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authorbunnei <bunneidev@gmail.com>2018-11-13 06:10:08 +0100
committerGitHub <noreply@github.com>2018-11-13 06:10:08 +0100
commit7f3c2525e6928ff6df7e19d8c01172c5ebacc02e (patch)
tree070cf3a270789b3645b401b8b9f4ea928baaf2f3 /src/core
parentMerge pull request #1665 from ogniK5377/GetClockSnapshot (diff)
parentsvc: Return random seed for svcGetInfo RandomEntropy (diff)
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Diffstat (limited to 'src/core')
-rw-r--r--src/core/hle/kernel/svc.cpp3
-rw-r--r--src/core/hle/service/spl/module.cpp9
-rw-r--r--src/core/hle/service/spl/module.h4
-rw-r--r--src/core/settings.h2
4 files changed, 15 insertions, 3 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp
index 7e8e87c33..0bfe1e3be 100644
--- a/src/core/hle/kernel/svc.cpp
+++ b/src/core/hle/kernel/svc.cpp
@@ -34,6 +34,7 @@
#include "core/hle/lock.h"
#include "core/hle/result.h"
#include "core/hle/service/service.h"
+#include "core/settings.h"
namespace Kernel {
namespace {
@@ -558,7 +559,7 @@ static ResultCode GetInfo(u64* result, u64 info_id, u64 handle, u64 info_sub_id)
*result = 0;
break;
case GetInfoType::RandomEntropy:
- *result = 0;
+ *result = Settings::values.rng_seed.value_or(0);
break;
case GetInfoType::ASLRRegionBaseAddr:
*result = vm_manager.GetASLRRegionBaseAddress();
diff --git a/src/core/hle/service/spl/module.cpp b/src/core/hle/service/spl/module.cpp
index 44a6717d0..69c260408 100644
--- a/src/core/hle/service/spl/module.cpp
+++ b/src/core/hle/service/spl/module.cpp
@@ -3,18 +3,23 @@
// Refer to the license.txt file included.
#include <algorithm>
+#include <chrono>
#include <cstdlib>
+#include <ctime>
+#include <functional>
#include <vector>
#include "common/logging/log.h"
#include "core/hle/ipc_helpers.h"
#include "core/hle/service/spl/csrng.h"
#include "core/hle/service/spl/module.h"
#include "core/hle/service/spl/spl.h"
+#include "core/settings.h"
namespace Service::SPL {
Module::Interface::Interface(std::shared_ptr<Module> module, const char* name)
- : ServiceFramework(name), module(std::move(module)) {}
+ : ServiceFramework(name), module(std::move(module)),
+ rng(Settings::values.rng_seed.value_or(std::time(nullptr))) {}
Module::Interface::~Interface() = default;
@@ -24,7 +29,7 @@ void Module::Interface::GetRandomBytes(Kernel::HLERequestContext& ctx) {
std::size_t size = ctx.GetWriteBufferSize();
std::vector<u8> data(size);
- std::generate(data.begin(), data.end(), std::rand);
+ std::generate(data.begin(), data.end(), rng);
ctx.WriteBuffer(data);
diff --git a/src/core/hle/service/spl/module.h b/src/core/hle/service/spl/module.h
index 48fda6099..afa1f0295 100644
--- a/src/core/hle/service/spl/module.h
+++ b/src/core/hle/service/spl/module.h
@@ -4,6 +4,7 @@
#pragma once
+#include <random>
#include "core/hle/service/service.h"
namespace Service::SPL {
@@ -19,6 +20,9 @@ public:
protected:
std::shared_ptr<Module> module;
+
+ private:
+ std::mt19937 rng;
};
};
diff --git a/src/core/settings.h b/src/core/settings.h
index a8954647f..83a1a7069 100644
--- a/src/core/settings.h
+++ b/src/core/settings.h
@@ -6,6 +6,7 @@
#include <array>
#include <atomic>
+#include <optional>
#include <string>
#include "common/common_types.h"
@@ -114,6 +115,7 @@ struct Values {
// System
bool use_docked_mode;
bool enable_nfc;
+ std::optional<u64> rng_seed;
s32 current_user;
s32 language_index;