taylorthemushroom/minecraft-pi-reborn
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Improve Server

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This commit is contained in:
TheBrokenRail 2020-11-04 16:05:31 -05:00
parent 39b226685e
commit fd003d8df2
1 changed files with 68 additions and 54 deletions
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122
mods/src/server/server.cpp
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@ -9,7 +9,6 @@
#include <pthread.h>
#include <unistd.h>
#include <netinet/in.h>
#include <SDL/SDL_events.h>
@ -18,30 +17,6 @@
#include "server.h"
#include "server_properties.h"
typedef void (*Minecraft_update_t)(unsigned char *minecraft);
static Minecraft_update_t Minecraft_update = (Minecraft_update_t) 0x16b74;
static void *Minecraft_update_original = NULL;
struct LevelSettings {
unsigned long seed;
int32_t game_type;
};
typedef void (*Minecraft_selectLevel_t)(unsigned char *minecraft, std::string const& level_dir, std::string const& level_name, LevelSettings const& vsettings);
static Minecraft_selectLevel_t Minecraft_selectLevel = (Minecraft_selectLevel_t) 0x16f38;
typedef void (*Minecraft_hostMultiplayer_t)(unsigned char *minecraft, int32_t port);
static Minecraft_hostMultiplayer_t Minecraft_hostMultiplayer = (Minecraft_hostMultiplayer_t) 0x16664;
typedef void *(*ProgressScreen_t)(unsigned char *obj);
static ProgressScreen_t ProgressScreen = (ProgressScreen_t) 0x37044;
typedef void (*Minecraft_setScreen_t)(unsigned char *minecraft, unsigned char *screen);
static Minecraft_setScreen_t Minecraft_setScreen = (Minecraft_setScreen_t) 0x15d6c;
// Store Minecraft For Exit
static unsigned char *stored_minecraft = NULL;
// Server Properties
static ServerProperties &get_server_properties() {
static ServerProperties properties;
@ -82,6 +57,27 @@ static void *read_stdin_thread(__attribute__((unused)) void *data) {
}
}
typedef void (*Minecraft_update_t)(unsigned char *minecraft);
static Minecraft_update_t Minecraft_update = (Minecraft_update_t) 0x16b74;
static void *Minecraft_update_original = NULL;
struct LevelSettings {
unsigned long seed;
int32_t game_type;
};
typedef void (*Minecraft_selectLevel_t)(unsigned char *minecraft, std::string const& level_dir, std::string const& level_name, LevelSettings const& vsettings);
static Minecraft_selectLevel_t Minecraft_selectLevel = (Minecraft_selectLevel_t) 0x16f38;
typedef void (*Minecraft_hostMultiplayer_t)(unsigned char *minecraft, int32_t port);
static Minecraft_hostMultiplayer_t Minecraft_hostMultiplayer = (Minecraft_hostMultiplayer_t) 0x16664;
typedef void *(*ProgressScreen_t)(unsigned char *obj);
static ProgressScreen_t ProgressScreen = (ProgressScreen_t) 0x37044;
typedef void (*Minecraft_setScreen_t)(unsigned char *minecraft, unsigned char *screen);
static Minecraft_setScreen_t Minecraft_setScreen = (Minecraft_setScreen_t) 0x15d6c;
// Create/Start World
static void start_world(unsigned char *minecraft) {
INFO("%s", "Starting Minecraft: Pi Edition Dedicated Server");
@ -102,8 +98,6 @@ static void start_world(unsigned char *minecraft) {
void *screen = ::operator new(0x4c);
screen = (*ProgressScreen)((unsigned char *) screen);
(*Minecraft_setScreen)(minecraft, (unsigned char *) screen);
stored_minecraft = minecraft;
}
typedef const char *(*Minecraft_getProgressMessage_t)(unsigned char *minecraft);
@ -159,14 +153,10 @@ static void print_progress(unsigned char *minecraft) {
}
struct RakNet_RakNetGUID {
uint64_t g;
unsigned short SystemIndex;
unsigned char data[10];
};
struct RakNet_SystemAddress {
union {
sockaddr_in addr4;
} address;
unsigned short debugPort;
unsigned char data[20];
};
typedef RakNet_SystemAddress (*RakNet_RakPeer_GetSystemAddressFromGuid_t)(unsigned char *rak_peer, RakNet_RakNetGUID guid);
@ -176,8 +166,6 @@ static ServerSideNetworkHandler_displayGameMessage_t ServerSideNetworkHandler_di
typedef char *(*RakNet_SystemAddress_ToString_t)(RakNet_SystemAddress *system_address, bool print_delimiter, char delimiter);
