win32: use dht random_device implementation

- this patch bump opendht (needed a header not installed)

- still use std::random_device on linux

Issue: #76261
Change-Id: Ie8a5c26b74b00900f55576384c2db0605903e3e1

contrib/src/opendht/rules.mak

 # OPENDHT
-OPENDHT_VERSION := 4ad1495e393917ab292fabdd9a918f86d43df13f
+OPENDHT_VERSION := 930e3e890bae83356ab04959c37aab970717dd05
 OPENDHT_URL := https://github.com/savoirfairelinux/opendht/archive/$(OPENDHT_VERSION).tar.gz
 
 PKGS += opendht

src/account.cpp

@@ -47,6 +47,13 @@
 #include "logger.h"
 #include "manager.h"
 
+#if HAVE_DHT
+#include <opendht/rng.h>
+using random_device = dht::crypto::random_device;
+#else
+using random_device = std::random_device;
+#endif
+
 #include "client/ring_signal.h"
 #include "account_schema.h"
 #include "string_utils.h"
@@ -111,15 +118,8 @@ Account::Account(const std::string &accountID)
     , mailBox_()
     , upnp_(new upnp::Controller())
 {
-#ifndef _WIN32
-    std::random_device rdev;
+    random_device rdev;
     std::seed_seq seed {rdev(), rdev()};
-#else
-    int seed_data[std::mt19937::state_size];
-    std::default_random_engine dre(std::chrono::system_clock::now().time_since_epoch().count());
-    std::generate_n(seed_data, std::mt19937::state_size, std::ref(dre));
-    std::seed_seq seed(std::begin(seed_data), std::end(seed_data));
-#endif
     rand_.seed(seed);
 
     // Initialize the codec order, used when creating a new account

src/manager.cpp

@@ -50,6 +50,10 @@
 #include "string_utils.h"
 #if HAVE_DHT
 #include "ringdht/ringaccount.h"
+#include <opendht/rng.h>
+using random_device = dht::crypto::random_device;
+#else
+using random_device = std::random_device;
 #endif
 
 #include "call_factory.h"
@@ -221,15 +225,9 @@ Manager::Manager() :
 {
     // initialize random generator
     // mt19937_64 should be seeded with 2 x 32 bits
-#ifndef _WIN32
-    std::random_device rdev;
+
+    random_device rdev;
     std::seed_seq seed {rdev(), rdev()};
-#else
-    int seed_data[std::mt19937::state_size];
-    std::default_random_engine dre(std::chrono::system_clock::now().time_since_epoch().count());
-    std::generate_n(seed_data, std::mt19937::state_size, std::ref(dre));
-    std::seed_seq seed(std::begin(seed_data), std::end(seed_data));
-#endif
     rand_.seed(seed);
 
     ring::libav_utils::ring_avcodec_init();

src/sip/sdp.cpp

@@ -52,6 +52,13 @@
 #include "system_codec_container.h"
 #include "intrin.h" // for UNUSED
 
+#if HAVE_DHT
+#include <opendht/rng.h>
+using random_device = dht::crypto::random_device;
+#else
+using random_device = std::random_device;
+#endif
+
 #include <algorithm>
 #include <cassert>
 
@@ -132,11 +139,7 @@ static void
 randomFill(std::vector<uint8_t>& dest)
 {
     std::uniform_int_distribution<uint8_t> rand_byte(0, 255);
-#ifndef _WIN32
-    std::random_device rdev;
-#else
-    std::default_random_engine rdev(std::chrono::system_clock::now().time_since_epoch().count());
-#endif
+    random_device rdev;
     std::generate(dest.begin(), dest.end(), std::bind(rand_byte, std::ref(rdev)));
 }
 

src/upnp/upnp_context.cpp

@@ -53,6 +53,13 @@
 #include "upnp_igd.h"
 #include "intrin.h"
 
+#if HAVE_DHT
+#include <opendht/rng.h>
+using random_device = dht::crypto::random_device;
+#else
+using random_device = std::random_device;
+#endif
+
 namespace ring { namespace upnp {
 
 /**
@@ -285,11 +292,7 @@ static uint16_t
 generateRandomPort()
 {
     /* obtain a random number from hardware */
-#ifndef _WIN32
-    static std::random_device rd;
-#else
-    static std::default_random_engine rd(std::chrono::system_clock::now().time_since_epoch().count());
-#endif
+    static random_device rd;
     /* seed the generator */
     static std::mt19937 gen(rd());
     /* define the range */