Merge 10282 via timebomb_knots-0.15

src/bitcoind.cpp

@@ -130,6 +130,11 @@ bool AppInit(int argc, char* argv[])
             }
         }
 
+        if (IsThisSoftwareExpired(GetTime())) {
+            fprintf(stderr, "This software is expired, and may be out of consensus. You must choose to upgrade or override this expiration.\n");
+            exit(EXIT_FAILURE);
+        }
+
         // -server defaults to true for bitcoind but not for the GUI so do this here
         gArgs.SoftSetBoolArg("-server", true);
         // Set this early so that parameter interactions go to console

src/clientversion.cpp

@@ -5,6 +5,8 @@
 #include "clientversion.h"
 
 #include "tinyformat.h"
+#include "utiltime.h"
+#include "util.h"
 
 #include <string>
 
@@ -101,3 +103,12 @@ std::string FormatSubVersion(const std::string& name, int nClientVersion, const
     ss << "/";
     return ss.str();
 }
+
+bool IsThisSoftwareExpired(int64_t nTime)
+{
+    int64_t nSoftwareExpiry = gArgs.GetArg("-softwareexpiry", DEFAULT_SOFTWARE_EXPIRY);
+    if (nSoftwareExpiry <= 0) {
+        nSoftwareExpiry = std::numeric_limits<int64_t>::max();
+    }
+    return (nTime > nSoftwareExpiry);
+}

src/clientversion.h

@@ -48,6 +48,12 @@ extern const std::string CLIENT_BUILD;
 std::string FormatFullVersion();
 std::string FormatSubVersion(const std::string& name, int nClientVersion, const std::vector<std::string>& comments);
 
+static const int64_t SECONDS_PER_YEAR = 31558060;
+static const int POSIX_EPOCH_YEAR = 1970;
+static const int64_t DEFAULT_SOFTWARE_EXPIRY = ((COPYRIGHT_YEAR - POSIX_EPOCH_YEAR) * SECONDS_PER_YEAR) + (SECONDS_PER_YEAR * 2);
+
+bool IsThisSoftwareExpired(int64_t nTime);
+
 #endif // WINDRES_PREPROC
 
 #endif // BITCOIN_CLIENTVERSION_H

src/init.cpp

@@ -14,6 +14,7 @@
 #include "chain.h"
 #include "chainparams.h"
 #include "checkpoints.h"
+#include "clientversion.h"
 #include "compat/sanity.h"
 #include "consensus/validation.h"
 #include "fs.h"
@@ -380,6 +381,9 @@ std::string HelpMessage(HelpMessageMode mode)
     }
     strUsage += HelpMessageOpt("-persistmempool", strprintf(_("Whether to save the mempool on shutdown and load on restart (default: %u)"), DEFAULT_PERSIST_MEMPOOL));
     strUsage += HelpMessageOpt("-blockreconstructionextratxn=<n>", strprintf(_("Extra transactions to keep in memory for compact block reconstructions (default: %u)"), DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN));
+    if (showDebug) {
+        strUsage += HelpMessageOpt("-softwareexpiry", strprintf("Stop working after this POSIX timestamp (default: %s)", DEFAULT_SOFTWARE_EXPIRY));
+    }
     strUsage += HelpMessageOpt("-par=<n>", strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"),
         -GetNumCores(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS));
 #ifndef WIN32

src/qt/bitcoin.cpp

@@ -26,6 +26,7 @@
 #include "walletmodel.h"
 #endif
 
+#include "clientversion.h"
 #include "init.h"
 #include "rpc/server.h"
 #include "scheduler.h"
@@ -675,6 +676,11 @@ int main(int argc, char *argv[])
     // Re-initialize translations after changing application name (language in network-specific settings can be different)
     initTranslations(qtTranslatorBase, qtTranslator, translatorBase, translator);
 
+    if (IsThisSoftwareExpired(GetTime())) {
+        QMessageBox::critical(0, QObject::tr("Software expired"), QObject::tr("This software is expired, and may be out of consensus. You must choose to upgrade or override this expiration."));
+        return EXIT_FAILURE;
+    }
+
 #ifdef ENABLE_WALLET
     /// 8. URI IPC sending
     // - Do this early as we don't want to bother initializing if we are just calling IPC

src/validation.cpp

@@ -10,6 +10,7 @@
 #include "chainparams.h"
 #include "checkpoints.h"
 #include "checkqueue.h"
+#include "clientversion.h"
 #include "consensus/consensus.h"
 #include "consensus/merkle.h"
 #include "consensus/tx_verify.h"
@@ -2872,6 +2873,10 @@ static bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state,
     if (fCheckPOW && !CheckProofOfWork(block.GetHash(), block.nBits, consensusParams))
         return state.DoS(50, false, REJECT_INVALID, "high-hash", false, "proof of work failed");
 
+    if (IsThisSoftwareExpired(block.nTime)) {
+        return state.DoS(0, false, REJECT_INVALID, "node-expired", true, "node software has expired");
+    }
+
     return true;
 }