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Added network protocol version number in protocol

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This commit is contained in:
Perttu Ahola 2011-07-30 20:02:17 +03:00
parent cdadbdbd17
commit 24a662705c
3 changed files with 26 additions and 4 deletions
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8
src/client.cpp
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@ -415,8 +415,9 @@ void Client::step(float dtime)
// [0] u16 TOSERVER_INIT
// [2] u8 SER_FMT_VER_HIGHEST
// [3] u8[20] player_name
// [23] u8[28] password
SharedBuffer<u8> data(2+1+PLAYERNAME_SIZE+PASSWORD_SIZE);
// [23] u8[28] password (new in some version)
// [51] u16 client network protocol version (new in some version)
SharedBuffer<u8> data(2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2);
writeU16(&data[0], TOSERVER_INIT);
writeU8(&data[2], SER_FMT_VER_HIGHEST);
@ -428,6 +429,9 @@ void Client::step(float dtime)
memset((char*)&data[23], 0, PASSWORD_SIZE);
snprintf((char*)&data[23], PASSWORD_SIZE, "%s", m_password.c_str());
// This should be incremented in each version
writeU16(&data[51], 1);
// Send as unreliable
Send(0, data, false);

3
src/clientserver.h
View File

@ -171,7 +171,8 @@ enum ToServerCommand
[0] u16 TOSERVER_INIT
[2] u8 SER_FMT_VER_HIGHEST
[3] u8[20] player_name
[23] u8[28] password
[23] u8[28] password (new in some version)
[51] u16 client network protocol version (new in some version)
*/
TOSERVER_INIT2 = 0x11,

19
src/server.cpp
View File

@ -1966,6 +1966,23 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
derr_server<<DTIME<<"Server: Cannot negotiate "
"serialization version with peer "
<<peer_id<<std::endl;
SendAccessDenied(m_con, peer_id,
L"Your client is too old (map format)");
return;
}
/*
Check network protocol version
*/
u16 net_proto_version = 0;
if(datasize >= 2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2)
{
net_proto_version = readU16(&data[2+1+PLAYERNAME_SIZE+PASSWORD_SIZE]);
}
if(net_proto_version == 0)
{
SendAccessDenied(m_con, peer_id,
L"Your client is too old (network protocol)");
return;
}
@ -1999,7 +2016,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
// Get password
char password[PASSWORD_SIZE];
if(datasize == 2+1+PLAYERNAME_SIZE)
if(datasize >= 2+1+PLAYERNAME_SIZE)
{
// old version - assume blank password
password[0] = 0;