& Entropy_Sources::global_sources() - { - static Entropy_Sources global_entropy_sources(BOTAN_ENTROPY_DEFAULT_SOURCES); - - return global_entropy_sources; - } - -} - |