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Finalize init packets and enable protocol v25

This enables srp.
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est31 committed May 15, 2015
1 parent 19cbb6b commit 8dbf68331386f5f6a40ff0f0a77f5390bdca60b9
@@ -1000,8 +1000,9 @@ void Client::sendInit(const std::string &playerName)
{
NetworkPacket pkt(TOSERVER_INIT, 1 + 2 + 2 + (1 + playerName.size()));

// TODO (later) actually send supported compression modes
pkt << (u8) SER_FMT_VER_HIGHEST_READ << (u8) 42;
// we don't support network compression yet
u16 supp_comp_modes = NETPROTO_COMPRESSION_NONE;
pkt << (u8) SER_FMT_VER_HIGHEST_READ << (u16) supp_comp_modes;
pkt << (u16) CLIENT_PROTOCOL_VERSION_MIN << (u16) CLIENT_PROTOCOL_VERSION_MAX;
pkt << playerName;

@@ -337,7 +337,7 @@ class RemoteClient
void setPendingSerializationVersion(u8 version)
{ m_pending_serialization_version = version; }

void setSupportedCompressionModes(u8 byteFlag)
void setSupportedCompressionModes(u16 byteFlag)
{ m_supported_compressions = byteFlag; }

void confirmSerializationVersion()
@@ -416,7 +416,7 @@ class RemoteClient

std::string m_full_version;

u8 m_supported_compressions;
u16 m_supported_compressions;

/*
time this client was created
@@ -44,26 +44,31 @@ void Client::handleCommand_Hello(NetworkPacket* pkt)
if (pkt->getSize() < 1)
return;

u8 deployed;
u8 serialization_ver;
u16 proto_ver;
u16 compression_mode;
u32 auth_mechs;
std::string username_legacy; // for case insensitivity
*pkt >> deployed >> auth_mechs >> username_legacy;
*pkt >> serialization_ver >> compression_mode >> proto_ver
>> auth_mechs >> username_legacy;

// Chose an auth method we support
AuthMechanism chosen_auth_mechanism = choseAuthMech(auth_mechs);

infostream << "Client: TOCLIENT_HELLO received with "
"deployed=" << ((int)deployed & 0xff) << ", auth_mechs="
<< auth_mechs << ", chosen=" << chosen_auth_mechanism << std::endl;
<< "serialization_ver=" << serialization_ver
<< ", auth_mechs=" << auth_mechs
<< ", compression_mode=" << compression_mode
<< ". Doing auth with mech " << chosen_auth_mechanism << std::endl;

if (!ser_ver_supported(deployed)) {
if (!ser_ver_supported(serialization_ver)) {
infostream << "Client: TOCLIENT_HELLO: Server sent "
<< "unsupported ser_fmt_ver"<< std::endl;
return;
}

m_server_ser_ver = deployed;
m_proto_ver = deployed;
m_server_ser_ver = serialization_ver;
m_proto_ver = proto_ver;

//TODO verify that username_legacy matches sent username, only
// differs in casing (make both uppercase and compare)
@@ -131,7 +131,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
Add TOCLIENT_AUTH_ACCEPT to accept connection from client
*/

#define LATEST_PROTOCOL_VERSION 24
#define LATEST_PROTOCOL_VERSION 25

// Server's supported network protocol range
#define SERVER_PROTOCOL_VERSION_MIN 13
@@ -158,7 +158,9 @@ enum ToClientCommand
/*
Sent after TOSERVER_INIT.
u8 deployed version
u8 deployed serialisation version
u16 deployed network compression mode
u16 deployed protocol version
u32 supported auth methods
std::string username that should be used for legacy hash (for proper casing)
*/
@@ -632,11 +634,11 @@ enum ToServerCommand
/*
Sent first after connected.
[2] u8 SER_FMT_VER_HIGHEST_READ
[3] u8 compression_modes
[4] u16 minimum supported network protocol version
[6] u16 maximum supported network protocol version
[8] std::string player name
u8 serialisation version (=SER_FMT_VER_HIGHEST_READ)
u16 supported network compression modes
u16 minimum supported network protocol version
u16 maximum supported network protocol version
std::string player name
*/

TOSERVER_INIT_LEGACY = 0x10,
@@ -936,7 +938,7 @@ enum AccessDeniedCode {
};

enum NetProtoCompressionMode {
NETPROTO_COMPRESSION_ZLIB = 0,
NETPROTO_COMPRESSION_NONE = 0,
};

const static std::string accessDeniedStrings[SERVER_ACCESSDENIED_MAX] = {
@@ -115,7 +115,7 @@ const ClientCommandFactory clientCommandFactoryTable[TOCLIENT_NUM_MSG_TYPES] =
{
null_command_factory, // 0x00
null_command_factory, // 0x01
null_command_factory, // 0x02
{ "TOCLIENT_HELLO", 0, true }, // 0x02
{ "TOCLIENT_AUTH_ACCEPT", 0, true }, // 0x03
{ "TOCLIENT_ACCEPT_SUDO_MODE", 0, true }, // 0x04
{ "TOCLIENT_DENY_SUDO_MODE", 0, true }, // 0x05
@@ -91,22 +91,22 @@ void Server::handleCommand_Init(NetworkPacket* pkt)
// First byte after command is maximum supported
// serialization version
u8 client_max;
u8 compression_modes;
u16 supp_compr_modes;
u16 min_net_proto_version = 0;
u16 max_net_proto_version;
std::string playerName;

*pkt >> client_max >> compression_modes >> min_net_proto_version
*pkt >> client_max >> supp_compr_modes >> min_net_proto_version
>> max_net_proto_version >> playerName;

u8 our_max = SER_FMT_VER_HIGHEST_READ;
// Use the highest version supported by both
u8 deployed = std::min(client_max, our_max);
u8 depl_serial_v = std::min(client_max, our_max);
// If it's lower than the lowest supported, give up.
if (deployed < SER_FMT_VER_LOWEST)
deployed = SER_FMT_VER_INVALID;
if (depl_serial_v < SER_FMT_VER_LOWEST)
depl_serial_v = SER_FMT_VER_INVALID;

if (deployed == SER_FMT_VER_INVALID) {
if (depl_serial_v == SER_FMT_VER_INVALID) {
actionstream << "Server: A mismatched client tried to connect from "
<< addr_s << std::endl;
infostream<<"Server: Cannot negotiate serialization version with "
@@ -115,7 +115,7 @@ void Server::handleCommand_Init(NetworkPacket* pkt)
return;
}

client->setPendingSerializationVersion(deployed);
client->setPendingSerializationVersion(depl_serial_v);

/*
Read and check network protocol version
@@ -274,7 +274,9 @@ void Server::handleCommand_Init(NetworkPacket* pkt)
NetworkPacket resp_pkt(TOCLIENT_HELLO, 1 + 4
+ legacyPlayerNameCasing.size(), pkt->getPeerId());

resp_pkt << deployed << auth_mechs << legacyPlayerNameCasing;
u16 depl_compress_mode = NETPROTO_COMPRESSION_NONE;
resp_pkt << depl_serial_v << depl_compress_mode << net_proto_version
<< auth_mechs << legacyPlayerNameCasing;

Send(&resp_pkt);

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