static RakNet_SystemAddress_ToString_t RakNet_SystemAddress_ToString = (RakNet_SystemAddress_ToString_t) 0xd6198;
typedef void (*ServerSideNetworkHandler_onDisconnect_t)(unsigned char *server_side_network_handler, RakNet_RakNetGUID const& guid);
static std::string get_banned_ips_file() {
std::string file(getenv("HOME"));
file.append("/.minecraft/banned-ips.txt");
@ -206,15 +194,25 @@ static void find_players(unsigned char *minecraft, std::string target_username,
}
}
// Get IP From Player
static char *get_player_ip(unsigned char *minecraft, unsigned char *player) {
RakNet_RakNetGUID guid = *(RakNet_RakNetGUID *) (player + 0xc08);
unsigned char *rak_net_instance = *(unsigned char **) (minecraft + 0x170);
unsigned char *rak_peer = *(unsigned char **) (rak_net_instance + 0x4);
static RakNet_RakNetGUID *get_rak_net_guid(unsigned char *player) {
return (RakNet_RakNetGUID *) (player + 0xc08);
}
static RakNet_SystemAddress get_system_address(unsigned char *rak_peer, RakNet_RakNetGUID guid) {
unsigned char *rak_peer_vtable = *(unsigned char **) rak_peer;
RakNet_RakPeer_GetSystemAddressFromGuid_t RakNet_RakPeer_GetSystemAddressFromGuid = *(RakNet_RakPeer_GetSystemAddressFromGuid_t *) (rak_peer_vtable + 0xd0);
// Get SystemAddress
RakNet_SystemAddress address = (*RakNet_RakPeer_GetSystemAddressFromGuid)(rak_peer, guid);
return (*RakNet_RakPeer_GetSystemAddressFromGuid)(rak_peer, guid);
}
static unsigned char *get_rak_peer(unsigned char *minecraft) {
unsigned char *rak_net_instance = *(unsigned char **) (minecraft + 0x170);
return *(unsigned char **) (rak_net_instance + 0x4);
}
// Get IP From Player
static char *get_player_ip(unsigned char *minecraft, unsigned char *player) {
RakNet_RakNetGUID guid = *get_rak_net_guid(player);
unsigned char *rak_peer = get_rak_peer(minecraft);
RakNet_SystemAddress address = get_system_address(rak_peer, guid);
// Get IP
return (*RakNet_SystemAddress_ToString)(&address, false, '|');
}
@ -266,27 +264,40 @@ static void Level_saveLevelData_injection(unsigned char *level) {
revert_overwrite((void *) Level_saveLevelData, Level_saveLevelData_original);
}
typedef void (*Minecraft_leaveGame_t)(unsigned char *minecraft, bool save_remote_level);
static Minecraft_leaveGame_t Minecraft_leaveGame = (Minecraft_leaveGame_t) 0x15ea0;
// Stop Server
static bool exit_requested = false;
static void exit_handler(__attribute__((unused)) int data) {
INFO("%s", "Stopping Server");
if (stored_minecraft != NULL) {
unsigned char *level = *(unsigned char **) (stored_minecraft + 0x188);
if (level != NULL) {
// Save Game
(*Level_saveLevelData)(level);
}
exit_requested = true;
}
static void handle_server_stop(unsigned char *minecraft) {
if (exit_requested) {
INFO("%s", "Stopping Server");
// Save And Exit
unsigned char *level = *(unsigned char **) (minecraft + 0x188);
(*Level_saveLevelData)(level);
(*Minecraft_leaveGame)(minecraft, false);
// Stop Game
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
exit_requested = false;
}
// Stop Game
SDL_Event event;
event.type = SDL_QUIT;
SDL_PushEvent(&event);
}
// Get ServerSideNetworkHandler From Minecraft
static unsigned char *get_server_side_network_handler(unsigned char *minecraft) {
return *(unsigned char **) (minecraft + 0x174);
}
// Handle Commands
static void handle_commands(unsigned char *minecraft) {
if (stdin_buffer_complete) {
if ((*Minecraft_isLevelGenerated)(minecraft) && stdin_buffer_complete) {
if (stdin_buffer != NULL) {
unsigned char *server_side_network_handler = *(unsigned char **) (minecraft + 0x174);
unsigned char *server_side_network_handler = get_server_side_network_handler(minecraft);
if (server_side_network_handler != NULL) {
std::string data((char *) stdin_buffer);
@ -355,6 +366,9 @@ static void Minecraft_update_injection(unsigned char *minecraft) {
// Handle Commands
handle_commands(minecraft);
// Server Stop
handle_server_stop(minecraft);
}
typedef void (*Gui_addMessage_t)(unsigned char *gui, std::string const& text);