From ab552e4a252b66ca02c04724a1773edbefec6837 Mon Sep 17 00:00:00 2001
From: Zach Hilman <zachhilman@gmail.com>
Date: Tue, 13 Nov 2018 12:25:43 -0500
Subject: svc: Use proper random entropy generation algorithm

---
 src/core/hle/kernel/process.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/core/hle/kernel/process.h')

diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h
index 8d2616c79..95aa63ea1 100644
--- a/src/core/hle/kernel/process.h
+++ b/src/core/hle/kernel/process.h
@@ -8,6 +8,7 @@
 #include <bitset>
 #include <cstddef>
 #include <memory>
+#include <random>
 #include <string>
 #include <vector>
 #include <boost/container/static_vector.hpp>
@@ -119,6 +120,8 @@ struct CodeSet final {
 
 class Process final : public Object {
 public:
+    static constexpr std::size_t RANDOM_ENTROPY_SIZE = 4;
+
     static SharedPtr<Process> Create(KernelCore& kernel, std::string&& name);
 
     std::string GetTypeName() const override {
@@ -212,6 +215,11 @@ public:
         total_process_running_time_ticks += ticks;
     }
 
+    /// Gets 8 bytes of random data for svcGetInfo RandomEntropy
+    u64 GetRandomEntropy(std::size_t index) const {
+        return random_entropy.at(index);
+    }
+
     /**
      * Loads process-specifics configuration info with metadata provided
      * by an executable.
@@ -321,6 +329,9 @@ private:
     /// Per-process handle table for storing created object handles in.
     HandleTable handle_table;
 
+    /// Random values for svcGetInfo RandomEntropy
+    std::array<u64, RANDOM_ENTROPY_SIZE> random_entropy;
+
     std::string name;
 };
 
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