4 files changed, 46 insertions, 9 deletions
diff --git a/src/blockchain_utilities/blockchain_import.cpp b/src/blockchain_utilities/blockchain_import.cpp
index e4efdc3cb..8454595ac 100644
--- a/src/blockchain_utilities/blockchain_import.cpp
+++ b/src/blockchain_utilities/blockchain_import.cpp
@@ -294,7 +294,8 @@ int import_from_file(cryptonote::core& core, const std::string& import_file_path
   }
 
   // 4 byte magic + (currently) 1024 byte header structures
-  bootstrap.seek_to_first_chunk(import_file);
+  uint8_t major_version, minor_version;
+  bootstrap.seek_to_first_chunk(import_file, major_version, minor_version);
 
   std::string str1;
   char buffer1[1024];
@@ -415,7 +416,23 @@ int import_from_file(cryptonote::core& core, const std::string& import_file_path
     {
       str1.assign(buffer_block, chunk_size);
       bootstrap::block_package bp;
-      if (! ::serialization::parse_binary(str1, bp))
+      bool res;
+      if (major_version == 0)
+      {
+        bootstrap::block_package_1 bp1;
+        res = ::serialization::parse_binary(str1, bp1);
+        if (res)
+        {
+          bp.block = std::move(bp1.block);
+          bp.txs = std::move(bp1.txs);
+          bp.block_weight = bp1.block_weight;
+          bp.cumulative_difficulty = bp1.cumulative_difficulty;
+          bp.coins_generated = bp1.coins_generated;
+        }
+      }
+      else
+        res = ::serialization::parse_binary(str1, bp);
+      if (!res)
         throw std::runtime_error("Error in deserialization of chunk");
 
       int display_interval = 1000;
diff --git a/src/blockchain_utilities/bootstrap_file.cpp b/src/blockchain_utilities/bootstrap_file.cpp
index fb9a24f5d..252c79776 100644
--- a/src/blockchain_utilities/bootstrap_file.cpp
+++ b/src/blockchain_utilities/bootstrap_file.cpp
@@ -124,8 +124,8 @@ bool BootstrapFile::initialize_file()
   *m_raw_data_file << blob;
 
   bootstrap::file_info bfi;
-  bfi.major_version = 0;
-  bfi.minor_version = 1;
+  bfi.major_version = 1;
+  bfi.minor_version = 0;
   bfi.header_size = header_size;
 
   bootstrap::blocks_info bbi;
@@ -323,7 +323,7 @@ bool BootstrapFile::store_blockchain_raw(Blockchain* _blockchain_storage, tx_mem
   return BootstrapFile::close();
 }
 
-uint64_t BootstrapFile::seek_to_first_chunk(std::ifstream& import_file)
+uint64_t BootstrapFile::seek_to_first_chunk(std::ifstream& import_file, uint8_t &major_version, uint8_t &minor_version)
 {
   uint32_t file_magic;
 
@@ -371,6 +371,8 @@ uint64_t BootstrapFile::seek_to_first_chunk(std::ifstream& import_file)
   uint64_t full_header_size = sizeof(file_magic) + bfi.header_size;
   import_file.seekg(full_header_size);
 
+  major_version = bfi.major_version;
+  minor_version = bfi.minor_version;
   return full_header_size;
 }
 
@@ -461,7 +463,8 @@ uint64_t BootstrapFile::count_blocks(const std::string& import_file_path, std::s
   }
 
   uint64_t full_header_size; // 4 byte magic + length of header structures
-  full_header_size = seek_to_first_chunk(import_file);
+  uint8_t major_version, minor_version;
+  full_header_size = seek_to_first_chunk(import_file, major_version, minor_version);
 
   MINFO("Scanning blockchain from bootstrap file...");
   bool quit = false;
diff --git a/src/blockchain_utilities/bootstrap_file.h b/src/blockchain_utilities/bootstrap_file.h
index 5fb2cf366..1e6ef5d81 100644
--- a/src/blockchain_utilities/bootstrap_file.h
+++ b/src/blockchain_utilities/bootstrap_file.h
@@ -60,7 +60,7 @@ public:
   uint64_t count_bytes(std::ifstream& import_file, uint64_t blocks, uint64_t& h, bool& quit);
   uint64_t count_blocks(const std::string& dir_path, std::streampos& start_pos, uint64_t& seek_height);
   uint64_t count_blocks(const std::string& dir_path);
-  uint64_t seek_to_first_chunk(std::ifstream& import_file);
+  uint64_t seek_to_first_chunk(std::ifstream& import_file, uint8_t &major_version, uint8_t &minor_version);
 
   bool store_blockchain_raw(cryptonote::Blockchain* cs, cryptonote::tx_memory_pool* txp,
       boost::filesystem::path& output_file, uint64_t use_block_height=0);
diff --git a/src/blockchain_utilities/bootstrap_serialization.h b/src/blockchain_utilities/bootstrap_serialization.h
index 554c6d56e..70b3eea7e 100644
--- a/src/blockchain_utilities/bootstrap_serialization.h
+++ b/src/blockchain_utilities/bootstrap_serialization.h
@@ -29,7 +29,7 @@
 #pragma once
 
 #include "cryptonote_basic/cryptonote_boost_serialization.h"
-#include "cryptonote_basic/difficulty.h"
+#include "serialization/difficulty_type.h"
 
 
 namespace cryptonote
@@ -66,6 +66,23 @@ namespace cryptonote
       END_SERIALIZE()
     };
 
+    struct block_package_1
+    {
+      cryptonote::block block;
+      std::vector<transaction> txs;
+      size_t block_weight;
+      uint64_t cumulative_difficulty;
+      uint64_t coins_generated;
+
+      BEGIN_SERIALIZE()
+        FIELD(block)
+        FIELD(txs)
+        VARINT_FIELD(block_weight)
+        VARINT_FIELD(cumulative_difficulty)
+        VARINT_FIELD(coins_generated)
+      END_SERIALIZE()
+    };
+
     struct block_package
     {
       cryptonote::block block;
@@ -78,7 +95,7 @@ namespace cryptonote
         FIELD(block)
         FIELD(txs)
         VARINT_FIELD(block_weight)
-        VARINT_FIELD(cumulative_difficulty)
+        FIELD(cumulative_difficulty)
         VARINT_FIELD(coins_generated)
       END_SERIALIZE()
     };