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| author | Perttu Ahola <celeron55@gmail.com> | 2012-11-26 09:49:07 +0200 |
|---|---|---|
| committer | Perttu Ahola <celeron55@gmail.com> | 2012-11-26 09:49:07 +0200 |
| commit | 197542c7ec19b41e865be1e84c6c6898de8514d1 (patch) | |
| tree | 79554122d141ca79ec3885492e67a0bc526aadd0 /src/server.cpp | |
| parent | ab507f83e2e0b1f442341724bc47a8480667628e (diff) | |
| download | minetest-197542c7ec19b41e865be1e84c6c6898de8514d1.tar.gz minetest-197542c7ec19b41e865be1e84c6c6898de8514d1.tar.bz2 minetest-197542c7ec19b41e865be1e84c6c6898de8514d1.zip | |
New PROTOCOL_VERSION scheme (allow client to support a range of versions)
Diffstat (limited to 'src/server.cpp')
| -rw-r--r-- | src/server.cpp | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/src/server.cpp b/src/server.cpp index ac243a29c..f4da73fa5 100644 --- a/src/server.cpp +++ b/src/server.cpp @@ -2037,11 +2037,22 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id) Read and check network protocol version */ - u16 net_proto_version = 0; + u16 min_net_proto_version = 0; if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2) - { - net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE]); - } + min_net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE]); + + // Use min if version field doesn't exist (backwards compatibility) + u16 max_net_proto_version = min_net_proto_version; + if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2+2) + max_net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2]); + + u16 net_proto_version = max_net_proto_version; + if(max_net_proto_version != SERVER_PROTOCOL_VERSION && min_net_proto_version <= SERVER_PROTOCOL_VERSION) + net_proto_version = SERVER_PROTOCOL_VERSION; + + verbosestream<<"Server: "<<peer_id<<" Protocol version: min: " + <<min_net_proto_version<<", max: "<<max_net_proto_version + <<", chosen: "<<net_proto_version<<std::endl; getClient(peer_id)->net_proto_version = net_proto_version; @@ -2059,7 +2070,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id) if(g_settings->getBool("strict_protocol_version_checking")) { - if(net_proto_version != PROTOCOL_VERSION) + if(net_proto_version != SERVER_PROTOCOL_VERSION) { actionstream<<"Server: A mismatched client tried to connect" <<" from "<<addr_s<<std::endl; @@ -2068,7 +2079,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id) L"Server version is ") + narrow_to_wide(VERSION_STRING) + L",\n" + L"server's PROTOCOL_VERSION is " - + narrow_to_wide(itos(PROTOCOL_VERSION)) + + narrow_to_wide(itos(SERVER_PROTOCOL_VERSION)) + L", client's PROTOCOL_VERSION is " + narrow_to_wide(itos(net_proto_version)) ); @@ -2310,7 +2321,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id) } // Warnings about protocol version can be issued here - if(getClient(peer_id)->net_proto_version < PROTOCOL_VERSION) + if(getClient(peer_id)->net_proto_version < SERVER_PROTOCOL_VERSION) { SendChatMessage(peer_id, L"# Server: WARNING: YOUR CLIENT IS OLD AND MAY WORK PROPERLY WITH THIS SERVER!"); } |